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From: Rishabh Parekh <rishabhp@gmail.com>
Date: Wed, 1 Jul 2020 09:06:46 -0700
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To: "Joel M. Halpern" <jmh@joelhalpern.com>
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Subject: Re: [spring] Understanding the replication draft
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Joel,
Your request was not "lost", but it fell between the cracks :)

Anyway, responses inline.

On Mon, Jun 29, 2020 at 3:17 PM Joel M. Halpern <jmh@joelhalpern.com> wrote:
>
> I asked the authors a version of this question, but apparently my
> request got lost.
>
> For now, this is speaking as an individual.  And I sincerely hope that I
> am merely missing something obvious.
>
> I can not figure out from the current draft how the replication segment
> works in a SID (or label) stack.
> Is there an unstated requirement that the segment must be the last one
> in the stack?
> If not, how is a global SID after teh replication SID understood?

[RP] Replication SID does not need to be the last segment in the
stack. Although Section 2 of draft does not state this explicitly, If
there are other non-replication SIDs following the Replication SID,
the NEXT operation at a downstream node of the segment should process
those SIDs as normal.

> Or is a replication SID implicitly also a binding SID, replacing the
> rest of the stack no matter where it is in the stack?
>     In which case it is implicitly effectively last?

[RP] At a root or a Replication SID, when the active segment is a
Replication SID, it does act like a Binding SID in that it steers the
packet into the Replication segment towards downstream nodes. Note
that additional SIDs might be added on top of the Replication SID to
steer the packet from Root to a given downstream node. The Replication
SID will be at bottom of any such SIDs added to steer the packet, but
again it does not have to be the bottom most SID in the stack.

> Given taht a replication segment is qualified to a node, what happens if
> there is more than one in a stack?  Is it ignored when it hits a node it
> does not apply to?

[RP] On a given node, if an active SID in the stack is a Replication
SID that the node does not understand, it cannot process the packet.
This would be similar to any other kind of SID for which a node does
not have any state.
>
> Do I believe this can be made to work?  Yes.
> But I can not understand how the WG could adopt the work with its
> current lack of clarity.
> And this appears to me to be fundamental enough stuff that it can't be
> left to documents in other WGs.  It seems central to the definition and
> processing of replication SIDs.
>

[RP] Section 2 does specify behavior associated with Replication SID
at different nodes in terms of PUSH, CONTINUE or NEXT operations. If
it is not clear, we can enhance the text.
>
> Yours,
> Joel - speaking as a participant
>
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring


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From: Rishabh Parekh <rishabhp@gmail.com>
Date: Wed, 1 Jul 2020 09:18:29 -0700
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To: Huaimo Chen <huaimo.chen@futurewei.com>
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Subject: Re: [spring] WG adoption call for draft-voyer-spring-sr-replication-segment
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Huaimo,
Responses inline below.

On Tue, Jun 30, 2020 at 7:46 AM Huaimo Chen <huaimo.chen@futurewei.com> wro=
te:
>
> Hi Authors,
>
>     I have a few of questions.
>
>     Should a replication-segment be generalized to be a special SID (say =
a multicast SID allocated from a multicast SID block)?
,
[RP] This is a good question. We have left this unspecified in draft
because the Replication SID can be assigned either from SRGB, in which
case it would be same on all nodes of Replication segment, or from
SRLB where it could be different on the nodes.
>
>     Should a replication-segment be associated with just a set of downstr=
eam SIDs without the  node-IDs? Where the downstream SIDs may be replicatio=
n-segments or normal SIDs in some cases (for example when the downstream no=
des are egresses).

[RP] I don't understand the question. Can you clarify what you mean by
"... without Node-IDs"? Note that Node-IDs are part of the Replication
segment state, but only Replication SIDs are in the label stack.
>
>     Should a state in a node for a replication-segment be removed? If a s=
tate is stored in a node (each node) for a (each) replication segment of a =
(each) SR P2MP path, there may be some scalability issue. This seems not co=
nsistent with the principles of the segment routing, in which no state is s=
tored in the core of the network.

[RP] As mentioned in Introduction of the draft, there is no state
required on intermediate nodes that are not part of a Replication
segment.

>
> Best Regards,
> Huaimo
> -----Original Message-----
> From: spring <spring-bounces@ietf.org> On Behalf Of Stone, Andrew (Nokia =
- CA/Ottawa)
> Sent: Monday, June 22, 2020 2:44 PM
> To: bruno.decraene@orange.com; spring@ietf.org
> Subject: Re: [spring] WG adoption call for draft-voyer-spring-sr-replicat=
ion-segment
>
> Hi Spring WG
>
> Support adoption.
>
> Willing to work on the document, and already participating in related doc=
uments in PCE and IDR.
>
> Thanks
> Andrew
>
>
> On 2020-06-22, 10:46 AM, "spring on behalf of bruno.decraene@orange.com" =
<spring-bounces@ietf.org on behalf of bruno.decraene@orange.com> wrote:
>
>     Hi SPRING WG,
>
>     Authors of draft-voyer-spring-sr-replication-segment [1] have asked f=
or WG adoption.
>
>     Please indicate your support, comments, or objection, for adopting th=
is draft as a working group item by July 6th 2020.
>
>     Could those who are willing to work on this document, please notify t=
he list. That gives us an indication of the energy level in the working gro=
up to work on this.
>
>     As a reminder, the call for IPR has been done last November. [2]
>
>     Thanks,
>     Regards,
>     Bruno, Jim, Joel
>
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To: Rishabh Parekh <rishabhp@gmail.com>
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References: <94415742-fc4e-1774-bf96-01eac3672bfb@joelhalpern.com> <CABjMoXYCsXb-iP55PsNWHBG187Lm7-2PXfgD3qRn_aD6ppDuMw@mail.gmail.com>
From: Joel Halpern Direct <jmh.direct@joelhalpern.com>
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Subject: Re: [spring] Understanding the replication draft
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I am not sure I understand the answer.  I do see that the local 
processing is described in the draft.  But that is not what I am asking.

I am going to try to simplify the conventions to ask the question.  I 
will list SIDs in the order they will be visited.  And mark G-SID-X for 
a global SID, and R-SID-X for a replication SID.

Suppose the stack looks like

G-SID-1
R-SID-1
G-SID-2
G-SID-3
R-SID-2
G-SID-4

So the packet gets delivered to the node identified by G-SID-1.  Great. 
That node sees an R-SID which it understands.  So presumably it 
replicates the packet, and sends the packet (possibly with some 
prepended labels, presumably different prepended labels for different 
destination, controlled by policy.  No problem with that part.)

Now each of the packets geet to the end of the prepended labels, and 
each copy sees G-SID-2.  At which point all of these various nodes that 
have received copies of the packet all send it to the node identified by 
G-SID-2.  Huh?  We just bombarded a node with useless and potentially 
harmful copies of the packet.  then all those copies go to G-SID-3, 
which then processes R-SID-2, and replicates each and every copy to some 
set of destinations.  Which then eventually bombard the node identified 
by G-SID-4.

If the document said that the replication SID when it appears in the 
stack must be the last SID in the stack, and was either terminal for SID 
processing or was a binding SID, the above problem would be avoided. 
But the draft does not say that.  Nor does your reply.

Is there some other way this explosion is avoided?  This seems to need 
to be described in the SPRING draft in order for any of us to understand 
if the approach is what we want as a starting point.  just the idea of 
replication segments is not, in my personal view, enough clarity or 
value to be adopted as a working group document.

Yours,
Joel

On 7/1/2020 12:06 PM, Rishabh Parekh wrote:
> Joel,
> Your request was not "lost", but it fell between the cracks :)
> 
> Anyway, responses inline.
> 
> On Mon, Jun 29, 2020 at 3:17 PM Joel M. Halpern <jmh@joelhalpern.com> wrote:
>>
>> I asked the authors a version of this question, but apparently my
>> request got lost.
>>
>> For now, this is speaking as an individual.  And I sincerely hope that I
>> am merely missing something obvious.
>>
>> I can not figure out from the current draft how the replication segment
>> works in a SID (or label) stack.
>> Is there an unstated requirement that the segment must be the last one
>> in the stack?
>> If not, how is a global SID after teh replication SID understood?
> 
> [RP] Replication SID does not need to be the last segment in the
> stack. Although Section 2 of draft does not state this explicitly, If
> there are other non-replication SIDs following the Replication SID,
> the NEXT operation at a downstream node of the segment should process
> those SIDs as normal.
> 
>> Or is a replication SID implicitly also a binding SID, replacing the
>> rest of the stack no matter where it is in the stack?
>>      In which case it is implicitly effectively last?
> 
> [RP] At a root or a Replication SID, when the active segment is a
> Replication SID, it does act like a Binding SID in that it steers the
> packet into the Replication segment towards downstream nodes. Note
> that additional SIDs might be added on top of the Replication SID to
> steer the packet from Root to a given downstream node. The Replication
> SID will be at bottom of any such SIDs added to steer the packet, but
> again it does not have to be the bottom most SID in the stack.
> 
>> Given taht a replication segment is qualified to a node, what happens if
>> there is more than one in a stack?  Is it ignored when it hits a node it
>> does not apply to?
> 
> [RP] On a given node, if an active SID in the stack is a Replication
> SID that the node does not understand, it cannot process the packet.
> This would be similar to any other kind of SID for which a node does
> not have any state.
>>
>> Do I believe this can be made to work?  Yes.
>> But I can not understand how the WG could adopt the work with its
>> current lack of clarity.
>> And this appears to me to be fundamental enough stuff that it can't be
>> left to documents in other WGs.  It seems central to the definition and
>> processing of replication SIDs.
>>
> 
> [RP] Section 2 does specify behavior associated with Replication SID
> at different nodes in terms of PUSH, CONTINUE or NEXT operations. If
> it is not clear, we can enhance the text.
>>
>> Yours,
>> Joel - speaking as a participant
>>
>> _______________________________________________
>> spring mailing list
>> spring@ietf.org
>> https://www.ietf.org/mailman/listinfo/spring
> 
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
> 


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From: Rishabh Parekh <rishabhp@gmail.com>
Date: Wed, 1 Jul 2020 11:51:31 -0700
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To: Joel Halpern Direct <jmh.direct@joelhalpern.com>
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Subject: Re: [spring] Understanding the replication draft
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Joel,
I now understand the question better with the example you provided.

The draft states that replication SID must be still part of the stack
so that downstream node can process it appropriately. In your example,
if replication SID is the same at all nodes, R-SID-1 will be in the
label stack and will be the active SID when the packet reaches a given
downstream node. In the use cases we describe, either the replication
SID is the last SID in the stack and performs either a NEXT operation
to process the payload, or a CONTINUE operation to stitch the packet
to another replication segment as described in PIM WG draft, or both
NEXT and CONTINUE. But the draft does not preclude NEXT operation of
R-SID1 with the label stack in your example. Of course, care must be
taken to avoid the "explosion" as you describe it. G-SID-2 has to map
to a unique node; for example, it may be an Anycast-SID that takes
packet to distinct nodes from each of the downstream node, or the
downstream nodes can be border nodes connecting to other segment
routing domains where G-SID-2 resolves to distinct nodes in each
domain.

Although the use cases are not intended to cover the scenario you
describe, maybe we can document this "explosion" in security
considerations of the draft.

-Rishabh


On Wed, Jul 1, 2020 at 9:24 AM Joel Halpern Direct
<jmh.direct@joelhalpern.com> wrote:
>
> I am not sure I understand the answer.  I do see that the local
> processing is described in the draft.  But that is not what I am asking.
>
> I am going to try to simplify the conventions to ask the question.  I
> will list SIDs in the order they will be visited.  And mark G-SID-X for
> a global SID, and R-SID-X for a replication SID.
>
> Suppose the stack looks like
>
> G-SID-1
> R-SID-1
> G-SID-2
> G-SID-3
> R-SID-2
> G-SID-4
>
> So the packet gets delivered to the node identified by G-SID-1.  Great.
> That node sees an R-SID which it understands.  So presumably it
> replicates the packet, and sends the packet (possibly with some
> prepended labels, presumably different prepended labels for different
> destination, controlled by policy.  No problem with that part.)
>
> Now each of the packets geet to the end of the prepended labels, and
> each copy sees G-SID-2.  At which point all of these various nodes that
> have received copies of the packet all send it to the node identified by
> G-SID-2.  Huh?  We just bombarded a node with useless and potentially
> harmful copies of the packet.  then all those copies go to G-SID-3,
> which then processes R-SID-2, and replicates each and every copy to some
> set of destinations.  Which then eventually bombard the node identified
> by G-SID-4.
>
> If the document said that the replication SID when it appears in the
> stack must be the last SID in the stack, and was either terminal for SID
> processing or was a binding SID, the above problem would be avoided.
> But the draft does not say that.  Nor does your reply.
>
> Is there some other way this explosion is avoided?  This seems to need
> to be described in the SPRING draft in order for any of us to understand
> if the approach is what we want as a starting point.  just the idea of
> replication segments is not, in my personal view, enough clarity or
> value to be adopted as a working group document.
>
> Yours,
> Joel
>
> On 7/1/2020 12:06 PM, Rishabh Parekh wrote:
> > Joel,
> > Your request was not "lost", but it fell between the cracks :)
> >
> > Anyway, responses inline.
> >
> > On Mon, Jun 29, 2020 at 3:17 PM Joel M. Halpern <jmh@joelhalpern.com> wrote:
> >>
> >> I asked the authors a version of this question, but apparently my
> >> request got lost.
> >>
> >> For now, this is speaking as an individual.  And I sincerely hope that I
> >> am merely missing something obvious.
> >>
> >> I can not figure out from the current draft how the replication segment
> >> works in a SID (or label) stack.
> >> Is there an unstated requirement that the segment must be the last one
> >> in the stack?
> >> If not, how is a global SID after teh replication SID understood?
> >
> > [RP] Replication SID does not need to be the last segment in the
> > stack. Although Section 2 of draft does not state this explicitly, If
> > there are other non-replication SIDs following the Replication SID,
> > the NEXT operation at a downstream node of the segment should process
> > those SIDs as normal.
> >
> >> Or is a replication SID implicitly also a binding SID, replacing the
> >> rest of the stack no matter where it is in the stack?
> >>      In which case it is implicitly effectively last?
> >
> > [RP] At a root or a Replication SID, when the active segment is a
> > Replication SID, it does act like a Binding SID in that it steers the
> > packet into the Replication segment towards downstream nodes. Note
> > that additional SIDs might be added on top of the Replication SID to
> > steer the packet from Root to a given downstream node. The Replication
> > SID will be at bottom of any such SIDs added to steer the packet, but
> > again it does not have to be the bottom most SID in the stack.
> >
> >> Given taht a replication segment is qualified to a node, what happens if
> >> there is more than one in a stack?  Is it ignored when it hits a node it
> >> does not apply to?
> >
> > [RP] On a given node, if an active SID in the stack is a Replication
> > SID that the node does not understand, it cannot process the packet.
> > This would be similar to any other kind of SID for which a node does
> > not have any state.
> >>
> >> Do I believe this can be made to work?  Yes.
> >> But I can not understand how the WG could adopt the work with its
> >> current lack of clarity.
> >> And this appears to me to be fundamental enough stuff that it can't be
> >> left to documents in other WGs.  It seems central to the definition and
> >> processing of replication SIDs.
> >>
> >
> > [RP] Section 2 does specify behavior associated with Replication SID
> > at different nodes in terms of PUSH, CONTINUE or NEXT operations. If
> > it is not clear, we can enhance the text.
> >>
> >> Yours,
> >> Joel - speaking as a participant
> >>
> >> _______________________________________________
> >> spring mailing list
> >> spring@ietf.org
> >> https://www.ietf.org/mailman/listinfo/spring
> >
> > _______________________________________________
> > spring mailing list
> > spring@ietf.org
> > https://www.ietf.org/mailman/listinfo/spring
> >


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From: Rishabh Parekh <rishabhp@gmail.com>
Date: Wed, 1 Jul 2020 12:01:41 -0700
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To: Alexander Vainshtein <Alexander.Vainshtein@rbbn.com>
Cc: Joel Halpern Direct <jmh.direct@joelhalpern.com>, "spring@ietf.org" <spring@ietf.org>
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Subject: Re: [spring] Understanding the replication draft
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Sasha,
As I explained in my reply to Joel's e-mail, use cases in draft only
cover scenarios where R-SID-1 is the last segment in stack for either
NEXT or CONTINUE operation, but stack Joel described is not excluded
as long as G-SID-2 resolves to a unique node. How the node that
imposes this stack determines the value of G-SID-2, or other segments
in the stack after R-SID-1 is outside scope of the draft.

-Rishabh


On Wed, Jul 1, 2020 at 9:42 AM Alexander Vainshtein
<Alexander.Vainshtein@rbbn.com> wrote:
>
> Joel, Rishabh and all,
> I think that in the case of SR-MPLS the problems with Joel's example begi=
n much earlier.
>
> The node that sends the packet using the list of SIDs must encode each SI=
D as a label in the label stack.
>
> It knows how to do so for G-SID-1 which is represented as an index -- not=
hing new with that
> It probably knows how to do so for R-SID-1.
>
> But encoding G-SID-2 (also known as an index) becomes outright impossible=
 if the Downstream nodes of the Replication segment have different SRGB bas=
e.
>
> What, if anything, did I miss?
> Is usage of Replication segment limited to the case when all the nodes in=
 the SR-MPLS domain have the same SRGB base?
>
> And, BTW, how is R-SID-1 encoded in the SRH in the case of SRv6?
>
> My 2c,
> Sasha
>
>
>
>
>
> Get Outlook for Android
>
> ________________________________
> From: spring <spring-bounces@ietf.org> on behalf of Joel Halpern Direct <=
jmh.direct@joelhalpern.com>
> Sent: Wednesday, July 1, 2020, 19:24
> To: Rishabh Parekh
> Cc: spring@ietf.org
> Subject: Re: [spring] Understanding the replication draft
>
> I am not sure I understand the answer.  I do see that the local
> processing is described in the draft.  But that is not what I am asking.
>
> I am going to try to simplify the conventions to ask the question.  I
> will list SIDs in the order they will be visited.  And mark G-SID-X for
> a global SID, and R-SID-X for a replication SID.
>
> Suppose the stack looks like
>
> G-SID-1
> R-SID-1
> G-SID-2
> G-SID-3
> R-SID-2
> G-SID-4
>
> So the packet gets delivered to the node identified by G-SID-1.  Great.
> That node sees an R-SID which it understands.  So presumably it
> replicates the packet, and sends the packet (possibly with some
> prepended labels, presumably different prepended labels for different
> destination, controlled by policy.  No problem with that part.)
>
> Now each of the packets geet to the end of the prepended labels, and
> each copy sees G-SID-2.  At which point all of these various nodes that
> have received copies of the packet all send it to the node identified by
> G-SID-2.  Huh?  We just bombarded a node with useless and potentially
> harmful copies of the packet.  then all those copies go to G-SID-3,
> which then processes R-SID-2, and replicates each and every copy to some
> set of destinations.  Which then eventually bombard the node identified
> by G-SID-4.
>
> If the document said that the replication SID when it appears in the
> stack must be the last SID in the stack, and was either terminal for SID
> processing or was a binding SID, the above problem would be avoided.
> But the draft does not say that.  Nor does your reply.
>
> Is there some other way this explosion is avoided?  This seems to need
> to be described in the SPRING draft in order for any of us to understand
> if the approach is what we want as a starting point.  just the idea of
> replication segments is not, in my personal view, enough clarity or
> value to be adopted as a working group document.
>
> Yours,
> Joel
>
> On 7/1/2020 12:06 PM, Rishabh Parekh wrote:
> > Joel,
> > Your request was not "lost", but it fell between the cracks :)
> >
> > Anyway, responses inline.
> >
> > On Mon, Jun 29, 2020 at 3:17 PM Joel M. Halpern <jmh@joelhalpern.com> w=
rote:
> >>
> >> I asked the authors a version of this question, but apparently my
> >> request got lost.
> >>
> >> For now, this is speaking as an individual.  And I sincerely hope that=
 I
> >> am merely missing something obvious.
> >>
> >> I can not figure out from the current draft how the replication segmen=
t
> >> works in a SID (or label) stack.
> >> Is there an unstated requirement that the segment must be the last one
> >> in the stack?
> >> If not, how is a global SID after teh replication SID understood?
> >
> > [RP] Replication SID does not need to be the last segment in the
> > stack. Although Section 2 of draft does not state this explicitly, If
> > there are other non-replication SIDs following the Replication SID,
> > the NEXT operation at a downstream node of the segment should process
> > those SIDs as normal.
> >
> >> Or is a replication SID implicitly also a binding SID, replacing the
> >> rest of the stack no matter where it is in the stack?
> >>      In which case it is implicitly effectively last?
> >
> > [RP] At a root or a Replication SID, when the active segment is a
> > Replication SID, it does act like a Binding SID in that it steers the
> > packet into the Replication segment towards downstream nodes. Note
> > that additional SIDs might be added on top of the Replication SID to
> > steer the packet from Root to a given downstream node. The Replication
> > SID will be at bottom of any such SIDs added to steer the packet, but
> > again it does not have to be the bottom most SID in the stack.
> >
> >> Given taht a replication segment is qualified to a node, what happens =
if
> >> there is more than one in a stack?  Is it ignored when it hits a node =
it
> >> does not apply to?
> >
> > [RP] On a given node, if an active SID in the stack is a Replication
> > SID that the node does not understand, it cannot process the packet.
> > This would be similar to any other kind of SID for which a node does
> > not have any state.
> >>
> >> Do I believe this can be made to work?  Yes.
> >> But I can not understand how the WG could adopt the work with its
> >> current lack of clarity.
> >> And this appears to me to be fundamental enough stuff that it can't be
> >> left to documents in other WGs.  It seems central to the definition an=
d
> >> processing of replication SIDs.
> >>
> >
> > [RP] Section 2 does specify behavior associated with Replication SID
> > at different nodes in terms of PUSH, CONTINUE or NEXT operations. If
> > it is not clear, we can enhance the text.
> >>
> >> Yours,
> >> Joel - speaking as a participant
> >>
> >> _______________________________________________
> >> spring mailing list
> >> spring@ietf.org
> >> https://clicktime.symantec.com/3RziqzXxh1X11kornov4J3B6H2?u=3Dhttps%3A=
%2F%2Fwww.ietf.org%2Fmailman%2Flistinfo%2Fspring
> >
> > _______________________________________________
> > spring mailing list
> > spring@ietf.org
> > https://clicktime.symantec.com/3RziqzXxh1X11kornov4J3B6H2?u=3Dhttps%3A%=
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> >
>
> _______________________________________________
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>
>
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From: Robert Raszuk <robert@raszuk.net>
Date: Wed, 1 Jul 2020 21:27:33 +0200
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To: Rishabh Parekh <rishabhp@gmail.com>
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Subject: Re: [spring] Understanding the replication draft
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--0000000000001e35f905a9664970
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Hi Rishabh,

 > Of course, care must be
> taken to avoid the "explosion" as you describe it. G-SID-2 has to map
> to a unique node; for example, it may be an Anycast-SID that takes
> packet to distinct nodes from each of the downstream node, or the
> downstream nodes can be border nodes connecting to other segment
> routing domains where G-SID-2 resolves to distinct nodes in each
> domain.

I think you are stretching it too thin.

See even if G-SID-2 is anycast SID you have zero assurance that physical
nodes packets will land on would be at all diverse.

Likewise crossing domains yet providing identical global SID now to be a
different node in each such domain to me is not a realistic example.

I think we have two options:

A) Firmly state that replication SID MUST be the last one on the stack

B) Instead of real SID after the replication SID provide a binding SID
which locally will be mapped to a different SID list imposed to
each replicated flow.

What is currently in the draft seems to be very counterintuitive and IMHO
will result in operational difficulties.

Thx a lot,
R.

--0000000000001e35f905a9664970
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<div dir=3D"ltr"><div dir=3D"ltr">Hi Rishabh,<div><br></div><div>=C2=A0&gt;=
 Of course, care must be<br>&gt; taken to avoid the &quot;explosion&quot; a=
s you describe it. G-SID-2 has to map<br>&gt; to a unique node; for example=
, it may be an Anycast-SID that takes<br>&gt; packet to distinct nodes from=
 each of the downstream node, or the<br>&gt; downstream nodes can be border=
 nodes connecting to other segment<br>&gt; routing domains where G-SID-2 re=
solves to distinct nodes in each<br>&gt; domain.</div><div><br></div><div>I=
 think you are stretching=C2=A0it too thin.=C2=A0</div><div><br></div><div>=
See even if G-SID-2 is anycast SID you have zero assurance that physical no=
des packets will land on would be at all diverse.=C2=A0</div><div><br></div=
><div>Likewise crossing domains yet providing identical global SID now to b=
e a different node in each such domain to me is not a realistic example.=C2=
=A0</div><div><br></div><div>I think we have two options:=C2=A0</div><div><=
br></div><div>A) Firmly state that replication SID MUST be the last one on =
the stack=C2=A0</div><div><br></div><div>B) Instead of real SID after the r=
eplication SID provide a binding SID which locally will be mapped to a diff=
erent SID list imposed to each=C2=A0replicated flow.=C2=A0</div><div><br></=
div><div>What is currently in the draft seems to be very counterintuitive a=
nd IMHO will result in operational difficulties.=C2=A0</div><div><br></div>=
<div>Thx a lot,</div><div>R.</div></div></div>

--0000000000001e35f905a9664970--


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From: Rishabh Parekh <rishabhp@gmail.com>
Date: Wed, 1 Jul 2020 12:39:47 -0700
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To: Robert Raszuk <robert@raszuk.net>
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Subject: Re: [spring] Understanding the replication draft
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Robert,

>A) Firmly state that replication SID MUST be the last one on the stack
>B) Instead of real SID after the replication SID provide a binding SID which locally will be mapped to a different SID list imposed to each replicated flow.

We would be fine with A), but we don't want to exclude possibility of
something like what you describe in B.

-Rishabh

On Wed, Jul 1, 2020 at 12:27 PM Robert Raszuk <robert@raszuk.net> wrote:
>
> Hi Rishabh,
>
>  > Of course, care must be
> > taken to avoid the "explosion" as you describe it. G-SID-2 has to map
> > to a unique node; for example, it may be an Anycast-SID that takes
> > packet to distinct nodes from each of the downstream node, or the
> > downstream nodes can be border nodes connecting to other segment
> > routing domains where G-SID-2 resolves to distinct nodes in each
> > domain.
>
> I think you are stretching it too thin.
>
> See even if G-SID-2 is anycast SID you have zero assurance that physical nodes packets will land on would be at all diverse.
>
> Likewise crossing domains yet providing identical global SID now to be a different node in each such domain to me is not a realistic example.
>
> I think we have two options:
>
> A) Firmly state that replication SID MUST be the last one on the stack
>
> B) Instead of real SID after the replication SID provide a binding SID which locally will be mapped to a different SID list imposed to each replicated flow.
>
> What is currently in the draft seems to be very counterintuitive and IMHO will result in operational difficulties.
>
> Thx a lot,
> R.


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Subject: Re: [spring] Understanding the replication draft
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Any SID behavior needs to be defined in a SPRING draft as far as I can 
tell.  PIM defines how those behaviors are triggered / associated.  At 
least, that is how I have understood all the other behavioral and 
routing protocol handling.  It is, for example, why the network 
programming draft was a SPRING draft and not an IDR or LSR draft.
So if "continue" is a new behavior, it needs to be defined here, not in 
a PIM draft.

And from everything you describe, this draft should require that the 
replication segment be the last element in the SID stack (label stack, 
...) as it appears in the packet at the time of reception and processing 
of the replication segment identifier.  That can result in local 
processing of the underlying packet, gatewaying of the packet to other 
multicast, replication of the packet with new SID stacks on the 
different replicas, etc.  But having a stack after the replication 
segment sure sounds like a recipe for disaster.

Yours,
Joel

On 7/1/2020 2:51 PM, Rishabh Parekh wrote:
> Joel,
> I now understand the question better with the example you provided.
> 
> The draft states that replication SID must be still part of the stack
> so that downstream node can process it appropriately. In your example,
> if replication SID is the same at all nodes, R-SID-1 will be in the
> label stack and will be the active SID when the packet reaches a given
> downstream node. In the use cases we describe, either the replication
> SID is the last SID in the stack and performs either a NEXT operation
> to process the payload, or a CONTINUE operation to stitch the packet
> to another replication segment as described in PIM WG draft, or both
> NEXT and CONTINUE. But the draft does not preclude NEXT operation of
> R-SID1 with the label stack in your example. Of course, care must be
> taken to avoid the "explosion" as you describe it. G-SID-2 has to map
> to a unique node; for example, it may be an Anycast-SID that takes
> packet to distinct nodes from each of the downstream node, or the
> downstream nodes can be border nodes connecting to other segment
> routing domains where G-SID-2 resolves to distinct nodes in each
> domain.
> 
> Although the use cases are not intended to cover the scenario you
> describe, maybe we can document this "explosion" in security
> considerations of the draft.
> 
> -Rishabh
> 
> 
> On Wed, Jul 1, 2020 at 9:24 AM Joel Halpern Direct
> <jmh.direct@joelhalpern.com> wrote:
>>
>> I am not sure I understand the answer.  I do see that the local
>> processing is described in the draft.  But that is not what I am asking.
>>
>> I am going to try to simplify the conventions to ask the question.  I
>> will list SIDs in the order they will be visited.  And mark G-SID-X for
>> a global SID, and R-SID-X for a replication SID.
>>
>> Suppose the stack looks like
>>
>> G-SID-1
>> R-SID-1
>> G-SID-2
>> G-SID-3
>> R-SID-2
>> G-SID-4
>>
>> So the packet gets delivered to the node identified by G-SID-1.  Great.
>> That node sees an R-SID which it understands.  So presumably it
>> replicates the packet, and sends the packet (possibly with some
>> prepended labels, presumably different prepended labels for different
>> destination, controlled by policy.  No problem with that part.)
>>
>> Now each of the packets geet to the end of the prepended labels, and
>> each copy sees G-SID-2.  At which point all of these various nodes that
>> have received copies of the packet all send it to the node identified by
>> G-SID-2.  Huh?  We just bombarded a node with useless and potentially
>> harmful copies of the packet.  then all those copies go to G-SID-3,
>> which then processes R-SID-2, and replicates each and every copy to some
>> set of destinations.  Which then eventually bombard the node identified
>> by G-SID-4.
>>
>> If the document said that the replication SID when it appears in the
>> stack must be the last SID in the stack, and was either terminal for SID
>> processing or was a binding SID, the above problem would be avoided.
>> But the draft does not say that.  Nor does your reply.
>>
>> Is there some other way this explosion is avoided?  This seems to need
>> to be described in the SPRING draft in order for any of us to understand
>> if the approach is what we want as a starting point.  just the idea of
>> replication segments is not, in my personal view, enough clarity or
>> value to be adopted as a working group document.
>>
>> Yours,
>> Joel
>>
>> On 7/1/2020 12:06 PM, Rishabh Parekh wrote:
>>> Joel,
>>> Your request was not "lost", but it fell between the cracks :)
>>>
>>> Anyway, responses inline.
>>>
>>> On Mon, Jun 29, 2020 at 3:17 PM Joel M. Halpern <jmh@joelhalpern.com> wrote:
>>>>
>>>> I asked the authors a version of this question, but apparently my
>>>> request got lost.
>>>>
>>>> For now, this is speaking as an individual.  And I sincerely hope that I
>>>> am merely missing something obvious.
>>>>
>>>> I can not figure out from the current draft how the replication segment
>>>> works in a SID (or label) stack.
>>>> Is there an unstated requirement that the segment must be the last one
>>>> in the stack?
>>>> If not, how is a global SID after teh replication SID understood?
>>>
>>> [RP] Replication SID does not need to be the last segment in the
>>> stack. Although Section 2 of draft does not state this explicitly, If
>>> there are other non-replication SIDs following the Replication SID,
>>> the NEXT operation at a downstream node of the segment should process
>>> those SIDs as normal.
>>>
>>>> Or is a replication SID implicitly also a binding SID, replacing the
>>>> rest of the stack no matter where it is in the stack?
>>>>       In which case it is implicitly effectively last?
>>>
>>> [RP] At a root or a Replication SID, when the active segment is a
>>> Replication SID, it does act like a Binding SID in that it steers the
>>> packet into the Replication segment towards downstream nodes. Note
>>> that additional SIDs might be added on top of the Replication SID to
>>> steer the packet from Root to a given downstream node. The Replication
>>> SID will be at bottom of any such SIDs added to steer the packet, but
>>> again it does not have to be the bottom most SID in the stack.
>>>
>>>> Given taht a replication segment is qualified to a node, what happens if
>>>> there is more than one in a stack?  Is it ignored when it hits a node it
>>>> does not apply to?
>>>
>>> [RP] On a given node, if an active SID in the stack is a Replication
>>> SID that the node does not understand, it cannot process the packet.
>>> This would be similar to any other kind of SID for which a node does
>>> not have any state.
>>>>
>>>> Do I believe this can be made to work?  Yes.
>>>> But I can not understand how the WG could adopt the work with its
>>>> current lack of clarity.
>>>> And this appears to me to be fundamental enough stuff that it can't be
>>>> left to documents in other WGs.  It seems central to the definition and
>>>> processing of replication SIDs.
>>>>
>>>
>>> [RP] Section 2 does specify behavior associated with Replication SID
>>> at different nodes in terms of PUSH, CONTINUE or NEXT operations. If
>>> it is not clear, we can enhance the text.
>>>>
>>>> Yours,
>>>> Joel - speaking as a participant
>>>>
>>>> _______________________________________________
>>>> spring mailing list
>>>> spring@ietf.org
>>>> https://www.ietf.org/mailman/listinfo/spring
>>>
>>> _______________________________________________
>>> spring mailing list
>>> spring@ietf.org
>>> https://www.ietf.org/mailman/listinfo/spring
>>>


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I don't even bind if the binding SID behavior is part of the replication 
SID (with different binding results in different directions).  Which 
would seem to allow multi-stage replication even with requirement A.

Allowing a binding SID after the replication SID seems to require that 
the explicit binding SID, t the replicating node, have different 
meanings for different directions.  Or something??

Yours,
Joel

On 7/1/2020 3:42 PM, Alexander Vainshtein wrote:
> Robert, Rishabh and all,
> I concur with Robert but would like to add that Option A woild 
> effectively eliminate the possibility of building MDTs with more than 
> one level using Replication Segments.
> 
> Which is probably not the intent of the draft.
> 
> My 2c.
> 
> Get Outlook for Android <https://aka.ms/ghei36>
> 
> ------------------------------------------------------------------------
> *From:* spring <spring-bounces@ietf.org> on behalf of Robert Raszuk 
> <robert@raszuk.net>
> *Sent:* Wednesday, July 1, 2020, 22:27
> *To:* Rishabh Parekh
> *Cc:* Joel Halpern Direct; spring@ietf.org
> *Subject:* Re: [spring] Understanding the replication draft
> 
> Hi Rishabh,
> 
>  Â > Of course, care must be
>  > taken to avoid the "explosion" as you describe it. G-SID-2 has to map
>  > to a unique node; for example, it may be an Anycast-SID that takes
>  > packet to distinct nodes from each of the downstream node, or the
>  > downstream nodes can be border nodes connecting to other segment
>  > routing domains where G-SID-2 resolves to distinct nodes in each
>  > domain.
> 
> I think you are stretchingÂ it too thin.
> 
> See even if G-SID-2 is anycast SID you have zero assurance that physical 
> nodes packets will land on would be at all diverse.
> 
> Likewise crossing domains yet providing identical global SID now to be a 
> different node in each such domain to me is not a realistic example.
> 
> I think we have two options:
> 
> A) Firmly state that replication SID MUST be the last one on the stack
> 
> B) Instead of real SID after the replication SID provide a binding SID 
> which locally will be mapped to a different SID list imposed to 
> eachÂ replicated flow.
> 
> What is currently in the draft seems to be very counterintuitive and 
> IMHO will result in operational difficulties.
> 
> Thx a lot,
> R.
> 
> 
> 
> ------------------------------------------------------------------------
> Notice: This e-mail together with any attachments may contain 
> information of Ribbon Communications Inc. that is confidential and/or 
> proprietary for the sole use of the intended recipient. Any review, 
> disclosure, reliance or distribution by others or forwarding without 
> express permission is strictly prohibited. If you are not the intended 
> recipient, please notify the sender immediately and then delete all 
> copies, including any attachments.
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From: Robert Raszuk <robert@raszuk.net>
Date: Wed, 1 Jul 2020 23:56:43 +0200
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To: Alexander Vainshtein <Alexander.Vainshtein@rbbn.com>
Cc: Rishabh Parekh <rishabhp@gmail.com>, Joel Halpern Direct <jmh.direct@joelhalpern.com>,  "spring@ietf.org" <spring@ietf.org>
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Subject: Re: [spring] Understanding the replication draft
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--000000000000981eaa05a9685e85
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Hi Alexander,

Do we really know how to build MDTs as source routed chains ?

If that is the goal here IMHO it deserves a whole separate document ....

In general when we replicate we take a packet and copy it to interfaces A,
B ... Z. That's a local rule I presume executed for flows containing
R-SID-n. But we just can't send the packet with identical list of SIDs from
that point on any outgoing interface as results will be rather poor.

We need custom list for each outbound interface and that is something I am
not seeing in the draft. Till this is explained I would keep thinking that
building MDTs should be more of as control plane task.

Thx.
R.

On Wed, Jul 1, 2020 at 9:42 PM Alexander Vainshtein <
Alexander.Vainshtein@rbbn.com> wrote:

> Robert, Rishabh and all,
> I concur with Robert but would like to add that Option A woild effectively
> eliminate the possibility of building MDTs with more than one level using
> Replication Segments.
>
> Which is probably not the intent of the draft.
>
> My 2c.
>
> Get Outlook for Android <https://aka.ms/ghei36>
>
> ------------------------------
> *From:* spring <spring-bounces@ietf.org> on behalf of Robert Raszuk <
> robert@raszuk.net>
> *Sent:* Wednesday, July 1, 2020, 22:27
> *To:* Rishabh Parekh
> *Cc:* Joel Halpern Direct; spring@ietf.org
> *Subject:* Re: [spring] Understanding the replication draft
>
> Hi Rishabh,
>
>  > Of course, care must be
> > taken to avoid the "explosion" as you describe it. G-SID-2 has to map
> > to a unique node; for example, it may be an Anycast-SID that takes
> > packet to distinct nodes from each of the downstream node, or the
> > downstream nodes can be border nodes connecting to other segment
> > routing domains where G-SID-2 resolves to distinct nodes in each
> > domain.
>
> I think you are stretching it too thin.
>
> See even if G-SID-2 is anycast SID you have zero assurance that physical
> nodes packets will land on would be at all diverse.
>
> Likewise crossing domains yet providing identical global SID now to be a
> different node in each such domain to me is not a realistic example.
>
> I think we have two options:
>
> A) Firmly state that replication SID MUST be the last one on the stack
>
> B) Instead of real SID after the replication SID provide a binding SID
> which locally will be mapped to a different SID list imposed to
> each replicated flow.
>
> What is currently in the draft seems to be very counterintuitive and IMHO
> will result in operational difficulties.
>
> Thx a lot,
> R.
>
>
>
> ------------------------------
> Notice: This e-mail together with any attachments may contain information
> of Ribbon Communications Inc. that is confidential and/or proprietary for
> the sole use of the intended recipient. Any review, disclosure, reliance or
> distribution by others or forwarding without express permission is strictly
> prohibited. If you are not the intended recipient, please notify the sender
> immediately and then delete all copies, including any attachments.
> ------------------------------
>

--000000000000981eaa05a9685e85
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr">Hi Alexander,<div><br></div><div>Do we really know how to =
build MDTs as source routed chains ?=C2=A0</div><div><br></div><div>If that=
 is the goal here IMHO it deserves a whole separate document ....=C2=A0</di=
v><div><br></div><div>In general when we replicate we take a packet and cop=
y it to interfaces A, B ... Z. That&#39;s a local rule I presume executed f=
or flows containing R-SID-n. But we just can&#39;t send the packet with ide=
ntical list of SIDs from that point on any outgoing interface as results wi=
ll be rather poor.=C2=A0</div><div><br></div><div>We need custom list for e=
ach outbound interface and that is something I am not seeing in the draft. =
Till this is explained I would keep thinking that building MDTs should be m=
ore of as control plane task.=C2=A0</div><div><br></div><div>Thx.<br>R.</di=
v></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr=
">On Wed, Jul 1, 2020 at 9:42 PM Alexander Vainshtein &lt;<a href=3D"mailto=
:Alexander.Vainshtein@rbbn.com">Alexander.Vainshtein@rbbn.com</a>&gt; wrote=
:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.=
8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">

<div>
<div style=3D"color:rgb(33,33,33);background-color:rgb(255,255,255);text-al=
ign:left" dir=3D"auto">
Robert, Rishabh and all,</div>
<div style=3D"color:rgb(33,33,33);background-color:rgb(255,255,255);text-al=
ign:left" dir=3D"auto">
I concur with Robert but would like to add that Option A woild effectively =
eliminate the possibility of building MDTs with more than one level using R=
eplication Segments.</div>
<div style=3D"color:rgb(33,33,33);background-color:rgb(255,255,255);text-al=
ign:left" dir=3D"auto">
<br>
</div>
<div style=3D"color:rgb(33,33,33);background-color:rgb(255,255,255);text-al=
ign:left" dir=3D"auto">
Which is probably not the intent of the draft.</div>
<div style=3D"color:rgb(33,33,33);background-color:rgb(255,255,255);text-al=
ign:left" dir=3D"auto">
<br>
</div>
<div style=3D"color:rgb(33,33,33);background-color:rgb(255,255,255);text-al=
ign:left" dir=3D"auto">
My 2c.</div>
<div id=3D"gmail-m_-2424920405468550443ms-outlook-mobile-signature">
<div><br>
</div>
Get <a href=3D"https://aka.ms/ghei36" target=3D"_blank">Outlook for Android=
</a></div>
<div id=3D"gmail-m_-2424920405468550443id-6a44adee-257e-43dc-90a1-bf3f43397=
1e4">
<div style=3D"font-family:sans-serif;font-size:13.2pt;color:rgb(0,0,0)"><br=
>
</div>
<hr style=3D"display:inline-block;width:98%">
<div id=3D"gmail-m_-2424920405468550443divRplyFwdMsg"><strong>From:</strong=
> spring &lt;<a href=3D"mailto:spring-bounces@ietf.org" target=3D"_blank">s=
pring-bounces@ietf.org</a>&gt; on behalf of Robert Raszuk &lt;<a href=3D"ma=
ilto:robert@raszuk.net" target=3D"_blank">robert@raszuk.net</a>&gt;<br>
<strong>Sent:</strong> Wednesday, July 1, 2020, 22:27<br>
<strong>To:</strong> Rishabh Parekh<br>
<strong>Cc:</strong> Joel Halpern Direct; <a href=3D"mailto:spring@ietf.org=
" target=3D"_blank">spring@ietf.org</a><br>
<strong>Subject:</strong> Re: [spring] Understanding the replication draft<=
br>
</div>
<br>

<div dir=3D"ltr">
<div dir=3D"ltr">Hi Rishabh,
<div><br>
</div>
<div>=C2=A0&gt; Of course, care must be<br>
&gt; taken to avoid the &quot;explosion&quot; as you describe it. G-SID-2 h=
as to map<br>
&gt; to a unique node; for example, it may be an Anycast-SID that takes<br>
&gt; packet to distinct nodes from each of the downstream node, or the<br>
&gt; downstream nodes can be border nodes connecting to other segment<br>
&gt; routing domains where G-SID-2 resolves to distinct nodes in each<br>
&gt; domain.</div>
<div><br>
</div>
<div>I think you are stretching=C2=A0it too thin.=C2=A0</div>
<div><br>
</div>
<div>See even if G-SID-2 is anycast SID you have zero assurance that physic=
al nodes packets will land on would be at all diverse.=C2=A0</div>
<div><br>
</div>
<div>Likewise crossing domains yet providing identical global SID now to be=
 a different node in each such domain to me is not a realistic example.=C2=
=A0</div>
<div><br>
</div>
<div>I think we have two options:=C2=A0</div>
<div><br>
</div>
<div>A) Firmly state that replication SID MUST be the last one on the stack=
=C2=A0</div>
<div><br>
</div>
<div>B) Instead of real SID after the replication SID provide a binding SID=
 which locally will be mapped to a different SID list imposed to each=C2=A0=
replicated flow.=C2=A0</div>
<div><br>
</div>
<div>What is currently in the draft seems to be very counterintuitive and I=
MHO will result in operational difficulties.=C2=A0</div>
<div><br>
</div>
<div>Thx a lot,</div>
<div>R.</div>
</div>
</div>
<br>
</div>


<br><br><span style=3D"font-family:Arial;font-size:8pt"> <hr> Notice: This =
e-mail together with any attachments may contain information of Ribbon Comm=
unications Inc. that is confidential and/or proprietary for the sole use of=
 the intended recipient.  Any review, disclosure, reliance or distribution =
by others or forwarding without express permission is strictly prohibited. =
 If you are not the intended recipient, please notify the sender immediatel=
y and then delete all copies, including any attachments.<hr> </span></div>
</blockquote></div>

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From: Rishabh Parekh <rishabhp@gmail.com>
Date: Wed, 1 Jul 2020 15:55:29 -0700
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To: Robert Raszuk <robert@raszuk.net>
Cc: Alexander Vainshtein <Alexander.Vainshtein@rbbn.com>,  Joel Halpern Direct <jmh.direct@joelhalpern.com>, "spring@ietf.org" <spring@ietf.org>
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Subject: Re: [spring] Understanding the replication draft
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Sasha,
I agree with Robert. Building MDTs for services is covered in a
separate draft in BESS:
https://datatracker.ietf.org/doc/draft-parekh-bess-mvpn-evpn-sr-p2mp/

-Rishabh

On Wed, Jul 1, 2020 at 2:56 PM Robert Raszuk <robert@raszuk.net> wrote:
>
> Hi Alexander,
>
> Do we really know how to build MDTs as source routed chains ?
>
> If that is the goal here IMHO it deserves a whole separate document ....
>
> In general when we replicate we take a packet and copy it to interfaces A=
, B ... Z. That's a local rule I presume executed for flows containing R-SI=
D-n. But we just can't send the packet with identical list of SIDs from tha=
t point on any outgoing interface as results will be rather poor.
>
> We need custom list for each outbound interface and that is something I a=
m not seeing in the draft. Till this is explained I would keep thinking tha=
t building MDTs should be more of as control plane task.
>
> Thx.
> R.
>
> On Wed, Jul 1, 2020 at 9:42 PM Alexander Vainshtein <Alexander.Vainshtein=
@rbbn.com> wrote:
>>
>> Robert, Rishabh and all,
>> I concur with Robert but would like to add that Option A woild effective=
ly eliminate the possibility of building MDTs with more than one level usin=
g Replication Segments.
>>
>> Which is probably not the intent of the draft.
>>
>> My 2c.
>>
>> Get Outlook for Android
>>
>> ________________________________
>> From: spring <spring-bounces@ietf.org> on behalf of Robert Raszuk <rober=
t@raszuk.net>
>> Sent: Wednesday, July 1, 2020, 22:27
>> To: Rishabh Parekh
>> Cc: Joel Halpern Direct; spring@ietf.org
>> Subject: Re: [spring] Understanding the replication draft
>>
>> Hi Rishabh,
>>
>>  > Of course, care must be
>> > taken to avoid the "explosion" as you describe it. G-SID-2 has to map
>> > to a unique node; for example, it may be an Anycast-SID that takes
>> > packet to distinct nodes from each of the downstream node, or the
>> > downstream nodes can be border nodes connecting to other segment
>> > routing domains where G-SID-2 resolves to distinct nodes in each
>> > domain.
>>
>> I think you are stretching it too thin.
>>
>> See even if G-SID-2 is anycast SID you have zero assurance that physical=
 nodes packets will land on would be at all diverse.
>>
>> Likewise crossing domains yet providing identical global SID now to be a=
 different node in each such domain to me is not a realistic example.
>>
>> I think we have two options:
>>
>> A) Firmly state that replication SID MUST be the last one on the stack
>>
>> B) Instead of real SID after the replication SID provide a binding SID w=
hich locally will be mapped to a different SID list imposed to each replica=
ted flow.
>>
>> What is currently in the draft seems to be very counterintuitive and IMH=
O will result in operational difficulties.
>>
>> Thx a lot,
>> R.
>>
>>
>>
>> ________________________________
>> Notice: This e-mail together with any attachments may contain informatio=
n of Ribbon Communications Inc. that is confidential and/or proprietary for=
 the sole use of the intended recipient. Any review, disclosure, reliance o=
r distribution by others or forwarding without express permission is strict=
ly prohibited. If you are not the intended recipient, please notify the sen=
der immediately and then delete all copies, including any attachments.
>> ________________________________


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To: Rishabh Parekh <rishabhp@gmail.com>, Robert Raszuk <robert@raszuk.net>
Cc: Alexander Vainshtein <Alexander.Vainshtein@rbbn.com>, "spring@ietf.org" <spring@ietf.org>, Joel Halpern Direct <jmh.direct@joelhalpern.com>
References: <94415742-fc4e-1774-bf96-01eac3672bfb@joelhalpern.com> <CABjMoXYCsXb-iP55PsNWHBG187Lm7-2PXfgD3qRn_aD6ppDuMw@mail.gmail.com> <b3aaaa47-af61-6fc0-1086-bfd59efea061@joelhalpern.com> <CABjMoXY5S1Bx3rQM-0eyJfzh9iOgAZoGshs1wFqebnkVZ++G0w@mail.gmail.com> <CAOj+MMFsjRCgbY1V5idoKmqKR7W5gwM7ui7cp6W12GQm0XEHyQ@mail.gmail.com> <AM0PR03MB4499F08DA8589EAEA4A048C29D6C0@AM0PR03MB4499.eurprd03.prod.outlook.com> <CAOj+MMFYcvAUP_Nh_K=6gBMVAQst_+mc0rADn7_j-yO4kyVC2Q@mail.gmail.com> <CABjMoXb2=dO+NgGLSCO8jaOvzroo5gTsBejNPvjPqYHvZKJcDA@mail.gmail.com>
From: "Joel M. Halpern" <jmh@joelhalpern.com>
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Subject: Re: [spring] Understanding the replication draft
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What I think this draft could use is a description of what the legal and 
illegal ways of constructing the tools are, so that other drafts can 
then properly use the tools.

Yours,
Joel

On 7/1/2020 6:55 PM, Rishabh Parekh wrote:
> Sasha,
> I agree with Robert. Building MDTs for services is covered in a
> separate draft in BESS:
> https://datatracker.ietf.org/doc/draft-parekh-bess-mvpn-evpn-sr-p2mp/
> 
> -Rishabh
> 
> On Wed, Jul 1, 2020 at 2:56 PM Robert Raszuk <robert@raszuk.net> wrote:
>>
>> Hi Alexander,
>>
>> Do we really know how to build MDTs as source routed chains ?
>>
>> If that is the goal here IMHO it deserves a whole separate document ....
>>
>> In general when we replicate we take a packet and copy it to interfaces A, B ... Z. That's a local rule I presume executed for flows containing R-SID-n. But we just can't send the packet with identical list of SIDs from that point on any outgoing interface as results will be rather poor.
>>
>> We need custom list for each outbound interface and that is something I am not seeing in the draft. Till this is explained I would keep thinking that building MDTs should be more of as control plane task.
>>
>> Thx.
>> R.
>>
>> On Wed, Jul 1, 2020 at 9:42 PM Alexander Vainshtein <Alexander.Vainshtein@rbbn.com> wrote:
>>>
>>> Robert, Rishabh and all,
>>> I concur with Robert but would like to add that Option A woild effectively eliminate the possibility of building MDTs with more than one level using Replication Segments.
>>>
>>> Which is probably not the intent of the draft.
>>>
>>> My 2c.
>>>
>>> Get Outlook for Android
>>>
>>> ________________________________
>>> From: spring <spring-bounces@ietf.org> on behalf of Robert Raszuk <robert@raszuk.net>
>>> Sent: Wednesday, July 1, 2020, 22:27
>>> To: Rishabh Parekh
>>> Cc: Joel Halpern Direct; spring@ietf.org
>>> Subject: Re: [spring] Understanding the replication draft
>>>
>>> Hi Rishabh,
>>>
>>>   > Of course, care must be
>>>> taken to avoid the "explosion" as you describe it. G-SID-2 has to map
>>>> to a unique node; for example, it may be an Anycast-SID that takes
>>>> packet to distinct nodes from each of the downstream node, or the
>>>> downstream nodes can be border nodes connecting to other segment
>>>> routing domains where G-SID-2 resolves to distinct nodes in each
>>>> domain.
>>>
>>> I think you are stretching it too thin.
>>>
>>> See even if G-SID-2 is anycast SID you have zero assurance that physical nodes packets will land on would be at all diverse.
>>>
>>> Likewise crossing domains yet providing identical global SID now to be a different node in each such domain to me is not a realistic example.
>>>
>>> I think we have two options:
>>>
>>> A) Firmly state that replication SID MUST be the last one on the stack
>>>
>>> B) Instead of real SID after the replication SID provide a binding SID which locally will be mapped to a different SID list imposed to each replicated flow.
>>>
>>> What is currently in the draft seems to be very counterintuitive and IMHO will result in operational difficulties.
>>>
>>> Thx a lot,
>>> R.
>>>
>>>
>>>
>>> ________________________________
>>> Notice: This e-mail together with any attachments may contain information of Ribbon Communications Inc. that is confidential and/or proprietary for the sole use of the intended recipient. Any review, disclosure, reliance or distribution by others or forwarding without express permission is strictly prohibited. If you are not the intended recipient, please notify the sender immediately and then delete all copies, including any attachments.
>>> ________________________________
> 
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
> 


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Date: Wed, 1 Jul 2020 17:49:48 -0700
From: Jeff Tantsura <jefftant.ietf@gmail.com>
To: Robert Raszuk <robert@raszuk.net>, Rishabh Parekh <rishabhp@gmail.com>
Cc: "=?utf-8?Q?spring=40ietf.org?=" <spring@ietf.org>
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Subject: Re: [spring] Understanding the replication draft
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Rishabh,

Transport SID with a service on top can=E2=80=99t be a BoS label, there=E2=
=80=99s s service label below, since a service is associated with a parti=
cular node, there would be at least a N-SID associated with the service n=
ode.
It seems like B-SID behavior is the correct one, when R-SID is looked up =
and popped, it would yield: replication=C2=A0=C2=A0(as programmed by a co=
ntroller, since there=E2=80=99s no state) + new label stack associated wi=
th the new, post replication/branching path that is imposed on top of exi=
sting label stack, so service label ( + optionally more transport labels)=
 are preserved.

Cheers,
Jeff
On Jul 1, 2020, 12:40 PM -0700, Rishabh Parekh <rishabhp=40gmail.com>, wr=
ote:
> Robert,
>
> > A) =46irmly state that replication SID MUST be the last one on the st=
ack
> > B) Instead of real SID after the replication SID provide a binding SI=
D which locally will be mapped to a different SID list imposed to each re=
plicated flow.
>
> We would be fine with A), but we don't want to exclude possibility of
> something like what you describe in B.
>
> -Rishabh
>
> On Wed, Jul 1, 2020 at 12:27 PM Robert Raszuk <robert=40raszuk.net> wro=
te:
> >
> > Hi Rishabh,
> >
> > > Of course, care must be
> > > taken to avoid the =22explosion=22 as you describe it. G-SID-2 has =
to map
> > > to a unique node; for example, it may be an Anycast-SID that takes
> > > packet to distinct nodes from each of the downstream node, or the
> > > downstream nodes can be border nodes connecting to other segment
> > > routing domains where G-SID-2 resolves to distinct nodes in each
> > > domain.
> >
> > I think you are stretching it too thin.
> >
> > See even if G-SID-2 is anycast SID you have zero assurance that physi=
cal nodes packets will land on would be at all diverse.
> >
> > Likewise crossing domains yet providing identical global SID now to b=
e a different node in each such domain to me is not a realistic example.
> >
> > I think we have two options:
> >
> > A) =46irmly state that replication SID MUST be the last one on the st=
ack
> >
> > B) Instead of real SID after the replication SID provide a binding SI=
D which locally will be mapped to a different SID list imposed to each re=
plicated flow.
> >
> > What is currently in the draft seems to be very counterintuitive and =
IMHO will result in operational difficulties.
> >
> > Thx a lot,
> > R.
>
> =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F
> spring mailing list
> spring=40ietf.org
> https://www.ietf.org/mailman/listinfo/spring

--5efd2f3d_520eedd1_11d67
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<html xmlns=3D=22http://www.w3.org/1999/xhtml=22>
<head>
<title></title>
</head>
<body>
<div name=3D=22messageBodySection=22>
<div dir=3D=22auto=22>Rishabh,<br />
<br />
Transport SID with a service on top can=E2=80=99t be a BoS label, there=E2=
=80=99s s service label below, since a service is associated with a parti=
cular node, there would be at least a N-SID associated with the service n=
ode.<br />
It seems like B-SID behavior is the correct one, when R-SID is looked up =
and popped, it would yield: replication&=23160;&=23160;(as programmed by =
a controller, since there=E2=80=99s no state) + new label stack associate=
d with the new, post replication/branching path that is imposed on top of=
 existing label stack, so service label ( + optionally more transport lab=
els) are preserved.&=23160;&=23160;</div>
</div>
<div name=3D=22messageSignatureSection=22><br />
<div class=3D=22match=46ont=22>Cheers,
<div>Jeff</div>
</div>
</div>
<div name=3D=22messageReplySection=22>On Jul 1, 2020, 12:40 PM -0700, Ris=
habh Parekh &lt;rishabhp=40gmail.com&gt;, wrote:<br />
<blockquote type=3D=22cite=22 style=3D=22border-left-color: grey; border-=
left-width: thin; border-left-style: solid; margin: 5px 5px;padding-left:=
 10px;=22>Robert,<br />
<br />
<blockquote type=3D=22cite=22>A) =46irmly state that replication SID MUST=
 be the last one on the stack<br />
B) Instead of real SID after the replication SID provide a binding SID wh=
ich locally will be mapped to a different SID list imposed to each replic=
ated flow.<br /></blockquote>
<br />
We would be fine with A), but we don't want to exclude possibility of<br =
/>
something like what you describe in B.<br />
<br />
-Rishabh<br />
<br />
On Wed, Jul 1, 2020 at 12:27 PM Robert Raszuk &lt;robert=40raszuk.net&gt;=
 wrote:<br />
<blockquote type=3D=22cite=22><br />
Hi Rishabh,<br />
<br />
<blockquote type=3D=22cite=22>Of course, care must be<br />
taken to avoid the =22explosion=22 as you describe it. G-SID-2 has to map=
<br />
to a unique node; for example, it may be an Anycast-SID that takes<br />
packet to distinct nodes from each of the downstream node, or the<br />
downstream nodes can be border nodes connecting to other segment<br />
routing domains where G-SID-2 resolves to distinct nodes in each<br />
domain.<br /></blockquote>
<br />
I think you are stretching it too thin.<br />
<br />
See even if G-SID-2 is anycast SID you have zero assurance that physical =
nodes packets will land on would be at all diverse.<br />
<br />
Likewise crossing domains yet providing identical global SID now to be a =
different node in each such domain to me is not a realistic example.<br /=
>
<br />
I think we have two options:<br />
<br />
A) =46irmly state that replication SID MUST be the last one on the stack<=
br />
<br />
B) Instead of real SID after the replication SID provide a binding SID wh=
ich locally will be mapped to a different SID list imposed to each replic=
ated flow.<br />
<br />
What is currently in the draft seems to be very counterintuitive and IMHO=
 will result in operational difficulties.<br />
<br />
Thx a lot,<br />
R.<br /></blockquote>
<br />
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F<br />
spring mailing list<br />
spring=40ietf.org<br />
https://www.ietf.org/mailman/listinfo/spring<br /></blockquote>
</div>
</body>
</html>

--5efd2f3d_520eedd1_11d67--


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From: Rishabh Parekh <rishabhp@gmail.com>
Date: Wed, 1 Jul 2020 23:34:45 -0700
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To: Jeff Tantsura <jefftant.ietf@gmail.com>
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Subject: Re: [spring] Understanding the replication draft
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Jeff,
Your explanation of distinct Transport SIDs and service labels (which
appear at BoS) applies to Point-to-Point services. Same model can be
applied when a Point-to-Multipoint service is realized by one
end-to-end replication segment; "Downstream Replication SID" as
specified in draft is effectively the service label at a specific
downstream node of a Replication segment with Transport SIDs imposed
on top to take replicated packet to that node.

However, when a Point-to-Multipoint service is over replication
segments stitched together to form a P2MP tree, as described in PIM WG
draft, this model no longer holds since all service egress nodes would
have to agree on one common service label. So  P2MP services
implicitly map the P2MP transport label (Replication SID at BoS in
this case) to the P2MP service. Of course, this implies one-to-one
association between a P2MP service and a P2MP transport. There are
techniques to share one P2MP transport across different P2MP services
using either upstream assigned label or a global context from
"Domain-wide Common Block"
(draft-ietf-bess-mvpn-evpn-aggregation-label). These and other gory
details are described in Section 2 of PIM WG draft and to some extent
in BESS MVPN-EVPN draft.

-Rishabh

On Wed, Jul 1, 2020 at 5:50 PM Jeff Tantsura <jefftant.ietf@gmail.com> wrot=
e:
>
> Rishabh,
>
> Transport SID with a service on top can=E2=80=99t be a BoS label, there=
=E2=80=99s s service label below, since a service is associated with a part=
icular node, there would be at least a N-SID associated with the service no=
de.
> It seems like B-SID behavior is the correct one, when R-SID is looked up =
and popped, it would yield: replication  (as programmed by a controller, si=
nce there=E2=80=99s no state) + new label stack associated with the new, po=
st replication/branching path that is imposed on top of existing label stac=
k, so service label ( + optionally more transport labels) are preserved.
>
> Cheers,
> Jeff
> On Jul 1, 2020, 12:40 PM -0700, Rishabh Parekh <rishabhp@gmail.com>, wrot=
e:
>
> Robert,
>
> A) Firmly state that replication SID MUST be the last one on the stack
> B) Instead of real SID after the replication SID provide a binding SID wh=
ich locally will be mapped to a different SID list imposed to each replicat=
ed flow.
>
>
> We would be fine with A), but we don't want to exclude possibility of
> something like what you describe in B.
>
> -Rishabh
>
> On Wed, Jul 1, 2020 at 12:27 PM Robert Raszuk <robert@raszuk.net> wrote:
>
>
> Hi Rishabh,
>
> Of course, care must be
> taken to avoid the "explosion" as you describe it. G-SID-2 has to map
> to a unique node; for example, it may be an Anycast-SID that takes
> packet to distinct nodes from each of the downstream node, or the
> downstream nodes can be border nodes connecting to other segment
> routing domains where G-SID-2 resolves to distinct nodes in each
> domain.
>
>
> I think you are stretching it too thin.
>
> See even if G-SID-2 is anycast SID you have zero assurance that physical =
nodes packets will land on would be at all diverse.
>
> Likewise crossing domains yet providing identical global SID now to be a =
different node in each such domain to me is not a realistic example.
>
> I think we have two options:
>
> A) Firmly state that replication SID MUST be the last one on the stack
>
> B) Instead of real SID after the replication SID provide a binding SID wh=
ich locally will be mapped to a different SID list imposed to each replicat=
ed flow.
>
> What is currently in the draft seems to be very counterintuitive and IMHO=
 will result in operational difficulties.
>
> Thx a lot,
> R.
>
>
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring


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From: Lizhenbin <lizhenbin@huawei.com>
To: Andrew Alston <Andrew.Alston@liquidtelecom.com>, "spring@ietf.org" <spring@ietf.org>
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=3D"0">
<div style=3D"direction: ltr;font-family: Tahoma;color: #000000;font-size: =
10pt;">
<p>Hi Andrew,</p>
<p>Thanks for your paying attention to the website. Please refer to my clar=
ification.</p>
<p>&nbsp;</p>
<p>a. SRv6 is the technology based on IPv6. In the past 20&#43; years IPv6 =
has being deployed. One of the most important drives is the address space. =
The development of 5G and cloud proposes the new chances for the developmen=
t and deployment of IPv6. Depending
 on the native IP reacheability and providing rich attributes based on the =
IPv6 extension headers, IPv6 can provide flexible connectivity to satisfy t=
he requirements of 5G and cloud. SRv6 is the typical representative solutio=
ns. This makes this round of IPv6-based
 innovations and deployments shows the new characteristics of the times to =
some extent. Then IPv6&#43; concept is proposed.&nbsp; It means the solutio=
ns is based on IPv6 and used for the scenarios of 5G and cloud.
</p>
<p><br>
b. IPv6&#43;&nbsp; has nothing with the New IP. It is apparent that the sol=
utions proposed in the IPv6&#43; are based on the IPv6 and all the standard=
ization work is being done in IETF and has nothing with ITU-T.
</p>
<p>&nbsp;</p>
<p>I am not sure if it is appropriate to discuss this work in the mailing l=
ist of SPRING WG.&nbsp; More questions and comments can be sent to
<a href=3D"mailto:ipv6plus@outlook.com">ipv6plus@outlook.com</a>. </p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>Best Regards,</p>
<p>Robin</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<div style=3D"FONT-SIZE: 16px; FONT-FAMILY: Times New Roman; COLOR: #000000=
">
<hr tabindex=3D"-1">
<div id=3D"divRpF977530" style=3D"DIRECTION: ltr"><font color=3D"#000000" s=
ize=3D"2" face=3D"Tahoma"><b>=B7=A2=BC=FE=C8=CB:</b> spring [spring-bounces=
@ietf.org] =B4=FA=B1=ED Andrew Alston [Andrew.Alston@liquidtelecom.com]<br>
<b>=B7=A2=CB=CD=CA=B1=BC=E4:</b> 2020=C4=EA7=D4=C24=C8=D5 1:31<br>
<b>=CA=D5=BC=FE=C8=CB:</b> spring@ietf.org<br>
<b>=D6=F7=CC=E2:</b> [spring] IPv6&#43;??<br>
</font><br>
</div>
<div></div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Hi All,</span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"></span>&nbsp;</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">I came across this website: </s=
pan><a href=3D"https://www.ipv6plus.net/" rel=3D"noopener noreferrer" targe=
t=3D"_blank">https://www.ipv6plus.net/</a></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"></span>&nbsp;</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Now, I wish to clarify a few th=
ings.</span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"></span>&nbsp;</p>
<div class=3D"WordSection1">
<ol style=3D"MARGIN-TOP: 0cm" type=3D"a">
<li class=3D"MsoListParagraph" style=3D"MARGIN-LEFT: 0cm"><span lang=3D"EN-=
US">This website seems to imply =A8C strong =A8C that Srv6 is not infact IP=
v6 =A8C but rather IPv6&#43; - is this the position of the member of this w=
orking group or is this simply someones bizarre idea?</span>
</li></ol>
</div>
<p class=3D"MsoListParagraph" style=3D"MARGIN-LEFT: 0cm">[Robin</p>
<ol style=3D"MARGIN-TOP: 0cm" type=3D"a">
<li class=3D"MsoListParagraph" style=3D"MARGIN-LEFT: 0cm"><span lang=3D"EN-=
US">This site seems heavily related to the new ip stuff that was presented =
to the ITU =A8C does anyone here know if there is any actual relation betwe=
en this and that crowd?</span></li></ol>
<p class=3D"MsoNormal"><span lang=3D"EN-US"></span>&nbsp;</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Thanks</span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"></span>&nbsp;</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Andrew</span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"></span>&nbsp;</p>
</div>
</div>
</div>
</body>
</html>

--_000_5A5B4DE12C0DAC44AF501CD9A2B01A8D937AB113dggemm512mbschi_--


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From: Mark Smith <markzzzsmith@gmail.com>
Date: Sat, 4 Jul 2020 20:39:43 +1000
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Where are the IPv6+ Internet Drafts?


On Sat, 4 Jul 2020, 18:08 Lizhenbin, <lizhenbin@huawei.com> wrote:

> Hi Andrew,
>
> Thanks for your paying attention to the website. Please refer to my
> clarification.
>
>
>
> a. SRv6 is the technology based on IPv6. In the past 20+ years IPv6 has
> being deployed. One of the most important drives is the address space. Th=
e
> development of 5G and cloud proposes the new chances for the development
> and deployment of IPv6. Depending on the native IP reacheability and
> providing rich attributes based on the IPv6 extension headers, IPv6 can
> provide flexible connectivity to satisfy the requirements of 5G and cloud=
.
> SRv6 is the typical representative solutions. This makes this round of
> IPv6-based innovations and deployments shows the new characteristics of t=
he
> times to some extent. Then IPv6+ concept is proposed.  It means the
> solutions is based on IPv6 and used for the scenarios of 5G and cloud.
>
>
> b. IPv6+  has nothing with the New IP. It is apparent that the solutions
> proposed in the IPv6+ are based on the IPv6 and all the standardization
> work is being done in IETF and has nothing with ITU-T.
>
>
>
> I am not sure if it is appropriate to discuss this work in the mailing
> list of SPRING WG.  More questions and comments can be sent to
> ipv6plus@outlook.com.
>
>
>
>
>
> Best Regards,
>
> Robin
>
>
>
>
>
>
> ------------------------------
> *=E5=8F=91=E4=BB=B6=E4=BA=BA:* spring [spring-bounces@ietf.org] =E4=BB=A3=
=E8=A1=A8 Andrew Alston [
> Andrew.Alston@liquidtelecom.com]
> *=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4:* 2020=E5=B9=B47=E6=9C=884=E6=97=A5=
 1:31
> *=E6=94=B6=E4=BB=B6=E4=BA=BA:* spring@ietf.org
> *=E4=B8=BB=E9=A2=98:* [spring] IPv6+??
>
> Hi All,
>
>
>
> I came across this website: https://www.ipv6plus.net/
>
>
>
> Now, I wish to clarify a few things.
>
>
>
>    1. This website seems to imply =E2=80=93 strong =E2=80=93 that Srv6 is=
 not infact IPv6
>    =E2=80=93 but rather IPv6+ - is this the position of the member of thi=
s working
>    group or is this simply someones bizarre idea?
>
> [Robin
>
>    1. This site seems heavily related to the new ip stuff that was
>    presented to the ITU =E2=80=93 does anyone here know if there is any a=
ctual
>    relation between this and that crowd?
>
>
>
> Thanks
>
>
>
> Andrew
>
>
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
>

--00000000000012cda805a99b437b
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Content-Transfer-Encoding: quoted-printable

<div dir=3D"auto">Where are the IPv6+ Internet Drafts?<div dir=3D"auto"><br=
></div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail=
_attr">On Sat, 4 Jul 2020, 18:08 Lizhenbin, &lt;<a href=3D"mailto:lizhenbin=
@huawei.com">lizhenbin@huawei.com</a>&gt; wrote:<br></div><blockquote class=
=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padd=
ing-left:1ex">




<div lang=3D"en-KE" vlink=3D"#954f72" link=3D"#0563c1">
<div style=3D"direction:ltr;font-family:Tahoma;color:#000000;font-size:10pt=
">
<p>Hi Andrew,</p>
<p>Thanks for your paying attention to the website. Please refer to my clar=
ification.</p>
<p>=C2=A0</p>
<p>a. SRv6 is the technology based on IPv6. In the past 20+ years IPv6 has =
being deployed. One of the most important drives is the address space. The =
development of 5G and cloud proposes the new chances for the development an=
d deployment of IPv6. Depending
 on the native IP reacheability and providing rich attributes based on the =
IPv6 extension headers, IPv6 can provide flexible connectivity to satisfy t=
he requirements of 5G and cloud. SRv6 is the typical representative solutio=
ns. This makes this round of IPv6-based
 innovations and deployments shows the new characteristics of the times to =
some extent. Then IPv6+ concept is proposed.=C2=A0 It means the solutions i=
s based on IPv6 and used for the scenarios of 5G and cloud.
</p>
<p><br>
b. IPv6+=C2=A0 has nothing with the New IP. It is apparent that the solutio=
ns proposed in the IPv6+ are based on the IPv6 and all the standardization =
work is being done in IETF and has nothing with ITU-T.
</p>
<p>=C2=A0</p>
<p>I am not sure if it is appropriate to discuss this work in the mailing l=
ist of SPRING WG.=C2=A0 More questions and comments can be sent to
<a href=3D"mailto:ipv6plus@outlook.com" target=3D"_blank" rel=3D"noreferrer=
">ipv6plus@outlook.com</a>. </p>
<p>=C2=A0</p>
<p>=C2=A0</p>
<p>Best Regards,</p>
<p>Robin</p>
<p>=C2=A0</p>
<p>=C2=A0</p>
<p>=C2=A0</p>
<div style=3D"FONT-SIZE:16px;FONT-FAMILY:Times New Roman;COLOR:#000000">
<hr>
<div id=3D"m_5082741418290941997divRpF977530" style=3D"DIRECTION:ltr"><font=
 color=3D"#000000" size=3D"2" face=3D"Tahoma"><b>=E5=8F=91=E4=BB=B6=E4=BA=
=BA:</b> spring [<a href=3D"mailto:spring-bounces@ietf.org" target=3D"_blan=
k" rel=3D"noreferrer">spring-bounces@ietf.org</a>] =E4=BB=A3=E8=A1=A8 Andre=
w Alston [<a href=3D"mailto:Andrew.Alston@liquidtelecom.com" target=3D"_bla=
nk" rel=3D"noreferrer">Andrew.Alston@liquidtelecom.com</a>]<br>
<b>=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4:</b> 2020=E5=B9=B47=E6=9C=884=E6=97=
=A5 1:31<br>
<b>=E6=94=B6=E4=BB=B6=E4=BA=BA:</b> <a href=3D"mailto:spring@ietf.org" targ=
et=3D"_blank" rel=3D"noreferrer">spring@ietf.org</a><br>
<b>=E4=B8=BB=E9=A2=98:</b> [spring] IPv6+??<br>
</font><br>
</div>
<div></div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Hi All,</span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"></span>=C2=A0</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">I came across this website: </s=
pan><a href=3D"https://www.ipv6plus.net/" rel=3D"noopener noreferrer norefe=
rrer" target=3D"_blank">https://www.ipv6plus.net/</a></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"></span>=C2=A0</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Now, I wish to clarify a few th=
ings.</span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"></span>=C2=A0</p>
<div>
<ol style=3D"MARGIN-TOP:0cm" type=3D"a">
<li style=3D"MARGIN-LEFT:0cm"><span lang=3D"EN-US">This website seems to im=
ply =E2=80=93 strong =E2=80=93 that Srv6 is not infact IPv6 =E2=80=93 but r=
ather IPv6+ - is this the position of the member of this working group or i=
s this simply someones bizarre idea?</span>
</li></ol>
</div>
<p style=3D"MARGIN-LEFT:0cm">[Robin</p>
<ol style=3D"MARGIN-TOP:0cm" type=3D"a">
<li style=3D"MARGIN-LEFT:0cm"><span lang=3D"EN-US">This site seems heavily =
related to the new ip stuff that was presented to the ITU =E2=80=93 does an=
yone here know if there is any actual relation between this and that crowd?=
</span></li></ol>
<p class=3D"MsoNormal"><span lang=3D"EN-US"></span>=C2=A0</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Thanks</span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"></span>=C2=A0</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Andrew</span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"></span>=C2=A0</p>
</div>
</div>
</div>
</div>

_______________________________________________<br>
spring mailing list<br>
<a href=3D"mailto:spring@ietf.org" target=3D"_blank" rel=3D"noreferrer">spr=
ing@ietf.org</a><br>
<a href=3D"https://www.ietf.org/mailman/listinfo/spring" rel=3D"noreferrer =
noreferrer" target=3D"_blank">https://www.ietf.org/mailman/listinfo/spring<=
/a><br>
</blockquote></div>

--00000000000012cda805a99b437b--


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--_000_5A5B4DE12C0DAC44AF501CD9A2B01A8D937AB421dggemm512mbschi_
Content-Type: text/html; charset="gb2312"
Content-Transfer-Encoding: quoted-printable

<html dir=3D"ltr">
<head>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dgb2312">
<style id=3D"owaParaStyle">P {
	MARGIN-BOTTOM: 0px; MARGIN-TOP: 0px
}
</style>
</head>
<body fPStyle=3D"1" ocsi=3D"0">
<div style=3D"direction: ltr;font-family: Tahoma;color: #000000;font-size: =
10pt;">
<p>Hi Mark,</p>
<p>I explained that there are group solutions for IPv6&#43; instead of that=
 IPv6&#43; is a single technology.
</p>
<p>There are the internet drafts for these solutions which are also propose=
d in the IPv6&#43; website.
</p>
<p>You can learn more through visiting the website. </p>
<p>&nbsp;</p>
<p>It&nbsp;is&nbsp;also always complained that the IETF work&nbsp;on a spec=
ific solution is distributed in multiple
</p>
<p>working groups and it is hard to understand the whole picture. &nbsp;I h=
ave ever proposed the following
</p>
<p>draft and wish it could be helpful to understand the possible work distr=
ibuted in multiple IETF areas.</p>
<p><a href=3D"https://tools.ietf.org/html/draft-li-cross-ietf-area-work-00"=
>https://tools.ietf.org/html/draft-li-cross-ietf-area-work-00</a></p>
<p>&nbsp;</p>
<p>You can see that the work in IPv6&#43; is another try to cope with the i=
ssue. </p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>Best Regards,</p>
<p>Robin</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<div style=3D"FONT-SIZE: 16px; FONT-FAMILY: Times New Roman; COLOR: #000000=
">
<hr tabindex=3D"-1">
<div id=3D"divRpF726191" style=3D"DIRECTION: ltr"><font color=3D"#000000" s=
ize=3D"2" face=3D"Tahoma"><b>=B7=A2=BC=FE=C8=CB:</b> Mark Smith [markzzzsmi=
th@gmail.com]<br>
<b>=B7=A2=CB=CD=CA=B1=BC=E4:</b> 2020=C4=EA7=D4=C24=C8=D5 18:39<br>
<b>=CA=D5=BC=FE=C8=CB:</b> Lizhenbin<br>
<b>=B3=AD=CB=CD:</b> Andrew Alston; SPRING WG<br>
<b>=D6=F7=CC=E2:</b> Re: [spring] =B4=F0=B8=B4: IPv6&#43;??<br>
</font><br>
</div>
<div></div>
<div>
<div>Where are the IPv6&#43; Internet Drafts?
<div><br>
</div>
</div>
<br>
<div class=3D"gmail_quote">
<div class=3D"gmail_attr" dir=3D"ltr">On Sat, 4 Jul 2020, 18:08 Lizhenbin, =
&lt;<a href=3D"mailto:lizhenbin@huawei.com" rel=3D"noopener noreferrer" tar=
get=3D"_blank">lizhenbin@huawei.com</a>&gt; wrote:<br>
</div>
<blockquote class=3D"gmail_quote" style=3D"PADDING-LEFT: 1ex; BORDER-LEFT: =
#ccc 1px solid; MARGIN: 0px 0px 0px 0.8ex">
<div lang=3D"en-KE">
<div style=3D"FONT-SIZE: 10pt; FONT-FAMILY: Tahoma; COLOR: #000000; DIRECTI=
ON: ltr">
<p>Hi Andrew,</p>
<p>Thanks for your paying attention to the website. Please refer to my clar=
ification.</p>
<p>&nbsp;</p>
<p>a. SRv6 is the technology based on IPv6. In the past 20&#43; years IPv6 =
has being deployed. One of the most important drives is the address space. =
The development of 5G and cloud proposes the new chances for the developmen=
t and deployment of IPv6. Depending
 on the native IP reacheability and providing rich attributes based on the =
IPv6 extension headers, IPv6 can provide flexible connectivity to satisfy t=
he requirements of 5G and cloud. SRv6 is the typical representative solutio=
ns. This makes this round of IPv6-based
 innovations and deployments shows the new characteristics of the times to =
some extent. Then IPv6&#43; concept is proposed.&nbsp; It means the solutio=
ns is based on IPv6 and used for the scenarios of 5G and cloud.
</p>
<p><br>
b. IPv6&#43;&nbsp; has nothing with the New IP. It is apparent that the sol=
utions proposed in the IPv6&#43; are based on the IPv6 and all the standard=
ization work is being done in IETF and has nothing with ITU-T.
</p>
<p>&nbsp;</p>
<p>I am not sure if it is appropriate to discuss this work in the mailing l=
ist of SPRING WG.&nbsp; More questions and comments can be sent to
<a href=3D"mailto:ipv6plus@outlook.com" rel=3D"noreferrer" target=3D"_blank=
">ipv6plus@outlook.com</a>.
</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>Best Regards,</p>
<p>Robin</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<div style=3D"FONT-SIZE: 16px; FONT-FAMILY: Times New Roman; COLOR: #000000=
">
<hr>
<div id=3D"m_5082741418290941997divRpF977530" style=3D"DIRECTION: ltr"><fon=
t color=3D"#000000" size=3D"2" face=3D"Tahoma"><b>=B7=A2=BC=FE=C8=CB:</b> s=
pring [<a href=3D"mailto:spring-bounces@ietf.org" rel=3D"noreferrer" target=
=3D"_blank">spring-bounces@ietf.org</a>] =B4=FA=B1=ED Andrew Alston [<a hre=
f=3D"mailto:Andrew.Alston@liquidtelecom.com" rel=3D"noreferrer" target=3D"_=
blank">Andrew.Alston@liquidtelecom.com</a>]<br>
<b>=B7=A2=CB=CD=CA=B1=BC=E4:</b> 2020=C4=EA7=D4=C24=C8=D5 1:31<br>
<b>=CA=D5=BC=FE=C8=CB:</b> <a href=3D"mailto:spring@ietf.org" rel=3D"norefe=
rrer" target=3D"_blank">spring@ietf.org</a><br>
<b>=D6=F7=CC=E2:</b> [spring] IPv6&#43;??<br>
</font><br>
</div>
<div></div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Hi All,</span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"></span>&nbsp;</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">I came across this website: </s=
pan><a href=3D"https://www.ipv6plus.net/" rel=3D"noopener noreferrer norefe=
rrer" target=3D"_blank">https://www.ipv6plus.net/</a></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"></span>&nbsp;</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Now, I wish to clarify a few th=
ings.</span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"></span>&nbsp;</p>
<div>
<ol style=3D"MARGIN-TOP: 0cm" type=3D"a">
<li style=3D"MARGIN-LEFT: 0cm"><span lang=3D"EN-US">This website seems to i=
mply =A8C strong =A8C that Srv6 is not infact IPv6 =A8C but rather IPv6&#43=
; - is this the position of the member of this working group or is this sim=
ply someones bizarre idea?</span>
</li></ol>
</div>
<p style=3D"MARGIN-LEFT: 0cm">[Robin</p>
<ol style=3D"MARGIN-TOP: 0cm" type=3D"a">
<li style=3D"MARGIN-LEFT: 0cm"><span lang=3D"EN-US">This site seems heavily=
 related to the new ip stuff that was presented to the ITU =A8C does anyone=
 here know if there is any actual relation between this and that crowd?</sp=
an></li></ol>
<p class=3D"MsoNormal"><span lang=3D"EN-US"></span>&nbsp;</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Thanks</span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"></span>&nbsp;</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Andrew</span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"></span>&nbsp;</p>
</div>
</div>
</div>
</div>
_______________________________________________<br>
spring mailing list<br>
<a href=3D"mailto:spring@ietf.org" rel=3D"noreferrer" target=3D"_blank">spr=
ing@ietf.org</a><br>
<a href=3D"https://www.ietf.org/mailman/listinfo/spring" rel=3D"noreferrer =
noreferrer" target=3D"_blank">https://www.ietf.org/mailman/listinfo/spring<=
/a><br>
</blockquote>
</div>
</div>
</div>
</div>
</body>
</html>

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From: Robert Raszuk <robert@raszuk.net>
Date: Sat, 4 Jul 2020 14:04:27 +0200
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To: Mark Smith <markzzzsmith@gmail.com>
Cc: Lizhenbin <lizhenbin@huawei.com>, SPRING WG <spring@ietf.org>,  Andrew Alston <Andrew.Alston@liquidtelecom.com>
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All,

It looks to me that "IPv6+" is just a marketing name to sell a bunch of new
IPv6 based services and has nothing to do with SPRING nor for that matter
with IETF.

As such unless anyone has copyrights on that specific ASCII string any
vendor can use it as it seems fit their marketing strategy.

Likewise others could still use other similar technology marketing or
product names "IPv6^6", "IPv6NG", "IPv6@5G" etc ...

Cheers,
R.


On Sat, Jul 4, 2020 at 12:40 PM Mark Smith <markzzzsmith@gmail.com> wrote:

> Where are the IPv6+ Internet Drafts?
>
>
> On Sat, 4 Jul 2020, 18:08 Lizhenbin, <lizhenbin@huawei.com> wrote:
>
>> Hi Andrew,
>>
>> Thanks for your paying attention to the website. Please refer to my
>> clarification.
>>
>>
>>
>> a. SRv6 is the technology based on IPv6. In the past 20+ years IPv6 has
>> being deployed. One of the most important drives is the address space. T=
he
>> development of 5G and cloud proposes the new chances for the development
>> and deployment of IPv6. Depending on the native IP reacheability and
>> providing rich attributes based on the IPv6 extension headers, IPv6 can
>> provide flexible connectivity to satisfy the requirements of 5G and clou=
d.
>> SRv6 is the typical representative solutions. This makes this round of
>> IPv6-based innovations and deployments shows the new characteristics of =
the
>> times to some extent. Then IPv6+ concept is proposed.  It means the
>> solutions is based on IPv6 and used for the scenarios of 5G and cloud.
>>
>>
>> b. IPv6+  has nothing with the New IP. It is apparent that the solutions
>> proposed in the IPv6+ are based on the IPv6 and all the standardization
>> work is being done in IETF and has nothing with ITU-T.
>>
>>
>>
>> I am not sure if it is appropriate to discuss this work in the mailing
>> list of SPRING WG.  More questions and comments can be sent to
>> ipv6plus@outlook.com.
>>
>>
>>
>>
>>
>> Best Regards,
>>
>> Robin
>>
>>
>>
>>
>>
>>
>> ------------------------------
>> *=E5=8F=91=E4=BB=B6=E4=BA=BA:* spring [spring-bounces@ietf.org] =E4=BB=
=A3=E8=A1=A8 Andrew Alston [
>> Andrew.Alston@liquidtelecom.com]
>> *=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4:* 2020=E5=B9=B47=E6=9C=884=E6=97=
=A5 1:31
>> *=E6=94=B6=E4=BB=B6=E4=BA=BA:* spring@ietf.org
>> *=E4=B8=BB=E9=A2=98:* [spring] IPv6+??
>>
>> Hi All,
>>
>>
>>
>> I came across this website: https://www.ipv6plus.net/
>>
>>
>>
>> Now, I wish to clarify a few things.
>>
>>
>>
>>    1. This website seems to imply =E2=80=93 strong =E2=80=93 that Srv6 i=
s not infact
>>    IPv6 =E2=80=93 but rather IPv6+ - is this the position of the member =
of this
>>    working group or is this simply someones bizarre idea?
>>
>> [Robin
>>
>>    1. This site seems heavily related to the new ip stuff that was
>>    presented to the ITU =E2=80=93 does anyone here know if there is any =
actual
>>    relation between this and that crowd?
>>
>>
>>
>> Thanks
>>
>>
>>
>> Andrew
>>
>>
>> _______________________________________________
>> spring mailing list
>> spring@ietf.org
>> https://www.ietf.org/mailman/listinfo/spring
>>
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
>

--0000000000000d7a4c05a99c72e3
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Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr">All,<div><br></div><div>It looks to me that &quot;IPv6+&qu=
ot; is just a marketing name to sell a bunch=C2=A0of new IPv6 based service=
s and has nothing to do with SPRING nor for that matter with IETF.=C2=A0</d=
iv><div><br></div><div>As such unless anyone has copyrights on that specifi=
c ASCII string any vendor can use it as it seems fit their marketing strate=
gy.=C2=A0</div><div><br></div><div>Likewise others could still use other si=
milar technology marketing or product names &quot;IPv6^6&quot;, &quot;IPv6N=
G&quot;, &quot;IPv6@5G&quot; etc ...=C2=A0</div><div><br></div><div>Cheers,=
</div><div>R.</div><div><br></div></div><br><div class=3D"gmail_quote"><div=
 dir=3D"ltr" class=3D"gmail_attr">On Sat, Jul 4, 2020 at 12:40 PM Mark Smit=
h &lt;<a href=3D"mailto:markzzzsmith@gmail.com">markzzzsmith@gmail.com</a>&=
gt; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0=
px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div =
dir=3D"auto">Where are the IPv6+ Internet Drafts?<div dir=3D"auto"><br></di=
v></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr=
">On Sat, 4 Jul 2020, 18:08 Lizhenbin, &lt;<a href=3D"mailto:lizhenbin@huaw=
ei.com" target=3D"_blank">lizhenbin@huawei.com</a>&gt; wrote:<br></div><blo=
ckquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left=
:1px solid rgb(204,204,204);padding-left:1ex">




<div lang=3D"en-KE">
<div style=3D"direction:ltr;font-family:Tahoma;color:rgb(0,0,0);font-size:1=
0pt">
<p>Hi Andrew,</p>
<p>Thanks for your paying attention to the website. Please refer to my clar=
ification.</p>
<p>=C2=A0</p>
<p>a. SRv6 is the technology based on IPv6. In the past 20+ years IPv6 has =
being deployed. One of the most important drives is the address space. The =
development of 5G and cloud proposes the new chances for the development an=
d deployment of IPv6. Depending
 on the native IP reacheability and providing rich attributes based on the =
IPv6 extension headers, IPv6 can provide flexible connectivity to satisfy t=
he requirements of 5G and cloud. SRv6 is the typical representative solutio=
ns. This makes this round of IPv6-based
 innovations and deployments shows the new characteristics of the times to =
some extent. Then IPv6+ concept is proposed.=C2=A0 It means the solutions i=
s based on IPv6 and used for the scenarios of 5G and cloud.
</p>
<p><br>
b. IPv6+=C2=A0 has nothing with the New IP. It is apparent that the solutio=
ns proposed in the IPv6+ are based on the IPv6 and all the standardization =
work is being done in IETF and has nothing with ITU-T.
</p>
<p>=C2=A0</p>
<p>I am not sure if it is appropriate to discuss this work in the mailing l=
ist of SPRING WG.=C2=A0 More questions and comments can be sent to
<a href=3D"mailto:ipv6plus@outlook.com" rel=3D"noreferrer" target=3D"_blank=
">ipv6plus@outlook.com</a>. </p>
<p>=C2=A0</p>
<p>=C2=A0</p>
<p>Best Regards,</p>
<p>Robin</p>
<p>=C2=A0</p>
<p>=C2=A0</p>
<p>=C2=A0</p>
<div style=3D"font-size:16px;font-family:&quot;Times New Roman&quot;;color:=
rgb(0,0,0)">
<hr>
<div id=3D"gmail-m_-585733502242607828m_5082741418290941997divRpF977530" st=
yle=3D"direction:ltr"><font color=3D"#000000" size=3D"2" face=3D"Tahoma"><b=
>=E5=8F=91=E4=BB=B6=E4=BA=BA:</b> spring [<a href=3D"mailto:spring-bounces@=
ietf.org" rel=3D"noreferrer" target=3D"_blank">spring-bounces@ietf.org</a>]=
 =E4=BB=A3=E8=A1=A8 Andrew Alston [<a href=3D"mailto:Andrew.Alston@liquidte=
lecom.com" rel=3D"noreferrer" target=3D"_blank">Andrew.Alston@liquidtelecom=
.com</a>]<br>
<b>=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4:</b> 2020=E5=B9=B47=E6=9C=884=E6=97=
=A5 1:31<br>
<b>=E6=94=B6=E4=BB=B6=E4=BA=BA:</b> <a href=3D"mailto:spring@ietf.org" rel=
=3D"noreferrer" target=3D"_blank">spring@ietf.org</a><br>
<b>=E4=B8=BB=E9=A2=98:</b> [spring] IPv6+??<br>
</font><br>
</div>
<div></div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Hi All,</span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"></span>=C2=A0</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">I came across this website: </s=
pan><a href=3D"https://www.ipv6plus.net/" rel=3D"noopener noreferrer norefe=
rrer" target=3D"_blank">https://www.ipv6plus.net/</a></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"></span>=C2=A0</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Now, I wish to clarify a few th=
ings.</span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"></span>=C2=A0</p>
<div>
<ol style=3D"margin-top:0cm" type=3D"a">
<li style=3D"margin-left:0cm"><span lang=3D"EN-US">This website seems to im=
ply =E2=80=93 strong =E2=80=93 that Srv6 is not infact IPv6 =E2=80=93 but r=
ather IPv6+ - is this the position of the member of this working group or i=
s this simply someones bizarre idea?</span>
</li></ol>
</div>
<p style=3D"margin-left:0cm">[Robin</p>
<ol style=3D"margin-top:0cm" type=3D"a">
<li style=3D"margin-left:0cm"><span lang=3D"EN-US">This site seems heavily =
related to the new ip stuff that was presented to the ITU =E2=80=93 does an=
yone here know if there is any actual relation between this and that crowd?=
</span></li></ol>
<p class=3D"MsoNormal"><span lang=3D"EN-US"></span>=C2=A0</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Thanks</span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"></span>=C2=A0</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Andrew</span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"></span>=C2=A0</p>
</div>
</div>
</div>
</div>

_______________________________________________<br>
spring mailing list<br>
<a href=3D"mailto:spring@ietf.org" rel=3D"noreferrer" target=3D"_blank">spr=
ing@ietf.org</a><br>
<a href=3D"https://www.ietf.org/mailman/listinfo/spring" rel=3D"noreferrer =
noreferrer" target=3D"_blank">https://www.ietf.org/mailman/listinfo/spring<=
/a><br>
</blockquote></div>
_______________________________________________<br>
spring mailing list<br>
<a href=3D"mailto:spring@ietf.org" target=3D"_blank">spring@ietf.org</a><br=
>
<a href=3D"https://www.ietf.org/mailman/listinfo/spring" rel=3D"noreferrer"=
 target=3D"_blank">https://www.ietf.org/mailman/listinfo/spring</a><br>
</blockquote></div>

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From: Lizhenbin <lizhenbin@huawei.com>
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<body lang=3D"EN-US" vlink=3D"purple" link=3D"blue" fPStyle=3D"1" ocsi=3D"0=
">
<div style=3D"direction: ltr;font-family: Tahoma;color: #000000;font-size: =
10pt;">
<p>Hi Jim,</p>
<p>I respect the comment from the chair. I propose the following draft (bec=
ause it is SRv6 work) for your reference on the requirements.
</p>
<p>&nbsp;</p>
<p><a href=3D"https://tools.ietf.org/html/draft-tian-spring-srv6-deployment=
-consideration-01">https://tools.ietf.org/html/draft-tian-spring-srv6-deplo=
yment-consideration-01</a></p>
<p>L</p>
<p>Later there may be more information when update. &nbsp;</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<div style=3D"FONT-SIZE: 16px; FONT-FAMILY: Times New Roman; COLOR: #000000=
">&nbsp;</div>
<div style=3D"FONT-SIZE: 16px; FONT-FAMILY: Times New Roman; COLOR: #000000=
">Best Regards,</div>
<div style=3D"FONT-SIZE: 16px; FONT-FAMILY: Times New Roman; COLOR: #000000=
">Robin</div>
<div style=3D"FONT-SIZE: 16px; FONT-FAMILY: Times New Roman; COLOR: #000000=
">&nbsp;</div>
<div style=3D"FONT-SIZE: 16px; FONT-FAMILY: Times New Roman; COLOR: #000000=
">&nbsp;</div>
<div style=3D"FONT-SIZE: 16px; FONT-FAMILY: Times New Roman; COLOR: #000000=
">&nbsp;</div>
<div style=3D"FONT-SIZE: 16px; FONT-FAMILY: Times New Roman; COLOR: #000000=
">
<hr tabindex=3D"-1">
</div>
<div id=3D"divRpF371461" style=3D"FONT-SIZE: 16px; FONT-FAMILY: Times New R=
oman; COLOR: #000000; DIRECTION: ltr">
<font color=3D"#000000" size=3D"2" face=3D"Tahoma"><b>=B7=A2=BC=FE=C8=CB:</=
b> UTTARO, JAMES [ju1738@att.com]<br>
<b>=B7=A2=CB=CD=CA=B1=BC=E4:</b> 2020=C4=EA7=D4=C24=C8=D5 18:51<br>
<b>=CA=D5=BC=FE=C8=CB:</b> Mark Smith; Lizhenbin<br>
<b>=B3=AD=CB=CD:</b> SPRING WG; Andrew Alston<br>
<b>=D6=F7=CC=E2:</b> RE: [spring] =B4=F0=B8=B4: IPv6&#43;??<br>
</font><br>
</div>
<div style=3D"FONT-SIZE: 16px; FONT-FAMILY: Times New Roman; COLOR: #000000=
"></div>
<div style=3D"FONT-SIZE: 16px; FONT-FAMILY: Times New Roman; COLOR: #000000=
">
<div class=3D"WordSection1">
<p class=3D"MsoNormal"><b><span style=3D"FONT-SIZE: 12pt; COLOR: #7030a0">W=
here are the requirements.. I mean actual ones..</span></b></p>
<p class=3D"MsoNormal"><b><span style=3D"FONT-SIZE: 12pt; COLOR: #7030a0"><=
/span></b>&nbsp;</p>
<p class=3D"MsoNormal"><b><span style=3D"FONT-SIZE: 12pt; COLOR: #7030a0">T=
hanks,</span></b></p>
<p class=3D"MsoNormal"><b><span style=3D"FONT-SIZE: 12pt; COLOR: #7030a0">&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p; Jim Uttaro</span></b></p>
<p class=3D"MsoNormal"><b><span style=3D"FONT-SIZE: 12pt; COLOR: #7030a0"><=
/span></b>&nbsp;</p>
<p class=3D"MsoNormal"><b>From:</b> spring &lt;spring-bounces@ietf.org&gt; =
<b>On Behalf Of
</b>Mark Smith<br>
<b>Sent:</b> Saturday, July 04, 2020 6:40 AM<br>
<b>To:</b> Lizhenbin &lt;lizhenbin@huawei.com&gt;<br>
<b>Cc:</b> SPRING WG &lt;spring@ietf.org&gt;; Andrew Alston &lt;Andrew.Alst=
on@liquidtelecom.com&gt;<br>
<b>Subject:</b> Re: [spring] <span style=3D"FONT-FAMILY: &quot;MS Gothic&qu=
ot;">=B4=F0=B8=B4</span>: IPv6&#43;??</p>
<p class=3D"MsoNormal">&nbsp;</p>
<div>
<p class=3D"MsoNormal">Where are the IPv6&#43; Internet Drafts?</p>
<div>
<p class=3D"MsoNormal">&nbsp;</p>
</div>
</div>
<p class=3D"MsoNormal">&nbsp;</p>
<div>
<div>
<p class=3D"MsoNormal">On Sat, 4 Jul 2020, 18:08 Lizhenbin, &lt;<a href=3D"=
mailto:lizhenbin@huawei.com" rel=3D"noopener noreferrer" target=3D"_blank">=
lizhenbin@huawei.com</a>&gt; wrote:</p>
</div>
<blockquote style=3D"BORDER-TOP: medium none; BORDER-RIGHT: medium none; BO=
RDER-BOTTOM: medium none; PADDING-BOTTOM: 0in; PADDING-TOP: 0in; PADDING-LE=
FT: 6pt; MARGIN-LEFT: 4.8pt; BORDER-LEFT: #cccccc 1pt solid; PADDING-RIGHT:=
 0in; MARGIN-RIGHT: 0in">
<div>
<div>
<p><span style=3D"FONT-SIZE: 10pt; FONT-FAMILY: &quot;Tahoma&quot;,sans-ser=
if; COLOR: black">Hi Andrew,</span></p>
<p><span style=3D"FONT-SIZE: 10pt; FONT-FAMILY: &quot;Tahoma&quot;,sans-ser=
if; COLOR: black">Thanks for your paying attention to the website. Please r=
efer to my clarification.</span></p>
<p><span style=3D"FONT-SIZE: 10pt; FONT-FAMILY: &quot;Tahoma&quot;,sans-ser=
if; COLOR: black"></span>&nbsp;</p>
<p><span style=3D"FONT-SIZE: 10pt; FONT-FAMILY: &quot;Tahoma&quot;,sans-ser=
if; COLOR: black">a. SRv6 is the technology based on IPv6. In the past 20&#=
43; years IPv6 has being deployed. One of the most important drives is the =
address space. The development of 5G and cloud proposes
 the new chances for the development and deployment of IPv6. Depending on t=
he native IP reacheability and providing rich attributes based on the IPv6 =
extension headers, IPv6 can provide flexible connectivity to satisfy the re=
quirements of 5G and cloud. SRv6
 is the typical representative solutions. This makes this round of IPv6-bas=
ed innovations and deployments shows the new characteristics of the times t=
o some extent. Then IPv6&#43; concept is proposed.&nbsp; It means the solut=
ions is based on IPv6 and used for the scenarios
 of 5G and cloud. </span></p>
<p><span style=3D"FONT-SIZE: 10pt; FONT-FAMILY: &quot;Tahoma&quot;,sans-ser=
if; COLOR: black"><br>
b. IPv6&#43;&nbsp; has nothing with the New IP. It is apparent that the sol=
utions proposed in the IPv6&#43; are based on the IPv6 and all the standard=
ization work is being done in IETF and has nothing with ITU-T.
</span></p>
<p><span style=3D"FONT-SIZE: 10pt; FONT-FAMILY: &quot;Tahoma&quot;,sans-ser=
if; COLOR: black"></span>&nbsp;</p>
<p><span style=3D"FONT-SIZE: 10pt; FONT-FAMILY: &quot;Tahoma&quot;,sans-ser=
if; COLOR: black">I am not sure if it is appropriate to discuss this work i=
n the mailing list of SPRING WG.&nbsp; More questions and comments can be s=
ent to
<a href=3D"mailto:ipv6plus@outlook.com" rel=3D"noopener noreferrer" target=
=3D"_blank">ipv6plus@outlook.com</a>.
</span></p>
<p><span style=3D"FONT-SIZE: 10pt; FONT-FAMILY: &quot;Tahoma&quot;,sans-ser=
if; COLOR: black"></span>&nbsp;</p>
<p><span style=3D"FONT-SIZE: 10pt; FONT-FAMILY: &quot;Tahoma&quot;,sans-ser=
if; COLOR: black"></span>&nbsp;</p>
<p><span style=3D"FONT-SIZE: 10pt; FONT-FAMILY: &quot;Tahoma&quot;,sans-ser=
if; COLOR: black">Best Regards,</span></p>
<p><span style=3D"FONT-SIZE: 10pt; FONT-FAMILY: &quot;Tahoma&quot;,sans-ser=
if; COLOR: black">Robin</span></p>
<p><span style=3D"FONT-SIZE: 10pt; FONT-FAMILY: &quot;Tahoma&quot;,sans-ser=
if; COLOR: black"></span>&nbsp;</p>
<p><span style=3D"FONT-SIZE: 10pt; FONT-FAMILY: &quot;Tahoma&quot;,sans-ser=
if; COLOR: black"></span>&nbsp;</p>
<p><span style=3D"FONT-SIZE: 10pt; FONT-FAMILY: &quot;Tahoma&quot;,sans-ser=
if; COLOR: black"></span>&nbsp;</p>
<div>
<div class=3D"MsoNormal" style=3D"TEXT-ALIGN: center" align=3D"center"><spa=
n style=3D"FONT-SIZE: 12pt; FONT-FAMILY: &quot;Times New Roman&quot;,serif;=
 COLOR: black">
<hr align=3D"center" size=3D"2" width=3D"100%">
</span></div>
<div id=3D"m_5082741418290941997divRpF977530">
<p class=3D"MsoNormal" style=3D"MARGIN-BOTTOM: 12pt"><b><span style=3D"FONT=
-SIZE: 10pt; FONT-FAMILY: &quot;Microsoft JhengHei&quot;,sans-serif; COLOR:=
 black">=B7=A2=BC=FE=C8=CB</span></b><b><span style=3D"FONT-SIZE: 10pt; FON=
T-FAMILY: &quot;Tahoma&quot;,sans-serif; COLOR: black">:</span></b><span st=
yle=3D"FONT-SIZE: 10pt; FONT-FAMILY: &quot;Tahoma&quot;,sans-serif; COLOR: =
black">
 spring [<a href=3D"mailto:spring-bounces@ietf.org" rel=3D"noopener norefer=
rer" target=3D"_blank">spring-bounces@ietf.org</a>]
</span><span style=3D"FONT-SIZE: 10pt; FONT-FAMILY: &quot;MS Gothic&quot;; =
COLOR: black">=B4=FA=B1=ED</span><span style=3D"FONT-SIZE: 10pt; FONT-FAMIL=
Y: &quot;Tahoma&quot;,sans-serif; COLOR: black"> Andrew Alston [<a href=3D"=
mailto:Andrew.Alston@liquidtelecom.com" rel=3D"noopener noreferrer" target=
=3D"_blank">Andrew.Alston@liquidtelecom.com</a>]<br>
</span><b><span style=3D"FONT-SIZE: 10pt; FONT-FAMILY: &quot;Microsoft Jhen=
gHei&quot;,sans-serif; COLOR: black">=B7=A2=CB=CD=CA=B1=BC=E4</span></b><b>=
<span style=3D"FONT-SIZE: 10pt; FONT-FAMILY: &quot;Tahoma&quot;,sans-serif;=
 COLOR: black">:</span></b><span style=3D"FONT-SIZE: 10pt; FONT-FAMILY: &qu=
ot;Tahoma&quot;,sans-serif; COLOR: black">
 2020</span><span style=3D"FONT-SIZE: 10pt; FONT-FAMILY: &quot;MS Gothic&qu=
ot;; COLOR: black">=C4=EA</span><span style=3D"FONT-SIZE: 10pt; FONT-FAMILY=
: &quot;Tahoma&quot;,sans-serif; COLOR: black">7</span><span style=3D"FONT-=
SIZE: 10pt; FONT-FAMILY: &quot;MS Gothic&quot;; COLOR: black">=D4=C2</span>=
<span style=3D"FONT-SIZE: 10pt; FONT-FAMILY: &quot;Tahoma&quot;,sans-serif;=
 COLOR: black">4</span><span style=3D"FONT-SIZE: 10pt; FONT-FAMILY: &quot;M=
S Gothic&quot;; COLOR: black">=C8=D5</span><span style=3D"FONT-SIZE: 10pt; =
FONT-FAMILY: &quot;Tahoma&quot;,sans-serif; COLOR: black">
 1:31<br>
</span><b><span style=3D"FONT-SIZE: 10pt; FONT-FAMILY: &quot;MS Gothic&quot=
;; COLOR: black">=CA=D5=BC=FE=C8=CB</span></b><b><span style=3D"FONT-SIZE: =
10pt; FONT-FAMILY: &quot;Tahoma&quot;,sans-serif; COLOR: black">:</span></b=
><span style=3D"FONT-SIZE: 10pt; FONT-FAMILY: &quot;Tahoma&quot;,sans-serif=
; COLOR: black">
<a href=3D"mailto:spring@ietf.org" rel=3D"noopener noreferrer" target=3D"_b=
lank">spring@ietf.org</a><br>
</span><b><span style=3D"FONT-SIZE: 10pt; FONT-FAMILY: &quot;MS Gothic&quot=
;; COLOR: black">=D6=F7</span></b><b><span style=3D"FONT-SIZE: 10pt; FONT-F=
AMILY: &quot;Microsoft JhengHei&quot;,sans-serif; COLOR: black">=CC=E2</spa=
n></b><b><span style=3D"FONT-SIZE: 10pt; FONT-FAMILY: &quot;Tahoma&quot;,sa=
ns-serif; COLOR: black">:</span></b><span style=3D"FONT-SIZE: 10pt; FONT-FA=
MILY: &quot;Tahoma&quot;,sans-serif; COLOR: black">
 [spring] IPv6&#43;??</span><span style=3D"FONT-SIZE: 12pt; FONT-FAMILY: &q=
uot;Times New Roman&quot;,serif; COLOR: black"></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span style=3D"FONT-SIZE: 12pt; FONT-FAMILY: &quot;T=
imes New Roman&quot;,serif; COLOR: black">Hi All,</span><span style=3D"FONT=
-SIZE: 12pt; FONT-FAMILY: &quot;Times New Roman&quot;,serif; COLOR: black">=
</span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-SIZE: 12pt; FONT-FAMILY: &quot;T=
imes New Roman&quot;,serif; COLOR: black"></span>&nbsp;</p>
<p class=3D"MsoNormal"><span style=3D"FONT-SIZE: 12pt; FONT-FAMILY: &quot;T=
imes New Roman&quot;,serif; COLOR: black">I came across this website:
</span><span style=3D"FONT-SIZE: 12pt; FONT-FAMILY: &quot;Times New Roman&q=
uot;,serif; COLOR: black"><a href=3D"https://urldefense.proofpoint.com/v2/u=
rl?u=3Dhttps-3A__www.ipv6plus.net_&amp;d=3DDwMFaQ&amp;c=3DLFYZ-o9_HUMeMTSQi=
cvjIg&amp;r=3Ds7ZzB4JbPv3nYuoSx5Gy8Q&amp;m=3DxY6EacJ5lx2Wdodq3HVdOJnLu47yv-=
NeOtF_pims9wo&amp;s=3DMRwEZihBF6LGmyvanssazkk5goh92USabH9rzxSuIcg&amp;e=3D"=
 rel=3D"noopener noreferrer" target=3D"_blank">https://www.ipv6plus.net/</a=
></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-SIZE: 12pt; FONT-FAMILY: &quot;T=
imes New Roman&quot;,serif; COLOR: black"></span>&nbsp;</p>
<p class=3D"MsoNormal"><span style=3D"FONT-SIZE: 12pt; FONT-FAMILY: &quot;T=
imes New Roman&quot;,serif; COLOR: black">Now, I wish to clarify a few thin=
gs.</span><span style=3D"FONT-SIZE: 12pt; FONT-FAMILY: &quot;Times New Roma=
n&quot;,serif; COLOR: black"></span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-SIZE: 12pt; FONT-FAMILY: &quot;T=
imes New Roman&quot;,serif; COLOR: black"></span>&nbsp;</p>
<div>
<ol type=3D"a">
<li class=3D"MsoNormal" style=3D"COLOR: black"><span style=3D"FONT-SIZE: 12=
pt; FONT-FAMILY: &quot;Times New Roman&quot;,serif">This website seems to i=
mply =A8C strong =A8C that Srv6 is not infact IPv6 =A8C but rather IPv6&#43=
; - is this the position of the member of this working group
 or is this simply someones bizarre idea?</span><span style=3D"FONT-SIZE: 1=
2pt; FONT-FAMILY: &quot;Times New Roman&quot;,serif">
</span></li></ol>
</div>
<p><span style=3D"FONT-SIZE: 12pt; FONT-FAMILY: &quot;Times New Roman&quot;=
,serif; COLOR: black">[Robin</span></p>
<ol type=3D"a">
<li class=3D"MsoNormal" style=3D"COLOR: black"><span style=3D"FONT-SIZE: 12=
pt; FONT-FAMILY: &quot;Times New Roman&quot;,serif">This site seems heavily=
 related to the new ip stuff that was presented to the ITU =A8C does anyone=
 here know if there is any actual relation between
 this and that crowd?</span><span style=3D"FONT-SIZE: 12pt; FONT-FAMILY: &q=
uot;Times New Roman&quot;,serif"></span></li></ol>
<p class=3D"MsoNormal"><span style=3D"FONT-SIZE: 12pt; FONT-FAMILY: &quot;T=
imes New Roman&quot;,serif; COLOR: black"></span>&nbsp;</p>
<p class=3D"MsoNormal"><span style=3D"FONT-SIZE: 12pt; FONT-FAMILY: &quot;T=
imes New Roman&quot;,serif; COLOR: black">Thanks</span><span style=3D"FONT-=
SIZE: 12pt; FONT-FAMILY: &quot;Times New Roman&quot;,serif; COLOR: black"><=
/span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-SIZE: 12pt; FONT-FAMILY: &quot;T=
imes New Roman&quot;,serif; COLOR: black"></span>&nbsp;</p>
<p class=3D"MsoNormal"><span style=3D"FONT-SIZE: 12pt; FONT-FAMILY: &quot;T=
imes New Roman&quot;,serif; COLOR: black">Andrew</span><span style=3D"FONT-=
SIZE: 12pt; FONT-FAMILY: &quot;Times New Roman&quot;,serif; COLOR: black"><=
/span></p>
<p class=3D"MsoNormal"><span style=3D"FONT-SIZE: 12pt; FONT-FAMILY: &quot;T=
imes New Roman&quot;,serif; COLOR: black"></span>&nbsp;</p>
</div>
</div>
</div>
</div>
<p class=3D"MsoNormal">_______________________________________________<br>
spring mailing list<br>
<a href=3D"mailto:spring@ietf.org" rel=3D"noopener noreferrer" target=3D"_b=
lank">spring@ietf.org</a><br>
<a href=3D"https://urldefense.proofpoint.com/v2/url?u=3Dhttps-3A__www.ietf.=
org_mailman_listinfo_spring&amp;d=3DDwMFaQ&amp;c=3DLFYZ-o9_HUMeMTSQicvjIg&a=
mp;r=3Ds7ZzB4JbPv3nYuoSx5Gy8Q&amp;m=3DxY6EacJ5lx2Wdodq3HVdOJnLu47yv-NeOtF_p=
ims9wo&amp;s=3Db-d6W4ys7Vc5jHULav7uoajVG1yo_F5vTpaluGS1eIw&amp;e=3D" rel=3D=
"noopener noreferrer" target=3D"_blank">https://www.ietf.org/mailman/listin=
fo/spring</a></p>
</blockquote>
</div>
</div>
</div>
</div>
</body>
</html>

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From: Mark Smith <markzzzsmith@gmail.com>
Date: Sun, 5 Jul 2020 11:15:31 +1000
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To: Robert Raszuk <robert@raszuk.net>
Cc: Lizhenbin <lizhenbin@huawei.com>, SPRING WG <spring@ietf.org>,  Andrew Alston <Andrew.Alston@liquidtelecom.com>
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On Sat, 4 Jul 2020, 22:04 Robert Raszuk, <robert@raszuk.net> wrote:

> All,
>
> It looks to me that "IPv6+" is just a marketing name to sell a bunch of
> new IPv6 based services and has nothing to do with SPRING nor for that
> matter with IETF.
>

The name implies it is a major development effort to extend IPv6, and that
implies IETF affiliation.

Heard about SPRING++ project yet?

Think about what you would assume and how you might act regarding your
SPRING deployment plans if you'd just heard about it now.



> As such unless anyone has copyrights on that specific ASCII string any
> vendor can use it as it seems fit their marketing strategy.
>

> Likewise others could still use other similar technology marketing or
> product names "IPv6^6", "IPv6NG", "IPv6@5G" etc ...
>

Of those, only 'IPv6@5G' doesn't imply extending IPv6.



> Cheers,
> R.
>
>
> On Sat, Jul 4, 2020 at 12:40 PM Mark Smith <markzzzsmith@gmail.com> wrote=
:
>
>> Where are the IPv6+ Internet Drafts?
>>
>>
>> On Sat, 4 Jul 2020, 18:08 Lizhenbin, <lizhenbin@huawei.com> wrote:
>>
>>> Hi Andrew,
>>>
>>> Thanks for your paying attention to the website. Please refer to my
>>> clarification.
>>>
>>>
>>>
>>> a. SRv6 is the technology based on IPv6. In the past 20+ years IPv6 has
>>> being deployed. One of the most important drives is the address space. =
The
>>> development of 5G and cloud proposes the new chances for the developmen=
t
>>> and deployment of IPv6. Depending on the native IP reacheability and
>>> providing rich attributes based on the IPv6 extension headers, IPv6 can
>>> provide flexible connectivity to satisfy the requirements of 5G and clo=
ud.
>>> SRv6 is the typical representative solutions. This makes this round of
>>> IPv6-based innovations and deployments shows the new characteristics of=
 the
>>> times to some extent. Then IPv6+ concept is proposed.  It means the
>>> solutions is based on IPv6 and used for the scenarios of 5G and cloud.
>>>
>>>
>>> b. IPv6+  has nothing with the New IP. It is apparent that the solution=
s
>>> proposed in the IPv6+ are based on the IPv6 and all the standardization
>>> work is being done in IETF and has nothing with ITU-T.
>>>
>>>
>>>
>>> I am not sure if it is appropriate to discuss this work in the mailing
>>> list of SPRING WG.  More questions and comments can be sent to
>>> ipv6plus@outlook.com.
>>>
>>>
>>>
>>>
>>>
>>> Best Regards,
>>>
>>> Robin
>>>
>>>
>>>
>>>
>>>
>>>
>>> ------------------------------
>>> *=E5=8F=91=E4=BB=B6=E4=BA=BA:* spring [spring-bounces@ietf.org] =E4=BB=
=A3=E8=A1=A8 Andrew Alston [
>>> Andrew.Alston@liquidtelecom.com]
>>> *=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4:* 2020=E5=B9=B47=E6=9C=884=E6=97=
=A5 1:31
>>> *=E6=94=B6=E4=BB=B6=E4=BA=BA:* spring@ietf.org
>>> *=E4=B8=BB=E9=A2=98:* [spring] IPv6+??
>>>
>>> Hi All,
>>>
>>>
>>>
>>> I came across this website: https://www.ipv6plus.net/
>>>
>>>
>>>
>>> Now, I wish to clarify a few things.
>>>
>>>
>>>
>>>    1. This website seems to imply =E2=80=93 strong =E2=80=93 that Srv6 =
is not infact
>>>    IPv6 =E2=80=93 but rather IPv6+ - is this the position of the member=
 of this
>>>    working group or is this simply someones bizarre idea?
>>>
>>> [Robin
>>>
>>>    1. This site seems heavily related to the new ip stuff that was
>>>    presented to the ITU =E2=80=93 does anyone here know if there is any=
 actual
>>>    relation between this and that crowd?
>>>
>>>
>>>
>>> Thanks
>>>
>>>
>>>
>>> Andrew
>>>
>>>
>>> _______________________________________________
>>> spring mailing list
>>> spring@ietf.org
>>> https://www.ietf.org/mailman/listinfo/spring
>>>
>> _______________________________________________
>> spring mailing list
>> spring@ietf.org
>> https://www.ietf.org/mailman/listinfo/spring
>>
>

--0000000000002b04e605a9a77f6e
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"auto"><div><br><br><div class=3D"gmail_quote"><div dir=3D"ltr" =
class=3D"gmail_attr">On Sat, 4 Jul 2020, 22:04 Robert Raszuk, &lt;<a href=
=3D"mailto:robert@raszuk.net" rel=3D"noreferrer noreferrer" target=3D"_blan=
k">robert@raszuk.net</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quo=
te" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"=
><div dir=3D"ltr">All,<div><br></div><div>It looks to me that &quot;IPv6+&q=
uot; is just a marketing name to sell a bunch=C2=A0of new IPv6 based servic=
es and has nothing to do with SPRING nor for that matter with IETF.=C2=A0</=
div></div></blockquote></div></div><div dir=3D"auto"><br></div><div dir=3D"=
auto">The name implies it is a major development effort to extend IPv6, and=
 that implies IETF affiliation.</div><div dir=3D"auto"><br></div><div dir=
=3D"auto">Heard about SPRING++ project yet?</div><div dir=3D"auto"><br></di=
v><div dir=3D"auto">Think about what you would assume and how you might act=
 regarding your SPRING deployment plans if you&#39;d just heard about it no=
w.</div><div dir=3D"auto"><br></div><div dir=3D"auto"><br></div><div dir=3D=
"auto"><div class=3D"gmail_quote"><blockquote class=3D"gmail_quote" style=
=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir=
=3D"ltr"><div><br></div><div>As such unless anyone has copyrights on that s=
pecific ASCII string any vendor can use it as it seems fit their marketing =
strategy.=C2=A0</div></div></blockquote></div></div><div dir=3D"auto"><div =
class=3D"gmail_quote"><blockquote class=3D"gmail_quote" style=3D"margin:0 0=
 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir=3D"ltr"><div>=
<br></div><div>Likewise others could still use other similar technology mar=
keting or product names &quot;IPv6^6&quot;, &quot;IPv6NG&quot;, &quot;IPv6@=
5G&quot; etc ...=C2=A0</div></div></blockquote></div></div><div dir=3D"auto=
"><br></div><div dir=3D"auto">Of those, only &#39;IPv6@5G&#39; doesn&#39;t =
imply extending IPv6.</div><div dir=3D"auto"><br></div><div dir=3D"auto"><b=
r></div><div dir=3D"auto"><div class=3D"gmail_quote"><blockquote class=3D"g=
mail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-l=
eft:1ex"><div dir=3D"ltr"><div><br></div><div>Cheers,</div><div>R.</div><di=
v><br></div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"=
gmail_attr">On Sat, Jul 4, 2020 at 12:40 PM Mark Smith &lt;<a href=3D"mailt=
o:markzzzsmith@gmail.com" rel=3D"noreferrer noreferrer noreferrer" target=
=3D"_blank">markzzzsmith@gmail.com</a>&gt; wrote:<br></div><blockquote clas=
s=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid r=
gb(204,204,204);padding-left:1ex"><div dir=3D"auto">Where are the IPv6+ Int=
ernet Drafts?<div dir=3D"auto"><br></div></div><br><div class=3D"gmail_quot=
e"><div dir=3D"ltr" class=3D"gmail_attr">On Sat, 4 Jul 2020, 18:08 Lizhenbi=
n, &lt;<a href=3D"mailto:lizhenbin@huawei.com" rel=3D"noreferrer noreferrer=
 noreferrer" target=3D"_blank">lizhenbin@huawei.com</a>&gt; wrote:<br></div=
><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border=
-left:1px solid rgb(204,204,204);padding-left:1ex">




<div lang=3D"en-KE">
<div style=3D"direction:ltr;font-family:Tahoma;color:rgb(0,0,0);font-size:1=
0pt">
<p>Hi Andrew,</p>
<p>Thanks for your paying attention to the website. Please refer to my clar=
ification.</p>
<p>=C2=A0</p>
<p>a. SRv6 is the technology based on IPv6. In the past 20+ years IPv6 has =
being deployed. One of the most important drives is the address space. The =
development of 5G and cloud proposes the new chances for the development an=
d deployment of IPv6. Depending
 on the native IP reacheability and providing rich attributes based on the =
IPv6 extension headers, IPv6 can provide flexible connectivity to satisfy t=
he requirements of 5G and cloud. SRv6 is the typical representative solutio=
ns. This makes this round of IPv6-based
 innovations and deployments shows the new characteristics of the times to =
some extent. Then IPv6+ concept is proposed.=C2=A0 It means the solutions i=
s based on IPv6 and used for the scenarios of 5G and cloud.
</p>
<p><br>
b. IPv6+=C2=A0 has nothing with the New IP. It is apparent that the solutio=
ns proposed in the IPv6+ are based on the IPv6 and all the standardization =
work is being done in IETF and has nothing with ITU-T.
</p>
<p>=C2=A0</p>
<p>I am not sure if it is appropriate to discuss this work in the mailing l=
ist of SPRING WG.=C2=A0 More questions and comments can be sent to
<a href=3D"mailto:ipv6plus@outlook.com" rel=3D"noreferrer noreferrer norefe=
rrer noreferrer" target=3D"_blank">ipv6plus@outlook.com</a>. </p>
<p>=C2=A0</p>
<p>=C2=A0</p>
<p>Best Regards,</p>
<p>Robin</p>
<p>=C2=A0</p>
<p>=C2=A0</p>
<p>=C2=A0</p>
<div style=3D"font-size:16px;font-family:&quot;Times New Roman&quot;;color:=
rgb(0,0,0)">
<hr>
<div id=3D"m_4009921211744565779m_8912193854204598885m_-2980071506168402848=
gmail-m_-585733502242607828m_5082741418290941997divRpF977530" style=3D"dire=
ction:ltr"><font color=3D"#000000" size=3D"2" face=3D"Tahoma"><b>=E5=8F=91=
=E4=BB=B6=E4=BA=BA:</b> spring [<a href=3D"mailto:spring-bounces@ietf.org" =
rel=3D"noreferrer noreferrer noreferrer noreferrer" target=3D"_blank">sprin=
g-bounces@ietf.org</a>] =E4=BB=A3=E8=A1=A8 Andrew Alston [<a href=3D"mailto=
:Andrew.Alston@liquidtelecom.com" rel=3D"noreferrer noreferrer noreferrer n=
oreferrer" target=3D"_blank">Andrew.Alston@liquidtelecom.com</a>]<br>
<b>=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4:</b> 2020=E5=B9=B47=E6=9C=884=E6=97=
=A5 1:31<br>
<b>=E6=94=B6=E4=BB=B6=E4=BA=BA:</b> <a href=3D"mailto:spring@ietf.org" rel=
=3D"noreferrer noreferrer noreferrer noreferrer" target=3D"_blank">spring@i=
etf.org</a><br>
<b>=E4=B8=BB=E9=A2=98:</b> [spring] IPv6+??<br>
</font><br>
</div>
<div></div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Hi All,</span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"></span>=C2=A0</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">I came across this website: </s=
pan><a href=3D"https://www.ipv6plus.net/" rel=3D"noopener noreferrer norefe=
rrer noreferrer noreferrer noreferrer" target=3D"_blank">https://www.ipv6pl=
us.net/</a></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"></span>=C2=A0</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Now, I wish to clarify a few th=
ings.</span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"></span>=C2=A0</p>
<div>
<ol style=3D"margin-top:0cm" type=3D"a">
<li style=3D"margin-left:0cm"><span lang=3D"EN-US">This website seems to im=
ply =E2=80=93 strong =E2=80=93 that Srv6 is not infact IPv6 =E2=80=93 but r=
ather IPv6+ - is this the position of the member of this working group or i=
s this simply someones bizarre idea?</span>
</li></ol>
</div>
<p style=3D"margin-left:0cm">[Robin</p>
<ol style=3D"margin-top:0cm" type=3D"a">
<li style=3D"margin-left:0cm"><span lang=3D"EN-US">This site seems heavily =
related to the new ip stuff that was presented to the ITU =E2=80=93 does an=
yone here know if there is any actual relation between this and that crowd?=
</span></li></ol>
<p class=3D"MsoNormal"><span lang=3D"EN-US"></span>=C2=A0</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Thanks</span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"></span>=C2=A0</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Andrew</span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"></span>=C2=A0</p>
</div>
</div>
</div>
</div>

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From: Parag Kaneriya <pkaneria@juniper.net>
To: "lsr@ietf.org" <lsr@ietf.org>, SPRING WG <spring@ietf.org>
Thread-Topic: Re: [spring] [Lsr] clarification of END Point behavior in draft-ietf-spring-srv6-network-programming
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/fs7V20h-N74BbdAlQxwdp9rOrlc>
Subject: Re: [spring] [Lsr] clarification of END Point behavior in draft-ietf-spring-srv6-network-programming
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Content-Type: text/plain; charset="us-ascii"
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Hello,

I am going through recent draft https://tools.ietf.org/pdf/draft-ietf-sprin=
g-srv6-network-programming-16.pdf

Changes are follow ,

4.1. End: Endpoint

S01. When an SRH is processed {
S02. If (Segments Left =3D=3D 0) {
S03. Proceed to process the next header in the packet, whose type is identi=
fied by the Next Header field in the routing header.
S04. }
S05. If (IPv6 Hop Limit <=3D 1) {
S06. Send an ICMP Time Exceeded message to the Source Address, Code 0 (Hop =
limit exceeded in transit), Interrupt packet processing and discard
     the packet.
S07. }


With these change, I have below few question


  1.  Can END SID can be last SID of the SID list ?   earlier draft (not su=
re which version), it was explicitly mentioned that last SID can't be END s=
id ( Most basic flavors ).
  2.  IF yes then When/Who will remove the SRH header when last sid is END =
SID in the sid list.

Regards
Parag


Juniper Business Use Only

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<p class=3D"MsoNormal"><span style=3D"font-size:12.5pt;font-family:&quot;Co=
urier New&quot;">Hello,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.5pt;font-family:&quot;Co=
urier New&quot;"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.5pt;font-family:&quot;Co=
urier New&quot;">I am going through recent draft</span>
<a href=3D"https://tools.ietf.org/pdf/draft-ietf-spring-srv6-network-progra=
mming-16.pdf">
https://tools.ietf.org/pdf/draft-ietf-spring-srv6-network-programming-16.pd=
f</a><o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.5pt;font-family:&quot;Co=
urier New&quot;">Changes are follow ,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.5pt;font-family:&quot;Co=
urier New&quot;">4.1. End: Endpoint<o:p></o:p></span></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.5pt;font-family:&quot;Co=
urier New&quot;">S01. When an SRH is processed {
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.5pt;font-family:&quot;Co=
urier New&quot;">S02. If (Segments Left =3D=3D 0) {
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.5pt;font-family:&quot;Co=
urier New&quot;">S03. Proceed to process the next header in the packet, who=
se type is identified by the Next Header field in the routing header.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.5pt;font-family:&quot;Co=
urier New&quot;">S04. }
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.5pt;font-family:&quot;Co=
urier New&quot;">S05. If (IPv6 Hop Limit &lt;=3D 1) {
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.5pt;font-family:&quot;Co=
urier New&quot;">S06. Send an ICMP Time Exceeded message to the Source Addr=
ess, Code 0 (Hop limit exceeded in transit), Interrupt packet processing an=
d discard &nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.5pt;font-family:&quot;Co=
urier New&quot;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;the packet.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.5pt;font-family:&quot;Co=
urier New&quot;">S07. }<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.5pt;font-family:&quot;Co=
urier New&quot;"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.5pt;font-family:&quot;Co=
urier New&quot;"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.5pt;font-family:&quot;Co=
urier New&quot;">With these change, I have below few question<o:p></o:p></s=
pan></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.5pt;font-family:&quot;Co=
urier New&quot;"><o:p>&nbsp;</o:p></span></p>
<ol style=3D"margin-top:0in" start=3D"1" type=3D"1">
<li class=3D"MsoListParagraph" style=3D"margin-left:0in;mso-list:l0 level1 =
lfo1"><span style=3D"font-size:12.5pt;font-family:&quot;Courier New&quot;">=
Can END SID can be last SID of the SID list ?&nbsp; &nbsp;earlier draft (no=
t sure which version), it was explicitly mentioned that last
 SID can&#8217;t be END sid ( Most basic flavors ).<o:p></o:p></span></li><=
li class=3D"MsoListParagraph" style=3D"margin-left:0in;mso-list:l0 level1 l=
fo1"><span style=3D"font-size:12.5pt;font-family:&quot;Courier New&quot;">I=
F yes then When/Who will remove the SRH header when last sid is END SID in =
the sid list.
<o:p></o:p></span></li></ol>
<p class=3D"MsoNormal"><span style=3D"font-size:12.5pt;font-family:&quot;Co=
urier New&quot;"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.5pt;font-family:&quot;Co=
urier New&quot;">Regards<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.5pt;font-family:&quot;Co=
urier New&quot;">Parag<o:p></o:p></span></p>
<br>
<p class=3D"msipfooter30b3d538" align=3D"Center" style=3D"margin:0"><span s=
tyle=3D"font-size:7.0pt;font-family:Calibri;color:#000000">Juniper Business=
 Use Only</span></p>
</div>
</body>
</html>

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From: Dhruv Dhody <dhruv.ietf@gmail.com>
Date: Mon, 6 Jul 2020 21:17:08 +0530
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Subject: Re: [spring] Understanding the replication draft
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Hi WG,

Reading the I-D and based on the discussion on this thread I believe
more description is required. As Joel pointed out, clarity on what is
legal/illegal (or out of scope for now) is needed.

I have no strong opinion if that needs to be done before or after adoption!

I do not follow PIM closely and just realized that the SR P2MP Policy
in the PIM I-D [1] is adopted by the PIM WG, but not yet posted [2].
I wanted to make sure that it has been decided that PIM is the right
place to define SR P2MP policy (discussed either in the WG and/or
between chairs/AD)?

Thanks!
Dhruv

[1] https://datatracker.ietf.org/doc/draft-voyer-pim-sr-p2mp-policy/
[2] https://mailarchive.ietf.org/arch/msg/pim/YyF7I02aaRtpZngf7uTno69IB90/



On Thu, Jul 2, 2020 at 12:05 PM Rishabh Parekh <rishabhp@gmail.com> wrote:
>
> Jeff,
> Your explanation of distinct Transport SIDs and service labels (which
> appear at BoS) applies to Point-to-Point services. Same model can be
> applied when a Point-to-Multipoint service is realized by one
> end-to-end replication segment; "Downstream Replication SID" as
> specified in draft is effectively the service label at a specific
> downstream node of a Replication segment with Transport SIDs imposed
> on top to take replicated packet to that node.
>
> However, when a Point-to-Multipoint service is over replication
> segments stitched together to form a P2MP tree, as described in PIM WG
> draft, this model no longer holds since all service egress nodes would
> have to agree on one common service label. So  P2MP services
> implicitly map the P2MP transport label (Replication SID at BoS in
> this case) to the P2MP service. Of course, this implies one-to-one
> association between a P2MP service and a P2MP transport. There are
> techniques to share one P2MP transport across different P2MP services
> using either upstream assigned label or a global context from
> "Domain-wide Common Block"
> (draft-ietf-bess-mvpn-evpn-aggregation-label). These and other gory
> details are described in Section 2 of PIM WG draft and to some extent
> in BESS MVPN-EVPN draft.
>
> -Rishabh
>
> On Wed, Jul 1, 2020 at 5:50 PM Jeff Tantsura <jefftant.ietf@gmail.com> wr=
ote:
> >
> > Rishabh,
> >
> > Transport SID with a service on top can=E2=80=99t be a BoS label, there=
=E2=80=99s s service label below, since a service is associated with a part=
icular node, there would be at least a N-SID associated with the service no=
de.
> > It seems like B-SID behavior is the correct one, when R-SID is looked u=
p and popped, it would yield: replication  (as programmed by a controller, =
since there=E2=80=99s no state) + new label stack associated with the new, =
post replication/branching path that is imposed on top of existing label st=
ack, so service label ( + optionally more transport labels) are preserved.
> >
> > Cheers,
> > Jeff
> > On Jul 1, 2020, 12:40 PM -0700, Rishabh Parekh <rishabhp@gmail.com>, wr=
ote:
> >
> > Robert,
> >
> > A) Firmly state that replication SID MUST be the last one on the stack
> > B) Instead of real SID after the replication SID provide a binding SID =
which locally will be mapped to a different SID list imposed to each replic=
ated flow.
> >
> >
> > We would be fine with A), but we don't want to exclude possibility of
> > something like what you describe in B.
> >
> > -Rishabh
> >
> > On Wed, Jul 1, 2020 at 12:27 PM Robert Raszuk <robert@raszuk.net> wrote=
:
> >
> >
> > Hi Rishabh,
> >
> > Of course, care must be
> > taken to avoid the "explosion" as you describe it. G-SID-2 has to map
> > to a unique node; for example, it may be an Anycast-SID that takes
> > packet to distinct nodes from each of the downstream node, or the
> > downstream nodes can be border nodes connecting to other segment
> > routing domains where G-SID-2 resolves to distinct nodes in each
> > domain.
> >
> >
> > I think you are stretching it too thin.
> >
> > See even if G-SID-2 is anycast SID you have zero assurance that physica=
l nodes packets will land on would be at all diverse.
> >
> > Likewise crossing domains yet providing identical global SID now to be =
a different node in each such domain to me is not a realistic example.
> >
> > I think we have two options:
> >
> > A) Firmly state that replication SID MUST be the last one on the stack
> >
> > B) Instead of real SID after the replication SID provide a binding SID =
which locally will be mapped to a different SID list imposed to each replic=
ated flow.
> >
> > What is currently in the draft seems to be very counterintuitive and IM=
HO will result in operational difficulties.
> >
> > Thx a lot,
> > R.
> >
> >
> > _______________________________________________
> > spring mailing list
> > spring@ietf.org
> > https://www.ietf.org/mailman/listinfo/spring
>
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring


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From: Huaimo Chen <huaimo.chen@futurewei.com>
To: Rishabh Parekh <rishabhp@gmail.com>
CC: "spring@ietf.org" <spring@ietf.org>, "bruno.decraene@orange.com" <bruno.decraene@orange.com>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/ZL_EyWMGunhX6tnA-kUlXM9lagk>
Subject: Re: [spring] WG adoption call for draft-voyer-spring-sr-replication-segment
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Hi Rishabh,

    My responses are inline below.

Best Regards,
Huaimo
________________________________
From: Rishabh Parekh <rishabhp@gmail.com>
Sent: Wednesday, July 1, 2020 12:18 PM
To: Huaimo Chen <huaimo.chen@futurewei.com>
Cc: spring@ietf.org <spring@ietf.org>; bruno.decraene@orange.com <bruno.dec=
raene@orange.com>
Subject: Re: [spring] WG adoption call for draft-voyer-spring-sr-replicatio=
n-segment

Huaimo,
Responses inline below.

On Tue, Jun 30, 2020 at 7:46 AM Huaimo Chen <huaimo.chen@futurewei.com> wro=
te:
>
> Hi Authors,
>
>     I have a few of questions.
>
>     Should a replication-segment be generalized to be a special SID (say =
a multicast SID allocated from a multicast SID block)?
,
[RP] This is a good question. We have left this unspecified in draft
because the Replication SID can be assigned either from SRGB, in which
case it would be same on all nodes of Replication segment, or from
SRLB where it could be different on the nodes.
>
>     Should a replication-segment be associated with just a set of downstr=
eam SIDs without the  node-IDs? Where the downstream SIDs may be replicatio=
n-segments or normal SIDs in some cases (for example when the downstream no=
des are egresses).

[RP] I don't understand the question. Can you clarify what you mean by
"... without Node-IDs"? Note that Node-IDs are part of the Replication
segment state, but only Replication SIDs are in the label stack.

[HC]: Why do you need Node-IDs? When you have a special SID, say a multicas=
t SID, which is associated with a set of downstream (or next hop nodes) SID=
s, you can replicate the packet received from an incoming interface and sen=
d the duplicated the packet to each of the downstream nodes according to th=
e set of downstream SIDs.

>
>     Should a state in a node for a replication-segment be removed? If a s=
tate is stored in a node (each node) for a (each) replication segment of a =
(each) SR P2MP path, there may be some scalability issue. This seems not co=
nsistent with the principles of the segment routing, in which no state is s=
tored in the core of the network.

[RP] As mentioned in Introduction of the draft, there is no state
required on intermediate nodes that are not part of a Replication
segment.

[HC]: Can you show an example of this (one SR point-to-multipoint path tran=
sports a packet from its ingress via some core nodes to its egresses withou=
t any state stored in the core nodes for this SR P2MP path) ?

>
> Best Regards,
> Huaimo
> -----Original Message-----
> From: spring <spring-bounces@ietf.org> On Behalf Of Stone, Andrew (Nokia =
- CA/Ottawa)
> Sent: Monday, June 22, 2020 2:44 PM
> To: bruno.decraene@orange.com; spring@ietf.org
> Subject: Re: [spring] WG adoption call for draft-voyer-spring-sr-replicat=
ion-segment
>
> Hi Spring WG
>
> Support adoption.
>
> Willing to work on the document, and already participating in related doc=
uments in PCE and IDR.
>
> Thanks
> Andrew
>
>
> On 2020-06-22, 10:46 AM, "spring on behalf of bruno.decraene@orange.com" =
<spring-bounces@ietf.org on behalf of bruno.decraene@orange.com> wrote:
>
>     Hi SPRING WG,
>
>     Authors of draft-voyer-spring-sr-replication-segment [1] have asked f=
or WG adoption.
>
>     Please indicate your support, comments, or objection, for adopting th=
is draft as a working group item by July 6th 2020.
>
>     Could those who are willing to work on this document, please notify t=
he list. That gives us an indication of the energy level in the working gro=
up to work on this.
>
>     As a reminder, the call for IPR has been done last November. [2]
>
>     Thanks,
>     Regards,
>     Bruno, Jim, Joel
>
>     [1] https://nam11.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F=
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<div style=3D"font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12p=
t; color:rgb(0,0,0)">
Hi&nbsp;<span style=3D"font-family:Calibri,sans-serif; font-size:14.6667px;=
 background-color:rgb(255,255,255); display:inline!important">Rishabh,</spa=
n></div>
<div style=3D"font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12p=
t; color:rgb(0,0,0)">
<span style=3D"font-family:Calibri,sans-serif; font-size:14.6667px; backgro=
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</span></div>
<div style=3D"font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12p=
t; color:rgb(0,0,0)">
<span style=3D"font-family:Calibri,sans-serif; font-size:14.6667px; backgro=
und-color:rgb(255,255,255); display:inline!important">&nbsp; &nbsp; My&nbsp=
;responses are inline below.</span></div>
<div style=3D"font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12p=
t; color:rgb(0,0,0)">
<span style=3D"font-family:Calibri,sans-serif; font-size:14.6667px; backgro=
und-color:rgb(255,255,255); display:inline!important"><br>
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<div>
<div id=3D"appendonsend"></div>
<div style=3D"font-family:Calibri,Arial,Helvetica,sans-serif; font-size:12p=
t; color:rgb(0,0,0)">
<span>Best Regards,<br>
</span><span>Huaimo</span><br>
</div>
<hr tabindex=3D"-1" style=3D"display:inline-block; width:98%">
<div id=3D"divRplyFwdMsg" dir=3D"ltr"><font face=3D"Calibri, sans-serif" co=
lor=3D"#000000" style=3D"font-size:11pt"><b>From:</b> Rishabh Parekh &lt;ri=
shabhp@gmail.com&gt;<br>
<b>Sent:</b> Wednesday, July 1, 2020 12:18 PM<br>
<b>To:</b> Huaimo Chen &lt;huaimo.chen@futurewei.com&gt;<br>
<b>Cc:</b> spring@ietf.org &lt;spring@ietf.org&gt;; bruno.decraene@orange.c=
om &lt;bruno.decraene@orange.com&gt;<br>
<b>Subject:</b> Re: [spring] WG adoption call for draft-voyer-spring-sr-rep=
lication-segment</font>
<div>&nbsp;</div>
</div>
<div class=3D"BodyFragment"><font size=3D"2"><span style=3D"font-size:11pt"=
>
<div class=3D"PlainText">Huaimo,<br>
Responses inline below.<br>
<br>
On Tue, Jun 30, 2020 at 7:46 AM Huaimo Chen &lt;huaimo.chen@futurewei.com&g=
t; wrote:<br>
&gt;<br>
&gt; Hi Authors,<br>
&gt;<br>
&gt;&nbsp;&nbsp;&nbsp;&nbsp; I have a few of questions.<br>
&gt;<br>
&gt;&nbsp;&nbsp;&nbsp;&nbsp; Should a replication-segment be generalized to=
 be a special SID (say a multicast SID allocated from a multicast SID block=
)?<br>
,<br>
[RP] This is a good question. We have left this unspecified in draft<br>
because the Replication SID can be assigned either from SRGB, in which<br>
case it would be same on all nodes of Replication segment, or from<br>
SRLB where it could be different on the nodes.<br>
&gt;<br>
&gt;&nbsp;&nbsp;&nbsp;&nbsp; Should a replication-segment be associated wit=
h just a set of downstream SIDs without the&nbsp; node-IDs? Where the downs=
tream SIDs may be replication-segments or normal SIDs in some cases (for ex=
ample when the downstream nodes are egresses).<br>
<br>
[RP] I don't understand the question. Can you clarify what you mean by<br>
&quot;... without Node-IDs&quot;? Note that Node-IDs are part of the Replic=
ation<br>
segment state, but only Replication SIDs are in the label stack.</div>
<div class=3D"PlainText"><br>
</div>
<div class=3D"PlainText">[HC]: Why do you need Node-IDs? When you have a sp=
ecial SID, say a multicast SID, which is associated with a set of downstrea=
m (or next hop nodes) SIDs, you can replicate the packet received from an i=
ncoming interface and send the duplicated
 the packet to each of the downstream nodes according to the set of downstr=
eam SIDs.</div>
<div class=3D"PlainText">&nbsp;<br>
&gt;<br>
&gt;&nbsp;&nbsp;&nbsp;&nbsp; Should a state in a node for a replication-seg=
ment be removed? If a state is stored in a node (each node) for a (each) re=
plication segment of a (each) SR P2MP path, there may be some scalability i=
ssue. This seems not consistent with the principles of
 the segment routing, in which no state is stored in the core of the networ=
k.<br>
<br>
[RP] As mentioned in Introduction of the draft, there is no state<br>
required on intermediate nodes that are not part of a Replication<br>
segment.<br>
<br>
[HC]: Can you show an example of this (one SR point-to-multipoint path tran=
sports a packet from its ingress via some core nodes to its egresses withou=
t any state stored in the core nodes for this SR P2MP path) ?&nbsp;<br>
<br>
&gt;<br>
&gt; Best Regards,<br>
&gt; Huaimo<br>
&gt; -----Original Message-----<br>
&gt; From: spring &lt;spring-bounces@ietf.org&gt; On Behalf Of Stone, Andre=
w (Nokia - CA/Ottawa)<br>
&gt; Sent: Monday, June 22, 2020 2:44 PM<br>
&gt; To: bruno.decraene@orange.com; spring@ietf.org<br>
&gt; Subject: Re: [spring] WG adoption call for draft-voyer-spring-sr-repli=
cation-segment<br>
&gt;<br>
&gt; Hi Spring WG<br>
&gt;<br>
&gt; Support adoption.<br>
&gt;<br>
&gt; Willing to work on the document, and already participating in related =
documents in PCE and IDR.<br>
&gt;<br>
&gt; Thanks<br>
&gt; Andrew<br>
&gt;<br>
&gt;<br>
&gt; On 2020-06-22, 10:46 AM, &quot;spring on behalf of bruno.decraene@oran=
ge.com&quot; &lt;spring-bounces@ietf.org on behalf of bruno.decraene@orange=
.com&gt; wrote:<br>
&gt;<br>
&gt;&nbsp;&nbsp;&nbsp;&nbsp; Hi SPRING WG,<br>
&gt;<br>
&gt;&nbsp;&nbsp;&nbsp;&nbsp; Authors of draft-voyer-spring-sr-replication-s=
egment [1] have asked for WG adoption.<br>
&gt;<br>
&gt;&nbsp;&nbsp;&nbsp;&nbsp; Please indicate your support, comments, or obj=
ection, for adopting this draft as a working group item by July 6th 2020.<b=
r>
&gt;<br>
&gt;&nbsp;&nbsp;&nbsp;&nbsp; Could those who are willing to work on this do=
cument, please notify the list. That gives us an indication of the energy l=
evel in the working group to work on this.<br>
&gt;<br>
&gt;&nbsp;&nbsp;&nbsp;&nbsp; As a reminder, the call for IPR has been done =
last November. [2]<br>
&gt;<br>
&gt;&nbsp;&nbsp;&nbsp;&nbsp; Thanks,<br>
&gt;&nbsp;&nbsp;&nbsp;&nbsp; Regards,<br>
&gt;&nbsp;&nbsp;&nbsp;&nbsp; Bruno, Jim, Joel<br>
&gt;<br>
&gt;&nbsp;&nbsp;&nbsp;&nbsp; [1] <a href=3D"https://nam11.safelinks.protect=
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From: "Stone, Andrew (Nokia - CA/Ottawa)" <andrew.stone@nokia.com>
To: Huaimo Chen <huaimo.chen@futurewei.com>, Rishabh Parekh <rishabhp@gmail.com>
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Subject: Re: [spring] WG adoption call for draft-voyer-spring-sr-replication-segment
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Thread-Topic: [spring] Understanding the replication draft
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From: Dhruv Dhody <dhruv.ietf@gmail.com>
Date: Tue, 7 Jul 2020 15:31:38 +0530
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To: bruno.decraene@orange.com
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/qpkHdzmCT_EiWd0QA4MeOG52XDU>
Subject: Re: [spring] Understanding the replication draft
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Hi Bruno,

Yes, thanks! I was just making sure that we have an agreement that PIM
is the right place to define SR P2MP Policy.

What is missing in the spring I-D is some very high level discussion
in terms of architecture on how replication segment and SR P2MP policy
come together. The current I-D tries to define a replication segment
as an independent entity that could be used on its own but it makes it
difficult to visualize without some high level text or an example.

Thanks!
Dhruv

On Tue, Jul 7, 2020 at 3:12 PM <bruno.decraene@orange.com> wrote:
>
> Hi Dhruv,
>
> > -----Original Message-----
> > From: spring [mailto:spring-bounces@ietf.org] On Behalf Of Dhruv Dhody
> > Subject: Re: [spring] Understanding the replication draft
> >
> > Hi WG,
> >
> > Reading the I-D and based on the discussion on this thread I believe
> > more description is required. As Joel pointed out, clarity on what is
> > legal/illegal (or out of scope for now) is needed.
>
> I leave this for the authors to reply.
>
> > I have no strong opinion if that needs to be done before or after adopt=
ion!
> >
> > I do not follow PIM closely and just realized that the SR P2MP Policy
> > in the PIM I-D [1] is adopted by the PIM WG, but not yet posted [2].
> > I wanted to make sure that it has been decided that PIM is the right
> > place to define SR P2MP policy (discussed either in the WG and/or
> > between chairs/AD)?
>
> draft-voyer-pim-sr-p2mp-policy-00 is to be worked in the PIM WG.
> The PIM WG is waiting for the SPRING WG to adopt draft-voyer-spring-sr-re=
plication-segment, since the -pim- document has a dependency on the -spring=
- document.
>
> Quoting the PIM chairs: "We have solid support to adopt this draft. [...]=
 We are waiting to hear back from the spring chairs as to the wg status of =
the local replication draft of which your draft is dependent. So please hol=
d off on submitting the new draft-ietf-pim-sr-p2mp-policy until they give u=
s the green light."
>
> Does this answer your question?
>
> --Bruno
>
> > Thanks!
> > Dhruv
> >
> > [1] https://datatracker.ietf.org/doc/draft-voyer-pim-sr-p2mp-policy/
> > [2]
> > https://mailarchive.ietf.org/arch/msg/pim/YyF7I02aaRtpZngf7uTno69IB90/
> >
> >
> >
> > On Thu, Jul 2, 2020 at 12:05 PM Rishabh Parekh <rishabhp@gmail.com>
> > wrote:
> > >
> > > Jeff,
> > > Your explanation of distinct Transport SIDs and service labels (which
> > > appear at BoS) applies to Point-to-Point services. Same model can be
> > > applied when a Point-to-Multipoint service is realized by one
> > > end-to-end replication segment; "Downstream Replication SID" as
> > > specified in draft is effectively the service label at a specific
> > > downstream node of a Replication segment with Transport SIDs imposed
> > > on top to take replicated packet to that node.
> > >
> > > However, when a Point-to-Multipoint service is over replication
> > > segments stitched together to form a P2MP tree, as described in PIM W=
G
> > > draft, this model no longer holds since all service egress nodes woul=
d
> > > have to agree on one common service label. So  P2MP services
> > > implicitly map the P2MP transport label (Replication SID at BoS in
> > > this case) to the P2MP service. Of course, this implies one-to-one
> > > association between a P2MP service and a P2MP transport. There are
> > > techniques to share one P2MP transport across different P2MP services
> > > using either upstream assigned label or a global context from
> > > "Domain-wide Common Block"
> > > (draft-ietf-bess-mvpn-evpn-aggregation-label). These and other gory
> > > details are described in Section 2 of PIM WG draft and to some extent
> > > in BESS MVPN-EVPN draft.
> > >
> > > -Rishabh
> > >
> > > On Wed, Jul 1, 2020 at 5:50 PM Jeff Tantsura <jefftant.ietf@gmail.com=
>
> > wrote:
> > > >
> > > > Rishabh,
> > > >
> > > > Transport SID with a service on top can=E2=80=99t be a BoS label, t=
here=E2=80=99s s service
> > label below, since a service is associated with a particular node, ther=
e would
> > be at least a N-SID associated with the service node.
> > > > It seems like B-SID behavior is the correct one, when R-SID is look=
ed up
> > and popped, it would yield: replication  (as programmed by a controller=
, since
> > there=E2=80=99s no state) + new label stack associated with the new, po=
st
> > replication/branching path that is imposed on top of existing label sta=
ck, so
> > service label ( + optionally more transport labels) are preserved.
> > > >
> > > > Cheers,
> > > > Jeff
> > > > On Jul 1, 2020, 12:40 PM -0700, Rishabh Parekh <rishabhp@gmail.com>=
,
> > wrote:
> > > >
> > > > Robert,
> > > >
> > > > A) Firmly state that replication SID MUST be the last one on the st=
ack
> > > > B) Instead of real SID after the replication SID provide a binding =
SID which
> > locally will be mapped to a different SID list imposed to each replicat=
ed flow.
> > > >
> > > >
> > > > We would be fine with A), but we don't want to exclude possibility =
of
> > > > something like what you describe in B.
> > > >
> > > > -Rishabh
> > > >
> > > > On Wed, Jul 1, 2020 at 12:27 PM Robert Raszuk <robert@raszuk.net>
> > wrote:
> > > >
> > > >
> > > > Hi Rishabh,
> > > >
> > > > Of course, care must be
> > > > taken to avoid the "explosion" as you describe it. G-SID-2 has to m=
ap
> > > > to a unique node; for example, it may be an Anycast-SID that takes
> > > > packet to distinct nodes from each of the downstream node, or the
> > > > downstream nodes can be border nodes connecting to other segment
> > > > routing domains where G-SID-2 resolves to distinct nodes in each
> > > > domain.
> > > >
> > > >
> > > > I think you are stretching it too thin.
> > > >
> > > > See even if G-SID-2 is anycast SID you have zero assurance that phy=
sical
> > nodes packets will land on would be at all diverse.
> > > >
> > > > Likewise crossing domains yet providing identical global SID now to=
 be a
> > different node in each such domain to me is not a realistic example.
> > > >
> > > > I think we have two options:
> > > >
> > > > A) Firmly state that replication SID MUST be the last one on the st=
ack
> > > >
> > > > B) Instead of real SID after the replication SID provide a binding =
SID which
> > locally will be mapped to a different SID list imposed to each replicat=
ed flow.
> > > >
> > > > What is currently in the draft seems to be very counterintuitive an=
d IMHO
> > will result in operational difficulties.
> > > >
> > > > Thx a lot,
> > > > R.
> > > >
> > > >
> > > > _______________________________________________
> > > > spring mailing list
> > > > spring@ietf.org
> > > > https://www.ietf.org/mailman/listinfo/spring
> > >
> > > _______________________________________________
> > > spring mailing list
> > > spring@ietf.org
> > > https://www.ietf.org/mailman/listinfo/spring
> >
> > _______________________________________________
> > spring mailing list
> > spring@ietf.org
> > https://www.ietf.org/mailman/listinfo/spring
>
> _________________________________________________________________________=
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From: Alexander Vainshtein <Alexander.Vainshtein@rbbn.com>
To: Dhruv Dhody <dhruv.ietf@gmail.com>, "bruno.decraene@orange.com" <bruno.decraene@orange.com>
CC: "spring@ietf.org" <spring@ietf.org>
Thread-Topic: [spring] Understanding the replication draft
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<html><body>Dhruv, Bruno and all,<BR>
Regarding the statement &quot; What is missing in the spring I-D is some ve=
ry high level discussion in terms of architecture on how replication segmen=
t and SR P2MP policy come together&quot; - I cannot agree more.<BR>
<BR>
My 2c,<BR>
Sasha<BR>
<BR>
Office: +972-39266302<BR>
Cell:      +972-549266302<BR>
Email:   <a href=3D"mailto:Alexander.Vainshtein@ecitele.com">Alexander.Vain=
shtein@ecitele.com</a><BR>
<BR>
<BR>
-----Original Message-----<BR>
From: spring &lt;spring-bounces@ietf.org&gt; On Behalf Of Dhruv Dhody<BR>
Sent: Tuesday, July 7, 2020 1:02 PM<BR>
To: <a href=3D"mailto:bruno.decraene@orange.com">bruno.decraene@orange.com<=
/a><BR>
Cc: <a href=3D"mailto:spring@ietf.org">spring@ietf.org</a><BR>
Subject: Re: [spring] Understanding the replication draft<BR>
<BR>
Hi Bruno,<BR>
<BR>
Yes, thanks! I was just making sure that we have an agreement that PIM is t=
he right place to define SR P2MP Policy.<BR>
<BR>
What is missing in the spring I-D is some very high level discussion in ter=
ms of architecture on how replication segment and SR P2MP policy come toget=
her. The current I-D tries to define a replication segment as an independen=
t entity that could be used on its own but it makes it difficult to visuali=
ze without some high level text or an example.<BR>
<BR>
Thanks!<BR>
Dhruv<BR>
<BR>
On Tue, Jul 7, 2020 at 3:12 PM &lt;bruno.decraene@orange.com&gt; wrote:<BR>
&gt;<BR>
&gt; Hi Dhruv,<BR>
&gt;<BR>
&gt; &gt; -----Original Message-----<BR>
&gt; &gt; From: spring [mailto:spring-bounces@ietf.org] On Behalf Of Dhruv =
<BR>
&gt; &gt; Dhody<BR>
&gt; &gt; Subject: Re: [spring] Understanding the replication draft<BR>
&gt; &gt;<BR>
&gt; &gt; Hi WG,<BR>
&gt; &gt;<BR>
&gt; &gt; Reading the I-D and based on the discussion on this thread I beli=
eve <BR>
&gt; &gt; more description is required. As Joel pointed out, clarity on wha=
t <BR>
&gt; &gt; is legal/illegal (or out of scope for now) is needed.<BR>
&gt;<BR>
&gt; I leave this for the authors to reply.<BR>
&gt;<BR>
&gt; &gt; I have no strong opinion if that needs to be done before or after=
 adoption!<BR>
&gt; &gt;<BR>
&gt; &gt; I do not follow PIM closely and just realized that the SR P2MP <B=
R>
&gt; &gt; Policy in the PIM I-D [1] is adopted by the PIM WG, but not yet p=
osted [2].<BR>
&gt; &gt; I wanted to make sure that it has been decided that PIM is the ri=
ght <BR>
&gt; &gt; place to define SR P2MP policy (discussed either in the WG and/or=
 <BR>
&gt; &gt; between chairs/AD)?<BR>
&gt;<BR>
&gt; draft-voyer-pim-sr-p2mp-policy-00 is to be worked in the PIM WG.<BR>
&gt; The PIM WG is waiting for the SPRING WG to adopt draft-voyer-spring-sr=
-replication-segment, since the -pim- document has a dependency on the -spr=
ing- document.<BR>
&gt;<BR>
&gt; Quoting the PIM chairs: &quot;We have solid support to adopt this draf=
t. [...] We are waiting to hear back from the spring chairs as to the wg st=
atus of the local replication draft of which your draft is dependent. So pl=
ease hold off on submitting the new draft-ietf-pim-sr-p2mp-policy until the=
y give us the green light.&quot;<BR>
&gt;<BR>
&gt; Does this answer your question?<BR>
&gt;<BR>
&gt; --Bruno<BR>
&gt;<BR>
&gt; &gt; Thanks!<BR>
&gt; &gt; Dhruv<BR>
&gt; &gt;<BR>
&gt; &gt; [1] <BR>
&gt; &gt; <a href=3D"https://clicktime.symantec.com/36sxrNPFssiaB8jE9mzzZDd=
6H2?u=3Dhttps%3A" target=3D"_blank">https://clicktime.symantec.com/36sxrNPF=
ssiaB8jE9mzzZDd6H2?u=3Dhttps%3A</a><BR>
&gt; &gt; %2F%2Fdatatracker.ietf.org%2Fdoc%2Fdraft-voyer-pim-sr-p2mp-policy=
%2F<BR>
&gt; &gt; [2]<BR>
&gt; &gt; <a href=3D"https://clicktime.symantec.com/3LtBxbxRK3NkuKYc3FC7rr4=
6H2?u=3Dhttps%3A" target=3D"_blank">https://clicktime.symantec.com/3LtBxbxR=
K3NkuKYc3FC7rr46H2?u=3Dhttps%3A</a><BR>
&gt; &gt; %2F%2Fmailarchive.ietf.org%2Farch%2Fmsg%2Fpim%2FYyF7I02aaRtpZngf7=
uTn<BR>
&gt; &gt; o69IB90%2F<BR>
&gt; &gt;<BR>
&gt; &gt;<BR>
&gt; &gt;<BR>
&gt; &gt; On Thu, Jul 2, 2020 at 12:05 PM Rishabh Parekh &lt;rishabhp@gmail=
.com&gt;<BR>
&gt; &gt; wrote:<BR>
&gt; &gt; &gt;<BR>
&gt; &gt; &gt; Jeff,<BR>
&gt; &gt; &gt; Your explanation of distinct Transport SIDs and service labe=
ls <BR>
&gt; &gt; &gt; (which appear at BoS) applies to Point-to-Point services. Sa=
me <BR>
&gt; &gt; &gt; model can be applied when a Point-to-Multipoint service is <=
BR>
&gt; &gt; &gt; realized by one end-to-end replication segment; &quot;Downst=
ream <BR>
&gt; &gt; &gt; Replication SID&quot; as specified in draft is effectively t=
he service <BR>
&gt; &gt; &gt; label at a specific downstream node of a Replication segment=
 with <BR>
&gt; &gt; &gt; Transport SIDs imposed on top to take replicated packet to t=
hat node.<BR>
&gt; &gt; &gt;<BR>
&gt; &gt; &gt; However, when a Point-to-Multipoint service is over replicat=
ion <BR>
&gt; &gt; &gt; segments stitched together to form a P2MP tree, as described=
 in <BR>
&gt; &gt; &gt; PIM WG draft, this model no longer holds since all service e=
gress <BR>
&gt; &gt; &gt; nodes would have to agree on one common service label. So  P=
2MP <BR>
&gt; &gt; &gt; services implicitly map the P2MP transport label (Replicatio=
n SID <BR>
&gt; &gt; &gt; at BoS in this case) to the P2MP service. Of course, this im=
plies <BR>
&gt; &gt; &gt; one-to-one association between a P2MP service and a P2MP <BR=
>
&gt; &gt; &gt; transport. There are techniques to share one P2MP transport =
across <BR>
&gt; &gt; &gt; different P2MP services using either upstream assigned label=
 or a <BR>
&gt; &gt; &gt; global context from &quot;Domain-wide Common Block&quot;<BR>
&gt; &gt; &gt; (draft-ietf-bess-mvpn-evpn-aggregation-label). These and oth=
er <BR>
&gt; &gt; &gt; gory details are described in Section 2 of PIM WG draft and =
to <BR>
&gt; &gt; &gt; some extent in BESS MVPN-EVPN draft.<BR>
&gt; &gt; &gt;<BR>
&gt; &gt; &gt; -Rishabh<BR>
&gt; &gt; &gt;<BR>
&gt; &gt; &gt; On Wed, Jul 1, 2020 at 5:50 PM Jeff Tantsura <BR>
&gt; &gt; &gt; &lt;jefftant.ietf@gmail.com&gt;<BR>
&gt; &gt; wrote:<BR>
&gt; &gt; &gt; &gt;<BR>
&gt; &gt; &gt; &gt; Rishabh,<BR>
&gt; &gt; &gt; &gt;<BR>
&gt; &gt; &gt; &gt; Transport SID with a service on top can=E2=80=99t be a =
BoS label, <BR>
&gt; &gt; &gt; &gt; there=E2=80=99s s service<BR>
&gt; &gt; label below, since a service is associated with a particular node=
, <BR>
&gt; &gt; there would be at least a N-SID associated with the service node.=
<BR>
&gt; &gt; &gt; &gt; It seems like B-SID behavior is the correct one, when R=
-SID is <BR>
&gt; &gt; &gt; &gt; looked up<BR>
&gt; &gt; and popped, it would yield: replication  (as programmed by a <BR>
&gt; &gt; controller, since there=E2=80=99s no state) + new label stack ass=
ociated <BR>
&gt; &gt; with the new, post replication/branching path that is imposed on =
top <BR>
&gt; &gt; of existing label stack, so service label ( + optionally more tra=
nsport labels) are preserved.<BR>
&gt; &gt; &gt; &gt;<BR>
&gt; &gt; &gt; &gt; Cheers,<BR>
&gt; &gt; &gt; &gt; Jeff<BR>
&gt; &gt; &gt; &gt; On Jul 1, 2020, 12:40 PM -0700, Rishabh Parekh <BR>
&gt; &gt; &gt; &gt; &lt;rishabhp@gmail.com&gt;,<BR>
&gt; &gt; wrote:<BR>
&gt; &gt; &gt; &gt;<BR>
&gt; &gt; &gt; &gt; Robert,<BR>
&gt; &gt; &gt; &gt;<BR>
&gt; &gt; &gt; &gt; A) Firmly state that replication SID MUST be the last o=
ne on the <BR>
&gt; &gt; &gt; &gt; stack<BR>
&gt; &gt; &gt; &gt; B) Instead of real SID after the replication SID provid=
e a <BR>
&gt; &gt; &gt; &gt; binding SID which<BR>
&gt; &gt; locally will be mapped to a different SID list imposed to each re=
plicated flow.<BR>
&gt; &gt; &gt; &gt;<BR>
&gt; &gt; &gt; &gt;<BR>
&gt; &gt; &gt; &gt; We would be fine with A), but we don't want to exclude =
<BR>
&gt; &gt; &gt; &gt; possibility of something like what you describe in B.<B=
R>
&gt; &gt; &gt; &gt;<BR>
&gt; &gt; &gt; &gt; -Rishabh<BR>
&gt; &gt; &gt; &gt;<BR>
&gt; &gt; &gt; &gt; On Wed, Jul 1, 2020 at 12:27 PM Robert Raszuk <BR>
&gt; &gt; &gt; &gt; &lt;robert@raszuk.net&gt;<BR>
&gt; &gt; wrote:<BR>
&gt; &gt; &gt; &gt;<BR>
&gt; &gt; &gt; &gt;<BR>
&gt; &gt; &gt; &gt; Hi Rishabh,<BR>
&gt; &gt; &gt; &gt;<BR>
&gt; &gt; &gt; &gt; Of course, care must be<BR>
&gt; &gt; &gt; &gt; taken to avoid the &quot;explosion&quot; as you describ=
e it. G-SID-2 has <BR>
&gt; &gt; &gt; &gt; to map to a unique node; for example, it may be an Anyc=
ast-SID <BR>
&gt; &gt; &gt; &gt; that takes packet to distinct nodes from each of the do=
wnstream <BR>
&gt; &gt; &gt; &gt; node, or the downstream nodes can be border nodes conne=
cting to <BR>
&gt; &gt; &gt; &gt; other segment routing domains where G-SID-2 resolves to=
 distinct <BR>
&gt; &gt; &gt; &gt; nodes in each domain.<BR>
&gt; &gt; &gt; &gt;<BR>
&gt; &gt; &gt; &gt;<BR>
&gt; &gt; &gt; &gt; I think you are stretching it too thin.<BR>
&gt; &gt; &gt; &gt;<BR>
&gt; &gt; &gt; &gt; See even if G-SID-2 is anycast SID you have zero assura=
nce that <BR>
&gt; &gt; &gt; &gt; physical<BR>
&gt; &gt; nodes packets will land on would be at all diverse.<BR>
&gt; &gt; &gt; &gt;<BR>
&gt; &gt; &gt; &gt; Likewise crossing domains yet providing identical globa=
l SID now <BR>
&gt; &gt; &gt; &gt; to be a<BR>
&gt; &gt; different node in each such domain to me is not a realistic examp=
le.<BR>
&gt; &gt; &gt; &gt;<BR>
&gt; &gt; &gt; &gt; I think we have two options:<BR>
&gt; &gt; &gt; &gt;<BR>
&gt; &gt; &gt; &gt; A) Firmly state that replication SID MUST be the last o=
ne on the <BR>
&gt; &gt; &gt; &gt; stack<BR>
&gt; &gt; &gt; &gt;<BR>
&gt; &gt; &gt; &gt; B) Instead of real SID after the replication SID provid=
e a <BR>
&gt; &gt; &gt; &gt; binding SID which<BR>
&gt; &gt; locally will be mapped to a different SID list imposed to each re=
plicated flow.<BR>
&gt; &gt; &gt; &gt;<BR>
&gt; &gt; &gt; &gt; What is currently in the draft seems to be very counter=
intuitive <BR>
&gt; &gt; &gt; &gt; and IMHO<BR>
&gt; &gt; will result in operational difficulties.<BR>
&gt; &gt; &gt; &gt;<BR>
&gt; &gt; &gt; &gt; Thx a lot,<BR>
&gt; &gt; &gt; &gt; R.<BR>
&gt; &gt; &gt; &gt;<BR>
&gt; &gt; &gt; &gt;<BR>
&gt; &gt; &gt; &gt; _______________________________________________<BR>
&gt; &gt; &gt; &gt; spring mailing list<BR>
&gt; &gt; &gt; &gt; <a href=3D"mailto:spring@ietf.org">spring@ietf.org</a><=
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From: Rishabh Parekh <rishabhp@gmail.com>
Date: Tue, 7 Jul 2020 08:42:17 -0700
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To: bruno.decraene@orange.com
Cc: Dhruv Dhody <dhruv.ietf@gmail.com>, "spring@ietf.org" <spring@ietf.org>
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Subject: Re: [spring] Understanding the replication draft
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>> Reading the I-D and based on the discussion on this thread I believe
>> more description is required. As Joel pointed out, clarity on what is
>> legal/illegal (or out of scope for now) is needed.

>I leave this for the authors to reply.

We are working onthe  next revision of the draft that will clarify
some text and illustrate and example. We shall post it soon.

-Rishabh

On Tue, Jul 7, 2020 at 2:42 AM <bruno.decraene@orange.com> wrote:
>
> Hi Dhruv,
>
> > -----Original Message-----
> > From: spring [mailto:spring-bounces@ietf.org] On Behalf Of Dhruv Dhody
> > Subject: Re: [spring] Understanding the replication draft
> >
> > Hi WG,
> >
> > Reading the I-D and based on the discussion on this thread I believe
> > more description is required. As Joel pointed out, clarity on what is
> > legal/illegal (or out of scope for now) is needed.
>
> I leave this for the authors to reply.
>
> > I have no strong opinion if that needs to be done before or after adopt=
ion!
> >
> > I do not follow PIM closely and just realized that the SR P2MP Policy
> > in the PIM I-D [1] is adopted by the PIM WG, but not yet posted [2].
> > I wanted to make sure that it has been decided that PIM is the right
> > place to define SR P2MP policy (discussed either in the WG and/or
> > between chairs/AD)?
>
> draft-voyer-pim-sr-p2mp-policy-00 is to be worked in the PIM WG.
> The PIM WG is waiting for the SPRING WG to adopt draft-voyer-spring-sr-re=
plication-segment, since the -pim- document has a dependency on the -spring=
- document.
>
> Quoting the PIM chairs: "We have solid support to adopt this draft. [...]=
 We are waiting to hear back from the spring chairs as to the wg status of =
the local replication draft of which your draft is dependent. So please hol=
d off on submitting the new draft-ietf-pim-sr-p2mp-policy until they give u=
s the green light."
>
> Does this answer your question?
>
> --Bruno
>
> > Thanks!
> > Dhruv
> >
> > [1] https://datatracker.ietf.org/doc/draft-voyer-pim-sr-p2mp-policy/
> > [2]
> > https://mailarchive.ietf.org/arch/msg/pim/YyF7I02aaRtpZngf7uTno69IB90/
> >
> >
> >
> > On Thu, Jul 2, 2020 at 12:05 PM Rishabh Parekh <rishabhp@gmail.com>
> > wrote:
> > >
> > > Jeff,
> > > Your explanation of distinct Transport SIDs and service labels (which
> > > appear at BoS) applies to Point-to-Point services. Same model can be
> > > applied when a Point-to-Multipoint service is realized by one
> > > end-to-end replication segment; "Downstream Replication SID" as
> > > specified in draft is effectively the service label at a specific
> > > downstream node of a Replication segment with Transport SIDs imposed
> > > on top to take replicated packet to that node.
> > >
> > > However, when a Point-to-Multipoint service is over replication
> > > segments stitched together to form a P2MP tree, as described in PIM W=
G
> > > draft, this model no longer holds since all service egress nodes woul=
d
> > > have to agree on one common service label. So  P2MP services
> > > implicitly map the P2MP transport label (Replication SID at BoS in
> > > this case) to the P2MP service. Of course, this implies one-to-one
> > > association between a P2MP service and a P2MP transport. There are
> > > techniques to share one P2MP transport across different P2MP services
> > > using either upstream assigned label or a global context from
> > > "Domain-wide Common Block"
> > > (draft-ietf-bess-mvpn-evpn-aggregation-label). These and other gory
> > > details are described in Section 2 of PIM WG draft and to some extent
> > > in BESS MVPN-EVPN draft.
> > >
> > > -Rishabh
> > >
> > > On Wed, Jul 1, 2020 at 5:50 PM Jeff Tantsura <jefftant.ietf@gmail.com=
>
> > wrote:
> > > >
> > > > Rishabh,
> > > >
> > > > Transport SID with a service on top can=E2=80=99t be a BoS label, t=
here=E2=80=99s s service
> > label below, since a service is associated with a particular node, ther=
e would
> > be at least a N-SID associated with the service node.
> > > > It seems like B-SID behavior is the correct one, when R-SID is look=
ed up
> > and popped, it would yield: replication  (as programmed by a controller=
, since
> > there=E2=80=99s no state) + new label stack associated with the new, po=
st
> > replication/branching path that is imposed on top of existing label sta=
ck, so
> > service label ( + optionally more transport labels) are preserved.
> > > >
> > > > Cheers,
> > > > Jeff
> > > > On Jul 1, 2020, 12:40 PM -0700, Rishabh Parekh <rishabhp@gmail.com>=
,
> > wrote:
> > > >
> > > > Robert,
> > > >
> > > > A) Firmly state that replication SID MUST be the last one on the st=
ack
> > > > B) Instead of real SID after the replication SID provide a binding =
SID which
> > locally will be mapped to a different SID list imposed to each replicat=
ed flow.
> > > >
> > > >
> > > > We would be fine with A), but we don't want to exclude possibility =
of
> > > > something like what you describe in B.
> > > >
> > > > -Rishabh
> > > >
> > > > On Wed, Jul 1, 2020 at 12:27 PM Robert Raszuk <robert@raszuk.net>
> > wrote:
> > > >
> > > >
> > > > Hi Rishabh,
> > > >
> > > > Of course, care must be
> > > > taken to avoid the "explosion" as you describe it. G-SID-2 has to m=
ap
> > > > to a unique node; for example, it may be an Anycast-SID that takes
> > > > packet to distinct nodes from each of the downstream node, or the
> > > > downstream nodes can be border nodes connecting to other segment
> > > > routing domains where G-SID-2 resolves to distinct nodes in each
> > > > domain.
> > > >
> > > >
> > > > I think you are stretching it too thin.
> > > >
> > > > See even if G-SID-2 is anycast SID you have zero assurance that phy=
sical
> > nodes packets will land on would be at all diverse.
> > > >
> > > > Likewise crossing domains yet providing identical global SID now to=
 be a
> > different node in each such domain to me is not a realistic example.
> > > >
> > > > I think we have two options:
> > > >
> > > > A) Firmly state that replication SID MUST be the last one on the st=
ack
> > > >
> > > > B) Instead of real SID after the replication SID provide a binding =
SID which
> > locally will be mapped to a different SID list imposed to each replicat=
ed flow.
> > > >
> > > > What is currently in the draft seems to be very counterintuitive an=
d IMHO
> > will result in operational difficulties.
> > > >
> > > > Thx a lot,
> > > > R.
> > > >
> > > >
> > > > _______________________________________________
> > > > spring mailing list
> > > > spring@ietf.org
> > > > https://www.ietf.org/mailman/listinfo/spring
> > >
> > > _______________________________________________
> > > spring mailing list
> > > spring@ietf.org
> > > https://www.ietf.org/mailman/listinfo/spring
> >
> > _______________________________________________
> > spring mailing list
> > spring@ietf.org
> > https://www.ietf.org/mailman/listinfo/spring
>
> _________________________________________________________________________=
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From nobody Tue Jul  7 09:20:29 2020
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From: Joel Halpern <jmh@joelhalpern.com>
To: "spring@ietf.org" <spring@ietf.org>, "bruno.decraene@orange.com" <bruno.decraene@orange.com>
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Subject: [spring] Draft design team charge
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Having gotten various volunteers, and considered what the WG needs, the 
SPRING chairs have selected the design team for clarifying the SR over 
IPv6 compression situation.

The Design team will be
Co-Chaired by:
     Cheng Weiqiang of China Telecom and
     Sanders Steffann of SJM Steffann Consultancy

The other members of the team are:
     Ron Bonica of Juniper
     Darren Dukes of Cisco
     Cheng Li of Huawei
     Peng Shaofu of ZTE and
     Wim Henderickx of Nokia
     Chongfeng Xie of China Telecom

(We understand that some members may be on vacation.  We ask the chairs 
to please get the design team up and running as fast as possible, and 
deal with vacations as necessary.)

The design team is to produce (rough) consensus recommendations to the 
WG on two related topics:
1) What are the requirements for solutions to compressing segment 
routing information for use over IPv6
2) A comparison of proposed approaches to compressing segment routing 
information for use over IPv6

In both cases, assertions / requirements should be explicitly explained 
and motivated.  Please do not assume that everyone has the same perspective.

We expect these results to take the form of Internet Drafts.  How the 
design team does the development is up to them.  Note that while we are 
asking for I-Ds, we are not assuming that these results will be 
published as RFCs.  When the working group has progressed, we will see 
if there is agreement as to the value of long term publication of this 
material.
Also, as a reminder to both the design team and the working group, the 
design team output is input to the working group.  It is not presumed to 
be a WG document until the WG actually adopts it.

If the design team has insights into the number of solutions (are 
several already standardized?  is there value in picking one / some?) 
this may be included in the requirements readout.  If the design team 
can not agree, or does not think it is helpful to report this aspect, 
that is also acceptable to the chairs.

While the chairs would like to see prompt work, we also want to see a 
thorough job done on this task.  As such, we value quality of result 
over time.  While there is some pressure, we ask that the design team 
focus on reaching clear and useful agreements.  Thus, we are not asking 
for any readout by IETF 108.

If the design team makes enough progress that they have questions they 
would like the WG to discuss at IETF 108, please let us know.

Yours,
Bruno, Jim, and Joel


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Subject: Re: [spring] Draft design team charge
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Sorry folks.  This is the wrong version.  I will resend in a moment. 
The important error is that it has the wrong affiliation for Cheng 
Weiqiang, for which I sincerely apologize.

Yours,
Joel

On 7/7/2020 12:20 PM, Joel Halpern wrote:
> Having gotten various volunteers, and considered what the WG needs, the 
> SPRING chairs have selected the design team for clarifying the SR over 
> IPv6 compression situation.
> 
> The Design team will be
> Co-Chaired by:
>  Â Â Â  Cheng Weiqiang of China Telecom and
>  Â Â Â  Sanders Steffann of SJM Steffann Consultancy
> 
> The other members of the team are:
>  Â Â Â  Ron Bonica of Juniper
>  Â Â Â  Darren Dukes of Cisco
>  Â Â Â  Cheng Li of Huawei
>  Â Â Â  Peng Shaofu of ZTE and
>  Â Â Â  Wim Henderickx of Nokia
>  Â Â Â  Chongfeng Xie of China Telecom
> 
> (We understand that some members may be on vacation.Â  We ask the chairs 
> to please get the design team up and running as fast as possible, and 
> deal with vacations as necessary.)
> 
> The design team is to produce (rough) consensus recommendations to the 
> WG on two related topics:
> 1) What are the requirements for solutions to compressing segment 
> routing information for use over IPv6
> 2) A comparison of proposed approaches to compressing segment routing 
> information for use over IPv6
> 
> In both cases, assertions / requirements should be explicitly explained 
> and motivated.Â  Please do not assume that everyone has the same 
> perspective.
> 
> We expect these results to take the form of Internet Drafts.Â  How the 
> design team does the development is up to them.Â  Note that while we are 
> asking for I-Ds, we are not assuming that these results will be 
> published as RFCs.Â  When the working group has progressed, we will see 
> if there is agreement as to the value of long term publication of this 
> material.
> Also, as a reminder to both the design team and the working group, the 
> design team output is input to the working group.Â  It is not presumed to 
> be a WG document until the WG actually adopts it.
> 
> If the design team has insights into the number of solutions (are 
> several already standardized?Â  is there value in picking one / some?) 
> this may be included in the requirements readout.Â  If the design team 
> can not agree, or does not think it is helpful to report this aspect, 
> that is also acceptable to the chairs.
> 
> While the chairs would like to see prompt work, we also want to see a 
> thorough job done on this task.Â  As such, we value quality of result 
> over time.Â  While there is some pressure, we ask that the design team 
> focus on reaching clear and useful agreements.Â  Thus, we are not asking 
> for any readout by IETF 108.
> 
> If the design team makes enough progress that they have questions they 
> would like the WG to discuss at IETF 108, please let us know.
> 
> Yours,
> Bruno, Jim, and Joel
> 
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
Th


From nobody Tue Jul  7 09:24:11 2020
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From: Joel Halpern <jmh@joelhalpern.com>
To: "spring@ietf.org" <spring@ietf.org>
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Subject: [spring] Final? design team charge
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Having gotten various volunteers, and considered what the WG needs, the 
SPRING chairs have selected the design team for clarifying the SR over 
IPv6 compression situation.

The Design team will be
Co-Chaired by:
     Cheng Weiqiang of China Mobile and
     Sanders Steffann of SJM Steffann Consultancy

The other members of the team are:
     Ron Bonica of Juniper
     Darren Dukes of Cisco
     Cheng Li of Huawei
     Peng Shaofu of ZTE
     Wim Henderickx of Nokia
     Chongfeng Xie of China Telecom

(We understand that some members may be on vacation.  We ask the chairs 
to please get the design team up and running as fast as possible, and 
deal with vacations as necessary.)

The design team is to produce (rough) consensus (of the DT) outputs to 
the WG on two related topics:
1) What are the requirements for solutions to compressing segment 
routing information for use over IPv6;
2) A comparison of proposed approaches to compressing segment routing 
information for use over IPv6.

In both cases, assertions / requirements should be explicitly explained 
and motivated.  Please do not assume that everyone has the same 
perspective or assumptions.

We expect these results to take the form of Internet Drafts.  How the 
design team does the development is up to them.  Note that while we are 
asking for I-Ds, we are not assuming that these results will be 
published as RFCs.  When the working group has progressed, we will see 
if there is agreement as to the value of long term publication of this 
material.
Also, as a reminder to both the design team and the working group, the 
design team output is input to the working group.  It is not presumed to 
be a WG document until the WG actually adopts it.

If the design team has insights into the number of solutions (are 
several already standardized?  is there value in picking one / some?) 
this may be included in the requirements readout.  If the design team 
can not agree, or does not think it is helpful to report this aspect, 
that is also acceptable to the chairs.

While the chairs would like to see prompt work, we also want to see a 
thorough job done on this task.  As such, we value quality of result 
over time.  While there is some pressure, we ask that the design team 
focus on reaching clear and useful agreements.  Thus, we are not asking 
for any readout by IETF 108.  As a target, we would like to see a draft 
to the WG by September 15, 2020.

If the design team makes enough progress that they have questions they 
would like the WG to discuss at IETF 108, please let us know.

Yours,
Bruno, Jim, and Joel


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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/shN90DgenLgg76BVziksHz1aZd0>
Subject: Re: [spring] [Lsr] clarification of END Point behavior in draft-ietf-spring-srv6-network-programming
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Hi Parag,

Yes, it can be the last SID. When SL=3D0 you ignore the SRH and process the=
 next header in the header chain. Upper-layer header processing is defined =
in 4.1.1.
If you would like to remove the SRH with the End behavior you can use PSP, =
USP or USD flavors to do so.

Regards,
Pablo.

From: spring <spring-bounces@ietf.org> On Behalf Of Parag Kaneriya
Sent: lunes, 6 de julio de 2020 11:17
To: lsr@ietf.org; SPRING WG <spring@ietf.org>
Subject: Re: [spring] [Lsr] clarification of END Point behavior in draft-ie=
tf-spring-srv6-network-programming

Hello,

I am going through recent draft https://tools.ietf.org/pdf/draft-ietf-sprin=
g-srv6-network-programming-16.pdf

Changes are follow ,

4.1. End: Endpoint

S01. When an SRH is processed {
S02. If (Segments Left =3D=3D 0) {
S03. Proceed to process the next header in the packet, whose type is identi=
fied by the Next Header field in the routing header.
S04. }
S05. If (IPv6 Hop Limit <=3D 1) {
S06. Send an ICMP Time Exceeded message to the Source Address, Code 0 (Hop =
limit exceeded in transit), Interrupt packet processing and discard
     the packet.
S07. }


With these change, I have below few question


  1.  Can END SID can be last SID of the SID list ?   earlier draft (not su=
re which version), it was explicitly mentioned that last SID can't be END s=
id ( Most basic flavors ).
  2.  IF yes then When/Who will remove the SRH header when last sid is END =
SID in the sid list.

Regards
Parag


Juniper Business Use Only

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<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-fareast-language:E=
N-US">Hi Parag,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-fareast-language:E=
N-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-fareast-language:E=
N-US">Yes, it can be the last SID. When SL=3D0 you ignore the SRH and proce=
ss the next header in the header chain. Upper-layer header processing is de=
fined in 4.1.1.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-fareast-language:E=
N-US">If you would like to remove the SRH with the End behavior you can use=
 PSP, USP or USD flavors to do so.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-fareast-language:E=
N-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-fareast-language:E=
N-US">Regards,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-fareast-language:E=
N-US">Pablo.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-fareast-language:E=
N-US"><o:p>&nbsp;</o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US">From:</span></b><span lang=
=3D"EN-US"> spring &lt;spring-bounces@ietf.org&gt;
<b>On Behalf Of </b>Parag Kaneriya<br>
<b>Sent:</b> lunes, 6 de julio de 2020 11:17<br>
<b>To:</b> lsr@ietf.org; SPRING WG &lt;spring@ietf.org&gt;<br>
<b>Subject:</b> Re: [spring] [Lsr] clarification of END Point behavior in d=
raft-ietf-spring-srv6-network-programming<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:12.5pt;font-=
family:&quot;Courier New&quot;">Hello,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:12.5pt;font-=
family:&quot;Courier New&quot;"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:12.5pt;font-=
family:&quot;Courier New&quot;">I am going through recent draft</span><span=
 lang=3D"EN-US">
</span><a href=3D"https://tools.ietf.org/pdf/draft-ietf-spring-srv6-network=
-programming-16.pdf"><span lang=3D"EN-US">https://tools.ietf.org/pdf/draft-=
ietf-spring-srv6-network-programming-16.pdf</span></a><span lang=3D"EN-US">=
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:12.5pt;font-=
family:&quot;Courier New&quot;">Changes are follow ,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:12.5pt;font-=
family:&quot;Courier New&quot;">4.1. End: Endpoint<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:12.5pt;font-=
family:&quot;Courier New&quot;">S01. When an SRH is processed {
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:12.5pt;font-=
family:&quot;Courier New&quot;">S02. If (Segments Left =3D=3D 0) {
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:12.5pt;font-=
family:&quot;Courier New&quot;">S03. Proceed to process the next header in =
the packet, whose type is identified by the Next Header field in the routin=
g header.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:12.5pt;font-=
family:&quot;Courier New&quot;">S04. }
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:12.5pt;font-=
family:&quot;Courier New&quot;">S05. If (IPv6 Hop Limit &lt;=3D 1) {
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:12.5pt;font-=
family:&quot;Courier New&quot;">S06. Send an ICMP Time Exceeded message to =
the Source Address, Code 0 (Hop limit exceeded in transit), Interrupt packe=
t processing and discard &nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:12.5pt;font-=
family:&quot;Courier New&quot;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;the packet.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:12.5pt;font-=
family:&quot;Courier New&quot;">S07. }<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:12.5pt;font-=
family:&quot;Courier New&quot;"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:12.5pt;font-=
family:&quot;Courier New&quot;"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:12.5pt;font-=
family:&quot;Courier New&quot;">With these change, I have below few questio=
n<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:12.5pt;font-=
family:&quot;Courier New&quot;"><o:p>&nbsp;</o:p></span></p>
<ol style=3D"margin-top:0cm" start=3D"1" type=3D"1">
<li class=3D"MsoListParagraph" style=3D"margin-left:0cm;mso-list:l0 level1 =
lfo3"><span lang=3D"EN-US" style=3D"font-size:12.5pt;font-family:&quot;Cour=
ier New&quot;">Can END SID can be last SID of the SID list ?&nbsp; &nbsp;ea=
rlier draft (not sure which version), it was explicitly mentioned
 that last SID can&#8217;t be END sid ( Most basic flavors ).<o:p></o:p></s=
pan></li><li class=3D"MsoListParagraph" style=3D"margin-left:0cm;mso-list:l=
0 level1 lfo3"><span lang=3D"EN-US" style=3D"font-size:12.5pt;font-family:&=
quot;Courier New&quot;">IF yes then When/Who will remove the SRH header whe=
n last sid is END SID in the sid list.
<o:p></o:p></span></li></ol>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:12.5pt;font-=
family:&quot;Courier New&quot;"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:12.5pt;font-=
family:&quot;Courier New&quot;">Regards<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:12.5pt;font-=
family:&quot;Courier New&quot;">Parag<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"margin:0cm;margin=
-bottom:.0001pt;text-align:center">
<span lang=3D"EN-US" style=3D"font-size:7.0pt;color:black">Juniper Business=
 Use Only</span><span lang=3D"EN-US"><o:p></o:p></span></p>
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To: Joel Halpern <jmh@joelhalpern.com>, "spring@ietf.org" <spring@ietf.org>
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From: Sander Steffann <sander@steffann.nl>
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Organization: Solcon Internetdiensten
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Date: Tue, 7 Jul 2020 23:09:38 +0200
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Subject: Re: [spring] Final? design team charge
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Hi Joel,

On 07-07-2020 18:24, Joel Halpern wrote:
> The Design team will be
> Co-Chaired by:
> =C2=A0=C2=A0=C2=A0 Cheng Weiqiang of China Mobile and
> =C2=A0=C2=A0=C2=A0 Sanders Steffann of SJM Steffann Consultancy

Minor typo in my first name (Sander) but no harm done :)

> The other members of the team are:
> =C2=A0=C2=A0=C2=A0 Ron Bonica of Juniper
> =C2=A0=C2=A0=C2=A0 Darren Dukes of Cisco
> =C2=A0=C2=A0=C2=A0 Cheng Li of Huawei
> =C2=A0=C2=A0=C2=A0 Peng Shaofu of ZTE
> =C2=A0=C2=A0=C2=A0 Wim Henderickx of Nokia
> =C2=A0=C2=A0=C2=A0 Chongfeng Xie of China Telecom

Is there any requirement on how to organize this team? Would the WG
Chairs and ADs like to see an archived mailing list of the discussions,
or is that entirely up to us?

In any case: hello team! Please reply to me off-list with the email
address you would like to use for design team discussions so I know how
to reach you.

Cheers,
Sander


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Date: Tue, 7 Jul 2020 14:15:49 -0700
From: Jeff Tantsura <jefftant.ietf@gmail.com>
To: Dhruv Dhody <dhruv.ietf@gmail.com>,  "=?utf-8?Q?bruno.decraene=40orange.com?=" <bruno.decraene@orange.com>,  Alexander Vainshtein <Alexander.Vainshtein@rbbn.com>
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Subject: Re: [spring] Understanding the replication draft
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--5f04e60e_555c55b5_11d67
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Thanks Rishabh=21
+1 to the above comments and looking forward to the updated draft.

Cheers,
Jeff
On Jul 7, 2020, 7:35 AM -0700, Alexander Vainshtein <Alexander.Vainshtein=
=40rbbn.com>, wrote:
> Dhruv, Bruno and all,
> Regarding the statement =22 What is missing in the spring I-D is some v=
ery high level discussion in terms of architecture on how replication seg=
ment and SR P2MP policy come together=22 - I cannot agree more.
>
> My 2c,
> Sasha
>
> Office: +972-39266302
> Cell: +972-549266302
> Email: Alexander.Vainshtein=40ecitele.com
>
>
> -----Original Message-----
> =46rom: spring <spring-bounces=40ietf.org> On Behalf Of Dhruv Dhody
> Sent: Tuesday, July 7, 2020 1:02 PM
> To: bruno.decraene=40orange.com
> Cc: spring=40ietf.org
> Subject: Re: =5Bspring=5D Understanding the replication draft
>
> Hi Bruno,
>
> Yes, thanks=21 I was just making sure that we have an agreement that PI=
M is the right place to define SR P2MP Policy.
>
> What is missing in the spring I-D is some very high level discussion in=
 terms of architecture on how replication segment and SR P2MP policy come=
 together. The current I-D tries to define a replication segment as an in=
dependent entity that could be used on its own but it makes it difficult =
to visualize without some high level text or an example.
>
> Thanks=21
> Dhruv
>
> On Tue, Jul 7, 2020 at 3:12 PM <bruno.decraene=40orange.com> wrote:
> >
> > Hi Dhruv,
> >
> > > -----Original Message-----
> > > =46rom: spring =5Bmailto:spring-bounces=40ietf.org=5D On Behalf Of =
Dhruv
> > > Dhody
> > > Subject: Re: =5Bspring=5D Understanding the replication draft
> > >
> > > Hi WG,
> > >
> > > Reading the I-D and based on the discussion on this thread I believ=
e
> > > more description is required. As Joel pointed out, clarity on what
> > > is legal/illegal (or out of scope for now) is needed.
> >
> > I leave this for the authors to reply.
> >
> > > I have no strong opinion if that needs to be done before or after a=
doption=21
> > >
> > > I do not follow PIM closely and just realized that the SR P2MP
> > > Policy in the PIM I-D =5B1=5D is adopted by the PIM WG, but not yet=
 posted =5B2=5D.
> > > I wanted to make sure that it has been decided that PIM is the righ=
t
> > > place to define SR P2MP policy (discussed either in the WG and/or
> > > between chairs/AD)=3F
> >
> > draft-voyer-pim-sr-p2mp-policy-00 is to be worked in the PIM WG.
> > The PIM WG is waiting for the SPRING WG to adopt draft-voyer-spring-s=
r-replication-segment, since the -pim- document has a dependency on the -=
spring- document.
> >
> > Quoting the PIM chairs: =22We have solid support to adopt this draft.=
 =5B...=5D We are waiting to hear back from the spring chairs as to the w=
g status of the local replication draft of which your draft is dependent.=
 So please hold off on submitting the new draft-ietf-pim-sr-p2mp-policy u=
ntil they give us the green light.=22
> >
> > Does this answer your question=3F
> >
> > --Bruno
> >
> > > Thanks=21
> > > Dhruv
> > >
> > > =5B1=5D
> > > https://clicktime.symantec.com/36sxrNP=46ssiaB8jE9mzzZDd6H2=3Fu=3Dh=
ttps%3A
> > > %2=46%2=46datatracker.ietf.org%2=46doc%2=46draft-voyer-pim-sr-p2mp-=
policy%2=46
> > > =5B2=5D
> > > https://clicktime.symantec.com/3LtBxbxRK3NkuKYc3=46C7rr46H2=3Fu=3Dh=
ttps%3A
> > > %2=46%2=46mailarchive.ietf.org%2=46arch%2=46msg%2=46pim%2=46Yy=467I=
02aaRtpZngf7uTn
> > > o69IB90%2=46
> > >
> > >
> > >
> > > On Thu, Jul 2, 2020 at 12:05 PM Rishabh Parekh <rishabhp=40gmail..c=
om>
> > > wrote:
> > > >
> > > > Jeff,
> > > > Your explanation of distinct Transport SIDs and service labels
> > > > (which appear at BoS) applies to Point-to-Point services. Same
> > > > model can be applied when a Point-to-Multipoint service is
> > > > realized by one end-to-end replication segment; =22Downstream
> > > > Replication SID=22 as specified in draft is effectively the servi=
ce
> > > > label at a specific downstream node of a Replication segment with=

> > > > Transport SIDs imposed on top to take replicated packet to that n=
ode.
> > > >
> > > > However, when a Point-to-Multipoint service is over replication
> > > > segments stitched together to form a P2MP tree, as described in
> > > > PIM WG draft, this model no longer holds since all service egress=

> > > > nodes would have to agree on one common service label. So P2MP
> > > > services implicitly map the P2MP transport label (Replication SID=

> > > > at BoS in this case) to the P2MP service. Of course, this implies=

> > > > one-to-one association between a P2MP service and a P2MP
> > > > transport. There are techniques to share one P2MP transport acros=
s
> > > > different P2MP services using either upstream assigned label or a=

> > > > global context from =22Domain-wide Common Block=22
> > > > (draft-ietf-bess-mvpn-evpn-aggregation-label). These and other
> > > > gory details are described in Section 2 of PIM WG draft and to
> > > > some extent in BESS MVPN-EVPN draft.
> > > >
> > > > -Rishabh
> > > >
> > > > On Wed, Jul 1, 2020 at 5:50 PM Jeff Tantsura
> > > > <jefftant.ietf=40gmail.com>
> > > wrote:
> > > > >
> > > > > Rishabh,
> > > > >
> > > > > Transport SID with a service on top can=E2=80=99t be a BoS labe=
l,
> > > > > there=E2=80=99s s service
> > > label below, since a service is associated with a particular node,
> > > there would be at least a N-SID associated with the service node.
> > > > > It seems like B-SID behavior is the correct one, when R-SID is
> > > > > looked up
> > > and popped, it would yield: replication (as programmed by a
> > > controller, since there=E2=80=99s no state) + new label stack assoc=
iated
> > > with the new, post replication/branching path that is imposed on to=
p
> > > of existing label stack, so service label ( + optionally more trans=
port labels) are preserved.
> > > > >
> > > > > Cheers,
> > > > > Jeff
> > > > > On Jul 1, 2020, 12:40 PM -0700, Rishabh Parekh
> > > > > <rishabhp=40gmail.com>,
> > > wrote:
> > > > >
> > > > > Robert,
> > > > >
> > > > > A) =46irmly state that replication SID MUST be the last one on =
the
> > > > > stack
> > > > > B) Instead of real SID after the replication SID provide a
> > > > > binding SID which
> > > locally will be mapped to a different SID list imposed to each repl=
icated flow.
> > > > >
> > > > >
> > > > > We would be fine with A), but we don't want to exclude
> > > > > possibility of something like what you describe in B.
> > > > >
> > > > > -Rishabh
> > > > >
> > > > > On Wed, Jul 1, 2020 at 12:27 PM Robert Raszuk
> > > > > <robert=40raszuk.net>
> > > wrote:
> > > > >
> > > > >
> > > > > Hi Rishabh,
> > > > >
> > > > > Of course, care must be
> > > > > taken to avoid the =22explosion=22 as you describe it. G-SID-2 =
has
> > > > > to map to a unique node; for example, it may be an Anycast-SID
> > > > > that takes packet to distinct nodes from each of the downstream=

> > > > > node, or the downstream nodes can be border nodes connecting to=

> > > > > other segment routing domains where G-SID-2 resolves to distinc=
t
> > > > > nodes in each domain.
> > > > >
> > > > >
> > > > > I think you are stretching it too thin.
> > > > >
> > > > > See even if G-SID-2 is anycast SID you have zero assurance that=

> > > > > physical
> > > nodes packets will land on would be at all diverse.
> > > > >
> > > > > Likewise crossing domains yet providing identical global SID no=
w
> > > > > to be a
> > > different node in each such domain to me is not a realistic example=
.
> > > > >
> > > > > I think we have two options:
> > > > >
> > > > > A) =46irmly state that replication SID MUST be the last one on =
the
> > > > > stack
> > > > >
> > > > > B) Instead of real SID after the replication SID provide a
> > > > > binding SID which
> > > locally will be mapped to a different SID list imposed to each repl=
icated flow.
> > > > >
> > > > > What is currently in the draft seems to be very counterintuitiv=
e
> > > > > and IMHO
> > > will result in operational difficulties.
> > > > >
> > > > > Thx a lot,
> > > > > R.
> > > > >
> > > > >
> > > > > =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
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=5F
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https
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> > > >
> > > > =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
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<div name=3D=22messageBodySection=22>
<div dir=3D=22auto=22>Thanks Rishabh=21<br />
+1 to the above comments and looking forward to the updated draft.</div>
</div>
<div name=3D=22messageSignatureSection=22><br />
<div class=3D=22match=46ont=22>Cheers,
<div>Jeff</div>
</div>
</div>
<div name=3D=22messageReplySection=22>On Jul 7, 2020, 7:35 AM -0700, Alex=
ander Vainshtein &lt;Alexander.Vainshtein=40rbbn.com&gt;, wrote:<br />
<blockquote type=3D=22cite=22 style=3D=22border-left-color: grey; border-=
left-width: thin; border-left-style: solid; margin: 5px 5px;padding-left:=
 10px;=22>Dhruv, Bruno and all,<br />
Regarding the statement =22 What is missing in the spring I-D is some ver=
y high level discussion in terms of architecture on how replication segme=
nt and SR P2MP policy come together=22 - I cannot agree more.<br />
<br />
My 2c,<br />
Sasha<br />
<br />
Office: +972-39266302<br />
Cell: +972-549266302<br />
Email: <a href=3D=22mailto:Alexander.Vainshtein=40ecitele.com=22>Alexande=
r.Vainshtein=40ecitele.com</a><br />
<br />
<br />
-----Original Message-----<br />
=46rom: spring &lt;spring-bounces=40ietf.org&gt; On Behalf Of Dhruv Dhody=
<br />
Sent: Tuesday, July 7, 2020 1:02 PM<br />
To: <a href=3D=22mailto:bruno.decraene=40orange.com=22>bruno.decraene=40o=
range.com</a><br />
Cc: <a href=3D=22mailto:spring=40ietf.org=22>spring=40ietf.org</a><br />
Subject: Re: =5Bspring=5D Understanding the replication draft<br />
<br />
Hi Bruno,<br />
<br />
Yes, thanks=21 I was just making sure that we have an agreement that PIM =
is the right place to define SR P2MP Policy.<br />
<br />
What is missing in the spring I-D is some very high level discussion in t=
erms of architecture on how replication segment and SR P2MP policy come t=
ogether. The current I-D tries to define a replication segment as an inde=
pendent entity that could be used on its own but it makes it difficult to=
 visualize without some high level text or an example.<br />
<br />
Thanks=21<br />
Dhruv<br />
<br />
On Tue, Jul 7, 2020 at 3:12 PM &lt;bruno.decraene=40orange.com&gt; wrote:=
<br />
&gt;<br />
&gt; Hi Dhruv,<br />
&gt;<br />
&gt; &gt; -----Original Message-----<br />
&gt; &gt; =46rom: spring =5Bmailto:spring-bounces=40ietf.org=5D On Behalf=
 Of Dhruv<br />
&gt; &gt; Dhody<br />
&gt; &gt; Subject: Re: =5Bspring=5D Understanding the replication draft<b=
r />
&gt; &gt;<br />
&gt; &gt; Hi WG,<br />
&gt; &gt;<br />
&gt; &gt; Reading the I-D and based on the discussion on this thread I be=
lieve<br />
&gt; &gt; more description is required. As Joel pointed out, clarity on w=
hat<br />
&gt; &gt; is legal/illegal (or out of scope for now) is needed.<br />
&gt;<br />
&gt; I leave this for the authors to reply.<br />
&gt;<br />
&gt; &gt; I have no strong opinion if that needs to be done before or aft=
er adoption=21<br />
&gt; &gt;<br />
&gt; &gt; I do not follow PIM closely and just realized that the SR P2MP<=
br />
&gt; &gt; Policy in the PIM I-D =5B1=5D is adopted by the PIM WG, but not=
 yet posted =5B2=5D.<br />
&gt; &gt; I wanted to make sure that it has been decided that PIM is the =
right<br />
&gt; &gt; place to define SR P2MP policy (discussed either in the WG and/=
or<br />
&gt; &gt; between chairs/AD)=3F<br />
&gt;<br />
&gt; draft-voyer-pim-sr-p2mp-policy-00 is to be worked in the PIM WG.<br =
/>
&gt; The PIM WG is waiting for the SPRING WG to adopt draft-voyer-spring-=
sr-replication-segment, since the -pim- document has a dependency on the =
-spring- document.<br />
&gt;<br />
&gt; Quoting the PIM chairs: =22We have solid support to adopt this draft=
. =5B...=5D We are waiting to hear back from the spring chairs as to the =
wg status of the local replication draft of which your draft is dependent=
. So please hold off on submitting the new draft-ietf-pim-sr-p2mp-policy =
until they give us the green light.=22<br />
&gt;<br />
&gt; Does this answer your question=3F<br />
&gt;<br />
&gt; --Bruno<br />
&gt;<br />
&gt; &gt; Thanks=21<br />
&gt; &gt; Dhruv<br />
&gt; &gt;<br />
&gt; &gt; =5B1=5D<br />
&gt; &gt; <a href=3D=22https://clicktime.symantec.com/36sxrNP=46ssiaB8jE9=
mzzZDd6H2=3Fu=3Dhttps%3A=22 target=3D=22=5Fblank=22>https://clicktime.sym=
antec.com/36sxrNP=46ssiaB8jE9mzzZDd6H2=3Fu=3Dhttps%3A</a><br />
&gt; &gt; %2=46%2=46datatracker.ietf.org%2=46doc%2=46draft-voyer-pim-sr-p=
2mp-policy%2=46<br />
&gt; &gt; =5B2=5D<br />
&gt; &gt; <a href=3D=22https://clicktime.symantec.com/3LtBxbxRK3NkuKYc3=46=
C7rr46H2=3Fu=3Dhttps%3A=22 target=3D=22=5Fblank=22>https://clicktime.syma=
ntec.com/3LtBxbxRK3NkuKYc3=46C7rr46H2=3Fu=3Dhttps%3A</a><br />
&gt; &gt; %2=46%2=46mailarchive.ietf.org%2=46arch%2=46msg%2=46pim%2=46Yy=46=
7I02aaRtpZngf7uTn<br />
&gt; &gt; o69IB90%2=46<br />
&gt; &gt;<br />
&gt; &gt;<br />
&gt; &gt;<br />
&gt; &gt; On Thu, Jul 2, 2020 at 12:05 PM Rishabh Parekh &lt;rishabhp=40g=
mail..com&gt;<br />
&gt; &gt; wrote:<br />
&gt; &gt; &gt;<br />
&gt; &gt; &gt; Jeff,<br />
&gt; &gt; &gt; Your explanation of distinct Transport SIDs and service la=
bels<br />
&gt; &gt; &gt; (which appear at BoS) applies to Point-to-Point services. =
Same<br />
&gt; &gt; &gt; model can be applied when a Point-to-Multipoint service is=
<br />
&gt; &gt; &gt; realized by one end-to-end replication segment; =22Downstr=
eam<br />
&gt; &gt; &gt; Replication SID=22 as specified in draft is effectively th=
e service<br />
&gt; &gt; &gt; label at a specific downstream node of a Replication segme=
nt with<br />
&gt; &gt; &gt; Transport SIDs imposed on top to take replicated packet to=
 that node.<br />
&gt; &gt; &gt;<br />
&gt; &gt; &gt; However, when a Point-to-Multipoint service is over replic=
ation<br />
&gt; &gt; &gt; segments stitched together to form a P2MP tree, as describ=
ed in<br />
&gt; &gt; &gt; PIM WG draft, this model no longer holds since all service=
 egress<br />
&gt; &gt; &gt; nodes would have to agree on one common service label. So =
P2MP<br />
&gt; &gt; &gt; services implicitly map the P2MP transport label (Replicat=
ion SID<br />
&gt; &gt; &gt; at BoS in this case) to the P2MP service. Of course, this =
implies<br />
&gt; &gt; &gt; one-to-one association between a P2MP service and a P2MP<b=
r />
&gt; &gt; &gt; transport. There are techniques to share one P2MP transpor=
t across<br />
&gt; &gt; &gt; different P2MP services using either upstream assigned lab=
el or a<br />
&gt; &gt; &gt; global context from =22Domain-wide Common Block=22<br />
&gt; &gt; &gt; (draft-ietf-bess-mvpn-evpn-aggregation-label). These and o=
ther<br />
&gt; &gt; &gt; gory details are described in Section 2 of PIM WG draft an=
d to<br />
&gt; &gt; &gt; some extent in BESS MVPN-EVPN draft.<br />
&gt; &gt; &gt;<br />
&gt; &gt; &gt; -Rishabh<br />
&gt; &gt; &gt;<br />
&gt; &gt; &gt; On Wed, Jul 1, 2020 at 5:50 PM Jeff Tantsura<br />
&gt; &gt; &gt; &lt;jefftant.ietf=40gmail.com&gt;<br />
&gt; &gt; wrote:<br />
&gt; &gt; &gt; &gt;<br />
&gt; &gt; &gt; &gt; Rishabh,<br />
&gt; &gt; &gt; &gt;<br />
&gt; &gt; &gt; &gt; Transport SID with a service on top can=E2=80=99t be =
a BoS label,<br />
&gt; &gt; &gt; &gt; there=E2=80=99s s service<br />
&gt; &gt; label below, since a service is associated with a particular no=
de,<br />
&gt; &gt; there would be at least a N-SID associated with the service nod=
e.<br />
&gt; &gt; &gt; &gt; It seems like B-SID behavior is the correct one, when=
 R-SID is<br />
&gt; &gt; &gt; &gt; looked up<br />
&gt; &gt; and popped, it would yield: replication (as programmed by a<br =
/>
&gt; &gt; controller, since there=E2=80=99s no state) + new label stack a=
ssociated<br />
&gt; &gt; with the new, post replication/branching path that is imposed o=
n top<br />
&gt; &gt; of existing label stack, so service label ( + optionally more t=
ransport labels) are preserved.<br />
&gt; &gt; &gt; &gt;<br />
&gt; &gt; &gt; &gt; Cheers,<br />
&gt; &gt; &gt; &gt; Jeff<br />
&gt; &gt; &gt; &gt; On Jul 1, 2020, 12:40 PM -0700, Rishabh Parekh<br />
&gt; &gt; &gt; &gt; &lt;rishabhp=40gmail.com&gt;,<br />
&gt; &gt; wrote:<br />
&gt; &gt; &gt; &gt;<br />
&gt; &gt; &gt; &gt; Robert,<br />
&gt; &gt; &gt; &gt;<br />
&gt; &gt; &gt; &gt; A) =46irmly state that replication SID MUST be the la=
st one on the<br />
&gt; &gt; &gt; &gt; stack<br />
&gt; &gt; &gt; &gt; B) Instead of real SID after the replication SID prov=
ide a<br />
&gt; &gt; &gt; &gt; binding SID which<br />
&gt; &gt; locally will be mapped to a different SID list imposed to each =
replicated flow.<br />
&gt; &gt; &gt; &gt;<br />
&gt; &gt; &gt; &gt;<br />
&gt; &gt; &gt; &gt; We would be fine with A), but we don't want to exclud=
e<br />
&gt; &gt; &gt; &gt; possibility of something like what you describe in B.=
<br />
&gt; &gt; &gt; &gt;<br />
&gt; &gt; &gt; &gt; -Rishabh<br />
&gt; &gt; &gt; &gt;<br />
&gt; &gt; &gt; &gt; On Wed, Jul 1, 2020 at 12:27 PM Robert Raszuk<br />
&gt; &gt; &gt; &gt; &lt;robert=40raszuk.net&gt;<br />
&gt; &gt; wrote:<br />
&gt; &gt; &gt; &gt;<br />
&gt; &gt; &gt; &gt;<br />
&gt; &gt; &gt; &gt; Hi Rishabh,<br />
&gt; &gt; &gt; &gt;<br />
&gt; &gt; &gt; &gt; Of course, care must be<br />
&gt; &gt; &gt; &gt; taken to avoid the =22explosion=22 as you describe it=
. G-SID-2 has<br />
&gt; &gt; &gt; &gt; to map to a unique node; for example, it may be an An=
ycast-SID<br />
&gt; &gt; &gt; &gt; that takes packet to distinct nodes from each of the =
downstream<br />
&gt; &gt; &gt; &gt; node, or the downstream nodes can be border nodes con=
necting to<br />
&gt; &gt; &gt; &gt; other segment routing domains where G-SID-2 resolves =
to distinct<br />
&gt; &gt; &gt; &gt; nodes in each domain.<br />
&gt; &gt; &gt; &gt;<br />
&gt; &gt; &gt; &gt;<br />
&gt; &gt; &gt; &gt; I think you are stretching it too thin.<br />
&gt; &gt; &gt; &gt;<br />
&gt; &gt; &gt; &gt; See even if G-SID-2 is anycast SID you have zero assu=
rance that<br />
&gt; &gt; &gt; &gt; physical<br />
&gt; &gt; nodes packets will land on would be at all diverse.<br />
&gt; &gt; &gt; &gt;<br />
&gt; &gt; &gt; &gt; Likewise crossing domains yet providing identical glo=
bal SID now<br />
&gt; &gt; &gt; &gt; to be a<br />
&gt; &gt; different node in each such domain to me is not a realistic exa=
mple.<br />
&gt; &gt; &gt; &gt;<br />
&gt; &gt; &gt; &gt; I think we have two options:<br />
&gt; &gt; &gt; &gt;<br />
&gt; &gt; &gt; &gt; A) =46irmly state that replication SID MUST be the la=
st one on the<br />
&gt; &gt; &gt; &gt; stack<br />
&gt; &gt; &gt; &gt;<br />
&gt; &gt; &gt; &gt; B) Instead of real SID after the replication SID prov=
ide a<br />
&gt; &gt; &gt; &gt; binding SID which<br />
&gt; &gt; locally will be mapped to a different SID list imposed to each =
replicated flow.<br />
&gt; &gt; &gt; &gt;<br />
&gt; &gt; &gt; &gt; What is currently in the draft seems to be very count=
erintuitive<br />
&gt; &gt; &gt; &gt; and IMHO<br />
&gt; &gt; will result in operational difficulties.<br />
&gt; &gt; &gt; &gt;<br />
&gt; &gt; &gt; &gt; Thx a lot,<br />
&gt; &gt; &gt; &gt; R.<br />
&gt; &gt; &gt; &gt;<br />
&gt; &gt; &gt; &gt;<br />
&gt; &gt; &gt; &gt; =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F<br />
&gt; &gt; &gt; &gt; spring mailing list<br />
&gt; &gt; &gt; &gt; <a href=3D=22mailto:spring=40ietf.org=22>spring=40iet=
f.org</a><br />
&gt; &gt; &gt; &gt; <a href=3D=22https://clicktime.symantec.com/3U9X5zkPb=
Kst7T8373JWnS6H2=3Fu=3Dhttps=22 target=3D=22=5Fblank=22>https://clicktime=
.symantec.com/3U9X5zkPbKst7T8373JWnS6H2=3Fu=3Dhttps</a><br />
&gt; &gt; &gt; &gt; %3A%2=46%2=46www.ietf.org%2=46mailman%2=46listinfo%2=46=
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From nobody Tue Jul  7 14:32:39 2020
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From: "Joel M. Halpern" <jmh@joelhalpern.com>
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Subject: Re: [spring] Final? design team charge
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Team organization and operation is up to the team.
In the abstract, having an archive would be good, but if you feel it 
will interfere with the work, then so be it.
We can ask the ADs for support if you want an archived email list.

Yours,
Joel

PS: Sorry about the typo on your name.

On 7/7/2020 5:09 PM, Sander Steffann wrote:
> Hi Joel,
> 
> On 07-07-2020 18:24, Joel Halpern wrote:
>> The Design team will be
>> Co-Chaired by:
>>  Â Â Â  Cheng Weiqiang of China Mobile and
>>  Â Â Â  Sanders Steffann of SJM Steffann Consultancy
> 
> Minor typo in my first name (Sander) but no harm done :)
> 
>> The other members of the team are:
>>  Â Â Â  Ron Bonica of Juniper
>>  Â Â Â  Darren Dukes of Cisco
>>  Â Â Â  Cheng Li of Huawei
>>  Â Â Â  Peng Shaofu of ZTE
>>  Â Â Â  Wim Henderickx of Nokia
>>  Â Â Â  Chongfeng Xie of China Telecom
> 
> Is there any requirement on how to organize this team? Would the WG
> Chairs and ADs like to see an archived mailing list of the discussions,
> or is that entirely up to us?
> 
> In any case: hello team! Please reply to me off-list with the email
> address you would like to use for design team discussions so I know how
> to reach you.
> 
> Cheers,
> Sander
> 


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<body lang=3D"ZH-CN" link=3D"#0563C1" vlink=3D"#954F72" style=3D"text-justi=
fy-trim:punctuation">
<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D">Hi minh=
ong:<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-indent:9.0pt"><span lang=3D"EN-US" sty=
le=3D"color:#1F497D">Question 1: draft-hu-rtgwg-srv6-egress-protection-08 c=
ompliance draft-ietf-spring-srv6-network-programming</span><span style=3D"f=
ont-family:=CB=CE=CC=E5;color:#1F497D">=A3=AC</span><span lang=3D"EN-US" st=
yle=3D"color:#1F497D">It
 use H.Encaps Encapsulating the Repair List</span><span style=3D"font-famil=
y:=CB=CE=CC=E5;color:#1F497D">=A1=A3</span><span lang=3D"EN-US" style=3D"co=
lor:#1F497D"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-indent:9.0pt"><span lang=3D"EN-US" sty=
le=3D"color:#1F497D">Question 2: Only if SL =3D=3D 0 or No SRH, It will exe=
cut the mirror behavior</span><span style=3D"font-family:=CB=CE=CC=E5;color=
:#1F497D">=A1=A3</span><span lang=3D"EN-US" style=3D"color:#1F497D">If
 the End Sid is the last sid,It will mirror behavior</span><span style=3D"f=
ont-family:=CB=CE=CC=E5;color:#1F497D">=A1=A3</span><span lang=3D"EN-US" st=
yle=3D"color:#1F497D">Or It will execut other protect behavior.<o:p></o:p><=
/span></p>
<p class=3D"MsoNormal" style=3D"text-indent:9.0pt"><span lang=3D"EN-US" sty=
le=3D"color:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-indent:9.0pt"><span lang=3D"EN-US" sty=
le=3D"color:#1F497D">Thanks<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-indent:9.0pt"><span lang=3D"EN-US" sty=
le=3D"color:#1F497D">Zhibo<o:p></o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" align=3D"left" style=3D"text-align:left"><b><span la=
ng=3D"EN-US" style=3D"font-size:11.0pt">From:</span></b><span lang=3D"EN-US=
" style=3D"font-size:11.0pt"> Heminhong [mailto:he.minhong@h3c.com]
<br>
<b>Sent:</b> Wednesday, July 8, 2020 9:42 AM<br>
<b>To:</b> Huzhibo &lt;huzhibo@huawei.com&gt;; Huaimo.chen@futurewei.com; c=
henhuan6@chinatelecom.cn; Wupeng (Baggio, VRP MKT) &lt;baggio.wupeng@huawei=
.com&gt;; mehmet.toy@verizon.com; caoc15@chinaunicom.cn; het21@chinaunicom.=
cn; liulei.kddi@gmail.com; xufeng.liu.ietf@gmail.com<br>
<b>Cc:</b> rtgwg@ietf.org; spring@ietf.org<br>
<b>Subject:</b> Two questions about the draft-hu-rtgwg-srv6-egress-protecti=
on-08<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" align=3D"left" style=3D"text-align:left"><span lang=
=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-=
family:&quot;Microsoft YaHei UI&quot;,sans-serif;color:black">Dear,<o:p></o=
:p></span></p>
<p class=3D"MsoListParagraph" style=3D"margin-left:18.0pt;text-indent:-18.0=
pt;mso-list:l0 level1 lfo2">
<![if !supportLists]><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-fa=
mily:&quot;Microsoft YaHei UI&quot;,sans-serif;color:black"><span style=3D"=
mso-list:Ignore">1.<span style=3D"font:7.0pt &quot;Times New Roman&quot;">&=
nbsp;&nbsp;&nbsp;&nbsp;
</span></span></span><![endif]><span lang=3D"EN-US" style=3D"font-size:10.0=
pt;font-family:&quot;Microsoft YaHei UI&quot;,sans-serif;color:black">About
</span><span lang=3D"EN-US" style=3D"font-size:12.0pt;font-family:=CB=CE=CC=
=E5">P1 </span><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-family:&=
quot;Microsoft YaHei UI&quot;,sans-serif;color:black">how to
</span><span lang=3D"EN-US" style=3D"font-size:12.0pt;font-family:=CB=CE=CC=
=E5;color:black">encapsulate the packet
</span><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-family:&quot;Mic=
rosoft YaHei UI&quot;,sans-serif;color:black"><o:p></o:p></span></p>
<p class=3D"MsoNormal" align=3D"left" style=3D"text-align:left;text-autospa=
ce:none"><span lang=3D"EN-US" style=3D"font-size:12.0pt;font-family:=CB=CE=
=CC=E5">draft-hu-rtgwg-srv6-egress-protection-07, the following description=
 :
</span><span style=3D"font-size:12.0pt;font-family:=CB=CE=CC=E5">=A1=B0<spa=
n lang=3D"EN-US">When PE3 fails, node P1 protects PE3 through sending the p=
acket to PE4 via the backup path pre-computed. P1
<span style=3D"color:red">modifies the packet</span> before sending it to P=
E4. The modified packet has destination PE4 with mirror SID A4:1::3, and SR=
H with PE3</span>=A1=AF<span lang=3D"EN-US">s VPN SID A3:1::B100 and the mi=
rror SID A4:1::3 (i.e., &quot;A3:1::B100, A4:1::3;
 SL=3D1&quot;). </span>=A1=B1<span lang=3D"EN-US"><o:p></o:p></span></span>=
</p>
<p class=3D"MsoNormal" align=3D"left" style=3D"text-align:left;text-autospa=
ce:none"><span lang=3D"EN-US" style=3D"font-size:12.0pt;font-family:=CB=CE=
=CC=E5">However</span><span style=3D"font-size:12.0pt;font-family:=CB=CE=CC=
=E5">=A3=AC<span lang=3D"EN-US">draft-hu-rtgwg-srv6-egress-protection-08,th=
e
 following description: &nbsp;</span>=A1=B0<span lang=3D"EN-US">When PE3 fa=
ils, P1 as PLR sends the packet to PE4 via the backup path pre-computed.&nb=
sp; P1
<span style=3D"color:red">encapsulates the packet</span> using H.Encaps bef=
ore sending it to PE4.</span>=A1=B1<span lang=3D"EN-US"><o:p></o:p></span><=
/span></p>
<p class=3D"MsoNormal" align=3D"left" style=3D"text-align:left;text-autospa=
ce:none"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" align=3D"left" style=3D"text-align:left;text-autospa=
ce:none"><span lang=3D"EN-US">2</span><span style=3D"font-family:=CB=CE=CC=
=E5">=A1=A2</span><span lang=3D"EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" align=3D"left" style=3D"text-align:left;text-autospa=
ce:none"><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;
<span style=3D"color:red">END SID: A2:1::B100</span><o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; *******&n=
bsp; *******&nbsp; VPN SID: A3:1::B100<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; [PE1]-----[P1]-----[PE3]---[CE2]&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp; PE3 Egress<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; / |&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp; |&amp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; | \&nbsp;&nbs=
p; /&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; PE4 Backup Egres=
s<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; /&nbsp; |&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp; |&amp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; |&nbsp; \ /&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; CEx Customer Edg=
e<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp; [CE1]&nbsp;&nbsp; |&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; |&amp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; |&nbsp;&nbsp; X&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Px&nbsp; Non-Provider Edge=
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; \&nbsp; |&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp; |&amp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; |&nbsp; / \&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; *** SR Path<o:p>=
</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; \ |&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp; |&amp; &amp;&amp;&amp;&amp;&amp;&nbsp; | /&nbsp;&nbsp; \&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &amp;&amp;&amp; Backup Pat=
h<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; [PE2]-----[P2]-----[PE4]---[CE3]<=
o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp; VPN SID: A4:1::B100<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp; Mirror SID: A4:1::3, protect PE3<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Figure 2: PE4 Protect=
s Egress PE3 of SR Path<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp; Suppose that the p=
acket received by P1 is represented by Pkt =3D (SA =3D<o:p></o:p></span></p=
>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp; A1:1::, DA =3D A2:=
1::B100)Pkt0, where DA =3D A2:1::B100 is PE3's
<span style=3D"color:red">END</span> SID,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp; and Pkt0 is the re=
st of the packet.&nbsp; The encapsulated packet Pkt'<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp; will be one of the=
 followings:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoListParagraph" style=3D"margin-left:33.75pt;text-indent:-18.=
0pt;mso-list:l1 level1 lfo4">
<![if !supportLists]><span lang=3D"EN-US" style=3D"font-family:Wingdings"><=
span style=3D"mso-list:Ignore">l<span style=3D"font:7.0pt &quot;Times New R=
oman&quot;">&nbsp;
</span></span></span><![endif]><span lang=3D"EN-US" style=3D"color:red">Pkt=
' =3D (T, Mirror SID A4:1::3) (A1:1::, A2:1::B100)( A3:1::B100, A2:1::B100)=
Pkt0, how to process?
<o:p></o:p></span></p>
<p class=3D"MsoListParagraph" style=3D"margin-left:33.75pt;text-indent:0cm"=
><span lang=3D"EN-US" style=3D"color:red"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoListParagraph" style=3D"margin-left:33.75pt;text-indent:0cm"=
><span lang=3D"EN-US" style=3D"color:red">Processing on the receiver or on =
the sender?<o:p></o:p></span></p>
<p class=3D"MsoListParagraph" style=3D"margin-left:33.75pt;text-indent:0cm"=
><span lang=3D"EN-US" style=3D"color:red"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoListParagraph" style=3D"margin-left:33.75pt;text-indent:0cm"=
><span lang=3D"EN-US" style=3D"color:red"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoPlainText"><span lang=3D"EN-US" style=3D"font-size:10.0pt;fo=
nt-family:&quot;Microsoft YaHei UI&quot;,sans-serif;color:black">Thanks for=
 your time, Looking forward to your reply.</span><span lang=3D"EN-US"><o:p>=
</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Best regards.<o:p></o:p></span>=
</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Sincerely yours,<o:p></o:p></sp=
an></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">minhong<o:p></o:p></span></p>
<p class=3D"MsoNormal" align=3D"left" style=3D"text-align:left"><span lang=
=3D"EN-US" style=3D"font-size:7.5pt;font-family:=BB=AA=CE=C4=CF=B8=BA=DA;co=
lor:gray">-----------------------------------------------------------------=
--------------------------------------------------------------------<br>
</span><span style=3D"font-size:7.5pt;font-family:=BB=AA=CE=C4=CF=B8=BA=DA;=
color:gray">=B1=BE=D3=CA=BC=FE=BC=B0=C6=E4=B8=BD=BC=FE=BA=AC=D3=D0=D0=C2=BB=
=AA=C8=FD=BC=AF=CD=C5=B5=C4=B1=A3=C3=DC=D0=C5=CF=A2=A3=AC=BD=F6=CF=DE=D3=DA=
=B7=A2=CB=CD=B8=F8=C9=CF=C3=E6=B5=D8=D6=B7=D6=D0=C1=D0=B3=F6<span lang=3D"E=
N-US"><br>
</span>=B5=C4=B8=F6=C8=CB=BB=F2=C8=BA=D7=E9=A1=A3=BD=FB=D6=B9=C8=CE=BA=CE=
=C6=E4=CB=FB=C8=CB=D2=D4=C8=CE=BA=CE=D0=CE=CA=BD=CA=B9=D3=C3=A3=A8=B0=FC=C0=
=A8=B5=AB=B2=BB=CF=DE=D3=DA=C8=AB=B2=BF=BB=F2=B2=BF=B7=D6=B5=D8=D0=B9=C2=B6=
=A1=A2=B8=B4=D6=C6=A1=A2<span lang=3D"EN-US"><br>
</span>=BB=F2=C9=A2=B7=A2=A3=A9=B1=BE=D3=CA=BC=FE=D6=D0=B5=C4=D0=C5=CF=A2=
=A1=A3=C8=E7=B9=FB=C4=FA=B4=ED=CA=D5=C1=CB=B1=BE=D3=CA=BC=FE=A3=AC=C7=EB=C4=
=FA=C1=A2=BC=B4=B5=E7=BB=B0=BB=F2=D3=CA=BC=FE=CD=A8=D6=AA=B7=A2=BC=FE=C8=CB=
=B2=A2=C9=BE=B3=FD=B1=BE<span lang=3D"EN-US"><br>
</span>=D3=CA=BC=FE=A3=A1<span lang=3D"EN-US"><br>
</span></span><span lang=3D"EN-US" style=3D"font-size:7.5pt;font-family:&qu=
ot;Arial&quot;,sans-serif;color:gray">This e-mail and its attachments conta=
in confidential information from New H3C, which is
<br>
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se of the
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information contained herein in any way (including, but not limited to, tot=
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ded <br>
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</html>

--_000_06CF729DA0D6854E8C1E5121AC3330DFAF6B8118dggemm509mbxchi_--


From nobody Tue Jul  7 23:35:51 2020
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From: Dhruv Dhody <dhruv.ietf@gmail.com>
Date: Wed, 8 Jul 2020 12:04:59 +0530
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To: James Guichard <james.n.guichard@futurewei.com>
Cc: "spring@ietf.org" <spring@ietf.org>, "spring-chairs@ietf.org" <spring-chairs@ietf.org>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/bLStk2WEPqRi5ym4WLd_ReyDaUk>
Subject: Re: [spring] WG LC https://datatracker.ietf.org/doc/draft-ietf-spring-sr-yang/
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Hi WG,

I guess it is still 7th in some part of the earth and hoping I am not
too late :)

I find it weird that the SRv6 Yang
[https://tools.ietf.org/html/draft-raza-spring-srv6-yang-05] does not
use/augment ietf-segment-routing or ietf-segment-routing-common. A
sync up between these modules will be useful to understand the overall
design! A section describing this would also be quite useful.

Few comments -

- Avoid references in Abstract, See
https://tools.ietf.org/html/rfc7322#section-4.3

   Similarly, the Abstract should be complete in itself.  It will appear
   in isolation in publication announcements and in the online index of
   RFCs.  Therefore, the Abstract must not contain citations.

   You could replace those with straight textual mentions of the documents.

   Also, the use of SHOULD in the abstract does not seem right.
- Section 4, you say -

   The sr-mpls configuration is split in global configuration and
   interface configuration.

   But there is no interface configuration mentioned.

   s/lcoal/local/

- Section 5.1.1.1,  you should remove this -

   This section is a first proposal on how to use S-bit in Adj-SID to
   create bundles.  Authors would like to trigger discussion based on
   this first proposal.

   Please also add references for S-bit and B-Flag etc

- Section 8

   - The yang model lacks a "reference" statement when importing
external modules or designing key concepts. They are useful while
reviewing.
   - Can we rename ipv4-sid and ipv6-sid to ipv4-prefix-sid and
ipv6-prefix-sid respectively?
   - It could be useful to add a description of why ERLD is read-only
in the YANG.
   - Why is the grouping srgb defined in ietf-segment-routing-common,
but the feature protocol-srgb is in ietf-segment-routing-mpls?
   - Can the ISIS YANG typedef be used instead of redefining the
system-id in SR yang.
   - In the grouping sr-controlplane, is it not better to have a
reference to the policy rather than a string?

      +--rw segment-routing
      |  +--rw enabled?    boolean
      |  +--rw bindings
      |     +--rw advertise
      |     |  +--rw policies*   string
      |     +--rw receive?     boolean

   - Target is defined as a string in the yang. You do say that they
are IPv4/IPv6 prefix in the context of the I-D. I want to confirm that
the string is the right choice in such a case.

- Section 11, ietf-segment-routing-mpls is missing from IANA section

Thanks!
Dhruv


On Tue, Jun 23, 2020 at 11:29 PM James Guichard
<james.n.guichard@futurewei.com> wrote:
>
> Dear SPRING WG:
>
>
>
> This email starts a two week WG LC for https://datatracker.ietf.org/doc/draft-ietf-spring-sr-yang/.
>
>
>
> Substantive comments should be directed to the mailing list no later than July 7th. Editorial suggestions can be sent to the authors.
>
>
>
> Thanks!
>
>
>
> Jim, Joel & Bruno
>
>
>
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring


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From: Huzhibo <huzhibo@huawei.com>
To: Heminhong <he.minhong@h3c.com>, "Huaimo.chen@futurewei.com" <Huaimo.chen@futurewei.com>, "chenhuan6@chinatelecom.cn" <chenhuan6@chinatelecom.cn>, "Wupeng (Baggio, VRP MKT)" <baggio.wupeng@huawei.com>, "mehmet.toy@verizon.com" <mehmet.toy@verizon.com>, "caoc15@chinaunicom.cn" <caoc15@chinaunicom.cn>, "het21@chinaunicom.cn" <het21@chinaunicom.cn>, "liulei.kddi@gmail.com" <liulei.kddi@gmail.com>, "xufeng.liu.ietf@gmail.com" <xufeng.liu.ietf@gmail.com>
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Thread-Topic: Two questions about the draft-hu-rtgwg-srv6-egress-protection-08
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Subject: Re: [spring] Two questions about the draft-hu-rtgwg-srv6-egress-protection-08
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</head>
<body lang=3D"ZH-CN" link=3D"#0563C1" vlink=3D"#954F72" style=3D"text-justi=
fy-trim:punctuation">
<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span lang=3D"EN-US">Yes, If it isn`t the last Sid,I=
t will execut other protection behavior.<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-indent:21.0pt"><span lang=3D"EN-US"><o=
:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-indent:21.0pt"><span lang=3D"EN-US">Th=
anks<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-indent:21.0pt"><span lang=3D"EN-US">Zh=
ibo<o:p></o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" align=3D"left" style=3D"text-align:left"><b><span la=
ng=3D"EN-US" style=3D"font-size:11.0pt">From:</span></b><span lang=3D"EN-US=
" style=3D"font-size:11.0pt"> Heminhong [mailto:he.minhong@h3c.com]
<br>
<b>Sent:</b> Wednesday, July 8, 2020 2:37 PM<br>
<b>To:</b> Huzhibo &lt;huzhibo@huawei.com&gt;; Huaimo.chen@futurewei.com; c=
henhuan6@chinatelecom.cn; Wupeng (Baggio, VRP MKT) &lt;baggio.wupeng@huawei=
.com&gt;; mehmet.toy@verizon.com; caoc15@chinaunicom.cn; het21@chinaunicom.=
cn; liulei.kddi@gmail.com; xufeng.liu.ietf@gmail.com<br>
<b>Cc:</b> rtgwg@ietf.org; spring@ietf.org<br>
<b>Subject:</b> </span><span style=3D"font-size:11.0pt;font-family:=CB=CE=
=CC=E5">=B4=F0=B8=B4</span><span lang=3D"EN-US" style=3D"font-size:11.0pt">=
: Two questions about the draft-hu-rtgwg-srv6-egress-protection-08<o:p></o:=
p></span></p>
</div>
</div>
<p class=3D"MsoNormal" align=3D"left" style=3D"text-align:left"><span lang=
=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D">Excuse =
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D"><o:p>&n=
bsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">if SL =3D=3D1 or &nbsp;(T, Mirr=
or SID A4:1::3) (A1:1::, A2:1::B100)( A3:1::B100,
<span style=3D"color:red">A2:1::B100</span>)(SRH),when A2:1::B100 is PE3's<=
span style=3D"color:red"> END
</span>SID, it will execut <span style=3D"color:red">midpoint-protection ?<=
o:p></o:p></span></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:red"><o:p>&nbsp;=
</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:red"><o:p>&nbsp;=
</o:p></span></p>
<p class=3D"MsoPlainText"><span lang=3D"EN-US" style=3D"font-size:10.0pt;fo=
nt-family:&quot;Microsoft YaHei UI&quot;,sans-serif;color:black">Thanks for=
 your time, Looking forward to your reply.</span><span lang=3D"EN-US"><o:p>=
</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Best regards.<o:p></o:p></span>=
</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Sincerely yours,<o:p></o:p></sp=
an></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">minhong<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D"><o:p>&n=
bsp;</o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" align=3D"left" style=3D"text-align:left"><b><span st=
yle=3D"font-size:11.0pt;font-family:&quot;=CE=A2=C8=ED=D1=C5=BA=DA&quot;,sa=
ns-serif">=B7=A2=BC=FE=C8=CB<span lang=3D"EN-US">:</span></span></b><span l=
ang=3D"EN-US" style=3D"font-size:11.0pt;font-family:&quot;=CE=A2=C8=ED=D1=
=C5=BA=DA&quot;,sans-serif"> Huzhibo [<a href=3D"mailto:huzhibo@huawei.com"=
>mailto:huzhibo@huawei.com</a>]
<br>
</span><b><span style=3D"font-size:11.0pt;font-family:&quot;=CE=A2=C8=ED=D1=
=C5=BA=DA&quot;,sans-serif">=B7=A2=CB=CD=CA=B1=BC=E4<span lang=3D"EN-US">:<=
/span></span></b><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family=
:&quot;=CE=A2=C8=ED=D1=C5=BA=DA&quot;,sans-serif"> 2020</span><span style=
=3D"font-size:11.0pt;font-family:&quot;=CE=A2=C8=ED=D1=C5=BA=DA&quot;,sans-=
serif">=C4=EA<span lang=3D"EN-US">7</span>=D4=C2<span lang=3D"EN-US">8</spa=
n>=C8=D5<span lang=3D"EN-US">
 10:38<br>
</span><b>=CA=D5=BC=FE=C8=CB<span lang=3D"EN-US">:</span></b><span lang=3D"=
EN-US"> heminhong (RD) &lt;<a href=3D"mailto:he.minhong@h3c.com">he.minhong=
@h3c.com</a>&gt;;
<a href=3D"mailto:Huaimo.chen@futurewei.com">Huaimo.chen@futurewei.com</a>;=
 <a href=3D"mailto:chenhuan6@chinatelecom.cn">
chenhuan6@chinatelecom.cn</a>; Wupeng (Baggio, VRP MKT) &lt;<a href=3D"mail=
to:baggio.wupeng@huawei.com">baggio.wupeng@huawei.com</a>&gt;;
<a href=3D"mailto:mehmet.toy@verizon.com">mehmet.toy@verizon.com</a>; <a hr=
ef=3D"mailto:caoc15@chinaunicom.cn">
caoc15@chinaunicom.cn</a>; <a href=3D"mailto:het21@chinaunicom.cn">het21@ch=
inaunicom.cn</a>;
<a href=3D"mailto:liulei.kddi@gmail.com">liulei.kddi@gmail.com</a>; <a href=
=3D"mailto:xufeng.liu.ietf@gmail.com">
xufeng.liu.ietf@gmail.com</a><br>
</span><b>=B3=AD=CB=CD<span lang=3D"EN-US">:</span></b><span lang=3D"EN-US"=
> <a href=3D"mailto:rtgwg@ietf.org">
rtgwg@ietf.org</a>; <a href=3D"mailto:spring@ietf.org">spring@ietf.org</a><=
br>
</span><b>=D6=F7=CC=E2<span lang=3D"EN-US">:</span></b><span lang=3D"EN-US"=
> RE: Two questions about the draft-hu-rtgwg-srv6-egress-protection-08<o:p>=
</o:p></span></span></p>
</div>
</div>
<p class=3D"MsoNormal" align=3D"left" style=3D"text-align:left"><span lang=
=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D">Hi minh=
ong:<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-indent:9.0pt"><span lang=3D"EN-US" sty=
le=3D"color:#1F497D">Question 1: draft-hu-rtgwg-srv6-egress-protection-08 c=
ompliance draft-ietf-spring-srv6-network-programming</span><span style=3D"f=
ont-family:=CB=CE=CC=E5;color:#1F497D">=A3=AC</span><span lang=3D"EN-US" st=
yle=3D"color:#1F497D">It
 use H.Encaps Encapsulating the Repair List</span><span style=3D"font-famil=
y:=CB=CE=CC=E5;color:#1F497D">=A1=A3</span><span lang=3D"EN-US" style=3D"co=
lor:#1F497D"><o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-indent:9.0pt"><span lang=3D"EN-US" sty=
le=3D"color:#1F497D">Question 2: Only if SL =3D=3D 0 or No SRH, It will exe=
cut the mirror behavior</span><span style=3D"font-family:=CB=CE=CC=E5;color=
:#1F497D">=A1=A3</span><span lang=3D"EN-US" style=3D"color:#1F497D">If
 the End Sid is the last sid,It will mirror behavior</span><span style=3D"f=
ont-family:=CB=CE=CC=E5;color:#1F497D">=A1=A3</span><span lang=3D"EN-US" st=
yle=3D"color:#1F497D">Or It will execut other protect behavior.<o:p></o:p><=
/span></p>
<p class=3D"MsoNormal" style=3D"text-indent:9.0pt"><span lang=3D"EN-US" sty=
le=3D"color:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-indent:9.0pt"><span lang=3D"EN-US" sty=
le=3D"color:#1F497D">Thanks<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"text-indent:9.0pt"><span lang=3D"EN-US" sty=
le=3D"color:#1F497D">Zhibo<o:p></o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" align=3D"left" style=3D"text-align:left"><b><span la=
ng=3D"EN-US" style=3D"font-size:11.0pt">From:</span></b><span lang=3D"EN-US=
" style=3D"font-size:11.0pt"> Heminhong [<a href=3D"mailto:he.minhong@h3c.c=
om">mailto:he.minhong@h3c.com</a>]
<br>
<b>Sent:</b> Wednesday, July 8, 2020 9:42 AM<br>
<b>To:</b> Huzhibo &lt;<a href=3D"mailto:huzhibo@huawei.com">huzhibo@huawei=
.com</a>&gt;; <a href=3D"mailto:Huaimo.chen@futurewei.com">
Huaimo.chen@futurewei.com</a>; <a href=3D"mailto:chenhuan6@chinatelecom.cn"=
>chenhuan6@chinatelecom.cn</a>; Wupeng (Baggio, VRP MKT) &lt;<a href=3D"mai=
lto:baggio.wupeng@huawei.com">baggio.wupeng@huawei.com</a>&gt;;
<a href=3D"mailto:mehmet.toy@verizon.com">mehmet.toy@verizon.com</a>; <a hr=
ef=3D"mailto:caoc15@chinaunicom.cn">
caoc15@chinaunicom.cn</a>; <a href=3D"mailto:het21@chinaunicom.cn">het21@ch=
inaunicom.cn</a>;
<a href=3D"mailto:liulei.kddi@gmail.com">liulei.kddi@gmail.com</a>; <a href=
=3D"mailto:xufeng.liu.ietf@gmail.com">
xufeng.liu.ietf@gmail.com</a><br>
<b>Cc:</b> <a href=3D"mailto:rtgwg@ietf.org">rtgwg@ietf.org</a>; <a href=3D=
"mailto:spring@ietf.org">
spring@ietf.org</a><br>
<b>Subject:</b> Two questions about the draft-hu-rtgwg-srv6-egress-protecti=
on-08<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" align=3D"left" style=3D"text-align:left"><span lang=
=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-=
family:&quot;Microsoft YaHei UI&quot;,sans-serif;color:black">Dear,<o:p></o=
:p></span></p>
<p class=3D"MsoListParagraph" style=3D"margin-left:18.0pt;text-indent:-18.0=
pt;mso-list:l0 level1 lfo2">
<![if !supportLists]><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-fa=
mily:&quot;Microsoft YaHei UI&quot;,sans-serif;color:black"><span style=3D"=
mso-list:Ignore">1.<span style=3D"font:7.0pt &quot;Times New Roman&quot;">&=
nbsp;&nbsp;&nbsp;&nbsp;
</span></span></span><![endif]><span lang=3D"EN-US" style=3D"font-size:10.0=
pt;font-family:&quot;Microsoft YaHei UI&quot;,sans-serif;color:black">About
</span><span lang=3D"EN-US" style=3D"font-size:12.0pt;font-family:=CB=CE=CC=
=E5">P1 </span><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-family:&=
quot;Microsoft YaHei UI&quot;,sans-serif;color:black">how to
</span><span lang=3D"EN-US" style=3D"font-size:12.0pt;font-family:=CB=CE=CC=
=E5;color:black">encapsulate the packet
</span><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-family:&quot;Mic=
rosoft YaHei UI&quot;,sans-serif;color:black"><o:p></o:p></span></p>
<p class=3D"MsoNormal" align=3D"left" style=3D"text-align:left;text-autospa=
ce:none"><span lang=3D"EN-US" style=3D"font-size:12.0pt;font-family:=CB=CE=
=CC=E5">draft-hu-rtgwg-srv6-egress-protection-07, the following description=
 :
</span><span style=3D"font-size:12.0pt;font-family:=CB=CE=CC=E5">=A1=B0<spa=
n lang=3D"EN-US">When PE3 fails, node P1 protects PE3 through sending the p=
acket to PE4 via the backup path pre-computed. P1
<span style=3D"color:red">modifies the packet</span> before sending it to P=
E4. The modified packet has destination PE4 with mirror SID A4:1::3, and SR=
H with PE3</span>=A1=AF<span lang=3D"EN-US">s VPN SID A3:1::B100 and the mi=
rror SID A4:1::3 (i.e., &quot;A3:1::B100, A4:1::3;
 SL=3D1&quot;). </span>=A1=B1<span lang=3D"EN-US"><o:p></o:p></span></span>=
</p>
<p class=3D"MsoNormal" align=3D"left" style=3D"text-align:left;text-autospa=
ce:none"><span lang=3D"EN-US" style=3D"font-size:12.0pt;font-family:=CB=CE=
=CC=E5">However</span><span style=3D"font-size:12.0pt;font-family:=CB=CE=CC=
=E5">=A3=AC<span lang=3D"EN-US">draft-hu-rtgwg-srv6-egress-protection-08,th=
e
 following description: &nbsp;</span>=A1=B0<span lang=3D"EN-US">When PE3 fa=
ils, P1 as PLR sends the packet to PE4 via the backup path pre-computed.&nb=
sp; P1
<span style=3D"color:red">encapsulates the packet</span> using H.Encaps bef=
ore sending it to PE4.</span>=A1=B1<span lang=3D"EN-US"><o:p></o:p></span><=
/span></p>
<p class=3D"MsoNormal" align=3D"left" style=3D"text-align:left;text-autospa=
ce:none"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" align=3D"left" style=3D"text-align:left;text-autospa=
ce:none"><span lang=3D"EN-US">2</span><span style=3D"font-family:=CB=CE=CC=
=E5">=A1=A2</span><span lang=3D"EN-US"><o:p></o:p></span></p>
<p class=3D"MsoNormal" align=3D"left" style=3D"text-align:left;text-autospa=
ce:none"><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;
<span style=3D"color:red">END SID: A2:1::B100</span><o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; *******&n=
bsp; *******&nbsp; VPN SID: A3:1::B100<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; [PE1]-----[P1]-----[PE3]---[CE2]&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp; PE3 Egress<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; / |&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp; |&amp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; | \&nbsp;&nbs=
p; /&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; PE4 Backup Egres=
s<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; /&nbsp; |&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp; |&amp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; |&nbsp; \ /&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; CEx Customer Edg=
e<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp; [CE1]&nbsp;&nbsp; |&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; |&amp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; |&nbsp;&nbsp; X&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Px&nbsp; Non-Provider Edge=
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; \&nbsp; |&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp; |&amp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; |&nbsp; / \&n=
bsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; *** SR Path<o:p>=
</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; \ |&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp; |&amp; &amp;&amp;&amp;&amp;&amp;&nbsp; | /&nbsp;&nbsp; \&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &amp;&amp;&amp; Backup Pat=
h<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; [PE2]-----[P2]-----[PE4]---[CE3]<=
o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp; VPN SID: A4:1::B100<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp; Mirror SID: A4:1::3, protect PE3<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Figure 2: PE4 Protect=
s Egress PE3 of SR Path<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp; Suppose that the p=
acket received by P1 is represented by Pkt =3D (SA =3D<o:p></o:p></span></p=
>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp; A1:1::, DA =3D A2:=
1::B100)Pkt0, where DA =3D A2:1::B100 is PE3's
<span style=3D"color:red">END</span> SID,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp; and Pkt0 is the re=
st of the packet.&nbsp; The encapsulated packet Pkt'<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;&nbsp; will be one of the=
 followings:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoListParagraph" style=3D"margin-left:33.75pt;text-indent:-18.=
0pt;mso-list:l1 level1 lfo4">
<![if !supportLists]><span lang=3D"EN-US" style=3D"font-family:Wingdings"><=
span style=3D"mso-list:Ignore">l<span style=3D"font:7.0pt &quot;Times New R=
oman&quot;">&nbsp;
</span></span></span><![endif]><span lang=3D"EN-US" style=3D"color:red">Pkt=
' =3D (T, Mirror SID A4:1::3) (A1:1::, A2:1::B100)( A3:1::B100, A2:1::B100)=
Pkt0, how to process?
<o:p></o:p></span></p>
<p class=3D"MsoListParagraph" style=3D"margin-left:33.75pt;text-indent:0cm"=
><span lang=3D"EN-US" style=3D"color:red"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoListParagraph" style=3D"margin-left:33.75pt;text-indent:0cm"=
><span lang=3D"EN-US" style=3D"color:red">Processing on the receiver or on =
the sender?<o:p></o:p></span></p>
<p class=3D"MsoListParagraph" style=3D"margin-left:33.75pt;text-indent:0cm"=
><span lang=3D"EN-US" style=3D"color:red"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoListParagraph" style=3D"margin-left:33.75pt;text-indent:0cm"=
><span lang=3D"EN-US" style=3D"color:red"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoPlainText"><span lang=3D"EN-US" style=3D"font-size:10.0pt;fo=
nt-family:&quot;Microsoft YaHei UI&quot;,sans-serif;color:black">Thanks for=
 your time, Looking forward to your reply.</span><span lang=3D"EN-US"><o:p>=
</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Best regards.<o:p></o:p></span>=
</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Sincerely yours,<o:p></o:p></sp=
an></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">minhong<o:p></o:p></span></p>
<p class=3D"MsoNormal" align=3D"left" style=3D"text-align:left"><span lang=
=3D"EN-US" style=3D"font-size:7.5pt;font-family:=BB=AA=CE=C4=CF=B8=BA=DA;co=
lor:gray">-----------------------------------------------------------------=
--------------------------------------------------------------------<br>
</span><span style=3D"font-size:7.5pt;font-family:=BB=AA=CE=C4=CF=B8=BA=DA;=
color:gray">=B1=BE=D3=CA=BC=FE=BC=B0=C6=E4=B8=BD=BC=FE=BA=AC=D3=D0=D0=C2=BB=
=AA=C8=FD=BC=AF=CD=C5=B5=C4=B1=A3=C3=DC=D0=C5=CF=A2=A3=AC=BD=F6=CF=DE=D3=DA=
=B7=A2=CB=CD=B8=F8=C9=CF=C3=E6=B5=D8=D6=B7=D6=D0=C1=D0=B3=F6<span lang=3D"E=
N-US"><br>
</span>=B5=C4=B8=F6=C8=CB=BB=F2=C8=BA=D7=E9=A1=A3=BD=FB=D6=B9=C8=CE=BA=CE=
=C6=E4=CB=FB=C8=CB=D2=D4=C8=CE=BA=CE=D0=CE=CA=BD=CA=B9=D3=C3=A3=A8=B0=FC=C0=
=A8=B5=AB=B2=BB=CF=DE=D3=DA=C8=AB=B2=BF=BB=F2=B2=BF=B7=D6=B5=D8=D0=B9=C2=B6=
=A1=A2=B8=B4=D6=C6=A1=A2<span lang=3D"EN-US"><br>
</span>=BB=F2=C9=A2=B7=A2=A3=A9=B1=BE=D3=CA=BC=FE=D6=D0=B5=C4=D0=C5=CF=A2=
=A1=A3=C8=E7=B9=FB=C4=FA=B4=ED=CA=D5=C1=CB=B1=BE=D3=CA=BC=FE=A3=AC=C7=EB=C4=
=FA=C1=A2=BC=B4=B5=E7=BB=B0=BB=F2=D3=CA=BC=FE=CD=A8=D6=AA=B7=A2=BC=FE=C8=CB=
=B2=A2=C9=BE=B3=FD=B1=BE<span lang=3D"EN-US"><br>
</span>=D3=CA=BC=FE=A3=A1<span lang=3D"EN-US"><br>
</span></span><span lang=3D"EN-US" style=3D"font-size:7.5pt;font-family:&qu=
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--_000_06CF729DA0D6854E8C1E5121AC3330DFAF6B8B8Ddggemm509mbxchi_--


From nobody Wed Jul  8 05:25:53 2020
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Subject: [spring] I-D Action: draft-ietf-spring-segment-routing-policy-08.txt
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A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Source Packet Routing in Networking WG of the IETF.

        Title           : Segment Routing Policy Architecture
        Authors         : Clarence Filsfils
                          Ketan Talaulikar
                          Daniel Voyer
                          Alex Bogdanov
                          Paul Mattes
	Filename        : draft-ietf-spring-segment-routing-policy-08.txt
	Pages           : 35
	Date            : 2020-07-07

Abstract:
   Segment Routing (SR) allows a headend node to steer a packet flow
   along any path.  Intermediate per-flow states are eliminated thanks
   to source routing.  The headend node steers a flow into an SR Policy.
   The header of a packet steered in an SR Policy is augmented with an
   ordered list of segments associated with that SR Policy.  This
   document details the concepts of SR Policy and steering into an SR
   Policy.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-spring-segment-routing-policy/

There are also htmlized versions available at:
https://tools.ietf.org/html/draft-ietf-spring-segment-routing-policy-08
https://datatracker.ietf.org/doc/html/draft-ietf-spring-segment-routing-policy-08

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-spring-segment-routing-policy-08


Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.

Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/



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Subject: Re: [spring] I-D Action: draft-ietf-spring-segment-routing-policy-08.txt
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Hi All,

We've just posted an update for the draft with the following changes:

- Clarification regarding signalling of SR Policy Name via protocols
- Updated security considerations section
- Updated text for SRv6 with inclusion of behaviour to align with draft-iet=
f-spring-network-programming
- Updated text with reference to draft-ietf-idr-segment-routing-te-policy f=
or BGP protocol specifics
- Other minor editorial comments

Thanks,
Ketan (on behalf of co-authors)

-----Original Message-----
From: spring <spring-bounces@ietf.org> On Behalf Of internet-drafts@ietf.or=
g
Sent: 08 July 2020 17:56
To: i-d-announce@ietf.org
Cc: spring@ietf.org
Subject: [spring] I-D Action: draft-ietf-spring-segment-routing-policy-08.t=
xt


A New Internet-Draft is available from the on-line Internet-Drafts director=
ies.
This draft is a work item of the Source Packet Routing in Networking WG of =
the IETF.

        Title           : Segment Routing Policy Architecture
        Authors         : Clarence Filsfils
                          Ketan Talaulikar
                          Daniel Voyer
                          Alex Bogdanov
                          Paul Mattes
	Filename        : draft-ietf-spring-segment-routing-policy-08.txt
	Pages           : 35
	Date            : 2020-07-07

Abstract:
   Segment Routing (SR) allows a headend node to steer a packet flow
   along any path.  Intermediate per-flow states are eliminated thanks
   to source routing.  The headend node steers a flow into an SR Policy.
   The header of a packet steered in an SR Policy is augmented with an
   ordered list of segments associated with that SR Policy.  This
   document details the concepts of SR Policy and steering into an SR
   Policy.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-spring-segment-routing-policy/

There are also htmlized versions available at:
https://tools.ietf.org/html/draft-ietf-spring-segment-routing-policy-08
https://datatracker.ietf.org/doc/html/draft-ietf-spring-segment-routing-pol=
icy-08

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=3Ddraft-ietf-spring-segment-routing-polic=
y-08


Please note that it may take a couple of minutes from the time of submissio=
n until the htmlized version and diff are available at tools.ietf.org.

Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/


_______________________________________________
spring mailing list
spring@ietf.org
https://www.ietf.org/mailman/listinfo/spring


From nobody Wed Jul  8 07:49:03 2020
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From: "Weiqiang Cheng" <chengweiqiang@chinamobile.com>
To: "'Joel Halpern'" <jmh@joelhalpern.com>, <spring@ietf.org>
Cc: "'Sander Steffann'" <sander@steffann.nl>
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Subject: Re: [spring] Final? design team charge
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Thanks a lot to Joel and other Chairs.

Hi Sanders and team,
It is very nice to work together with you all.=20
It seems possible and useful to apply for an archived email list.
Let's get started.

B.R.
Weiqiang Cheng


-----=D3=CA=BC=FE=D4=AD=BC=FE-----
=B7=A2=BC=FE=C8=CB: spring [mailto:spring-bounces@ietf.org] =B4=FA=B1=ED =
Joel Halpern
=B7=A2=CB=CD=CA=B1=BC=E4: 2020=C4=EA7=D4=C28=C8=D5 00:24
=CA=D5=BC=FE=C8=CB: spring@ietf.org
=D6=F7=CC=E2: [spring] Final? design team charge

Having gotten various volunteers, and considered what the WG needs, the=20
SPRING chairs have selected the design team for clarifying the SR over=20
IPv6 compression situation.

The Design team will be
Co-Chaired by:
     Cheng Weiqiang of China Mobile and
     Sanders Steffann of SJM Steffann Consultancy

The other members of the team are:
     Ron Bonica of Juniper
     Darren Dukes of Cisco
     Cheng Li of Huawei
     Peng Shaofu of ZTE
     Wim Henderickx of Nokia
     Chongfeng Xie of China Telecom

(We understand that some members may be on vacation.  We ask the chairs=20
to please get the design team up and running as fast as possible, and=20
deal with vacations as necessary.)

The design team is to produce (rough) consensus (of the DT) outputs to=20
the WG on two related topics:
1) What are the requirements for solutions to compressing segment=20
routing information for use over IPv6;
2) A comparison of proposed approaches to compressing segment routing=20
information for use over IPv6.

In both cases, assertions / requirements should be explicitly explained=20
and motivated.  Please do not assume that everyone has the same=20
perspective or assumptions.

We expect these results to take the form of Internet Drafts.  How the=20
design team does the development is up to them.  Note that while we are=20
asking for I-Ds, we are not assuming that these results will be=20
published as RFCs.  When the working group has progressed, we will see=20
if there is agreement as to the value of long term publication of this=20
material.
Also, as a reminder to both the design team and the working group, the=20
design team output is input to the working group.  It is not presumed to =

be a WG document until the WG actually adopts it.

If the design team has insights into the number of solutions (are=20
several already standardized?  is there value in picking one / some?)=20
this may be included in the requirements readout.  If the design team=20
can not agree, or does not think it is helpful to report this aspect,=20
that is also acceptable to the chairs.

While the chairs would like to see prompt work, we also want to see a=20
thorough job done on this task.  As such, we value quality of result=20
over time.  While there is some pressure, we ask that the design team=20
focus on reaching clear and useful agreements.  Thus, we are not asking=20
for any readout by IETF 108.  As a target, we would like to see a draft=20
to the WG by September 15, 2020.

If the design team makes enough progress that they have questions they=20
would like the WG to discuss at IETF 108, please let us know.

Yours,
Bruno, Jim, and Joel

_______________________________________________
spring mailing list
spring@ietf.org
https://www.ietf.org/mailman/listinfo/spring




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Hi,

As an individual contributor, please find below some proposed comments.

Thanks,
Regards,
Bruno

---
"A SR Replication segment allows a packet to be replicated from a replicati=
on node to downstream nodes."
May be adding "Each downstream node is reached by using a unicast segment o=
r SR policy."
(otherwise, the building of a multicast tree seem possibly within the scope)

-----
"a Replication segment is a logical segment"
- I'm not sure what you mean by "logical".
- My understanding is that the replication is a local segment as per RFC840=
2. i.e. it is instantiated on one single node. Can you make this clear in t=
he document?

-----

"A Downstream Node could be
   represented by the node's Node SID (i.e. it does not matter how
   traffic gets to the Downstream Node, whether it's directly connected
   or not), or in case of a directly connected node it could be
   represented by the Adjacency SID (for the interface connecting to the
   directly connected Leaf Node).  Alternatively, a Downstream Node
   could be represented by a SID-list or a Segment Routing Policy
   [I-D.ietf-spring-segment-routing-policy] that partially/fully
   specifies the explicit path from the Replication Node to the
   Downstream Node, or even represented by another Replication segment."

This definition uses only "could", "alternatively", "or even".
Would it be possible to phrase it to describe what _it is_ ?
On the list, Andrew proposed the following text "downstreamIngressReplicati=
onSid and SID Path". Which may be could be phrased as: a unicast SR policy,=
 (possibly) followed by a replication segment. And if you extend the SR-Pol=
icy to include the use of a Replication segment, may be specification of a =
branch could simply be 'one SR policy'.

-----
"  For the root of a Multi-point service, the Replication SID
   SHOULD be considered to be the equivalent of Binding SID
   [I-D.ietf-spring-segment-routing-policy] of a Segment Routing Policy.
   At a downstream node of the Multi-point service, the Replication SID
   MAY be used to identify that portion of the Multi-point service."

>From this text, it's not clear whether the replication SID/segment is a loc=
al segment, or a global segment, or something new to be defined.
Why not replacing the above text with
" the Replication SID
   SHOULD be considered to be the equivalent of Binding SID
   [I-D.ietf-spring-segment-routing-policy] of a Segment Routing Policy."

-------
" o  When the Active Segment [RFC8402] is the Replication SID.  In this
      case, the operation for a replicated copy is CONTINUE."

"CONTINUE" would mean that the segment is not a local segment.
So the document really needs to clarify whether the replication SID/segment=
 is a local segment, or a global segment, or something new to be defined.

-----
"  o  On the root of a Multi-point service, based on local policy-based
      routing.  In this case, the operation for a replicated copy is
      PUSH."

Introduction states that the building of a tree (hence the root) is out of =
scope of this document.

Could the section 2 "Replication Segment" of this document be focused on th=
e definition and specification of this local replication segment?

-----
"  If a Downstream Node is an egress (aka leaf) of the Multi-point
   service, i.e. no further replication is needed, then that leaf node's
   Replication segment will not have any Replication State and the
   operation is NEXT.  Notice that the segment on the leaf node is still
   referred to as a Replication segment for the purpose of
   generalization.

   A node can be a bud node, i.e. it is a replication node and a leaf
   node of a Multi-point service at the same time
   [I-D.voyer-pim-sr-p2mp-policy].  In this case, the Replication
   segment's Replication State includes a branch with the Downstream
   Node being itself and the operation for the replicated copy is NEXT."

same comment: Could the section 2 "Replication Segment" of this document be=
 focused on the definition and specification of this local replication segm=
ent?

----
"Replication segments apply equally to both SR-MPLS and SRv6 instantiations=
 of Segment Routing."

May be, but there are differences between both data planes and the draft do=
es not talk about those differences.
e.g. for SR-MPLS, labels are local to a node (including labels of global se=
gments). Hence it's not crystal clear to me if/how a segment/label can foll=
ow a replication segment. Because that label would be received by N nodes, =
which may understand it differently (different FEC). How is this handled? I=
n essence, the situation is similar to the use of anycast SID. So this seem=
s possible to handle it, but may be not trivial up to the point of not ment=
ioning it. (some options are using upstream allocated labels with context f=
orwarding tables, enforcing that all receivers use the same FEC for the lab=
el. cf the spring anycast draft)


e.g. for SRv6, the use of binding SID implies the use of new (another) IPv6=
 encapsulation [1]. So if N consecutive replication segments are used along=
 the path, N IPv6 encapsulation are performed. I'm not seen a provision for=
 performing the N de-encapsulations. How is this handled, on which node(s)?

[1] https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programming-=
16#section-5

___________________________________________________________________________=
______________________________________________

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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
" Name=3D"Table Subtle 1"/>
<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
" Name=3D"Table Subtle 2"/>
<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
" Name=3D"Table Web 1"/>
<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
" Name=3D"Table Web 2"/>
<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
" Name=3D"Table Web 3"/>
<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
" Name=3D"Balloon Text"/>
<w:LsdException Locked=3D"false" Priority=3D"39" Name=3D"Table Grid"/>
<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
" Name=3D"Table Theme"/>
<w:LsdException Locked=3D"false" SemiHidden=3D"true" Name=3D"Placeholder Te=
xt"/>
<w:LsdException Locked=3D"false" Priority=3D"1" QFormat=3D"true" Name=3D"No=
 Spacing"/>
<w:LsdException Locked=3D"false" Priority=3D"60" Name=3D"Light Shading"/>
<w:LsdException Locked=3D"false" Priority=3D"61" Name=3D"Light List"/>
<w:LsdException Locked=3D"false" Priority=3D"62" Name=3D"Light Grid"/>
<w:LsdException Locked=3D"false" Priority=3D"63" Name=3D"Medium Shading 1"/>
<w:LsdException Locked=3D"false" Priority=3D"64" Name=3D"Medium Shading 2"/>
<w:LsdException Locked=3D"false" Priority=3D"65" Name=3D"Medium List 1"/>
<w:LsdException Locked=3D"false" Priority=3D"66" Name=3D"Medium List 2"/>
<w:LsdException Locked=3D"false" Priority=3D"67" Name=3D"Medium Grid 1"/>
<w:LsdException Locked=3D"false" Priority=3D"68" Name=3D"Medium Grid 2"/>
<w:LsdException Locked=3D"false" Priority=3D"69" Name=3D"Medium Grid 3"/>
<w:LsdException Locked=3D"false" Priority=3D"70" Name=3D"Dark List"/>
<w:LsdException Locked=3D"false" Priority=3D"71" Name=3D"Colorful Shading"/>
<w:LsdException Locked=3D"false" Priority=3D"72" Name=3D"Colorful List"/>
<w:LsdException Locked=3D"false" Priority=3D"73" Name=3D"Colorful Grid"/>
<w:LsdException Locked=3D"false" Priority=3D"60" Name=3D"Light Shading Acce=
nt 1"/>
<w:LsdException Locked=3D"false" Priority=3D"61" Name=3D"Light List Accent =
1"/>
<w:LsdException Locked=3D"false" Priority=3D"62" Name=3D"Light Grid Accent =
1"/>
<w:LsdException Locked=3D"false" Priority=3D"63" Name=3D"Medium Shading 1 A=
ccent 1"/>
<w:LsdException Locked=3D"false" Priority=3D"64" Name=3D"Medium Shading 2 A=
ccent 1"/>
<w:LsdException Locked=3D"false" Priority=3D"65" Name=3D"Medium List 1 Acce=
nt 1"/>
<w:LsdException Locked=3D"false" SemiHidden=3D"true" Name=3D"Revision"/>
<w:LsdException Locked=3D"false" Priority=3D"34" QFormat=3D"true" Name=3D"L=
ist Paragraph"/>
<w:LsdException Locked=3D"false" Priority=3D"29" QFormat=3D"true" Name=3D"Q=
uote"/>
<w:LsdException Locked=3D"false" Priority=3D"30" QFormat=3D"true" Name=3D"I=
ntense Quote"/>
<w:LsdException Locked=3D"false" Priority=3D"66" Name=3D"Medium List 2 Acce=
nt 1"/>
<w:LsdException Locked=3D"false" Priority=3D"67" Name=3D"Medium Grid 1 Acce=
nt 1"/>
<w:LsdException Locked=3D"false" Priority=3D"68" Name=3D"Medium Grid 2 Acce=
nt 1"/>
<w:LsdException Locked=3D"false" Priority=3D"69" Name=3D"Medium Grid 3 Acce=
nt 1"/>
<w:LsdException Locked=3D"false" Priority=3D"70" Name=3D"Dark List Accent 1=
"/>
<w:LsdException Locked=3D"false" Priority=3D"71" Name=3D"Colorful Shading A=
ccent 1"/>
<w:LsdException Locked=3D"false" Priority=3D"72" Name=3D"Colorful List Acce=
nt 1"/>
<w:LsdException Locked=3D"false" Priority=3D"73" Name=3D"Colorful Grid Acce=
nt 1"/>
<w:LsdException Locked=3D"false" Priority=3D"60" Name=3D"Light Shading Acce=
nt 2"/>
<w:LsdException Locked=3D"false" Priority=3D"61" Name=3D"Light List Accent =
2"/>
<w:LsdException Locked=3D"false" Priority=3D"62" Name=3D"Light Grid Accent =
2"/>
<w:LsdException Locked=3D"false" Priority=3D"63" Name=3D"Medium Shading 1 A=
ccent 2"/>
<w:LsdException Locked=3D"false" Priority=3D"64" Name=3D"Medium Shading 2 A=
ccent 2"/>
<w:LsdException Locked=3D"false" Priority=3D"65" Name=3D"Medium List 1 Acce=
nt 2"/>
<w:LsdException Locked=3D"false" Priority=3D"66" Name=3D"Medium List 2 Acce=
nt 2"/>
<w:LsdException Locked=3D"false" Priority=3D"67" Name=3D"Medium Grid 1 Acce=
nt 2"/>
<w:LsdException Locked=3D"false" Priority=3D"68" Name=3D"Medium Grid 2 Acce=
nt 2"/>
<w:LsdException Locked=3D"false" Priority=3D"69" Name=3D"Medium Grid 3 Acce=
nt 2"/>
<w:LsdException Locked=3D"false" Priority=3D"70" Name=3D"Dark List Accent 2=
"/>
<w:LsdException Locked=3D"false" Priority=3D"71" Name=3D"Colorful Shading A=
ccent 2"/>
<w:LsdException Locked=3D"false" Priority=3D"72" Name=3D"Colorful List Acce=
nt 2"/>
<w:LsdException Locked=3D"false" Priority=3D"73" Name=3D"Colorful Grid Acce=
nt 2"/>
<w:LsdException Locked=3D"false" Priority=3D"60" Name=3D"Light Shading Acce=
nt 3"/>
<w:LsdException Locked=3D"false" Priority=3D"61" Name=3D"Light List Accent =
3"/>
<w:LsdException Locked=3D"false" Priority=3D"62" Name=3D"Light Grid Accent =
3"/>
<w:LsdException Locked=3D"false" Priority=3D"63" Name=3D"Medium Shading 1 A=
ccent 3"/>
<w:LsdException Locked=3D"false" Priority=3D"64" Name=3D"Medium Shading 2 A=
ccent 3"/>
<w:LsdException Locked=3D"false" Priority=3D"65" Name=3D"Medium List 1 Acce=
nt 3"/>
<w:LsdException Locked=3D"false" Priority=3D"66" Name=3D"Medium List 2 Acce=
nt 3"/>
<w:LsdException Locked=3D"false" Priority=3D"67" Name=3D"Medium Grid 1 Acce=
nt 3"/>
<w:LsdException Locked=3D"false" Priority=3D"68" Name=3D"Medium Grid 2 Acce=
nt 3"/>
<w:LsdException Locked=3D"false" Priority=3D"69" Name=3D"Medium Grid 3 Acce=
nt 3"/>
<w:LsdException Locked=3D"false" Priority=3D"70" Name=3D"Dark List Accent 3=
"/>
<w:LsdException Locked=3D"false" Priority=3D"71" Name=3D"Colorful Shading A=
ccent 3"/>
<w:LsdException Locked=3D"false" Priority=3D"72" Name=3D"Colorful List Acce=
nt 3"/>
<w:LsdException Locked=3D"false" Priority=3D"73" Name=3D"Colorful Grid Acce=
nt 3"/>
<w:LsdException Locked=3D"false" Priority=3D"60" Name=3D"Light Shading Acce=
nt 4"/>
<w:LsdException Locked=3D"false" Priority=3D"61" Name=3D"Light List Accent =
4"/>
<w:LsdException Locked=3D"false" Priority=3D"62" Name=3D"Light Grid Accent =
4"/>
<w:LsdException Locked=3D"false" Priority=3D"63" Name=3D"Medium Shading 1 A=
ccent 4"/>
<w:LsdException Locked=3D"false" Priority=3D"64" Name=3D"Medium Shading 2 A=
ccent 4"/>
<w:LsdException Locked=3D"false" Priority=3D"65" Name=3D"Medium List 1 Acce=
nt 4"/>
<w:LsdException Locked=3D"false" Priority=3D"66" Name=3D"Medium List 2 Acce=
nt 4"/>
<w:LsdException Locked=3D"false" Priority=3D"67" Name=3D"Medium Grid 1 Acce=
nt 4"/>
<w:LsdException Locked=3D"false" Priority=3D"68" Name=3D"Medium Grid 2 Acce=
nt 4"/>
<w:LsdException Locked=3D"false" Priority=3D"69" Name=3D"Medium Grid 3 Acce=
nt 4"/>
<w:LsdException Locked=3D"false" Priority=3D"70" Name=3D"Dark List Accent 4=
"/>
<w:LsdException Locked=3D"false" Priority=3D"71" Name=3D"Colorful Shading A=
ccent 4"/>
<w:LsdException Locked=3D"false" Priority=3D"72" Name=3D"Colorful List Acce=
nt 4"/>
<w:LsdException Locked=3D"false" Priority=3D"73" Name=3D"Colorful Grid Acce=
nt 4"/>
<w:LsdException Locked=3D"false" Priority=3D"60" Name=3D"Light Shading Acce=
nt 5"/>
<w:LsdException Locked=3D"false" Priority=3D"61" Name=3D"Light List Accent =
5"/>
<w:LsdException Locked=3D"false" Priority=3D"62" Name=3D"Light Grid Accent =
5"/>
<w:LsdException Locked=3D"false" Priority=3D"63" Name=3D"Medium Shading 1 A=
ccent 5"/>
<w:LsdException Locked=3D"false" Priority=3D"64" Name=3D"Medium Shading 2 A=
ccent 5"/>
<w:LsdException Locked=3D"false" Priority=3D"65" Name=3D"Medium List 1 Acce=
nt 5"/>
<w:LsdException Locked=3D"false" Priority=3D"66" Name=3D"Medium List 2 Acce=
nt 5"/>
<w:LsdException Locked=3D"false" Priority=3D"67" Name=3D"Medium Grid 1 Acce=
nt 5"/>
<w:LsdException Locked=3D"false" Priority=3D"68" Name=3D"Medium Grid 2 Acce=
nt 5"/>
<w:LsdException Locked=3D"false" Priority=3D"69" Name=3D"Medium Grid 3 Acce=
nt 5"/>
<w:LsdException Locked=3D"false" Priority=3D"70" Name=3D"Dark List Accent 5=
"/>
<w:LsdException Locked=3D"false" Priority=3D"71" Name=3D"Colorful Shading A=
ccent 5"/>
<w:LsdException Locked=3D"false" Priority=3D"72" Name=3D"Colorful List Acce=
nt 5"/>
<w:LsdException Locked=3D"false" Priority=3D"73" Name=3D"Colorful Grid Acce=
nt 5"/>
<w:LsdException Locked=3D"false" Priority=3D"60" Name=3D"Light Shading Acce=
nt 6"/>
<w:LsdException Locked=3D"false" Priority=3D"61" Name=3D"Light List Accent =
6"/>
<w:LsdException Locked=3D"false" Priority=3D"62" Name=3D"Light Grid Accent =
6"/>
<w:LsdException Locked=3D"false" Priority=3D"63" Name=3D"Medium Shading 1 A=
ccent 6"/>
<w:LsdException Locked=3D"false" Priority=3D"64" Name=3D"Medium Shading 2 A=
ccent 6"/>
<w:LsdException Locked=3D"false" Priority=3D"65" Name=3D"Medium List 1 Acce=
nt 6"/>
<w:LsdException Locked=3D"false" Priority=3D"66" Name=3D"Medium List 2 Acce=
nt 6"/>
<w:LsdException Locked=3D"false" Priority=3D"67" Name=3D"Medium Grid 1 Acce=
nt 6"/>
<w:LsdException Locked=3D"false" Priority=3D"68" Name=3D"Medium Grid 2 Acce=
nt 6"/>
<w:LsdException Locked=3D"false" Priority=3D"69" Name=3D"Medium Grid 3 Acce=
nt 6"/>
<w:LsdException Locked=3D"false" Priority=3D"70" Name=3D"Dark List Accent 6=
"/>
<w:LsdException Locked=3D"false" Priority=3D"71" Name=3D"Colorful Shading A=
ccent 6"/>
<w:LsdException Locked=3D"false" Priority=3D"72" Name=3D"Colorful List Acce=
nt 6"/>
<w:LsdException Locked=3D"false" Priority=3D"73" Name=3D"Colorful Grid Acce=
nt 6"/>
<w:LsdException Locked=3D"false" Priority=3D"19" QFormat=3D"true" Name=3D"S=
ubtle Emphasis"/>
<w:LsdException Locked=3D"false" Priority=3D"21" QFormat=3D"true" Name=3D"I=
ntense Emphasis"/>
<w:LsdException Locked=3D"false" Priority=3D"31" QFormat=3D"true" Name=3D"S=
ubtle Reference"/>
<w:LsdException Locked=3D"false" Priority=3D"32" QFormat=3D"true" Name=3D"I=
ntense Reference"/>
<w:LsdException Locked=3D"false" Priority=3D"33" QFormat=3D"true" Name=3D"B=
ook Title"/>
<w:LsdException Locked=3D"false" Priority=3D"37" SemiHidden=3D"true" Unhide=
WhenUsed=3D"true" Name=3D"Bibliography"/>
<w:LsdException Locked=3D"false" Priority=3D"39" SemiHidden=3D"true" Unhide=
WhenUsed=3D"true" QFormat=3D"true" Name=3D"TOC Heading"/>
<w:LsdException Locked=3D"false" Priority=3D"41" Name=3D"Plain Table 1"/>
<w:LsdException Locked=3D"false" Priority=3D"42" Name=3D"Plain Table 2"/>
<w:LsdException Locked=3D"false" Priority=3D"43" Name=3D"Plain Table 3"/>
<w:LsdException Locked=3D"false" Priority=3D"44" Name=3D"Plain Table 4"/>
<w:LsdException Locked=3D"false" Priority=3D"45" Name=3D"Plain Table 5"/>
<w:LsdException Locked=3D"false" Priority=3D"40" Name=3D"Grid Table Light"/>
<w:LsdException Locked=3D"false" Priority=3D"46" Name=3D"Grid Table 1 Light=
"/>
<w:LsdException Locked=3D"false" Priority=3D"47" Name=3D"Grid Table 2"/>
<w:LsdException Locked=3D"false" Priority=3D"48" Name=3D"Grid Table 3"/>
<w:LsdException Locked=3D"false" Priority=3D"49" Name=3D"Grid Table 4"/>
<w:LsdException Locked=3D"false" Priority=3D"50" Name=3D"Grid Table 5 Dark"=
/>
<w:LsdException Locked=3D"false" Priority=3D"51" Name=3D"Grid Table 6 Color=
ful"/>
<w:LsdException Locked=3D"false" Priority=3D"52" Name=3D"Grid Table 7 Color=
ful"/>
<w:LsdException Locked=3D"false" Priority=3D"46" Name=3D"Grid Table 1 Light=
 Accent 1"/>
<w:LsdException Locked=3D"false" Priority=3D"47" Name=3D"Grid Table 2 Accen=
t 1"/>
<w:LsdException Locked=3D"false" Priority=3D"48" Name=3D"Grid Table 3 Accen=
t 1"/>
<w:LsdException Locked=3D"false" Priority=3D"49" Name=3D"Grid Table 4 Accen=
t 1"/>
<w:LsdException Locked=3D"false" Priority=3D"50" Name=3D"Grid Table 5 Dark =
Accent 1"/>
<w:LsdException Locked=3D"false" Priority=3D"51" Name=3D"Grid Table 6 Color=
ful Accent 1"/>
<w:LsdException Locked=3D"false" Priority=3D"52" Name=3D"Grid Table 7 Color=
ful Accent 1"/>
<w:LsdException Locked=3D"false" Priority=3D"46" Name=3D"Grid Table 1 Light=
 Accent 2"/>
<w:LsdException Locked=3D"false" Priority=3D"47" Name=3D"Grid Table 2 Accen=
t 2"/>
<w:LsdException Locked=3D"false" Priority=3D"48" Name=3D"Grid Table 3 Accen=
t 2"/>
<w:LsdException Locked=3D"false" Priority=3D"49" Name=3D"Grid Table 4 Accen=
t 2"/>
<w:LsdException Locked=3D"false" Priority=3D"50" Name=3D"Grid Table 5 Dark =
Accent 2"/>
<w:LsdException Locked=3D"false" Priority=3D"51" Name=3D"Grid Table 6 Color=
ful Accent 2"/>
<w:LsdException Locked=3D"false" Priority=3D"52" Name=3D"Grid Table 7 Color=
ful Accent 2"/>
<w:LsdException Locked=3D"false" Priority=3D"46" Name=3D"Grid Table 1 Light=
 Accent 3"/>
<w:LsdException Locked=3D"false" Priority=3D"47" Name=3D"Grid Table 2 Accen=
t 3"/>
<w:LsdException Locked=3D"false" Priority=3D"48" Name=3D"Grid Table 3 Accen=
t 3"/>
<w:LsdException Locked=3D"false" Priority=3D"49" Name=3D"Grid Table 4 Accen=
t 3"/>
<w:LsdException Locked=3D"false" Priority=3D"50" Name=3D"Grid Table 5 Dark =
Accent 3"/>
<w:LsdException Locked=3D"false" Priority=3D"51" Name=3D"Grid Table 6 Color=
ful Accent 3"/>
<w:LsdException Locked=3D"false" Priority=3D"52" Name=3D"Grid Table 7 Color=
ful Accent 3"/>
<w:LsdException Locked=3D"false" Priority=3D"46" Name=3D"Grid Table 1 Light=
 Accent 4"/>
<w:LsdException Locked=3D"false" Priority=3D"47" Name=3D"Grid Table 2 Accen=
t 4"/>
<w:LsdException Locked=3D"false" Priority=3D"48" Name=3D"Grid Table 3 Accen=
t 4"/>
<w:LsdException Locked=3D"false" Priority=3D"49" Name=3D"Grid Table 4 Accen=
t 4"/>
<w:LsdException Locked=3D"false" Priority=3D"50" Name=3D"Grid Table 5 Dark =
Accent 4"/>
<w:LsdException Locked=3D"false" Priority=3D"51" Name=3D"Grid Table 6 Color=
ful Accent 4"/>
<w:LsdException Locked=3D"false" Priority=3D"52" Name=3D"Grid Table 7 Color=
ful Accent 4"/>
<w:LsdException Locked=3D"false" Priority=3D"46" Name=3D"Grid Table 1 Light=
 Accent 5"/>
<w:LsdException Locked=3D"false" Priority=3D"47" Name=3D"Grid Table 2 Accen=
t 5"/>
<w:LsdException Locked=3D"false" Priority=3D"48" Name=3D"Grid Table 3 Accen=
t 5"/>
<w:LsdException Locked=3D"false" Priority=3D"49" Name=3D"Grid Table 4 Accen=
t 5"/>
<w:LsdException Locked=3D"false" Priority=3D"50" Name=3D"Grid Table 5 Dark =
Accent 5"/>
<w:LsdException Locked=3D"false" Priority=3D"51" Name=3D"Grid Table 6 Color=
ful Accent 5"/>
<w:LsdException Locked=3D"false" Priority=3D"52" Name=3D"Grid Table 7 Color=
ful Accent 5"/>
<w:LsdException Locked=3D"false" Priority=3D"46" Name=3D"Grid Table 1 Light=
 Accent 6"/>
<w:LsdException Locked=3D"false" Priority=3D"47" Name=3D"Grid Table 2 Accen=
t 6"/>
<w:LsdException Locked=3D"false" Priority=3D"48" Name=3D"Grid Table 3 Accen=
t 6"/>
<w:LsdException Locked=3D"false" Priority=3D"49" Name=3D"Grid Table 4 Accen=
t 6"/>
<w:LsdException Locked=3D"false" Priority=3D"50" Name=3D"Grid Table 5 Dark =
Accent 6"/>
<w:LsdException Locked=3D"false" Priority=3D"51" Name=3D"Grid Table 6 Color=
ful Accent 6"/>
<w:LsdException Locked=3D"false" Priority=3D"52" Name=3D"Grid Table 7 Color=
ful Accent 6"/>
<w:LsdException Locked=3D"false" Priority=3D"46" Name=3D"List Table 1 Light=
"/>
<w:LsdException Locked=3D"false" Priority=3D"47" Name=3D"List Table 2"/>
<w:LsdException Locked=3D"false" Priority=3D"48" Name=3D"List Table 3"/>
<w:LsdException Locked=3D"false" Priority=3D"49" Name=3D"List Table 4"/>
<w:LsdException Locked=3D"false" Priority=3D"50" Name=3D"List Table 5 Dark"=
/>
<w:LsdException Locked=3D"false" Priority=3D"51" Name=3D"List Table 6 Color=
ful"/>
<w:LsdException Locked=3D"false" Priority=3D"52" Name=3D"List Table 7 Color=
ful"/>
<w:LsdException Locked=3D"false" Priority=3D"46" Name=3D"List Table 1 Light=
 Accent 1"/>
<w:LsdException Locked=3D"false" Priority=3D"47" Name=3D"List Table 2 Accen=
t 1"/>
<w:LsdException Locked=3D"false" Priority=3D"48" Name=3D"List Table 3 Accen=
t 1"/>
<w:LsdException Locked=3D"false" Priority=3D"49" Name=3D"List Table 4 Accen=
t 1"/>
<w:LsdException Locked=3D"false" Priority=3D"50" Name=3D"List Table 5 Dark =
Accent 1"/>
<w:LsdException Locked=3D"false" Priority=3D"51" Name=3D"List Table 6 Color=
ful Accent 1"/>
<w:LsdException Locked=3D"false" Priority=3D"52" Name=3D"List Table 7 Color=
ful Accent 1"/>
<w:LsdException Locked=3D"false" Priority=3D"46" Name=3D"List Table 1 Light=
 Accent 2"/>
<w:LsdException Locked=3D"false" Priority=3D"47" Name=3D"List Table 2 Accen=
t 2"/>
<w:LsdException Locked=3D"false" Priority=3D"48" Name=3D"List Table 3 Accen=
t 2"/>
<w:LsdException Locked=3D"false" Priority=3D"49" Name=3D"List Table 4 Accen=
t 2"/>
<w:LsdException Locked=3D"false" Priority=3D"50" Name=3D"List Table 5 Dark =
Accent 2"/>
<w:LsdException Locked=3D"false" Priority=3D"51" Name=3D"List Table 6 Color=
ful Accent 2"/>
<w:LsdException Locked=3D"false" Priority=3D"52" Name=3D"List Table 7 Color=
ful Accent 2"/>
<w:LsdException Locked=3D"false" Priority=3D"46" Name=3D"List Table 1 Light=
 Accent 3"/>
<w:LsdException Locked=3D"false" Priority=3D"47" Name=3D"List Table 2 Accen=
t 3"/>
<w:LsdException Locked=3D"false" Priority=3D"48" Name=3D"List Table 3 Accen=
t 3"/>
<w:LsdException Locked=3D"false" Priority=3D"49" Name=3D"List Table 4 Accen=
t 3"/>
<w:LsdException Locked=3D"false" Priority=3D"50" Name=3D"List Table 5 Dark =
Accent 3"/>
<w:LsdException Locked=3D"false" Priority=3D"51" Name=3D"List Table 6 Color=
ful Accent 3"/>
<w:LsdException Locked=3D"false" Priority=3D"52" Name=3D"List Table 7 Color=
ful Accent 3"/>
<w:LsdException Locked=3D"false" Priority=3D"46" Name=3D"List Table 1 Light=
 Accent 4"/>
<w:LsdException Locked=3D"false" Priority=3D"47" Name=3D"List Table 2 Accen=
t 4"/>
<w:LsdException Locked=3D"false" Priority=3D"48" Name=3D"List Table 3 Accen=
t 4"/>
<w:LsdException Locked=3D"false" Priority=3D"49" Name=3D"List Table 4 Accen=
t 4"/>
<w:LsdException Locked=3D"false" Priority=3D"50" Name=3D"List Table 5 Dark =
Accent 4"/>
<w:LsdException Locked=3D"false" Priority=3D"51" Name=3D"List Table 6 Color=
ful Accent 4"/>
<w:LsdException Locked=3D"false" Priority=3D"52" Name=3D"List Table 7 Color=
ful Accent 4"/>
<w:LsdException Locked=3D"false" Priority=3D"46" Name=3D"List Table 1 Light=
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35.4pt">
<div class=3D"WordSection1">
<p class=3D"MsoNormal">Hi,<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S">As an individual contributor, please find below some proposed comments.<=
o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S">Thanks,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S">Regards,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S">Bruno<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S">---<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S">&quot;A SR Replication segment allows a packet to be replicated from a r=
eplication node to downstream nodes.&quot;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S">May be adding &quot;Each downstream node is reached by using a unicast s=
egment or SR policy.&quot;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S">(otherwise, the building of a multicast tree seem possibly within the sc=
ope)<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S">-----<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S">&quot;a Replication segment is a logical segment&quot;<o:p></o:p></span>=
</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S">- I'm not sure what you mean by &quot;logical&quot;.<o:p></o:p></span></=
p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S">- My understanding is that the replication is a local segment as per RFC=
8402. i.e. it is instantiated on one single node. Can you make this clear i=
n the document?<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S">-----<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S">&quot;A Downstream Node could be<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;
</span>represented by the node's Node SID (i.e. it does not matter how<o:p>=
</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;
</span>traffic gets to the Downstream Node, whether it's directly connected=
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;
</span>or not), or in case of a directly connected node it could be<o:p></o=
:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;
</span>represented by the Adjacency SID (for the interface connecting to th=
e<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;
</span>directly connected Leaf Node).<span style=3D"mso-spacerun:yes">&nbsp=
; </span>Alternatively, a Downstream Node<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;
</span>could be represented by a SID-list or a Segment Routing Policy<o:p><=
/o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;
</span>[I-<span class=3D"SpellE">D.ietf</span>-spring-segment-routing-polic=
y] that partially/fully<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;
</span>specifies the explicit path from the Replication Node to the<o:p></o=
:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;
</span>Downstream Node, or even represented by another Replication segment.=
&quot;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;
</span><o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S">This definition uses only &quot;could&quot;, &quot;alternatively&quot;, =
&quot;or even&quot;.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S">Would it be possible to phrase it to describe what _it is_ ?<o:p></o:p><=
/span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S">On the list, Andrew proposed the following text &quot;<span class=3D"Spe=
llE">downstreamIngressReplicationSid</span> and SID Path&quot;. Which may b=
e could be phrased as: a unicast SR policy, (possibly)
 followed by a replication segment. And if you extend the SR-Policy to incl=
ude the use of a Replication segment, may be specification of a branch coul=
d simply be 'one SR policy'.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S">-----<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S">&quot;<span style=3D"mso-spacerun:yes">&nbsp;
</span>For the root of a Multi-point service, the Replication SID<o:p></o:p=
></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;
</span>SHOULD be considered to be the equivalent of Binding SID<o:p></o:p><=
/span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;
</span>[I-<span class=3D"SpellE">D.ietf</span>-spring-segment-routing-polic=
y] of a Segment Routing Policy.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;
</span>At a downstream node of the Multi-point service, the Replication SID=
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;
</span>MAY be used to identify that portion of the Multi-point service.&quo=
t;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;
</span><o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S">From this text, it's not clear whether the replication SID/segment is a =
local segment, or a global segment, or something new to be defined.<o:p></o=
:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S">Why not replacing the above text with<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S">&quot; the Replication SID<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;
</span>SHOULD be considered to be the equivalent of Binding SID<o:p></o:p><=
/span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;
</span>[I-<span class=3D"SpellE">D.ietf</span>-spring-segment-routing-polic=
y] of a Segment Routing Policy.&quot;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S">-------<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S">&quot; o<span style=3D"mso-spacerun:yes">&nbsp;
</span>When the Active Segment [RFC8402] is the Replication SID.<span style=
=3D"mso-spacerun:yes">&nbsp;
</span>In this<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>case, the operation for a replicated copy is CONTINUE.&quot;<o:p></o=
:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S">&quot;CONTINUE&quot; would mean that the segment is not a local segment.=
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S">So the document really needs to clarify whether the replication SID/segm=
ent is a local segment, or a global segment, or something new to be defined=
.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S">-----<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S">&quot;<span style=3D"mso-spacerun:yes">&nbsp;
</span>o<span style=3D"mso-spacerun:yes">&nbsp; </span>On the root of a Mul=
ti-point service, based on local policy-based<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>routing.<span style=3D"mso-spacerun:yes">&nbsp; </span>In this case,=
 the operation for a replicated copy is<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span>PUSH.&quot;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S"><span style=3D"mso-tab-count:1">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span style=3D"mso-spacerun:yes">&nbsp; </span><o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S">Introduction states that the building of a tree (hence the root) is out =
of scope of this document.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S">Could the section 2 &quot;Replication Segment&quot; of this document be =
focused on the definition and specification of this local replication segme=
nt?<span style=3D"mso-tab-count:1">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;
</span><span style=3D"mso-spacerun:yes">&nbsp; </span><o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S">-----<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S">&quot;<span style=3D"mso-spacerun:yes">&nbsp;
</span>If a Downstream Node is an egress (aka leaf) of the Multi-point<o:p>=
</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;
</span>service, i.e. no further replication is needed, then that leaf node'=
s<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;
</span>Replication segment will not have any Replication State and the<o:p>=
</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;
</span>operation is NEXT.<span style=3D"mso-spacerun:yes">&nbsp; </span>Not=
ice that the segment on the leaf node is still<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;
</span>referred to as a Replication segment for the purpose of<o:p></o:p></=
span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;
</span>generalization.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;
</span>A node can be a bud node, i.e. it is a replication node and a leaf<o=
:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;
</span>node of a Multi-point service at the same time<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;
</span>[I-D.voyer-pim-sr-p2mp-policy].<span style=3D"mso-spacerun:yes">&nbs=
p; </span>In this case, the Replication<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;
</span>segment's Replication State includes a branch with the Downstream<o:=
p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S"><span style=3D"mso-spacerun:yes">&nbsp;&nbsp;
</span>Node being itself and the operation for the replicated copy is NEXT.=
&quot;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S">same comment: Could the section 2 &quot;Replication Segment&quot; of thi=
s document be focused on the definition and specification of this local rep=
lication segment?<span style=3D"mso-tab-count:1">
</span><span style=3D"mso-spacerun:yes">&nbsp; </span><o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S">----<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S">&quot;Replication segments apply equally to both SR-MPLS and SRv6 instan=
tiations of Segment Routing.&quot;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S">May be, but there are differences between both data planes and the draft=
 does not talk about those differences.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S">e.g. for SR-MPLS, labels are local to a node (including labels of global=
 segments). Hence it's not crystal clear to me if/how a segment/label can f=
ollow a replication segment. Because that
 label would be received by N nodes, which may understand it differently (d=
ifferent FEC). How is this handled? In essence, the situation is similar to=
 the use of
<span class=3D"SpellE">anycast</span> SID. So this seems possible to handle=
 it, but may be not trivial up to the point of not mentioning it. (some opt=
ions are using upstream allocated labels with context forwarding tables, en=
forcing that all receivers use the
 same FEC for the label. <span class=3D"SpellE">cf</span> the spring <span =
class=3D"SpellE">
anycast</span> draft)<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S">e.g. for SRv6, the use of binding SID implies the use of new (another) I=
Pv6 encapsulation [1]. So if N consecutive replication segments are used al=
ong the path, N IPv6 encapsulation are
 performed. I'm not seen a provision for performing the N de-encapsulations=
. How is this handled, on which node(s)?
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-ansi-language:EN-U=
S">[1] https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programmi=
ng-16#section-5<o:p></o:p></span></p>
</div>
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From nobody Wed Jul  8 09:07:11 2020
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From: "Joel M. Halpern" <jmh@joelhalpern.com>
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I am told that I was unclear in some aspects of my comments.

Speaking as an individual:
1) I hope and expect we can get to adopting this.  I have no objection 
to the idea
2) As I see it, before we can adopt this draft we need enough 
description of the operational requirements / restrictions (e.g. where 
can replication segments appear, how are replication trees described, 
where can conventional SIDs appear in a stack with replications segments?)
2') Note that the descriptions do not have to be perfect.  I do 
understand that we are at WG adoption, not WG last call.
3) Just for completeness, I understand that the control aspects are out 
of scope, and are being dealt with in other working groups (presumably 
with  appropriate cross-communication)

Yours,
Joel


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Bruno,
Replies inline

> ---
>
> "A SR Replication segment allows a packet to be replicated from a replica=
tion node to downstream nodes."
>
> May be adding "Each downstream node is reached by using a unicast segment=
 or SR policy."
>
> (otherwise, the building of a multicast tree seem possibly within the sco=
pe)
>
>
If the downstream node is directly connected, we don't need a unicast
segment or SR policy to reach that node, just an interface to that
node is sufficient.

>
> -----
>
> "a Replication segment is a logical segment"
>
> - I'm not sure what you mean by "logical".
>
> - My understanding is that the replication is a local segment as per RFC8=
402. i.e. it is instantiated on one single node. Can you make this clear in=
 the document?
>
>

By "logical" we mean the Replication segment is not a topological
construct (like a node or a link).  I am proposing the following text
to clarify that it is a local segment instantiated at the Replication
and Downstream nodes.

"In a Segment Routing Domain, a Replication segment is a logical
construct which connects a Replication Node to a set of Downstream
Nodes. A Replication segment is a local segment instantiated at the
Replication node and and MAY be instantiated at Downstream nodes. It
can be either provisioned locally on a node or programmed by a PCE. "


>
> "A Downstream Node could be
>
>    represented by the node's Node SID (i.e. it does not matter how
>
>    traffic gets to the Downstream Node, whether it's directly connected
>
>    or not), or in case of a directly connected node it could be
>
>    represented by the Adjacency SID (for the interface connecting to the
>
>    directly connected Leaf Node).  Alternatively, a Downstream Node
>
>    could be represented by a SID-list or a Segment Routing Policy
>
>    [I-D.ietf-spring-segment-routing-policy] that partially/fully
>
>    specifies the explicit path from the Replication Node to the
>
>    Downstream Node, or even represented by another Replication segment."
>
>
>
> This definition uses only "could", "alternatively", "or even".
>
> Would it be possible to phrase it to describe what _it is_ ?
>
> On the list, Andrew proposed the following text "downstreamIngressReplica=
tionSid and SID Path". Which may be could be phrased as: a unicast SR polic=
y, (possibly) followed by a replication segment. And if you extend the SR-P=
olicy to include the use of a Replication segment, may be specification of =
a branch could simply be 'one SR policy'.
>
>

As you suggest, we will try to simplify this in the next revision.
Below is proposed text (that also incorporates the response to first
comment):

"A Downstream Node is represented by a SID-list or a Segment Routing
Policy that specifies the explicit path from the Replication Node to
the Downstream Node, or even represented by another Replication
segment. The SID-list MAY just have one SID. If a downstream node is
adjacent to a Replication node, it MAY also be represented by an
interface."


>
> -----
>
> "  For the root of a Multi-point service, the Replication SID
>
>    SHOULD be considered to be the equivalent of Binding SID
>
>    [I-D.ietf-spring-segment-routing-policy] of a Segment Routing Policy.
>
>    At a downstream node of the Multi-point service, the Replication SID
>
>    MAY be used to identify that portion of the Multi-point service."
>
>
>
> From this text, it's not clear whether the replication SID/segment is a l=
ocal segment, or a global segment, or something new to be defined.
>
> Why not replacing the above text with
>
> " the Replication SID
>
>    SHOULD be considered to be the equivalent of Binding SID
>
>    [I-D.ietf-spring-segment-routing-policy] of a Segment Routing Policy."
>
>
We are proposing this text:

"At a Replication node, the Replication SID SHOULD be considered to be
the equivalent of Binding SID of a Segment Routing Policy.". The text
about "Downstream Node" has been to another paragraph in same section
where we describe NEXT operation.


>
> -------
>
> " o  When the Active Segment [RFC8402] is the Replication SID.  In this
>
>       case, the operation for a replicated copy is CONTINUE."
>
>
>
> "CONTINUE" would mean that the segment is not a local segment.
>
> So the document really needs to clarify whether the replication SID/segme=
nt is a local segment, or a global segment, or something new to be defined.=
.
>
>
The CONTINUE operation just captures the label swap for each
replication, with just the Downstream Replication SID in the simplest
case.

>
> -----
>
> "  o  On the root of a Multi-point service, based on local policy-based
>
>       routing.  In this case, the operation for a replicated copy is
>
>       PUSH."
>
>
>
> Introduction states that the building of a tree (hence the root) is out o=
f scope of this document.
>
>
>
> Could the section 2 "Replication Segment" of this document be focused on =
the definition and specification of this local replication segment?
>
>
>
> -----
>
> "  If a Downstream Node is an egress (aka leaf) of the Multi-point
>
>    service, i.e. no further replication is needed, then that leaf node's
>
>    Replication segment will not have any Replication State and the
>
>    operation is NEXT.  Notice that the segment on the leaf node is still
>
>    referred to as a Replication segment for the purpose of
>
>    generalization.
>
>
>
>    A node can be a bud node, i.e. it is a replication node and a leaf
>
>    node of a Multi-point service at the same time
>
>    [I-D.voyer-pim-sr-p2mp-policy].  In this case, the Replication
>
>    segment's Replication State includes a branch with the Downstream
>
>    Node being itself and the operation for the replicated copy is NEXT."
>
>
>
> same comment: Could the section 2 "Replication Segment" of this document =
be focused on the definition and specification of this local replication se=
gment?
>
>

The description of PUSH, CONTINUE and NEXT operation was introduced in
version 02 as a result of discussions with Sasha and other WG members
in this thread:
https://mailarchive.ietf.org/arch/browse/spring/?q=3DThe%20SPRING%20WG%20ha=
s%20placed%20draft-voyer-spring-sr-replication-segment%20in%20state%20.
IMO, the processing of a packet as it traverses a Replication Segment
is specified by these operations and should be part of the draft.



>
> ----
>
> "Replication segments apply equally to both SR-MPLS and SRv6 instantiatio=
ns of Segment Routing."
>
>
>
> May be, but there are differences between both data planes and the draft =
does not talk about those differences.
>
> e.g. for SR-MPLS, labels are local to a node (including labels of global =
segments). Hence it's not crystal clear to me if/how a segment/label can fo=
llow a replication segment. Because that label would be received by N nodes=
, which may understand it differently (different FEC). How is this handled?=
 In essence, the situation is similar to the use of anycast SID. So this se=
ems possible to handle it, but may be not trivial up to the point of not me=
ntioning it. (some options are using upstream allocated labels with context=
 forwarding tables, enforcing that all receivers use the same FEC for the l=
abel. cf the spring anycast draft)
>
>
>
>
>
> e.g. for SRv6, the use of binding SID implies the use of new (another) IP=
v6 encapsulation [1]. So if N consecutive replication segments are used alo=
ng the path, N IPv6 encapsulation are performed. I'm not seen a provision f=
or performing the N de-encapsulations.. How is this handled, on which node(=
s)?
>
>
>
> [1] https://tools.ietf.org/html/draft-ietf-spring-srv6-network-programmin=
g-16#section-5
>

We do have an approach for SRv6 Replication. After adoption, we were
going to poll the WG to see if SRv6 content can be incorporated in
this draft or in a separate document. However, we do want to retain
minimal text about SRv6 in the draft since this Replication construct
applies to SRv6 also.


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A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Source Packet Routing in Networking WG of the IETF.

        Title           : YANG Data Model for Segment Routing
        Authors         : Stephane Litkowski
                          Yingzhen Qu
                          Acee Lindem
                          Pushpasis Sarkar
                          Jeff Tantsura
	Filename        : draft-ietf-spring-sr-yang-16.txt
	Pages           : 32
	Date            : 2020-07-09

Abstract:
   This document defines a YANG data model ([RFC6020], [RFC7950]) for
   segment routing ([RFC8402]) configuration and operation.  This YANG
   model is intended to be used on network elements to configure or
   operate segment routing MPLS data plane [RFC8660].  This document
   defines also generic containers that SHOULD be reused by IGP protocol
   modules to support segment routing.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-spring-sr-yang/

There are also htmlized versions available at:
https://tools.ietf.org/html/draft-ietf-spring-sr-yang-16
https://datatracker.ietf.org/doc/html/draft-ietf-spring-sr-yang-16

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-spring-sr-yang-16


Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.

Internet-Drafts are also available by anonymous FTP at:
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A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Source Packet Routing in Networking WG of the IETF.

        Title           : YANG Data Model for Segment Routing
        Authors         : Stephane Litkowski
                          Yingzhen Qu
                          Acee Lindem
                          Pushpasis Sarkar
                          Jeff Tantsura
	Filename        : draft-ietf-spring-sr-yang-17.txt
	Pages           : 33
	Date            : 2020-07-09

Abstract:
   This document defines a YANG data model for segment routing
   configuration and operation, which is to be augmented by different
   segment routing data planes.  The document also defines a YANG model
   that is intended to be used on network elements to configure or
   operate segment routing MPLS data plane, as well as some generic
   containers to be reused by IGP protocol modules to support segment
   routing.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-spring-sr-yang/

There are also htmlized versions available at:
https://tools.ietf.org/html/draft-ietf-spring-sr-yang-17
https://datatracker.ietf.org/doc/html/draft-ietf-spring-sr-yang-17

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-spring-sr-yang-17


Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.

Internet-Drafts are also available by anonymous FTP at:
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From: Yingzhen Qu <yingzhen.qu@futurewei.com>
To: "Reshad Rahman (rrahman)" <rrahman=40cisco.com@dmarc.ietf.org>, James Guichard <james.n.guichard@futurewei.com>, "spring@ietf.org" <spring@ietf.org>
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--_000_BA48725400AF4ADCBC445157D054E9E9futureweicom_--


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From: Dhruv Dhody <dhruv.ietf@gmail.com>
Date: Fri, 10 Jul 2020 13:25:02 +0530
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To: Yingzhen Qu <yingzhen.qu@futurewei.com>
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Subject: Re: [spring] WG LC https://datatracker.ietf.org/doc/draft-ietf-spring-sr-yang/
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Hi Yingzhen,

Thanks for your reply, snipping to the open items -

>
> You're correct that SRv6 YANG should be augmenting segment-routing like sr-mpls. This was the agreement between SRv6 and SR-MPLS YANG authors.  Hopefully SRv6 YANG authors will update so in the next revision.
>

I would also encourage you to consider adding some high-level text
describing the relationship between the 3 modules defined in this I-D
and your guidance for SRv6-Yang. A figure could also be quite useful.


>        - Can we rename ipv4-sid and ipv6-sid to ipv4-prefix-sid and
>     ipv6-prefix-sid respectively?
> [YQ]: not sure whether there are other modules using these groupings. Will check to make sure not breaking other YANG modules importing it.
>

I looked in the IGP SR Yang I-Ds as well as searched in the
https://www.yangcatalog.org/ and found nothing.
More importantly, it is normal for other YANG modules to be updated in
such a case.

>        - It could be useful to add a description of why ERLD is read-only
>     in the YANG.
> [YQ]: ERLD?
>

Entropy capable Readable Label Depth - the node-capabilities, and
entropy-readable-label-depth below marked as "ro"

   module: ietf-segment-routing-mpls
     augment /rt:routing/sr:segment-routing:
       +--rw sr-mpls
          +--ro node-capabilities
          |  +--ro entropy-readable-label-depth?   uint8
          +--rw msd {max-sid-depth}?


>        - Can the ISIS YANG typedef be used instead of redefining the
>     system-id in SR yang.
> [YQ]: ISIS-SR YANG will be importing both SR-MPLS and ISIS YANG, so the typedef from ISIS YANG can't be reused since it will cause circular reference.
>

That is not true! Notice the arrows in  - https://sketchboard.me/NCeua6qrZBzV
Also, I made the change in my local copy, and all 3 yang models compile cleanly!

>        - In the grouping sr-controlplane, is it not better to have a
>     reference to the policy rather than a string?
>
>           +--rw segment-routing
>           |  +--rw enabled?    boolean
>           |  +--rw bindings
>           |     +--rw advertise
>           |     |  +--rw policies*   string
>           |     +--rw receive?     Boolean
>
> [YQ]: Do you mean the policy in mapping server? Which is a string.
>

Yes, I assume this policy is the same as -
/rt:routing/sr:segment-routing:/sr-mpls/bindings/mapping-server/policy/name
and thus wondering why not a leafref? If this policy is different
please add more text explaining it.


>        - Target is defined as a string in the yang. You do say that they
>     are IPv4/IPv6 prefix in the context of the I-D. I want to confirm that
>     the string is the right choice in such a case.
>  [YQ]: this is intended.
>

Please consider adding some descriptive text around this.

Thanks!
Dhruv


From nobody Fri Jul 10 12:43:29 2020
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Subject: [spring] I-D Action: draft-voyer-spring-sr-replication-segment-04.txt
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A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Source Packet Routing in Networking WG of the IETF.

        Title           : SR Replication Segment for Multi-point Service Delivery
        Authors         : Daniel Voyer
                          Clarence Filsfils
                          Rishabh Parekh
                          Hooman Bidgoli
                          Zhaohui Zhang
	Filename        : draft-voyer-spring-sr-replication-segment-04.txt
	Pages           : 10
	Date            : 2020-07-10

Abstract:
   This document describes the SR Replication segment for Multi-point
   service delivery.  A SR Replication segment allows a packet to be
   replicated from a replication node to downstream nodes.



The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-voyer-spring-sr-replication-segment/

There are also htmlized versions available at:
https://tools.ietf.org/html/draft-voyer-spring-sr-replication-segment-04
https://datatracker.ietf.org/doc/html/draft-voyer-spring-sr-replication-segment-04

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-voyer-spring-sr-replication-segment-04


Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.

Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/



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Subject: Re: [spring] I-D Action: draft-voyer-spring-sr-replication-segment-04.txt
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My thanks to the authors.  The revisions captured here address my 
concerns regarding the call for adoption.

Yours,
Joel

On 7/10/2020 3:43 PM, internet-drafts@ietf.org wrote:
> 
> A New Internet-Draft is available from the on-line Internet-Drafts directories.
> This draft is a work item of the Source Packet Routing in Networking WG of the IETF.
> 
>          Title           : SR Replication Segment for Multi-point Service Delivery
>          Authors         : Daniel Voyer
>                            Clarence Filsfils
>                            Rishabh Parekh
>                            Hooman Bidgoli
>                            Zhaohui Zhang
> 	Filename        : draft-voyer-spring-sr-replication-segment-04.txt
> 	Pages           : 10
> 	Date            : 2020-07-10
> 
> Abstract:
>     This document describes the SR Replication segment for Multi-point
>     service delivery.  A SR Replication segment allows a packet to be
>     replicated from a replication node to downstream nodes.
> 
> 
> 
> The IETF datatracker status page for this draft is:
> https://datatracker.ietf.org/doc/draft-voyer-spring-sr-replication-segment/
> 
> There are also htmlized versions available at:
> https://tools.ietf.org/html/draft-voyer-spring-sr-replication-segment-04
> https://datatracker.ietf.org/doc/html/draft-voyer-spring-sr-replication-segment-04
> 
> A diff from the previous version is available at:
> https://www.ietf.org/rfcdiff?url2=draft-voyer-spring-sr-replication-segment-04
> 
> 
> Please note that it may take a couple of minutes from the time of submission
> until the htmlized version and diff are available at tools.ietf.org.
> 
> Internet-Drafts are also available by anonymous FTP at:
> ftp://ftp.ietf.org/internet-drafts/
> 
> 
> _______________________________________________
> I-D-Announce mailing list
> I-D-Announce@ietf.org
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> Internet-Draft directories: http://www.ietf.org/shadow.html
> or ftp://ftp.ietf.org/ietf/1shadow-sites.txt
> 


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From: Rishabh Parekh <rishabhp@gmail.com>
Date: Fri, 10 Jul 2020 13:45:41 -0700
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To: Jeff Tantsura <jefftant.ietf@gmail.com>
Cc: Dhruv Dhody <dhruv.ietf@gmail.com>,  "bruno.decraene@orange.com" <bruno.decraene@orange.com>,  Alexander Vainshtein <Alexander.Vainshtein@rbbn.com>, "spring@ietf.org" <spring@ietf.org>
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Subject: Re: [spring] Understanding the replication draft
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All,
We have posted revision 04
<https://tools.ietf.org/html/draft-voyer-spring-sr-replication-segment-04>
of the draft. This addresses comments on this thread and adds an example
illustrating replication segment. Diff from rev 03:
https://tinyurl.com/y96ueb9h

Some WG  members also wanted to understand how Replication segments are
stitched together to form a P2MP tree based on SR P2MP policy in the PIM
draft. We have posted revision 02
<https://tools.ietf.org/html/draft-voyer-pim-sr-p2mp-policy-02> of PIM P2MP
policy draft that adds examples of how these things tie together. I hope
that helps clarify the relationship. Diff from rev 01:
https://tinyurl.com/yban2jp6

Please review,
-Rishabh


On Tue, Jul 7, 2020 at 2:16 PM Jeff Tantsura <jefftant.ietf@gmail.com>
wrote:

> Thanks Rishabh!
> +1 to the above comments and looking forward to the updated draft.
>
> Cheers,
> Jeff
> On Jul 7, 2020, 7:35 AM -0700, Alexander Vainshtein <
> Alexander.Vainshtein@rbbn.com>, wrote:
>
> Dhruv, Bruno and all,
> Regarding the statement " What is missing in the spring I-D is some very
> high level discussion in terms of architecture on how replication segment
> and SR P2MP policy come together" - I cannot agree more.
>
> My 2c,
> Sasha
>
> Office: +972-39266302
> Cell: +972-549266302
> Email: Alexander.Vainshtein@ecitele.com
>
>
> -----Original Message-----
> From: spring <spring-bounces@ietf.org> On Behalf Of Dhruv Dhody
> Sent: Tuesday, July 7, 2020 1:02 PM
> To: bruno.decraene@orange.com
> Cc: spring@ietf.org
> Subject: Re: [spring] Understanding the replication draft
>
> Hi Bruno,
>
> Yes, thanks! I was just making sure that we have an agreement that PIM is
> the right place to define SR P2MP Policy.
>
> What is missing in the spring I-D is some very high level discussion in
> terms of architecture on how replication segment and SR P2MP policy come
> together. The current I-D tries to define a replication segment as an
> independent entity that could be used on its own but it makes it difficul=
t
> to visualize without some high level text or an example.
>
> Thanks!
> Dhruv
>
> On Tue, Jul 7, 2020 at 3:12 PM <bruno.decraene@orange.com> wrote:
> >
> > Hi Dhruv,
> >
> > > -----Original Message-----
> > > From: spring [mailto:spring-bounces@ietf.org] On Behalf Of Dhruv
> > > Dhody
> > > Subject: Re: [spring] Understanding the replication draft
> > >
> > > Hi WG,
> > >
> > > Reading the I-D and based on the discussion on this thread I believe
> > > more description is required. As Joel pointed out, clarity on what
> > > is legal/illegal (or out of scope for now) is needed.
> >
> > I leave this for the authors to reply.
> >
> > > I have no strong opinion if that needs to be done before or after
> adoption!
> > >
> > > I do not follow PIM closely and just realized that the SR P2MP
> > > Policy in the PIM I-D [1] is adopted by the PIM WG, but not yet poste=
d
> [2].
> > > I wanted to make sure that it has been decided that PIM is the right
> > > place to define SR P2MP policy (discussed either in the WG and/or
> > > between chairs/AD)?
> >
> > draft-voyer-pim-sr-p2mp-policy-00 is to be worked in the PIM WG.
> > The PIM WG is waiting for the SPRING WG to adopt
> draft-voyer-spring-sr-replication-segment, since the -pim- document has a
> dependency on the -spring- document.
> >
> > Quoting the PIM chairs: "We have solid support to adopt this draft..
> [...] We are waiting to hear back from the spring chairs as to the wg
> status of the local replication draft of which your draft is dependent.. =
So
> please hold off on submitting the new draft-ietf-pim-sr-p2mp-policy until
> they give us the green light."
> >
> > Does this answer your question?
> >
> > --Bruno
> >
> > > Thanks!
> > > Dhruv
> > >
> > > [1]
> > > https://clicktime.symantec.com/36sxrNPFssiaB8jE9mzzZDd6H2?u=3Dhttps%3=
A
> > > %2F%2Fdatatracker.ietf.org%2Fdoc%2Fdraft-voyer-pim-sr-p2mp-policy%2F
> > > [2]
> > > https://clicktime.symantec.com/3LtBxbxRK3NkuKYc3FC7rr46H2?u=3Dhttps%3=
A
> > > %2F%2Fmailarchive.ietf.org%2Farch%2Fmsg%2Fpim%2FYyF7I02aaRtpZngf7uTn
> > > o69IB90%2F
> > >
> > >
> > >
> > > On Thu, Jul 2, 2020 at 12:05 PM Rishabh Parekh <rishabhp@gmail..com>
> > > wrote:
> > > >
> > > > Jeff,
> > > > Your explanation of distinct Transport SIDs and service labels
> > > > (which appear at BoS) applies to Point-to-Point services. Same
> > > > model can be applied when a Point-to-Multipoint service is
> > > > realized by one end-to-end replication segment; "Downstream
> > > > Replication SID" as specified in draft is effectively the service
> > > > label at a specific downstream node of a Replication segment with
> > > > Transport SIDs imposed on top to take replicated packet to that nod=
e.
> > > >
> > > > However, when a Point-to-Multipoint service is over replication
> > > > segments stitched together to form a P2MP tree, as described in
> > > > PIM WG draft, this model no longer holds since all service egress
> > > > nodes would have to agree on one common service label. So P2MP
> > > > services implicitly map the P2MP transport label (Replication SID
> > > > at BoS in this case) to the P2MP service. Of course, this implies
> > > > one-to-one association between a P2MP service and a P2MP
> > > > transport. There are techniques to share one P2MP transport across
> > > > different P2MP services using either upstream assigned label or a
> > > > global context from "Domain-wide Common Block"
> > > > (draft-ietf-bess-mvpn-evpn-aggregation-label). These and other
> > > > gory details are described in Section 2 of PIM WG draft and to
> > > > some extent in BESS MVPN-EVPN draft.
> > > >
> > > > -Rishabh
> > > >
> > > > On Wed, Jul 1, 2020 at 5:50 PM Jeff Tantsura
> > > > <jefftant.ietf@gmail.com>
> > > wrote:
> > > > >
> > > > > Rishabh,
> > > > >
> > > > > Transport SID with a service on top can=E2=80=99t be a BoS label,
> > > > > there=E2=80=99s s service
> > > label below, since a service is associated with a particular node,
> > > there would be at least a N-SID associated with the service node.
> > > > > It seems like B-SID behavior is the correct one, when R-SID is
> > > > > looked up
> > > and popped, it would yield: replication (as programmed by a
> > > controller, since there=E2=80=99s no state) + new label stack associa=
ted
> > > with the new, post replication/branching path that is imposed on top
> > > of existing label stack, so service label ( + optionally more
> transport labels) are preserved.
> > > > >
> > > > > Cheers,
> > > > > Jeff
> > > > > On Jul 1, 2020, 12:40 PM -0700, Rishabh Parekh
> > > > > <rishabhp@gmail.com>,
> > > wrote:
> > > > >
> > > > > Robert,
> > > > >
> > > > > A) Firmly state that replication SID MUST be the last one on the
> > > > > stack
> > > > > B) Instead of real SID after the replication SID provide a
> > > > > binding SID which
> > > locally will be mapped to a different SID list imposed to each
> replicated flow.
> > > > >
> > > > >
> > > > > We would be fine with A), but we don't want to exclude
> > > > > possibility of something like what you describe in B.
> > > > >
> > > > > -Rishabh
> > > > >
> > > > > On Wed, Jul 1, 2020 at 12:27 PM Robert Raszuk
> > > > > <robert@raszuk.net>
> > > wrote:
> > > > >
> > > > >
> > > > > Hi Rishabh,
> > > > >
> > > > > Of course, care must be
> > > > > taken to avoid the "explosion" as you describe it.. G-SID-2 has
> > > > > to map to a unique node; for example, it may be an Anycast-SID
> > > > > that takes packet to distinct nodes from each of the downstream
> > > > > node, or the downstream nodes can be border nodes connecting to
> > > > > other segment routing domains where G-SID-2 resolves to distinct
> > > > > nodes in each domain.
> > > > >
> > > > >
> > > > > I think you are stretching it too thin.
> > > > >
> > > > > See even if G-SID-2 is anycast SID you have zero assurance that
> > > > > physical
> > > nodes packets will land on would be at all diverse.
> > > > >
> > > > > Likewise crossing domains yet providing identical global SID now
> > > > > to be a
> > > different node in each such domain to me is not a realistic example.
> > > > >
> > > > > I think we have two options:
> > > > >
> > > > > A) Firmly state that replication SID MUST be the last one on the
> > > > > stack
> > > > >
> > > > > B) Instead of real SID after the replication SID provide a
> > > > > binding SID which
> > > locally will be mapped to a different SID list imposed to each
> replicated flow.
> > > > >
> > > > > What is currently in the draft seems to be very counterintuitive
> > > > > and IMHO
> > > will result in operational difficulties.
> > > > >
> > > > > Thx a lot,
> > > > > R.
> > > > >
> > > > >
> > > > > _______________________________________________
> > > > > spring mailing list
> > > > > spring@ietf.org
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<div dir=3D"ltr"><div>All,<br></div><div>We have posted <a href=3D"https://=
tools.ietf.org/html/draft-voyer-spring-sr-replication-segment-04">revision =
04</a> of the draft. This addresses comments on this thread and adds an exa=
mple illustrating replication segment. Diff from rev 03:=C2=A0 <a href=3D"h=
ttps://tinyurl.com/y96ueb9h">https://tinyurl.com/y96ueb9h</a></div><div><br=
></div><div>Some WG=C2=A0 members also wanted to understand how Replication=
 segments are stitched together to form a P2MP tree based on SR P2MP policy=
 in the PIM draft. We have posted <a href=3D"https://tools.ietf.org/html/dr=
aft-voyer-pim-sr-p2mp-policy-02">revision 02</a> of PIM P2MP policy draft t=
hat adds examples of how these things tie together. I hope that helps clari=
fy the relationship. Diff from rev 01: <a href=3D"https://tinyurl.com/yban2=
jp6">https://tinyurl.com/yban2jp6</a> <br></div><div><br></div><div>Please =
review,</div><div>-Rishabh<br></div></div><br><br><div class=3D"gmail_quote=
"><div dir=3D"ltr" class=3D"gmail_attr">On Tue, Jul 7, 2020 at 2:16 PM Jeff=
 Tantsura &lt;<a href=3D"mailto:jefftant.ietf@gmail.com">jefftant.ietf@gmai=
l.com</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"ma=
rgin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:=
1ex">



<div>
<div name=3D"messageBodySection">
<div dir=3D"auto">Thanks Rishabh!<br>
+1 to the above comments and looking forward to the updated draft.</div>
</div>
<div name=3D"messageSignatureSection"><br>
<div>Cheers,
<div>Jeff</div>
</div>
</div>
<div name=3D"messageReplySection">On Jul 7, 2020, 7:35 AM -0700, Alexander =
Vainshtein &lt;<a href=3D"mailto:Alexander.Vainshtein@rbbn.com" target=3D"_=
blank">Alexander.Vainshtein@rbbn.com</a>&gt;, wrote:<br>
<blockquote type=3D"cite" style=3D"border-left:thin solid grey;margin:5px;p=
adding-left:10px">Dhruv, Bruno and all,<br>
Regarding the statement &quot; What is missing in the spring I-D is some ve=
ry high level discussion in terms of architecture on how replication segmen=
t and SR P2MP policy come together&quot; - I cannot agree more.<br>
<br>
My 2c,<br>
Sasha<br>
<br>
Office: +972-39266302<br>
Cell: +972-549266302<br>
Email: <a href=3D"mailto:Alexander.Vainshtein@ecitele.com" target=3D"_blank=
">Alexander.Vainshtein@ecitele.com</a><br>
<br>
<br>
-----Original Message-----<br>
From: spring &lt;<a href=3D"mailto:spring-bounces@ietf.org" target=3D"_blan=
k">spring-bounces@ietf.org</a>&gt; On Behalf Of Dhruv Dhody<br>
Sent: Tuesday, July 7, 2020 1:02 PM<br>
To: <a href=3D"mailto:bruno.decraene@orange.com" target=3D"_blank">bruno.de=
craene@orange.com</a><br>
Cc: <a href=3D"mailto:spring@ietf.org" target=3D"_blank">spring@ietf.org</a=
><br>
Subject: Re: [spring] Understanding the replication draft<br>
<br>
Hi Bruno,<br>
<br>
Yes, thanks! I was just making sure that we have an agreement that PIM is t=
he right place to define SR P2MP Policy.<br>
<br>
What is missing in the spring I-D is some very high level discussion in ter=
ms of architecture on how replication segment and SR P2MP policy come toget=
her. The current I-D tries to define a replication segment as an independen=
t entity that could be used on its own but it makes it difficult to visuali=
ze without some high level text or an example.<br>
<br>
Thanks!<br>
Dhruv<br>
<br>
On Tue, Jul 7, 2020 at 3:12 PM &lt;<a href=3D"mailto:bruno.decraene@orange.=
com" target=3D"_blank">bruno.decraene@orange.com</a>&gt; wrote:<br>
&gt;<br>
&gt; Hi Dhruv,<br>
&gt;<br>
&gt; &gt; -----Original Message-----<br>
&gt; &gt; From: spring [mailto:<a href=3D"mailto:spring-bounces@ietf.org" t=
arget=3D"_blank">spring-bounces@ietf.org</a>] On Behalf Of Dhruv<br>
&gt; &gt; Dhody<br>
&gt; &gt; Subject: Re: [spring] Understanding the replication draft<br>
&gt; &gt;<br>
&gt; &gt; Hi WG,<br>
&gt; &gt;<br>
&gt; &gt; Reading the I-D and based on the discussion on this thread I beli=
eve<br>
&gt; &gt; more description is required. As Joel pointed out, clarity on wha=
t<br>
&gt; &gt; is legal/illegal (or out of scope for now) is needed.<br>
&gt;<br>
&gt; I leave this for the authors to reply.<br>
&gt;<br>
&gt; &gt; I have no strong opinion if that needs to be done before or after=
 adoption!<br>
&gt; &gt;<br>
&gt; &gt; I do not follow PIM closely and just realized that the SR P2MP<br=
>
&gt; &gt; Policy in the PIM I-D [1] is adopted by the PIM WG, but not yet p=
osted [2].<br>
&gt; &gt; I wanted to make sure that it has been decided that PIM is the ri=
ght<br>
&gt; &gt; place to define SR P2MP policy (discussed either in the WG and/or=
<br>
&gt; &gt; between chairs/AD)?<br>
&gt;<br>
&gt; draft-voyer-pim-sr-p2mp-policy-00 is to be worked in the PIM WG.<br>
&gt; The PIM WG is waiting for the SPRING WG to adopt draft-voyer-spring-sr=
-replication-segment, since the -pim- document has a dependency on the -spr=
ing- document.<br>
&gt;<br>
&gt; Quoting the PIM chairs: &quot;We have solid support to adopt this draf=
t.. [...] We are waiting to hear back from the spring chairs as to the wg s=
tatus of the local replication draft of which your draft is dependent.. So =
please hold off on submitting the new draft-ietf-pim-sr-p2mp-policy until t=
hey give us the green light.&quot;<br>
&gt;<br>
&gt; Does this answer your question?<br>
&gt;<br>
&gt; --Bruno<br>
&gt;<br>
&gt; &gt; Thanks!<br>
&gt; &gt; Dhruv<br>
&gt; &gt;<br>
&gt; &gt; [1]<br>
&gt; &gt; <a href=3D"https://clicktime.symantec.com/36sxrNPFssiaB8jE9mzzZDd=
6H2?u=3Dhttps%3A" target=3D"_blank">https://clicktime.symantec.com/36sxrNPF=
ssiaB8jE9mzzZDd6H2?u=3Dhttps%3A</a><br>
&gt; &gt; %2F%<a href=3D"http://2Fdatatracker.ietf.org" target=3D"_blank">2=
Fdatatracker.ietf.org</a>%2Fdoc%2Fdraft-voyer-pim-sr-p2mp-policy%2F<br>
&gt; &gt; [2]<br>
&gt; &gt; <a href=3D"https://clicktime.symantec.com/3LtBxbxRK3NkuKYc3FC7rr4=
6H2?u=3Dhttps%3A" target=3D"_blank">https://clicktime.symantec.com/3LtBxbxR=
K3NkuKYc3FC7rr46H2?u=3Dhttps%3A</a><br>
&gt; &gt; %2F%<a href=3D"http://2Fmailarchive.ietf.org" target=3D"_blank">2=
Fmailarchive.ietf.org</a>%2Farch%2Fmsg%2Fpim%2FYyF7I02aaRtpZngf7uTn<br>
&gt; &gt; o69IB90%2F<br>
&gt; &gt;<br>
&gt; &gt;<br>
&gt; &gt;<br>
&gt; &gt; On Thu, Jul 2, 2020 at 12:05 PM Rishabh Parekh &lt;rishabhp@gmail=
..com&gt;<br>
&gt; &gt; wrote:<br>
&gt; &gt; &gt;<br>
&gt; &gt; &gt; Jeff,<br>
&gt; &gt; &gt; Your explanation of distinct Transport SIDs and service labe=
ls<br>
&gt; &gt; &gt; (which appear at BoS) applies to Point-to-Point services. Sa=
me<br>
&gt; &gt; &gt; model can be applied when a Point-to-Multipoint service is<b=
r>
&gt; &gt; &gt; realized by one end-to-end replication segment; &quot;Downst=
ream<br>
&gt; &gt; &gt; Replication SID&quot; as specified in draft is effectively t=
he service<br>
&gt; &gt; &gt; label at a specific downstream node of a Replication segment=
 with<br>
&gt; &gt; &gt; Transport SIDs imposed on top to take replicated packet to t=
hat node.<br>
&gt; &gt; &gt;<br>
&gt; &gt; &gt; However, when a Point-to-Multipoint service is over replicat=
ion<br>
&gt; &gt; &gt; segments stitched together to form a P2MP tree, as described=
 in<br>
&gt; &gt; &gt; PIM WG draft, this model no longer holds since all service e=
gress<br>
&gt; &gt; &gt; nodes would have to agree on one common service label. So P2=
MP<br>
&gt; &gt; &gt; services implicitly map the P2MP transport label (Replicatio=
n SID<br>
&gt; &gt; &gt; at BoS in this case) to the P2MP service. Of course, this im=
plies<br>
&gt; &gt; &gt; one-to-one association between a P2MP service and a P2MP<br>
&gt; &gt; &gt; transport. There are techniques to share one P2MP transport =
across<br>
&gt; &gt; &gt; different P2MP services using either upstream assigned label=
 or a<br>
&gt; &gt; &gt; global context from &quot;Domain-wide Common Block&quot;<br>
&gt; &gt; &gt; (draft-ietf-bess-mvpn-evpn-aggregation-label). These and oth=
er<br>
&gt; &gt; &gt; gory details are described in Section 2 of PIM WG draft and =
to<br>
&gt; &gt; &gt; some extent in BESS MVPN-EVPN draft.<br>
&gt; &gt; &gt;<br>
&gt; &gt; &gt; -Rishabh<br>
&gt; &gt; &gt;<br>
&gt; &gt; &gt; On Wed, Jul 1, 2020 at 5:50 PM Jeff Tantsura<br>
&gt; &gt; &gt; &lt;<a href=3D"mailto:jefftant.ietf@gmail.com" target=3D"_bl=
ank">jefftant.ietf@gmail.com</a>&gt;<br>
&gt; &gt; wrote:<br>
&gt; &gt; &gt; &gt;<br>
&gt; &gt; &gt; &gt; Rishabh,<br>
&gt; &gt; &gt; &gt;<br>
&gt; &gt; &gt; &gt; Transport SID with a service on top can=E2=80=99t be a =
BoS label,<br>
&gt; &gt; &gt; &gt; there=E2=80=99s s service<br>
&gt; &gt; label below, since a service is associated with a particular node=
,<br>
&gt; &gt; there would be at least a N-SID associated with the service node.=
<br>
&gt; &gt; &gt; &gt; It seems like B-SID behavior is the correct one, when R=
-SID is<br>
&gt; &gt; &gt; &gt; looked up<br>
&gt; &gt; and popped, it would yield: replication (as programmed by a<br>
&gt; &gt; controller, since there=E2=80=99s no state) + new label stack ass=
ociated<br>
&gt; &gt; with the new, post replication/branching path that is imposed on =
top<br>
&gt; &gt; of existing label stack, so service label ( + optionally more tra=
nsport labels) are preserved.<br>
&gt; &gt; &gt; &gt;<br>
&gt; &gt; &gt; &gt; Cheers,<br>
&gt; &gt; &gt; &gt; Jeff<br>
&gt; &gt; &gt; &gt; On Jul 1, 2020, 12:40 PM -0700, Rishabh Parekh<br>
&gt; &gt; &gt; &gt; &lt;<a href=3D"mailto:rishabhp@gmail.com" target=3D"_bl=
ank">rishabhp@gmail.com</a>&gt;,<br>
&gt; &gt; wrote:<br>
&gt; &gt; &gt; &gt;<br>
&gt; &gt; &gt; &gt; Robert,<br>
&gt; &gt; &gt; &gt;<br>
&gt; &gt; &gt; &gt; A) Firmly state that replication SID MUST be the last o=
ne on the<br>
&gt; &gt; &gt; &gt; stack<br>
&gt; &gt; &gt; &gt; B) Instead of real SID after the replication SID provid=
e a<br>
&gt; &gt; &gt; &gt; binding SID which<br>
&gt; &gt; locally will be mapped to a different SID list imposed to each re=
plicated flow.<br>
&gt; &gt; &gt; &gt;<br>
&gt; &gt; &gt; &gt;<br>
&gt; &gt; &gt; &gt; We would be fine with A), but we don&#39;t want to excl=
ude<br>
&gt; &gt; &gt; &gt; possibility of something like what you describe in B.<b=
r>
&gt; &gt; &gt; &gt;<br>
&gt; &gt; &gt; &gt; -Rishabh<br>
&gt; &gt; &gt; &gt;<br>
&gt; &gt; &gt; &gt; On Wed, Jul 1, 2020 at 12:27 PM Robert Raszuk<br>
&gt; &gt; &gt; &gt; &lt;<a href=3D"mailto:robert@raszuk.net" target=3D"_bla=
nk">robert@raszuk.net</a>&gt;<br>
&gt; &gt; wrote:<br>
&gt; &gt; &gt; &gt;<br>
&gt; &gt; &gt; &gt;<br>
&gt; &gt; &gt; &gt; Hi Rishabh,<br>
&gt; &gt; &gt; &gt;<br>
&gt; &gt; &gt; &gt; Of course, care must be<br>
&gt; &gt; &gt; &gt; taken to avoid the &quot;explosion&quot; as you describ=
e it.. G-SID-2 has<br>
&gt; &gt; &gt; &gt; to map to a unique node; for example, it may be an Anyc=
ast-SID<br>
&gt; &gt; &gt; &gt; that takes packet to distinct nodes from each of the do=
wnstream<br>
&gt; &gt; &gt; &gt; node, or the downstream nodes can be border nodes conne=
cting to<br>
&gt; &gt; &gt; &gt; other segment routing domains where G-SID-2 resolves to=
 distinct<br>
&gt; &gt; &gt; &gt; nodes in each domain.<br>
&gt; &gt; &gt; &gt;<br>
&gt; &gt; &gt; &gt;<br>
&gt; &gt; &gt; &gt; I think you are stretching it too thin.<br>
&gt; &gt; &gt; &gt;<br>
&gt; &gt; &gt; &gt; See even if G-SID-2 is anycast SID you have zero assura=
nce that<br>
&gt; &gt; &gt; &gt; physical<br>
&gt; &gt; nodes packets will land on would be at all diverse.<br>
&gt; &gt; &gt; &gt;<br>
&gt; &gt; &gt; &gt; Likewise crossing domains yet providing identical globa=
l SID now<br>
&gt; &gt; &gt; &gt; to be a<br>
&gt; &gt; different node in each such domain to me is not a realistic examp=
le.<br>
&gt; &gt; &gt; &gt;<br>
&gt; &gt; &gt; &gt; I think we have two options:<br>
&gt; &gt; &gt; &gt;<br>
&gt; &gt; &gt; &gt; A) Firmly state that replication SID MUST be the last o=
ne on the<br>
&gt; &gt; &gt; &gt; stack<br>
&gt; &gt; &gt; &gt;<br>
&gt; &gt; &gt; &gt; B) Instead of real SID after the replication SID provid=
e a<br>
&gt; &gt; &gt; &gt; binding SID which<br>
&gt; &gt; locally will be mapped to a different SID list imposed to each re=
plicated flow.<br>
&gt; &gt; &gt; &gt;<br>
&gt; &gt; &gt; &gt; What is currently in the draft seems to be very counter=
intuitive<br>
&gt; &gt; &gt; &gt; and IMHO<br>
&gt; &gt; will result in operational difficulties.<br>
&gt; &gt; &gt; &gt;<br>
&gt; &gt; &gt; &gt; Thx a lot,<br>
&gt; &gt; &gt; &gt; R.<br>
&gt; &gt; &gt; &gt;<br>
&gt; &gt; &gt; &gt;<br>
&gt; &gt; &gt; &gt; _______________________________________________<br>
&gt; &gt; &gt; &gt; spring mailing list<br>
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From: James Guichard <james.n.guichard@futurewei.com>
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Subject: [spring] WG Adoption Call for draft-raza-spring-sr-policy-yang
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Dear WG:

This email begins a 2 week WG adoption call for https://datatracker.ietf.or=
g/doc/draft-raza-spring-sr-policy-yang/ ending Monday 27th July 2020.

Please speak up if you support or oppose adopting this document into the WG=
. Please also provide comments/reasons for that support (or lack thereof). =
Silence will not be considered consent.

Thanks!

Jim, Joel & Bruno




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<p class=3D"MsoNormal">Dear WG:<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">This email begins a 2 week WG adoption call for <a h=
ref=3D"https://datatracker.ietf.org/doc/draft-raza-spring-sr-policy-yang/">
https://datatracker.ietf.org/doc/draft-raza-spring-sr-policy-yang/</a> endi=
ng Monday 27<sup>th</sup> July 2020.
<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Please speak up if you support or oppose adopting th=
is document into the WG. Please also provide comments/reasons for that supp=
ort (or lack thereof). Silence will not be considered consent.<o:p></o:p></=
p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Thanks!<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Jim, Joel &amp; Bruno<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
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From: "Stone, Andrew (Nokia - CA/Ottawa)" <andrew.stone@nokia.com>
To: "spring@ietf.org" <spring@ietf.org>
Thread-Topic: [spring] WG Adoption Call for draft-raza-spring-sr-policy-yang
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Subject: [spring] WG Adoption Call for draft-raza-spring-srv6-yang
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Dear WG:

This email begins a 2 week WG adoption call for https://datatracker.ietf.or=
g/doc/draft-raza-spring-srv6-yang/ ending Monday 27th July 2020.

Please speak up if you support or oppose adopting this document into the WG=
. Please also provide comments/reasons for that support (or lack thereof). =
Silence will not be considered consent.

Thanks!

Jim, Joel & Bruno





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<p class=3D"MsoNormal"><span lang=3D"EN-CA">Dear WG:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">This email begins a 2 week WG a=
doption call for
<a href=3D"https://datatracker.ietf.org/doc/draft-raza-spring-srv6-yang/">h=
ttps://datatracker.ietf.org/doc/draft-raza-spring-srv6-yang/</a> ending Mon=
day 27<sup>th</sup> July 2020.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Please speak up if you support =
or oppose adopting this document into the WG. Please also provide comments/=
reasons for that support (or lack thereof). Silence will not be considered =
consent.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Thanks!<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Jim, Joel &amp; Bruno<o:p></o:p=
></span></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
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<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
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Thread-Topic: [spring] WG Adoption Call for draft-raza-spring-sr-policy-yang
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Subject: Re: [spring] WG Adoption Call for draft-raza-spring-sr-policy-yang
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Content-Type: text/plain; charset="us-ascii"
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Hi All,

I support the WG adoption of this important Yang model for SR Policy. It is=
 one of the WG milestones and therefore something that the WG has already r=
esolved to work upon. The proposal in the draft itself is well advanced and=
 provides a very good version for the WG to accomplish this work item.

Thanks,
Ketan

From: spring <spring-bounces@ietf.org> On Behalf Of James Guichard
Sent: 13 July 2020 21:08
To: spring@ietf.org
Cc: spring-chairs@ietf.org
Subject: [spring] WG Adoption Call for draft-raza-spring-sr-policy-yang

Dear WG:

This email begins a 2 week WG adoption call for https://datatracker.ietf.or=
g/doc/draft-raza-spring-sr-policy-yang/ ending Monday 27th July 2020.

Please speak up if you support or oppose adopting this document into the WG=
. Please also provide comments/reasons for that support (or lack thereof). =
Silence will not be considered consent.

Thanks!

Jim, Joel & Bruno




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<p class=3D"MsoNormal"><span style=3D"mso-fareast-language:EN-US">Hi All,<o=
:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-language:EN-US"><o:p>&nbs=
p;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-language:EN-US">I support=
 the WG adoption of this important Yang model for SR Policy. It is one of t=
he WG milestones and therefore something that the WG has already resolved t=
o work upon. The proposal in the draft
 itself is well advanced and provides a very good version for the WG to acc=
omplish this work item.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-language:EN-US"><o:p>&nbs=
p;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-language:EN-US">Thanks,<o=
:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-language:EN-US">Ketan<o:p=
></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-language:EN-US"><o:p>&nbs=
p;</o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US">From:</span></b><span lang=
=3D"EN-US"> spring &lt;spring-bounces@ietf.org&gt;
<b>On Behalf Of </b>James Guichard<br>
<b>Sent:</b> 13 July 2020 21:08<br>
<b>To:</b> spring@ietf.org<br>
<b>Cc:</b> spring-chairs@ietf.org<br>
<b>Subject:</b> [spring] WG Adoption Call for draft-raza-spring-sr-policy-y=
ang<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Dear WG:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">This email begins a 2 week WG a=
doption call for
<a href=3D"https://datatracker.ietf.org/doc/draft-raza-spring-sr-policy-yan=
g/">https://datatracker.ietf.org/doc/draft-raza-spring-sr-policy-yang/</a> =
ending Monday 27<sup>th</sup> July 2020.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Please speak up if you support =
or oppose adopting this document into the WG. Please also provide comments/=
reasons for that support (or lack thereof). Silence will not be considered =
consent.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Thanks!<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Jim, Joel &amp; Bruno<o:p></o:p=
></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
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Thread-Topic: WG Adoption Call for draft-raza-spring-srv6-yang
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Subject: Re: [spring] WG Adoption Call for draft-raza-spring-srv6-yang
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Content-Type: text/plain; charset="us-ascii"
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Hi All,

I support the adoption of this document by the WG. The Yang model for SRv6 =
is something that the WG needs to work on as a deliverable alongside all th=
e ongoing SRv6 work. The proposal in the draft aligns with the draft-ietf-s=
pring-srv6-network-programming and thus provides a good base for the WG.

Thanks,
Ketan

From: spring <spring-bounces@ietf.org> On Behalf Of James Guichard
Sent: 14 July 2020 03:22
To: spring@ietf.org
Cc: spring-chairs@ietf.org
Subject: [spring] WG Adoption Call for draft-raza-spring-srv6-yang

Dear WG:

This email begins a 2 week WG adoption call for https://datatracker.ietf.or=
g/doc/draft-raza-spring-srv6-yang/ ending Monday 27th July 2020.

Please speak up if you support or oppose adopting this document into the WG=
. Please also provide comments/reasons for that support (or lack thereof). =
Silence will not be considered consent.

Thanks!

Jim, Joel & Bruno






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<p class=3D"MsoNormal"><span style=3D"mso-fareast-language:EN-US">Hi All,<o=
:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-language:EN-US"><o:p>&nbs=
p;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-language:EN-US">I support=
 the adoption of this document by the WG. The Yang model for SRv6 is someth=
ing that the WG needs to work on as a deliverable alongside all the ongoing=
 SRv6 work. The proposal in the draft
 aligns with the draft-ietf-spring-srv6-network-programming and thus provid=
es a good base for the WG.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-language:EN-US"><o:p>&nbs=
p;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-language:EN-US">Thanks,<o=
:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-language:EN-US">Ketan<o:p=
></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-language:EN-US"><o:p>&nbs=
p;</o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US">From:</span></b><span lang=
=3D"EN-US"> spring &lt;spring-bounces@ietf.org&gt;
<b>On Behalf Of </b>James Guichard<br>
<b>Sent:</b> 14 July 2020 03:22<br>
<b>To:</b> spring@ietf.org<br>
<b>Cc:</b> spring-chairs@ietf.org<br>
<b>Subject:</b> [spring] WG Adoption Call for draft-raza-spring-srv6-yang<o=
:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Dear WG:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">This email begins a 2 week WG a=
doption call for
<a href=3D"https://datatracker.ietf.org/doc/draft-raza-spring-srv6-yang/">h=
ttps://datatracker.ietf.org/doc/draft-raza-spring-srv6-yang/</a> ending Mon=
day 27<sup>th</sup> July 2020.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Please speak up if you support =
or oppose adopting this document into the WG. Please also provide comments/=
reasons for that support (or lack thereof). Silence will not be considered =
consent.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Thanks!<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Jim, Joel &amp; Bruno<o:p></o:p=
></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
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nt-family:&quot;Times New Roman&quot;,serif"><o:p>&nbsp;</o:p></span></i></=
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From: "Majumdar, Kausik" <Kausik.Majumdar@commscope.com>
To: James Guichard <james.n.guichard@futurewei.com>, "spring@ietf.org" <spring@ietf.org>
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Thread-Topic: [spring] WG Adoption Call for draft-raza-spring-sr-policy-yang
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/QfgSnwy_AnXn9nJ3Q7UG_jQz5Ng>
Subject: Re: [spring] WG Adoption Call for draft-raza-spring-sr-policy-yang
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This is an important draft to define the SR Policy Yang definition. Support=
 the WG adoption.

Thanks,
Kausik

From: spring <spring-bounces@ietf.org> On Behalf Of James Guichard
Sent: Monday, July 13, 2020 8:38 AM
To: spring@ietf.org
Cc: spring-chairs@ietf.org
Subject: [spring] WG Adoption Call for draft-raza-spring-sr-policy-yang

Dear WG: This email begins a 2 week WG adoption call for https://datatracke=
r.ietf.org/doc/draft-raza-spring-sr-policy-yang/ ending Monday 27th July 20=
20. Please speak up if you support or oppose adopt
External (james.n.guichard@futurewei.com<mailto:james.n.guichard@futurewei.=
com>)
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Dear WG:

This email begins a 2 week WG adoption call for https://datatracker.ietf.or=
g/doc/draft-raza-spring-sr-policy-yang/<https://secure-web.cisco.com/1L4dUc=
ZOQ2KsJyB6zXTfObfeBBtXJncOjR_HPhRa_Y2HROZ7B6pfxZqUBZ44HTqKDVrZDfjG1JFU3uHFC=
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doc%2Fdraft-raza-spring-sr-policy-yang%2F> ending Monday 27th July 2020.

Please speak up if you support or oppose adopting this document into the WG=
. Please also provide comments/reasons for that support (or lack thereof). =
Silence will not be considered consent.

Thanks!

Jim, Joel & Bruno




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<p=20class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p=20class=3D"MsoNormal">This=20is=20an=20important=20draft=20to=20define=
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<p=20class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p=20class=3D"MsoNormal">Thanks,<o:p></o:p></p>
<p=20class=3D"MsoNormal">Kausik<o:p></o:p></p>
<p=20class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
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<p=20class=3D"MsoNormal"><b>From:</b>=20spring=20&lt;spring-bounces@ietf.or=
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<b>Sent:</b>=20Monday,=20July=2013,=202020=208:38=20AM<br/>
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<b>Subject:</b>=20[spring]=20WG=20Adoption=20Call=20for=20draft-raza-spring=
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<p=20class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
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<p=20class=3D"MsoNormal">Dear=20WG:=20<o:p></o:p></p>
<p=20class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p=20class=3D"MsoNormal">This=20email=20begins=20a=202=20week=20WG=20adopti=
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https://datatracker.ietf.org/doc/draft-raza-spring-sr-policy-yang/</a>=20en=
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<o:p></o:p></p>
<p=20class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p=20class=3D"MsoNormal">Please=20speak=20up=20if=20you=20support=20or=20op=
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lence=20will=20not=20be=20considered=20consent.
<o:p></o:p></p>
<p=20class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p=20class=3D"MsoNormal">Thanks!=20<o:p></o:p></p>
<p=20class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p=20class=3D"MsoNormal">Jim,=20Joel=20&amp;=20Bruno=20<o:p></o:p></p>
<p=20class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
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From: "Xiejingrong (Jingrong)" <xiejingrong@huawei.com>
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Subject: Re: [spring] WG Adoption Call for draft-raza-spring-srv6-yang
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I support the adoption of this draft. It aligns with the SR Policy Architec=
ture and is a crucial component for config driven SR Policy.

Thanks,
Mike.

From: spring <spring-bounces@ietf.org> On Behalf Of James Guichard
Sent: Monday, July 13, 2020 5:52 PM
To: spring@ietf.org
Cc: spring-chairs@ietf.org
Subject: [spring] WG Adoption Call for draft-raza-spring-srv6-yang

Dear WG:

This email begins a 2 week WG adoption call for https://datatracker.ietf.or=
g/doc/draft-raza-spring-srv6-yang/ ending Monday 27th July 2020.

Please speak up if you support or oppose adopting this document into the WG=
. Please also provide comments/reasons for that support (or lack thereof). =
Silence will not be considered consent.

Thanks!

Jim, Joel & Bruno






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<p class=3D"MsoNormal">I support the adoption of this draft. It aligns with=
 the SR Policy Architecture and is a crucial component for config driven SR=
 Policy.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Thanks,<o:p></o:p></p>
<p class=3D"MsoNormal">Mike.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal"><b>From:</b> spring &lt;spring-bounces@ietf.org&gt; =
<b>On Behalf Of
</b>James Guichard<br>
<b>Sent:</b> Monday, July 13, 2020 5:52 PM<br>
<b>To:</b> spring@ietf.org<br>
<b>Cc:</b> spring-chairs@ietf.org<br>
<b>Subject:</b> [spring] WG Adoption Call for draft-raza-spring-srv6-yang<o=
:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Dear WG:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">This email begins a 2 week WG a=
doption call for
<a href=3D"https://datatracker.ietf.org/doc/draft-raza-spring-srv6-yang/">h=
ttps://datatracker.ietf.org/doc/draft-raza-spring-srv6-yang/</a> ending Mon=
day 27<sup>th</sup> July 2020.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Please speak up if you support =
or oppose adopting this document into the WG. Please also provide comments/=
reasons for that support (or lack thereof). Silence will not be considered =
consent.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Thanks!<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Jim, Joel &amp; Bruno<o:p></o:p=
></span></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><i><span style=3D"font-size:12.0pt;font-family:&quot=
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<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
</body>
</html>

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Thread-Topic: [spring] WG Adoption Call for draft-raza-spring-sr-policy-yang
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Subject: Re: [spring] WG Adoption Call for draft-raza-spring-sr-policy-yang
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--_000_DM6PR11MB380265A762B17BC19279A64AD3610DM6PR11MB3802namp_
Content-Type: text/plain; charset="us-ascii"
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I support the adoption of this draft. It aligns with the SR Policy Architec=
ture and is a crucial component for config driven SR Policy.

Thanks,
Mike.

From: spring <spring-bounces@ietf.org> On Behalf Of James Guichard
Sent: Monday, July 13, 2020 11:38 AM
To: spring@ietf.org
Cc: spring-chairs@ietf.org
Subject: [spring] WG Adoption Call for draft-raza-spring-sr-policy-yang

Dear WG:

This email begins a 2 week WG adoption call for https://datatracker.ietf.or=
g/doc/draft-raza-spring-sr-policy-yang/ ending Monday 27th July 2020.

Please speak up if you support or oppose adopting this document into the WG=
. Please also provide comments/reasons for that support (or lack thereof). =
Silence will not be considered consent.

Thanks!

Jim, Joel & Bruno




--_000_DM6PR11MB380265A762B17BC19279A64AD3610DM6PR11MB3802namp_
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<p class=3D"MsoNormal">I support the adoption of this draft. It aligns with=
 the SR Policy Architecture and is a crucial component for config driven SR=
 Policy.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Thanks,<o:p></o:p></p>
<p class=3D"MsoNormal">Mike.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal"><b>From:</b> spring &lt;spring-bounces@ietf.org&gt; =
<b>On Behalf Of
</b>James Guichard<br>
<b>Sent:</b> Monday, July 13, 2020 11:38 AM<br>
<b>To:</b> spring@ietf.org<br>
<b>Cc:</b> spring-chairs@ietf.org<br>
<b>Subject:</b> [spring] WG Adoption Call for draft-raza-spring-sr-policy-y=
ang<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Dear WG:<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">This email begins a 2 week WG adoption call for <a h=
ref=3D"https://datatracker.ietf.org/doc/draft-raza-spring-sr-policy-yang/">
https://datatracker.ietf.org/doc/draft-raza-spring-sr-policy-yang/</a> endi=
ng Monday 27<sup>th</sup> July 2020.
<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Please speak up if you support or oppose adopting th=
is document into the WG. Please also provide comments/reasons for that supp=
ort (or lack thereof). Silence will not be considered consent.<o:p></o:p></=
p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Thanks!<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Jim, Joel &amp; Bruno<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
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From: "Majumdar, Kausik" <Kausik.Majumdar@commscope.com>
To: James Guichard <james.n.guichard@futurewei.com>, "spring@ietf.org" <spring@ietf.org>
CC: "spring-chairs@ietf.org" <spring-chairs@ietf.org>
Thread-Topic: WG Adoption Call for draft-raza-spring-srv6-yang
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/mvnPN2PuKzPA0nJQ_qcUHhge3BY>
Subject: Re: [spring] WG Adoption Call for draft-raza-spring-srv6-yang
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Support the WG adoption on the SRv6 Yang draft. This is an important draft =
for the SRv6 service Yang draft to move forward.

Regards,
Kausik

From: spring <spring-bounces@ietf.org> On Behalf Of James Guichard
Sent: Monday, July 13, 2020 2:52 PM
To: spring@ietf.org
Cc: spring-chairs@ietf.org
Subject: [spring] WG Adoption Call for draft-raza-spring-srv6-yang

Dear WG: This email begins a 2 week WG adoption call for https://datatracke=
r.ietf.org/doc/draft-raza-spring-srv6-yang/ ending Monday 27th July 2020. P=
lease speak up if you support or oppose adopting t
External (james.n.guichard@futurewei.com<mailto:james.n.guichard@futurewei.=
com>)
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Dear WG:

This email begins a 2 week WG adoption call for https://datatracker.ietf.or=
g/doc/draft-raza-spring-srv6-yang/<https://secure-web.cisco.com/1iBGFeR2YYp=
QUyKBw-J3iAY4clPzIxH_4bkP-lGk3iiY6DS3UlYReZ6wasaPw4sfgUksgrezABqBApTJSFvOJ1=
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Fdraft-raza-spring-srv6-yang%2F> ending Monday 27th July 2020.

Please speak up if you support or oppose adopting this document into the WG=
. Please also provide comments/reasons for that support (or lack thereof). =
Silence will not be considered consent.

Thanks!

Jim, Joel & Bruno






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<p=20class=3D"MsoNormal">Support=20the=20WG=20adoption=20on=20the=20SRv6=20=
Yang=20draft.=20This=20is=20an=20important=20draft=20for=20the=20SRv6=20ser=
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<p=20class=3D"MsoNormal">Regards,<o:p></o:p></p>
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<p=20class=3D"MsoNormal"><b>From:</b>=20spring=20&lt;spring-bounces@ietf.or=
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<b>Cc:</b>=20spring-chairs@ietf.org<br/>
<b>Subject:</b>=20[spring]=20WG=20Adoption=20Call=20for=20draft-raza-spring=
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<p=20class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
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<p=20class=3D"MsoNormal"><span=20lang=3D"EN-CA">Dear=20WG:=20<o:p></o:p></s=
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<p=20class=3D"MsoNormal"><span=20lang=3D"EN-CA">&nbsp;=20<o:p></o:p></span>=
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<p=20class=3D"MsoNormal"><span=20lang=3D"EN-CA">This=20email=20begins=20a=
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<a=20href=3D"https://secure-web.cisco.com/1iBGFeR2YYpQUyKBw-J3iAY4clPzIxH_4=
bkP-lGk3iiY6DS3UlYReZ6wasaPw4sfgUksgrezABqBApTJSFvOJ15pIOQeZY0cgSE6DUBKLXlZ=
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<o:p></o:p></span></p>
<p=20class=3D"MsoNormal"><span=20lang=3D"EN-CA">&nbsp;=20<o:p></o:p></span>=
</p>
<p=20class=3D"MsoNormal"><span=20lang=3D"EN-CA">Please=20speak=20up=20if=20=
you=20support=20or=20oppose=20adopting=20this=20document=20into=20the=20WG.=
=20Please=20also=20provide=20comments/reasons=20for=20that=20support=20(or=
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From: Rishabh Parekh <rishabhp@gmail.com>
Date: Tue, 14 Jul 2020 13:25:01 -0700
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To: "Xiejingrong (Jingrong)" <xiejingrong@huawei.com>
Cc: Jeff Tantsura <jefftant.ietf@gmail.com>, Dhruv Dhody <dhruv.ietf@gmail.com>, "bruno.decraene@orange.com" <bruno.decraene@orange.com>, "spring@ietf.org" <spring@ietf.org>,  Alexander Vainshtein <Alexander.Vainshtein@rbbn.com>
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Subject: Re: [spring] Understanding the replication draft
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Jingrong,
As I had explained to Jeff Tantsura earlier in the thread, with P2MP
services realized by P2MP trees, VPN label is NOT part of the label stack
since egress (leaf nodes of P2MP trees) of the P2MP service MAY have
different VPN labels for same context. For P2MP services, it is normal to
use the top transport label (Replication SID in this case) as implicit
context for the service. Of course, this implies one-to-one association
between P2MP transport and service.

There are techniques, using upstream label allocation or DCB (domain wide
context blocks), where the same VPN label can be assigned to the service on
all the egress nodes. In this case, the P2MP transports can be shared
across P2MP services (at a set of egress nodes) and the VPN label can
appear after the Replication SID as we have indicated in the PIM WG draft.
But, the VPN label is not a SID and, IMO, the statement "Replication SID
must be last SID...." still holds but it is not at the bottom of the stack.
We can clarify this when we publish the WG document.

-Rishabh

On Tue, Jul 14, 2020 at 4:55 AM Xiejingrong (Jingrong) <
xiejingrong@huawei.com> wrote:

> Hi
>
>
>
> The rev-04 says =E2=80=9CThe Replication SID MUST be the last SID (at the=
 bottom
> of stack for SR-MPLS) in a packet that is steered out from a Replication
> node of a Replication Segment.=E2=80=9D.
>
>
>
> I feel a little hard to understand =E2=80=A6=E2=80=A6
>
>
>
> My question is: Can an =E2=80=9CMPLS packet=E2=80=9D be carried over the =
P2MP policy ? say
> a packet like this: { Replication SID, (VPN Label, IPv4/IPv6 C-multicast
> packet) } ?
>
>
>
> In my understanding, with an imagined topology comprising of Replication
> Node R1/R2/R3/R4, the picture is like this:
>
>
>
> The Replication Node R2 receives such a packet (from R1), sees the
> Replication SID<R2> on the =E2=80=9CTop=E2=80=9D of the label stack,  per=
forms the
> corresponding action of =E2=80=9Creplication=E2=80=9D,  replicates the pa=
cket to downstream
> Replication Nodes R3 and R4, SWAPs the Replication SID<R2> to Replication
> SID<R3> and Replication SID<R4> respectively.
>
>
>
> The Replication Node R3 receives the packet { Replication SID<R3>, (VPN
> Label, IPv4/IPv6 C-multicast packet) }.
>
>
>
> The Replication Node R4 receives the packet { Replication SID<R4>, (VPN
> Label, IPv4/IPv6 C-multicast packet) }.
>
>
>
> Thanks
>
> Jingrong
>
>
>
> *From:* spring [mailto:spring-bounces@ietf.org] *On Behalf Of *Rishabh
> Parekh
> *Sent:* Saturday, July 11, 2020 4:46 AM
> *To:* Jeff Tantsura <jefftant.ietf@gmail.com>
> *Cc:* Dhruv Dhody <dhruv.ietf@gmail.com>; bruno.decraene@orange.com;
> spring@ietf.org; Alexander Vainshtein <Alexander.Vainshtein@rbbn.com>
> *Subject:* Re: [spring] Understanding the replication draft
>
>
>
> All,
>
> We have posted revision 04
> <https://tools.ietf.org/html/draft-voyer-spring-sr-replication-segment-04=
>
> of the draft. This addresses comments on this thread and adds an example
> illustrating replication segment. Diff from rev 03:
> https://tinyurl.com/y96ueb9h
>
>
>
> Some WG  members also wanted to understand how Replication segments are
> stitched together to form a P2MP tree based on SR P2MP policy in the PIM
> draft. We have posted revision 02
> <https://tools.ietf.org/html/draft-voyer-pim-sr-p2mp-policy-02> of PIM
> P2MP policy draft that adds examples of how these things tie together. I
> hope that helps clarify the relationship. Diff from rev 01:
> https://tinyurl.com/yban2jp6
>
>
>
> Please review,
>
> -Rishabh
>
>
>
> On Tue, Jul 7, 2020 at 2:16 PM Jeff Tantsura <jefftant.ietf@gmail.com>
> wrote:
>
> Thanks Rishabh!
> +1 to the above comments and looking forward to the updated draft.
>
>
>
> Cheers,
>
> Jeff
>
> On Jul 7, 2020, 7:35 AM -0700, Alexander Vainshtein <
> Alexander.Vainshtein@rbbn.com>, wrote:
>
> Dhruv, Bruno and all,
> Regarding the statement " What is missing in the spring I-D is some very
> high level discussion in terms of architecture on how replication segment
> and SR P2MP policy come together" - I cannot agree more.
>
> My 2c,
> Sasha
>
> Office: +972-39266302
> Cell: +972-549266302
> Email: Alexander.Vainshtein@ecitele.com
>
>
> -----Original Message-----
> From: spring <spring-bounces@ietf.org> On Behalf Of Dhruv Dhody
> Sent: Tuesday, July 7, 2020 1:02 PM
> To: bruno.decraene@orange.com
> Cc: spring@ietf.org
> Subject: Re: [spring] Understanding the replication draft
>
> Hi Bruno,
>
> Yes, thanks! I was just making sure that we have an agreement that PIM is
> the right place to define SR P2MP Policy.
>
> What is missing in the spring I-D is some very high level discussion in
> terms of architecture on how replication segment and SR P2MP policy come
> together. The current I-D tries to define a replication segment as an
> independent entity that could be used on its own but it makes it difficul=
t
> to visualize without some high level text or an example.
>
> Thanks!
> Dhruv
>
> On Tue, Jul 7, 2020 at 3:12 PM <bruno.decraene@orange.com> wrote:
> >
> > Hi Dhruv,
> >
> > > -----Original Message-----
> > > From: spring [mailto:spring-bounces@ietf.org] On Behalf Of Dhruv
> > > Dhody
> > > Subject: Re: [spring] Understanding the replication draft
> > >
> > > Hi WG,
> > >
> > > Reading the I-D and based on the discussion on this thread I believe
> > > more description is required. As Joel pointed out, clarity on what
> > > is legal/illegal (or out of scope for now) is needed.
> >
> > I leave this for the authors to reply.
> >
> > > I have no strong opinion if that needs to be done before or after
> adoption!
> > >
> > > I do not follow PIM closely and just realized that the SR P2MP
> > > Policy in the PIM I-D [1] is adopted by the PIM WG, but not yet poste=
d
> [2].
> > > I wanted to make sure that it has been decided that PIM is the right
> > > place to define SR P2MP policy (discussed either in the WG and/or
> > > between chairs/AD)?
> >
> > draft-voyer-pim-sr-p2mp-policy-00 is to be worked in the PIM WG.
> > The PIM WG is waiting for the SPRING WG to adopt
> draft-voyer-spring-sr-replication-segment, since the -pim- document has a
> dependency on the -spring- document.
> >
> > Quoting the PIM chairs: "We have solid support to adopt this draft..
> [...] We are waiting to hear back from the spring chairs as to the wg
> status of the local replication draft of which your draft is dependent.. =
So
> please hold off on submitting the new draft-ietf-pim-sr-p2mp-policy until
> they give us the green light."
> >
> > Does this answer your question?
> >
> > --Bruno
> >
> > > Thanks!
> > > Dhruv
> > >
> > > [1]
> > > https://clicktime.symantec.com/36sxrNPFssiaB8jE9mzzZDd6H2?u=3Dhttps%3=
A
> > > %2F%2Fdatatracker.ietf.org%2Fdoc%2Fdraft-voyer-pim-sr-p2mp-policy%2F
> > > [2]
> > > https://clicktime.symantec.com/3LtBxbxRK3NkuKYc3FC7rr46H2?u=3Dhttps%3=
A
> > > %2F%2Fmailarchive.ietf.org%2Farch%2Fmsg%2Fpim%2FYyF7I02aaRtpZngf7uTn
> > > o69IB90%2F
> > >
> > >
> > >
> > > On Thu, Jul 2, 2020 at 12:05 PM Rishabh Parekh <rishabhp@gmail...com>
> > > wrote:
> > > >
> > > > Jeff,
> > > > Your explanation of distinct Transport SIDs and service labels
> > > > (which appear at BoS) applies to Point-to-Point services. Same
> > > > model can be applied when a Point-to-Multipoint service is
> > > > realized by one end-to-end replication segment; "Downstream
> > > > Replication SID" as specified in draft is effectively the service
> > > > label at a specific downstream node of a Replication segment with
> > > > Transport SIDs imposed on top to take replicated packet to that nod=
e.
> > > >
> > > > However, when a Point-to-Multipoint service is over replication
> > > > segments stitched together to form a P2MP tree, as described in
> > > > PIM WG draft, this model no longer holds since all service egress
> > > > nodes would have to agree on one common service label. So P2MP
> > > > services implicitly map the P2MP transport label (Replication SID
> > > > at BoS in this case) to the P2MP service. Of course, this implies
> > > > one-to-one association between a P2MP service and a P2MP
> > > > transport. There are techniques to share one P2MP transport across
> > > > different P2MP services using either upstream assigned label or a
> > > > global context from "Domain-wide Common Block"
> > > > (draft-ietf-bess-mvpn-evpn-aggregation-label). These and other
> > > > gory details are described in Section 2 of PIM WG draft and to
> > > > some extent in BESS MVPN-EVPN draft.
> > > >
> > > > -Rishabh
> > > >
> > > > On Wed, Jul 1, 2020 at 5:50 PM Jeff Tantsura
> > > > <jefftant.ietf@gmail.com>
> > > wrote:
> > > > >
> > > > > Rishabh,
> > > > >
> > > > > Transport SID with a service on top can=E2=80=99t be a BoS label,
> > > > > there=E2=80=99s s service
> > > label below, since a service is associated with a particular node,
> > > there would be at least a N-SID associated with the service node.
> > > > > It seems like B-SID behavior is the correct one, when R-SID is
> > > > > looked up
> > > and popped, it would yield: replication (as programmed by a
> > > controller, since there=E2=80=99s no state) + new label stack associa=
ted
> > > with the new, post replication/branching path that is imposed on top
> > > of existing label stack, so service label ( + optionally more
> transport labels) are preserved.
> > > > >
> > > > > Cheers,
> > > > > Jeff
> > > > > On Jul 1, 2020, 12:40 PM -0700, Rishabh Parekh
> > > > > <rishabhp@gmail.com>,
> > > wrote:
> > > > >
> > > > > Robert,
> > > > >
> > > > > A) Firmly state that replication SID MUST be the last one on the
> > > > > stack
> > > > > B) Instead of real SID after the replication SID provide a
> > > > > binding SID which
> > > locally will be mapped to a different SID list imposed to each
> replicated flow.
> > > > >
> > > > >
> > > > > We would be fine with A), but we don't want to exclude
> > > > > possibility of something like what you describe in B.
> > > > >
> > > > > -Rishabh
> > > > >
> > > > > On Wed, Jul 1, 2020 at 12:27 PM Robert Raszuk
> > > > > <robert@raszuk.net>
> > > wrote:
> > > > >
> > > > >
> > > > > Hi Rishabh,
> > > > >
> > > > > Of course, care must be
> > > > > taken to avoid the "explosion" as you describe it.. G-SID-2 has
> > > > > to map to a unique node; for example, it may be an Anycast-SID
> > > > > that takes packet to distinct nodes from each of the downstream
> > > > > node, or the downstream nodes can be border nodes connecting to
> > > > > other segment routing domains where G-SID-2 resolves to distinct
> > > > > nodes in each domain.
> > > > >
> > > > >
> > > > > I think you are stretching it too thin.
> > > > >
> > > > > See even if G-SID-2 is anycast SID you have zero assurance that
> > > > > physical
> > > nodes packets will land on would be at all diverse.
> > > > >
> > > > > Likewise crossing domains yet providing identical global SID now
> > > > > to be a
> > > different node in each such domain to me is not a realistic example.
> > > > >
> > > > > I think we have two options:
> > > > >
> > > > > A) Firmly state that replication SID MUST be the last one on the
> > > > > stack
> > > > >
> > > > > B) Instead of real SID after the replication SID provide a
> > > > > binding SID which
> > > locally will be mapped to a different SID list imposed to each
> replicated flow.
> > > > >
> > > > > What is currently in the draft seems to be very counterintuitive
> > > > > and IMHO
> > > will result in operational difficulties.
> > > > >
> > > > > Thx a lot,
> > > > > R.
> > > > >
> > > > >
> > > > > _______________________________________________
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--000000000000c7e40505aa6c9a83
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div>Jingrong,</div><div>As I had explained to Jeff Tantsu=
ra earlier in the thread, with P2MP services realized by P2MP trees, VPN la=
bel is NOT part of the label stack since egress (leaf nodes of P2MP trees) =
of the P2MP service MAY have different VPN labels for same context. For P2M=
P services, it is normal to use the top transport label (Replication SID in=
 this case) as implicit context for the service. Of course, this implies on=
e-to-one association between P2MP transport and service.</div><div><br></di=
v><div>There are techniques, using upstream label allocation or DCB (domain=
 wide context blocks), where the same VPN label can be assigned to the serv=
ice on all the egress nodes. In this case, the P2MP transports can be share=
d across P2MP services (at a set of egress nodes) and the VPN label can app=
ear after the Replication SID as we have indicated in the PIM WG draft. But=
, the VPN label is not a SID and, IMO, the statement &quot;Replication SID =
must be last SID....&quot; still holds but it is not at the bottom of the s=
tack. We can clarify this when we publish the WG document.</div><div><br></=
div><div>-Rishabh<br></div><div><span style=3D"font-size:10.5pt;font-family=
:&quot;Calibri&quot;,sans-serif;color:rgb(31,73,125)" lang=3D"EN-US"></span=
>

</div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_=
attr">On Tue, Jul 14, 2020 at 4:55 AM Xiejingrong (Jingrong) &lt;<a href=3D=
"mailto:xiejingrong@huawei.com" target=3D"_blank">xiejingrong@huawei.com</a=
>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0px=
 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">





<div lang=3D"ZH-CN">
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:rgb(31,73,125)" lang=3D"EN-US">Hi
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:rgb(31,73,125)" lang=3D"EN-US"><u></u>=C2=A0<u=
></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:rgb(31,73,125)" lang=3D"EN-US">The rev-04 says=
 =E2=80=9CThe Replication SID MUST be the last SID (at the bottom of stack =
for SR-MPLS) in a packet that is steered out from a Replication
 node of a Replication Segment.=E2=80=9D.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:rgb(31,73,125)" lang=3D"EN-US"><u></u>=C2=A0<u=
></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:rgb(31,73,125)" lang=3D"EN-US">I feel a little=
 hard to understand =E2=80=A6=E2=80=A6<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:rgb(31,73,125)" lang=3D"EN-US"><u></u>=C2=A0<u=
></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:rgb(31,73,125)" lang=3D"EN-US">My question is:=
 Can an =E2=80=9CMPLS packet=E2=80=9D be carried over the P2MP policy ? say=
 a packet like this: { Replication SID, (VPN Label, IPv4/IPv6 C-multicast
 packet) } ?<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:rgb(31,73,125)" lang=3D"EN-US"><u></u>=C2=A0<u=
></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:rgb(31,73,125)" lang=3D"EN-US">In my understan=
ding, with an imagined topology comprising of Replication Node R1/R2/R3/R4,=
 the picture is like this:<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:rgb(31,73,125)" lang=3D"EN-US"><u></u>=C2=A0<u=
></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:rgb(31,73,125)" lang=3D"EN-US">The Replication=
 Node R2 receives such a packet (from R1), sees the Replication SID&lt;R2&g=
t; on the =E2=80=9CTop=E2=80=9D of the label stack, =C2=A0performs the corr=
esponding
 action of =E2=80=9Creplication=E2=80=9D, =C2=A0replicates the packet to do=
wnstream Replication Nodes R3 and R4, SWAPs the Replication SID&lt;R2&gt; t=
o Replication SID&lt;R3&gt; and Replication SID&lt;R4&gt; respectively.<u><=
/u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:rgb(31,73,125)" lang=3D"EN-US"><u></u>=C2=A0<u=
></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:rgb(31,73,125)" lang=3D"EN-US">The Replication=
 Node R3 receives the packet { Replication SID&lt;R3&gt;, (VPN Label, IPv4/=
IPv6 C-multicast packet) }.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:rgb(31,73,125)" lang=3D"EN-US"><u></u>=C2=A0<u=
></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:rgb(31,73,125)" lang=3D"EN-US">The Replication=
 Node R4 receives the packet { Replication SID&lt;R4&gt;, (VPN Label, IPv4/=
IPv6 C-multicast packet) }.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:rgb(31,73,125)" lang=3D"EN-US"><u></u>=C2=A0<u=
></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:rgb(31,73,125)" lang=3D"EN-US">Thanks<u></u><u=
></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:rgb(31,73,125)" lang=3D"EN-US">Jingrong<u></u>=
<u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:rgb(31,73,125)" lang=3D"EN-US"><u></u>=C2=A0<u=
></u></span></p>
<p class=3D"MsoNormal"><b><span style=3D"font-size:11pt;font-family:&quot;C=
alibri&quot;,sans-serif" lang=3D"EN-US">From:</span></b><span style=3D"font=
-size:11pt;font-family:&quot;Calibri&quot;,sans-serif" lang=3D"EN-US"> spri=
ng [mailto:<a href=3D"mailto:spring-bounces@ietf.org" target=3D"_blank">spr=
ing-bounces@ietf.org</a>]
<b>On Behalf Of </b>Rishabh Parekh<br>
<b>Sent:</b> Saturday, July 11, 2020 4:46 AM<br>
<b>To:</b> Jeff Tantsura &lt;<a href=3D"mailto:jefftant.ietf@gmail.com" tar=
get=3D"_blank">jefftant.ietf@gmail.com</a>&gt;<br>
<b>Cc:</b> Dhruv Dhody &lt;<a href=3D"mailto:dhruv.ietf@gmail.com" target=
=3D"_blank">dhruv.ietf@gmail.com</a>&gt;; <a href=3D"mailto:bruno.decraene@=
orange.com" target=3D"_blank">bruno.decraene@orange.com</a>; <a href=3D"mai=
lto:spring@ietf.org" target=3D"_blank">spring@ietf.org</a>; Alexander Vains=
htein &lt;<a href=3D"mailto:Alexander.Vainshtein@rbbn.com" target=3D"_blank=
">Alexander.Vainshtein@rbbn.com</a>&gt;<br>
<b>Subject:</b> Re: [spring] Understanding the replication draft<u></u><u><=
/u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US">All,<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US">We have posted <a href=3D"https=
://tools.ietf.org/html/draft-voyer-spring-sr-replication-segment-04" target=
=3D"_blank">
revision 04</a> of the draft. This addresses comments on this thread and ad=
ds an example illustrating replication segment. Diff from rev 03:=C2=A0
<a href=3D"https://tinyurl.com/y96ueb9h" target=3D"_blank">https://tinyurl.=
com/y96ueb9h</a><u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Some WG=C2=A0 members also want=
ed to understand how Replication segments are stitched together to form a P=
2MP tree based on SR P2MP policy in the PIM draft. We have posted
<a href=3D"https://tools.ietf.org/html/draft-voyer-pim-sr-p2mp-policy-02" t=
arget=3D"_blank">revision 02</a> of PIM P2MP policy draft that adds example=
s of how these things tie together. I hope that helps clarify the relations=
hip. Diff from rev 01:
<a href=3D"https://tinyurl.com/yban2jp6" target=3D"_blank">https://tinyurl.=
com/yban2jp6</a> <u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Please review,<u></u><u></u></s=
pan></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US">-Rishabh<u></u><u></u></span></=
p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-bottom:12pt"><span lang=3D"EN-US"><u=
></u>=C2=A0<u></u></span></p>
<div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US">On Tue, Jul 7, 2020 at 2:16 PM =
Jeff Tantsura &lt;<a href=3D"mailto:jefftant.ietf@gmail.com" target=3D"_bla=
nk">jefftant.ietf@gmail.com</a>&gt; wrote:<u></u><u></u></span></p>
</div>
<blockquote style=3D"border-color:currentcolor currentcolor currentcolor rg=
b(204,204,204);border-style:none none none solid;border-width:medium medium=
 medium 1pt;padding:0cm 0cm 0cm 6pt;margin-left:4.8pt;margin-right:0cm">
<div>
<div name=3D"messageBodySection">
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Thanks Rishabh!<br>
+1 to the above comments and looking forward to the updated draft.<u></u><u=
></u></span></p>
</div>
</div>
<div name=3D"messageSignatureSection">
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Cheers, <u></u><u></u></span></=
p>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Jeff<u></u><u></u></span></p>
</div>
</div>
</div>
<div name=3D"messageReplySection">
<p class=3D"MsoNormal"><span lang=3D"EN-US">On Jul 7, 2020, 7:35 AM -0700, =
Alexander Vainshtein &lt;<a href=3D"mailto:Alexander.Vainshtein@rbbn.com" t=
arget=3D"_blank">Alexander.Vainshtein@rbbn.com</a>&gt;, wrote:<br>
<br>
<u></u><u></u></span></p>
<blockquote style=3D"margin:3.75pt">
<p class=3D"MsoNormal" style=3D"margin-bottom:12pt"><span lang=3D"EN-US">Dh=
ruv, Bruno and all,<br>
Regarding the statement &quot; What is missing in the spring I-D is some ve=
ry high level discussion in terms of architecture on how replication segmen=
t and SR P2MP policy come together&quot; - I cannot agree more.<br>
<br>
My 2c,<br>
Sasha<br>
<br>
Office: +972-39266302<br>
Cell: +972-549266302<br>
Email: <a href=3D"mailto:Alexander.Vainshtein@ecitele.com" target=3D"_blank=
">Alexander.Vainshtein@ecitele.com</a><br>
<br>
<br>
-----Original Message-----<br>
From: spring &lt;<a href=3D"mailto:spring-bounces@ietf.org" target=3D"_blan=
k">spring-bounces@ietf.org</a>&gt; On Behalf Of Dhruv Dhody<br>
Sent: Tuesday, July 7, 2020 1:02 PM<br>
To: <a href=3D"mailto:bruno.decraene@orange.com" target=3D"_blank">bruno.de=
craene@orange.com</a><br>
Cc: <a href=3D"mailto:spring@ietf.org" target=3D"_blank">spring@ietf.org</a=
><br>
Subject: Re: [spring] Understanding the replication draft<br>
<br>
Hi Bruno,<br>
<br>
Yes, thanks! I was just making sure that we have an agreement that PIM is t=
he right place to define SR P2MP Policy.<br>
<br>
What is missing in the spring I-D is some very high level discussion in ter=
ms of architecture on how replication segment and SR P2MP policy come toget=
her. The current I-D tries to define a replication segment as an independen=
t entity that could be used on its
 own but it makes it difficult to visualize without some high level text or=
 an example.<br>
<br>
Thanks!<br>
Dhruv<br>
<br>
On Tue, Jul 7, 2020 at 3:12 PM &lt;<a href=3D"mailto:bruno.decraene@orange.=
com" target=3D"_blank">bruno.decraene@orange.com</a>&gt; wrote:<br>
&gt;<br>
&gt; Hi Dhruv,<br>
&gt;<br>
&gt; &gt; -----Original Message-----<br>
&gt; &gt; From: spring [mailto:<a href=3D"mailto:spring-bounces@ietf.org" t=
arget=3D"_blank">spring-bounces@ietf.org</a>] On Behalf Of Dhruv<br>
&gt; &gt; Dhody<br>
&gt; &gt; Subject: Re: [spring] Understanding the replication draft<br>
&gt; &gt;<br>
&gt; &gt; Hi WG,<br>
&gt; &gt;<br>
&gt; &gt; Reading the I-D and based on the discussion on this thread I beli=
eve<br>
&gt; &gt; more description is required. As Joel pointed out, clarity on wha=
t<br>
&gt; &gt; is legal/illegal (or out of scope for now) is needed.<br>
&gt;<br>
&gt; I leave this for the authors to reply.<br>
&gt;<br>
&gt; &gt; I have no strong opinion if that needs to be done before or after=
 adoption!<br>
&gt; &gt;<br>
&gt; &gt; I do not follow PIM closely and just realized that the SR P2MP<br=
>
&gt; &gt; Policy in the PIM I-D [1] is adopted by the PIM WG, but not yet p=
osted [2].<br>
&gt; &gt; I wanted to make sure that it has been decided that PIM is the ri=
ght<br>
&gt; &gt; place to define SR P2MP policy (discussed either in the WG and/or=
<br>
&gt; &gt; between chairs/AD)?<br>
&gt;<br>
&gt; draft-voyer-pim-sr-p2mp-policy-00 is to be worked in the PIM WG.<br>
&gt; The PIM WG is waiting for the SPRING WG to adopt draft-voyer-spring-sr=
-replication-segment, since the -pim- document has a dependency on the -spr=
ing- document.<br>
&gt;<br>
&gt; Quoting the PIM chairs: &quot;We have solid support to adopt this draf=
t.. [...] We are waiting to hear back from the spring chairs as to the wg s=
tatus of the local replication draft of which your draft is dependent.. So =
please hold off on submitting the new draft-ietf-pim-sr-p2mp-policy
 until they give us the green light.&quot;<br>
&gt;<br>
&gt; Does this answer your question?<br>
&gt;<br>
&gt; --Bruno<br>
&gt;<br>
&gt; &gt; Thanks!<br>
&gt; &gt; Dhruv<br>
&gt; &gt;<br>
&gt; &gt; [1]<br>
&gt; &gt; <a href=3D"https://clicktime.symantec.com/36sxrNPFssiaB8jE9mzzZDd=
6H2?u=3Dhttps%3A" target=3D"_blank">
https://clicktime.symantec.com/36sxrNPFssiaB8jE9mzzZDd6H2?u=3Dhttps%3A</a><=
br>
&gt; &gt; %2F%<a href=3D"http://2Fdatatracker.ietf.org" target=3D"_blank">2=
Fdatatracker.ietf.org</a>%2Fdoc%2Fdraft-voyer-pim-sr-p2mp-policy%2F<br>
&gt; &gt; [2]<br>
&gt; &gt; <a href=3D"https://clicktime.symantec.com/3LtBxbxRK3NkuKYc3FC7rr4=
6H2?u=3Dhttps%3A" target=3D"_blank">
https://clicktime.symantec.com/3LtBxbxRK3NkuKYc3FC7rr46H2?u=3Dhttps%3A</a><=
br>
&gt; &gt; %2F%<a href=3D"http://2Fmailarchive.ietf.org" target=3D"_blank">2=
Fmailarchive.ietf.org</a>%2Farch%2Fmsg%2Fpim%2FYyF7I02aaRtpZngf7uTn<br>
&gt; &gt; o69IB90%2F<br>
&gt; &gt;<br>
&gt; &gt;<br>
&gt; &gt;<br>
&gt; &gt; On Thu, Jul 2, 2020 at 12:05 PM Rishabh Parekh &lt;<a href=3D"mai=
lto:rishabhp@gmail...com" target=3D"_blank">rishabhp@gmail...com</a>&gt;<br=
>
&gt; &gt; wrote:<br>
&gt; &gt; &gt;<br>
&gt; &gt; &gt; Jeff,<br>
&gt; &gt; &gt; Your explanation of distinct Transport SIDs and service labe=
ls<br>
&gt; &gt; &gt; (which appear at BoS) applies to Point-to-Point services. Sa=
me<br>
&gt; &gt; &gt; model can be applied when a Point-to-Multipoint service is<b=
r>
&gt; &gt; &gt; realized by one end-to-end replication segment; &quot;Downst=
ream<br>
&gt; &gt; &gt; Replication SID&quot; as specified in draft is effectively t=
he service<br>
&gt; &gt; &gt; label at a specific downstream node of a Replication segment=
 with<br>
&gt; &gt; &gt; Transport SIDs imposed on top to take replicated packet to t=
hat node.<br>
&gt; &gt; &gt;<br>
&gt; &gt; &gt; However, when a Point-to-Multipoint service is over replicat=
ion<br>
&gt; &gt; &gt; segments stitched together to form a P2MP tree, as described=
 in<br>
&gt; &gt; &gt; PIM WG draft, this model no longer holds since all service e=
gress<br>
&gt; &gt; &gt; nodes would have to agree on one common service label. So P2=
MP<br>
&gt; &gt; &gt; services implicitly map the P2MP transport label (Replicatio=
n SID<br>
&gt; &gt; &gt; at BoS in this case) to the P2MP service. Of course, this im=
plies<br>
&gt; &gt; &gt; one-to-one association between a P2MP service and a P2MP<br>
&gt; &gt; &gt; transport. There are techniques to share one P2MP transport =
across<br>
&gt; &gt; &gt; different P2MP services using either upstream assigned label=
 or a<br>
&gt; &gt; &gt; global context from &quot;Domain-wide Common Block&quot;<br>
&gt; &gt; &gt; (draft-ietf-bess-mvpn-evpn-aggregation-label). These and oth=
er<br>
&gt; &gt; &gt; gory details are described in Section 2 of PIM WG draft and =
to<br>
&gt; &gt; &gt; some extent in BESS MVPN-EVPN draft.<br>
&gt; &gt; &gt;<br>
&gt; &gt; &gt; -Rishabh<br>
&gt; &gt; &gt;<br>
&gt; &gt; &gt; On Wed, Jul 1, 2020 at 5:50 PM Jeff Tantsura<br>
&gt; &gt; &gt; &lt;<a href=3D"mailto:jefftant.ietf@gmail.com" target=3D"_bl=
ank">jefftant.ietf@gmail.com</a>&gt;<br>
&gt; &gt; wrote:<br>
&gt; &gt; &gt; &gt;<br>
&gt; &gt; &gt; &gt; Rishabh,<br>
&gt; &gt; &gt; &gt;<br>
&gt; &gt; &gt; &gt; Transport SID with a service on top can=E2=80=99t be a =
BoS label,<br>
&gt; &gt; &gt; &gt; there=E2=80=99s s service<br>
&gt; &gt; label below, since a service is associated with a particular node=
,<br>
&gt; &gt; there would be at least a N-SID associated with the service node.=
<br>
&gt; &gt; &gt; &gt; It seems like B-SID behavior is the correct one, when R=
-SID is<br>
&gt; &gt; &gt; &gt; looked up<br>
&gt; &gt; and popped, it would yield: replication (as programmed by a<br>
&gt; &gt; controller, since there=E2=80=99s no state) + new label stack ass=
ociated<br>
&gt; &gt; with the new, post replication/branching path that is imposed on =
top<br>
&gt; &gt; of existing label stack, so service label ( + optionally more tra=
nsport labels) are preserved.<br>
&gt; &gt; &gt; &gt;<br>
&gt; &gt; &gt; &gt; Cheers,<br>
&gt; &gt; &gt; &gt; Jeff<br>
&gt; &gt; &gt; &gt; On Jul 1, 2020, 12:40 PM -0700, Rishabh Parekh<br>
&gt; &gt; &gt; &gt; &lt;<a href=3D"mailto:rishabhp@gmail.com" target=3D"_bl=
ank">rishabhp@gmail.com</a>&gt;,<br>
&gt; &gt; wrote:<br>
&gt; &gt; &gt; &gt;<br>
&gt; &gt; &gt; &gt; Robert,<br>
&gt; &gt; &gt; &gt;<br>
&gt; &gt; &gt; &gt; A) Firmly state that replication SID MUST be the last o=
ne on the<br>
&gt; &gt; &gt; &gt; stack<br>
&gt; &gt; &gt; &gt; B) Instead of real SID after the replication SID provid=
e a<br>
&gt; &gt; &gt; &gt; binding SID which<br>
&gt; &gt; locally will be mapped to a different SID list imposed to each re=
plicated flow.<br>
&gt; &gt; &gt; &gt;<br>
&gt; &gt; &gt; &gt;<br>
&gt; &gt; &gt; &gt; We would be fine with A), but we don&#39;t want to excl=
ude<br>
&gt; &gt; &gt; &gt; possibility of something like what you describe in B.<b=
r>
&gt; &gt; &gt; &gt;<br>
&gt; &gt; &gt; &gt; -Rishabh<br>
&gt; &gt; &gt; &gt;<br>
&gt; &gt; &gt; &gt; On Wed, Jul 1, 2020 at 12:27 PM Robert Raszuk<br>
&gt; &gt; &gt; &gt; &lt;<a href=3D"mailto:robert@raszuk.net" target=3D"_bla=
nk">robert@raszuk.net</a>&gt;<br>
&gt; &gt; wrote:<br>
&gt; &gt; &gt; &gt;<br>
&gt; &gt; &gt; &gt;<br>
&gt; &gt; &gt; &gt; Hi Rishabh,<br>
&gt; &gt; &gt; &gt;<br>
&gt; &gt; &gt; &gt; Of course, care must be<br>
&gt; &gt; &gt; &gt; taken to avoid the &quot;explosion&quot; as you describ=
e it.. G-SID-2 has<br>
&gt; &gt; &gt; &gt; to map to a unique node; for example, it may be an Anyc=
ast-SID<br>
&gt; &gt; &gt; &gt; that takes packet to distinct nodes from each of the do=
wnstream<br>
&gt; &gt; &gt; &gt; node, or the downstream nodes can be border nodes conne=
cting to<br>
&gt; &gt; &gt; &gt; other segment routing domains where G-SID-2 resolves to=
 distinct<br>
&gt; &gt; &gt; &gt; nodes in each domain.<br>
&gt; &gt; &gt; &gt;<br>
&gt; &gt; &gt; &gt;<br>
&gt; &gt; &gt; &gt; I think you are stretching it too thin.<br>
&gt; &gt; &gt; &gt;<br>
&gt; &gt; &gt; &gt; See even if G-SID-2 is anycast SID you have zero assura=
nce that<br>
&gt; &gt; &gt; &gt; physical<br>
&gt; &gt; nodes packets will land on would be at all diverse.<br>
&gt; &gt; &gt; &gt;<br>
&gt; &gt; &gt; &gt; Likewise crossing domains yet providing identical globa=
l SID now<br>
&gt; &gt; &gt; &gt; to be a<br>
&gt; &gt; different node in each such domain to me is not a realistic examp=
le.<br>
&gt; &gt; &gt; &gt;<br>
&gt; &gt; &gt; &gt; I think we have two options:<br>
&gt; &gt; &gt; &gt;<br>
&gt; &gt; &gt; &gt; A) Firmly state that replication SID MUST be the last o=
ne on the<br>
&gt; &gt; &gt; &gt; stack<br>
&gt; &gt; &gt; &gt;<br>
&gt; &gt; &gt; &gt; B) Instead of real SID after the replication SID provid=
e a<br>
&gt; &gt; &gt; &gt; binding SID which<br>
&gt; &gt; locally will be mapped to a different SID list imposed to each re=
plicated flow.<br>
&gt; &gt; &gt; &gt;<br>
&gt; &gt; &gt; &gt; What is currently in the draft seems to be very counter=
intuitive<br>
&gt; &gt; &gt; &gt; and IMHO<br>
&gt; &gt; will result in operational difficulties.<br>
&gt; &gt; &gt; &gt;<br>
&gt; &gt; &gt; &gt; Thx a lot,<br>
&gt; &gt; &gt; &gt; R.<br>
&gt; &gt; &gt; &gt;<br>
&gt; &gt; &gt; &gt;<br>
&gt; &gt; &gt; &gt; _______________________________________________<br>
&gt; &gt; &gt; &gt; spring mailing list<br>
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From: "Chengli (Cheng Li)" <c.l@huawei.com>
To: James Guichard <james.n.guichard@futurewei.com>, "spring@ietf.org" <spring@ietf.org>
CC: "spring-chairs@ietf.org" <spring-chairs@ietf.org>
Thread-Topic: WG Adoption Call for draft-raza-spring-srv6-yang
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Hi SPRING,

Yes I support the document.
YANG model is an important work for SRv6, and the YANG model has reached th=
e consensus among vendors and operators, so I support the adoption.

Respect,
C.L


From: spring [mailto:spring-bounces@ietf.org] On Behalf Of James Guichard
Sent: Tuesday, July 14, 2020 5:52 AM
To: spring@ietf.org
Cc: spring-chairs@ietf.org
Subject: [spring] WG Adoption Call for draft-raza-spring-srv6-yang

Dear WG:

This email begins a 2 week WG adoption call for https://datatracker.ietf.or=
g/doc/draft-raza-spring-srv6-yang/ ending Monday 27th July 2020.

Please speak up if you support or oppose adopting this document into the WG=
. Please also provide comments/reasons for that support (or lack thereof). =
Silence will not be considered consent.

Thanks!

Jim, Joel & Bruno






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<p class=3D"MsoNormal"><span style=3D"color:#1F497D">Hi SPRING,<o:p></o:p><=
/span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">Yes I support the docu=
ment. <o:p>
</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">YANG model is an impor=
tant work for SRv6, and the YANG model has reached the consensus among vend=
ors and operators, so I support the adoption.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">Respect,<o:p></o:p></s=
pan></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">C.L<o:p></o:p></span><=
/p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b>From:</b> spring [mailto:spring-bounces@ietf.org]=
 <b>On Behalf Of
</b>James Guichard<br>
<b>Sent:</b> Tuesday, July 14, 2020 5:52 AM<br>
<b>To:</b> spring@ietf.org<br>
<b>Cc:</b> spring-chairs@ietf.org<br>
<b>Subject:</b> [spring] WG Adoption Call for draft-raza-spring-srv6-yang<o=
:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Dear WG:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">This email begins a 2 week WG a=
doption call for
<a href=3D"https://datatracker.ietf.org/doc/draft-raza-spring-srv6-yang/">h=
ttps://datatracker.ietf.org/doc/draft-raza-spring-srv6-yang/</a> ending Mon=
day 27<sup>th</sup> July 2020.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Please speak up if you support =
or oppose adopting this document into the WG. Please also provide comments/=
reasons for that support (or lack thereof). Silence will not be considered =
consent.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Thanks!<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Jim, Joel &amp; Bruno<o:p></o:p=
></span></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><i><span style=3D"font-size:12.0pt;font-family:&quot=
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From: Huzhibo <huzhibo@huawei.com>
To: James Guichard <james.n.guichard@futurewei.com>, "spring@ietf.org" <spring@ietf.org>
CC: "spring-chairs@ietf.org" <spring-chairs@ietf.org>
Thread-Topic: WG Adoption Call for draft-raza-spring-srv6-yang
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Hi spring:

      Support as a co-author. I think it's ready to move forward.

Thanks
Zhibo

From: spring [mailto:spring-bounces@ietf.org] On Behalf Of James Guichard
Sent: Tuesday, July 14, 2020 5:52 AM
To: spring@ietf.org
Cc: spring-chairs@ietf.org
Subject: [spring] WG Adoption Call for draft-raza-spring-srv6-yang

Dear WG:

This email begins a 2 week WG adoption call for https://datatracker.ietf.or=
g/doc/draft-raza-spring-srv6-yang/ ending Monday 27th July 2020.

Please speak up if you support or oppose adopting this document into the WG=
. Please also provide comments/reasons for that support (or lack thereof). =
Silence will not be considered consent.

Thanks!

Jim, Joel & Bruno






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<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">Hi spring:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Support as a co-author. I think it=
's ready to move forward.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">Thanks<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">Zhibo<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
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<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US">From:</span></b><span lang=
=3D"EN-US"> spring [mailto:spring-bounces@ietf.org]
<b>On Behalf Of </b>James Guichard<br>
<b>Sent:</b> Tuesday, July 14, 2020 5:52 AM<br>
<b>To:</b> spring@ietf.org<br>
<b>Cc:</b> spring-chairs@ietf.org<br>
<b>Subject:</b> [spring] WG Adoption Call for draft-raza-spring-srv6-yang<o=
:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Dear WG:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">This email begins a 2 week WG a=
doption call for
</span><span lang=3D"EN-US"><a href=3D"https://datatracker.ietf.org/doc/dra=
ft-raza-spring-srv6-yang/"><span lang=3D"EN-CA">https://datatracker.ietf.or=
g/doc/draft-raza-spring-srv6-yang/</span></a></span><span lang=3D"EN-CA"> e=
nding Monday 27<sup>th</sup> July 2020.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Please speak up if you support =
or oppose adopting this document into the WG. Please also provide comments/=
reasons for that support (or lack thereof). Silence will not be considered =
consent.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Thanks!<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Jim, Joel &amp; Bruno<o:p></o:p=
></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
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From: Lizhenbin <lizhenbin@huawei.com>
To: James Guichard <james.n.guichard@futurewei.com>, "spring@ietf.org" <spring@ietf.org>
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10pt;">
<p>Hi All,</p>
<p>&nbsp;</p>
<p>I support the WG adoption of the draft. SR Policy is an important featur=
e and there are multiple implementations. The adoption of the YANG models w=
ill be helpful for the interworking.
</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>Best Regards,</p>
<p>Zhenbin (Robin)</p>
<p>&nbsp;</p>
<p><span></span>&nbsp;</p>
<div style=3D"FONT-SIZE: 16px; FONT-FAMILY: Times New Roman; COLOR: #000000=
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T: 0cm; BORDER-LEFT: medium none; PADDING-RIGHT: 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US">From:</span></b><span lang=
=3D"EN-US"> spring &lt;spring-bounces@ietf.org&gt;
<b>On Behalf Of </b>James Guichard<br>
<b>Sent:</b> 13 July 2020 21:08<br>
<b>To:</b> spring@ietf.org<br>
<b>Cc:</b> spring-chairs@ietf.org<br>
<b>Subject:</b> [spring] WG Adoption Call for draft-raza-spring-sr-policy-y=
ang</span></p>
</div>
</div>
<p class=3D"MsoNormal">&nbsp;</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Dear WG:</span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"></span>&nbsp;</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">This email begins a 2 week WG a=
doption call for
<a href=3D"https://datatracker.ietf.org/doc/draft-raza-spring-sr-policy-yan=
g/" rel=3D"noopener noreferrer" target=3D"_blank">
https://datatracker.ietf.org/doc/draft-raza-spring-sr-policy-yang/</a> endi=
ng Monday 27<sup>th</sup> July 2020.
</span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"></span>&nbsp;</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Please speak up if you support =
or oppose adopting this document into the WG. Please also provide comments/=
reasons for that support (or lack thereof). Silence will not be considered =
consent.</span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"></span>&nbsp;</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Thanks!</span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"></span>&nbsp;</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Jim, Joel &amp; Bruno</span></p=
>
<p class=3D"MsoNormal"><span lang=3D"EN-US"></span>&nbsp;</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"></span>&nbsp;</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"></span>&nbsp;</p>
</div>
</div>
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--_000_5A5B4DE12C0DAC44AF501CD9A2B01A8D937DA655DGGEMM532MBXchi_--


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From: "Xiejingrong (Jingrong)" <xiejingrong@huawei.com>
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From: "Kamran Raza (skraza)" <skraza@cisco.com>
To: James Guichard <james.n.guichard@futurewei.com>, "spring@ietf.org" <spring@ietf.org>
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Thread-Topic: [spring] WG Adoption Call for draft-raza-spring-sr-policy-yang
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Subject: Re: [spring] WG Adoption Call for draft-raza-spring-sr-policy-yang
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From: Huzhibo <huzhibo@huawei.com>
To: James Guichard <james.n.guichard@futurewei.com>, "spring@ietf.org" <spring@ietf.org>
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Thread-Topic: [spring] WG Adoption Call for draft-raza-spring-sr-policy-yang
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support the adoption.

Thanks
Zhibo

From: spring [mailto:spring-bounces@ietf.org] On Behalf Of James Guichard
Sent: Monday, July 13, 2020 11:38 PM
To: spring@ietf.org
Cc: spring-chairs@ietf.org
Subject: [spring] WG Adoption Call for draft-raza-spring-sr-policy-yang

Dear WG:

This email begins a 2 week WG adoption call for https://datatracker.ietf.or=
g/doc/draft-raza-spring-sr-policy-yang/ ending Monday 27th July 2020.

Please speak up if you support or oppose adopting this document into the WG=
. Please also provide comments/reasons for that support (or lack thereof). =
Silence will not be considered consent.

Thanks!

Jim, Joel & Bruno




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<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:12.0pt;font-=
family:&quot;Arial&quot;,sans-serif">support the adoption.<o:p></o:p></span=
></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:12.0pt;font-=
family:&quot;Arial&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:12.0pt;font-=
family:&quot;Arial&quot;,sans-serif">Thanks<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:12.0pt;font-=
family:&quot;Arial&quot;,sans-serif">Zhibo</span><span lang=3D"EN-US" style=
=3D"font-size:10.5pt;color:#1F497D"><o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
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0cm 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US">From:</span></b><span lang=
=3D"EN-US"> spring [mailto:spring-bounces@ietf.org]
<b>On Behalf Of </b>James Guichard<br>
<b>Sent:</b> Monday, July 13, 2020 11:38 PM<br>
<b>To:</b> spring@ietf.org<br>
<b>Cc:</b> spring-chairs@ietf.org<br>
<b>Subject:</b> [spring] WG Adoption Call for draft-raza-spring-sr-policy-y=
ang<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Dear WG:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">This email begins a 2 week WG a=
doption call for
<a href=3D"https://datatracker.ietf.org/doc/draft-raza-spring-sr-policy-yan=
g/">https://datatracker.ietf.org/doc/draft-raza-spring-sr-policy-yang/</a> =
ending Monday 27<sup>th</sup> July 2020.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Please speak up if you support =
or oppose adopting this document into the WG. Please also provide comments/=
reasons for that support (or lack thereof). Silence will not be considered =
consent.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Thanks!<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Jim, Joel &amp; Bruno<o:p></o:p=
></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
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From: "Dongjie (Jimmy)" <jie.dong@huawei.com>
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Subject: Re: [spring] WG Adoption Call for draft-raza-spring-sr-policy-yang
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Hi WG,

I support the adoption of this draft.

Best regards,
Jie

From: spring [mailto:spring-bounces@ietf.org] On Behalf Of James Guichard
Sent: Monday, July 13, 2020 11:38 PM
To: spring@ietf.org
Cc: spring-chairs@ietf.org
Subject: [spring] WG Adoption Call for draft-raza-spring-sr-policy-yang

Dear WG:

This email begins a 2 week WG adoption call for https://datatracker.ietf.or=
g/doc/draft-raza-spring-sr-policy-yang/ ending Monday 27th July 2020.

Please speak up if you support or oppose adopting this document into the WG=
. Please also provide comments/reasons for that support (or lack thereof). =
Silence will not be considered consent.

Thanks!

Jim, Joel & Bruno




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<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">Hi WG,
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">I support the adoption of this draft.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">Best regards,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">Jie<o:p></o:p></span></p>
<p class=3D"MsoNormal"><a name=3D"_MailEndCompose"><span lang=3D"EN-US" sty=
le=3D"font-size:10.5pt;color:#1F497D"><o:p>&nbsp;</o:p></span></a></p>
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<p class=3D"MsoNormal"><b><span lang=3D"EN-US">From:</span></b><span lang=
=3D"EN-US"> spring [mailto:spring-bounces@ietf.org]
<b>On Behalf Of </b>James Guichard<br>
<b>Sent:</b> Monday, July 13, 2020 11:38 PM<br>
<b>To:</b> spring@ietf.org<br>
<b>Cc:</b> spring-chairs@ietf.org<br>
<b>Subject:</b> [spring] WG Adoption Call for draft-raza-spring-sr-policy-y=
ang<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Dear WG:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">This email begins a 2 week WG a=
doption call for
<a href=3D"https://datatracker.ietf.org/doc/draft-raza-spring-sr-policy-yan=
g/">https://datatracker.ietf.org/doc/draft-raza-spring-sr-policy-yang/</a> =
ending Monday 27<sup>th</sup> July 2020.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Please speak up if you support =
or oppose adopting this document into the WG. Please also provide comments/=
reasons for that support (or lack thereof). Silence will not be considered =
consent.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Thanks!<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Jim, Joel &amp; Bruno<o:p></o:p=
></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
</div>
</div>
</body>
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Subject: Re: [spring] WG Adoption Call for draft-raza-spring-srv6-yang
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From: "Dongjie (Jimmy)" <jie.dong@huawei.com>
To: James Guichard <james.n.guichard@futurewei.com>, "spring@ietf.org" <spring@ietf.org>
CC: "spring-chairs@ietf.org" <spring-chairs@ietf.org>
Thread-Topic: WG Adoption Call for draft-raza-spring-srv6-yang
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Date: Wed, 15 Jul 2020 07:14:00 +0000
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Subject: Re: [spring] WG Adoption Call for draft-raza-spring-srv6-yang
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Hi WG,

I support the adoption of this document.

Best regards,
Jie

From: spring [mailto:spring-bounces@ietf.org] On Behalf Of James Guichard
Sent: Tuesday, July 14, 2020 5:52 AM
To: spring@ietf.org
Cc: spring-chairs@ietf.org
Subject: [spring] WG Adoption Call for draft-raza-spring-srv6-yang

Dear WG:

This email begins a 2 week WG adoption call for https://datatracker.ietf.or=
g/doc/draft-raza-spring-srv6-yang/ ending Monday 27th July 2020.

Please speak up if you support or oppose adopting this document into the WG=
. Please also provide comments/reasons for that support (or lack thereof). =
Silence will not be considered consent.

Thanks!

Jim, Joel & Bruno






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<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
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<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
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<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
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<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
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<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">Best regards,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">Jie<o:p></o:p></span></p>
<p class=3D"MsoNormal"><a name=3D"_MailEndCompose"><span lang=3D"EN-US" sty=
le=3D"font-size:10.5pt;color:#1F497D"><o:p>&nbsp;</o:p></span></a></p>
<div style=3D"border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm =
4.0pt">
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US">From:</span></b><span lang=
=3D"EN-US"> spring [mailto:spring-bounces@ietf.org]
<b>On Behalf Of </b>James Guichard<br>
<b>Sent:</b> Tuesday, July 14, 2020 5:52 AM<br>
<b>To:</b> spring@ietf.org<br>
<b>Cc:</b> spring-chairs@ietf.org<br>
<b>Subject:</b> [spring] WG Adoption Call for draft-raza-spring-srv6-yang<o=
:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Dear WG:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">This email begins a 2 week WG a=
doption call for
<a href=3D"https://datatracker.ietf.org/doc/draft-raza-spring-srv6-yang/">h=
ttps://datatracker.ietf.org/doc/draft-raza-spring-srv6-yang/</a> ending Mon=
day 27<sup>th</sup> July 2020.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Please speak up if you support =
or oppose adopting this document into the WG. Please also provide comments/=
reasons for that support (or lack thereof). Silence will not be considered =
consent.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Thanks!<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Jim, Joel &amp; Bruno<o:p></o:p=
></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><i><span lang=3D"EN-US" style=3D"font-size:12.0pt;fo=
nt-family:&quot;Times New Roman&quot;,serif"><o:p>&nbsp;</o:p></span></i></=
p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
</div>
</div>
</body>
</html>

--_000_744007c2496e438d9607a999ed010521huaweicom_--


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From: "Eric Vyncke (evyncke)" <evyncke@cisco.com>
To: "spring@ietf.org" <spring@ietf.org>
CC: "Kamran Raza (skraza)" <skraza@cisco.com>, Robert Sparks <rjsparks@nostrum.com>, =?utf-8?B?TWlyb3NsYXYgS292w6HEjQ==?= <miroslav.kovac@pantheon.tech>, "Benoit Claise (bclaise)" <bclaise@cisco.com>
Thread-Topic: draft-raza-spring-srv6-yang has an XML syntax error breaking the YANG validation chain
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From: James Guichard <james.n.guichard@futurewei.com>
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Subject: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn
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Dear WG:

This email begins a 2 week WG adoption call for https://datatracker.ietf.or=
g/doc/draft-dong-spring-sr-for-enhanced-vpn/ ending Wednesday 29th July 202=
0.

Please speak up if you support or oppose adopting this document into the WG=
. Please also provide comments/reasons for that support (or lack thereof). =
Silence will not be considered consent.

Thanks!

Jim, Joel & Bruno




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<p class=3D"MsoNormal"><span style=3D"mso-fareast-language:ZH-CN">Dear WG:<=
o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-language:ZH-CN"><o:p>&nbs=
p;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-language:ZH-CN">This emai=
l begins a 2 week WG adoption call for
<a href=3D"https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanc=
ed-vpn/">
https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/</a>=
 ending Wednesday 29<sup>th</sup> July 2020.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-language:ZH-CN"><o:p>&nbs=
p;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-language:ZH-CN">Please sp=
eak up if you support or oppose adopting this document into the WG. Please =
also provide comments/reasons for that support (or lack thereof). Silence w=
ill not be considered consent.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-language:ZH-CN"><o:p>&nbs=
p;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-language:ZH-CN">Thanks!<o=
:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-language:ZH-CN"><o:p>&nbs=
p;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-language:ZH-CN">Jim, Joel=
 &amp; Bruno<o:p></o:p></span></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
</body>
</html>

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Thread-Topic: [spring] WG Adoption Call for draft-raza-spring-sr-policy-yang
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Subject: Re: [spring] WG Adoption Call for draft-raza-spring-sr-policy-yang
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From: Zhuangshunwan <zhuangshunwan@huawei.com>
To: James Guichard <james.n.guichard@futurewei.com>, "spring@ietf.org" <spring@ietf.org>
CC: "spring-chairs@ietf.org" <spring-chairs@ietf.org>
Thread-Topic: [spring] WG Adoption Call for draft-raza-spring-sr-policy-yang
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Hi All,

I support the WG adoption of this important Yang model as a co-author.  I b=
elieve it's in a good shape and ready to move forward.

Thanks,
Shunwan


From: spring [mailto:spring-bounces@ietf.org] On Behalf Of James Guichard
Sent: Monday, July 13, 2020 11:38 PM
To: spring@ietf.org
Cc: spring-chairs@ietf.org
Subject: [spring] WG Adoption Call for draft-raza-spring-sr-policy-yang

Dear WG:

This email begins a 2 week WG adoption call for https://datatracker.ietf.or=
g/doc/draft-raza-spring-sr-policy-yang/ ending Monday 27th July 2020.

Please speak up if you support or oppose adopting this document into the WG=
. Please also provide comments/reasons for that support (or lack thereof). =
Silence will not be considered consent.

Thanks!

Jim, Joel & Bruno




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<p class=3D"MsoNormal"><span lang=3D"EN-US">Hi All,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-IN" style=3D"mso-fareast-language:E=
N-US">I support the WG adoption of this important Yang model
</span><span lang=3D"EN-US">as a co-author. &nbsp;I believe it's in a good =
shape and ready to move forward.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Thanks,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Shunwan<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
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<p class=3D"MsoNormal"><b><span lang=3D"EN-US">From:</span></b><span lang=
=3D"EN-US"> spring [mailto:spring-bounces@ietf.org]
<b>On Behalf Of </b>James Guichard<br>
<b>Sent:</b> Monday, July 13, 2020 11:38 PM<br>
<b>To:</b> spring@ietf.org<br>
<b>Cc:</b> spring-chairs@ietf.org<br>
<b>Subject:</b> [spring] WG Adoption Call for draft-raza-spring-sr-policy-y=
ang<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Dear WG:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">This email begins a 2 week WG a=
doption call for
<a href=3D"https://datatracker.ietf.org/doc/draft-raza-spring-sr-policy-yan=
g/">https://datatracker.ietf.org/doc/draft-raza-spring-sr-policy-yang/</a> =
ending Monday 27<sup>th</sup> July 2020.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Please speak up if you support =
or oppose adopting this document into the WG. Please also provide comments/=
reasons for that support (or lack thereof). Silence will not be considered =
consent.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Thanks!<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Jim, Joel &amp; Bruno<o:p></o:p=
></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
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From: Zhuangshunwan <zhuangshunwan@huawei.com>
To: James Guichard <james.n.guichard@futurewei.com>, "spring@ietf.org" <spring@ietf.org>
CC: "spring-chairs@ietf.org" <spring-chairs@ietf.org>
Thread-Topic: WG Adoption Call for draft-raza-spring-srv6-yang
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Hi All,

I support the WG adoption of this important Base Yang model.

Thanks,
Shunwan




From: spring [mailto:spring-bounces@ietf.org] On Behalf Of James Guichard
Sent: Tuesday, July 14, 2020 5:52 AM
To: spring@ietf.org
Cc: spring-chairs@ietf.org
Subject: [spring] WG Adoption Call for draft-raza-spring-srv6-yang

Dear WG:

This email begins a 2 week WG adoption call for https://datatracker.ietf.or=
g/doc/draft-raza-spring-srv6-yang/ ending Monday 27th July 2020.

Please speak up if you support or oppose adopting this document into the WG=
. Please also provide comments/reasons for that support (or lack thereof). =
Silence will not be considered consent.

Thanks!

Jim, Joel & Bruno






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<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Hi All,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-IN" style=3D"mso-fareast-language:E=
N-US">I support the WG adoption of this important Base Yang model</span><sp=
an lang=3D"EN-US">.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Thanks,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Shunwan<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
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<p class=3D"MsoNormal"><b><span lang=3D"EN-US">From:</span></b><span lang=
=3D"EN-US"> spring [mailto:spring-bounces@ietf.org]
<b>On Behalf Of </b>James Guichard<br>
<b>Sent:</b> Tuesday, July 14, 2020 5:52 AM<br>
<b>To:</b> spring@ietf.org<br>
<b>Cc:</b> spring-chairs@ietf.org<br>
<b>Subject:</b> [spring] WG Adoption Call for draft-raza-spring-srv6-yang<o=
:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Dear WG:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">This email begins a 2 week WG a=
doption call for
<a href=3D"https://datatracker.ietf.org/doc/draft-raza-spring-srv6-yang/">h=
ttps://datatracker.ietf.org/doc/draft-raza-spring-srv6-yang/</a> ending Mon=
day 27<sup>th</sup> July 2020.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Please speak up if you support =
or oppose adopting this document into the WG. Please also provide comments/=
reasons for that support (or lack thereof). Silence will not be considered =
consent.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Thanks!<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Jim, Joel &amp; Bruno<o:p></o:p=
></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
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From: Zhuangshunwan <zhuangshunwan@huawei.com>
To: James Guichard <james.n.guichard@futurewei.com>, "spring@ietf.org" <spring@ietf.org>
CC: "spring-chairs@ietf.org" <spring-chairs@ietf.org>
Thread-Topic: WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn
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Date: Wed, 15 Jul 2020 12:28:04 +0000
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Hi Jim, Joel & Bruno,


This document proposes a reasonable enhancement to SR, which makes SR a sui=
table technology for wider range of services and network scenarios.
I support the WG adoption of this useful document.


Thanks,
Shunwan


From: spring [mailto:spring-bounces@ietf.org] On Behalf Of James Guichard
Sent: Wednesday, July 15, 2020 7:17 PM
To: spring@ietf.org
Cc: spring-chairs@ietf.org
Subject: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vp=
n

Dear WG:

This email begins a 2 week WG adoption call for https://datatracker.ietf.or=
g/doc/draft-dong-spring-sr-for-enhanced-vpn/ ending Wednesday 29th July 202=
0.

Please speak up if you support or oppose adopting this document into the WG=
. Please also provide comments/reasons for that support (or lack thereof). =
Silence will not be considered consent.

Thanks!

Jim, Joel & Bruno




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<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span lang=3D"EN-US">Hi Jim, Joel &amp; Bruno,<o:p><=
/o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">This document proposes a reason=
able enhancement to SR, which makes SR a suitable technology for wider rang=
e of services and network scenarios.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">I support the WG adoption of th=
is useful document.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Thanks,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Shunwan<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<div>
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0cm 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US">From:</span></b><span lang=
=3D"EN-US"> spring [mailto:spring-bounces@ietf.org]
<b>On Behalf Of </b>James Guichard<br>
<b>Sent:</b> Wednesday, July 15, 2020 7:17 PM<br>
<b>To:</b> spring@ietf.org<br>
<b>Cc:</b> spring-chairs@ietf.org<br>
<b>Subject:</b> [spring] WG Adoption Call for draft-dong-spring-sr-for-enha=
nced-vpn<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Dear WG:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">This email begins a 2 week WG a=
doption call for
<a href=3D"https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanc=
ed-vpn/">
https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/</a>=
 ending Wednesday 29<sup>th</sup> July 2020.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Please speak up if you support =
or oppose adopting this document into the WG. Please also provide comments/=
reasons for that support (or lack thereof). Silence will not be considered =
consent.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Thanks!<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Jim, Joel &amp; Bruno<o:p></o:p=
></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
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--_000_272a4dec261e4bfe8bccd7ce551e535bhuaweicom_--


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From: "Voyer, Daniel" <daniel.voyer@bell.ca>
To: James Guichard <james.n.guichard@futurewei.com>, "spring@ietf.org" <spring@ietf.org>
CC: "spring-chairs@ietf.org" <spring-chairs@ietf.org>
Thread-Topic: [EXT][spring] WG Adoption Call for draft-raza-spring-sr-policy-yang
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Date: Wed, 15 Jul 2020 21:25:51 +0800
From: "duzongpeng@foxmail.com" <duzongpeng@foxmail.com>
To: "Dongjie (Jimmy)" <jie.dong@huawei.com>,  "spring@ietf.org" <spring@ietf.org>
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Subject: Re: [spring] New version update and request for WG adoption of draft-dong-spring-sr-for-enhanced-vpn-09
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<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charse=
t=3Dutf-8"><style>body { line-height: 1.5; }blockquote { margin-top: 0px; =
margin-bottom: 0px; margin-left: 0.5em; }body { font-size: 10.5pt; font-fa=
mily: 'Microsoft YaHei UI'; color: rgb(0, 0, 0); line-height: 1.5; }</styl=
e></head><body>=0A<div><span></span>Hi all,</div><div><br></div><div><span=
 microsoft=3D"" yahei=3D"" ui';=3D"" font-size:=3D"" 14px;=3D"" color:=3D"=
" rgb(0,=3D"" 0,=3D"" 0);=3D"" background-color:=3D"" rgba(0,=3D"" font-we=
ight:=3D"" normal;=3D"" font-style:=3D"" normal;text-decoration:=3D"" none=
;'=3D"">&nbsp; &nbsp; I&nbsp;support&nbsp;the&nbsp;WG&nbsp;adoption&nbsp;o=
f&nbsp;this&nbsp;document.&nbsp;It&nbsp;provides&nbsp;a&nbsp;valuable&nbsp=
;tool&nbsp;to&nbsp;satisfy&nbsp;the&nbsp;different&nbsp;kinds&nbsp;of&nbsp=
;service&nbsp;in&nbsp;the&nbsp;network.</span></div>=0A<div><br></div><div=
>Best Regards</div><div>Zongpeng Du</div><div><br></div><hr style=3D"width=
: 210px; height: 1px;" color=3D"#b5c4df" size=3D"1" align=3D"left">=0A<div=
><span><div style=3D"margin: 10px;"><div><a href=3D"mailto:duzongpeng@foxm=
ail.com" style=3D"font-family: verdana; font-size: 13.3333px; background-c=
olor: transparent;">duzongpeng@foxmail.com</a><span style=3D"font-family: =
verdana; font-size: 13.3333px; color: rgb(0, 0, 0); background-color: rgba=
(0, 0, 0, 0);">&nbsp;&amp;&nbsp;</span><span style=3D"background-color: tr=
ansparent; font-size: 13.3333px; line-height: 20px;"><font face=3D"verdana=
">duzongpeng@chinamobile.com</font></span></div><font face=3D"verdana"><sp=
an style=3D"font-size: 13.3333px; color: rgb(0, 0, 0); background-color: r=
gba(0, 0, 0, 0); font-size: 13.3333px;"></span></font></div></span></div>=
=0A<blockquote style=3D"margin-Top: 0px; margin-Bottom: 0px; margin-Left: =
0.5em; margin-Right: inherit"><div>&nbsp;</div><div style=3D"border:none;b=
order-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm"><div style=3D"PAD=
DING-RIGHT: 8px; PADDING-LEFT: 8px; FONT-SIZE: 12px;FONT-FAMILY:tahoma;COL=
OR:#000000; BACKGROUND: #efefef; PADDING-BOTTOM: 8px; PADDING-TOP: 8px"><d=
iv><b>From:</b>&nbsp;<a href=3D"mailto:jie.dong@huawei.com">Dongjie (Jimmy=
)</a></div><div><b>Date:</b>&nbsp;2020-07-14&nbsp;17:46</div><div><b>To:</=
b>&nbsp;<a href=3D"mailto:spring@ietf.org">spring@ietf.org</a></div><div><=
b>CC:</b>&nbsp;<a href=3D"mailto:spring-chairs@ietf.org">spring-chairs@iet=
f.org</a></div><div><b>Subject:</b>&nbsp;[spring] New version update and r=
equest for WG adoption of draft-dong-spring-sr-for-enhanced-vpn-09</div></=
div></div><div><div>Hi all, </div>=0A<div>&nbsp;</div>=0A<div>We've submit=
ted a new revision of draft-dong-spring-sr-for-enhanced-vpn. The major cha=
nges in this version are: </div>=0A<div>&nbsp;</div>=0A<div>1. Francois Cl=
ad joined as co-author.</div>=0A<div>&nbsp;</div>=0A<div>2. Some text is a=
dded to clarify the mechanism introduced in this document, and its relatio=
nship with the existing work.</div>=0A<div>&nbsp;</div>=0A<div>3. Solved t=
he recent comment from Joel about reducing the service requirement descrip=
tion in section 4.</div>=0A<div>&nbsp;</div>=0A<div>4. Some editorial chan=
ges</div>=0A<div>&nbsp;</div>=0A<div>With this update, we believe all the =
comments received so far have been resolved. Thus the authors would like t=
o request (again) for WG adoption of this document. Thanks.</div>=0A<div>&=
nbsp;</div>=0A<div>Best regards,</div>=0A<div>Jie</div>=0A<div>&nbsp;</div=
>=0A<div>-----Original Message-----</div>=0A<div>From: internet-drafts@iet=
f.org [mailto:internet-drafts@ietf.org] </div>=0A<div>Sent: Monday, July 1=
3, 2020 10:46 PM</div>=0A<div>To: Dongjie (Jimmy) &lt;jie.dong@huawei.com&=
gt;; Fengwei Qin &lt;qinfengwei@chinamobile.com&gt;; Zhenqiang Li &lt;li_z=
henqiang@hotmail.com&gt;; Francois Clad &lt;fclad@cisco.com&gt;; Stewart B=
ryant &lt;stewart.bryant@gmail.com&gt;; Yongqing Zhu &lt;zhuyq8@chinatelec=
om.cn&gt;; Takuya Miyasaka &lt;ta-miyasaka@kddi.com&gt;</div>=0A<div>Subje=
ct: New Version Notification for draft-dong-spring-sr-for-enhanced-vpn-09.=
txt</div>=0A<div>&nbsp;</div>=0A<div>&nbsp;</div>=0A<div>A new version of =
I-D, draft-dong-spring-sr-for-enhanced-vpn-09.txt</div>=0A<div>has been su=
ccessfully submitted by Jie Dong and posted to the IETF repository.</div>=
=0A<div>&nbsp;</div>=0A<div>Name:		draft-dong-spring-sr-for-enhanced-vpn</=
div>=0A<div>Revision:	09</div>=0A<div>Title:		Segment Routing for Resource=
 Guaranteed Virtual Networks</div>=0A<div>Document date:	2020-07-13</div>=
=0A<div>Group:		Individual Submission</div>=0A<div>Pages:		19</div>=0A<div=
>URL:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ht=
tps://www.ietf.org/internet-drafts/draft-dong-spring-sr-for-enhanced-vpn-0=
9.txt</div>=0A<div>Status:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
 https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/</=
div>=0A<div>Htmlized:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; https://tools.ie=
tf.org/html/draft-dong-spring-sr-for-enhanced-vpn-09</div>=0A<div>Htmlized=
:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; https://datatracker.ietf.org/doc/htm=
l/draft-dong-spring-sr-for-enhanced-vpn</div>=0A<div>Diff:&nbsp;&nbsp;&nbs=
p;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; https://www.ietf.org/rfcdiff?=
url2=3Ddraft-dong-spring-sr-for-enhanced-vpn-09</div>=0A<div>&nbsp;</div>=
=0A<div>Abstract:</div>=0A<div>&nbsp;&nbsp; This document describes the me=
chanism to associate network resource</div>=0A<div>&nbsp;&nbsp; attributes=
 to Segment Routing Identifiers (SIDs).&nbsp; Such SIDs are</div>=0A<div>&=
nbsp;&nbsp; referred to as resource-aware SIDs in this document.&nbsp; The=
 resource-</div>=0A<div>&nbsp;&nbsp; aware SIDs retain their original forw=
arding semantics, but with the</div>=0A<div>&nbsp;&nbsp; additional semant=
ics to identify the set of network resources</div>=0A<div>&nbsp;&nbsp; ava=
ilable for the packet processing action.&nbsp; The resource-aware SIDs</di=
v>=0A<div>&nbsp;&nbsp; can therefore be used to build SR paths with a set =
of reserved</div>=0A<div>&nbsp;&nbsp; network resources.&nbsp; In addition=
, the resource-aware SIDs can also be</div>=0A<div>&nbsp;&nbsp; used to bu=
ild SR based virtual networks, which provide the network</div>=0A<div>&nbs=
p;&nbsp; topology and resource attributes required by customers or service=
s.</div>=0A<div>&nbsp;&nbsp; The proposed mechanism is applicable to both =
segment routing with</div>=0A<div>&nbsp;&nbsp; MPLS data plane (SR-MPLS) a=
nd segment routing with IPv6 data plane</div>=0A<div>&nbsp;&nbsp; (SRv6).<=
/div>=0A<div>&nbsp;</div>=0A<div>&nbsp;</div>=0A<div>&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp; </div>=0A<div>&nbsp;</div>=0A<div>&nbsp;</div>=0A<di=
v>Please note that it may take a couple of minutes from the time of submis=
sion until the htmlized version and diff are available at tools.ietf.org.<=
/div>=0A<div>&nbsp;</div>=0A<div>The IETF Secretariat</div>=0A<div>&nbsp;<=
/div>=0A<div>&nbsp;</div>=0A<div>_________________________________________=
______</div>=0A<div>spring mailing list</div>=0A<div>spring@ietf.org</div>=
=0A<div>https://www.ietf.org/mailman/listinfo/spring</div>=0A</div></block=
quote>=0A</body></html>
------=_001_NextPart855008437020_=------

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From: Lizhenbin <lizhenbin@huawei.com>
To: James Guichard <james.n.guichard@futurewei.com>, "spring@ietf.org" <spring@ietf.org>
CC: "spring-chairs@ietf.org" <spring-chairs@ietf.org>
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10pt;">
<p>Hi All,</p>
<p>I support the adoption of the draft. There has been multiple implementat=
ions of SRv6. The&nbsp;YANG model will facilitate the interworking for the =
configuration.&nbsp;</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>Best Regards,</p>
<p>Zhenbin (Robin)</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<div style=3D"FONT-SIZE: 16px; FONT-FAMILY: Times New Roman; COLOR: #000000=
">
<hr tabindex=3D"-1">
<div id=3D"divRpF158859" style=3D"DIRECTION: ltr"><font color=3D"#000000" s=
ize=3D"2" face=3D"Tahoma"><b>=B7=A2=BC=FE=C8=CB:</b> spring [spring-bounces=
@ietf.org] =B4=FA=B1=ED James Guichard [james.n.guichard@futurewei.com]<br>
<b>=B7=A2=CB=CD=CA=B1=BC=E4:</b> 2020=C4=EA7=D4=C214=C8=D5 5:52<br>
<b>=CA=D5=BC=FE=C8=CB:</b> spring@ietf.org<br>
<b>=B3=AD=CB=CD:</b> spring-chairs@ietf.org<br>
<b>=D6=F7=CC=E2:</b> [spring] WG Adoption Call for draft-raza-spring-srv6-y=
ang<br>
</font><br>
</div>
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<p class=3D"MsoNormal"><span lang=3D"EN-CA">Dear WG:</span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA"></span>&nbsp;</p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">This email begins a 2 week WG a=
doption call for
<a href=3D"https://datatracker.ietf.org/doc/draft-raza-spring-srv6-yang/" r=
el=3D"noopener noreferrer" target=3D"_blank">
https://datatracker.ietf.org/doc/draft-raza-spring-srv6-yang/</a> ending Mo=
nday 27<sup>th</sup> July 2020.
</span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA"></span>&nbsp;</p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Please speak up if you support =
or oppose adopting this document into the WG. Please also provide comments/=
reasons for that support (or lack thereof). Silence will not be considered =
consent.</span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA"></span>&nbsp;</p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Thanks!</span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA"></span>&nbsp;</p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Jim, Joel &amp; Bruno</span></p=
>
<p class=3D"MsoNormal">&nbsp;</p>
<p class=3D"MsoNormal">&nbsp;</p>
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Subject: Re: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn
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Hi WG,

I support the WG adoption. It is a useful enhancement to SR and can provide=
s better network SLA assurance capabilities.


Thanks,
Zhibo


From: spring [mailto:spring-bounces@ietf.org] On Behalf Of James Guichard
Sent: Wednesday, July 15, 2020 7:17 PM
To: spring@ietf.org
Cc: spring-chairs@ietf.org
Subject: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vp=
n

Dear WG:

This email begins a 2 week WG adoption call for https://datatracker.ietf.or=
g/doc/draft-dong-spring-sr-for-enhanced-vpn/ ending Wednesday 29th July 202=
0.

Please speak up if you support or oppose adopting this document into the WG=
. Please also provide comments/reasons for that support (or lack thereof). =
Silence will not be considered consent.

Thanks!

Jim, Joel & Bruno




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<p class=3D"MsoNormal"><span lang=3D"EN-US">Hi WG,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">I support the WG adoption. It i=
s a useful enhancement to SR and can provides better network SLA assurance =
capabilities.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Thanks,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Zhibo<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
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0cm 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US">From:</span></b><span lang=
=3D"EN-US"> spring [mailto:spring-bounces@ietf.org]
<b>On Behalf Of </b>James Guichard<br>
<b>Sent:</b> Wednesday, July 15, 2020 7:17 PM<br>
<b>To:</b> spring@ietf.org<br>
<b>Cc:</b> spring-chairs@ietf.org<br>
<b>Subject:</b> [spring] WG Adoption Call for draft-dong-spring-sr-for-enha=
nced-vpn<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Dear WG:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">This email begins a 2 week WG a=
doption call for
<a href=3D"https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanc=
ed-vpn/">
https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/</a>=
 ending Wednesday 29<sup>th</sup> July 2020.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Please speak up if you support =
or oppose adopting this document into the WG. Please also provide comments/=
reasons for that support (or lack thereof). Silence will not be considered =
consent.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Thanks!<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Jim, Joel &amp; Bruno<o:p></o:p=
></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
</div>
</body>
</html>

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Subject: Re: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn
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<o:shapelayout v:ext=3D"edit">=0A=
<o:idmap v:ext=3D"edit" data=3D"1" ></o:idmap>=0A=
</o:shapelayout></xml><![endif]-->=0A=
<div><span></span>AS a coauthor, I support this adoption.</div><div><br></d=
iv><div>I believe the new kind of SID introduced in this doc, the resource-=
aware SID, is a significant extension to SR to enable the VPN&#43; service =
defined in&nbsp;draft-ietf-teas-enhanced-vpn.</div>=0A=
<div><br></div><div>Best Regards,</div><div>Zhenqiang Li</div><hr style=3D"=
width: 210px; height: 1px;" color=3D"#b5c4df" size=3D"1" align=3D"left">=0A=
<div><span><div style=3D"MARGIN: 10px; FONT-FAMILY: verdana; FONT-SIZE: 10p=
t"><div>li_zhenqiang@hotmail.com</div></div></span></div>=0A=
<blockquote style=3D"margin-Top: 0px; margin-Bottom: 0px; margin-Left: 0.5e=
m"><div>&nbsp;</div><div style=3D"border:none;border-top:solid #B5C4DF 1.0p=
t;padding:3.0pt 0cm 0cm 0cm"><div style=3D"PADDING-RIGHT: 8px; PADDING-LEFT=
: 8px; FONT-SIZE: 12px;FONT-FAMILY:tahoma;COLOR:#000000; BACKGROUND: #efefe=
f; PADDING-BOTTOM: 8px; PADDING-TOP: 8px"><div><b>From:</b>&nbsp;<a href=3D=
"mailto:james.n.guichard@futurewei.com" style=3D"color: rgb(5, 99, 193); te=
xt-decoration: underline;">James Guichard</a></div><div><b>Date:</b>&nbsp;2=
020-07-15&nbsp;19:16</div><div><b>To:</b>&nbsp;<a href=3D"mailto:spring@iet=
f.org" style=3D"color: rgb(5, 99, 193); text-decoration: underline;">spring=
@ietf.org</a></div><div><b>CC:</b>&nbsp;<a href=3D"mailto:spring-chairs@iet=
f.org" style=3D"color: rgb(5, 99, 193); text-decoration: underline;">spring=
-chairs@ietf.org</a></div><div><b>Subject:</b>&nbsp;[spring] WG Adoption Ca=
ll for draft-dong-spring-sr-for-enhanced-vpn</div></div></div><div><div cla=
ss=3D"FoxDiv20200715212256849306">=0A=
<!--[if gte mso 9]><xml>=0A=
<o:shapedefaults v:ext=3D"edit" spidmax=3D"1026" ></o:shapedefaults>=0A=
</xml><![endif]--><!--[if gte mso 9]><xml>=0A=
<o:shapelayout v:ext=3D"edit">=0A=
<o:idmap v:ext=3D"edit" data=3D"1" ></o:idmap>=0A=
</o:shapelayout></xml><![endif]-->=0A=
<div class=3D"WordSection1" style=3D"page: WordSection1;">=0A=
<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;"><span style=3D"mso-fareast-language:ZH-C=
N">Dear WG:<o:p></o:p></span></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;"><span style=3D"mso-fareast-language:ZH-C=
N"><o:p>&nbsp;</o:p></span></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;"><span style=3D"mso-fareast-language:ZH-C=
N">This email begins a 2 week WG adoption call for=0A=
<a href=3D"https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanc=
ed-vpn/" style=3D"color: rgb(5, 99, 193); text-decoration: underline;" clas=
s=3D"">=0A=
https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/</a>=
 ending Wednesday 29<sup>th</sup> July 2020.=0A=
<o:p></o:p></span></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;"><span style=3D"mso-fareast-language:ZH-C=
N"><o:p>&nbsp;</o:p></span></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;"><span style=3D"mso-fareast-language:ZH-C=
N">Please speak up if you support or oppose adopting this document into the=
 WG. Please also provide comments/reasons for that support (or lack thereof=
). Silence will not be considered consent.<o:p></o:p></span></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;"><span style=3D"mso-fareast-language:ZH-C=
N"><o:p>&nbsp;</o:p></span></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;"><span style=3D"mso-fareast-language:ZH-C=
N">Thanks!<o:p></o:p></span></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;"><span style=3D"mso-fareast-language:ZH-C=
N"><o:p>&nbsp;</o:p></span></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;"><span style=3D"mso-fareast-language:ZH-C=
N">Jim, Joel &amp; Bruno<o:p></o:p></span></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;"><o:p>&nbsp;</o:p></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;"><o:p>&nbsp;</o:p></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;"><o:p>&nbsp;</o:p></p>=0A=
</div>=0A=
</div></div></blockquote>=0A=
</body></html>=

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Date: Wed, 15 Jul 2020 21:39:15 +0800
From: "li_zhenqiang@hotmail.com" <li_zhenqiang@hotmail.com>
To: "Jaganbabu Rajamanickam \(jrajaman\)" <jrajaman=40cisco.com@dmarc.ietf.org>,  "James Guichard" <james.n.guichard@futurewei.com>,  "spring@ietf.org" <spring@ietf.org>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/WFD6sRVkV5jY_dURJdpG8ukI4b0>
Subject: Re: [spring] WG Adoption Call for draft-raza-spring-sr-policy-yang
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<html><head>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dutf-8"><s=
tyle>body { line-height: 1.5; }blockquote { margin-top: 0px; margin-bottom:=
 0px; margin-left: 0.5em; }p { margin-top: 0px; margin-bottom: 0px; }div.Fo=
xDiv20200715213715929869 { }body { font-size: 10.5pt; font-family: =E5=BE=
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tyle></head><body>=0A=
<div><span></span>What do you mean by the SRV6 base draft?&nbsp;</div>=0A=
<div><br></div><div>Regards,</div><div>Zhenqiang Li</div><hr style=3D"width=
: 210px; height: 1px;" color=3D"#b5c4df" size=3D"1" align=3D"left">=0A=
<div><span><div style=3D"MARGIN: 10px; FONT-FAMILY: verdana; FONT-SIZE: 10p=
t"><div>li_zhenqiang@hotmail.com</div></div></span></div>=0A=
<blockquote style=3D"margin-Top: 0px; margin-Bottom: 0px; margin-Left: 0.5e=
m"><div>&nbsp;</div><div style=3D"border:none;border-top:solid #B5C4DF 1.0p=
t;padding:3.0pt 0cm 0cm 0cm"><div style=3D"PADDING-RIGHT: 8px; PADDING-LEFT=
: 8px; FONT-SIZE: 12px;FONT-FAMILY:tahoma;COLOR:#000000; BACKGROUND: #efefe=
f; PADDING-BOTTOM: 8px; PADDING-TOP: 8px"><div><b>From:</b>&nbsp;<a href=3D=
"mailto:jrajaman=3D40cisco.com@dmarc.ietf.org" style=3D"color: rgb(5, 99, 1=
93); text-decoration: underline;">Jaganbabu Rajamanickam \(jrajaman\)</a></=
div><div><b>Date:</b>&nbsp;2020-07-15&nbsp;19:36</div><div><b>To:</b>&nbsp;=
<a href=3D"mailto:james.n.guichard@futurewei.com" style=3D"color: rgb(5, 99=
, 193); text-decoration: underline;">James Guichard</a>; <a href=3D"mailto:=
spring@ietf.org" style=3D"color: rgb(5, 99, 193); text-decoration: underlin=
e;">spring@ietf.org</a></div><div><b>CC:</b>&nbsp;<a href=3D"mailto:spring-=
chairs@ietf.org" style=3D"color: rgb(5, 99, 193); text-decoration: underlin=
e;">spring-chairs@ietf.org</a></div><div><b>Subject:</b>&nbsp;Re: [spring] =
WG Adoption Call for draft-raza-spring-sr-policy-yang</div></div></div><div=
><div class=3D"FoxDiv20200715213715929869">=0A=
<div class=3D"WordSection1" style=3D"page: WordSection1;">=0A=
<p class=3D"MsoNormal" style=3D"margin: 0cm 0cm 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;">Hello Jim, Joel &amp; Bruno,<o:p></o:p><=
/p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0cm 0cm 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;">&nbsp;&nbsp; I would strongly support WG=
 adoption of the SRV6 base draft, as all the other SRv6 drafts will depends=
 on this.<o:p></o:p></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0cm 0cm 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;"><o:p>&nbsp;</o:p></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0cm 0cm 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;">Thanx,<o:p></o:p></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0cm 0cm 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;">Jags<o:p></o:p></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0cm 0cm 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;"><o:p>&nbsp;</o:p></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0cm 0cm 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;"><o:p>&nbsp;</o:p></p>=0A=
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm =
0cm 0cm">=0A=
<p class=3D"MsoNormal" style=3D"margin: 0cm 0cm 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;"><b><span style=3D"font-size:12.0pt;color=
:black">From: </span></b><span style=3D"font-size:12.0pt;color:black">sprin=
g &lt;spring-bounces@ietf.org&gt; on behalf of James Guichard &lt;james.n.g=
uichard@futurewei.com&gt;<br>=0A=
<b>Date: </b>Monday, July 13, 2020 at 11:38 AM<br>=0A=
<b>To: </b>&quot;spring@ietf.org&quot; &lt;spring@ietf.org&gt;<br>=0A=
<b>Cc: </b>&quot;spring-chairs@ietf.org&quot; &lt;spring-chairs@ietf.org&gt=
;<br>=0A=
<b>Subject: </b>[spring] WG Adoption Call for draft-raza-spring-sr-policy-y=
ang<o:p></o:p></span></p>=0A=
</div>=0A=
<div>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0cm 0cm 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;"><o:p>&nbsp;</o:p></p>=0A=
</div>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0cm 0cm 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;">Dear WG:<o:p></o:p></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0cm 0cm 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;">&nbsp;<o:p></o:p></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0cm 0cm 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;">This email begins a 2 week WG adoption c=
all for <a href=3D"https://datatracker.ietf.org/doc/draft-raza-spring-sr-po=
licy-yang/" style=3D"color: rgb(5, 99, 193); text-decoration: underline;">=
=0A=
https://datatracker.ietf.org/doc/draft-raza-spring-sr-policy-yang/</a> endi=
ng Monday 27<sup>th</sup> July 2020.=0A=
<o:p></o:p></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0cm 0cm 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;">&nbsp;<o:p></o:p></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0cm 0cm 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;">Please speak up if you support or oppose=
 adopting this document into the WG. Please also provide comments/reasons f=
or that support (or lack thereof). Silence will not be considered consent.<=
o:p></o:p></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0cm 0cm 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;">&nbsp;<o:p></o:p></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0cm 0cm 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;">Thanks!<o:p></o:p></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0cm 0cm 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;">&nbsp;<o:p></o:p></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0cm 0cm 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;">Jim, Joel &amp; Bruno<o:p></o:p></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0cm 0cm 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;">&nbsp;<o:p></o:p></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0cm 0cm 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;">&nbsp;<o:p></o:p></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0cm 0cm 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;">&nbsp;<o:p></o:p></p>=0A=
</div>=0A=
</div></div></blockquote>=0A=
</body></html>=

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Date: Wed, 15 Jul 2020 21:43:37 +0800
From: "li_zhenqiang@hotmail.com" <li_zhenqiang@hotmail.com>
To: "James Guichard" <james.n.guichard@futurewei.com>,  "spring@ietf.org" <spring@ietf.org>
Cc: "spring-chairs@ietf.org" <spring-chairs@ietf.org>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/i1wJKbNGtPasBip_0gXA-Pi5io8>
Subject: Re: [spring] WG Adoption Call for draft-raza-spring-srv6-yang
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<html><head>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Diso-8859-=
1"><style>body { line-height: 1.5; }blockquote { margin-top: 0px; margin-bo=
ttom: 0px; margin-left: 0.5em; }p { margin-top: 0px; margin-bottom: 0px; }d=
iv.FoxDiv20200715213952888720 { }body { font-size: 10.5pt; font-family: ???=
?; color: rgb(0, 0, 0); line-height: 1.5; }</style></head><body>=0A=
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<o:idmap v:ext=3D"edit" data=3D"1" ></o:idmap>=0A=
</o:shapelayout></xml><![endif]-->=0A=
<div><span></span>I support the adoption since this doc is an integral memb=
er of the SRv6&nbsp;<span style=3D"font-size: 10.5pt; line-height: 1.5; bac=
kground-color: transparent;">standard&nbsp;</span><span style=3D"font-size:=
 10.5pt; line-height: 1.5; background-color: transparent;">family.</span></=
div>=0A=
<div><br></div><div>Best Regards,</div><div>Zhenqiang Li</div><hr style=3D"=
width: 210px; height: 1px;" color=3D"#b5c4df" size=3D"1" align=3D"left">=0A=
<div><span><div style=3D"MARGIN: 10px; FONT-FAMILY: verdana; FONT-SIZE: 10p=
t"><div>li_zhenqiang@hotmail.com</div></div></span></div>=0A=
<blockquote style=3D"margin-Top: 0px; margin-Bottom: 0px; margin-Left: 0.5e=
m"><div>&nbsp;</div><div style=3D"border:none;border-top:solid #B5C4DF 1.0p=
t;padding:3.0pt 0cm 0cm 0cm"><div style=3D"PADDING-RIGHT: 8px; PADDING-LEFT=
: 8px; FONT-SIZE: 12px;FONT-FAMILY:tahoma;COLOR:#000000; BACKGROUND: #efefe=
f; PADDING-BOTTOM: 8px; PADDING-TOP: 8px"><div><b>From:</b>&nbsp;<a href=3D=
"mailto:james.n.guichard@futurewei.com" style=3D"color: rgb(5, 99, 193); te=
xt-decoration: underline;">James Guichard</a></div><div><b>Date:</b>&nbsp;2=
020-07-14&nbsp;05:52</div><div><b>To:</b>&nbsp;<a href=3D"mailto:spring@iet=
f.org" style=3D"color: rgb(5, 99, 193); text-decoration: underline;">spring=
@ietf.org</a></div><div><b>CC:</b>&nbsp;<a href=3D"mailto:spring-chairs@iet=
f.org" style=3D"color: rgb(5, 99, 193); text-decoration: underline;">spring=
-chairs@ietf.org</a></div><div><b>Subject:</b>&nbsp;[spring] WG Adoption Ca=
ll for draft-raza-spring-srv6-yang</div></div></div><div><div class=3D"FoxD=
iv20200715213952888720">=0A=
<!--[if gte mso 9]><xml>=0A=
<o:shapedefaults v:ext=3D"edit" spidmax=3D"1026" ></o:shapedefaults>=0A=
</xml><![endif]--><!--[if gte mso 9]><xml>=0A=
<o:shapelayout v:ext=3D"edit">=0A=
<o:idmap v:ext=3D"edit" data=3D"1" ></o:idmap>=0A=
</o:shapelayout></xml><![endif]-->=0A=
<div class=3D"WordSection1" style=3D"page: WordSection1;">=0A=
<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;"><span lang=3D"EN-CA">Dear WG:<o:p></o:p>=
</span></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;"><span lang=3D"EN-CA">&nbsp;<o:p></o:p></=
span></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;"><span lang=3D"EN-CA">This email begins a=
 2 week WG adoption call for=0A=
<a href=3D"https://datatracker.ietf.org/doc/draft-raza-spring-srv6-yang/" s=
tyle=3D"color: rgb(5, 99, 193); text-decoration: underline;">https://datatr=
acker.ietf.org/doc/draft-raza-spring-srv6-yang/</a> ending Monday 27<sup>th=
</sup> July 2020.=0A=
<o:p></o:p></span></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;"><span lang=3D"EN-CA">&nbsp;<o:p></o:p></=
span></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;"><span lang=3D"EN-CA">Please speak up if =
you support or oppose adopting this document into the WG. Please also provi=
de comments/reasons for that support (or lack thereof). Silence will not be=
 considered consent.<o:p></o:p></span></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;"><span lang=3D"EN-CA">&nbsp;<o:p></o:p></=
span></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;"><span lang=3D"EN-CA">Thanks!<o:p></o:p><=
/span></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;"><span lang=3D"EN-CA">&nbsp;<o:p></o:p></=
span></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;"><span lang=3D"EN-CA">Jim, Joel &amp; Bru=
no<o:p></o:p></span></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;"><o:p>&nbsp;</o:p></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;"><o:p>&nbsp;</o:p></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;"><b><span style=3D"font-size:12.0pt"></sp=
an></b><i><span style=3D"font-size:12.0pt;font-family:&quot;Times New Roman=
&quot;,serif"><o:p></o:p></span></i></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;"><o:p>&nbsp;</o:p></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;"><o:p>&nbsp;</o:p></p>=0A=
</div>=0A=
</div></div></blockquote>=0A=
</body></html>=

------=_001_NextPart213803185882_=------


From nobody Wed Jul 15 06:44:03 2020
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Subject: [spring] =?gb2312?b?tPC4tDogIFdHIEFkb3B0aW9uIENhbGwgZm9yIGRyYWZ0?= =?gb2312?b?LWRvbmctc3ByaW5nLXNyLWZvci1lbmhhbmNlZC12cG4=?=
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------=_NextPart_000_04FB_01D65AF1.05E39F30
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Hi,

         Adding resource semantic to SR SIDs is an useful feature for
operator to meet different customers service requirement in SR based
network, and this document is in a good shape. Thus I support the =
adoption
as co-author.

=20

=20

=20

=20

Thanks,

Fengwei Qin

=20

=B7=A2=BC=FE=C8=CB: spring [mailto:spring-bounces@ietf.org] =B4=FA=B1=ED =
James Guichard
=B7=A2=CB=CD=CA=B1=BC=E4: 2020=C4=EA7=D4=C215=C8=D5 19:17
=CA=D5=BC=FE=C8=CB: spring@ietf.org
=B3=AD=CB=CD: spring-chairs@ietf.org
=D6=F7=CC=E2: [spring] WG Adoption Call for =
draft-dong-spring-sr-for-enhanced-vpn

=20

Dear WG:

=20

This email begins a 2 week WG adoption call for
https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/
ending Wednesday 29th July 2020.=20

=20

Please speak up if you support or oppose adopting this document into the =
WG.
Please also provide comments/reasons for that support (or lack thereof).
Silence will not be considered consent.

=20

Thanks!

=20

Jim, Joel & Bruno

=20

=20

=20


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link=3D"#0563C1" vlink=3D"#954F72"><div class=3DWordSection1><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.5pt;color:#1F497D'>Hi,<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.5pt;color:#1F497D'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp; Adding resource semantic to SR SIDs is an useful =
feature for operator to meet different customers service requirement in =
SR based network, and this document is in a good shape. Thus I support =
the adoption as co-author.</span><span =
lang=3DEN-US><o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.5pt;color:#1F497D'><o:p>&nbsp;</o:p></span></p><div=
><p class=3DMsoNormal =
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style=3D'font-size:10.5pt;color:black'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal =
style=3D'text-align:justify;text-justify:inter-ideograph'><span =
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style=3D'font-size:10.5pt;color:black'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal =
style=3D'text-align:justify;text-justify:inter-ideograph'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;color:black'>Thanks,<o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'text-align:justify;text-justify:inter-ideograph'><span =
lang=3DEN-US style=3D'font-size:10.5pt;color:black'>Fengwei =
Qin<o:p></o:p></span></p></div><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.5pt;color:#1F497D'><o:p>&nbsp;</o:p></span></p><div=
><div style=3D'border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt =
0cm 0cm 0cm'><p class=3DMsoNormal><b><span =
style=3D'font-size:10.0pt;font-family:SimSun'>=B7=A2=BC=FE=C8=CB<span =
lang=3DEN-US>:</span></span></b><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:SimSun'> spring =
[mailto:spring-bounces@ietf.org] </span><b><span =
style=3D'font-size:10.0pt;font-family:SimSun'>=B4=FA=B1=ED =
</span></b><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:SimSun'>James =
Guichard<br></span><b><span =
style=3D'font-size:10.0pt;font-family:SimSun'>=B7=A2=CB=CD=CA=B1=BC=E4<sp=
an lang=3DEN-US>:</span></span></b><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:SimSun'> 2020</span><span =
style=3D'font-size:10.0pt;font-family:SimSun'>=C4=EA<span =
lang=3DEN-US>7</span>=D4=C2<span lang=3DEN-US>15</span>=C8=D5<span =
lang=3DEN-US> 19:17<br></span><b>=CA=D5=BC=FE=C8=CB<span =
lang=3DEN-US>:</span></b><span lang=3DEN-US> =
spring@ietf.org<br></span><b>=B3=AD=CB=CD<span =
lang=3DEN-US>:</span></b><span lang=3DEN-US> =
spring-chairs@ietf.org<br></span><b>=D6=F7=CC=E2<span =
lang=3DEN-US>:</span></b><span lang=3DEN-US> [spring] WG Adoption Call =
for =
draft-dong-spring-sr-for-enhanced-vpn<o:p></o:p></span></span></p></div><=
/div><p class=3DMsoNormal><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US>Dear WG:<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US>This email begins a 2 week WG adoption call for <a =
href=3D"https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhance=
d-vpn/">https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhance=
d-vpn/</a> ending Wednesday 29<sup>th</sup> July 2020. =
<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US>Please speak up if you support or oppose adopting this =
document into the WG. Please also provide comments/reasons for that =
support (or lack thereof). Silence will not be considered =
consent.<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
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lang=3DEN-US><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
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class=3DMsoNormal><span lang=3DEN-US><o:p>&nbsp;</o:p></span></p><p =
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Date: Wed, 15 Jul 2020 21:45:14 +0800
From: "li_zhenqiang@hotmail.com" <li_zhenqiang@hotmail.com>
To: "James Guichard" <james.n.guichard@futurewei.com>,  "spring@ietf.org" <spring@ietf.org>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/gmkqxtV8K4kk28FwJhg9RcnMYrU>
Subject: Re: [spring] WG Adoption Call for draft-raza-spring-sr-policy-yang
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<html><head>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dutf-8"><s=
tyle>body { line-height: 1.5; }blockquote { margin-top: 0px; margin-bottom:=
 0px; margin-left: 0.5em; }p { margin-top: 0px; margin-bottom: 0px; }div.Fo=
xDiv20200715214419077642 { }body { font-size: 10.5pt; font-family: =E5=BE=
=AE=E8=BD=AF=E9=9B=85=E9=BB=91; color: rgb(0, 0, 0); line-height: 1.5; }</s=
tyle></head><body>=0A=
<!--[if gte mso 9]><xml>=0A=
<o:shapedefaults v:ext=3D"edit" spidmax=3D"1026" ></o:shapedefaults>=0A=
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<o:idmap v:ext=3D"edit" data=3D"1" ></o:idmap>=0A=
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<div><span></span><div style=3D"font-family: =E5=BE=AE=E8=BD=AF=E9=9B=85=E9=
=BB=91, Tahoma;">I support the adoption since this doc is an integral membe=
r of the SR&nbsp;<span style=3D"font-size: 10.5pt; line-height: 1.5; backgr=
ound-color: transparent;">standard&nbsp;</span><span style=3D"font-size: 10=
.5pt; line-height: 1.5; background-color: transparent;">family.</span></div=
><div style=3D"font-family: =E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91, Tahoma;">=
<br></div><div style=3D"font-family: =E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91, =
Tahoma;">Best Regards,</div><div style=3D"font-family: =E5=BE=AE=E8=BD=AF=
=E9=9B=85=E9=BB=91, Tahoma;">Zhenqiang Li</div></div><hr style=3D"width: 21=
0px; height: 1px;" color=3D"#b5c4df" size=3D"1" align=3D"left">=0A=
<div><span><div style=3D"MARGIN: 10px; FONT-FAMILY: verdana; FONT-SIZE: 10p=
t"><div>li_zhenqiang@hotmail.com</div></div></span></div>=0A=
<blockquote style=3D"margin-Top: 0px; margin-Bottom: 0px; margin-Left: 0.5e=
m"><div>&nbsp;</div><div style=3D"border:none;border-top:solid #B5C4DF 1.0p=
t;padding:3.0pt 0cm 0cm 0cm"><div style=3D"PADDING-RIGHT: 8px; PADDING-LEFT=
: 8px; FONT-SIZE: 12px;FONT-FAMILY:tahoma;COLOR:#000000; BACKGROUND: #efefe=
f; PADDING-BOTTOM: 8px; PADDING-TOP: 8px"><div><b>From:</b>&nbsp;<a href=3D=
"mailto:james.n.guichard@futurewei.com" style=3D"color: rgb(5, 99, 193); te=
xt-decoration: underline;">James Guichard</a></div><div><b>Date:</b>&nbsp;2=
020-07-13&nbsp;23:37</div><div><b>To:</b>&nbsp;<a href=3D"mailto:spring@iet=
f.org" style=3D"color: rgb(5, 99, 193); text-decoration: underline;">spring=
@ietf.org</a></div><div><b>CC:</b>&nbsp;<a href=3D"mailto:spring-chairs@iet=
f.org" style=3D"color: rgb(5, 99, 193); text-decoration: underline;">spring=
-chairs@ietf.org</a></div><div><b>Subject:</b>&nbsp;[spring] WG Adoption Ca=
ll for draft-raza-spring-sr-policy-yang</div></div></div><div><div class=3D=
"FoxDiv20200715214419077642">=0A=
<!--[if gte mso 9]><xml>=0A=
<o:shapedefaults v:ext=3D"edit" spidmax=3D"1026" ></o:shapedefaults>=0A=
</xml><![endif]--><!--[if gte mso 9]><xml>=0A=
<o:shapelayout v:ext=3D"edit">=0A=
<o:idmap v:ext=3D"edit" data=3D"1" ></o:idmap>=0A=
</o:shapelayout></xml><![endif]-->=0A=
<div class=3D"WordSection1" style=3D"page: WordSection1;">=0A=
<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;">Dear WG:<o:p></o:p></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;"><o:p>&nbsp;</o:p></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;">This email begins a 2 week WG adoption c=
all for <a href=3D"https://datatracker.ietf.org/doc/draft-raza-spring-sr-po=
licy-yang/" style=3D"color: rgb(5, 99, 193); text-decoration: underline;">=
=0A=
https://datatracker.ietf.org/doc/draft-raza-spring-sr-policy-yang/</a> endi=
ng Monday 27<sup>th</sup> July 2020.=0A=
<o:p></o:p></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;"><o:p>&nbsp;</o:p></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;">Please speak up if you support or oppose=
 adopting this document into the WG. Please also provide comments/reasons f=
or that support (or lack thereof). Silence will not be considered consent.<=
o:p></o:p></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;"><o:p>&nbsp;</o:p></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;">Thanks!<o:p></o:p></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;"><o:p>&nbsp;</o:p></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;">Jim, Joel &amp; Bruno<o:p></o:p></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;"><o:p>&nbsp;</o:p></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;"><o:p>&nbsp;</o:p></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; =
font-family: Calibri, sans-serif;"><o:p>&nbsp;</o:p></p>=0A=
</div>=0A=
</div></div></blockquote>=0A=
</body></html>=

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From: "Shah, Himanshu" <hshah@ciena.com>
To: "Kamran Raza (skraza)" <skraza=40cisco.com@dmarc.ietf.org>, James Guichard <james.n.guichard@futurewei.com>, "spring@ietf.org" <spring@ietf.org>
CC: "spring-chairs@ietf.org" <spring-chairs@ietf.org>
Thread-Topic: [**EXTERNAL**] Re: [spring] WG Adoption Call for draft-raza-spring-sr-policy-yang
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/fQ7OyGwSDdF51Na8o9tAkJju7Ow>
Subject: Re: [spring] [**EXTERNAL**] Re: WG Adoption Call for draft-raza-spring-sr-policy-yang
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To: "li_zhenqiang@hotmail.com" <li_zhenqiang@hotmail.com>, James Guichard <james.n.guichard@futurewei.com>, "spring@ietf.org" <spring@ietf.org>
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From: "Jaganbabu Rajamanickam (jrajaman)" <jrajaman@cisco.com>
To: James Guichard <james.n.guichard@futurewei.com>, "spring@ietf.org" <spring@ietf.org>
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From: Linda Dunbar <linda.dunbar@futurewei.com>
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From: "Xiejingrong (Jingrong)" <xiejingrong@huawei.com>
To: James Guichard <james.n.guichard@futurewei.com>, "spring@ietf.org" <spring@ietf.org>
CC: "spring-chairs@ietf.org" <spring-chairs@ietf.org>
Thread-Topic: WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn
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Date: Wed, 15 Jul 2020 15:03:01 +0000
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Very useful use case for Segment routing technology, and very well written =
document.
I do support the WG adoption of this draft.

Thanks
Jingrong Xie

From: spring [mailto:spring-bounces@ietf.org] On Behalf Of James Guichard
Sent: Wednesday, July 15, 2020 7:17 PM
To: spring@ietf.org
Cc: spring-chairs@ietf.org
Subject: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vp=
n

Dear WG:

This email begins a 2 week WG adoption call for https://datatracker.ietf.or=
g/doc/draft-dong-spring-sr-for-enhanced-vpn/ ending Wednesday 29th July 202=
0.

Please speak up if you support or oppose adopting this document into the WG=
. Please also provide comments/reasons for that support (or lack thereof). =
Silence will not be considered consent.

Thanks!

Jim, Joel & Bruno




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<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">Very useful use case for Segment routing technology, and very wel=
l written document.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">I do support the WG adoption of this draft.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">Thanks<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">Jingrong Xie<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<div>
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0cm 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US">From:</span></b><span lang=
=3D"EN-US"> spring [mailto:spring-bounces@ietf.org]
<b>On Behalf Of </b>James Guichard<br>
<b>Sent:</b> Wednesday, July 15, 2020 7:17 PM<br>
<b>To:</b> spring@ietf.org<br>
<b>Cc:</b> spring-chairs@ietf.org<br>
<b>Subject:</b> [spring] WG Adoption Call for draft-dong-spring-sr-for-enha=
nced-vpn<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Dear WG:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">This email begins a 2 week WG a=
doption call for
<a href=3D"https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanc=
ed-vpn/">
https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/</a>=
 ending Wednesday 29<sup>th</sup> July 2020.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Please speak up if you support =
or oppose adopting this document into the WG. Please also provide comments/=
reasons for that support (or lack thereof). Silence will not be considered =
consent.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Thanks!<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Jim, Joel &amp; Bruno<o:p></o:p=
></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
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From: "Xiejingrong (Jingrong)" <xiejingrong@huawei.com>
To: James Guichard <james.n.guichard@futurewei.com>, "spring@ietf.org" <spring@ietf.org>
CC: "spring-chairs@ietf.org" <spring-chairs@ietf.org>
Thread-Topic: WG Adoption Call for draft-raza-spring-srv6-yang
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Basic building block of SRv6 technology for inter-op between routers and NM=
S.
I do support the adoption.

Thanks
Jingrong Xie

From: spring [mailto:spring-bounces@ietf.org] On Behalf Of James Guichard
Sent: Tuesday, July 14, 2020 5:52 AM
To: spring@ietf.org
Cc: spring-chairs@ietf.org
Subject: [spring] WG Adoption Call for draft-raza-spring-srv6-yang

Dear WG:

This email begins a 2 week WG adoption call for https://datatracker.ietf.or=
g/doc/draft-raza-spring-srv6-yang/ ending Monday 27th July 2020.

Please speak up if you support or oppose adopting this document into the WG=
. Please also provide comments/reasons for that support (or lack thereof). =
Silence will not be considered consent.

Thanks!

Jim, Joel & Bruno






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<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">Basic building block of SRv6 technology for inter-op between rout=
ers and NMS.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">I do support the adoption.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">Thanks<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">Jingrong Xie<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US">From:</span></b><span lang=
=3D"EN-US"> spring [mailto:spring-bounces@ietf.org]
<b>On Behalf Of </b>James Guichard<br>
<b>Sent:</b> Tuesday, July 14, 2020 5:52 AM<br>
<b>To:</b> spring@ietf.org<br>
<b>Cc:</b> spring-chairs@ietf.org<br>
<b>Subject:</b> [spring] WG Adoption Call for draft-raza-spring-srv6-yang<o=
:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Dear WG:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">This email begins a 2 week WG a=
doption call for
<a href=3D"https://datatracker.ietf.org/doc/draft-raza-spring-srv6-yang/">h=
ttps://datatracker.ietf.org/doc/draft-raza-spring-srv6-yang/</a> ending Mon=
day 27<sup>th</sup> July 2020.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Please speak up if you support =
or oppose adopting this document into the WG. Please also provide comments/=
reasons for that support (or lack thereof). Silence will not be considered =
consent.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Thanks!<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Jim, Joel &amp; Bruno<o:p></o:p=
></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><i><span lang=3D"EN-US" style=3D"font-size:12.0pt;fo=
nt-family:&quot;Times New Roman&quot;,serif"><o:p>&nbsp;</o:p></span></i></=
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From: "Xiejingrong (Jingrong)" <xiejingrong@huawei.com>
To: James Guichard <james.n.guichard@futurewei.com>, "spring@ietf.org" <spring@ietf.org>
CC: "spring-chairs@ietf.org" <spring-chairs@ietf.org>
Thread-Topic: [spring] WG Adoption Call for draft-raza-spring-sr-policy-yang
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Basic building block of SR technology for inter-op between routers and NMS.
I do support the adoption.

Thanks
Jingrong Xie

From: spring [mailto:spring-bounces@ietf.org] On Behalf Of James Guichard
Sent: Monday, July 13, 2020 11:38 PM
To: spring@ietf.org
Cc: spring-chairs@ietf.org
Subject: [spring] WG Adoption Call for draft-raza-spring-sr-policy-yang

Dear WG:

This email begins a 2 week WG adoption call for https://datatracker.ietf.or=
g/doc/draft-raza-spring-sr-policy-yang/ ending Monday 27th July 2020.

Please speak up if you support or oppose adopting this document into the WG=
. Please also provide comments/reasons for that support (or lack thereof). =
Silence will not be considered consent.

Thanks!

Jim, Joel & Bruno




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<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">Basic building block of SR technology for inter-op between router=
s and NMS.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">I do support the adoption.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">Thanks<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">Jingrong Xie<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
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0cm 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US">From:</span></b><span lang=
=3D"EN-US"> spring [mailto:spring-bounces@ietf.org]
<b>On Behalf Of </b>James Guichard<br>
<b>Sent:</b> Monday, July 13, 2020 11:38 PM<br>
<b>To:</b> spring@ietf.org<br>
<b>Cc:</b> spring-chairs@ietf.org<br>
<b>Subject:</b> [spring] WG Adoption Call for draft-raza-spring-sr-policy-y=
ang<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Dear WG:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">This email begins a 2 week WG a=
doption call for
<a href=3D"https://datatracker.ietf.org/doc/draft-raza-spring-sr-policy-yan=
g/">https://datatracker.ietf.org/doc/draft-raza-spring-sr-policy-yang/</a> =
ending Monday 27<sup>th</sup> July 2020.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Please speak up if you support =
or oppose adopting this document into the WG. Please also provide comments/=
reasons for that support (or lack thereof). Silence will not be considered =
consent.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Thanks!<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Jim, Joel &amp; Bruno<o:p></o:p=
></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
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In-Reply-To: <C7C2E1C43D652C4E9E49FE7517C236CB02AECDA2@dggeml529-mbx.china.huawei.com>
From: Gyan Mishra <hayabusagsm@gmail.com>
Date: Wed, 15 Jul 2020 11:32:35 -0400
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To: "Chengli (Cheng Li)" <c.l@huawei.com>
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Subject: Re: [spring] WG Adoption Call for draft-raza-spring-srv6-yang
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I support critical WG adoption of Yang models for SRv6.

Gyan

On Tue, Jul 14, 2020 at 10:06 PM Chengli (Cheng Li) <c.l@huawei.com> wrote:

> Hi SPRING,
>
>
>
> Yes I support the document.
>
> YANG model is an important work for SRv6, and the YANG model has reached
> the consensus among vendors and operators, so I support the adoption.
>
>
>
> Respect,
>
> C.L
>
>
>
>
>
> *From:* spring [mailto:spring-bounces@ietf.org] *On Behalf Of *James
> Guichard
> *Sent:* Tuesday, July 14, 2020 5:52 AM
> *To:* spring@ietf.org
> *Cc:* spring-chairs@ietf.org
> *Subject:* [spring] WG Adoption Call for draft-raza-spring-srv6-yang
>
>
>
> Dear WG:
>
>
>
> This email begins a 2 week WG adoption call for
> https://datatracker.ietf.org/doc/draft-raza-spring-srv6-yang/ ending
> Monday 27th July 2020.
>
>
>
> Please speak up if you support or oppose adopting this document into the
> WG. Please also provide comments/reasons for that support (or lack
> thereof). Silence will not be considered consent.
>
>
>
> Thanks!
>
>
>
> Jim, Joel & Bruno
>
>
>
>
>
>
>
>
>
>
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
>
-- 

<http://www.verizon.com/>

*Gyan Mishra*

*Network Solutions A**rchitect *



*M 301 502-134713101 Columbia Pike *Silver Spring, MD

--000000000000b79a9105aa7ca2e2
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<div><br></div><div dir=3D"auto">I support critical WG adoption of Yang mod=
els for SRv6.</div><div dir=3D"auto"><br></div><div dir=3D"auto">Gyan</div>=
<div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">O=
n Tue, Jul 14, 2020 at 10:06 PM Chengli (Cheng Li) &lt;<a href=3D"mailto:c.=
l@huawei.com">c.l@huawei.com</a>&gt; wrote:<br></div><blockquote class=3D"g=
mail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-l=
eft:1ex">





<div lang=3D"EN-US" link=3D"#0563C1" vlink=3D"#954F72">
<div>
<p class=3D"MsoNormal"><span style=3D"color:#1f497d">Hi SPRING,<u></u><u></=
u></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1f497d"><u></u>=C2=A0<u></u></=
span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1f497d">Yes I support the docu=
ment. <u></u>
<u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1f497d">YANG model is an impor=
tant work for SRv6, and the YANG model has reached the consensus among vend=
ors and operators, so I support the adoption.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1f497d"><u></u>=C2=A0<u></u></=
span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1f497d">Respect,<u></u><u></u>=
</span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1f497d">C.L<u></u><u></u></spa=
n></p>
<p class=3D"MsoNormal"><span style=3D"color:#1f497d"><u></u>=C2=A0<u></u></=
span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1f497d"><u></u>=C2=A0<u></u></=
span></p>
<div>
<div style=3D"border:none;border-top:solid #e1e1e1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b>From:</b> spring [mailto:<a href=3D"mailto:spring=
-bounces@ietf.org" target=3D"_blank">spring-bounces@ietf.org</a>] <b>On Beh=
alf Of
</b>James Guichard<br>
<b>Sent:</b> Tuesday, July 14, 2020 5:52 AM<br>
<b>To:</b> <a href=3D"mailto:spring@ietf.org" target=3D"_blank">spring@ietf=
.org</a><br>
<b>Cc:</b> <a href=3D"mailto:spring-chairs@ietf.org" target=3D"_blank">spri=
ng-chairs@ietf.org</a><br>
<b>Subject:</b> [spring] WG Adoption Call for draft-raza-spring-srv6-yang<u=
></u><u></u></p>
</div>
</div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Dear WG:<u></u><u></u></span></=
p></div></div><div lang=3D"EN-US" link=3D"#0563C1" vlink=3D"#954F72"><div>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">=C2=A0<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">This email begins a 2 week WG a=
doption call for
<a href=3D"https://datatracker.ietf.org/doc/draft-raza-spring-srv6-yang/" t=
arget=3D"_blank">https://datatracker.ietf.org/doc/draft-raza-spring-srv6-ya=
ng/</a> ending Monday 27<sup>th</sup> July 2020.
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">=C2=A0<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Please speak up if you support =
or oppose adopting this document into the WG. Please also provide comments/=
reasons for that support (or lack thereof). Silence will not be considered =
consent.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">=C2=A0<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Thanks!<u></u><u></u></span></p=
>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">=C2=A0<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Jim, Joel &amp; Bruno<u></u><u>=
</u></span></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><i><span style=3D"font-size:12.0pt;font-family:&quot=
;Times New Roman&quot;,serif"><u></u>=C2=A0<u></u></span></i></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
</div>

_______________________________________________<br>
spring mailing list<br>
<a href=3D"mailto:spring@ietf.org" target=3D"_blank">spring@ietf.org</a><br=
>
<a href=3D"https://www.ietf.org/mailman/listinfo/spring" rel=3D"noreferrer"=
 target=3D"_blank">https://www.ietf.org/mailman/listinfo/spring</a><br>
</blockquote></div></div>-- <br><div dir=3D"ltr" class=3D"gmail_signature" =
data-smartmail=3D"gmail_signature"><div dir=3D"ltr"><div dir=3D"ltr"><div d=
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color:black"><i><font face=3D"georgia, serif">M 301 502-1347<br>13101 Colum=
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Subject: Re: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn
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Yes/support

Regards,
Jeff

> On Jul 15, 2020, at 04:17, James Guichard <james.n.guichard@futurewei.com>=
 wrote:
>=20
> =EF=BB=BF
> Dear WG:
> =20
> This email begins a 2 week WG adoption call for https://datatracker.ietf.o=
rg/doc/draft-dong-spring-sr-for-enhanced-vpn/ ending Wednesday 29th July 202=
0.
> =20
> Please speak up if you support or oppose adopting this document into the W=
G. Please also provide comments/reasons for that support (or lack thereof). S=
ilence will not be considered consent.
> =20
> Thanks!
> =20
> Jim, Joel & Bruno
> =20
> =20
> =20
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring

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<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charset=3D=
utf-8"></head><body dir=3D"auto">Yes/support<br><br><div dir=3D"ltr">Regards=
,<div>Jeff</div></div><div dir=3D"ltr"><br><blockquote type=3D"cite">On Jul 1=
5, 2020, at 04:17, James Guichard &lt;james.n.guichard@futurewei.com&gt; wro=
te:<br><br></blockquote></div><blockquote type=3D"cite"><div dir=3D"ltr">=EF=
=BB=BF

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<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span style=3D"mso-fareast-language:ZH-CN">Dear WG:<o=
:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-language:ZH-CN"><o:p>&nbsp=
;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-language:ZH-CN">This email=
 begins a 2 week WG adoption call for
<a href=3D"https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhance=
d-vpn/">
https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/</a> e=
nding Wednesday 29<sup>th</sup> July 2020.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-language:ZH-CN"><o:p>&nbsp=
;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-language:ZH-CN">Please spe=
ak up if you support or oppose adopting this document into the WG. Please al=
so provide comments/reasons for that support (or lack thereof). Silence will=
 not be considered consent.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-language:ZH-CN"><o:p>&nbsp=
;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-language:ZH-CN">Thanks!<o:=
p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-language:ZH-CN"><o:p>&nbsp=
;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-language:ZH-CN">Jim, Joel &=
amp; Bruno<o:p></o:p></span></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>


<span>_______________________________________________</span><br><span>spring=
 mailing list</span><br><span>spring@ietf.org</span><br><span>https://www.ie=
tf.org/mailman/listinfo/spring</span><br></div></blockquote></body></html>=

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To: "Kamran Raza (skraza)" <skraza@cisco.com>, "Robert Sawaya (rsawaya)" <rsawaya@cisco.com>, "zhuangshunwa@huawei.com" <zhuangshunwa@huawei.com>, "daniel.voyer@bell.ca" <daniel.voyer@bell.ca>, "satoru.matsushima@g.softbank.co.jp" <satoru.matsushima@g.softbank.co.jp>, "vbeeram@juniper.net" <vbeeram@juniper.net>, "spring-bounces@ietf.org" <spring-bounces@ietf.org>, "spring@ietf.org" <spring@ietf.org>, "spring-chairs@ietf.org" <spring-chairs@ietf.org>
Thread-Topic: [spring] WG Adoption Call for draft-raza-spring-sr-policy-yang
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Subject: Re: [spring] WG Adoption Call for draft-raza-spring-sr-policy-yang
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From: Gyan Mishra <hayabusagsm@gmail.com>
Date: Wed, 15 Jul 2020 13:11:44 -0400
Message-ID: <CABNhwV2jSoMyHrNgEPdFFZuPjDYrkWamj++K3TWqoVgUCkSowQ@mail.gmail.com>
To: Jeff Tantsura <jefftant.ietf@gmail.com>
Cc: James Guichard <james.n.guichard@futurewei.com>,  "spring-chairs@ietf.org" <spring-chairs@ietf.org>, "spring@ietf.org" <spring@ietf.org>
Content-Type: multipart/alternative; boundary="00000000000054f29405aa7e057e"
Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/XP14Ufcdf8YWfsGTtG69qPiE4c0>
Subject: Re: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn
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I support WG adoption and agree it=E2=80=99s a very useful use case of SR
technology.

I really like the concept that it  utilizes the TEAS context of network
slicing construct of virtualization of physical PE / P core infrastructure,
containerization with this new enhancement VPN framework for critical 5G
RAN or other service chains of critical VPN services that require more then
just BAU QOS for guaranteed IP SLA delivery.

Thanks

Gya

On Wed, Jul 15, 2020 at 12:31 PM Jeff Tantsura <jefftant.ietf@gmail.com>
wrote:

> Yes/support
>
> Regards,
> Jeff
>
> On Jul 15, 2020, at 04:17, James Guichard <james.n.guichard@futurewei.com=
>
> wrote:
>
> =EF=BB=BF
>
> Dear WG:
>
>
>
> This email begins a 2 week WG adoption call for
> https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/
> ending Wednesday 29th July 2020.
>
>
>
> Please speak up if you support or oppose adopting this document into the
> WG. Please also provide comments/reasons for that support (or lack
> thereof). Silence will not be considered consent.
>
>
>
> Thanks!
>
>
>
> Jim, Joel & Bruno
>
>
>
>
>
>
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
>
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
>
--=20

<http://www.verizon.com/>

*Gyan Mishra*

*Network Solutions A**rchitect *



*M 301 502-134713101 Columbia Pike *Silver Spring, MD

--00000000000054f29405aa7e057e
Content-Type: text/html; charset="UTF-8"
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<div><br></div><div><div dir=3D"auto">I support WG adoption and agree it=E2=
=80=99s a very useful use case of SR technology. =C2=A0</div><div dir=3D"au=
to"><br></div><div dir=3D"auto">I really like the concept that it =C2=A0uti=
lizes the TEAS context of network slicing construct of virtualization of ph=
ysical PE / P core infrastructure, containerization with this new enhanceme=
nt VPN framework for critical 5G RAN or other service chains of critical VP=
N services that require more then just BAU QOS for guaranteed IP SLA delive=
ry.</div><div dir=3D"auto"><br></div><div dir=3D"auto">Thanks=C2=A0</div><d=
iv dir=3D"auto"><br></div><div dir=3D"auto">Gya=C2=A0</div><br><div class=
=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Wed, Jul 15, 2020=
 at 12:31 PM Jeff Tantsura &lt;<a href=3D"mailto:jefftant.ietf@gmail.com">j=
efftant.ietf@gmail.com</a>&gt; wrote:<br></div><blockquote class=3D"gmail_q=
uote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1e=
x"><div dir=3D"auto">Yes/support<br><br><div dir=3D"ltr">Regards,<div>Jeff<=
/div></div><div dir=3D"ltr"><br><blockquote type=3D"cite">On Jul 15, 2020, =
at 04:17, James Guichard &lt;<a href=3D"mailto:james.n.guichard@futurewei.c=
om" target=3D"_blank">james.n.guichard@futurewei.com</a>&gt; wrote:<br><br>=
</blockquote></div><blockquote type=3D"cite"><div dir=3D"ltr">=EF=BB=BF

</div></blockquote></div><div dir=3D"auto"><blockquote type=3D"cite"><div d=
ir=3D"ltr">




<div>
<p class=3D"MsoNormal"><span>Dear WG:<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span>This email begins a 2 week WG adoption call fo=
r
<a href=3D"https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanc=
ed-vpn/" target=3D"_blank">
https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/</a>=
 ending Wednesday 29<sup>th</sup> July 2020.
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span>Please speak up if you support or oppose adopt=
ing this document into the WG. Please also provide comments/reasons for tha=
t support (or lack thereof). Silence will not be considered consent.<u></u>=
<u></u></span></p>
<p class=3D"MsoNormal"><span><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span>Thanks!<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span>Jim, Joel &amp; Bruno<u></u><u></u></span></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>


<span>_______________________________________________</span><br><span>sprin=
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--00000000000054f29405aa7e057e--


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From: <bruno.decraene@orange.com>
To: "spring@ietf.org" <spring@ietf.org>, "Stone, Andrew (Nokia - CA/Ottawa)" <andrew.stone@nokia.com>
Thread-Topic: WG adoption call for draft-voyer-spring-sr-replication-segment
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Date: Wed, 15 Jul 2020 18:02:12 +0000
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Subject: Re: [spring] WG adoption call for draft-voyer-spring-sr-replication-segment
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Hi SPRING WG, authors, Andrew

We have good support to adopt this work.
We have a new WG document.

Authors, please republish the draft as draft-ietf-spring-sr-replication-seg=
ment

We run the adoption poll and the IPR on the -03 version. During the adoptio=
n call, a -04 version was published with a new contributor: Andrew Stone.

Andrew, could you please reply to the IPR poll?

Thanks,
Regards,
---Bruno, Jim, Joel

> -----Original Message-----
> From: spring [mailto:spring-bounces@ietf.org] On Behalf Of
> bruno.decraene@orange.com
> Sent: Monday, June 22, 2020 4:46 PM
> To: spring@ietf.org
> Subject: [spring] WG adoption call for draft-voyer-spring-sr-replication-
> segment
>=20
> Hi SPRING WG,
>=20
> Authors of draft-voyer-spring-sr-replication-segment [1] have asked for WG
> adoption.
>=20
> Please indicate your support, comments, or objection, for adopting this d=
raft
> as a working group item by July 6th 2020.
>=20
> Could those who are willing to work on this document, please notify the l=
ist.
> That gives us an indication of the energy level in the working group to w=
ork
> on this.
>=20
> As a reminder, the call for IPR has been done last November. [2]
>=20
> Thanks,
> Regards,
> Bruno, Jim, Joel
>=20
> [1] https://tools.ietf.org/html/draft-voyer-spring-sr-replication-segment
> [2] https://mailarchive.ietf.org/arch/msg/spring/tW-
> HHK7QzCw3ZBbFD0Dl7Eszd3k/
>=20
>=20
> __________________________________________________________
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>=20
> This message and its attachments may contain confidential or privileged
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> _______________________________________________
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From: <bruno.decraene@orange.com>
To: Rishabh Parekh <rishabhp@gmail.com>
CC: "draft-voyer-spring-sr-replication-segment@ietf.org" <draft-voyer-spring-sr-replication-segment@ietf.org>, "spring@ietf.org" <spring@ietf.org>
Thread-Topic: [spring] draft-voyer-spring-sr-replication-segment-03
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Rishabh,

Thanks for answers and new -04
Please see inline [Bruno]

Still speaking as an individual WG member.


> -----Original Message-----
> From: spring [mailto:spring-bounces@ietf.org] On Behalf Of Rishabh Parekh
> Sent: Thursday, July 9, 2020 1:28 AM
> To: DECRAENE Bruno TGI/OLN <bruno.decraene@orange.com>
> Cc: draft-voyer-spring-sr-replication-segment@ietf.org; spring@ietf.org
> Subject: Re: [spring] draft-voyer-spring-sr-replication-segment-03
>=20
> Bruno,
> Replies inline
>=20
> > ---
> >
> > "A SR Replication segment allows a packet to be replicated from a
> replication node to downstream nodes."
> >
> > May be adding "Each downstream node is reached by using a unicast
> segment or SR policy."
> >
> > (otherwise, the building of a multicast tree seem possibly within the s=
cope)
> >
> >
> If the downstream node is directly connected, we don't need a unicast
> segment or SR policy to reach that node, just an interface to that
> node is sufficient.

[Bruno] Agreed, in this specific case, you don't need the SID on the _packe=
t_.=20
- Still the PCE/configuration CLI/YANG need a way to identify this interfac=
e and it could be via a SID (e.g. both local adjacency SID and global nodes=
 SID (assuming PHP) seems to work, depending on needs)
- It seems to me that SR Policy draft is in the same situation, and they st=
ill call this an SR Policy.
But that's a detail.
=20
[...]
=20
> >
> > -------
> >
> > " o  When the Active Segment [RFC8402] is the Replication SID.  In this
> >
> >       case, the operation for a replicated copy is CONTINUE."
> >
> >
> >
> > "CONTINUE" would mean that the segment is not a local segment.
> >
> > So the document really needs to clarify whether the replication
> SID/segment is a local segment, or a global segment, or something new to =
be
> defined..
> >
> >
> The CONTINUE operation just captures the label swap for each
> replication, with just the Downstream Replication SID in the simplest
> case.

"CONTINUE: the active segment is not completed; hence, it remains
   active.  In SR-MPLS, the CONTINUE operation is implemented as a SWAP
   of the top label [RFC3031].  In SRv6, this is the plain IPv6
   forwarding action of a regular IPv6 packet according to its
   destination address."
https://tools.ietf.org/html/rfc8402#section-2

1) SR terminology
Given that I think that we agreed that the replication segment is a local s=
egment (i.e. local to one node), I don't see how it could continue once use=
d. As we used it on the single node which understand it, it needs to be ter=
minated (NEXT).

2) Data plane
2.a) SR-MPLS
I don't see a label swap. I see a pop of the BSID/replication SID and a pus=
h of the list of SID in the SR-policy. As described in  https://tools.ietf.=
org/html/draft-ietf-spring-segment-routing-policy-08#section-8.3
"Let us assume that headend H has a valid SR Policy P of Segment-List
   <S1, S2, S3> and BSID B.

   When H receives a packet K with label stack <B, L2, L3>, H pops B and
   pushes <S1, S2, S3> and forwards the resulting packet according to
   SID S1."

2.b) SRv6
Quoting RFC 8402 (above): "In SRv6, this is the plain IPv6
   forwarding action of a regular IPv6 packet according to its
   destination address"
I don't see how this can translate in a specific SR action (here "replicati=
on" on the replication node. ) But since there is no SRv6 specific text in =
the draft, it's hard to guess.


Note that my understanding seems to match your new text/illustration in app=
endix: there is no CONTINUE operation on a replication SID. Only NEXT opera=
tion:
" R2, as Leaf, performs NEXT operation, pops R-SID2 label and delivers the =
payload."
"R6, as Leaf, performs NEXT operation, pops R-SID1 label and delivers the p=
ayload."=20
"R7, as Leaf, performs NEXT operation, pops R-SID7 label and delivers the p=
ayload."

BTW, there may be two typos in the draft:
"R6, as Leaf, performs NEXT operation, pops R-SID1 label and delivers the p=
ayload."
:s/R-SID1/R-SID6

OLD:    Replication State:
                R2: <R-SID1->L12>"

NEW:    Replication State:
                R2: <R-SID2, L12>"
=20
Thanks,
Regards,
--Bruno

___________________________________________________________________________=
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This message and its attachments may contain confidential or privileged inf=
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they should not be distributed, used or copied without authorisation.
If you have received this email in error, please notify the sender and dele=
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modified, changed or falsified.
Thank you.


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From: "Stone, Andrew (Nokia - CA/Ottawa)" <andrew.stone@nokia.com>
To: "bruno.decraene@orange.com" <bruno.decraene@orange.com>, "draft-voyer-spring-sr-replication-segment@ietf.org" <draft-voyer-spring-sr-replication-segment@ietf.org>, spring <spring@ietf.org>
Thread-Topic: [spring] IPR Poll: draft-voyer-spring-sr-replication-segment
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Date: Wed, 15 Jul 2020 18:13:21 +0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/jfVHjfwl8ywKN6w-XAL1VLoBqYw>
Subject: Re: [spring] IPR Poll: draft-voyer-spring-sr-replication-segment
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From: stefano previdi <stefano@previdi.net>
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Date: Wed, 15 Jul 2020 20:14:15 +0200
Cc: "spring@ietf.org" <spring@ietf.org>, "spring-chairs@ietf.org" <spring-chairs@ietf.org>
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To: James Guichard <james.n.guichard@futurewei.com>
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Subject: Re: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn
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I support the adoption of this document.

Thanks.
s.


> On Jul 15, 2020, at 1:16 PM, James Guichard =
<james.n.guichard@futurewei.com> wrote:
>=20
> Dear WG:
> =20
> This email begins a 2 week WG adoption call for =
https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/ =
ending Wednesday 29th July 2020.
> =20
> Please speak up if you support or oppose adopting this document into =
the WG. Please also provide comments/reasons for that support (or lack =
thereof). Silence will not be considered consent.
> =20
> Thanks!
> =20
> Jim, Joel & Bruno
> =20
> =20
> =20
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring


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Thread-Topic: [spring] WG Adoption Call for draft-raza-spring-srv6-yang
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Subject: [spring] WG Adoption Call for draft-raza-spring-srv6-yang
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Hi,

Yes, I support the adoption of this document by the WG.

BR
Iftekhar

From: spring <spring-bounces@ietf.org> on behalf of James Guichard <james.n=
.guichard@futurewei.com>
Date: Monday, July 13, 2020 at 5:52 PM
To: "spring@ietf.org" <spring@ietf.org>
Cc: "spring-chairs@ietf.org" <spring-chairs@ietf.org>
Subject: [spring] WG Adoption Call for draft-raza-spring-srv6-yang

Dear WG:
This email begins a 2 week WG adoption call for https://datatracker.ietf.or=
g/doc/draft-raza-spring-srv6-yang/ ending Monday 27th July 2020.

Please speak up if you support or oppose adopting this document into the WG=
. Please also provide comments/reasons for that support (or lack thereof). =
Silence will not be considered consent.
Thanks!
Jim, Joel & Bruno

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<p class=3D"MsoNormal">Hi,<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Yes, I support the adoption of this document by the =
WG.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">BR<o:p></o:p></p>
<p class=3D"MsoNormal">Iftekhar<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">From: spring &lt;spring-bounces@ietf.org&gt; on beha=
lf of James Guichard &lt;james.n.guichard@futurewei.com&gt;<o:p></o:p></p>
<p class=3D"MsoNormal">Date: Monday, July 13, 2020 at 5:52 PM<o:p></o:p></p=
>
<p class=3D"MsoNormal">To: &quot;spring@ietf.org&quot; &lt;spring@ietf.org&=
gt;<o:p></o:p></p>
<p class=3D"MsoNormal">Cc: &quot;spring-chairs@ietf.org&quot; &lt;spring-ch=
airs@ietf.org&gt;<o:p></o:p></p>
<p class=3D"MsoNormal">Subject: [spring] WG Adoption Call for draft-raza-sp=
ring-srv6-yang<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Dear WG:<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p></o:p></p>
<p class=3D"MsoNormal">This email begins a 2 week WG adoption call for http=
s://datatracker.ietf.org/doc/draft-raza-spring-srv6-yang/ ending Monday 27t=
h July 2020.
<o:p></o:p></p>
<p class=3D"MsoNormal">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal">Please speak up if you support or oppose adopting th=
is document into the WG. Please also provide comments/reasons for that supp=
ort (or lack thereof). Silence will not be considered consent.<o:p></o:p></=
p>
<p class=3D"MsoNormal"><o:p></o:p></p>
<p class=3D"MsoNormal">Thanks!<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p></o:p></p>
<p class=3D"MsoNormal">Jim, Joel &amp; Bruno<o:p></o:p></p>
</div>
</body>
</html>

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From: Rishabh Parekh <rishabhp@gmail.com>
Date: Wed, 15 Jul 2020 13:46:17 -0700
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To: "Xiejingrong (Jingrong)" <xiejingrong@huawei.com>
Cc: Jeff Tantsura <jefftant.ietf@gmail.com>, Dhruv Dhody <dhruv.ietf@gmail.com>, "bruno.decraene@orange.com" <bruno.decraene@orange.com>, "spring@ietf.org" <spring@ietf.org>,  Alexander Vainshtein <Alexander.Vainshtein@rbbn.com>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/4P1tVEo8tgEMSuV8oWSzqQFHbbg>
Subject: Re: [spring] Understanding the replication draft
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Jingrong,

Replies inline.

1)       About the distinction of Replication-ID and Replication-SID, and
> their usage.
>
> If there is an SID block specially reserved for the P2MP Transport on eac=
h
> of the Replication Node, and such SID block (on each Replication Node) is
> advertised through west-east protocol like IGP/BGP,
>
> and then the north-south controller (like PCE) can use the
> =E2=80=9CReplication-ID=E2=80=9D and =E2=80=9CNode-ID=E2=80=9D only, but =
don=E2=80=99t need to use
> =E2=80=9CReplication-SID=E2=80=9D when populating the =E2=80=9CTree=E2=80=
=9D information to each
> =E2=80=9CReplication Node=E2=80=9D ?
>
> In that way, the Controller doesn=E2=80=99t need to allocate (and manage)=
 each of
> the Replication-SID (Say 1000 Replication-SID)  for  each Replication Nod=
e
> (Say 100 nodes).
>
>
As we try to make the distinction clear in the draft, Replication segment
is a logical segment that needs to be explicitly instantiated on the node
either by PCE or by some other mechanism (maybe local config?). The
Replication SID has to be assigned when the Replication segment (with a
Replication-ID) is created on the node. Note Replication Segments can be
created and deleted over time. and So, there is no pre-allocated block of
Replication SIDs that can be announced in IGP or BGP. Effectively, the
entity managing Replication segments has to manage the Replication SIDs.


> 2)       About the Replication Segment illustration.
>
> The rev-04 add a section =E2=80=9CIllustration of a Replication Segment=
=E2=80=9D in
> appendix, it is very clear and useful.
>
> To me, the =E2=80=9CReplication State=E2=80=9D is more like a =E2=80=9Cfo=
rwarding state=E2=80=9D, and I
> think it will be helpful to understand the whole solution if:
>
> a) there is a description/Illustration about the building procedure of th=
e
> =E2=80=9Cforwarding state=E2=80=9D ---- What=E2=80=99s the information ea=
ch Replication Node
> receives from the controller, and how each node builds its own forwarding
> state.
>
> b) there is a description/Illustration about the processing of multicast
> packet on the whole path of the P2MP tree.
>
>
Illustrations of how packets and handed on a P2MP tree built by stitching
Replication segments have been added in latest revision 02 of PIM WG draft:
https://datatracker.ietf.org/doc/draft-voyer-pim-sr-p2mp-policy/
We have drafts on PCEP and BGP protocol extensions to instantiate
Replication segments.


>
>
> 3)       About the applicability of SR-MPLS and SRv6.
>
> The rev-04 says =E2=80=9CReplication segments apply equally to both SR-MP=
LS and
> SRv6 instantiations of Segment Routing.=E2=80=9D.
>
> I am not sure if this document will cover SRv6 as well, but if it does,
> then I would like to see the same level of consideration as SR-MPLS.
>
>
>

 Yes, we will have the same level of details for SRv6 Replication too.

-Rishabh

--000000000000adeba205aa810490
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div dir=3D"ltr"><div>Jingrong,</div><div><br></div><div>R=
eplies inline.<br></div></div><br><div class=3D"gmail_quote"><span style=3D=
"font-size:10.5pt;font-family:&quot;Calibri&quot;,sans-serif;color:rgb(31,7=
3,125)" lang=3D"EN-US"></span><blockquote class=3D"gmail_quote" style=3D"ma=
rgin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:=
1ex"><div lang=3D"ZH-CN"><div>
<p style=3D"margin-left:18pt">
<u></u><span style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,sans=
-serif;color:rgb(31,73,125)" lang=3D"EN-US"><span>1)<span style=3D"font:7pt=
 &quot;Times New Roman&quot;">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0
</span></span></span><u></u><span style=3D"font-size:10.5pt;font-family:&qu=
ot;Calibri&quot;,sans-serif;color:rgb(31,73,125)" lang=3D"EN-US">About the =
distinction of Replication-ID and Replication-SID, and their usage.<u></u><=
u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:rgb(31,73,125)" lang=3D"EN-US">If there is an =
SID block specially reserved for the P2MP Transport on each of the Replicat=
ion Node, and such SID block (on each Replication Node)
 is advertised through west-east protocol like IGP/BGP, <u></u><u></u></spa=
n></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:rgb(31,73,125)" lang=3D"EN-US">and then the no=
rth-south controller (like PCE) can use the =E2=80=9CReplication-ID=E2=80=
=9D and =E2=80=9CNode-ID=E2=80=9D only, but don=E2=80=99t need to use =E2=
=80=9CReplication-SID=E2=80=9D when populating
 the =E2=80=9CTree=E2=80=9D information to each =E2=80=9CReplication Node=
=E2=80=9D ?<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:rgb(31,73,125)" lang=3D"EN-US">In that way, th=
e Controller doesn=E2=80=99t need to allocate (and manage) each of the Repl=
ication-SID (Say 1000 Replication-SID)=C2=A0 for=C2=A0 each Replication Nod=
e
 (Say 100 nodes).<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:rgb(31,73,125)" lang=3D"EN-US"><u></u></span><=
/p></div></div></blockquote><div><br></div><div>As we try to make the disti=
nction clear in the draft, Replication segment is a logical segment that ne=
eds to be explicitly instantiated on the node either by PCE or by some othe=
r mechanism (maybe local config?). The Replication SID has to be assigned w=
hen the Replication segment (with a Replication-ID) is created on the node.=
 Note Replication Segments can be created and deleted over time. and So, th=
ere is no pre-allocated block of Replication SIDs that can be announced in =
IGP or BGP. Effectively, the entity managing Replication segments has to ma=
nage the Replication SIDs.<br></div><div>=C2=A0</div><blockquote class=3D"g=
mail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204=
,204,204);padding-left:1ex"><div lang=3D"ZH-CN"><div><span style=3D"font-si=
ze:10.5pt;font-family:&quot;Calibri&quot;,sans-serif;color:rgb(31,73,125)" =
lang=3D"EN-US"><span>2)<span style=3D"font:7pt &quot;Times New Roman&quot;"=
>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0
</span></span></span><span style=3D"font-size:10.5pt;font-family:&quot;Cali=
bri&quot;,sans-serif;color:rgb(31,73,125)" lang=3D"EN-US">About the Replica=
tion Segment illustration.</span>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:rgb(31,73,125)" lang=3D"EN-US">The rev-04 add =
a section =E2=80=9CIllustration of a Replication Segment=E2=80=9D in append=
ix, it is very clear and useful.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:rgb(31,73,125)" lang=3D"EN-US">To me, the =E2=
=80=9CReplication State=E2=80=9D is more like a =E2=80=9Cforwarding state=
=E2=80=9D, and I think it will be helpful to understand the whole solution =
if:<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:rgb(31,73,125)" lang=3D"EN-US">a) there is a d=
escription/Illustration about the building procedure of the =E2=80=9Cforwar=
ding state=E2=80=9D ---- What=E2=80=99s the information each Replication No=
de receives
 from the controller, and how each node builds its own forwarding state.<u>=
</u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:rgb(31,73,125)" lang=3D"EN-US">b) there is a d=
escription/Illustration about the processing of multicast packet on the who=
le path of the P2MP tree.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:rgb(31,73,125)" lang=3D"EN-US"><u></u></span><=
/p></div></div></blockquote><div><br></div><div>Illustrations of how packet=
s and handed on a P2MP tree built by stitching Replication segments have be=
en added in latest revision 02 of PIM WG draft: <a href=3D"https://datatrac=
ker.ietf.org/doc/draft-voyer-pim-sr-p2mp-policy/">https://datatracker.ietf.=
org/doc/draft-voyer-pim-sr-p2mp-policy/</a></div><div>We have drafts on PCE=
P and BGP protocol extensions to instantiate Replication segments.<br></div=
><div>=C2=A0</div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px=
 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div la=
ng=3D"ZH-CN"><div><p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;fo=
nt-family:&quot;Calibri&quot;,sans-serif;color:rgb(31,73,125)" lang=3D"EN-U=
S">=C2=A0<u></u></span></p>
<p style=3D"margin-left:18pt">
<u></u><span style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,sans=
-serif;color:rgb(31,73,125)" lang=3D"EN-US"><span>3)<span style=3D"font:7pt=
 &quot;Times New Roman&quot;">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0
</span></span></span><u></u><span style=3D"font-size:10.5pt;font-family:&qu=
ot;Calibri&quot;,sans-serif;color:rgb(31,73,125)" lang=3D"EN-US">About the =
applicability of SR-MPLS and SRv6.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:rgb(31,73,125)" lang=3D"EN-US">The rev-04 says=
 =E2=80=9CReplication segments apply equally to both SR-MPLS and SRv6 insta=
ntiations of Segment Routing.=E2=80=9D.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:rgb(31,73,125)" lang=3D"EN-US">I am not sure i=
f this document will cover SRv6 as well, but if it does, then I would like =
to see the same level of consideration as SR-MPLS.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:rgb(31,73,125)" lang=3D"EN-US"><u></u>=C2=A0</=
span></p></div></div></blockquote><div><br></div><div>=C2=A0Yes, we will ha=
ve the same level of details for SRv6 Replication too.</div><div><br></div>=
<div>-Rishabh<br></div></div></div>

--000000000000adeba205aa810490--


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From: Linda Dunbar <linda.dunbar@futurewei.com>
To: James Guichard <james.n.guichard@futurewei.com>, "spring@ietf.org" <spring@ietf.org>
CC: "spring-chairs@ietf.org" <spring-chairs@ietf.org>
Thread-Topic: WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/7eJ-f-OFx2ctysqwhcjq5tQOnSk>
Subject: Re: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn
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--_000_SN6PR13MB23348B1410C39D0AF058FBEF857E0SN6PR13MB2334namp_
Content-Type: text/plain; charset="us-ascii"
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I support the WG adoption of this draft.

I think it is a really good idea for each Virtual Network to have its own S=
IDs.
A couple questions to the authors:

Page 9: Figure 1: The Red network has same SID on A & B for the path betwee=
n them. But between B & E there are different SIDs. Is it intended?
What scenario requires same SID on both nodes?

Page 10: Section 4.3: the paragraph states that each node should advertise =
the identifiers of the Virtual networks it participates in: 1) does each Vi=
rtual Network has its own advertisement?  i.e. if a node supports 5 Virtual=
 Networks, the node sends out 5 independent advertisements?  2) The network=
 controller configures the SIDs for each node. Why not let the network cont=
roller manage the advertisement?

Cheers,
Linda

From: spring <spring-bounces@ietf.org> On Behalf Of James Guichard
Sent: Wednesday, July 15, 2020 6:17 AM
To: spring@ietf.org
Cc: spring-chairs@ietf.org
Subject: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vp=
n

Dear WG:

This email begins a 2 week WG adoption call for https://datatracker.ietf.or=
g/doc/draft-dong-spring-sr-for-enhanced-vpn/<https://nam11.safelinks.protec=
tion.outlook.com/?url=3Dhttps%3A%2F%2Fdatatracker.ietf.org%2Fdoc%2Fdraft-do=
ng-spring-sr-for-enhanced-vpn%2F&data=3D02%7C01%7Clinda.dunbar%40futurewei.=
com%7Cf03a8de844774eb62c1508d828b09948%7C0fee8ff2a3b240189c753a1d5591fedc%7=
C1%7C0%7C637304086252107481&sdata=3DG75TrLzE%2FhSgHuwP4cClUusCr%2BofY0C1Kq%=
2Fq9CBDOwE%3D&reserved=3D0> ending Wednesday 29th July 2020.

Please speak up if you support or oppose adopting this document into the WG=
. Please also provide comments/reasons for that support (or lack thereof). =
Silence will not be considered consent.

Thanks!

Jim, Joel & Bruno




--_000_SN6PR13MB23348B1410C39D0AF058FBEF857E0SN6PR13MB2334namp_
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<p class=3D"MsoNormal">I support the WG adoption of this draft. <o:p></o:p>=
</p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">I think it is a really good idea for each Virtual Ne=
twork to have its own SIDs.
<o:p></o:p></p>
<p class=3D"MsoNormal">A couple questions to the authors:<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Page 9: Figure 1: The Red network has same SID on A =
&amp; B for the path between them. But between B &amp; E there are differen=
t SIDs. Is it intended?<o:p></o:p></p>
<p class=3D"MsoNormal">What scenario requires same SID on both nodes? <o:p>=
</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Page 10: Section 4.3: the paragraph states that each=
 node should advertise the identifiers of the Virtual networks it participa=
tes in: 1) does each Virtual Network has its own advertisement?&nbsp; i.e. =
if a node supports 5 Virtual Networks,
 the node sends out 5 independent advertisements?&nbsp; 2) The network cont=
roller configures the SIDs for each node. Why not let the network controlle=
r manage the advertisement?
<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Cheers, <o:p></o:p></p>
<p class=3D"MsoNormal">Linda<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal"><b>From:</b> spring &lt;spring-bounces@ietf.org&gt; =
<b>On Behalf Of
</b>James Guichard<br>
<b>Sent:</b> Wednesday, July 15, 2020 6:17 AM<br>
<b>To:</b> spring@ietf.org<br>
<b>Cc:</b> spring-chairs@ietf.org<br>
<b>Subject:</b> [spring] WG Adoption Call for draft-dong-spring-sr-for-enha=
nced-vpn<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Dear WG:<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">This email begins a 2 week WG adoption call for <a h=
ref=3D"https://nam11.safelinks.protection.outlook.com/?url=3Dhttps%3A%2F%2F=
datatracker.ietf.org%2Fdoc%2Fdraft-dong-spring-sr-for-enhanced-vpn%2F&amp;d=
ata=3D02%7C01%7Clinda.dunbar%40futurewei.com%7Cf03a8de844774eb62c1508d828b0=
9948%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C0%7C637304086252107481&amp;sd=
ata=3DG75TrLzE%2FhSgHuwP4cClUusCr%2BofY0C1Kq%2Fq9CBDOwE%3D&amp;reserved=3D0=
">
https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/</a>=
 ending Wednesday 29<sup>th</sup> July 2020.
<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Please speak up if you support or oppose adopting th=
is document into the WG. Please also provide comments/reasons for that supp=
ort (or lack thereof). Silence will not be considered consent.<o:p></o:p></=
p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Thanks!<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Jim, Joel &amp; Bruno<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
</body>
</html>

--_000_SN6PR13MB23348B1410C39D0AF058FBEF857E0SN6PR13MB2334namp_--


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From: Yingzhen Qu <yingzhen.qu@futurewei.com>
To: "Kamran Raza (skraza)" <skraza=40cisco.com@dmarc.ietf.org>, James Guichard <james.n.guichard@futurewei.com>, "spring@ietf.org" <spring@ietf.org>
CC: "spring-chairs@ietf.org" <spring-chairs@ietf.org>
Thread-Topic: [spring] WG Adoption Call for draft-raza-spring-srv6-yang
Thread-Index: AQHWWnKOD8I/+CGtvUqGzfNV+x7ORKkIqm8A
Date: Wed, 15 Jul 2020 20:55:59 +0000
Message-ID: <C10D537A-7212-431B-A2C5-CCD56773F6E7@futurewei.com>
References: <B4A17767-E9EA-42E2-AE96-35225BC0E25E@cisco.com>
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From: Rishabh Parekh <rishabhp@gmail.com>
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Bruno,
Replies inline @ [RP]



> [Bruno] Agreed, in this specific case, you don't need the SID on the
> _packet_.
> - Still the PCE/configuration CLI/YANG need a way to identify this
> interface and it could be via a SID (e.g. both local adjacency SID and
> global nodes SID (assuming PHP) seems to work, depending on needs)
> - It seems to me that SR Policy draft is in the same situation, and they
> still call this an SR Policy.
> But that's a detail.
>
> [RP] We are on the same page. An explicit interface can be identified in
different ways.


> [...]
>
> > >
> > > -------
> > >
> > > " o  When the Active Segment [RFC8402] is the Replication SID.  In this
> > >
> > >       case, the operation for a replicated copy is CONTINUE."
> > >
> > >
> > >
> > > "CONTINUE" would mean that the segment is not a local segment.
> > >
> > > So the document really needs to clarify whether the replication
> > SID/segment is a local segment, or a global segment, or something new to
> be
> > defined..
> > >
> > >
> > The CONTINUE operation just captures the label swap for each
> > replication, with just the Downstream Replication SID in the simplest
> > case.
>
> "CONTINUE: the active segment is not completed; hence, it remains
>    active.  In SR-MPLS, the CONTINUE operation is implemented as a SWAP
>    of the top label [RFC3031].  In SRv6, this is the plain IPv6
>    forwarding action of a regular IPv6 packet according to its
>    destination address."
> https://tools.ietf.org/html/rfc8402#section-2
>
> 1) SR terminology
> Given that I think that we agreed that the replication segment is a local
> segment (i.e. local to one node), I don't see how it could continue once
> used. As we used it on the single node which understand it, it needs to be
> terminated (NEXT).
>
> 2) Data plane
> 2.a) SR-MPLS
> I don't see a label swap. I see a pop of the BSID/replication SID and a
> push of the list of SID in the SR-policy. As described in
> https://tools.ietf.org/html/draft-ietf-spring-segment-routing-policy-08#section-8.3
> "Let us assume that headend H has a valid SR Policy P of Segment-List
>    <S1, S2, S3> and BSID B.
>
>    When H receives a packet K with label stack <B, L2, L3>, H pops B and
>    pushes <S1, S2, S3> and forwards the resulting packet according to
>    SID S1."
>
> 2.b) SRv6
> Quoting RFC 8402 (above): "In SRv6, this is the plain IPv6
>    forwarding action of a regular IPv6 packet according to its
>    destination address"
> I don't see how this can translate in a specific SR action (here
> "replication" on the replication node. ) But since there is no SRv6
> specific text in the draft, it's hard to guess.
>

>
> Note that my understanding seems to match your new text/illustration in
> appendix: there is no CONTINUE operation on a replication SID. Only NEXT
> operation:
> " R2, as Leaf, performs NEXT operation, pops R-SID2 label and delivers the
> payload."
> "R6, as Leaf, performs NEXT operation, pops R-SID1 label and delivers the
> payload."
> "R7, as Leaf, performs NEXT operation, pops R-SID7 label and delivers the
> payload."
>
>
[RP] I see you point. We shall re-word the text around this area in a
future WG document (probably in rev 01).


> BTW, there may be two typos in the draft:
> "R6, as Leaf, performs NEXT operation, pops R-SID1 label and delivers the
> payload."
> :s/R-SID1/R-SID6
>
> OLD:    Replication State:
>                 R2: <R-SID1->L12>"
>
> NEW:    Replication State:
>                 R2: <R-SID2, L12>"
>
>
[RP] Thanks for catching these. We will fix them in rev 00 of WG document.


> Thanks,
> Regards,
> --Bruno
>
>
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--000000000000f1934305aa8146b8
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div dir=3D"ltr"><div>Bruno,</div><div>Replies inline @ [R=
P]<br></div></div><br><div class=3D"gmail_quote"><br><blockquote class=3D"g=
mail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204=
,204,204);padding-left:1ex">
<br>
[Bruno] Agreed, in this specific case, you don&#39;t need the SID on the _p=
acket_. <br>
- Still the PCE/configuration CLI/YANG need a way to identify this interfac=
e and it could be via a SID (e.g. both local adjacency SID and global nodes=
 SID (assuming PHP) seems to work, depending on needs)<br>
- It seems to me that SR Policy draft is in the same situation, and they st=
ill call this an SR Policy.<br>
But that&#39;s a detail.<br>
<br></blockquote><div>[RP] We are on the same page. An explicit interface c=
an be identified in different ways.<br></div><div>=C2=A0</div><blockquote c=
lass=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px soli=
d rgb(204,204,204);padding-left:1ex">
[...]<br>
<br>
&gt; &gt;<br>
&gt; &gt; -------<br>
&gt; &gt;<br>
&gt; &gt; &quot; o=C2=A0 When the Active Segment [RFC8402] is the Replicati=
on SID.=C2=A0 In this<br>
&gt; &gt;<br>
&gt; &gt;=C2=A0 =C2=A0 =C2=A0 =C2=A0case, the operation for a replicated co=
py is CONTINUE.&quot;<br>
&gt; &gt;<br>
&gt; &gt;<br>
&gt; &gt;<br>
&gt; &gt; &quot;CONTINUE&quot; would mean that the segment is not a local s=
egment.<br>
&gt; &gt;<br>
&gt; &gt; So the document really needs to clarify whether the replication<b=
r>
&gt; SID/segment is a local segment, or a global segment, or something new =
to be<br>
&gt; defined..<br>
&gt; &gt;<br>
&gt; &gt;<br>
&gt; The CONTINUE operation just captures the label swap for each<br>
&gt; replication, with just the Downstream Replication SID in the simplest<=
br>
&gt; case.<br>
<br>
&quot;CONTINUE: the active segment is not completed; hence, it remains<br>
=C2=A0 =C2=A0active.=C2=A0 In SR-MPLS, the CONTINUE operation is implemente=
d as a SWAP<br>
=C2=A0 =C2=A0of the top label [RFC3031].=C2=A0 In SRv6, this is the plain I=
Pv6<br>
=C2=A0 =C2=A0forwarding action of a regular IPv6 packet according to its<br=
>
=C2=A0 =C2=A0destination address.&quot;<br>
<a href=3D"https://tools.ietf.org/html/rfc8402#section-2" rel=3D"noreferrer=
" target=3D"_blank">https://tools.ietf.org/html/rfc8402#section-2</a><br>
<br>
1) SR terminology<br>
Given that I think that we agreed that the replication segment is a local s=
egment (i.e. local to one node), I don&#39;t see how it could continue once=
 used. As we used it on the single node which understand it, it needs to be=
 terminated (NEXT).<br>
<br>
2) Data plane<br>
2.a) SR-MPLS<br>
I don&#39;t see a label swap. I see a pop of the BSID/replication SID and a=
 push of the list of SID in the SR-policy. As described in=C2=A0 <a href=3D=
"https://tools.ietf.org/html/draft-ietf-spring-segment-routing-policy-08#se=
ction-8.3" rel=3D"noreferrer" target=3D"_blank">https://tools.ietf.org/html=
/draft-ietf-spring-segment-routing-policy-08#section-8.3</a><br>
&quot;Let us assume that headend H has a valid SR Policy P of Segment-List<=
br>
=C2=A0 =C2=A0&lt;S1, S2, S3&gt; and BSID B.<br>
<br>
=C2=A0 =C2=A0When H receives a packet K with label stack &lt;B, L2, L3&gt;,=
 H pops B and<br>
=C2=A0 =C2=A0pushes &lt;S1, S2, S3&gt; and forwards the resulting packet ac=
cording to<br>
=C2=A0 =C2=A0SID S1.&quot;<br>
<br>
2.b) SRv6<br>
Quoting RFC 8402 (above): &quot;In SRv6, this is the plain IPv6<br>
=C2=A0 =C2=A0forwarding action of a regular IPv6 packet according to its<br=
>
=C2=A0 =C2=A0destination address&quot;<br>
I don&#39;t see how this can translate in a specific SR action (here &quot;=
replication&quot; on the replication node. ) But since there is no SRv6 spe=
cific text in the draft, it&#39;s hard to guess.<br></blockquote><blockquot=
e class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px s=
olid rgb(204,204,204);padding-left:1ex">
<br>
<br>
Note that my understanding seems to match your new text/illustration in app=
endix: there is no CONTINUE operation on a replication SID. Only NEXT opera=
tion:<br>
&quot; R2, as Leaf, performs NEXT operation, pops R-SID2 label and delivers=
 the payload.&quot;<br>
&quot;R6, as Leaf, performs NEXT operation, pops R-SID1 label and delivers =
the payload.&quot; <br>
&quot;R7, as Leaf, performs NEXT operation, pops R-SID7 label and delivers =
the payload.&quot;<br>
<br></blockquote><div><br></div><div>
[RP] I see you point. We shall re-word the text around this area in a futur=
e WG document (probably in rev 01).<br></div><div>=C2=A0</div><blockquote c=
lass=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px soli=
d rgb(204,204,204);padding-left:1ex">
BTW, there may be two typos in the draft:<br>
&quot;R6, as Leaf, performs NEXT operation, pops R-SID1 label and delivers =
the payload.&quot;<br>
:s/R-SID1/R-SID6<br>
<br>
OLD:=C2=A0 =C2=A0 Replication State:<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 R2: &lt;R-SID1-&gt;=
L12&gt;&quot;<br>
<br>
NEW:=C2=A0 =C2=A0 Replication State:<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 R2: &lt;R-SID2, L12=
&gt;&quot;<br>
<br></blockquote><div><br></div><div>[RP] Thanks for catching these. We wil=
l fix them in rev 00 of WG document.<br></div><div>=C2=A0</div><blockquote =
class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px sol=
id rgb(204,204,204);padding-left:1ex">
Thanks,<br>
Regards,<br>
--Bruno<br>
<br>
___________________________________________________________________________=
______________________________________________<br>
<br>
Ce message et ses pieces jointes peuvent contenir des informations confiden=
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 ce message par erreur, veuillez le signaler<br>
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Orange decline toute responsabilite si ce message a ete altere, deforme ou =
falsifie. Merci.<br>
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This message and its attachments may contain confidential or privileged inf=
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Thank you.<br>
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</blockquote></div></div>

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From: Rishabh Parekh <rishabhp@gmail.com>
Date: Wed, 15 Jul 2020 14:28:05 -0700
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Content-Type: text/plain; charset="UTF-8"

Bruno,
One clarification:

BTW, there may be two typos in the draft:
> "R6, as Leaf, performs NEXT operation, pops R-SID1 label and delivers the
> payload."
> :s/R-SID1/R-SID6
>
> OLD:    Replication State:
>                 R2: <R-SID1->L12>"
>
> NEW:    Replication State:
>                 R2: <R-SID2, L12>"
>
>
We did not want L12 to be mistaken as a SID and hence the "<R-SID2->L12>"
convention (indicating push R-SID2 and send on interface L12) as compared
to
"<N-SID6, R-SID6>" where both elements are SIDs.

-Rishabh

On Wed, Jul 15, 2020 at 2:04 PM Rishabh Parekh <rishabhp@gmail.com> wrote:

> Bruno,
> Replies inline @ [RP]
>
>
>
>> [Bruno] Agreed, in this specific case, you don't need the SID on the
>> _packet_.
>> - Still the PCE/configuration CLI/YANG need a way to identify this
>> interface and it could be via a SID (e.g. both local adjacency SID and
>> global nodes SID (assuming PHP) seems to work, depending on needs)
>> - It seems to me that SR Policy draft is in the same situation, and they
>> still call this an SR Policy.
>> But that's a detail.
>>
>> [RP] We are on the same page. An explicit interface can be identified in
> different ways.
>
>
>> [...]
>>
>> > >
>> > > -------
>> > >
>> > > " o  When the Active Segment [RFC8402] is the Replication SID.  In
>> this
>> > >
>> > >       case, the operation for a replicated copy is CONTINUE."
>> > >
>> > >
>> > >
>> > > "CONTINUE" would mean that the segment is not a local segment.
>> > >
>> > > So the document really needs to clarify whether the replication
>> > SID/segment is a local segment, or a global segment, or something new
>> to be
>> > defined..
>> > >
>> > >
>> > The CONTINUE operation just captures the label swap for each
>> > replication, with just the Downstream Replication SID in the simplest
>> > case.
>>
>> "CONTINUE: the active segment is not completed; hence, it remains
>>    active.  In SR-MPLS, the CONTINUE operation is implemented as a SWAP
>>    of the top label [RFC3031].  In SRv6, this is the plain IPv6
>>    forwarding action of a regular IPv6 packet according to its
>>    destination address."
>> https://tools.ietf.org/html/rfc8402#section-2
>>
>> 1) SR terminology
>> Given that I think that we agreed that the replication segment is a local
>> segment (i.e. local to one node), I don't see how it could continue once
>> used. As we used it on the single node which understand it, it needs to be
>> terminated (NEXT).
>>
>> 2) Data plane
>> 2.a) SR-MPLS
>> I don't see a label swap. I see a pop of the BSID/replication SID and a
>> push of the list of SID in the SR-policy. As described in
>> https://tools.ietf.org/html/draft-ietf-spring-segment-routing-policy-08#section-8.3
>> "Let us assume that headend H has a valid SR Policy P of Segment-List
>>    <S1, S2, S3> and BSID B.
>>
>>    When H receives a packet K with label stack <B, L2, L3>, H pops B and
>>    pushes <S1, S2, S3> and forwards the resulting packet according to
>>    SID S1."
>>
>> 2.b) SRv6
>> Quoting RFC 8402 (above): "In SRv6, this is the plain IPv6
>>    forwarding action of a regular IPv6 packet according to its
>>    destination address"
>> I don't see how this can translate in a specific SR action (here
>> "replication" on the replication node. ) But since there is no SRv6
>> specific text in the draft, it's hard to guess.
>>
>
>>
>> Note that my understanding seems to match your new text/illustration in
>> appendix: there is no CONTINUE operation on a replication SID. Only NEXT
>> operation:
>> " R2, as Leaf, performs NEXT operation, pops R-SID2 label and delivers
>> the payload."
>> "R6, as Leaf, performs NEXT operation, pops R-SID1 label and delivers the
>> payload."
>> "R7, as Leaf, performs NEXT operation, pops R-SID7 label and delivers the
>> payload."
>>
>>
> [RP] I see you point. We shall re-word the text around this area in a
> future WG document (probably in rev 01).
>
>
>> BTW, there may be two typos in the draft:
>> "R6, as Leaf, performs NEXT operation, pops R-SID1 label and delivers the
>> payload."
>> :s/R-SID1/R-SID6
>>
>> OLD:    Replication State:
>>                 R2: <R-SID1->L12>"
>>
>> NEW:    Replication State:
>>                 R2: <R-SID2, L12>"
>>
>>
> [RP] Thanks for catching these. We will fix them in rev 00 of WG document.
>
>
>> Thanks,
>> Regards,
>> --Bruno
>>
>>
>> _________________________________________________________________________________________________________________________
>>
>> Ce message et ses pieces jointes peuvent contenir des informations
>> confidentielles ou privilegiees et ne doivent donc
>> pas etre diffuses, exploites ou copies sans autorisation. Si vous avez
>> recu ce message par erreur, veuillez le signaler
>> a l'expediteur et le detruire ainsi que les pieces jointes. Les messages
>> electroniques etant susceptibles d'alteration,
>> Orange decline toute responsabilite si ce message a ete altere, deforme
>> ou falsifie. Merci.
>>
>> This message and its attachments may contain confidential or privileged
>> information that may be protected by law;
>> they should not be distributed, used or copied without authorisation.
>> If you have received this email in error, please notify the sender and
>> delete this message and its attachments.
>> As emails may be altered, Orange is not liable for messages that have
>> been modified, changed or falsified.
>> Thank you.
>>
>>

--0000000000002ba16705aa819a80
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div>Bruno,</div><div>One clarification: <br></div><div><b=
r></div><div>
<span class=3D"gmail-im"><blockquote class=3D"gmail_quote" style=3D"margin:=
0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
BTW, there may be two typos in the draft:<br>
&quot;R6, as Leaf, performs NEXT operation, pops R-SID1 label and delivers =
the payload.&quot;<br>
:s/R-SID1/R-SID6<br>
<br>
OLD:=C2=A0 =C2=A0 Replication State:<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 R2: &lt;R-SID1-&gt;=
L12&gt;&quot;<br>
<br>
NEW:=C2=A0 =C2=A0 Replication State:<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 R2: &lt;R-SID2, L12=
&gt;&quot;<br>
<br></blockquote><div><br></div></span><div>We did not want L12 to be mista=
ken as a SID and hence the &quot;&lt;R-SID2-&gt;L12&gt;&quot; convention (i=
ndicating push R-SID2 and send on interface L12) as compared to <br></div><=
div>&quot;&lt;N-SID6, R-SID6&gt;&quot; where both elements are SIDs.</div><=
div><br></div><div>-Rishabh<br></div>

</div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_=
attr">On Wed, Jul 15, 2020 at 2:04 PM Rishabh Parekh &lt;<a href=3D"mailto:=
rishabhp@gmail.com">rishabhp@gmail.com</a>&gt; wrote:<br></div><blockquote =
class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px sol=
id rgb(204,204,204);padding-left:1ex"><div dir=3D"ltr"><div dir=3D"ltr"><di=
v>Bruno,</div><div>Replies inline @ [RP]<br></div></div><br><div class=3D"g=
mail_quote"><br><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0=
px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<br>
[Bruno] Agreed, in this specific case, you don&#39;t need the SID on the _p=
acket_. <br>
- Still the PCE/configuration CLI/YANG need a way to identify this interfac=
e and it could be via a SID (e.g. both local adjacency SID and global nodes=
 SID (assuming PHP) seems to work, depending on needs)<br>
- It seems to me that SR Policy draft is in the same situation, and they st=
ill call this an SR Policy.<br>
But that&#39;s a detail.<br>
<br></blockquote><div>[RP] We are on the same page. An explicit interface c=
an be identified in different ways.<br></div><div>=C2=A0</div><blockquote c=
lass=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px soli=
d rgb(204,204,204);padding-left:1ex">
[...]<br>
<br>
&gt; &gt;<br>
&gt; &gt; -------<br>
&gt; &gt;<br>
&gt; &gt; &quot; o=C2=A0 When the Active Segment [RFC8402] is the Replicati=
on SID.=C2=A0 In this<br>
&gt; &gt;<br>
&gt; &gt;=C2=A0 =C2=A0 =C2=A0 =C2=A0case, the operation for a replicated co=
py is CONTINUE.&quot;<br>
&gt; &gt;<br>
&gt; &gt;<br>
&gt; &gt;<br>
&gt; &gt; &quot;CONTINUE&quot; would mean that the segment is not a local s=
egment.<br>
&gt; &gt;<br>
&gt; &gt; So the document really needs to clarify whether the replication<b=
r>
&gt; SID/segment is a local segment, or a global segment, or something new =
to be<br>
&gt; defined..<br>
&gt; &gt;<br>
&gt; &gt;<br>
&gt; The CONTINUE operation just captures the label swap for each<br>
&gt; replication, with just the Downstream Replication SID in the simplest<=
br>
&gt; case.<br>
<br>
&quot;CONTINUE: the active segment is not completed; hence, it remains<br>
=C2=A0 =C2=A0active.=C2=A0 In SR-MPLS, the CONTINUE operation is implemente=
d as a SWAP<br>
=C2=A0 =C2=A0of the top label [RFC3031].=C2=A0 In SRv6, this is the plain I=
Pv6<br>
=C2=A0 =C2=A0forwarding action of a regular IPv6 packet according to its<br=
>
=C2=A0 =C2=A0destination address.&quot;<br>
<a href=3D"https://tools.ietf.org/html/rfc8402#section-2" rel=3D"noreferrer=
" target=3D"_blank">https://tools.ietf.org/html/rfc8402#section-2</a><br>
<br>
1) SR terminology<br>
Given that I think that we agreed that the replication segment is a local s=
egment (i.e. local to one node), I don&#39;t see how it could continue once=
 used. As we used it on the single node which understand it, it needs to be=
 terminated (NEXT).<br>
<br>
2) Data plane<br>
2.a) SR-MPLS<br>
I don&#39;t see a label swap. I see a pop of the BSID/replication SID and a=
 push of the list of SID in the SR-policy. As described in=C2=A0 <a href=3D=
"https://tools.ietf.org/html/draft-ietf-spring-segment-routing-policy-08#se=
ction-8.3" rel=3D"noreferrer" target=3D"_blank">https://tools.ietf.org/html=
/draft-ietf-spring-segment-routing-policy-08#section-8.3</a><br>
&quot;Let us assume that headend H has a valid SR Policy P of Segment-List<=
br>
=C2=A0 =C2=A0&lt;S1, S2, S3&gt; and BSID B.<br>
<br>
=C2=A0 =C2=A0When H receives a packet K with label stack &lt;B, L2, L3&gt;,=
 H pops B and<br>
=C2=A0 =C2=A0pushes &lt;S1, S2, S3&gt; and forwards the resulting packet ac=
cording to<br>
=C2=A0 =C2=A0SID S1.&quot;<br>
<br>
2.b) SRv6<br>
Quoting RFC 8402 (above): &quot;In SRv6, this is the plain IPv6<br>
=C2=A0 =C2=A0forwarding action of a regular IPv6 packet according to its<br=
>
=C2=A0 =C2=A0destination address&quot;<br>
I don&#39;t see how this can translate in a specific SR action (here &quot;=
replication&quot; on the replication node. ) But since there is no SRv6 spe=
cific text in the draft, it&#39;s hard to guess.<br></blockquote><blockquot=
e class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px s=
olid rgb(204,204,204);padding-left:1ex">
<br>
<br>
Note that my understanding seems to match your new text/illustration in app=
endix: there is no CONTINUE operation on a replication SID. Only NEXT opera=
tion:<br>
&quot; R2, as Leaf, performs NEXT operation, pops R-SID2 label and delivers=
 the payload.&quot;<br>
&quot;R6, as Leaf, performs NEXT operation, pops R-SID1 label and delivers =
the payload.&quot; <br>
&quot;R7, as Leaf, performs NEXT operation, pops R-SID7 label and delivers =
the payload.&quot;<br>
<br></blockquote><div><br></div><div>
[RP] I see you point. We shall re-word the text around this area in a futur=
e WG document (probably in rev 01).<br></div><div>=C2=A0</div><blockquote c=
lass=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px soli=
d rgb(204,204,204);padding-left:1ex">
BTW, there may be two typos in the draft:<br>
&quot;R6, as Leaf, performs NEXT operation, pops R-SID1 label and delivers =
the payload.&quot;<br>
:s/R-SID1/R-SID6<br>
<br>
OLD:=C2=A0 =C2=A0 Replication State:<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 R2: &lt;R-SID1-&gt;=
L12&gt;&quot;<br>
<br>
NEW:=C2=A0 =C2=A0 Replication State:<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 R2: &lt;R-SID2, L12=
&gt;&quot;<br>
<br></blockquote><div><br></div><div>[RP] Thanks for catching these. We wil=
l fix them in rev 00 of WG document.<br></div><div>=C2=A0</div><blockquote =
class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px sol=
id rgb(204,204,204);padding-left:1ex">
Thanks,<br>
Regards,<br>
--Bruno<br>
<br>
___________________________________________________________________________=
______________________________________________<br>
<br>
Ce message et ses pieces jointes peuvent contenir des informations confiden=
tielles ou privilegiees et ne doivent donc<br>
pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu=
 ce message par erreur, veuillez le signaler<br>
a l&#39;expediteur et le detruire ainsi que les pieces jointes. Les message=
s electroniques etant susceptibles d&#39;alteration,<br>
Orange decline toute responsabilite si ce message a ete altere, deforme ou =
falsifie. Merci.<br>
<br>
This message and its attachments may contain confidential or privileged inf=
ormation that may be protected by law;<br>
they should not be distributed, used or copied without authorisation.<br>
If you have received this email in error, please notify the sender and dele=
te this message and its attachments.<br>
As emails may be altered, Orange is not liable for messages that have been =
modified, changed or falsified.<br>
Thank you.<br>
<br>
</blockquote></div></div>
</blockquote></div>

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Dear WG,=20

=20

The mechanism introduced to SR by this document would be very useful for =
our
network, which will provide both 5G and various business services. I =
support
the adoption as coauthor.=20

=20

Best regards,

=20

Zhu Yongqing

=20

=B7=A2=BC=FE=C8=CB: spring <spring-bounces@ietf.org> =B4=FA=B1=ED James =
Guichard
=B7=A2=CB=CD=CA=B1=BC=E4: 2020=C4=EA7=D4=C215=C8=D5 19:17
=CA=D5=BC=FE=C8=CB: spring@ietf.org
=B3=AD=CB=CD: spring-chairs@ietf.org
=D6=F7=CC=E2: [spring] WG Adoption Call for =
draft-dong-spring-sr-for-enhanced-vpn

=20

Dear WG:

=20

This email begins a 2 week WG adoption call for
https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/
ending Wednesday 29th July 2020.=20

=20

Please speak up if you support or oppose adopting this document into the =
WG.
Please also provide comments/reasons for that support (or lack thereof).
Silence will not be considered consent.

=20

Thanks!

=20

Jim, Joel & Bruno

=20

=20

=20


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</o:shapelayout></xml><![endif]--></head><body lang=3DZH-CN =
link=3D"#0563C1" vlink=3D"#954F72"><div class=3DWordSection1><p =
class=3DMsoNormal><span lang=3DEN-US>Dear WG, <o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US>The mechanism introduced to SR by =
this document would be very useful for our network, which will provide =
both 5G and various business services. I support the adoption as =
coauthor. <o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US>Best regards,<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:DengXian'>Zhu =
Yongqing<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:DengXian'><o:p>&nbsp;</o:p></span><=
/p><div><div style=3D'border:none;border-top:solid #E1E1E1 =
1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=3DMsoNormal><b><span =
style=3D'font-family:DengXian'>=B7=A2=BC=FE=C8=CB<span =
lang=3DEN-US>:</span></span></b><span lang=3DEN-US =
style=3D'font-family:DengXian'> spring &lt;spring-bounces@ietf.org&gt; =
</span><b><span style=3D'font-family:DengXian'>=B4=FA=B1=ED =
</span></b><span lang=3DEN-US style=3D'font-family:DengXian'>James =
Guichard<br></span><b><span =
style=3D'font-family:DengXian'>=B7=A2=CB=CD=CA=B1=BC=E4<span =
lang=3DEN-US>:</span></span></b><span lang=3DEN-US =
style=3D'font-family:DengXian'> 2020</span><span =
style=3D'font-family:DengXian'>=C4=EA<span =
lang=3DEN-US>7</span>=D4=C2<span lang=3DEN-US>15</span>=C8=D5<span =
lang=3DEN-US> 19:17<br></span><b>=CA=D5=BC=FE=C8=CB<span =
lang=3DEN-US>:</span></b><span lang=3DEN-US> =
spring@ietf.org<br></span><b>=B3=AD=CB=CD<span =
lang=3DEN-US>:</span></b><span lang=3DEN-US> =
spring-chairs@ietf.org<br></span><b>=D6=F7=CC=E2<span =
lang=3DEN-US>:</span></b><span lang=3DEN-US> [spring] WG Adoption Call =
for =
draft-dong-spring-sr-for-enhanced-vpn<o:p></o:p></span></span></p></div><=
/div><p class=3DMsoNormal><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US>Dear WG:<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US>This email begins a 2 week WG adoption call for <a =
href=3D"https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhance=
d-vpn/">https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhance=
d-vpn/</a> ending Wednesday 29<sup>th</sup> July 2020. =
<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US>Please speak up if you support or oppose adopting this =
document into the WG. Please also provide comments/reasons for that =
support (or lack thereof). Silence will not be considered =
consent.<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US>Thanks!<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US>Jim, Joel &amp; Bruno<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></p></div></body></html>
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Subject: Re: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn
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<html><head>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Diso-8859-=
1"><style>body { line-height: 1.5; }blockquote { margin-top: 0px; margin-bo=
ttom: 0px; margin-left: 0.5em; }p { margin-top: 0px; margin-bottom: 0px; }b=
ody { font-size: 10.5pt; font-family: ????; color: rgb(0, 0, 0); line-heigh=
t: 1.5; }body { font-size: 10.5pt; color: rgb(0, 0, 0); line-height: 1.5; }=
</style></head><body>=0A=
<!--[if gte mso 9]><xml>=0A=
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</xml><![endif]--><!--[if gte mso 9]><xml>=0A=
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<div><span></span><p style=3D"font-size: 13.3333px; line-height: normal; ma=
rgin-top: 0px; margin-bottom: 0px;">Hi All,</p><p style=3D"font-size: 13.33=
33px; line-height: normal; margin-top: 0px; margin-bottom: 0px;"><br></p><p=
 style=3D"font-size: 13.3333px; line-height: normal; margin-top: 0px; margi=
n-bottom: 0px;">I support the adoption of the draft.&nbsp;</p><p style=3D"f=
ont-size: 13.3333px; line-height: normal; margin-top: 0px; margin-bottom: 0=
px;"><br></p><p style=3D"font-size: 13.3333px; line-height: normal; margin-=
top: 0px; margin-bottom: 0px;">Regards,</p><p style=3D"font-size: 13.3333px=
; line-height: normal; margin-top: 0px; margin-bottom: 0px;">Peng Liu</p></=
div>=0A=
<div><br></div><hr style=3D"width: 210px; height: 1px;" color=3D"#b5c4df" s=
ize=3D"1" align=3D"left">=0A=
<div><span><div style=3D"MARGIN: 10px; FONT-FAMILY: verdana; FONT-SIZE: 10p=
t"><div>liupengyjy@outlook.com</div></div></span></div>=0A=
<blockquote style=3D"margin-Top: 0px; margin-Bottom: 0px; margin-Left: 0.5e=
m"><div>&nbsp;</div><div style=3D"border:none;border-top:solid #B5C4DF 1.0p=
t;padding:3.0pt 0cm 0cm 0cm"><div style=3D"PADDING-RIGHT: 8px; PADDING-LEFT=
: 8px; FONT-SIZE: 12px;FONT-FAMILY:tahoma;COLOR:#000000; BACKGROUND: #efefe=
f; PADDING-BOTTOM: 8px; PADDING-TOP: 8px"><div><b>From:</b>&nbsp;<a href=3D=
"mailto:james.n.guichard@futurewei.com" style=3D"color: rgb(5, 99, 193); te=
xt-decoration: underline;">James Guichard</a></div><div><b>Date:</b>&nbsp;2=
020-07-15&nbsp;19:16</div><div><b>To:</b>&nbsp;<a href=3D"mailto:spring@iet=
f.org" style=3D"color: rgb(5, 99, 193); text-decoration: underline;" class=
=3D"">spring@ietf.org</a></div><div><b>CC:</b>&nbsp;<a href=3D"mailto:sprin=
g-chairs@ietf.org" style=3D"color: rgb(5, 99, 193); text-decoration: underl=
ine;">spring-chairs@ietf.org</a></div><div><b>Subject:</b>&nbsp;[spring] WG=
 Adoption Call for draft-dong-spring-sr-for-enhanced-vpn</div></div></div><=
div><div class=3D"FoxDiv20200715222729194014">=0A=
<!--[if gte mso 9]><xml>=0A=
<o:shapedefaults v:ext=3D"edit" spidmax=3D"1026" ></o:shapedefaults>=0A=
</xml><![endif]--><!--[if gte mso 9]><xml>=0A=
<o:shapelayout v:ext=3D"edit">=0A=
<o:idmap v:ext=3D"edit" data=3D"1" ></o:idmap>=0A=
</o:shapelayout></xml><![endif]-->=0A=
<div class=3D"WordSection1" style=3D"page: WordSection1;">=0A=
<p class=3D"MsoNormal" style=3D"margin: 0px 0in; font-size: 11pt; font-fami=
ly: Calibri, sans-serif;"><span style=3D"mso-fareast-language:ZH-CN">Dear W=
G:<o:p></o:p></span></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0px 0in; font-size: 11pt; font-fami=
ly: Calibri, sans-serif;"><span style=3D"mso-fareast-language:ZH-CN"><o:p>&=
nbsp;</o:p></span></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0px 0in; font-size: 11pt; font-fami=
ly: Calibri, sans-serif;"><span style=3D"mso-fareast-language:ZH-CN">This e=
mail begins a 2 week WG adoption call for=0A=
<a href=3D"https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanc=
ed-vpn/" style=3D"color: rgb(5, 99, 193); text-decoration: underline;">=0A=
https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/</a>=
 ending Wednesday 29<sup>th</sup> July 2020.=0A=
<o:p></o:p></span></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0px 0in; font-size: 11pt; font-fami=
ly: Calibri, sans-serif;"><span style=3D"mso-fareast-language:ZH-CN"><o:p>&=
nbsp;</o:p></span></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0px 0in; font-size: 11pt; font-fami=
ly: Calibri, sans-serif;"><span style=3D"mso-fareast-language:ZH-CN">Please=
 speak up if you support or oppose adopting this document into the WG. Plea=
se also provide comments/reasons for that support (or lack thereof). Silenc=
e will not be considered consent.<o:p></o:p></span></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0px 0in; font-size: 11pt; font-fami=
ly: Calibri, sans-serif;"><span style=3D"mso-fareast-language:ZH-CN"><o:p>&=
nbsp;</o:p></span></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0px 0in; font-size: 11pt; font-fami=
ly: Calibri, sans-serif;"><span style=3D"mso-fareast-language:ZH-CN">Thanks=
!<o:p></o:p></span></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0px 0in; font-size: 11pt; font-fami=
ly: Calibri, sans-serif;"><span style=3D"mso-fareast-language:ZH-CN"><o:p>&=
nbsp;</o:p></span></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0px 0in; font-size: 11pt; font-fami=
ly: Calibri, sans-serif;"><span style=3D"mso-fareast-language:ZH-CN">Jim, J=
oel &amp; Bruno<o:p></o:p></span></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0px 0in; font-size: 11pt; font-fami=
ly: Calibri, sans-serif;"><o:p>&nbsp;</o:p></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0px 0in; font-size: 11pt; font-fami=
ly: Calibri, sans-serif;"><o:p>&nbsp;</o:p></p>=0A=
<p class=3D"MsoNormal" style=3D"margin: 0px 0in; font-size: 11pt; font-fami=
ly: Calibri, sans-serif;"><o:p>&nbsp;</o:p></p>=0A=
</div>=0A=
</div></div></blockquote>=0A=
</body></html>=

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v class=3D=22rich_html_content=22 style=3D=22color:=23000000; font-Size:12p=
t; font-family:=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91;=20word-wrap:break-word=
;x-overflow:hidden;=22>Hi=20All,</div><div=20class=3D=22rich_html_content=
=22=20style=3D=22color:=23000000;=20font-Size:12pt;=20font-family:=E5=BE=AE=
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word-wrap:break-word;x-overflow:hidden;=22>I=20support=20the=20WG=20adoptio=
n=20of=20the=20draft.</div><div=20class=3D=22rich_html_content=22=20style=
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<div=20class=3D=22rich_html_content=22=20style=3D=22color:=23000000;=20font=
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;=22>Yisong</div><div=20id=3D=22SIGNNAME10043=22></div><div><span=20id=3D=
=22_THINKMAILNAME10043=22=20font-size:12pt;font-family:microsoft=3D=22=22=
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n-top:=200px;=20margin-bottom:=200px;=20margin-left:=200.5em;=22><div>&nbsp=
;</div><div=20style=3D=22border:none;border-top:solid=20=23B5C4DF=201.0pt;p=
adding:3.0pt=200cm=200cm=200cm=22><meta=20charset=3D=22UTF-8=22><div=20styl=
e=3D=22color:=23333333;=20font-Size:12pt;font-family:Microsoft=20YaHei;=22>=
=E5=8F=91=E4=BB=B6=E4=BA=BA:=20<a=20href=3D=22mailto:james.n.guichard=40fut=
urewei.com=22>James=20Guichard</a></div><div=20style=3D=22color:=23333333;=
=20font-Size:12pt;font-family:Microsoft=20YaHei;=22>=E6=97=B6=E9=97=B4:=202=
020/07/15(=E6=98=9F=E6=9C=9F=E4=B8=89)19:16</div><div=20style=3D=22color:=
=23333333;=20font-Size:12pt;font-family:Microsoft=20YaHei;=22>=E6=94=B6=E4=
=BB=B6=E4=BA=BA:=20<a=20href=3D=22mailto:spring=40ietf.org=22>spring</a>;</=
div><div=20style=3D=22color:=23333333;=20font-Size:12pt;font-family:Microso=
ft=20YaHei;=22>=E6=8A=84=E9=80=81=E4=BA=BA:=20<a=20href=3D=22mailto:spring-=
chairs=40ietf.org=22>spring-chairs</a>;</div><div=20style=3D=22color:=23333=
333;=20font-Size:12pt;font-family:Microsoft=20YaHei;=22>=E4=B8=BB=E9=A2=98:=
=20=5Bspring=5D=20WG=20Adoption=20Call=20for=20draft-dong-spring-sr-for-enh=
anced-vpn</div></div></blockquote>=0A<div=20class=3D=22WordSection1=22=20st=
yle=3D=22page:WordSection1;=22>=0A<p=20class=3D=22MsoNormal=22><span=20styl=
e=3D=22mso-fareast-language:ZH-CN=22>Dear=20WG:<o:p></o:p></span></p>=0A<p=
=20class=3D=22MsoNormal=22><span=20style=3D=22mso-fareast-language:ZH-CN=22=
><o:p>&nbsp;</o:p></span></p>=0A<p=20class=3D=22MsoNormal=22><span=20style=
=3D=22mso-fareast-language:ZH-CN=22>This=20email=20begins=20a=202=20week=20=
WG=20adoption=20call=20for=0A<a=20href=3D=22https://datatracker.ietf.org/do=
c/draft-dong-spring-sr-for-enhanced-vpn/=22>=0Ahttps://datatracker.ietf.org=
/doc/draft-dong-spring-sr-for-enhanced-vpn/</a>=20ending=20Wednesday=2029<s=
up>th</sup>=20July=202020.=0A<o:p></o:p></span></p>=0A<p=20class=3D=22MsoNo=
rmal=22><span=20style=3D=22mso-fareast-language:ZH-CN=22><o:p>&nbsp;</o:p><=
/span></p>=0A<p=20class=3D=22MsoNormal=22><span=20style=3D=22mso-fareast-la=
nguage:ZH-CN=22>Please=20speak=20up=20if=20you=20support=20or=20oppose=20ad=
opting=20this=20document=20into=20the=20WG.=20Please=20also=20provide=20com=
ments/reasons=20for=20that=20support=20(or=20lack=20thereof).=20Silence=20w=
ill=20not=20be=20considered=20consent.<o:p></o:p></span></p>=0A<p=20class=
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From: Mach Chen <mach.chen@huawei.com>
To: James Guichard <james.n.guichard@futurewei.com>, "spring@ietf.org" <spring@ietf.org>
CC: "spring-chairs@ietf.org" <spring-chairs@ietf.org>
Thread-Topic: [spring] WG Adoption Call for draft-raza-spring-sr-policy-yang
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Date: Thu, 16 Jul 2020 01:40:24 +0000
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Hi,

I have read the draft, it's an important building block of SRv6, support th=
e adoption.

Best regards,
Mach


From: spring [mailto:spring-bounces@ietf.org] On Behalf Of James Guichard
Sent: Monday, July 13, 2020 11:38 PM
To: spring@ietf.org
Cc: spring-chairs@ietf.org
Subject: [spring] WG Adoption Call for draft-raza-spring-sr-policy-yang

Dear WG:

This email begins a 2 week WG adoption call for https://datatracker.ietf.or=
g/doc/draft-raza-spring-sr-policy-yang/ ending Monday 27th July 2020.

Please speak up if you support or oppose adopting this document into the WG=
. Please also provide comments/reasons for that support (or lack thereof). =
Silence will not be considered consent.

Thanks!

Jim, Joel & Bruno




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<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">Hi,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">I have read the draft, it&#8217;s an important building block of =
SRv6, support the adoption.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">Best regards,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">Mach<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
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0cm 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US">From:</span></b><span lang=
=3D"EN-US"> spring [mailto:spring-bounces@ietf.org]
<b>On Behalf Of </b>James Guichard<br>
<b>Sent:</b> Monday, July 13, 2020 11:38 PM<br>
<b>To:</b> spring@ietf.org<br>
<b>Cc:</b> spring-chairs@ietf.org<br>
<b>Subject:</b> [spring] WG Adoption Call for draft-raza-spring-sr-policy-y=
ang<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Dear WG:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">This email begins a 2 week WG a=
doption call for
<a href=3D"https://datatracker.ietf.org/doc/draft-raza-spring-sr-policy-yan=
g/">https://datatracker.ietf.org/doc/draft-raza-spring-sr-policy-yang/</a> =
ending Monday 27<sup>th</sup> July 2020.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Please speak up if you support =
or oppose adopting this document into the WG. Please also provide comments/=
reasons for that support (or lack thereof). Silence will not be considered =
consent.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Thanks!<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Jim, Joel &amp; Bruno<o:p></o:p=
></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
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From: Mach Chen <mach.chen@huawei.com>
To: James Guichard <james.n.guichard@futurewei.com>, "spring@ietf.org" <spring@ietf.org>
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Hi,

I have read the draft, it's an important building block of SRv6, support th=
e adoption.

Best regards,
Mach

From: spring [mailto:spring-bounces@ietf.org] On Behalf Of James Guichard
Sent: Tuesday, July 14, 2020 5:52 AM
To: spring@ietf.org
Cc: spring-chairs@ietf.org
Subject: [spring] WG Adoption Call for draft-raza-spring-srv6-yang

Dear WG:

This email begins a 2 week WG adoption call for https://datatracker.ietf.or=
g/doc/draft-raza-spring-srv6-yang/ ending Monday 27th July 2020.

Please speak up if you support or oppose adopting this document into the WG=
. Please also provide comments/reasons for that support (or lack thereof). =
Silence will not be considered consent.

Thanks!

Jim, Joel & Bruno






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<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
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<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US">From:</span></b><span lang=
=3D"EN-US"> spring [mailto:spring-bounces@ietf.org]
<b>On Behalf Of </b>James Guichard<br>
<b>Sent:</b> Tuesday, July 14, 2020 5:52 AM<br>
<b>To:</b> spring@ietf.org<br>
<b>Cc:</b> spring-chairs@ietf.org<br>
<b>Subject:</b> [spring] WG Adoption Call for draft-raza-spring-srv6-yang<o=
:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Dear WG:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">This email begins a 2 week WG a=
doption call for
<a href=3D"https://datatracker.ietf.org/doc/draft-raza-spring-srv6-yang/">h=
ttps://datatracker.ietf.org/doc/draft-raza-spring-srv6-yang/</a> ending Mon=
day 27<sup>th</sup> July 2020.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Please speak up if you support =
or oppose adopting this document into the WG. Please also provide comments/=
reasons for that support (or lack thereof). Silence will not be considered =
consent.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Thanks!<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Jim, Joel &amp; Bruno<o:p></o:p=
></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
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nt-family:&quot;Times New Roman&quot;,serif"><o:p>&nbsp;</o:p></span></i></=
p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
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From: Mach Chen <mach.chen@huawei.com>
To: James Guichard <james.n.guichard@futurewei.com>, "spring@ietf.org" <spring@ietf.org>
CC: "spring-chairs@ietf.org" <spring-chairs@ietf.org>
Thread-Topic: WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn
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Date: Thu, 16 Jul 2020 01:45:50 +0000
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Hi,

I have read several versions of this draft, I think this is a useful work, =
hence support the adoption!

One comment about the draft, it's better to decouple this draft a bit from =
network slicing, since it can be as a basic function that can not only be u=
sed for network slicing, but be used for other scenarios.

Best regards,
Mach

From: spring [mailto:spring-bounces@ietf.org] On Behalf Of James Guichard
Sent: Wednesday, July 15, 2020 7:17 PM
To: spring@ietf.org
Cc: spring-chairs@ietf.org
Subject: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vp=
n

Dear WG:

This email begins a 2 week WG adoption call for https://datatracker.ietf.or=
g/doc/draft-dong-spring-sr-for-enhanced-vpn/ ending Wednesday 29th July 202=
0.

Please speak up if you support or oppose adopting this document into the WG=
. Please also provide comments/reasons for that support (or lack thereof). =
Silence will not be considered consent.

Thanks!

Jim, Joel & Bruno




--_000_F73A3CB31E8BE34FA1BBE3C8F0CB2AE297CE6239dggeml530mbschi_
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<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">Hi,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">I have read several versions of this draft, I think this is a use=
ful work, hence support the adoption!<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">One comment about the draft, it&#8217;s better to decouple this d=
raft a bit from network slicing, since it can be as a basic function that c=
an not only be used for network slicing, but
 be used for other scenarios.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">Best regards,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">Mach<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<div style=3D"border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm =
4.0pt">
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US">From:</span></b><span lang=
=3D"EN-US"> spring [mailto:spring-bounces@ietf.org]
<b>On Behalf Of </b>James Guichard<br>
<b>Sent:</b> Wednesday, July 15, 2020 7:17 PM<br>
<b>To:</b> spring@ietf.org<br>
<b>Cc:</b> spring-chairs@ietf.org<br>
<b>Subject:</b> [spring] WG Adoption Call for draft-dong-spring-sr-for-enha=
nced-vpn<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Dear WG:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">This email begins a 2 week WG a=
doption call for
<a href=3D"https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanc=
ed-vpn/">
https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/</a>=
 ending Wednesday 29<sup>th</sup> July 2020.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Please speak up if you support =
or oppose adopting this document into the WG. Please also provide comments/=
reasons for that support (or lack thereof). Silence will not be considered =
consent.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Thanks!<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Jim, Joel &amp; Bruno<o:p></o:p=
></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
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--_000_F73A3CB31E8BE34FA1BBE3C8F0CB2AE297CE6239dggeml530mbschi_--


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faults>=0A</xml><![endif]--><!--[if gte mso 9]><xml>=0A<o:shapelayout v:ex=
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yout></xml><![endif]-->=0A<div class=3D"rich_html_content" style=3D"word-w=
rap: break-word;"><div class=3D"rich_html_content" style=3D"word-wrap: bre=
ak-word;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=BB=91"><span style=
=3D"font-size: 16px; line-height: 24px;">Hi All,</span></font></div><div c=
lass=3D"rich_html_content" style=3D"word-wrap: break-word;"><span style=3D=
"font-size: 16px; line-height: 24px; font-family: =E5=BE=AE=E8=BD=AF=E9=9B=
=85=E9=BB=91; background-color: transparent;">I support the adoption of th=
is draft. &nbsp;Since slicing is a important requirement in building 5G ne=
twork, and and this could be useful for in other general scenarios=EF=BC=
=8C I hope this work can progress quickly later on.</span></div><div class=
=3D"rich_html_content" style=3D"word-wrap: break-word;"><span style=3D"fon=
t-size: 16px; line-height: 24px; font-family: =E5=BE=AE=E8=BD=AF=E9=9B=85=
=E9=BB=91; background-color: transparent;"><br></span></div><div class=3D"=
rich_html_content" style=3D"word-wrap: break-word;"><font face=3D"=E5=BE=
=AE=E8=BD=AF=E9=9B=85=E9=BB=91"><span style=3D"font-size: 16px; line-heigh=
t: 24px;">Thanks!</span></font></div><div class=3D"rich_html_content" styl=
e=3D"word-wrap: break-word;"><font face=3D"=E5=BE=AE=E8=BD=AF=E9=9B=85=E9=
=BB=91"><span style=3D"font-size: 16px; line-height: 24px;">Chongfeng</spa=
n></font></div></div><blockquote style=3D"margin-top: 0px; margin-bottom: =
0px; margin-left: 0.5em;"><div style=3D"border:none;border-top:solid #B5C4=
DF 1.0pt;padding:3.0pt 0cm 0cm 0cm"><div style=3D"color:#333333; font-Size=
:12pt;font-family:Microsoft YaHei;">=E5=8F=91=E4=BB=B6=E4=BA=BA: <a href=
=3D"mailto:james.n.guichard@futurewei.com">James Guichard</a></div><div st=
yle=3D"color:#333333; font-Size:12pt;font-family:Microsoft YaHei;">=E6=97=
=B6=E9=97=B4: 2020/07/15(=E6=98=9F=E6=9C=9F=E4=B8=89)19:16</div><div style=
=3D"color:#333333; font-Size:12pt;font-family:Microsoft YaHei;">=E6=94=B6=
=E4=BB=B6=E4=BA=BA: <a href=3D"mailto:spring@ietf.org">spring</a>;</div><d=
iv style=3D"color:#333333; font-Size:12pt;font-family:Microsoft YaHei;">=
=E6=8A=84=E9=80=81=E4=BA=BA: <a href=3D"mailto:spring-chairs@ietf.org">spr=
ing-chairs</a>;</div><div style=3D"color:#333333; font-Size:12pt;font-fami=
ly:Microsoft YaHei;">=E4=B8=BB=E9=A2=98: [spring] WG Adoption Call for dra=
ft-dong-spring-sr-for-enhanced-vpn</div></div></blockquote>=0A<div class=
=3D"WordSection1" style=3D"page:WordSection1;">=0A<p class=3D"MsoNormal"><=
span style=3D"mso-fareast-language:ZH-CN">Dear WG:<o:p></o:p></span></p>=
=0A<p class=3D"MsoNormal"><span style=3D"mso-fareast-language:ZH-CN"><o:p>=
&nbsp;</o:p></span></p>=0A<p class=3D"MsoNormal"><span style=3D"mso-fareas=
t-language:ZH-CN">This email begins a 2 week WG adoption call for=0A<a hre=
f=3D"https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vp=
n/">=0Ahttps://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-=
vpn/</a> ending Wednesday 29<sup>th</sup> July 2020.=0A<o:p></o:p></span><=
/p>=0A<p class=3D"MsoNormal"><span style=3D"mso-fareast-language:ZH-CN"><o=
:p>&nbsp;</o:p></span></p>=0A<p class=3D"MsoNormal"><span style=3D"mso-far=
east-language:ZH-CN">Please speak up if you support or oppose adopting thi=
s document into the WG. Please also provide comments/reasons for that supp=
ort (or lack thereof). Silence will not be considered consent.<o:p></o:p><=
/span></p>=0A<p class=3D"MsoNormal"><span style=3D"mso-fareast-language:ZH=
-CN"><o:p>&nbsp;</o:p></span></p>=0A<p class=3D"MsoNormal"><span style=3D"=
mso-fareast-language:ZH-CN">Thanks!<o:p></o:p></span></p>=0A<p class=3D"Ms=
oNormal"><span style=3D"mso-fareast-language:ZH-CN"><o:p>&nbsp;</o:p></spa=
n></p>=0A<p class=3D"MsoNormal"><span style=3D"mso-fareast-language:ZH-CN"=
>Jim, Joel &amp; Bruno<o:p></o:p></span></p>=0A<p class=3D"MsoNormal"><o:p=
>&nbsp;</o:p></p>=0A<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>=0A<p clas=
s=3D"MsoNormal"><o:p>&nbsp;</o:p></p>=0A</div>=0A</body></html>
------=_001_NextPart016057865386_=------


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To: "James Guichard" <james.n.guichard@futurewei.com>,  "'SPRING WG List'" <spring@ietf.org>
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Subject: Re: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn
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<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charse=
t=3Dutf-8"><style>body { line-height: 1.5; }blockquote { margin-top: 0px; =
margin-bottom: 0px; margin-left: 0.5em; }p { margin-top: 0px; margin-botto=
m: 0px; }div.FoxDiv20200716100455706260 { }body { font-size: 10.5pt; font-=
family: 'Microsoft YaHei UI'; color: rgb(0, 0, 0); line-height: 1.5; }</st=
yle></head><body>=0A<!--[if gte mso 9]><xml>=0A<o:shapedefaults v:ext=3D"e=
dit" spidmax=3D"1026" ></o:shapedefaults>=0A</xml><![endif]--><!--[if gte =
mso 9]><xml>=0A<o:shapelayout v:ext=3D"edit">=0A<o:idmap v:ext=3D"edit" da=
ta=3D"1" ></o:idmap>=0A</o:shapelayout></xml><![endif]-->=0A<div><span></s=
pan>Hi WG=EF=BC=8C</div><div><br></div><div><span style=3D"color: rgb(0, 0=
, 0); background-color: rgba(0, 0, 0, 0);">&nbsp; &nbsp;</span><span style=
=3D"background-color: transparent; font-size: 15px; line-height: 22.5px;">=
I support this document=EF=BC=8Cbecause it is a useful solution, especiall=
y for 5g scenarios and networks with strong SLA requirements.</span></div>=
=0A<div><span><div style=3D"margin: 10px; font-family: verdana;"><div styl=
e=3D"font-size: 13.3333px;">Thanks,</div><div style=3D"font-size: 13.3333p=
x;">Zhao Feng</div><div style=3D"font-size: 13.3333px;"><br></div><div sty=
le=3D"font-size: 13.3333px;"><br></div><div style=3D"font-size: 13.3333px;=
"><p class=3D"MsoNormal" style=3D"margin: 0cm 0cm 0.0001pt; font-size: 11p=
t; font-family: Calibri, sans-serif; line-height: normal;"><span lang=3D"E=
N-US" style=3D"font-family: 'Fira Code';">Internet Center, Research Instit=
ute of Technology and Standard, China Academy of Information and Communica=
tion Technology<o:p></o:p></span></p><p class=3D"MsoNormal" style=3D"margi=
n: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif; li=
ne-height: normal;"><span style=3D"font-family: 'Fira Code'; font-size: 11=
pt; background-color: transparent;"><br></span></p><p class=3D"MsoNormal" =
style=3D"margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri, =
sans-serif; line-height: normal;"><span style=3D"font-family: 'Fira Code';=
 font-size: 11pt; background-color: transparent;">China TTL Labs</span></p=
><p class=3D"MsoNormal" style=3D"margin: 0cm 0cm 0.0001pt; font-size: 11pt=
; font-family: Calibri, sans-serif; line-height: normal;"><span lang=3D"EN=
-US" style=3D"font-family: 'Fira Code';">&nbsp;</span></p><p class=3D"MsoN=
ormal" style=3D"margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Ca=
libri, sans-serif; line-height: normal;"><b><span lang=3D"EN-US" style=3D"=
font-family: 'Fira Code';">Add:</span></b><span lang=3D"EN-US" style=3D"fo=
nt-family: 'Fira Code';">&nbsp;Building Block B-608, No.52 HuaYuan North R=
oad Beijing, P.R.China, 100191<o:p></o:p></span></p><p class=3D"MsoNormal"=
 style=3D"margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Calibri,=
 sans-serif; line-height: normal;"><b><span lang=3D"EN-US" style=3D"font-f=
amily: 'Fira Code';">Mail:</span></b><span lang=3D"EN-US" style=3D"font-fa=
mily: 'Fira Code';">&nbsp;zhaofeng@caict.ac.cn</span></p><p class=3D"MsoNo=
rmal" style=3D"margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-family: Cal=
ibri, sans-serif; line-height: normal;"><b><span lang=3D"EN-US" style=3D"f=
ont-family: 'Fira Code';">Tel:</span></b><span lang=3D"EN-US" style=3D"fon=
t-family: 'Fira Code';">&nbsp;86-10-62300055<o:p></o:p></span></p><p class=
=3D"MsoNormal" style=3D"margin: 0cm 0cm 0.0001pt; font-size: 11pt; font-fa=
mily: Calibri, sans-serif; line-height: normal;"><b><span lang=3D"EN-US" s=
tyle=3D"font-family: 'Fira Code';">Mobile:</span></b><span lang=3D"EN-US" =
style=3D"font-family: 'Fira Code';">&nbsp;8613601068212<o:p></o:p></span><=
/p><p class=3D"MsoNormal" style=3D"margin: 0cm 0cm 0.0001pt; font-size: 11=
pt; font-family: Calibri, sans-serif; line-height: normal;"><b><span lang=
=3D"EN-US" style=3D"font-family: 'Fira Code';">Fax:&nbsp;</span></b><span =
lang=3D"EN-US" style=3D"font-family: 'Fira Code';">86-10-62300094</span></=
p></div><div style=3D"font-size: 13.3333px;"><br></div></div></span></div>=
=0A<blockquote style=3D"margin-Top: 0px; margin-Bottom: 0px; margin-Left: =
0.5em"><div>&nbsp;</div><div style=3D"border:none;border-top:solid #B5C4DF=
 1.0pt;padding:3.0pt 0cm 0cm 0cm"><div style=3D"PADDING-RIGHT: 8px; PADDIN=
G-LEFT: 8px; FONT-SIZE: 12px;FONT-FAMILY:tahoma;COLOR:#000000; BACKGROUND:=
 #efefef; PADDING-BOTTOM: 8px; PADDING-TOP: 8px"><div><b>From:</b>&nbsp;<a=
 href=3D"mailto:james.n.guichard@futurewei.com" style=3D"color: rgb(5, 99,=
 193); text-decoration: underline;">James Guichard</a></div><div><b>Date:<=
/b>&nbsp;2020-07-15&nbsp;19:16</div><div><b>To:</b>&nbsp;<a href=3D"mailto=
:spring@ietf.org" style=3D"color: rgb(5, 99, 193); text-decoration: underl=
ine;">spring@ietf.org</a></div><div><b>CC:</b>&nbsp;<a href=3D"mailto:spri=
ng-chairs@ietf.org" style=3D"color: rgb(5, 99, 193); text-decoration: unde=
rline;">spring-chairs@ietf.org</a></div><div><b>Subject:</b>&nbsp;[spring]=
 WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn</div></div></d=
iv><div><div class=3D"FoxDiv20200716100455706260">=0A<!--[if gte mso 9]><x=
ml>=0A<o:shapedefaults v:ext=3D"edit" spidmax=3D"1026" ></o:shapedefaults>=
=0A</xml><![endif]--><!--[if gte mso 9]><xml>=0A<o:shapelayout v:ext=3D"ed=
it">=0A<o:idmap v:ext=3D"edit" data=3D"1" ></o:idmap>=0A</o:shapelayout></=
xml><![endif]-->=0A<div class=3D"WordSection1" style=3D"page: WordSection1=
;">=0A<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-size:=
 11pt; font-family: Calibri, sans-serif;"><span style=3D"mso-fareast-langu=
age:ZH-CN">Dear WG:<o:p></o:p></span></p>=0A<p class=3D"MsoNormal" style=
=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-=
serif;"><span style=3D"mso-fareast-language:ZH-CN"><o:p>&nbsp;</o:p></span=
></p>=0A<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-siz=
e: 11pt; font-family: Calibri, sans-serif;"><span style=3D"mso-fareast-lan=
guage:ZH-CN">This email begins a 2 week WG adoption call for=0A<a href=3D"=
https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/" s=
tyle=3D"color: rgb(5, 99, 193); text-decoration: underline;">=0Ahttps://da=
tatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/</a> ending W=
ednesday 29<sup>th</sup> July 2020.=0A<o:p></o:p></span></p>=0A<p class=3D=
"MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-famil=
y: Calibri, sans-serif;"><span style=3D"mso-fareast-language:ZH-CN"><o:p>&=
nbsp;</o:p></span></p>=0A<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0=
.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;"><span style=
=3D"mso-fareast-language:ZH-CN">Please speak up if you support or oppose a=
dopting this document into the WG. Please also provide comments/reasons fo=
r that support (or lack thereof). Silence will not be considered consent.<=
o:p></o:p></span></p>=0A<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0.=
0001pt; font-size: 11pt; font-family: Calibri, sans-serif;"><span style=3D=
"mso-fareast-language:ZH-CN"><o:p>&nbsp;</o:p></span></p>=0A<p class=3D"Ms=
oNormal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;"><span style=3D"mso-fareast-language:ZH-CN">Thanks!<o=
:p></o:p></span></p>=0A<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0.0=
001pt; font-size: 11pt; font-family: Calibri, sans-serif;"><span style=3D"=
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Normal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: C=
alibri, sans-serif;"><span style=3D"mso-fareast-language:ZH-CN">Jim, Joel =
&amp; Bruno<o:p></o:p></span></p>=0A<p class=3D"MsoNormal" style=3D"margin=
: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;"><o=
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------=_001_NextPart102117888860_=------


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From: "Dongjie (Jimmy)" <jie.dong@huawei.com>
To: Linda Dunbar <linda.dunbar@futurewei.com>, James Guichard <james.n.guichard@futurewei.com>, "spring@ietf.org" <spring@ietf.org>
CC: "spring-chairs@ietf.org" <spring-chairs@ietf.org>
Thread-Topic: WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn
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Date: Thu, 16 Jul 2020 02:20:32 +0000
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Subject: Re: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn
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Hi Linda,

Thanks a lot for your support and comments. Please see some replies inline =
with [Jie]:

From: spring [mailto:spring-bounces@ietf.org] On Behalf Of Linda Dunbar
Sent: Thursday, July 16, 2020 4:54 AM
To: James Guichard <james.n.guichard@futurewei.com>; spring@ietf.org
Cc: spring-chairs@ietf.org
Subject: Re: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhance=
d-vpn

I support the WG adoption of this draft.

I think it is a really good idea for each Virtual Network to have its own S=
IDs.
A couple questions to the authors:

Page 9: Figure 1: The Red network has same SID on A & B for the path betwee=
n them. But between B & E there are different SIDs. Is it intended?
What scenario requires same SID on both nodes?

[Jie] The value of SIDs in the figure is just an example. As the value of a=
dj-SID is local-significant, and represents a unidirectional link, it is po=
ssible to have the same SID value used at different directions of a link, a=
nd it also allows to use different SID value on different links or differen=
t directions of the same virtual network.

Page 10: Section 4.3: the paragraph states that each node should advertise =
the identifiers of the Virtual networks it participates in: 1) does each Vi=
rtual Network has its own advertisement?  i.e. if a node supports 5 Virtual=
 Networks, the node sends out 5 independent advertisements?  2) The network=
 controller configures the SIDs for each node. Why not let the network cont=
roller manage the advertisement?

[Jie] The advertisement of SIDs can be done with either centralized control=
 or distributed control plane. The details are specified in separate docume=
nts in relevant WGs. Your review and comments on them are appreciated.

Best regards,
Jie

Cheers,
Linda

From: spring <spring-bounces@ietf.org<mailto:spring-bounces@ietf.org>> On B=
ehalf Of James Guichard
Sent: Wednesday, July 15, 2020 6:17 AM
To: spring@ietf.org<mailto:spring@ietf.org>
Cc: spring-chairs@ietf.org<mailto:spring-chairs@ietf.org>
Subject: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vp=
n

Dear WG:

This email begins a 2 week WG adoption call for https://datatracker.ietf.or=
g/doc/draft-dong-spring-sr-for-enhanced-vpn/<https://nam11.safelinks.protec=
tion.outlook.com/?url=3Dhttps%3A%2F%2Fdatatracker.ietf.org%2Fdoc%2Fdraft-do=
ng-spring-sr-for-enhanced-vpn%2F&data=3D02%7C01%7Clinda.dunbar%40futurewei.=
com%7Cf03a8de844774eb62c1508d828b09948%7C0fee8ff2a3b240189c753a1d5591fedc%7=
C1%7C0%7C637304086252107481&sdata=3DG75TrLzE%2FhSgHuwP4cClUusCr%2BofY0C1Kq%=
2Fq9CBDOwE%3D&reserved=3D0> ending Wednesday 29th July 2020.

Please speak up if you support or oppose adopting this document into the WG=
. Please also provide comments/reasons for that support (or lack thereof). =
Silence will not be considered consent.

Thanks!

Jim, Joel & Bruno




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<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">Hi Linda,
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">Thanks a lot for your support and comments. Please see some repli=
es inline with [Jie]:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<div style=3D"border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm =
4.0pt">
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US">From:</span></b><span lang=
=3D"EN-US"> spring [mailto:spring-bounces@ietf.org]
<b>On Behalf Of </b>Linda Dunbar<br>
<b>Sent:</b> Thursday, July 16, 2020 4:54 AM<br>
<b>To:</b> James Guichard &lt;james.n.guichard@futurewei.com&gt;; spring@ie=
tf.org<br>
<b>Cc:</b> spring-chairs@ietf.org<br>
<b>Subject:</b> Re: [spring] WG Adoption Call for draft-dong-spring-sr-for-=
enhanced-vpn<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">I support the WG adoption of th=
is draft. <o:p>
</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">I think it is a really good ide=
a for each Virtual Network to have its own SIDs.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">A couple questions to the autho=
rs:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Page 9: Figure 1: The Red netwo=
rk has same SID on A &amp; B for the path between them. But between B &amp;=
 E there are different SIDs. Is it intended?<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">What scenario requires same SID=
 on both nodes?
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">[Jie] The value of SIDs in the figure is just an example. As the =
value of adj-SID is local-significant, and represents a unidirectional link=
, it is possible to have the same SID
 value used at different directions of a link, and it also allows to use di=
fferent SID value on different links or different directions of the same vi=
rtual network.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Page 10: Section 4.3: the parag=
raph states that each node should advertise the identifiers of the Virtual =
networks it participates in: 1) does each Virtual Network has its own adver=
tisement?&nbsp; i.e. if a node supports 5
 Virtual Networks, the node sends out 5 independent advertisements?&nbsp; 2=
) The network controller configures the SIDs for each node. Why not let the=
 network controller manage the advertisement?<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">[Jie] The advertisement of SIDs can be done with either centraliz=
ed control or distributed control plane. The details are specified in separ=
ate documents in relevant WGs. Your review
 and comments on them are appreciated. <o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">Best regards,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">Jie<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Cheers, <o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Linda<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US">From:</span></b><span lang=
=3D"EN-US"> spring &lt;<a href=3D"mailto:spring-bounces@ietf.org">spring-bo=
unces@ietf.org</a>&gt;
<b>On Behalf Of </b>James Guichard<br>
<b>Sent:</b> Wednesday, July 15, 2020 6:17 AM<br>
<b>To:</b> <a href=3D"mailto:spring@ietf.org">spring@ietf.org</a><br>
<b>Cc:</b> <a href=3D"mailto:spring-chairs@ietf.org">spring-chairs@ietf.org=
</a><br>
<b>Subject:</b> [spring] WG Adoption Call for draft-dong-spring-sr-for-enha=
nced-vpn<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Dear WG:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">This email begins a 2 week WG a=
doption call for
<a href=3D"https://nam11.safelinks.protection.outlook.com/?url=3Dhttps%3A%2=
F%2Fdatatracker.ietf.org%2Fdoc%2Fdraft-dong-spring-sr-for-enhanced-vpn%2F&a=
mp;data=3D02%7C01%7Clinda.dunbar%40futurewei.com%7Cf03a8de844774eb62c1508d8=
28b09948%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C0%7C637304086252107481&am=
p;sdata=3DG75TrLzE%2FhSgHuwP4cClUusCr%2BofY0C1Kq%2Fq9CBDOwE%3D&amp;reserved=
=3D0">
https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/</a>=
 ending Wednesday 29<sup>th</sup> July 2020.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Please speak up if you support =
or oppose adopting this document into the WG. Please also provide comments/=
reasons for that support (or lack thereof). Silence will not be considered =
consent.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Thanks!<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Jim, Joel &amp; Bruno<o:p></o:p=
></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
</div>
</div>
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To: James Guichard <james.n.guichard@futurewei.com>, "spring@ietf.org" <spring@ietf.org>
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Thread-Topic: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn
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Date: Thu, 16 Jul 2020 02:39:34 +0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/BSeBHn98VLgA6ZqIe0hN6dIaS8E>
Subject: Re: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn
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--_000_714a11ed7e514fae98ed6d0bf33530feM10HQML02hqcncintra_--


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From: "Dongjie (Jimmy)" <jie.dong@huawei.com>
To: Mach Chen <mach.chen@huawei.com>, James Guichard <james.n.guichard@futurewei.com>, "spring@ietf.org" <spring@ietf.org>
CC: "spring-chairs@ietf.org" <spring-chairs@ietf.org>
Thread-Topic: WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn
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Date: Thu, 16 Jul 2020 02:45:51 +0000
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Hi Mach,

Thanks for your support and comment.

I totally agree that this document provides an generic mechanism, which cou=
ld be used in many scenarios not limited to network slicing. We have reduce=
d the text about network slicing in this document, and will continue to fol=
low this direction in future.

Best regards,
Jie

From: spring [mailto:spring-bounces@ietf.org] On Behalf Of Mach Chen
Sent: Thursday, July 16, 2020 9:46 AM
To: James Guichard <james.n.guichard@futurewei.com>; spring@ietf.org
Cc: spring-chairs@ietf.org
Subject: Re: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhance=
d-vpn

Hi,

I have read several versions of this draft, I think this is a useful work, =
hence support the adoption!

One comment about the draft, it's better to decouple this draft a bit from =
network slicing, since it can be as a basic function that can not only be u=
sed for network slicing, but be used for other scenarios.

Best regards,
Mach

From: spring [mailto:spring-bounces@ietf.org] On Behalf Of James Guichard
Sent: Wednesday, July 15, 2020 7:17 PM
To: spring@ietf.org<mailto:spring@ietf.org>
Cc: spring-chairs@ietf.org<mailto:spring-chairs@ietf.org>
Subject: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vp=
n

Dear WG:

This email begins a 2 week WG adoption call for https://datatracker.ietf.or=
g/doc/draft-dong-spring-sr-for-enhanced-vpn/ ending Wednesday 29th July 202=
0.

Please speak up if you support or oppose adopting this document into the WG=
. Please also provide comments/reasons for that support (or lack thereof). =
Silence will not be considered consent.

Thanks!

Jim, Joel & Bruno




--_000_500f6ae0dd264b6a92f31185e06d2224huaweicom_
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<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">Hi Mach,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">Thanks for your support and comment.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">I totally agree that this document provides an generic mechanism,=
 which could be used in many scenarios not limited to network slicing. We h=
ave reduced the text about network slicing
 in this document, and will continue to follow this direction in future. <o=
:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">Best regards,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">Jie<o:p></o:p></span></p>
<p class=3D"MsoNormal"><a name=3D"_MailEndCompose"><span lang=3D"EN-US" sty=
le=3D"font-size:10.5pt;color:#1F497D"><o:p>&nbsp;</o:p></span></a></p>
<div style=3D"border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm =
4.0pt">
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US">From:</span></b><span lang=
=3D"EN-US"> spring [mailto:spring-bounces@ietf.org]
<b>On Behalf Of </b>Mach Chen<br>
<b>Sent:</b> Thursday, July 16, 2020 9:46 AM<br>
<b>To:</b> James Guichard &lt;james.n.guichard@futurewei.com&gt;; spring@ie=
tf.org<br>
<b>Cc:</b> spring-chairs@ietf.org<br>
<b>Subject:</b> Re: [spring] WG Adoption Call for draft-dong-spring-sr-for-=
enhanced-vpn<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">Hi,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">I have read several versions of this draft, I think this is a use=
ful work, hence support the adoption!<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">One comment about the draft, it&#8217;s better to decouple this d=
raft a bit from network slicing, since it can be as a basic function that c=
an not only be used for network slicing, but
 be used for other scenarios.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">Best regards,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">Mach<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<div style=3D"border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm =
4.0pt">
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US">From:</span></b><span lang=
=3D"EN-US"> spring [<a href=3D"mailto:spring-bounces@ietf.org">mailto:sprin=
g-bounces@ietf.org</a>]
<b>On Behalf Of </b>James Guichard<br>
<b>Sent:</b> Wednesday, July 15, 2020 7:17 PM<br>
<b>To:</b> <a href=3D"mailto:spring@ietf.org">spring@ietf.org</a><br>
<b>Cc:</b> <a href=3D"mailto:spring-chairs@ietf.org">spring-chairs@ietf.org=
</a><br>
<b>Subject:</b> [spring] WG Adoption Call for draft-dong-spring-sr-for-enha=
nced-vpn<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Dear WG:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">This email begins a 2 week WG a=
doption call for
<a href=3D"https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanc=
ed-vpn/">
https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/</a>=
 ending Wednesday 29<sup>th</sup> July 2020.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Please speak up if you support =
or oppose adopting this document into the WG. Please also provide comments/=
reasons for that support (or lack thereof). Silence will not be considered =
consent.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Thanks!<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Jim, Joel &amp; Bruno<o:p></o:p=
></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
</div>
</div>
</div>
</body>
</html>

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From: "Aijun Wang" <wangaijun@tsinghua.org.cn>
To: "'James Guichard'" <james.n.guichard@futurewei.com>, <spring@ietf.org>
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Subject: Re: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn
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Yes/Support.

Resource-Aware SID can be used to accomplish the determined QoS requirements
of the specified services. 

 

 

Best Regards

 

Aijun Wang

China Telecom

 

From: spring-bounces@ietf.org [mailto:spring-bounces@ietf.org] On Behalf Of
James Guichard
Sent: Wednesday, July 15, 2020 7:17 PM
To: spring@ietf.org
Cc: spring-chairs@ietf.org
Subject: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn

 

Dear WG:

 

This email begins a 2 week WG adoption call for
https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/
ending Wednesday 29th July 2020. 

 

Please speak up if you support or oppose adopting this document into the WG.
Please also provide comments/reasons for that support (or lack thereof).
Silence will not be considered consent.

 

Thanks!

 

Jim, Joel & Bruno

 

 

 


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class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:DengXian;color:#1F497D'>Yes/Support=
.<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:DengXian;color:#1F497D'>Resource-Aw=
are SID can be used to accomplish the determined QoS requirements of the =
specified services. <o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:DengXian;color:#1F497D'><o:p>&nbsp;=
</o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:DengXian;color:#1F497D'><o:p>&nbsp;=
</o:p></span></p><p class=3DMsoNormal =
style=3D'text-align:justify;text-justify:inter-ideograph'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:DengXian;color:#1F497D'>Best =
Regards<o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'text-align:justify;text-justify:inter-ideograph'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:DengXian;color:#1F497D'><o:p>&nbsp;=
</o:p></span></p><p class=3DMsoNormal =
style=3D'text-align:justify;text-justify:inter-ideograph'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:DengXian;color:#1F497D'>Aijun =
Wang<o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'text-align:justify;text-justify:inter-ideograph'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:DengXian;color:#1F497D'>China =
Telecom</span><span lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:DengXian;color:#1F497D'><o:p></o:p>=
</span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:DengXian;color:#1F497D'><o:p>&nbsp;=
</o:p></span></p><div style=3D'border:none;border-left:solid blue =
1.5pt;padding:0cm 0cm 0cm 4.0pt'><div><div =
style=3D'border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm'><p class=3DMsoNormal><b><span =
lang=3DEN-US>From:</span></b><span lang=3DEN-US> spring-bounces@ietf.org =
[mailto:spring-bounces@ietf.org] <b>On Behalf Of </b>James =
Guichard<br><b>Sent:</b> Wednesday, July 15, 2020 7:17 PM<br><b>To:</b> =
spring@ietf.org<br><b>Cc:</b> spring-chairs@ietf.org<br><b>Subject:</b> =
[spring] WG Adoption Call for =
draft-dong-spring-sr-for-enhanced-vpn<o:p></o:p></span></p></div></div><p=
 class=3DMsoNormal><span lang=3DEN-US><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US>Dear WG:<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US>This email begins a 2 week WG =
adoption call for <a =
href=3D"https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhance=
d-vpn/">https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhance=
d-vpn/</a> ending Wednesday 29<sup>th</sup> July 2020. =
<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US>Please speak up if you support or oppose adopting this =
document into the WG. Please also provide comments/reasons for that =
support (or lack thereof). Silence will not be considered =
consent.<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US>Thanks!<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US>Jim, Joel &amp; Bruno<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></p></div></div></body></html>
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Dear WG,

I support the WG adoption. From operator perspective, it could be helpful to deploy network services with different SLA/SLO in SR network.

Best regards,
Tomo

---
************************************************************
Tomonobu Niwa
KDDI Corporation
TEL: +81-80-5074-9346
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************************************************************


-----Original Message-----
From: spring <spring-bounces@ietf.org> On Behalf Of James Guichard
Sent: Wednesday, July 15, 2020 8:17 PM
To: spring@ietf.org
Cc: spring-chairs@ietf.org
Subject: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn

Dear WG:

 

This email begins a 2 week WG adoption call for https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/ <https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/>  ending Wednesday 29th July 2020. 

 

Please speak up if you support or oppose adopting this document into the WG. Please also provide comments/reasons for that support (or lack thereof). Silence will not be considered consent.

 

Thanks!

 

Jim, Joel & Bruno

 

 

 



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Thread-Topic: [spring] Understanding the replication draft
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Subject: Re: [spring] WG Adoption Call for draft-raza-spring-sr-policy-yang
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Support

Sent from my iPhone

> On Jul 13, 2020, at 8:38 AM, James Guichard <james.n.guichard@futurewei.co=
m> wrote:
>=20
> =EF=BB=BF
> Dear WG:
> =20
> This email begins a 2 week WG adoption call for https://datatracker.ietf.o=
rg/doc/draft-raza-spring-sr-policy-yang/ ending Monday 27th July 2020.
> =20
> Please speak up if you support or oppose adopting this document into the W=
G. Please also provide comments/reasons for that support (or lack thereof). S=
ilence will not be considered consent.
> =20
> Thanks!
> =20
> Jim, Joel & Bruno
> =20
> =20
> =20
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring

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<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charset=3D=
utf-8"></head><body dir=3D"auto">Support<br><br><div dir=3D"ltr">Sent from m=
y iPhone</div><div dir=3D"ltr"><br><blockquote type=3D"cite">On Jul 13, 2020=
, at 8:38 AM, James Guichard &lt;james.n.guichard@futurewei.com&gt; wrote:<b=
r><br></blockquote></div><blockquote type=3D"cite"><div dir=3D"ltr">=EF=BB=BF=


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<div class=3D"WordSection1">
<p class=3D"MsoNormal">Dear WG:<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">This email begins a 2 week WG adoption call for <a hr=
ef=3D"https://datatracker.ietf.org/doc/draft-raza-spring-sr-policy-yang/">
https://datatracker.ietf.org/doc/draft-raza-spring-sr-policy-yang/</a> endin=
g Monday 27<sup>th</sup> July 2020.
<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Please speak up if you support or oppose adopting thi=
s document into the WG. Please also provide comments/reasons for that suppor=
t (or lack thereof). Silence will not be considered consent.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Thanks!<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Jim, Joel &amp; Bruno<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>


<span>_______________________________________________</span><br><span>spring=
 mailing list</span><br><span>spring@ietf.org</span><br><span>https://www.ie=
tf.org/mailman/listinfo/spring</span><br></div></blockquote></body></html>=

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In-Reply-To: <09efee93b5a04b188fd5d111ddfa5dfb@huawei.com>
From: Rishabh Parekh <rishabhp@gmail.com>
Date: Thu, 16 Jul 2020 09:41:31 -0700
Message-ID: <CABjMoXZJR7mm8hEx8-sMnM-zffz+8WjnTrHtWHkyn8nV3q+J=Q@mail.gmail.com>
To: "Xiejingrong (Jingrong)" <xiejingrong@huawei.com>
Cc: "spring@ietf.org" <spring@ietf.org>, "pim@ietf.org" <pim@ietf.org>
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Subject: Re: [spring] Understanding the replication draft
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Jingrong,
Your understanding is essentially correct. Think of a Replication function
at a node represented by the function portion of SRV6 SID with Replication
context either in arg or in the function itself. In the simplest case,as
you illustrated, replication to a downstream node is just constructing a
SRv6 SID with downstream locator + downstream replication function +
replication context (optional) and putting it in the DA of IPv6 packet. If
the downstream node is remote and the packet has to take a specific path
(not the IGP shortest path) to the node, the downstream replication SID
will be somewhere in SRH.

-Rishabh

On Thu, Jul 16, 2020 at 3:45 AM Xiejingrong (Jingrong) <
xiejingrong@huawei.com> wrote:

> (Though it is in a PIM WG draft (cc=E2=80=99ed), but the terminologies in=
 RFC8402
> are used and are the key to understand, so I would  expect points from th=
e
> SPRING WG).
>
>
>
> Hi Rishabh,
>
>
>
> Thanks for your response!
>
>
>
> Let me try to understand the applicability of SRv6 first, and move to the
> other points afterwards.
>
>
>
> I read the appendix A.1 in <draft-voyer-pim-sr-p2mp-policy-02>, and still
> have difficulty to understand the processing of multicast packet.
>
>
>
>    o  R2, as Leaf, performs NEXT operation, pops T-SID1 label and
>
>       delivers the payload.  For replication to R6, R2 performs a PUSH
>
>       operation of N-SID6, to send <N-SID6,T-SID1> label stack to R3.
>
>       R3 is the penultimate hop for N-SID6; it performs penultimate hop
>
>       popping, which corresponds to the NEXT operation and the packet is
>
>       then sent to R6 with <T-SID1> in the label stack.  For replication
>
>       to R7, R2 performs a PUSH operation of N-SID7, to send
>
>       <N-SID7,T-SID1> label stack to R4, one of IGP ECMP nexthops
>
>       towards R7.  R4 is the penultimate hop for N-SID6; it performs
>
>       penultimate hop popping, which corresponds to the NEXT operation
>
>       and the packet is then sent to R7 with <T-SID1> in the label
>
>       stack.
>
>
>
> When considering SRv6, The =E2=80=9CPUSH operation of N-SID6=E2=80=9D and=
 the =E2=80=9CPUSH
> operation of N-SID7=E2=80=9D are not clear to me.
>
>
>
> Seems that <N-SID6,T-SID1> and <N-SID7,T-SID1> are only for SR-MPLS, wher=
e
> T-SID1 is locally meaningful, and N-SID is globally reachable.
>
>
>
> I try to understand what=E2=80=99s the shape of each packet =E2=80=93 pkt=
12, pkt23, pkt36,
> pkt25, pkt47 in this example when using SRv6.
>
>
>
>                     R3----(pkt36)----R6
>
>                     /
>
>                  (pkt23)
>
>                   /
>
> R1----(pkt12)----R2----(pkt24)----R4----(pkt47)----R7
>
>
>
> And this is my assumption:
>
> Pkt12: (SA=3DR1, DA=3DR2_RepSID) (C-multicast pkt)
>
> Pkt23/Pkt36: (SA=3DR1, DA=3DR6_RepSID) (C-multicast pkt)
>
> Pkt24/Pkt47: (SA=3DR1, DA=3DR7_RepSID) (C-multicast pkt)
>
>
>
> Is that correct ?
>
>
>
> Thanks
>
> Jingrong
>
>
>
> *From:* Rishabh Parekh [mailto:rishabhp@gmail.com]
> *Sent:* Thursday, July 16, 2020 4:46 AM
> *To:* Xiejingrong (Jingrong) <xiejingrong@huawei.com>
> *Cc:* Jeff Tantsura <jefftant.ietf@gmail.com>; Dhruv Dhody <
> dhruv.ietf@gmail.com>; bruno.decraene@orange.com; spring@ietf.org;
> Alexander Vainshtein <Alexander.Vainshtein@rbbn.com>
> *Subject:* Re: [spring] Understanding the replication draft
>
>
>
> Jingrong,
>
>
>
> Replies inline.
>
>
>
> 1)       About the distinction of Replication-ID and Replication-SID, and
> their usage.
>
> If there is an SID block specially reserved for the P2MP Transport on eac=
h
> of the Replication Node, and such SID block (on each Replication Node) is
> advertised through west-east protocol like IGP/BGP,
>
> and then the north-south controller (like PCE) can use the
> =E2=80=9CReplication-ID=E2=80=9D and =E2=80=9CNode-ID=E2=80=9D only, but =
don=E2=80=99t need to use
> =E2=80=9CReplication-SID=E2=80=9D when populating the =E2=80=9CTree=E2=80=
=9D information to each
> =E2=80=9CReplication Node=E2=80=9D ?
>
> In that way, the Controller doesn=E2=80=99t need to allocate (and manage)=
 each of
> the Replication-SID (Say 1000 Replication-SID)  for  each Replication Nod=
e
> (Say 100 nodes).
>
>
>
> As we try to make the distinction clear in the draft, Replication segment
> is a logical segment that needs to be explicitly instantiated on the node
> either by PCE or by some other mechanism (maybe local config?). The
> Replication SID has to be assigned when the Replication segment (with a
> Replication-ID) is created on the node. Note Replication Segments can be
> created and deleted over time. and So, there is no pre-allocated block of
> Replication SIDs that can be announced in IGP or BGP. Effectively, the
> entity managing Replication segments has to manage the Replication SIDs.
>
>
>
> 2)       About the Replication Segment illustration.
>
> The rev-04 add a section =E2=80=9CIllustration of a Replication Segment=
=E2=80=9D in
> appendix, it is very clear and useful.
>
> To me, the =E2=80=9CReplication State=E2=80=9D is more like a =E2=80=9Cfo=
rwarding state=E2=80=9D, and I
> think it will be helpful to understand the whole solution if:
>
> a) there is a description/Illustration about the building procedure of th=
e
> =E2=80=9Cforwarding state=E2=80=9D ---- What=E2=80=99s the information ea=
ch Replication Node
> receives from the controller, and how each node builds its own forwarding
> state.
>
> b) there is a description/Illustration about the processing of multicast
> packet on the whole path of the P2MP tree.
>
>
>
> Illustrations of how packets and handed on a P2MP tree built by stitching
> Replication segments have been added in latest revision 02 of PIM WG draf=
t:
> https://datatracker.ietf.org/doc/draft-voyer-pim-sr-p2mp-policy/
>
> We have drafts on PCEP and BGP protocol extensions to instantiate
> Replication segments.
>
>
>
>
>
> 3)       About the applicability of SR-MPLS and SRv6.
>
> The rev-04 says =E2=80=9CReplication segments apply equally to both SR-MP=
LS and
> SRv6 instantiations of Segment Routing.=E2=80=9D.
>
> I am not sure if this document will cover SRv6 as well, but if it does,
> then I would like to see the same level of consideration as SR-MPLS.
>
>
>
>
>
>  Yes, we will have the same level of details for SRv6 Replication too.
>
>
>
> -Rishabh
>

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Content-Type: text/html; charset="UTF-8"
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<div dir=3D"ltr"><div>Jingrong,</div><div>Your understanding is essentially=
 correct. Think of a Replication function at a node represented by the func=
tion portion of SRV6 SID with Replication context either in arg or in the f=
unction itself. In the simplest case,as you illustrated, replication to a d=
ownstream node is just constructing a SRv6 SID with downstream locator + do=
wnstream replication function + replication context (optional) and putting =
it in the DA of IPv6 packet. If the downstream node is remote and the packe=
t has to take a specific path (not the IGP shortest path) to the node, the =
downstream replication SID will be somewhere in SRH.</div><div><br></div><d=
iv>-Rishabh<br></div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" =
class=3D"gmail_attr">On Thu, Jul 16, 2020 at 3:45 AM Xiejingrong (Jingrong)=
 &lt;<a href=3D"mailto:xiejingrong@huawei.com">xiejingrong@huawei.com</a>&g=
t; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0p=
x 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">





<div lang=3D"ZH-CN">
<div class=3D"gmail-m_8591792070523756513WordSection1">
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
;color:rgb(31,73,125)" lang=3D"EN-US">(Though it is in a PIM WG draft (cc=
=E2=80=99ed), but the terminologies in RFC8402 are used and are the key to =
understand, so I would =C2=A0expect points from the SPRING WG).<u></u><u></=
u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
;color:rgb(31,73,125)" lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
;color:rgb(31,73,125)" lang=3D"EN-US">Hi Rishabh,<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
;color:rgb(31,73,125)" lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
;color:rgb(31,73,125)" lang=3D"EN-US">Thanks for your response!<u></u><u></=
u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
;color:rgb(31,73,125)" lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
;color:rgb(31,73,125)" lang=3D"EN-US">Let me try to understand the applicab=
ility of SRv6 first, and move to the other points afterwards.<u></u><u></u>=
</span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
;color:rgb(31,73,125)" lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
;color:rgb(31,73,125)" lang=3D"EN-US">I read the appendix A.1 in &lt;draft-=
voyer-pim-sr-p2mp-policy-02&gt;, and still have difficulty to understand th=
e processing of multicast packet.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
;color:rgb(31,73,125)" lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0 o=C2=A0 R2, as Lea=
f, performs NEXT operation, pops T-SID1 label and<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 =
delivers the payload.=C2=A0 For replication to R6, R2 performs a PUSH<u></u=
><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 =
operation of N-SID6, to send &lt;N-SID6,T-SID1&gt; label stack to R3.<u></u=
><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 =
R3 is the penultimate hop for N-SID6; it performs penultimate hop<u></u><u>=
</u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 =
popping, which corresponds to the NEXT operation and the packet is<u></u><u=
></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 =
then sent to R6 with &lt;T-SID1&gt; in the label stack.=C2=A0 For replicati=
on<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 =
to R7, R2 performs a PUSH operation of N-SID7, to send<u></u><u></u></span>=
</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 =
&lt;N-SID7,T-SID1&gt; label stack to R4, one of IGP ECMP nexthops<u></u><u>=
</u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 =
towards R7.=C2=A0 R4 is the penultimate hop for N-SID6; it performs<u></u><=
u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 =
penultimate hop popping, which corresponds to the NEXT operation<u></u><u><=
/u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 =
and the packet is then sent to R7 with &lt;T-SID1&gt; in the label<u></u><u=
></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 =
stack.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
;color:rgb(31,73,125)" lang=3D"EN-US">When considering SRv6, The =E2=80=9CP=
USH operation of N-SID6=E2=80=9D and the =E2=80=9CPUSH operation of N-SID7=
=E2=80=9D are not clear to me.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
;color:rgb(31,73,125)" lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
;color:rgb(31,73,125)" lang=3D"EN-US">Seems that &lt;N-SID6,T-SID1&gt; and =
&lt;N-SID7,T-SID1&gt; are only for SR-MPLS, where T-SID1 is locally meaning=
ful, and N-SID is globally reachable.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
;color:rgb(31,73,125)" lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
;color:rgb(31,73,125)" lang=3D"EN-US">I try to understand what=E2=80=99s th=
e shape of each packet =E2=80=93 pkt12, pkt23, pkt36, pkt25, pkt47 in this =
example when using SRv6.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
;color:rgb(31,73,125)" lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
;color:rgb(31,73,125)" lang=3D"EN-US">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0 R3----(pkt36)----R6<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
;color:rgb(31,73,125)" lang=3D"EN-US">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=
=A0 /<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
;color:rgb(31,73,125)" lang=3D"EN-US">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 (pkt23)<u></u>=
<u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
;color:rgb(31,73,125)" lang=3D"EN-US">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 /=C2=A0=
=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
;color:rgb(31,73,125)" lang=3D"EN-US">R1----(pkt12)----R2----(pkt24)----R4-=
---(pkt47)----R7<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
;color:rgb(31,73,125)" lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
;color:rgb(31,73,125)" lang=3D"EN-US">And this is my assumption:<u></u><u><=
/u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
;color:rgb(31,73,125)" lang=3D"EN-US">Pkt12: (SA=3DR1, DA=3DR2_RepSID) (C-m=
ulticast pkt)<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
;color:rgb(31,73,125)" lang=3D"EN-US">Pkt23/Pkt36: (SA=3DR1, DA=3DR6_RepSID=
) (C-multicast pkt)<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
;color:rgb(31,73,125)" lang=3D"EN-US">Pkt24/Pkt47: (SA=3DR1, DA=3DR7_RepSID=
) (C-multicast pkt)<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
;color:rgb(31,73,125)" lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
;color:rgb(31,73,125)" lang=3D"EN-US">Is that correct ?
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
;color:rgb(31,73,125)" lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
;color:rgb(31,73,125)" lang=3D"EN-US">Thanks<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
;color:rgb(31,73,125)" lang=3D"EN-US">Jingrong<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:Consolas=
;color:rgb(31,73,125)" lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><b><span style=3D"font-size:11pt;font-family:&quot;C=
alibri&quot;,sans-serif" lang=3D"EN-US">From:</span></b><span style=3D"font=
-size:11pt;font-family:&quot;Calibri&quot;,sans-serif" lang=3D"EN-US"> Rish=
abh Parekh [mailto:<a href=3D"mailto:rishabhp@gmail.com" target=3D"_blank">=
rishabhp@gmail.com</a>]
<br>
<b>Sent:</b> Thursday, July 16, 2020 4:46 AM<br>
<b>To:</b> Xiejingrong (Jingrong) &lt;<a href=3D"mailto:xiejingrong@huawei.=
com" target=3D"_blank">xiejingrong@huawei.com</a>&gt;<br>
<b>Cc:</b> Jeff Tantsura &lt;<a href=3D"mailto:jefftant.ietf@gmail.com" tar=
get=3D"_blank">jefftant.ietf@gmail.com</a>&gt;; Dhruv Dhody &lt;<a href=3D"=
mailto:dhruv.ietf@gmail.com" target=3D"_blank">dhruv.ietf@gmail.com</a>&gt;=
; <a href=3D"mailto:bruno.decraene@orange.com" target=3D"_blank">bruno.decr=
aene@orange.com</a>; <a href=3D"mailto:spring@ietf.org" target=3D"_blank">s=
pring@ietf.org</a>; Alexander Vainshtein &lt;<a href=3D"mailto:Alexander.Va=
inshtein@rbbn.com" target=3D"_blank">Alexander.Vainshtein@rbbn.com</a>&gt;<=
br>
<b>Subject:</b> Re: [spring] Understanding the replication draft<u></u><u><=
/u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<div>
<div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Jingrong,<u></u><u></u></span><=
/p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Replies inline.<u></u><u></u></=
span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<div>
<blockquote style=3D"border-color:currentcolor currentcolor currentcolor rg=
b(204,204,204);border-style:none none none solid;border-width:medium medium=
 medium 1pt;padding:0cm 0cm 0cm 6pt;margin-left:4.8pt;margin-right:0cm">
<div>
<div>
<p style=3D"margin-left:18pt"><span style=3D"font-size:10.5pt;font-family:&=
quot;Calibri&quot;,sans-serif;color:rgb(31,73,125)" lang=3D"EN-US">1)</span=
><span style=3D"font-size:7pt;font-family:&quot;Times New Roman&quot;,serif=
;color:rgb(31,73,125)" lang=3D"EN-US">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0
</span><span style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,sans=
-serif;color:rgb(31,73,125)" lang=3D"EN-US">About the distinction of Replic=
ation-ID and Replication-SID, and their usage.</span><span lang=3D"EN-US"><=
u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:rgb(31,73,125)" lang=3D"EN-US">If there is an =
SID block specially reserved for the P2MP Transport on each of the Replicat=
ion
 Node, and such SID block (on each Replication Node) is advertised through =
west-east protocol like IGP/BGP,
</span><span lang=3D"EN-US"><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:rgb(31,73,125)" lang=3D"EN-US">and then the no=
rth-south controller (like PCE) can use the =E2=80=9CReplication-ID=E2=80=
=9D and =E2=80=9CNode-ID=E2=80=9D
 only, but don=E2=80=99t need to use =E2=80=9CReplication-SID=E2=80=9D when=
 populating the =E2=80=9CTree=E2=80=9D information to each =E2=80=9CReplica=
tion Node=E2=80=9D ?</span><span lang=3D"EN-US"><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:rgb(31,73,125)" lang=3D"EN-US">In that way, th=
e Controller doesn=E2=80=99t need to allocate (and manage) each of the Repl=
ication-SID
 (Say 1000 Replication-SID)=C2=A0 for=C2=A0 each Replication Node (Say 100 =
nodes).</span><span lang=3D"EN-US"><u></u><u></u></span></p>
</div>
</div>
</blockquote>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US">As we try to make the distincti=
on clear in the draft, Replication segment is a logical segment that needs =
to be explicitly instantiated on the node either by PCE or by some other me=
chanism (maybe local config?). The Replication
 SID has to be assigned when the Replication segment (with a Replication-ID=
) is created on the node. Note Replication Segments can be created and dele=
ted over time. and So, there is no pre-allocated block of Replication SIDs =
that can be announced in IGP or
 BGP. Effectively, the entity managing Replication segments has to manage t=
he Replication SIDs.<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0<u></u><u></u></span></p>
</div>
<blockquote style=3D"border-color:currentcolor currentcolor currentcolor rg=
b(204,204,204);border-style:none none none solid;border-width:medium medium=
 medium 1pt;padding:0cm 0cm 0cm 6pt;margin-left:4.8pt;margin-right:0cm">
<div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:rgb(31,73,125)" lang=3D"EN-US">2)</span><span =
style=3D"font-size:7pt;font-family:&quot;Times New Roman&quot;,serif;color:=
rgb(31,73,125)" lang=3D"EN-US">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0
</span><span style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,sans=
-serif;color:rgb(31,73,125)" lang=3D"EN-US">About the Replication Segment i=
llustration.</span><span lang=3D"EN-US">
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:rgb(31,73,125)" lang=3D"EN-US">The rev-04 add =
a section =E2=80=9CIllustration of a Replication Segment=E2=80=9D in append=
ix, it is very
 clear and useful.</span><span lang=3D"EN-US"><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:rgb(31,73,125)" lang=3D"EN-US">To me, the =E2=
=80=9CReplication State=E2=80=9D is more like a =E2=80=9Cforwarding state=
=E2=80=9D, and I think it will
 be helpful to understand the whole solution if:</span><span lang=3D"EN-US"=
><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:rgb(31,73,125)" lang=3D"EN-US">a) there is a d=
escription/Illustration about the building procedure of the =E2=80=9Cforwar=
ding
 state=E2=80=9D ---- What=E2=80=99s the information each Replication Node r=
eceives from the controller, and how each node builds its own forwarding st=
ate.</span><span lang=3D"EN-US"><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:rgb(31,73,125)" lang=3D"EN-US">b) there is a d=
escription/Illustration about the processing of multicast packet on the
 whole path of the P2MP tree.</span><span lang=3D"EN-US"><u></u><u></u></sp=
an></p>
</div>
</div>
</blockquote>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Illustrations of how packets an=
d handed on a P2MP tree built by stitching Replication segments have been a=
dded in latest revision 02 of PIM WG draft:
<a href=3D"https://datatracker.ietf.org/doc/draft-voyer-pim-sr-p2mp-policy/=
" target=3D"_blank">https://datatracker.ietf.org/doc/draft-voyer-pim-sr-p2m=
p-policy/</a><u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US">We have drafts on PCEP and BGP =
protocol extensions to instantiate Replication segments.<u></u><u></u></spa=
n></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0<u></u><u></u></span></p>
</div>
<blockquote style=3D"border-color:currentcolor currentcolor currentcolor rg=
b(204,204,204);border-style:none none none solid;border-width:medium medium=
 medium 1pt;padding:0cm 0cm 0cm 6pt;margin-left:4.8pt;margin-right:0cm">
<div>
<div>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:rgb(31,73,125)" lang=3D"EN-US">=C2=A0</span><s=
pan lang=3D"EN-US"><u></u><u></u></span></p>
<p style=3D"margin-left:18pt"><span style=3D"font-size:10.5pt;font-family:&=
quot;Calibri&quot;,sans-serif;color:rgb(31,73,125)" lang=3D"EN-US">3)</span=
><span style=3D"font-size:7pt;font-family:&quot;Times New Roman&quot;,serif=
;color:rgb(31,73,125)" lang=3D"EN-US">=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0
</span><span style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,sans=
-serif;color:rgb(31,73,125)" lang=3D"EN-US">About the applicability of SR-M=
PLS and SRv6.</span><span lang=3D"EN-US"><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:rgb(31,73,125)" lang=3D"EN-US">The rev-04 says=
 =E2=80=9CReplication segments apply equally to both SR-MPLS and SRv6 insta=
ntiations
 of Segment Routing.=E2=80=9D.</span><span lang=3D"EN-US"><u></u><u></u></s=
pan></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:rgb(31,73,125)" lang=3D"EN-US">I am not sure i=
f this document will cover SRv6 as well, but if it does, then I would like
 to see the same level of consideration as SR-MPLS.</span><span lang=3D"EN-=
US"><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.5pt;font-family:&quot;Ca=
libri&quot;,sans-serif;color:rgb(31,73,125)" lang=3D"EN-US">=C2=A0</span><s=
pan lang=3D"EN-US"><u></u><u></u></span></p>
</div>
</div>
</blockquote>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US">=C2=A0Yes, we will have the sam=
e level of details for SRv6 Replication too.<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US">-Rishabh<u></u><u></u></span></=
p>
</div>
</div>
</div>
</div>
</div>

</blockquote></div>

--0000000000002819a505aa91b7b5--


From nobody Thu Jul 16 12:27:00 2020
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Dear Bruno Decraene,

The session(s) that you have requested have been scheduled.
Below is the scheduled session information followed by
the original request. 


    spring Session 1 (1:40 requested)
    Monday, 27 July 2020, Session I 1100-1240
    Room Name: Room 3 size: 3
    ---------------------------------------------


iCalendar: https://datatracker.ietf.org/meeting/108/sessions/spring.ics

Request Information:


---------------------------------------------------------
Working Group Name: Source Packet Routing in Networking
Area Name: Routing Area
Session Requester: Bruno Decraene


Number of Sessions: 1
Length of Session(s):  100 Minutes
Number of Attendees: 140
Conflicts to Avoid: 
 Chair Conflict: sfc lisp
 Technology Overlap: 6man mpls lsr idr pce rtgwg teas
 Key Participant Conflict: v6ops opsec





People who must be present:
  Bruno Decraene
  Martin Vigoureux

Resources Requested:

Special Requests:
  
---------------------------------------------------------



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From: "Gengxuesong (Geng Xuesong)" <gengxuesong@huawei.com>
To: James Guichard <james.n.guichard@futurewei.com>, "spring@ietf.org" <spring@ietf.org>
CC: "spring-chairs@ietf.org" <spring-chairs@ietf.org>
Thread-Topic: WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn
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Date: Fri, 17 Jul 2020 10:15:09 +0000
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Subject: Re: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn
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Hi WG,

I support the WG adoption.
The method introduced in the document is a reasonable extension to the sema=
ntics of SR SID, which could be used to meet specific requirements of some =
network scenarios.

Best Regards
Xuesong


From: spring [mailto:spring-bounces@ietf.org] On Behalf Of James Guichard
Sent: Wednesday, July 15, 2020 7:17 PM
To: spring@ietf.org
Cc: spring-chairs@ietf.org
Subject: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vp=
n

Dear WG:

This email begins a 2 week WG adoption call for https://datatracker.ietf.or=
g/doc/draft-dong-spring-sr-for-enhanced-vpn/ ending Wednesday 29th July 202=
0.

Please speak up if you support or oppose adopting this document into the WG=
. Please also provide comments/reasons for that support (or lack thereof). =
Silence will not be considered consent.

Thanks!

Jim, Joel & Bruno




--_000_e0b0cc6a5d0c499ca56b13e67f899726huaweicom_
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<p class=3D"MsoNormal" style=3D"line-height:150%"><span lang=3D"EN-US" styl=
e=3D"font-size:10.5pt;line-height:150%;color:#1F497D">Hi WG,<o:p></o:p></sp=
an></p>
<p class=3D"MsoNormal" style=3D"line-height:150%"><span lang=3D"EN-US" styl=
e=3D"font-size:10.5pt;line-height:150%;color:#1F497D"><o:p>&nbsp;</o:p></sp=
an></p>
<p class=3D"MsoNormal" style=3D"line-height:150%"><span lang=3D"EN-US" styl=
e=3D"font-size:10.5pt;line-height:150%;color:#1F497D">I support the WG adop=
tion.<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"line-height:150%"><span lang=3D"EN-US" styl=
e=3D"font-size:10.5pt;line-height:150%;color:#1F497D">The method introduced=
 in the document is a reasonable extension to the semantics of SR SID, whic=
h could be used to meet specific requirements
 of some network scenarios. <o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"line-height:150%"><span lang=3D"EN-US" styl=
e=3D"font-size:10.5pt;line-height:150%;color:#1F497D"><o:p>&nbsp;</o:p></sp=
an></p>
<p class=3D"MsoNormal" style=3D"line-height:150%"><span lang=3D"EN-US" styl=
e=3D"font-size:10.5pt;line-height:150%;color:#1F497D">Best Regards<o:p></o:=
p></span></p>
<p class=3D"MsoNormal" style=3D"line-height:150%"><span lang=3D"EN-US" styl=
e=3D"font-size:10.5pt;line-height:150%;color:#1F497D">Xuesong<o:p></o:p></s=
pan></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
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0cm 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US">From:</span></b><span lang=
=3D"EN-US"> spring [mailto:spring-bounces@ietf.org]
<b>On Behalf Of </b>James Guichard<br>
<b>Sent:</b> Wednesday, July 15, 2020 7:17 PM<br>
<b>To:</b> spring@ietf.org<br>
<b>Cc:</b> spring-chairs@ietf.org<br>
<b>Subject:</b> [spring] WG Adoption Call for draft-dong-spring-sr-for-enha=
nced-vpn<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Dear WG:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">This email begins a 2 week WG a=
doption call for
<a href=3D"https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanc=
ed-vpn/">
https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/</a>=
 ending Wednesday 29<sup>th</sup> July 2020.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Please speak up if you support =
or oppose adopting this document into the WG. Please also provide comments/=
reasons for that support (or lack thereof). Silence will not be considered =
consent.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Thanks!<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Jim, Joel &amp; Bruno<o:p></o:p=
></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
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From: "Kamran Raza (skraza)" <skraza@cisco.com>
To: "Eric Vyncke (evyncke)" <evyncke@cisco.com>, "spring@ietf.org" <spring@ietf.org>
CC: Robert Sparks <rjsparks@nostrum.com>, =?utf-8?B?TWlyb3NsYXYgS292w6HEjQ==?= <miroslav.kovac@pantheon.tech>, "Benoit Claise (bclaise)" <bclaise@cisco.com>
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Subject: Re: [spring] draft-raza-spring-srv6-yang has an XML syntax error breaking the YANG validation chain
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From: "Zafar Ali (zali)" <zali@cisco.com>
To: James Guichard <james.n.guichard@futurewei.com>, "spring@ietf.org" <spring@ietf.org>
CC: "spring-chairs@ietf.org" <spring-chairs@ietf.org>, "Zafar Ali (zali)" <zali@cisco.com>
Thread-Topic: [spring] WG Adoption Call for draft-raza-spring-sr-policy-yang
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Subject: Re: [spring] WG Adoption Call for draft-raza-spring-sr-policy-yang
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From: "Zafar Ali (zali)" <zali@cisco.com>
To: James Guichard <james.n.guichard@futurewei.com>, "spring@ietf.org" <spring@ietf.org>
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From: Takuya Miyasaka <ta-miyasaka@kddi-research.jp>
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Subject: Re: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn
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AS a coauthor, I support this adoption. From an operator perspective, 
the idea brought by this draft is useful for the efficient resource 
reservation.

Thanks,
Takuya

> Dear WG:
>
> This email begins a 2 week WG adoption call for 
> https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/ 
> ending Wednesday 29^th July 2020.
>
> Please speak up if you support or oppose adopting this document into 
> the WG. Please also provide comments/reasons for that support (or lack 
> thereof). Silence will not be considered consent.
>
> Thanks!
>
> Jim, Joel & Bruno
>
>
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring

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    <div>AS a coauthor, I support this adoption. From an operator
      perspective, the idea brought by this draft is useful for the
      efficient resource reservation.</div>
    <div><br>
    </div>
    <div>Thanks,<br>
      Takuya<br>
    </div>
    <br>
    <blockquote type="cite"
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        <p class="MsoNormal"><span style="mso-fareast-language:ZH-CN">This
            email begins a 2 week WG adoption call for
            <a
href="https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/"
              moz-do-not-send="true">
https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/</a>
            ending Wednesday 29<sup>th</sup> July 2020.
            <o:p></o:p></span></p>
        <p class="MsoNormal"><span style="mso-fareast-language:ZH-CN"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span style="mso-fareast-language:ZH-CN">Please
            speak up if you support or oppose adopting this document
            into the WG. Please also provide comments/reasons for that
            support (or lack thereof). Silence will not be considered
            consent.<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="mso-fareast-language:ZH-CN"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span style="mso-fareast-language:ZH-CN">Thanks!<o:p></o:p></span></p>
        <p class="MsoNormal"><span style="mso-fareast-language:ZH-CN"><o:p> </o:p></span></p>
        <p class="MsoNormal"><span style="mso-fareast-language:ZH-CN">Jim,
            Joel &amp; Bruno<o:p></o:p></span></p>
        <p class="MsoNormal"><o:p> </o:p></p>
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      <pre class="moz-quote-pre" wrap="">_______________________________________________
spring mailing list
<a class="moz-txt-link-abbreviated" href="mailto:spring@ietf.org">spring@ietf.org</a>
<a class="moz-txt-link-freetext" href="https://www.ietf.org/mailman/listinfo/spring">https://www.ietf.org/mailman/listinfo/spring</a>
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--=====_003_next=====--

--=====_002_next=====--

--=====_001_next=====--


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From: "Pengshuping (Peng Shuping)" <pengshuping@huawei.com>
To: "spring@ietf.org" <spring@ietf.org>
CC: "spring-chairs@ietf.org" <spring-chairs@ietf.org>
Thread-Topic: SPRING WG Agenda @IETF108
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Hi all,



The agenda for our virtual 108 meeting has been posted. Please let us know =
if any changes are needed.



https://www.ietf.org/proceedings/108/agenda/agenda-108-spring-00



To all presenters, please send your slides to spring-chairs@ietf.org<mailto=
:spring-chairs@ietf.org> no later than the Saturday July 25.



Thank you!



Best Regards,

Shuping


From: Pengshuping (Peng Shuping)
Sent: Sunday, June 28, 2020 9:56 PM
To: spring@ietf.org
Cc: spring-chairs@ietf.org
Subject: Presentation slot request in SPRING WG - IETF108

Hi all,

We have decided to use Google Form to collect presentation slot requests in=
 the SPRING WG for this IETF108. Please fill in your request in the followi=
ng Form.

https://docs.google.com/forms/d/e/1FAIpQLSeed9WSYsu5qlxNTOIzd49gFeZSlfny9C6=
xmB8ZxQTrERufyw/viewform
If there is any issue for you to access this Form, please send your request=
 directly to spring-chairs@ietf.org<mailto:spring-chairs@ietf.org>.

Thank you!

Best regards,
Shuping

--_000_4278D47A901B3041A737953BAA078ADE191A2B0EDGGEML532MBXchi_
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<div class=3D"WordSection1">
<p class=3D"MsoPlainText"><span lang=3D"EN-US">Hi all,<o:p></o:p></span></p=
>
<p class=3D"MsoPlainText"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoPlainText"><span lang=3D"EN-US">The agenda for our virtual 1=
08 meeting has been posted. Please let us know if any changes are needed.<o=
:p></o:p></span></p>
<p class=3D"MsoPlainText"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoPlainText"><span lang=3D"EN-US"><a href=3D"https://www.ietf.=
org/proceedings/108/agenda/agenda-108-spring-00">https://www.ietf.org/proce=
edings/108/agenda/agenda-108-spring-00</a><o:p></o:p></span></p>
<p class=3D"MsoPlainText"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoPlainText"><span lang=3D"EN-US">To all presenters, please se=
nd your slides to
<a href=3D"mailto:spring-chairs@ietf.org">spring-chairs@ietf.org</a> no lat=
er than the Saturday July 25.<o:p></o:p></span></p>
<p class=3D"MsoPlainText"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoPlainText"><span lang=3D"EN-US">Thank you! <o:p></o:p></span=
></p>
<p class=3D"MsoPlainText"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoPlainText"><span lang=3D"EN-US">Best Regards, <o:p></o:p></s=
pan></p>
<p class=3D"MsoPlainText"><span lang=3D"EN-US">Shuping <o:p></o:p></span></=
p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D"><o:p>&n=
bsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D"><o:p>&n=
bsp;</o:p></span></p>
<div style=3D"border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm =
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<p class=3D"MsoNormal" align=3D"left" style=3D"text-align:left"><b><span la=
ng=3D"EN-US" style=3D"font-size:11.0pt">From:</span></b><span lang=3D"EN-US=
" style=3D"font-size:11.0pt"> Pengshuping (Peng Shuping)
<br>
<b>Sent:</b> Sunday, June 28, 2020 9:56 PM<br>
<b>To:</b> spring@ietf.org<br>
<b>Cc:</b> spring-chairs@ietf.org<br>
<b>Subject:</b> Presentation slot request in SPRING WG - IETF108<o:p></o:p>=
</span></p>
</div>
</div>
<p class=3D"MsoNormal" align=3D"left" style=3D"text-align:left"><span lang=
=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Hi all,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">We have decided to use Google F=
orm to collect presentation slot requests in the SPRING WG for this IETF108=
. Please fill in your request in the following Form.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><a href=3D"https://docs.google.=
com/forms/d/e/1FAIpQLSeed9WSYsu5qlxNTOIzd49gFeZSlfny9C6xmB8ZxQTrERufyw/view=
form">https://docs.google.com/forms/d/e/1FAIpQLSeed9WSYsu5qlxNTOIzd49gFeZSl=
fny9C6xmB8ZxQTrERufyw/viewform</a><o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">If there is any issue for you t=
o access this Form, please send your request directly to
<a href=3D"mailto:spring-chairs@ietf.org">spring-chairs@ietf.org</a>. <o:p>=
</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Thank you!<o:p></o:p></span></p=
>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Best regards,<o:p></o:p></span>=
</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Shuping<o:p></o:p></span></p>
</div>
</div>
</body>
</html>

--_000_4278D47A901B3041A737953BAA078ADE191A2B0EDGGEML532MBXchi_--


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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/HQ0uM-2ckJ4iWhEx5Flueps9axc>
Subject: Re: [spring] WG Adoption Callfordraft-dong-spring-sr-for-enhanced-vpn
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<html><head>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dutf-8"><s=
tyle>body { line-height: 1.5; }blockquote { margin-top: 0px; margin-bottom:=
 0px; margin-left: 0.5em; }p { margin-top: 0px; margin-bottom: 0px; }div.Fo=
xDiv20200721111216620523 { }body { font-size: 10.5pt; font-family: =E5=BE=
=AE=E8=BD=AF=E9=9B=85=E9=BB=91; color: rgb(0, 0, 0); line-height: 1.5; }</s=
tyle></head><body>=0A=
<div><span></span><p class=3D"MsoNormal" style=3D"margin: 0cm 0cm 0.0001pt;=
 font-size: 12pt; font-family: =E5=AE=8B=E4=BD=93; line-height: normal;"><s=
pan lang=3D"EN-US" style=3D"font-size: 10.5pt; font-family: Calibri, sans-s=
erif; color: rgb(31, 73, 125);">Hi Ran,<o:p></o:p></span></p><p class=3D"Ms=
oNormal" style=3D"margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: =
=E5=AE=8B=E4=BD=93; line-height: normal;"><span lang=3D"EN-US" style=3D"fon=
t-size: 10.5pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);"=
>&nbsp;</span></p><p style=3D"margin: 0cm 0cm 0.0001pt; font-size: 12pt; fo=
nt-family: =E5=AE=8B=E4=BD=93; line-height: 17.15pt; background-image: init=
ial; background-attachment: initial; background-size: initial; background-o=
rigin: initial; background-clip: initial; background-position: initial; bac=
kground-repeat: initial;"><span lang=3D"EN-US" style=3D"font-size: 10.5pt; =
font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">Thank you very =
much for your interests in and comments on this draft.</span></p><p style=
=3D"margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: =E5=AE=8B=E4=BD=
=93; line-height: 17.15pt; background-image: initial; background-attachment=
: initial; background-size: initial; background-origin: initial; background=
-clip: initial; background-position: initial; background-repeat: initial;">=
<span lang=3D"EN-US" style=3D"font-size: 10.5pt; font-family: Calibri, sans=
-serif; color: rgb(31, 73, 125);"><br></span></p><p style=3D"margin: 0cm 0c=
m 0.0001pt; font-size: 12pt; font-family: =E5=AE=8B=E4=BD=93; line-height: =
17.15pt; background-image: initial; background-attachment: initial; backgro=
und-size: initial; background-origin: initial; background-clip: initial; ba=
ckground-position: initial; background-repeat: initial;"><span lang=3D"EN-U=
S" style=3D"font-size: 10.5pt; font-family: Calibri, sans-serif; color: rgb=
(31, 73, 125);">Yes, you are right that SR architecture supports resource r=
elated SIDs. So we can specify the resource related framework under SR arch=
itecture. &nbsp;This is the main purpose of this doc. RFC8402 supports&nbsp=
;</span><span style=3D"color: rgb(31, 73, 125); font-family: Calibri, sans-=
serif; line-height: 22.8667px; font-size: 10.5pt; background-color: transpa=
rent;">resource related SIDs, but doesn't &nbsp;define them, which are defi=
ned in this doc.</span></p><p style=3D"margin: 0cm 0cm 0.0001pt; font-size:=
 12pt; font-family: =E5=AE=8B=E4=BD=93; line-height: 17.15pt; background-im=
age: initial; background-attachment: initial; background-size: initial; bac=
kground-origin: initial; background-clip: initial; background-position: ini=
tial; background-repeat: initial;"><span lang=3D"EN-US" style=3D"font-size:=
 10.5pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);"><br></=
span></p><p style=3D"margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family=
: =E5=AE=8B=E4=BD=93; line-height: 17.15pt; background-image: initial; back=
ground-attachment: initial; background-size: initial; background-origin: in=
itial; background-clip: initial; background-position: initial; background-r=
epeat: initial;"><span lang=3D"EN-US" style=3D"font-size: 10.5pt; font-fami=
ly: Calibri, sans-serif; color: rgb(31, 73, 125);">However, I am afraid I c=
an not agree with you that this doc is mainly to manage and maintain virtua=
l network resources. &nbsp;T</span><span style=3D"color: rgb(31, 73, 125); =
font-family: Calibri, sans-serif; line-height: 22.8667px; font-size: 10.5pt=
; background-color: transparent;">he concept and mechanism of resource-awar=
eness SID is introduced in this doc to enrich the&nbsp;</span><span style=
=3D"color: rgb(31, 73, 125); font-family: Calibri, sans-serif; line-height:=
 22.8667px; font-size: 10.5pt; background-color: transparent;">semantics of=
 SR SID and to enhance the SR architecture. Thanks to its flexibility and e=
xtensibility.</span></p><p style=3D"margin: 0cm 0cm 0.0001pt; font-size: 12=
pt; font-family: =E5=AE=8B=E4=BD=93; line-height: 17.15pt; background-image=
: initial; background-attachment: initial; background-size: initial; backgr=
ound-origin: initial; background-clip: initial; background-position: initia=
l; background-repeat: initial;"><span lang=3D"EN-US" style=3D"font-size: 10=
.5pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);"><span sty=
le=3D"line-height: 22.8667px;">Resource related SIDs introduced in this doc=
 can be used to construct virtual networks, resource isolated pathes, dedic=
ated queques in one node and so on, which depends on the application scenar=
ios.&nbsp;</span></span></p><p style=3D"margin: 0cm 0cm 0.0001pt; font-size=
: 12pt; font-family: =E5=AE=8B=E4=BD=93; line-height: 17.15pt; background-i=
mage: initial; background-attachment: initial; background-size: initial; ba=
ckground-origin: initial; background-clip: initial; background-position: in=
itial; background-repeat: initial;"><span lang=3D"EN-US" style=3D"font-size=
: 10.5pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);"><span=
 style=3D"line-height: 22.8667px;"><br></span></span></p><p style=3D"margin=
: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: =E5=AE=8B=E4=BD=93; line-=
height: 17.15pt; background-image: initial; background-attachment: initial;=
 background-size: initial; background-origin: initial; background-clip: ini=
tial; background-position: initial; background-repeat: initial;"><span lang=
=3D"EN-US" style=3D"font-size: 10.5pt; font-family: Calibri, sans-serif; co=
lor: rgb(31, 73, 125);">Since this draft belongs to SPRING WG, IMO it is co=
rrect that it focuses the semantics and functions associated with SR SIDs. =
The identifier and mechanisms in control plane could be discussed in the co=
rresponding protocol WGs as next step. Please pay attention to our related =
work in the protocol WGs and you are welcome to present your comments there=
. Thanks alot.</span></p><p style=3D"margin: 0cm 0cm 0.0001pt; font-size: 1=
2pt; font-family: =E5=AE=8B=E4=BD=93; line-height: 17.15pt; background-imag=
e: initial; background-attachment: initial; background-size: initial; backg=
round-origin: initial; background-clip: initial; background-position: initi=
al; background-repeat: initial;"><span lang=3D"EN-US" style=3D"font-size: 1=
0.5pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">&nbsp;</=
span></p><p class=3D"MsoNormal" style=3D"margin: 0cm 0cm 0.0001pt; font-siz=
e: 12pt; font-family: =E5=AE=8B=E4=BD=93; line-height: normal;"><span lang=
=3D"EN-US" style=3D"font-size: 10.5pt; font-family: Calibri, sans-serif; co=
lor: rgb(31, 73, 125);">Best regards,</span></p><p class=3D"MsoNormal" styl=
e=3D"margin: 0cm 0cm 0.0001pt; font-size: 12pt; font-family: =E5=AE=8B=E4=
=BD=93; line-height: normal;"><span lang=3D"EN-US" style=3D"font-size: 10.5=
pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);">Zhenqiang L=
i</span></p></div>=0A=
<div><br></div><hr style=3D"width: 210px; height: 1px;" color=3D"#b5c4df" s=
ize=3D"1" align=3D"left">=0A=
<div><span><div style=3D"MARGIN: 10px; FONT-FAMILY: verdana; FONT-SIZE: 10p=
t"><div>li_zhenqiang@hotmail.com</div></div></span></div>=0A=
<blockquote style=3D"margin-Top: 0px; margin-Bottom: 0px; margin-Left: 0.5e=
m"><div>&nbsp;</div><div style=3D"border:none;border-top:solid #B5C4DF 1.0p=
t;padding:3.0pt 0cm 0cm 0cm"><div style=3D"PADDING-RIGHT: 8px; PADDING-LEFT=
: 8px; FONT-SIZE: 12px;FONT-FAMILY:tahoma;COLOR:#000000; BACKGROUND: #efefe=
f; PADDING-BOTTOM: 8px; PADDING-TOP: 8px"><div><b>From:</b>&nbsp;<a href=3D=
"mailto:chen.ran@zte.com.cn">chen.ran@zte.com.cn</a></div><div><b>Date:</b>=
&nbsp;2020-07-20&nbsp;17:11</div><div><b>To:</b>&nbsp;<a href=3D"mailto:jie=
.dong@huawei.com">jie.dong@huawei.com</a></div><div><b>CC:</b>&nbsp;<a href=
=3D"mailto:james.n.guichard@futurewei.com">james.n.guichard</a>; <a href=3D=
"mailto:spring@ietf.org">spring</a>; <a href=3D"mailto:spring-chairs@ietf.o=
rg">spring-chairs</a></div><div><b>Subject:</b>&nbsp;Re: [spring]WG Adoptio=
n Callfordraft-dong-spring-sr-for-enhanced-vpn</div></div></div><div><div c=
lass=3D"FoxDiv20200721111216620523"><div class=3D"zcontentRow"><p style=3D"=
font-size:14px;font-family:arial;">Hi Jie,</p><p style=3D"box-sizing: borde=
r-box; margin-top: 0px; margin-bottom: 0px; white-space: normal; min-height=
: 14px; font-family: Arial, =E5=AE=8B=E4=BD=93, 'Microsoft Yahei', 'Lucida =
Grande', Verdana, Lucida, Helvetica, sans-serif; font-size: 16px; line-heig=
ht: 22.8571434020996px; outline: 0px !important; background-color: rgb(255,=
 255, 255);"><span style=3D"font-size: 14px;">IMO, the essence of the probl=
em is that&nbsp;an identifier should be introduced to manage and maintain v=
irtual network resources, &nbsp;not whether it is necessary to allocate res=
ource related SIDs , because the current SR architecture already supports r=
esource related SIDs allocation, there is no limit to that. For example, se=
rvice SID (compuated resource related), Node/Adjacency SID(topological reso=
urce related), etc. Especially, SRv6 SID encourages programming anything. C=
an we say that these SIDs have no resource meaning?</span></p><p style=3D"b=
ox-sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-space: no=
rmal; min-height: 14px; font-family: Arial, =E5=AE=8B=E4=BD=93, 'Microsoft =
Yahei', 'Lucida Grande', Verdana, Lucida, Helvetica, sans-serif; font-size:=
 16px; line-height: 22.8571434020996px; outline: 0px !important; background=
-color: rgb(255, 255, 255);"><span style=3D"font-size: 14px;">Thus, draft-d=
ong<span style=3D"font-size: 14px; font-family: Arial, =E5=AE=8B=E4=BD=93, =
'Microsoft Yahei', 'Lucida Grande', Verdana, Lucida, Helvetica, sans-serif;=
 line-height: 20px; background-color: rgb(255, 255, 255);">-spring-sr-for-e=
nhanced-vpn&nbsp;</span>does not introduce any new content on the existing =
SR architecture.</span><br></p><p style=3D"box-sizing: border-box; margin-t=
op: 0px; margin-bottom: 0px; white-space: normal; min-height: 14px; font-fa=
mily: Arial, =E5=AE=8B=E4=BD=93, 'Microsoft Yahei', 'Lucida Grande', Verdan=
a, Lucida, Helvetica, sans-serif; font-size: 16px; line-height: 22.85714340=
20996px; outline: 0px !important; background-color: rgb(255, 255, 255);"><b=
r style=3D"box-sizing: border-box; outline: 0px !important;"></p><p style=
=3D"box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-spac=
e: normal; min-height: 14px; font-family: Arial, =E5=AE=8B=E4=BD=93, 'Micro=
soft Yahei', 'Lucida Grande', Verdana, Lucida, Helvetica, sans-serif; font-=
size: 16px; line-height: 22.8571434020996px; outline: 0px !important; backg=
round-color: rgb(255, 255, 255);"><span style=3D"font-size: 14px;">For iden=
tifier to manage and maintain virtual network resources, draft-peng-teas-ne=
twork-slicing firstly to introduce a new identifier (AII) in the network to=
 unifiedly identify the topology, computing and storage resource. Before th=
at, other existing identities only focus on topology resources.</span></p><=
p style=3D"font-size:14px;font-family:arial;"><br></p><p style=3D"box-sizin=
g: border-box; margin-top: 0px; margin-bottom: 0px; white-space: normal; mi=
n-height: 14px; font-family: Arial, =E5=AE=8B=E4=BD=93, 'Microsoft Yahei', =
'Lucida Grande', Verdana, Lucida, Helvetica, sans-serif; font-size: 16px; l=
ine-height: 22.8571434020996px; outline: 0px !important; background-color: =
rgb(255, 255, 255);"><span style=3D"font-size: 14px;">Just for topology rel=
ated resource, Segment Routing with MTR/Flex-algo/AII all support the divis=
ion of multiple topological resource, and already support allocatoin of SID=
 per MT-ID/algorithm/AII. Especially for link resource, the bandwidth of th=
e same link can be subdivided into multiple resources.&nbsp;</span></p><p s=
tyle=3D"box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-=
space: normal; min-height: 14px; font-family: Arial, =E5=AE=8B=E4=BD=93, 'M=
icrosoft Yahei', 'Lucida Grande', Verdana, Lucida, Helvetica, sans-serif; f=
ont-size: 16px; line-height: 22.8571434020996px; outline: 0px !important; b=
ackground-color: rgb(255, 255, 255);"><span style=3D"font-size: 14px;">If t=
hese subdivided resources exist in the form of sub-interface resources, L2-=
bundles(rfc8668) provides the method to assign adjacency-SID for members, I=
n other words, the allocation of member adjacency SID has already been awar=
e of these subdivided resources, each sub-interface has its own link attrib=
utes (bandwidth, delay, etc.).&nbsp;</span></p><p style=3D"box-sizing: bord=
er-box; margin-top: 0px; margin-bottom: 0px; white-space: normal; min-heigh=
t: 14px; font-family: Arial, =E5=AE=8B=E4=BD=93, 'Microsoft Yahei', 'Lucida=
 Grande', Verdana, Lucida, Helvetica, sans-serif; font-size: 16px; line-hei=
ght: 22.8571434020996px; outline: 0px !important; background-color: rgb(255=
, 255, 255);"><span style=3D"font-size: 14px;">If there are no sub-interfac=
e, the link can also be shared by multiple virtual networks to allocate mul=
tiple adjacency SIDs. Under the existing SR architecture, draft-peng-teas-n=
etwork-slicing and draft-peng-lsr-algorithm-related-adjacency-sid have alre=
ady described the allocation of adjacency SID per AII and algorithm.</span>=
</p><p style=3D"font-size:14px;font-family:arial;"><br></p><p style=3D"box-=
sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-space: norma=
l; min-height: 14px; font-family: Arial, =E5=AE=8B=E4=BD=93, 'Microsoft Yah=
ei', 'Lucida Grande', Verdana, Lucida, Helvetica, sans-serif; font-size: 16=
px; line-height: 22.8571434020996px; outline: 0px !important; background-co=
lor: rgb(255, 255, 255);"><span style=3D"font-size: 14px;">Obviously, the a=
bove SR with MTR/Flex-algo/AII are all complete solutions, including contro=
l plane extensions and forwarding mechanisms, and they need not make any ch=
anges to the SR architecture.</span></p><p style=3D"box-sizing: border-box;=
 margin-top: 0px; margin-bottom: 0px; white-space: normal; min-height: 14px=
; font-family: Arial, =E5=AE=8B=E4=BD=93, 'Microsoft Yahei', 'Lucida Grande=
', Verdana, Lucida, Helvetica, sans-serif; font-size: 16px; line-height: 22=
.8571434020996px; outline: 0px !important; background-color: rgb(255, 255, =
255);"><span style=3D"font-size: 14px;">I wonder according to draft-dong<sp=
an style=3D"font-family: Arial, =E5=AE=8B=E4=BD=93, 'Microsoft Yahei', 'Luc=
ida Grande', Verdana, Lucida, Helvetica, sans-serif; line-height: 20px; bac=
kground-color: rgb(255, 255, 255);">-spring-sr-for-enhanced-vpn</span>, wha=
t can we do under its guidance, or what we can't do without this draft?&nbs=
p;</span></p><p style=3D"box-sizing: border-box; margin-top: 0px; margin-bo=
ttom: 0px; white-space: normal; min-height: 14px; font-family: Arial, =E5=
=AE=8B=E4=BD=93, 'Microsoft Yahei', 'Lucida Grande', Verdana, Lucida, Helve=
tica, sans-serif; font-size: 16px; line-height: 22.8571434020996px; outline=
: 0px !important; background-color: rgb(255, 255, 255);"><span style=3D"fon=
t-size: 14px;"><br></span></p><p style=3D"box-sizing: border-box; margin-to=
p: 0px; margin-bottom: 0px; white-space: normal; min-height: 14px; font-fam=
ily: Arial, =E5=AE=8B=E4=BD=93, 'Microsoft Yahei', 'Lucida Grande', Verdana=
, Lucida, Helvetica, sans-serif; font-size: 16px; line-height: 22.857143402=
0996px; outline: 0px !important; background-color: rgb(255, 255, 255);"><sp=
an style=3D"font-size: 14px;">Regards,</span></p><p style=3D"box-sizing: bo=
rder-box; margin-top: 0px; margin-bottom: 0px; white-space: normal; min-hei=
ght: 14px; font-family: Arial, =E5=AE=8B=E4=BD=93, 'Microsoft Yahei', 'Luci=
da Grande', Verdana, Lucida, Helvetica, sans-serif; font-size: 16px; line-h=
eight: 22.8571434020996px; outline: 0px !important; background-color: rgb(2=
55, 255, 255);"><span style=3D"font-size: 14px;">Ran</span></p><p style=3D"=
box-sizing: border-box; margin-top: 0px; margin-bottom: 0px; white-space: n=
ormal; min-height: 14px; font-family: Arial, =E5=AE=8B=E4=BD=93, 'Microsoft=
 Yahei', 'Lucida Grande', Verdana, Lucida, Helvetica, sans-serif; font-size=
: 16px; line-height: 22.8571434020996px; outline: 0px !important; backgroun=
d-color: rgb(255, 255, 255);"><span style=3D"font-size: 14px;"><br></span><=
/p><div><div class=3D"zhistoryRow" style=3D"display:block"><div class=3D"zh=
istoryDes" style=3D"width: 100%; height: 28px; line-height: 28px; backgroun=
d-color: #E0E5E9; color: #1388FF; text-align: center;" language-data=3D"His=
toryOrgTxt">=E5=8E=9F=E5=A7=8B=E9=82=AE=E4=BB=B6</div><div id=3D"zwriteHist=
oryContainer"><div class=3D"control-group zhistoryPanel"><div class=3D"zhis=
toryHeader" style=3D"padding: 8px; background-color: #F5F6F8;"><div><strong=
 language-data=3D"HistorySenderTxt">=E5=8F=91=E4=BB=B6=E4=BA=BA=EF=BC=9A</s=
trong><span class=3D"zreadUserName">Dongjie(Jimmy) &lt;jie.dong@huawei.com&=
gt;</span></div><div><strong language-data=3D"HistoryTOTxt">=E6=94=B6=E4=BB=
=B6=E4=BA=BA=EF=BC=9A</strong><span class=3D"zreadUserName" style=3D"displa=
y: inline;">=E9=99=88=E7=84=B600080434;james.n.guichard@futurewei.com &lt;j=
ames.n.guichard@futurewei.com&gt;;spring@ietf.org &lt;spring@ietf.org&gt;;<=
/span></div><div><strong language-data=3D"HistoryCCTxt">=E6=8A=84=E9=80=81=
=E4=BA=BA=EF=BC=9A</strong><span class=3D"zreadUserName" style=3D"display: =
inline;">spring-chairs@ietf.org &lt;spring-chairs@ietf.org&gt;;</span></div=
><div><strong language-data=3D"HistoryDateTxt">=E6=97=A5 =E6=9C=9F =EF=BC=
=9A</strong><span class=3D"">2020=E5=B9=B407=E6=9C=8816=E6=97=A5 19:50</spa=
n></div><div><strong language-data=3D"HistorySubjectTxt">=E4=B8=BB =E9=A2=
=98 =EF=BC=9A</strong><span class=3D"zreadTitle"><strong>RE: [spring]  WG A=
doption Callfordraft-dong-spring-sr-for-enhanced-vpn</strong></span></div><=
/div><div class=3D"zhistoryContent"><div><!--[if gte mso 9]><xml><o:shapede=
faults v:ext=3D"edit" spidmax=3D"1026" ></o:shapedefaults></xml><![endif]--=
><!--[if gte mso 9]><xml><o:shapelayout v:ext=3D"edit"><o:idmap v:ext=3D"ed=
it" data=3D"1" ></o:idmap></o:shapelayout></xml><![endif]--><div class=3D"W=
ordSection1"><p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size=
:10.5pt;font-family:&quot;Calibri&quot;,sans-serif;color:#1F497D">Hi Ran,<o=
:p></o:p></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"fo=
nt-size:10.5pt;font-family:&quot;Calibri&quot;,sans-serif;color:#1F497D"><o=
:p>&nbsp;</o:p></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" style=
=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,sans-serif;color:#1F49=
7D">Thanks for your comments. While I don=E2=80=99t quite get your point of=
 objection. &nbsp;Perhaps you have some misunderstanding about the relation=
ship of the=0A=
 drafts mentioned.<o:p></o:p></span></p><p class=3D"MsoNormal"><span lang=
=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,sans-s=
erif;color:#1F497D"><o:p>&nbsp;</o:p></span></p><p class=3D"MsoNormal"><spa=
n lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,=
sans-serif;color:#1F497D">RFC 8402 introduced the topology and service sema=
ntics of SR SID, this document proposed to add resource semantics to SIDs. =
Then MT or Flex-Algo=0A=
 are control plane mechanism for the distribution of topology-specific SIDs=
. The relationship with these documents are described in this draft.<o:p></=
o:p></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-si=
ze:10.5pt;font-family:&quot;Calibri&quot;,sans-serif;color:#1F497D">&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<o:p></o:p></span></p><p class=3D"=
MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot=
;Calibri&quot;,sans-serif;color:#1F497D">My reading of draft-peng in LSR an=
d TEAS is that they may provide an option of control plane extensions for t=
he resource-aware SIDs defined in this=0A=
 document, which just proves that the enhancement in this document is in th=
e right direction, and more work based on it could be done in relevant WGs.=
<o:p></o:p></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"=
font-size:10.5pt;font-family:&quot;Calibri&quot;,sans-serif;color:#1F497D">=
<o:p>&nbsp;</o:p></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" sty=
le=3D"font-size:10.5pt;font-family:&quot;Calibri&quot;,sans-serif;color:#1F=
497D">Thus my suggestion would be to have the SR enhancement adopted in SPR=
ING first, then more discussion about its control plane could happen in oth=
er=0A=
 WGs as the next step. &nbsp;<o:p></o:p></span></p><p class=3D"MsoNormal"><=
span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;Calibri&quo=
t;,sans-serif;color:#1F497D"><o:p>&nbsp;</o:p></span></p><p class=3D"MsoNor=
mal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&quot;Calib=
ri&quot;,sans-serif;color:#1F497D">Hope this helps.<o:p></o:p></span></p><p=
 class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-fa=
mily:&quot;Calibri&quot;,sans-serif;color:#1F497D"><o:p>&nbsp;</o:p></span>=
</p><p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;f=
ont-family:&quot;Calibri&quot;,sans-serif;color:#1F497D">Best regards,<o:p>=
</o:p></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-=
size:10.5pt;font-family:&quot;Calibri&quot;,sans-serif;color:#1F497D">Jie<o=
:p></o:p></span></p><p class=3D"MsoNormal"><a target=3D"_blank" name=3D"_Ma=
ilEndCompose"></a><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-famil=
y:&quot;Calibri&quot;,sans-serif;color:#1F497D"><o:p>&nbsp;</o:p></span></p=
><div style=3D"border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm=
 4.0pt"><div><div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;paddi=
ng:3.0pt 0cm 0cm 0cm"><p class=3D"MsoNormal"><strong><span lang=3D"EN-US" s=
tyle=3D"font-size:11.0pt;font-family:&quot;Calibri&quot;,sans-serif">From:<=
/span></strong><span lang=3D"EN-US" style=3D"font-size:11.0pt;font-family:&=
quot;Calibri&quot;,sans-serif"> spring [mailto:spring-bounces@ietf.org]<str=
ong>On Behalf Of </strong>chen.ran@zte.com.cn<br><strong>Sent:</strong> Thu=
rsday, July 16, 2020 5:20 PM<br><strong>To:</strong> james.n.guichard@futur=
ewei.com; spring@ietf.org<br><strong>Cc:</strong> spring-chairs@ietf.org<br=
><strong>Subject:</strong> Re: [spring] WG Adoption Call fordraft-dong-spri=
ng-sr-for-enhanced-vpn<o:p></o:p></span></p></div></div><p class=3D"MsoNorm=
al"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p><div><p><span lang=3D"=
EN-US" style=3D"font-family:&quot;Arial&quot;,sans-serif;background:white">=
Dear WG,</span><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&=
quot;Arial&quot;,sans-serif"><o:p></o:p></span></p><p style=3D"margin:0cm;m=
argin-bottom:.0001pt;line-height:17.15pt;background:white;box-sizing: borde=
r-box;min-height: 14px;outline: 0px !important"><span lang=3D"EN-US" style=
=3D"font-family:&quot;Arial&quot;,sans-serif">I don't support WG adoption.<=
o:p></o:p></span></p><p style=3D"margin:0cm;margin-bottom:.0001pt;line-heig=
ht:17.15pt;background:white;box-sizing: border-box;min-height: 14px;outline=
: 0px !important"><span lang=3D"EN-US" style=3D"font-family:&quot;Arial&quo=
t;,sans-serif">It is not a new idea for each Virtual Network to have its ow=
n SIDs.<o:p></o:p></span></p><p style=3D"margin:0cm;margin-bottom:.0001pt;l=
ine-height:17.15pt;background:white;box-sizing: border-box;min-height: 14px=
;outline: 0px !important"><span lang=3D"EN-US" style=3D"font-family:&quot;A=
rial&quot;,sans-serif">e.g. The earlist description of the SID be allocated=
 per flex-algorithm and related metric<o:p></o:p></span></p><p style=3D"mar=
gin:0cm;margin-bottom:.0001pt;line-height:17.15pt;background:white;box-sizi=
ng: border-box;min-height: 14px;outline: 0px !important"><span lang=3D"EN-U=
S" style=3D"font-family:&quot;Arial&quot;,sans-serif">&nbsp;information was=
 in draft-hegdeppsenak-isis-sr-flex-algo-00(2017.7.17) (now is draft-ietf-i=
sis-sr-flex-algo) .&nbsp;<o:p></o:p></span></p><p style=3D"margin:0cm;margi=
n-bottom:.0001pt;line-height:17.15pt;background:white;box-sizing: border-bo=
x;min-height: 14px;outline: 0px !important"><span lang=3D"EN-US" style=3D"f=
ont-family:&quot;Arial&quot;,sans-serif">The earlist description of the SID=
 be allocated per MT was in draft-filsfils-spring-segment-routing-04(2014.7=
.3)<o:p></o:p></span></p><p style=3D"margin:0cm;margin-bottom:.0001pt;line-=
height:17.15pt;background:white;box-sizing: border-box;min-height: 14px;out=
line: 0px !important"><span lang=3D"EN-US" style=3D"font-family:&quot;Arial=
&quot;,sans-serif">(now is RFC8402 ), and draft-peng-lsr-network-slicing-00=
(2019.2.25) describe the<o:p></o:p></span></p><p style=3D"margin:0cm;margin=
-bottom:.0001pt;line-height:17.15pt;background:white;box-sizing: border-box=
;min-height: 14px;outline: 0px !important"><span lang=3D"EN-US" style=3D"fo=
nt-family:&quot;Arial&quot;,sans-serif">SID be allocated per AII(alias alic=
e). &nbsp;For slice resources,<a href=3D"https://tools.ietf.org/html/draft-=
peng-teas-network-slicing-03" target=3D"_blank"><span style=3D"color:#337AB=
7">https://tools.ietf.org/html/draft-peng-teas-network-slicing-03</span></a=
>&nbsp;&nbsp;<o:p></o:p></span></p><p style=3D"margin:0cm;margin-bottom:.00=
01pt;line-height:17.15pt;background:white;box-sizing: border-box;min-height=
: 14px;outline: 0px !important"><span lang=3D"EN-US" style=3D"font-family:&=
quot;Arial&quot;,sans-serif">induced slice-id(AII) for slice resources mana=
gement, and can differentiate them (e.g. L2 link or L3 interface,<o:p></o:p=
></span></p><p style=3D"margin:0cm;margin-bottom:.0001pt;line-height:17.15p=
t;background:white;box-sizing: border-box;min-height: 14px;outline: 0px !im=
portant"><span lang=3D"EN-US" style=3D"font-family:&quot;Arial&quot;,sans-s=
erif">section 7 ), and&nbsp;<span style=3D"background:white">how to compute=
 SR-BE or SR-TE path according to AII combined with other criteria.</span><=
o:p></o:p></span></p><p style=3D"margin:0cm;margin-bottom:.0001pt;line-heig=
ht:17.15pt;background:white;box-sizing: border-box;min-height: 14px;outline=
: 0px !important"><span lang=3D"EN-US" style=3D"font-family:&quot;Arial&quo=
t;,sans-serif"><o:p>&nbsp;</o:p></span></p><p style=3D"margin:0cm;margin-bo=
ttom:.0001pt;line-height:17.15pt;background:white;box-sizing: border-box;mi=
n-height: 14px;outline: 0px !important"><span lang=3D"EN-US" style=3D"font-=
family:&quot;Arial&quot;,sans-serif">Regards,<o:p></o:p></span></p><p style=
=3D"margin:0cm;margin-bottom:.0001pt;line-height:17.15pt;background:white;b=
ox-sizing: border-box;min-height: 14px;outline: 0px !important"><span lang=
=3D"EN-US" style=3D"font-family:&quot;Arial&quot;,sans-serif">Ran<o:p></o:p=
></span></p><p><span lang=3D"EN-US" style=3D"font-size:10.5pt;font-family:&=
quot;Arial&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p><p><span lang=3D"E=
N-US" style=3D"font-family:&quot;Arial&quot;,sans-serif"><br><span style=3D=
"background:white">-----Original&nbsp;Message-----</span><br><span style=3D=
"background:white">From:&nbsp;spring&nbsp;&lt;<a href=3D"mailto:spring-boun=
ces@ietf.org" target=3D"_blank">spring-bounces@ietf.org</a>&gt;&nbsp;On&nbs=
p;Behalf&nbsp;Of&nbsp;James&nbsp;Guichard</span><br><span style=3D"backgrou=
nd:white">Sent:&nbsp;Wednesday,&nbsp;July&nbsp;15,&nbsp;2020&nbsp;8:17&nbsp=
;PM</span><br><span style=3D"background:white">To:&nbsp;<a href=3D"mailto:s=
pring@ietf.org" target=3D"_blank">spring@ietf.org</a></span><br><span style=
=3D"background:white">Cc:&nbsp;<a href=3D"mailto:spring-chairs@ietf.org" ta=
rget=3D"_blank">spring-chairs@ietf.org</a></span><br><span style=3D"backgro=
und:white">Subject:&nbsp;[spring]&nbsp;WG&nbsp;Adoption&nbsp;Call&nbsp;for&=
nbsp;draft-dong-spring-sr-for-enhanced-vpn</span><br><br><span style=3D"bac=
kground:white">Dear&nbsp;WG:</span><br><br><span style=3D"background:white"=
>&nbsp;&nbsp;</span><br><br><span style=3D"background:white">This&nbsp;emai=
l&nbsp;begins&nbsp;a&nbsp;2&nbsp;week&nbsp;WG&nbsp;adoption&nbsp;call&nbsp;=
for&nbsp;<a href=3D"https://datatracker.ietf.org/doc/draft-dong-spring-sr-f=
or-enhanced-vpn/" target=3D"_blank">https://datatracker.ietf.org/doc/draft-=
dong-spring-sr-for-enhanced-vpn/</a>&nbsp;&lt;<a href=3D"https://datatracke=
r.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/" target=3D"_blank">ht=
tps://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/</a>&g=
t;&nbsp;&nbsp;ending&nbsp;Wednesday&nbsp;29th&nbsp;July&nbsp;2020.&nbsp;&nb=
sp;</span><br><br><span style=3D"background:white">&nbsp;&nbsp;</span><br><=
br><span style=3D"background:white">Please&nbsp;speak&nbsp;up&nbsp;if&nbsp;=
you&nbsp;support&nbsp;or&nbsp;oppose&nbsp;adopting&nbsp;this&nbsp;document&=
nbsp;into&nbsp;the&nbsp;WG.&nbsp;Please&nbsp;also&nbsp;provide&nbsp;comment=
s/reasons&nbsp;for&nbsp;that&nbsp;support&nbsp;(or&nbsp;lack&nbsp;thereof).=
&nbsp;Silence&nbsp;will&nbsp;not&nbsp;be&nbsp;considered&nbsp;consent.</spa=
n><br><br><span style=3D"background:white">&nbsp;&nbsp;</span><br><br><span=
 style=3D"background:white">Thanks!</span><br><br><span style=3D"background=
:white">&nbsp;&nbsp;</span><br><br><span style=3D"background:white">Jim,&nb=
sp;Joel&nbsp;&amp;&nbsp;Bruno</span><br><br><span style=3D"background:white=
">&nbsp;&nbsp;</span><br><br><span style=3D"background:white">&nbsp;&nbsp;<=
/span><br><br><span style=3D"background:white">&nbsp;&nbsp;</span><br><br><=
br><span style=3D"background:white">_______________________________________=
________</span><br><span style=3D"background:white">spring&nbsp;mailing&nbs=
p;list</span><br><span style=3D"background:white"><a href=3D"mailto:spring@=
ietf.org" target=3D"_blank">spring@ietf.org</a></span></span><span lang=3D"=
EN-US" style=3D"font-size:10.5pt;font-family:&quot;Arial&quot;,sans-serif">=
<o:p></o:p></span></p><p><span lang=3D"EN-US" style=3D"font-size:10.5pt;fon=
t-family:&quot;Arial&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p></div></=
div></div></div></div></div></div></div></div><p><br></p></div></div></div>=
</blockquote>=0A=
</body></html>=

------=_001_NextPart342242128616_=------


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From: Vishnu Pavan Beeram <vishnupavan.ietf@gmail.com>
Date: Tue, 21 Jul 2020 08:59:46 -0500
Message-ID: <CAMoPOhkKgvNn5GLKvx7wzDOoACAPT=EeZNmsoCsc=2RTwHDpDg@mail.gmail.com>
To: James Guichard <james.n.guichard@futurewei.com>
Cc: "spring@ietf.org" <spring@ietf.org>, "spring-chairs@ietf.org" <spring-chairs@ietf.org>
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Subject: Re: [spring] WG Adoption Call for draft-raza-spring-sr-policy-yang
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I strongly support adoption of this draft -- it is an integral part of the
SR Policy toolkit.

-Pavan (as a co-author)

On Mon, Jul 13, 2020 at 10:38 AM James Guichard <
james.n.guichard@futurewei.com> wrote:

> Dear WG:
>
>
>
> This email begins a 2 week WG adoption call for
> https://datatracker.ietf.org/doc/draft-raza-spring-sr-policy-yang/ ending
> Monday 27th July 2020.
>
>
>
> Please speak up if you support or oppose adopting this document into the
> WG. Please also provide comments/reasons for that support (or lack
> thereof). Silence will not be considered consent.
>
>
>
> Thanks!
>
>
>
> Jim, Joel & Bruno
>
>
>
>
>
>
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
>

--000000000000e92b9705aaf4090b
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<div dir=3D"ltr"><div>I strongly support adoption of this draft -- it is an=
 integral part of the SR Policy toolkit.</div><div><br></div><div>-Pavan (a=
s a co-author)<br></div></div><br><div class=3D"gmail_quote"><div dir=3D"lt=
r" class=3D"gmail_attr">On Mon, Jul 13, 2020 at 10:38 AM James Guichard &lt=
;<a href=3D"mailto:james.n.guichard@futurewei.com">james.n.guichard@futurew=
ei.com</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"m=
argin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left=
:1ex">





<div lang=3D"EN-US">
<div>
<p class=3D"MsoNormal">Dear WG:<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">This email begins a 2 week WG adoption call for <a h=
ref=3D"https://datatracker.ietf.org/doc/draft-raza-spring-sr-policy-yang/" =
target=3D"_blank">
https://datatracker.ietf.org/doc/draft-raza-spring-sr-policy-yang/</a> endi=
ng Monday 27<sup>th</sup> July 2020.
<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">Please speak up if you support or oppose adopting th=
is document into the WG. Please also provide comments/reasons for that supp=
ort (or lack thereof). Silence will not be considered consent.<u></u><u></u=
></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">Thanks!<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">Jim, Joel &amp; Bruno<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
</div>

_______________________________________________<br>
spring mailing list<br>
<a href=3D"mailto:spring@ietf.org" target=3D"_blank">spring@ietf.org</a><br=
>
<a href=3D"https://www.ietf.org/mailman/listinfo/spring" rel=3D"noreferrer"=
 target=3D"_blank">https://www.ietf.org/mailman/listinfo/spring</a><br>
</blockquote></div>

--000000000000e92b9705aaf4090b--


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From: Ian Duncan <id.ciena@gmail.com>
Date: Tue, 21 Jul 2020 11:52:42 -0400
Message-ID: <CABe4717Z7kRB5_pCosy-2HcKYaVGe1DVXTaSfY97RHN4cM=n9w@mail.gmail.com>
To: James Guichard <james.n.guichard@futurewei.com>
Cc: "spring@ietf.org" <spring@ietf.org>, "spring-chairs@ietf.org" <spring-chairs@ietf.org>
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Subject: Re: [spring] WG Adoption Call for draft-raza-spring-sr-policy-yang
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Hello -

I support WG adoption. Look forward to our productive discussions on
refining the model.

Best .. Ian

On Mon, Jul 13, 2020 at 11:38 AM James Guichard <
james.n.guichard@futurewei.com> wrote:

> Dear WG:
>
>
>
> This email begins a 2 week WG adoption call for
> https://datatracker.ietf.org/doc/draft-raza-spring-sr-policy-yang/ ending
> Monday 27th July 2020.
>
>
>
> Please speak up if you support or oppose adopting this document into the
> WG. Please also provide comments/reasons for that support (or lack
> thereof). Silence will not be considered consent.
>
>
>
> Thanks!
>
>
>
> Jim, Joel & Bruno
>
>
>
>
>
>
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
>

--000000000000de067d05aaf59d4b
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<div dir=3D"ltr">Hello -<div><br></div><div>I support=C2=A0WG adoption. Loo=
k forward to our productive discussions on refining the model.</div><div><b=
r></div><div>Best .. Ian</div></div><br><div class=3D"gmail_quote"><div dir=
=3D"ltr" class=3D"gmail_attr">On Mon, Jul 13, 2020 at 11:38 AM James Guicha=
rd &lt;<a href=3D"mailto:james.n.guichard@futurewei.com">james.n.guichard@f=
uturewei.com</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" styl=
e=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);paddin=
g-left:1ex">





<div lang=3D"EN-US">
<div>
<p class=3D"MsoNormal">Dear WG:<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">This email begins a 2 week WG adoption call for <a h=
ref=3D"https://datatracker.ietf.org/doc/draft-raza-spring-sr-policy-yang/" =
target=3D"_blank">
https://datatracker.ietf.org/doc/draft-raza-spring-sr-policy-yang/</a> endi=
ng Monday 27<sup>th</sup> July 2020.
<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">Please speak up if you support or oppose adopting th=
is document into the WG. Please also provide comments/reasons for that supp=
ort (or lack thereof). Silence will not be considered consent.<u></u><u></u=
></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">Thanks!<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">Jim, Joel &amp; Bruno<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
</div>

_______________________________________________<br>
spring mailing list<br>
<a href=3D"mailto:spring@ietf.org" target=3D"_blank">spring@ietf.org</a><br=
>
<a href=3D"https://www.ietf.org/mailman/listinfo/spring" rel=3D"noreferrer"=
 target=3D"_blank">https://www.ietf.org/mailman/listinfo/spring</a><br>
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--000000000000de067d05aaf59d4b--


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From: Robert Raszuk <robert@raszuk.net>
Date: Tue, 21 Jul 2020 18:02:45 +0200
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To: James Guichard <james.n.guichard@futurewei.com>
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Subject: Re: [spring] WG Adoption Call for draft-raza-spring-sr-policy-yang
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Support.

Thx,
R.

On Mon, Jul 13, 2020 at 5:38 PM James Guichard <
james.n.guichard@futurewei.com> wrote:

> Dear WG:
>
>
>
> This email begins a 2 week WG adoption call for
> https://datatracker.ietf.org/doc/draft-raza-spring-sr-policy-yang/ ending
> Monday 27th July 2020.
>
>
>
> Please speak up if you support or oppose adopting this document into the
> WG. Please also provide comments/reasons for that support (or lack
> thereof). Silence will not be considered consent.
>
>
>
> Thanks!
>
>
>
> Jim, Joel & Bruno
>
>
>
>
>
>
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
>

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<div dir=3D"ltr">Support.=C2=A0<div><br></div><div>Thx,<br>R.</div></div><b=
r><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Mon, =
Jul 13, 2020 at 5:38 PM James Guichard &lt;<a href=3D"mailto:james.n.guicha=
rd@futurewei.com">james.n.guichard@futurewei.com</a>&gt; wrote:<br></div><b=
lockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-le=
ft:1px solid rgb(204,204,204);padding-left:1ex">





<div lang=3D"EN-US">
<div>
<p class=3D"MsoNormal">Dear WG:<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">This email begins a 2 week WG adoption call for <a h=
ref=3D"https://datatracker.ietf.org/doc/draft-raza-spring-sr-policy-yang/" =
target=3D"_blank">
https://datatracker.ietf.org/doc/draft-raza-spring-sr-policy-yang/</a> endi=
ng Monday 27<sup>th</sup> July 2020.
<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">Please speak up if you support or oppose adopting th=
is document into the WG. Please also provide comments/reasons for that supp=
ort (or lack thereof). Silence will not be considered consent.<u></u><u></u=
></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">Thanks!<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">Jim, Joel &amp; Bruno<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
</div>

_______________________________________________<br>
spring mailing list<br>
<a href=3D"mailto:spring@ietf.org" target=3D"_blank">spring@ietf.org</a><br=
>
<a href=3D"https://www.ietf.org/mailman/listinfo/spring" rel=3D"noreferrer"=
 target=3D"_blank">https://www.ietf.org/mailman/listinfo/spring</a><br>
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From: Rakesh Gandhi <rgandhi.ietf@gmail.com>
Date: Tue, 21 Jul 2020 12:06:26 -0400
Message-ID: <CAMZsk6d9GL4fRLncQJ26uMzhOUSDq3CKFYSoOXNEO9LpPg=ykw@mail.gmail.com>
To: James Guichard <james.n.guichard@futurewei.com>
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Subject: Re: [spring] WG Adoption Call for draft-raza-spring-sr-policy-yang
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Hi WG,
Support the WG adoption of this important work for SR Policy.

Thanks,
Rakesh


On Mon, Jul 13, 2020 at 11:38 AM James Guichard <
james.n.guichard@futurewei.com> wrote:

> Dear WG:
>
>
>
> This email begins a 2 week WG adoption call for
> https://datatracker.ietf.org/doc/draft-raza-spring-sr-policy-yang/ ending
> Monday 27th July 2020.
>
>
>
> Please speak up if you support or oppose adopting this document into the
> WG. Please also provide comments/reasons for that support (or lack
> thereof). Silence will not be considered consent.
>
>
>
> Thanks!
>
>
>
> Jim, Joel & Bruno
>
>
>
>
>
>
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
>

--000000000000d1926805aaf5ce67
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<div dir=3D"ltr"><div>Hi WG,</div><div>Support the WG adoption of this impo=
rtant work for SR Policy.</div><div><br></div><div>Thanks,</div><div>Rakesh=
</div><div><br></div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" =
class=3D"gmail_attr">On Mon, Jul 13, 2020 at 11:38 AM James Guichard &lt;<a=
 href=3D"mailto:james.n.guichard@futurewei.com">james.n.guichard@futurewei.=
com</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"marg=
in:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1e=
x">





<div lang=3D"EN-US">
<div>
<p class=3D"MsoNormal">Dear WG:<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">This email begins a 2 week WG adoption call for <a h=
ref=3D"https://datatracker.ietf.org/doc/draft-raza-spring-sr-policy-yang/" =
target=3D"_blank">
https://datatracker.ietf.org/doc/draft-raza-spring-sr-policy-yang/</a> endi=
ng Monday 27<sup>th</sup> July 2020.
<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">Please speak up if you support or oppose adopting th=
is document into the WG. Please also provide comments/reasons for that supp=
ort (or lack thereof). Silence will not be considered consent.<u></u><u></u=
></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">Thanks!<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal">Jim, Joel &amp; Bruno<u></u><u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
</div>

_______________________________________________<br>
spring mailing list<br>
<a href=3D"mailto:spring@ietf.org" target=3D"_blank">spring@ietf.org</a><br=
>
<a href=3D"https://www.ietf.org/mailman/listinfo/spring" rel=3D"noreferrer"=
 target=3D"_blank">https://www.ietf.org/mailman/listinfo/spring</a><br>
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From: Rakesh Gandhi <rgandhi.ietf@gmail.com>
Date: Tue, 21 Jul 2020 12:16:01 -0400
Message-ID: <CAMZsk6fycdZxAFY=mTnhYSr=DG7xd9OJrjzr_JEWbg4zNRs_UA@mail.gmail.com>
Cc: James Guichard <james.n.guichard@futurewei.com>, "spring@ietf.org" <spring@ietf.org>,  "spring-chairs@ietf.org" <spring-chairs@ietf.org>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/xfifyEb1jNmEZRhdJchlC3xy7JI>
Subject: Re: [spring] WG Adoption Call for draft-raza-spring-srv6-yang
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Content-Type: text/plain; charset="UTF-8"

Hi WG,
I support the WG adoption of this important work for SRv6.

Thanks,
Rakesh



>
>
> *From:* spring <spring-bounces@ietf.org> *On Behalf Of *James Guichard
> *Sent:* 14 July 2020 03:22
> *To:* spring@ietf.org
> *Cc:* spring-chairs@ietf.org
> *Subject:* [spring] WG Adoption Call for draft-raza-spring-srv6-yang
>
>
>
> Dear WG:
>
>
>
> This email begins a 2 week WG adoption call for
> https://datatracker.ietf.org/doc/draft-raza-spring-srv6-yang/ ending
> Monday 27th July 2020.
>
>
>
> Please speak up if you support or oppose adopting this document into the
> WG. Please also provide comments/reasons for that support (or lack
> thereof). Silence will not be considered consent.
>
>
>
> Thanks!
>
>
>
> Jim, Joel & Bruno
>
>
>
>
>
>
>
>
>
>
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
>

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<div dir=3D"ltr"><div class=3D"gmail_quote"><div>Hi WG,</div><div>I support=
 the WG adoption of this important work for SRv6.</div><div><br></div><div>=
Thanks,</div><div>Rakesh</div><div><br></div><div>=C2=A0</div><blockquote c=
lass=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px soli=
d rgb(204,204,204);padding-left:1ex"><div lang=3D"EN-IN"><div><p class=3D"M=
soNormal"><span><u></u><u></u></span></p><span>=C2=A0</span>
<div>
<div style=3D"border-color:rgb(225,225,225) currentcolor currentcolor;borde=
r-style:solid none none;border-width:1pt medium medium;padding:3pt 0cm 0cm"=
>
<p class=3D"MsoNormal"><b><span lang=3D"EN-US">From:</span></b><span lang=
=3D"EN-US"> spring &lt;<a href=3D"mailto:spring-bounces@ietf.org" target=3D=
"_blank">spring-bounces@ietf.org</a>&gt;
<b>On Behalf Of </b>James Guichard<br>
<b>Sent:</b> 14 July 2020 03:22<br>
<b>To:</b> <a href=3D"mailto:spring@ietf.org" target=3D"_blank">spring@ietf=
.org</a><br>
<b>Cc:</b> <a href=3D"mailto:spring-chairs@ietf.org" target=3D"_blank">spri=
ng-chairs@ietf.org</a><br>
<b>Subject:</b> [spring] WG Adoption Call for draft-raza-spring-srv6-yang<u=
></u><u></u></span></p>
</div>
</div>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Dear WG:<u></u><u></u></span></=
p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">=C2=A0<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">This email begins a 2 week WG a=
doption call for
<a href=3D"https://datatracker.ietf.org/doc/draft-raza-spring-srv6-yang/" t=
arget=3D"_blank">https://datatracker.ietf.org/doc/draft-raza-spring-srv6-ya=
ng/</a> ending Monday 27<sup>th</sup> July 2020.
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">=C2=A0<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Please speak up if you support =
or oppose adopting this document into the WG. Please also provide comments/=
reasons for that support (or lack thereof). Silence will not be considered =
consent.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">=C2=A0<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Thanks!<u></u><u></u></span></p=
>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">=C2=A0<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Jim, Joel &amp; Bruno<u></u><u>=
</u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><i><span style=3D"font-size:12pt;font-family:&quot;T=
imes New Roman&quot;,serif" lang=3D"EN-US"><u></u>=C2=A0<u></u></span></i><=
/p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
</div>
</div>

_______________________________________________<br>
spring mailing list<br>
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>
<a href=3D"https://www.ietf.org/mailman/listinfo/spring" rel=3D"noreferrer"=
 target=3D"_blank">https://www.ietf.org/mailman/listinfo/spring</a><br>
</blockquote></div></div>

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To: James Guichard <james.n.guichard@futurewei.com>, "spring@ietf.org" <spring@ietf.org>
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Thread-Topic: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn
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From: "Francois Clad (fclad)" <fclad@cisco.com>
To: James Guichard <james.n.guichard@futurewei.com>, "spring@ietf.org" <spring@ietf.org>
CC: "spring-chairs@ietf.org" <spring-chairs@ietf.org>
Thread-Topic: [spring] WG Adoption Call for draft-raza-spring-sr-policy-yang
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Subject: Re: [spring] WG Adoption Call for draft-raza-spring-sr-policy-yang
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From: Xufeng Liu <xufeng.liu.ietf@gmail.com>
Date: Tue, 21 Jul 2020 14:39:37 -0400
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To: "Francois Clad (fclad)" <fclad=40cisco.com@dmarc.ietf.org>
Cc: James Guichard <james.n.guichard@futurewei.com>, "spring@ietf.org" <spring@ietf.org>,  "spring-chairs@ietf.org" <spring-chairs@ietf.org>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/8WQET9HizpG0FYnT1oN6m4Fh4to>
Subject: Re: [spring] WG Adoption Call for draft-raza-spring-sr-policy-yang
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Support.

Thanks,
- Xufeng

On Tue, Jul 21, 2020 at 12:18 PM Francois Clad (fclad) <fclad=
40cisco.com@dmarc.ietf.org> wrote:

> Hi,
>
>
>
> I support the adoption of this draft.
>
>
>
> The definition of a YANG data model for the SR policy architecture is an
> important work item for this WG.
>
>
>
> Thanks,
>
> Francois
>
>
>
> *From: *spring <spring-bounces@ietf.org> on behalf of James Guichard <
> james.n.guichard@futurewei.com>
> *Date: *Monday 13 July 2020 at 17:38
> *To: *"spring@ietf.org" <spring@ietf.org>
> *Cc: *"spring-chairs@ietf.org" <spring-chairs@ietf.org>
> *Subject: *[spring] WG Adoption Call for draft-raza-spring-sr-policy-yang
>
>
>
> Dear WG:
>
>
>
> This email begins a 2 week WG adoption call for
> https://datatracker.ietf.org/doc/draft-raza-spring-sr-policy-yang/ ending
> Monday 27th July 2020.
>
>
>
> Please speak up if you support or oppose adopting this document into the
> WG. Please also provide comments/reasons for that support (or lack
> thereof). Silence will not be considered consent.
>
>
>
> Thanks!
>
>
>
> Jim, Joel & Bruno
>
>
>
>
>
>
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
>

--000000000000b649b305aaf7f200
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Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div>Support.</div><div><br></div><div>Thanks,</div><div>-=
 Xufeng<br></div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" clas=
s=3D"gmail_attr">On Tue, Jul 21, 2020 at 12:18 PM Francois Clad (fclad) &lt=
;fclad=3D<a href=3D"mailto:40cisco.com@dmarc.ietf.org">40cisco.com@dmarc.ie=
tf.org</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"m=
argin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left=
:1ex">





<div lang=3D"en-FR">
<div class=3D"gmail-m_-3586756954656410328WordSection1">
<p class=3D"MsoNormal"><span lang=3D"EN-US">Hi,<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">I support the adoption of this =
draft.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">The definition of a YANG data m=
odel for the SR policy architecture is an important work item for this WG.<=
u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Thanks,<u></u><u></u></span></p=
>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Francois<u></u><u></u></span></=
p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<div style=3D"border-color:rgb(181,196,223) currentcolor currentcolor;borde=
r-style:solid none none;border-width:1pt medium medium;padding:3pt 0cm 0cm"=
>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><b><span style=3D"font-si=
ze:12pt;color:black">From:
</span></b><span style=3D"font-size:12pt;color:black">spring &lt;<a href=3D=
"mailto:spring-bounces@ietf.org" target=3D"_blank">spring-bounces@ietf.org<=
/a>&gt; on behalf of James Guichard &lt;<a href=3D"mailto:james.n.guichard@=
futurewei.com" target=3D"_blank">james.n.guichard@futurewei.com</a>&gt;<br>
<b>Date: </b>Monday 13 July 2020 at 17:38<br>
<b>To: </b>&quot;<a href=3D"mailto:spring@ietf.org" target=3D"_blank">sprin=
g@ietf.org</a>&quot; &lt;<a href=3D"mailto:spring@ietf.org" target=3D"_blan=
k">spring@ietf.org</a>&gt;<br>
<b>Cc: </b>&quot;<a href=3D"mailto:spring-chairs@ietf.org" target=3D"_blank=
">spring-chairs@ietf.org</a>&quot; &lt;<a href=3D"mailto:spring-chairs@ietf=
.org" target=3D"_blank">spring-chairs@ietf.org</a>&gt;<br>
<b>Subject: </b>[spring] WG Adoption Call for draft-raza-spring-sr-policy-y=
ang<u></u><u></u></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36pt"><u></u>=C2=A0<u></u></p>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:36pt">Dear WG:<u></u><u></u></p=
>
<p class=3D"MsoNormal" style=3D"margin-left:36pt">=C2=A0<u></u><u></u></p>
<p class=3D"MsoNormal" style=3D"margin-left:36pt">This email begins a 2 wee=
k WG adoption call for
<a href=3D"https://datatracker.ietf.org/doc/draft-raza-spring-sr-policy-yan=
g/" target=3D"_blank">https://datatracker.ietf.org/doc/draft-raza-spring-sr=
-policy-yang/</a> ending Monday 27<sup>th</sup> July 2020.
<u></u><u></u></p>
<p class=3D"MsoNormal" style=3D"margin-left:36pt">=C2=A0<u></u><u></u></p>
<p class=3D"MsoNormal" style=3D"margin-left:36pt">Please speak up if you su=
pport or oppose adopting this document into the WG. Please also provide com=
ments/reasons for that support (or lack thereof). Silence will not be consi=
dered consent.<u></u><u></u></p>
<p class=3D"MsoNormal" style=3D"margin-left:36pt">=C2=A0<u></u><u></u></p>
<p class=3D"MsoNormal" style=3D"margin-left:36pt">Thanks!<u></u><u></u></p>
<p class=3D"MsoNormal" style=3D"margin-left:36pt">=C2=A0<u></u><u></u></p>
<p class=3D"MsoNormal" style=3D"margin-left:36pt">Jim, Joel &amp; Bruno<u><=
/u><u></u></p>
<p class=3D"MsoNormal" style=3D"margin-left:36pt">=C2=A0<u></u><u></u></p>
<p class=3D"MsoNormal" style=3D"margin-left:36pt">=C2=A0<u></u><u></u></p>
<p class=3D"MsoNormal" style=3D"margin-left:36pt">=C2=A0<u></u><u></u></p>
</div>
</div>

_______________________________________________<br>
spring mailing list<br>
<a href=3D"mailto:spring@ietf.org" target=3D"_blank">spring@ietf.org</a><br=
>
<a href=3D"https://www.ietf.org/mailman/listinfo/spring" rel=3D"noreferrer"=
 target=3D"_blank">https://www.ietf.org/mailman/listinfo/spring</a><br>
</blockquote></div>

--000000000000b649b305aaf7f200--


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From: Xufeng Liu <xufeng.liu.ietf@gmail.com>
Date: Tue, 21 Jul 2020 14:57:56 -0400
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To: James Guichard <james.n.guichard@futurewei.com>
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Subject: Re: [spring] WG Adoption Call for draft-raza-spring-srv6-yang
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Support as a co-author.
Thanks,
- Xufeng

On Mon, Jul 13, 2020 at 5:52 PM James Guichard <
james.n.guichard@futurewei.com> wrote:

> Dear WG:
>
>
>
> This email begins a 2 week WG adoption call for
> https://datatracker.ietf.org/doc/draft-raza-spring-srv6-yang/ ending
> Monday 27th July 2020.
>
>
>
> Please speak up if you support or oppose adopting this document into the
> WG. Please also provide comments/reasons for that support (or lack
> thereof). Silence will not be considered consent.
>
>
>
> Thanks!
>
>
>
> Jim, Joel & Bruno
>
>
>
>
>
>
>
>
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
>

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<div dir=3D"ltr"><div><span style=3D"color:black">Support as a co-author.</=
span></div><div><span style=3D"color:black">Thanks,</span></div><div><span =
style=3D"color:black">- Xufeng<br></span></div></div><br><div class=3D"gmai=
l_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Mon, Jul 13, 2020 at 5:52=
 PM James Guichard &lt;<a href=3D"mailto:james.n.guichard@futurewei.com">ja=
mes.n.guichard@futurewei.com</a>&gt; wrote:<br></div><blockquote class=3D"g=
mail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204=
,204,204);padding-left:1ex">





<div lang=3D"EN-US">
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Dear WG:<u></u><u></u></span></=
p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">=C2=A0<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">This email begins a 2 week WG a=
doption call for
<a href=3D"https://datatracker.ietf.org/doc/draft-raza-spring-srv6-yang/" t=
arget=3D"_blank">https://datatracker.ietf.org/doc/draft-raza-spring-srv6-ya=
ng/</a> ending Monday 27<sup>th</sup> July 2020.
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">=C2=A0<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Please speak up if you support =
or oppose adopting this document into the WG. Please also provide comments/=
reasons for that support (or lack thereof). Silence will not be considered =
consent.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">=C2=A0<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Thanks!<u></u><u></u></span></p=
>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">=C2=A0<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Jim, Joel &amp; Bruno<u></u><u>=
</u></span></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><b><span style=3D"font-size:12pt"></span></b><i><spa=
n style=3D"font-size:12pt;font-family:&quot;Times New Roman&quot;,serif"><u=
></u><u></u></span></i></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
</div>

_______________________________________________<br>
spring mailing list<br>
<a href=3D"mailto:spring@ietf.org" target=3D"_blank">spring@ietf.org</a><br=
>
<a href=3D"https://www.ietf.org/mailman/listinfo/spring" rel=3D"noreferrer"=
 target=3D"_blank">https://www.ietf.org/mailman/listinfo/spring</a><br>
</blockquote></div>

--0000000000002b9cf805aaf8348d--


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From: "Chengli (Cheng Li)" <c.l@huawei.com>
To: James Guichard <james.n.guichard@futurewei.com>, "spring@ietf.org" <spring@ietf.org>
CC: "spring-chairs@ietf.org" <spring-chairs@ietf.org>
Thread-Topic: WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn
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Date: Wed, 22 Jul 2020 03:10:37 +0000
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Subject: Re: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn
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Yes, support. The idea of SR for enhanced VPN is really clear and straight =
forward, and it is needed for sure.

Since the text is stable and mature, I support the adoption.

Respect,
Cheng


From: spring [mailto:spring-bounces@ietf.org] On Behalf Of James Guichard
Sent: Wednesday, July 15, 2020 7:17 PM
To: spring@ietf.org
Cc: spring-chairs@ietf.org
Subject: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vp=
n

Dear WG:

This email begins a 2 week WG adoption call for https://datatracker.ietf.or=
g/doc/draft-dong-spring-sr-for-enhanced-vpn/ ending Wednesday 29th July 202=
0.

Please speak up if you support or oppose adopting this document into the WG=
. Please also provide comments/reasons for that support (or lack thereof). =
Silence will not be considered consent.

Thanks!

Jim, Joel & Bruno




--_000_C7C2E1C43D652C4E9E49FE7517C236CB02B0E41Bdggeml529mbxchi_
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<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">Yes, support. The idea=
 of SR for enhanced VPN is really clear and straight forward, and it is nee=
ded for sure.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">Since the text is stab=
le and mature, I support the adoption.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">Respect,<o:p></o:p></s=
pan></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">Cheng<o:p></o:p></span=
></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b>From:</b> spring [mailto:spring-bounces@ietf.org]=
 <b>On Behalf Of
</b>James Guichard<br>
<b>Sent:</b> Wednesday, July 15, 2020 7:17 PM<br>
<b>To:</b> spring@ietf.org<br>
<b>Cc:</b> spring-chairs@ietf.org<br>
<b>Subject:</b> [spring] WG Adoption Call for draft-dong-spring-sr-for-enha=
nced-vpn<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Dear WG:<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">This email begins a 2 week WG adoption call for <a h=
ref=3D"https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-v=
pn/">
https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/</a>=
 ending Wednesday 29<sup>th</sup> July 2020.
<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Please speak up if you support or oppose adopting th=
is document into the WG. Please also provide comments/reasons for that supp=
ort (or lack thereof). Silence will not be considered consent.<o:p></o:p></=
p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Thanks!<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Jim, Joel &amp; Bruno<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
</body>
</html>

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Subject: [spring] =?utf-8?b?562U5aSNOiAgIFdHIEFkb3B0aW9uQ2FsbGZvcmRyYWZ0?= =?utf-8?q?-dong-spring-sr-for-enhanced-vpn?=
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Hi Shaofu,

        =20

The resource in this document refers to the data plane resource used for =
packet processing. This aligns with the resource reservation concept in =
TEAS. This has been clarified in the draft.=20

=20

With SR architecture, SIDs can be used to represent any instructions, =
thus using SID to identify a set of network resource complies with the =
SR architecture. However, the segments as defined in RFC 8402 and other =
documents before this draft did not cover this useful semantic. Thus IMO =
this needs to be specified explicitly under the SR architecture first, =
so that further work based on resource-aware SIDs can be done in =
relevant WGs.=20

=20

=20

=20

=20

=20

Thanks,

Fengwei Qin

=20

=E5=8F=91=E4=BB=B6=E4=BA=BA: spring [mailto:spring-bounces@ietf.org] =
=E4=BB=A3=E8=A1=A8 peng.shaofu@zte.com.cn
=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4: 2020=E5=B9=B47=E6=9C=8823=E6=97=A5 =
09:25
=E6=94=B6=E4=BB=B6=E4=BA=BA: li_zhenqiang@hotmail.com
=E6=8A=84=E9=80=81: james.n.guichard@futurewei.com; jie.dong@huawei.com; =
spring@ietf.org; chen.ran@zte.com.cn; spring-chairs@ietf.org
=E4=B8=BB=E9=A2=98: Re: [spring] WG =
AdoptionCallfordraft-dong-spring-sr-for-enhanced-vpn

=20

Hi zhenqiang,

=20

Resource is a big, all encompassing concept. Similarly, service concept, =
application concept, intent concept, etc, you can find more.=20

IMO, we can't ignore the fact that the current SR architecture already =
cover resource related SID allocation, but to surmise that it lacks =
resource meaning, then to submit an unnecessary and redundant framework. =


=20

AFAIK, there have already been several documents that defined the =
allocation of SID for specific resouce, for example:

draft-ietf-lsr-flex-algo described topology related resource partition =
and algorithm based SID allocation,=20

L2-bundles(rfc8668) described the allocation of member adjacency SIDs =
for subdivided link resources

draft-peng-teas-network-slicing described slice related resource =
partition and corresponding SID allocation.

All of these solutions follow the existing SR architecture. Thus it is =
not the truth that we all think that the existing SR architecture does =
not cover allocating resource-awareness SID and explicitly resource =
capability or semantic need to be defined.

I believe there will be more SR based solution in the future. For =
simplicity and refinement, we can not paint the lily to change the =
existing architecture at will, ignoring the fact that it can work and =
perfect support for every solutions. Otherwise, for some purpose, =
someone can also persist that the SR architecture lacks service =
meanning, application meaning, intent meanning, etc, then more and more =
unnecessary X-awareness framework appear.=20

=20

So let us focus on specific solutions, i.e, just like what is done in =
flex-algo or other documents, detailed control extension and forwarding =
mechanism for virtual network (yes ,you can say this doc is not only for =
virtual network, but this is exactly what makes me confused. It is not =
clear for other purpose) . A new X-awareness framework is really =
unnecessary, except for standard strategy.

=20

Regards,

PSF

=20

=20

=E5=8E=9F=E5=A7=8B=E9=82=AE=E4=BB=B6

=E5=8F=91=E4=BB=B6=E4=BA=BA=EF=BC=9Ali_zhenqiang@hotmail.com =
<li_zhenqiang@hotmail.com>

=E6=94=B6=E4=BB=B6=E4=BA=BA=EF=BC=9A=E9=99=88=E7=84=B600080434;Dongjie =
(Jimmy) <jie.dong@huawei.com>;

=E6=8A=84=E9=80=81=E4=BA=BA=EF=BC=9AJames Guichard =
<james.n.guichard@futurewei.com>;spring@ietf.org =
<spring@ietf.org>;spring-chairs@ietf.org <spring-chairs@ietf.org>;

=E6=97=A5 =E6=9C=9F =EF=BC=9A2020=E5=B9=B407=E6=9C=8821=E6=97=A5 12:48

=E4=B8=BB =E9=A2=98 =EF=BC=9ARe: [spring] WG =
AdoptionCallfordraft-dong-spring-sr-for-enhanced-vpn

_______________________________________________
spring mailing list
spring@ietf.org
https://www.ietf.org/mailman/listinfo/spring

Hi Ran,

=20

Thank you very much for your interests in and comments on this draft.

=20

Yes, you are right that SR architecture supports resource related SIDs. =
So we can specify the resource related framework under SR architecture.  =
This is the main purpose of this doc. RFC8402 supports resource related =
SIDs, but doesn't  define them, which are defined in this doc.

=20

However, I am afraid I can not agree with you that this doc is mainly to =
manage and maintain virtual network resources.  The concept and =
mechanism of resource-awareness SID is introduced in this doc to enrich =
the semantics of SR SID and to enhance the SR architecture. Thanks to =
its flexibility and extensibility.

Resource related SIDs introduced in this doc can be used to construct =
virtual networks, resource isolated pathes, dedicated queques in one =
node and so on, which depends on the application scenarios.=20

=20

Since this draft belongs to SPRING WG, IMO it is correct that it focuses =
the semantics and functions associated with SR SIDs. The identifier and =
mechanisms in control plane could be discussed in the corresponding =
protocol WGs as next step. Please pay attention to our related work in =
the protocol WGs and you are welcome to present your comments there... =
Thanks alot.

=20

Best regards,

Zhenqiang Li

=20

  _____ =20

li_zhenqiang@hotmail.com

=20

From: chen.ran@zte.com.cn

Date: 2020-07-20 17:11

To: jie.dong@huawei.com <mailto:jie...dong@huawei.com>=20

CC: james.n.guichard <mailto:james.n.guichard@futurewei.com> ; spring =
<mailto:spring@ietf.org> ; spring-chairs <mailto:spring-chairs@ietf.org> =


Subject: Re: [spring]WG Adoption =
Callfordraft-dong-spring-sr-for-enhanced-vpn

Hi Jie,

IMO, the essence of the problem is that an identifier should be =
introduced to manage and maintain virtual network resources,  not =
whether it is necessary to allocate resource related SIDs , because the =
current SR architecture already supports resource related SIDs =
allocation, there is no limit to that. For example, service SID =
(compuated resource related), Node/Adjacency SID(topological resource =
related), etc. Especially, SRv6 SID encourages programming anything. Can =
we say that these SIDs have no resource meaning?

Thus, draft-dong-spring-sr-for-enhanced-vpn does not introduce any new =
content on the existing SR architecture.

=20

For identifier to manage and maintain virtual network resources, =
draft-peng-teas-network-slicing firstly to introduce a new identifier =
(AII) in the network to unifiedly identify the topology, computing and =
storage resource. Before that, other existing identities only focus on =
topology resources.

=20

Just for topology related resource, Segment Routing with =
MTR/Flex-algo/AII all support the division of multiple topological =
resource, and already support allocatoin of SID per MT-ID/algorithm/AII. =
Especially for link resource, the bandwidth of the same link can be =
subdivided into multiple resources.=20

If these subdivided resources exist in the form of sub-interface =
resources, L2-bundles(rfc8668) provides the method to assign =
adjacency-SID for members, In other words, the allocation of member =
adjacency SID has already been aware of these subdivided resources, each =
sub-interface has its own link attributes (bandwidth, delay, etc.).=20

If there are no sub-interface, the link can also be shared by multiple =
virtual networks to allocate multiple adjacency SIDs. Under the existing =
SR architecture, draft-peng-teas-network-slicing and =
draft-peng-lsr-algorithm-related-adjacency-sid have already described =
the allocation of adjacency SID per AII and algorithm.

=20

Obviously, the above SR with MTR/Flex-algo/AII are all complete =
solutions, including control plane extensions and forwarding mechanisms, =
and they need not make any changes to the SR architecture.

I wonder according to draft-dong-spring-sr-for-enhanced-vpn, what can we =
do under its guidance, or what we can't do without this draft?=20

=20

Regards,

Ran

=20

=20

=E5=8F=91=E4=BB=B6=E4=BA=BA=EF=BC=9ADongjie(Jimmy) <jie.dong@huawei.com>

=E6=94=B6=E4=BB=B6=E4=BA=BA=EF=BC=9A=E9=99=88=E7=84=B600080434;james.n.gu=
ichard@futurewei.com <james.n.guichard@futurewei.com>;spring@ietf.org =
<spring@ietf.org>;

=E6=8A=84=E9=80=81=E4=BA=BA=EF=BC=9Aspring-chairs@ietf.org =
<spring-chairs@ietf.org>;

=E6=97=A5 =E6=9C=9F =EF=BC=9A2020=E5=B9=B407=E6=9C=8816=E6=97=A5 19:50

=E4=B8=BB =E9=A2=98 =EF=BC=9ARE: [spring] WG Adoption =
Callfordraft-dong-spring-sr-for-enhanced-vpn

Hi Ran,

=20

Thanks for your comments. While I don=E2=80=99t quite get your point of =
objection.  Perhaps you have some misunderstanding about the =
relationship of the drafts mentioned.

=20

RFC 8402 introduced the topology and service semantics of SR SID, this =
document proposed to add resource semantics to SIDs. Then MT or =
Flex-Algo are control plane mechanism for the distribution of =
topology-specific SIDs... The relationship with these documents are =
described in this draft.

       =20

My reading of draft-peng in LSR and TEAS is that they may provide an =
option of control plane extensions for the resource-aware SIDs defined =
in this document, which just proves that the enhancement in this =
document is in the right direction, and more work based on it could be =
done in relevant WGs.

=20

Thus my suggestion would be to have the SR enhancement adopted in SPRING =
first, then more discussion about its control plane could happen in =
other WGs as the next step. =20

=20

Hope this helps.

=20

Best regards,

Jie

=20

From: spring [mailto:spring-bounces@ietf.org]On Behalf Of =
chen.ran@zte.com.cn
Sent: Thursday, July 16, 2020 5:20 PM
To: james.n.guichard@futurewei.com; spring@ietf.org
Cc: spring-chairs@ietf.org
Subject: Re: [spring] WG Adoption Call =
fordraft-dong-spring-sr-for-enhanced-vpn

=20

Dear WG,

I don't support WG adoption.

It is not a new idea for each Virtual Network to have its own SIDs.

e.g. The earlist description of the SID be allocated per flex-algorithm =
and related metric

 information was in draft-hegdeppsenak-isis-sr-flex-algo-00(2017.7.17) =
(now is draft-ietf-isis-sr-flex-algo) .=20

The earlist description of the SID be allocated per MT was in =
draft-filsfils-spring-segment-routing-04(2014.7...3)

(now is RFC8402 ), and draft-peng-lsr-network-slicing-00(2019.2.25) =
describe the

SID be allocated per AII(alias alice).  For slice resources, =
<https://tools.ietf.org/html/draft-peng-teas-network-slicing-03> =
https://tools.ietf.org/html/draft-peng-teas-network-slicing-03 =20

induced slice-id(AII) for slice resources management, and can =
differentiate them (e.g. L2 link or L3 interface,

section 7 ), and how to compute SR-BE or SR-TE path according to AII =
combined with other criteria.

=20

Regards,

Ran

=20


-----Original Message-----
From: spring <spring-bounces@ietf.org> On Behalf Of James Guichard
Sent: Wednesday, July 15, 2020 8:17 PM
To: spring@ietf.org
Cc: spring-chairs@ietf.org
Subject: [spring] WG Adoption Call for =
draft-dong-spring-sr-for-enhanced-vpn

Dear WG:

 =20

This email begins a 2 week WG adoption call for =
https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/ =
<https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/>=
  ending Wednesday 29th July 2020. =20

 =20

Please speak up if you support or oppose adopting this document into the =
WG. Please also provide comments/reasons for that support (or lack =
thereof). Silence will not be considered consent.

 =20

Thanks!

 =20

Jim, Joel & Bruno

 =20

 =20

 =20


_______________________________________________
spring mailing list
spring@ietf.org

=20

=20


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</o:shapelayout></xml><![endif]--></head><body lang=3DZH-CN link=3Dblue =
vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Hi Shaofu,<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 </span><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'> <o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>The resource in this document refers to the data plane resource used =
for packet processing. This aligns with the resource reservation concept =
in TEAS. This has been clarified in the draft. <o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>With SR architecture, SIDs can be used to represent any instructions, =
thus using SID to identify a set of network resource complies with the =
SR architecture. However, the segments as defined in RFC 8402 and other =
documents before this draft did not cover this useful semantic. Thus IMO =
this needs to be specified explicitly under the SR architecture first, =
so that further work based on resource-aware SIDs can be done in =
relevant WGs. <o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal =
style=3D'text-align:justify;text-justify:inter-ideograph'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'=
><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal =
style=3D'text-align:justify;text-justify:inter-ideograph'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'=
><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal =
style=3D'text-align:justify;text-justify:inter-ideograph'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'=
>Thanks,<o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'text-align:justify;text-justify:inter-ideograph'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:black'=
>Fengwei Qin<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><div =
style=3D'border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm =
0cm 0cm'><p class=3DMsoNormal><b><span =
style=3D'font-size:10.0pt'>=E5=8F=91=E4=BB=B6=E4=BA=BA<span =
lang=3DEN-US>:</span></span></b><span lang=3DEN-US =
style=3D'font-size:10.0pt'> spring [mailto:spring-bounces@ietf.org] =
</span><b><span style=3D'font-size:10.0pt'>=E4=BB=A3=E8=A1=A8 =
</span></b><span lang=3DEN-US =
style=3D'font-size:10.0pt'>peng.shaofu@zte.com.cn<br></span><b><span =
style=3D'font-size:10.0pt'>=E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4<span =
lang=3DEN-US>:</span></span></b><span lang=3DEN-US =
style=3D'font-size:10.0pt'> 2020</span><span =
style=3D'font-size:10.0pt'>=E5=B9=B4<span =
lang=3DEN-US>7</span>=E6=9C=88<span lang=3DEN-US>23</span>=E6=97=A5<span =
lang=3DEN-US> 09:25<br></span><b>=E6=94=B6=E4=BB=B6=E4=BA=BA<span =
lang=3DEN-US>:</span></b><span lang=3DEN-US> =
li_zhenqiang@hotmail.com<br></span><b>=E6=8A=84=E9=80=81<span =
lang=3DEN-US>:</span></b><span lang=3DEN-US> =
james.n.guichard@futurewei.com; jie.dong@huawei.com; spring@ietf.org; =
chen.ran@zte.com.cn; =
spring-chairs@ietf.org<br></span><b>=E4=B8=BB=E9=A2=98<span =
lang=3DEN-US>:</span></b><span lang=3DEN-US> Re: [spring] WG =
AdoptionCallfordraft-dong-spring-sr-for-enhanced-vpn<o:p></o:p></span></s=
pan></p></div><p class=3DMsoNormal><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></p><div><p><span lang=3DEN-US =
style=3D'font-size:11.0pt;font-family:"Arial","sans-serif"'>Hi =
zhenqiang,<o:p></o:p></span></p><p><span lang=3DEN-US =
style=3D'font-size:11.0pt;font-family:"Arial","sans-serif"'><o:p>&nbsp;</=
o:p></span></p><p><span lang=3DEN-US>Resource is a big, all encompassing =
concept. Similarly, service concept, application concept, intent =
concept, etc, you can find more. <o:p></o:p></span></p><p><span =
lang=3DEN-US>IMO, we can't ignore the fact that the current SR =
architecture already cover resource related SID allocation, but to =
surmise that it lacks resource meaning, then to submit an unnecessary =
and redundant framework. <o:p></o:p></span></p><p><span =
lang=3DEN-US>&nbsp;<o:p></o:p></span></p><p><span lang=3DEN-US>AFAIK, =
there have already been several documents that defined the allocation of =
SID for specific resouce, for example:<o:p></o:p></span></p><p><span =
lang=3DEN-US>draft-ietf-lsr-flex-algo described topology related =
resource partition and algorithm based SID allocation, =
<o:p></o:p></span></p><p><span lang=3DEN-US>L2-bundles(rfc8668) =
described the allocation of member adjacency SIDs for subdivided link =
resources<o:p></o:p></span></p><p><span =
lang=3DEN-US>draft-peng-teas-network-slicing described slice related =
resource partition and corresponding SID =
allocation.<o:p></o:p></span></p><p><span lang=3DEN-US>All of these =
solutions follow the existing SR architecture. Thus it is not the truth =
that we all think that the existing SR architecture does not cover =
allocating resource-awareness SID and explicitly resource capability or =
semantic need to be defined.<o:p></o:p></span></p><p><span =
lang=3DEN-US>I believe there will be more SR based solution in the =
future. </span><strong><span lang=3DEN-US =
style=3D'font-size:8.5pt;font-family:=E5=AE=8B=E4=BD=93'>For simplicity =
and refinement</span></strong><span lang=3DEN-US>, we can not paint the =
lily to change the existing architecture at will, ignoring the fact that =
it can work and perfect support for every solutions. Otherwise, for some =
purpose, someone can also persist that the SR architecture lacks service =
meanning, application meaning, intent meanning, etc, then more and more =
unnecessary X-awareness framework appear. <o:p></o:p></span></p><p><span =
lang=3DEN-US>&nbsp;<o:p></o:p></span></p><p><span lang=3DEN-US>So let us =
focus on specific solutions, i.e, just like what is done in flex-algo or =
other documents,&nbsp;detailed control extension and forwarding =
mechanism for virtual network (yes ,you can say this doc is not only for =
virtual network, but this is exactly what makes me confused. It is not =
clear for other purpose) . A new X-awareness framework is really =
unnecessary, except for standard strategy.<o:p></o:p></span></p><p><span =
lang=3DEN-US =
style=3D'font-size:11.0pt;font-family:"Arial","sans-serif"'><o:p>&nbsp;</=
o:p></span></p><p><span lang=3DEN-US =
style=3D'font-size:11.0pt;font-family:"Arial","sans-serif"'>Regards,<o:p>=
</o:p></span></p><p style=3D'margin-bottom:12.0pt'><span lang=3DEN-US =
style=3D'font-size:11.0pt;font-family:"Arial","sans-serif"'>PSF<o:p></o:p=
></span></p><p style=3D'box-sizing: border-box;min-height: 14px;outline: =
0px !important'><span lang=3DEN-US><o:p>&nbsp;</o:p></span></p><p =
style=3D'box-sizing: border-box;min-height: 14px;outline: 0px =
!important'><span lang=3DEN-US><o:p>&nbsp;</o:p></span></p><div><div><p =
class=3DMsoNormal align=3Dcenter =
style=3D'text-align:center;line-height:16.8pt;background:#E0E5E9'><span =
style=3D'color:#1388FF'>=E5=8E=9F=E5=A7=8B=E9=82=AE=E4=BB=B6<span =
lang=3DEN-US><o:p></o:p></span></span></p><div =
id=3DzwriteHistoryContainer><div><div><div><p class=3DMsoNormal =
style=3D'background:#F5F6F8'><strong><span =
style=3D'font-family:=E5=AE=8B=E4=BD=93'>=E5=8F=91=E4=BB=B6=E4=BA=BA=EF=BC=
=9A</span></strong><span class=3Dzreadusername><span =
lang=3DEN-US>li_zhenqiang@hotmail.com =
&lt;li_zhenqiang@hotmail.com&gt;</span></span><span =
lang=3DEN-US><o:p></o:p></span></p></div><div><p class=3DMsoNormal =
style=3D'background:#F5F6F8'><strong><span =
style=3D'font-family:=E5=AE=8B=E4=BD=93'>=E6=94=B6=E4=BB=B6=E4=BA=BA=EF=BC=
=9A</span></strong><span class=3Dzreadusername>=E9=99=88=E7=84=B6<span =
lang=3DEN-US>00080434;Dongjie (Jimmy) =
&lt;jie.dong@huawei.com&gt;;</span></span><span =
lang=3DEN-US><o:p></o:p></span></p></div><div><p class=3DMsoNormal =
style=3D'background:#F5F6F8'><strong><span =
style=3D'font-family:=E5=AE=8B=E4=BD=93'>=E6=8A=84=E9=80=81=E4=BA=BA=EF=BC=
=9A</span></strong><span class=3Dzreadusername><span lang=3DEN-US>James =
Guichard &lt;james.n.guichard@futurewei.com&gt;;spring@ietf.org =
&lt;spring@ietf.org&gt;;spring-chairs@ietf.org =
&lt;spring-chairs@ietf.org&gt;;</span></span><span =
lang=3DEN-US><o:p></o:p></span></p></div><div><p class=3DMsoNormal =
style=3D'background:#F5F6F8'><strong><span =
style=3D'font-family:=E5=AE=8B=E4=BD=93'>=E6=97=A5 =E6=9C=9F =
=EF=BC=9A</span></strong><span lang=3DEN-US>2020</span>=E5=B9=B4<span =
lang=3DEN-US>07</span>=E6=9C=88<span =
lang=3DEN-US>21</span>=E6=97=A5<span lang=3DEN-US> =
12:48<o:p></o:p></span></p></div><div><p class=3DMsoNormal =
style=3D'background:#F5F6F8'><strong><span =
style=3D'font-family:=E5=AE=8B=E4=BD=93'>=E4=B8=BB =E9=A2=98 =
=EF=BC=9A<span lang=3DEN-US>Re: [spring] WG =
AdoptionCallfordraft-dong-spring-sr-for-enhanced-vpn</span></span></stron=
g><span lang=3DEN-US><o:p></o:p></span></p></div></div><div><div><p =
class=3DMsoNormal style=3D'margin-bottom:12.0pt'><span =
lang=3DEN-US>_______________________________________________<br>spring&nb=
sp;mailing&nbsp;list<br>spring@ietf.org<br>https://www.ietf.org/mailman/l=
istinfo/spring<o:p></o:p></span></p><div><p class=3DMsoNormal><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Hi Ran,</span><span lang=3DEN-US><o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>&nbsp;</span><span lang=3DEN-US><o:p></o:p></span></p><p =
style=3D'margin:0cm;margin-bottom:.0001pt;line-height:17.15pt;background-=
image:initial;background-attachment:initial;background-size: =
initial;background-origin: initial;background-clip: =
initial;background-position:initial;background-repeat:initial'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Thank you very much for your interests in and comments on this =
draft.</span><span lang=3DEN-US><o:p></o:p></span></p><p =
style=3D'margin:0cm;margin-bottom:.0001pt;line-height:17.15pt;background-=
image:initial;background-attachment:initial;background-size: =
initial;background-origin: initial;background-clip: =
initial;background-position:initial;background-repeat:initial'><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></p><p =
style=3D'margin:0cm;margin-bottom:.0001pt;line-height:17.15pt;background-=
image:initial;background-attachment:initial;background-size: =
initial;background-origin: initial;background-clip: =
initial;background-position:initial;background-repeat:initial'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Yes, you are right that SR architecture supports resource related =
SIDs. So we can specify the resource related framework under SR =
architecture. &nbsp;This is the main purpose of this doc. RFC8402 =
supports&nbsp;resource related SIDs, but doesn't &nbsp;define them, =
which are defined in this doc.</span><span =
lang=3DEN-US><o:p></o:p></span></p><p =
style=3D'margin:0cm;margin-bottom:.0001pt;line-height:17.15pt;background-=
image:initial;background-attachment:initial;background-size: =
initial;background-origin: initial;background-clip: =
initial;background-position:initial;background-repeat:initial'><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></p><p =
style=3D'margin:0cm;margin-bottom:.0001pt;line-height:17.15pt;background-=
image:initial;background-attachment:initial;background-size: =
initial;background-origin: initial;background-clip: =
initial;background-position:initial;background-repeat:initial'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>However, I am afraid I can not agree with you that this doc is mainly =
to manage and maintain virtual network resources. &nbsp;The concept and =
mechanism of resource-awareness SID is introduced in this doc to enrich =
the&nbsp;semantics of SR SID and to enhance the SR architecture. Thanks =
to its flexibility and extensibility.</span><span =
lang=3DEN-US><o:p></o:p></span></p><p =
style=3D'margin:0cm;margin-bottom:.0001pt;line-height:17.15pt;background-=
image:initial;background-attachment:initial;background-size: =
initial;background-origin: initial;background-clip: =
initial;background-position:initial;background-repeat:initial'><span =
lang=3DEN-US =
style=3D'font-family:"Calibri","sans-serif";color:#1F497D'>Resource =
related SIDs introduced in this doc can be used to construct virtual =
networks, resource isolated pathes, dedicated queques in one node and so =
on, which depends on the application scenarios.&nbsp;</span><span =
lang=3DEN-US><o:p></o:p></span></p><p =
style=3D'margin:0cm;margin-bottom:.0001pt;line-height:17.15pt;background-=
image:initial;background-attachment:initial;background-size: =
initial;background-origin: initial;background-clip: =
initial;background-position:initial;background-repeat:initial'><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></p><p =
style=3D'margin:0cm;margin-bottom:.0001pt;line-height:17.15pt;background-=
image:initial;background-attachment:initial;background-size: =
initial;background-origin: initial;background-clip: =
initial;background-position:initial;background-repeat:initial'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Since this draft belongs to SPRING WG, IMO it is correct that it =
focuses the semantics and functions associated with SR SIDs. The =
identifier and mechanisms in control plane could be discussed in the =
corresponding protocol WGs as next step. Please pay attention to our =
related work in the protocol WGs and you are welcome to present your =
comments there... Thanks alot.</span><span =
lang=3DEN-US><o:p></o:p></span></p><p =
style=3D'margin:0cm;margin-bottom:.0001pt;line-height:17.15pt;background-=
image:initial;background-attachment:initial;background-size: =
initial;background-origin: initial;background-clip: =
initial;background-position:initial;background-repeat:initial'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>&nbsp;</span><span lang=3DEN-US><o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Best regards,</span><span lang=3DEN-US><o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Zhenqiang Li</span><span lang=3DEN-US><o:p></o:p></span></p></div><p =
class=3DMsoNormal><span lang=3DEN-US><o:p>&nbsp;</o:p></span></p><div =
class=3DMsoNormal><span lang=3DEN-US><hr size=3D1 width=3D210 =
style=3D'width:126.0pt' noshade style=3D'color:#B5C4DF' =
align=3Dleft></span></div><div><div =
style=3D'margin-left:6.0pt;margin-top:6.0pt;margin-right:6.0pt;margin-bot=
tom:6.0pt'><div><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Verdana","sans-serif"'>li_zhenqian=
g@hotmail.com<o:p></o:p></span></p></div></div></div><blockquote =
style=3D'margin-left:6.0pt'><p class=3DMsoNormal><span =
lang=3DEN-US>&nbsp;<o:p></o:p></span></p><div =
style=3D'border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm =
0cm 0cm'><div><div><p class=3DMsoNormal =
style=3D'background:#EFEFEF'><strong><span lang=3DEN-US =
style=3D'font-size:7.0pt;font-family:"Tahoma","sans-serif";color:black'>F=
rom:</span></strong><span lang=3DEN-US =
style=3D'font-size:7.0pt;font-family:"Tahoma","sans-serif";color:black'>&=
nbsp;<a href=3D"mailto:chen.ran@zte.com.cn" =
target=3D"_blank">chen.ran@zte.com.cn</a><o:p></o:p></span></p></div><div=
><p class=3DMsoNormal style=3D'background:#EFEFEF'><strong><span =
lang=3DEN-US =
style=3D'font-size:7.0pt;font-family:"Tahoma","sans-serif";color:black'>D=
ate:</span></strong><span lang=3DEN-US =
style=3D'font-size:7.0pt;font-family:"Tahoma","sans-serif";color:black'>&=
nbsp;2020-07-20&nbsp;17:11<o:p></o:p></span></p></div><div><p =
class=3DMsoNormal style=3D'background:#EFEFEF'><strong><span =
lang=3DEN-US =
style=3D'font-size:7.0pt;font-family:"Tahoma","sans-serif";color:black'>T=
o:</span></strong><span lang=3DEN-US =
style=3D'font-size:7.0pt;font-family:"Tahoma","sans-serif";color:black'>&=
nbsp;<a href=3D"mailto:jie...dong@huawei.com" =
target=3D"_blank">jie.dong@huawei.com</a><o:p></o:p></span></p></div><div=
><p class=3DMsoNormal style=3D'background:#EFEFEF'><strong><span =
lang=3DEN-US =
style=3D'font-size:7.0pt;font-family:"Tahoma","sans-serif";color:black'>C=
C:</span></strong><span lang=3DEN-US =
style=3D'font-size:7.0pt;font-family:"Tahoma","sans-serif";color:black'>&=
nbsp;<a href=3D"mailto:james.n.guichard@futurewei.com" =
target=3D"_blank">james.n.guichard</a>; <a =
href=3D"mailto:spring@ietf.org" target=3D"_blank">spring</a>; <a =
href=3D"mailto:spring-chairs@ietf.org" =
target=3D"_blank">spring-chairs</a><o:p></o:p></span></p></div><div><p =
class=3DMsoNormal style=3D'background:#EFEFEF'><strong><span =
lang=3DEN-US =
style=3D'font-size:7.0pt;font-family:"Tahoma","sans-serif";color:black'>S=
ubject:</span></strong><span lang=3DEN-US =
style=3D'font-size:7.0pt;font-family:"Tahoma","sans-serif";color:black'>&=
nbsp;Re: [spring]WG Adoption =
Callfordraft-dong-spring-sr-for-enhanced-vpn<o:p></o:p></span></p></div><=
/div></div><div><div><div><p><span lang=3DEN-US =
style=3D'font-size:8.5pt;font-family:"Arial","sans-serif"'>Hi =
Jie,<o:p></o:p></span></p><p =
style=3D'margin:0cm;margin-bottom:.0001pt;line-height:13.7pt;background:w=
hite;box-sizing: border-box;min-height: 14px;outline: 0px =
!important'><span lang=3DEN-US =
style=3D'font-size:8.5pt;font-family:"Arial","sans-serif"'>IMO, the =
essence of the problem is that&nbsp;an identifier should be introduced =
to manage and maintain virtual network resources, &nbsp;not whether it =
is necessary to allocate resource related SIDs , because the current SR =
architecture already supports resource related SIDs allocation, there is =
no limit to that. For example, service SID (compuated resource related), =
Node/Adjacency SID(topological resource related), etc. Especially, SRv6 =
SID encourages programming anything. Can we say that these SIDs have no =
resource meaning?</span><span lang=3DEN-US =
style=3D'font-size:9.5pt;font-family:"Arial","sans-serif"'><o:p></o:p></s=
pan></p><p =
style=3D'margin:0cm;margin-bottom:.0001pt;line-height:13.7pt;background:w=
hite;box-sizing: border-box;min-height: 14px;outline: 0px =
!important'><span lang=3DEN-US =
style=3D'font-size:8.5pt;font-family:"Arial","sans-serif"'>Thus, =
draft-dong<span =
style=3D'background:white'>-spring-sr-for-enhanced-vpn&nbsp;</span>does =
not introduce any new content on the existing SR =
architecture.</span><span lang=3DEN-US =
style=3D'font-size:9.5pt;font-family:"Arial","sans-serif"'><o:p></o:p></s=
pan></p><p =
style=3D'margin:0cm;margin-bottom:.0001pt;line-height:13.7pt;background:w=
hite;box-sizing: border-box;min-height: 14px;outline: 0px =
!important'><span lang=3DEN-US =
style=3D'font-size:9.5pt;font-family:"Arial","sans-serif"'><o:p>&nbsp;</o=
:p></span></p><p =
style=3D'margin:0cm;margin-bottom:.0001pt;line-height:13.7pt;background:w=
hite;box-sizing: border-box;min-height: 14px;outline: 0px =
!important'><span lang=3DEN-US =
style=3D'font-size:8.5pt;font-family:"Arial","sans-serif"'>For =
identifier to manage and maintain virtual network resources, =
draft-peng-teas-network-slicing firstly to introduce a new identifier =
(AII) in the network to unifiedly identify the topology, computing and =
storage resource. Before that, other existing identities only focus on =
topology resources.</span><span lang=3DEN-US =
style=3D'font-size:9.5pt;font-family:"Arial","sans-serif"'><o:p></o:p></s=
pan></p><p><span lang=3DEN-US =
style=3D'font-size:8.5pt;font-family:"Arial","sans-serif"'><o:p>&nbsp;</o=
:p></span></p><p =
style=3D'margin:0cm;margin-bottom:.0001pt;line-height:13.7pt;background:w=
hite;box-sizing: border-box;min-height: 14px;outline: 0px =
!important'><span lang=3DEN-US =
style=3D'font-size:8.5pt;font-family:"Arial","sans-serif"'>Just for =
topology related resource, Segment Routing with MTR/Flex-algo/AII all =
support the division of multiple topological resource, and already =
support allocatoin of SID per MT-ID/algorithm/AII. Especially for link =
resource, the bandwidth of the same link can be subdivided into multiple =
resources.&nbsp;</span><span lang=3DEN-US =
style=3D'font-size:9.5pt;font-family:"Arial","sans-serif"'><o:p></o:p></s=
pan></p><p =
style=3D'margin:0cm;margin-bottom:.0001pt;line-height:13.7pt;background:w=
hite;box-sizing: border-box;min-height: 14px;outline: 0px =
!important'><span lang=3DEN-US =
style=3D'font-size:8.5pt;font-family:"Arial","sans-serif"'>If these =
subdivided resources exist in the form of sub-interface resources, =
L2-bundles(rfc8668) provides the method to assign adjacency-SID for =
members, In other words, the allocation of member adjacency SID has =
already been aware of these subdivided resources, each sub-interface has =
its own link attributes (bandwidth, delay, etc.).&nbsp;</span><span =
lang=3DEN-US =
style=3D'font-size:9.5pt;font-family:"Arial","sans-serif"'><o:p></o:p></s=
pan></p><p =
style=3D'margin:0cm;margin-bottom:.0001pt;line-height:13.7pt;background:w=
hite;box-sizing: border-box;min-height: 14px;outline: 0px =
!important'><span lang=3DEN-US =
style=3D'font-size:8.5pt;font-family:"Arial","sans-serif"'>If there are =
no sub-interface, the link can also be shared by multiple virtual =
networks to allocate multiple adjacency SIDs. Under the existing SR =
architecture, draft-peng-teas-network-slicing and =
draft-peng-lsr-algorithm-related-adjacency-sid have already described =
the allocation of adjacency SID per AII and algorithm.</span><span =
lang=3DEN-US =
style=3D'font-size:9.5pt;font-family:"Arial","sans-serif"'><o:p></o:p></s=
pan></p><p><span lang=3DEN-US =
style=3D'font-size:8.5pt;font-family:"Arial","sans-serif"'><o:p>&nbsp;</o=
:p></span></p><p =
style=3D'margin:0cm;margin-bottom:.0001pt;line-height:13.7pt;background:w=
hite;box-sizing: border-box;min-height: 14px;outline: 0px =
!important'><span lang=3DEN-US =
style=3D'font-size:8.5pt;font-family:"Arial","sans-serif"'>Obviously, =
the above SR with MTR/Flex-algo/AII are all complete solutions, =
including control plane extensions and forwarding mechanisms, and they =
need not make any changes to the SR architecture.</span><span =
lang=3DEN-US =
style=3D'font-size:9.5pt;font-family:"Arial","sans-serif"'><o:p></o:p></s=
pan></p><p =
style=3D'margin:0cm;margin-bottom:.0001pt;background:white;box-sizing: =
border-box;min-height: 14px;line-height:22...8571434020996px;outline: =
0px !important'><span lang=3DEN-US =
style=3D'font-size:8.5pt;font-family:"Arial","sans-serif"'>I wonder =
according to draft-dong<span =
style=3D'background:white'>-spring-sr-for-enhanced-vpn</span>, what can =
we do under its guidance, or what we can't do without this =
draft?&nbsp;</span><span lang=3DEN-US =
style=3D'font-size:9.5pt;font-family:"Arial","sans-serif"'><o:p></o:p></s=
pan></p><p =
style=3D'margin:0cm;margin-bottom:.0001pt;line-height:13.7pt;background:w=
hite;box-sizing: border-box;min-height: 14px;outline: 0px =
!important'><span lang=3DEN-US =
style=3D'font-size:9.5pt;font-family:"Arial","sans-serif"'><o:p>&nbsp;</o=
:p></span></p><p =
style=3D'margin:0cm;margin-bottom:.0001pt;line-height:13.7pt;background:w=
hite;box-sizing: border-box;min-height: 14px;outline: 0px =
!important'><span lang=3DEN-US =
style=3D'font-size:8.5pt;font-family:"Arial","sans-serif"'>Regards,</span=
><span lang=3DEN-US =
style=3D'font-size:9.5pt;font-family:"Arial","sans-serif"'><o:p></o:p></s=
pan></p><p =
style=3D'margin:0cm;margin-bottom:.0001pt;line-height:13.7pt;background:w=
hite;box-sizing: border-box;min-height: 14px;outline: 0px =
!important'><span lang=3DEN-US =
style=3D'font-size:8.5pt;font-family:"Arial","sans-serif"'>Ran</span><spa=
n lang=3DEN-US =
style=3D'font-size:9.5pt;font-family:"Arial","sans-serif"'><o:p></o:p></s=
pan></p><p =
style=3D'margin:0cm;margin-bottom:.0001pt;line-height:13.7pt;background:w=
hite;box-sizing: border-box;min-height: 14px;outline: 0px =
!important'><span lang=3DEN-US =
style=3D'font-size:9.5pt;font-family:"Arial","sans-serif"'><o:p>&nbsp;</o=
:p></span></p><p><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></p></div></div></div></blockquote><=
/div></div></div><div><div><div><p class=3DMsoNormal =
style=3D'background:#F5F6F8'><strong><span =
style=3D'font-family:=E5=AE=8B=E4=BD=93'>=E5=8F=91=E4=BB=B6=E4=BA=BA=EF=BC=
=9A</span></strong><span class=3Dzreadusername><span =
lang=3DEN-US>Dongjie(Jimmy) =
&lt;jie.dong@huawei.com&gt;</span></span><span =
lang=3DEN-US><o:p></o:p></span></p></div><div><p class=3DMsoNormal =
style=3D'background:#F5F6F8'><strong><span =
style=3D'font-family:=E5=AE=8B=E4=BD=93'>=E6=94=B6=E4=BB=B6=E4=BA=BA=EF=BC=
=9A</span></strong><span class=3Dzreadusername>=E9=99=88=E7=84=B6<span =
lang=3DEN-US>00080434;james.n.guichard@futurewei.com =
&lt;james.n.guichard@futurewei.com&gt;;spring@ietf.org =
&lt;spring@ietf.org&gt;;</span></span><span =
lang=3DEN-US><o:p></o:p></span></p></div><div><p class=3DMsoNormal =
style=3D'background:#F5F6F8'><strong><span =
style=3D'font-family:=E5=AE=8B=E4=BD=93'>=E6=8A=84=E9=80=81=E4=BA=BA=EF=BC=
=9A</span></strong><span class=3Dzreadusername><span =
lang=3DEN-US>spring-chairs@ietf.org =
&lt;spring-chairs@ietf.org&gt;;</span></span><span =
lang=3DEN-US><o:p></o:p></span></p></div><div><p class=3DMsoNormal =
style=3D'background:#F5F6F8'><strong><span =
style=3D'font-family:=E5=AE=8B=E4=BD=93'>=E6=97=A5 =E6=9C=9F =
=EF=BC=9A</span></strong><span lang=3DEN-US>2020</span>=E5=B9=B4<span =
lang=3DEN-US>07</span>=E6=9C=88<span =
lang=3DEN-US>16</span>=E6=97=A5<span lang=3DEN-US> =
19:50<o:p></o:p></span></p></div><div><p class=3DMsoNormal =
style=3D'background:#F5F6F8'><strong><span =
style=3D'font-family:=E5=AE=8B=E4=BD=93'>=E4=B8=BB =E9=A2=98 =
=EF=BC=9A<span lang=3DEN-US>RE: [spring] WG Adoption =
Callfordraft-dong-spring-sr-for-enhanced-vpn</span></span></strong><span =
lang=3DEN-US><o:p></o:p></span></p></div></div><div><div><div><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Hi Ran,</span><span lang=3DEN-US><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>&nbsp;</span><span lang=3DEN-US><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Thanks for your comments. While I don=E2=80=99t quite get your point =
of objection. &nbsp;Perhaps you have some misunderstanding about the =
relationship of the drafts mentioned.</span><span =
lang=3DEN-US><o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>&nbsp;</span><span lang=3DEN-US><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>RFC 8402 introduced the topology and service semantics of SR SID, =
this document proposed to add resource semantics to SIDs. Then MT or =
Flex-Algo are control plane mechanism for the distribution of =
topology-specific SIDs... The relationship with these documents are =
described in this draft.</span><span =
lang=3DEN-US><o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span =
lang=3DEN-US><o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>My reading of draft-peng in LSR and TEAS is that they may provide an =
option of control plane extensions for the resource-aware SIDs defined =
in this document, which just proves that the enhancement in this =
document is in the right direction, and more work based on it could be =
done in relevant WGs.</span><span lang=3DEN-US><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>&nbsp;</span><span lang=3DEN-US><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Thus my suggestion would be to have the SR enhancement adopted in =
SPRING first, then more discussion about its control plane could happen =
in other WGs as the next step. &nbsp;</span><span =
lang=3DEN-US><o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>&nbsp;</span><span lang=3DEN-US><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Hope this helps.</span><span lang=3DEN-US><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>&nbsp;</span><span lang=3DEN-US><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Best regards,</span><span lang=3DEN-US><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Jie</span><span lang=3DEN-US><o:p></o:p></span></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><a =
name=3D"_MailEndCompose"></a><span lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>&nbsp;</span><span lang=3DEN-US><o:p></o:p></span></p><div =
style=3D'border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm =
4.0pt'><div><div style=3D'border:none;border-top:solid #E1E1E1 =
1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><strong><spa=
n lang=3DEN-US =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>From:</span=
></strong><span lang=3DEN-US =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'> spring =
[mailto:spring-bounces@ietf.org]<strong><span =
style=3D'font-family:"Calibri","sans-serif"'>On Behalf Of =
</span></strong>chen.ran@zte.com.cn<br><strong><span =
style=3D'font-family:"Calibri","sans-serif"'>Sent:</span></strong> =
Thursday, July 16, 2020 5:20 PM<br><strong><span =
style=3D'font-family:"Calibri","sans-serif"'>To:</span></strong> =
james.n.guichard@futurewei.com; spring@ietf.org<br><strong><span =
style=3D'font-family:"Calibri","sans-serif"'>Cc:</span></strong> =
spring-chairs@ietf.org<br><strong><span =
style=3D'font-family:"Calibri","sans-serif"'>Subject:</span></strong> =
Re: [spring] WG Adoption Call =
fordraft-dong-spring-sr-for-enhanced-vpn</span><span =
lang=3DEN-US><o:p></o:p></span></p></div></div><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span =
lang=3DEN-US>&nbsp;<o:p></o:p></span></p><div><p><span lang=3DEN-US =
style=3D'font-family:"Arial","sans-serif";background:white'>Dear =
WG,</span><span lang=3DEN-US><o:p></o:p></span></p><p =
style=3D'margin:0cm;margin-bottom:.0001pt;line-height:17.15pt;background:=
white;box-sizing: border-box;min-height: 14px;outline: 0px =
!important'><span lang=3DEN-US =
style=3D'font-family:"Arial","sans-serif"'>I don't support WG =
adoption.</span><span lang=3DEN-US><o:p></o:p></span></p><p =
style=3D'margin:0cm;margin-bottom:.0001pt;line-height:17.15pt;background:=
white;box-sizing: border-box;min-height: 14px;outline: 0px =
!important'><span lang=3DEN-US =
style=3D'font-family:"Arial","sans-serif"'>It is not a new idea for each =
Virtual Network to have its own SIDs.</span><span =
lang=3DEN-US><o:p></o:p></span></p><p =
style=3D'margin:0cm;margin-bottom:.0001pt;line-height:17.15pt;background:=
white;box-sizing: border-box;min-height: 14px;outline: 0px =
!important'><span lang=3DEN-US =
style=3D'font-family:"Arial","sans-serif"'>e.g. The earlist description =
of the SID be allocated per flex-algorithm and related =
metric</span><span lang=3DEN-US><o:p></o:p></span></p><p =
style=3D'margin:0cm;margin-bottom:.0001pt;line-height:17.15pt;background:=
white;box-sizing: border-box;min-height: 14px;outline: 0px =
!important'><span lang=3DEN-US =
style=3D'font-family:"Arial","sans-serif"'>&nbsp;information was in =
draft-hegdeppsenak-isis-sr-flex-algo-00(2017.7.17) (now is =
draft-ietf-isis-sr-flex-algo) .&nbsp;</span><span =
lang=3DEN-US><o:p></o:p></span></p><p =
style=3D'margin:0cm;margin-bottom:.0001pt;line-height:17.15pt;background:=
white;box-sizing: border-box;min-height: 14px;outline: 0px =
!important'><span lang=3DEN-US =
style=3D'font-family:"Arial","sans-serif"'>The earlist description of =
the SID be allocated per MT was in =
draft-filsfils-spring-segment-routing-04(2014.7...3)</span><span =
lang=3DEN-US><o:p></o:p></span></p><p =
style=3D'margin:0cm;margin-bottom:.0001pt;line-height:17.15pt;background:=
white;box-sizing: border-box;min-height: 14px;outline: 0px =
!important'><span lang=3DEN-US =
style=3D'font-family:"Arial","sans-serif"'>(now is RFC8402 ), and =
draft-peng-lsr-network-slicing-00(2019.2.25) describe the</span><span =
lang=3DEN-US><o:p></o:p></span></p><p =
style=3D'margin:0cm;margin-bottom:.0001pt;line-height:17.15pt;background:=
white;box-sizing: border-box;min-height: 14px;outline: 0px =
!important'><span lang=3DEN-US =
style=3D'font-family:"Arial","sans-serif"'>SID be allocated per =
AII(alias alice). &nbsp;For slice resources,<a =
href=3D"https://tools.ietf.org/html/draft-peng-teas-network-slicing-03" =
target=3D"_blank"><span =
style=3D'color:#337AB7'>https://tools.ietf.org/html/draft-peng-teas-netwo=
rk-slicing-03</span></a>&nbsp;&nbsp;</span><span =
lang=3DEN-US><o:p></o:p></span></p><p =
style=3D'margin:0cm;margin-bottom:.0001pt;line-height:17.15pt;background:=
white;box-sizing: border-box;min-height: 14px;outline: 0px =
!important'><span lang=3DEN-US =
style=3D'font-family:"Arial","sans-serif"'>induced slice-id(AII) for =
slice resources management, and can differentiate them (e.g. L2 link or =
L3 interface,</span><span lang=3DEN-US><o:p></o:p></span></p><p =
style=3D'margin:0cm;margin-bottom:.0001pt;line-height:17.15pt;background:=
white;box-sizing: border-box;min-height: 14px;outline: 0px =
!important'><span lang=3DEN-US =
style=3D'font-family:"Arial","sans-serif"'>section 7 ), and&nbsp;<span =
style=3D'background:white'>how to compute SR-BE or SR-TE path according =
to AII combined with other criteria.</span></span><span =
lang=3DEN-US><o:p></o:p></span></p><p =
style=3D'margin:0cm;margin-bottom:.0001pt;line-height:17.15pt;background:=
white;box-sizing: border-box;min-height: 14px;outline: 0px =
!important'><span lang=3DEN-US =
style=3D'font-family:"Arial","sans-serif"'>&nbsp;</span><span =
lang=3DEN-US><o:p></o:p></span></p><p =
style=3D'margin:0cm;margin-bottom:.0001pt;line-height:17.15pt;background:=
white;box-sizing: border-box;min-height: 14px;outline: 0px =
!important'><span lang=3DEN-US =
style=3D'font-family:"Arial","sans-serif"'>Regards,</span><span =
lang=3DEN-US><o:p></o:p></span></p><p =
style=3D'margin:0cm;margin-bottom:.0001pt;line-height:17.15pt;background:=
white;box-sizing: border-box;min-height: 14px;outline: 0px =
!important'><span lang=3DEN-US =
style=3D'font-family:"Arial","sans-serif"'>Ran</span><span =
lang=3DEN-US><o:p></o:p></span></p><p><span lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Arial","sans-serif"'>&nbsp;</span>=
<span lang=3DEN-US><o:p></o:p></span></p><p><span lang=3DEN-US =
style=3D'font-family:"Arial","sans-serif"'><br><span =
style=3D'background:white'>-----Original&nbsp;Message-----</span><br><spa=
n style=3D'background:white'>From:&nbsp;spring&nbsp;&lt;<a =
href=3D"mailto:spring-bounces@ietf.org" =
target=3D"_blank">spring-bounces@ietf.org</a>&gt;&nbsp;On&nbsp;Behalf&nbs=
p;Of&nbsp;James&nbsp;Guichard</span><br><span =
style=3D'background:white'>Sent:&nbsp;Wednesday,&nbsp;July&nbsp;15,&nbsp;=
2020&nbsp;8:17&nbsp;PM</span><br><span =
style=3D'background:white'>To:&nbsp;<a href=3D"mailto:spring@ietf.org" =
target=3D"_blank">spring@ietf.org</a></span><br><span =
style=3D'background:white'>Cc:&nbsp;<a =
href=3D"mailto:spring-chairs@ietf.org" =
target=3D"_blank">spring-chairs@ietf.org</a></span><br><span =
style=3D'background:white'>Subject:&nbsp;[spring]&nbsp;WG&nbsp;Adoption&n=
bsp;Call&nbsp;for&nbsp;draft-dong-spring-sr-for-enhanced-vpn</span><br><b=
r><span style=3D'background:white'>Dear&nbsp;WG:</span><br><br><span =
style=3D'background:white'>&nbsp;&nbsp;</span><br><br><span =
style=3D'background:white'>This&nbsp;email&nbsp;begins&nbsp;a&nbsp;2&nbsp=
;week&nbsp;WG&nbsp;adoption&nbsp;call&nbsp;for&nbsp;<a =
href=3D"https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhance=
d-vpn/" =
target=3D"_blank">https://datatracker.ietf.org/doc/draft-dong-spring-sr-f=
or-enhanced-vpn/</a>&nbsp;&lt;<a =
href=3D"https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhance=
d-vpn/" =
target=3D"_blank">https://datatracker.ietf.org/doc/draft-dong-spring-sr-f=
or-enhanced-vpn/</a>&gt;&nbsp;&nbsp;ending&nbsp;Wednesday&nbsp;29th&nbsp;=
July&nbsp;2020.&nbsp;&nbsp;</span><br><br><span =
style=3D'background:white'>&nbsp;&nbsp;</span><br><br><span =
style=3D'background:white'>Please&nbsp;speak&nbsp;up&nbsp;if&nbsp;you&nbs=
p;support&nbsp;or&nbsp;oppose&nbsp;adopting&nbsp;this&nbsp;document&nbsp;=
into&nbsp;the&nbsp;WG.&nbsp;Please&nbsp;also&nbsp;provide&nbsp;comments/r=
easons&nbsp;for&nbsp;that&nbsp;support&nbsp;(or&nbsp;lack&nbsp;thereof).&=
nbsp;Silence&nbsp;will&nbsp;not&nbsp;be&nbsp;considered&nbsp;consent.</sp=
an><br><br><span =
style=3D'background:white'>&nbsp;&nbsp;</span><br><br><span =
style=3D'background:white'>Thanks!</span><br><br><span =
style=3D'background:white'>&nbsp;&nbsp;</span><br><br><span =
style=3D'background:white'>Jim,&nbsp;Joel&nbsp;&amp;&nbsp;Bruno</span><br=
><br><span style=3D'background:white'>&nbsp;&nbsp;</span><br><br><span =
style=3D'background:white'>&nbsp;&nbsp;</span><br><br><span =
style=3D'background:white'>&nbsp;&nbsp;</span><br><br><br><span =
style=3D'background:white'>______________________________________________=
_</span><br><span =
style=3D'background:white'>spring&nbsp;mailing&nbsp;list</span><br><span =
style=3D'background:white'><a href=3D"mailto:spring@ietf.org" =
target=3D"_blank">spring@ietf.org</a></span></span><span =
lang=3DEN-US><o:p></o:p></span></p><p><span lang=3DEN-US =
style=3D'font-size:10.5pt;font-family:"Arial","sans-serif"'>&nbsp;</span>=
<span =
lang=3DEN-US><o:p></o:p></span></p></div></div></div></div></div></div></=
div></div></div><p><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></p></div></div></body></html>
------=_NextPart_000_020A_01D660E6.12017BC0--




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From: "Ketan Talaulikar (ketant)" <ketant@cisco.com>
To: James Guichard <james.n.guichard@futurewei.com>, "spring@ietf.org" <spring@ietf.org>
CC: "spring-chairs@ietf.org" <spring-chairs@ietf.org>
Thread-Topic: WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn
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Subject: Re: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn
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Hi All,



This document seems to talk of "resource group" SIDs that is something inte=
resting - specifically for SR-MPLS (I don't see the same relevance for SRv6=
).



I support the adoption of (what is coming across to me as) this concept of =
a new "resource group" scope for SR SIDs as a work item for the Spring WG. =
Rest should be moved into a separate informational document since all of th=
at seem unrelated, nothing new and not suitable for a standards track docum=
ent.



Therefore, the draft needs more work before it is ready for adoption.



Following are my more specific comments on this draft:



  1.  SR SIDs that are scoped to a MT or Algo or MT+Algo combination can al=
ready be associated with some "resources" on routers today. There is nothin=
g new here to be standardized. If there is interest in the WG for documenti=
ng how resources are carved out and assigned to say a Flex-Algo and/or MT s=
coped SIDs, it should be in an independent informational document. There se=
ems to be a lot of overlap of this with work in the TEAS WG. Much of Sectio=
n 2 seems to be of this nature.



  1.  IGP SR SIDs are today scoped to an MT and Algo. This draft seems to b=
e introducing another "resource group" type of scoping within an MT+Algo co=
ntext for Prefix and Adjacency SIDs. When packets using SID labels belongin=
g to a "resource group" arrive at a router, it helps the router associate t=
hose service flows to the QoS profile provisioned for that "resource group"=
 on that specific link/router. This is what it seems is the whole essence o=
f the proposal - but this is not clear in the document.  The routing of the=
se SIDs is going to follow whatever MT and/or FlexAlgo computation provides=
 - therefore, I am not sure I understand how these "resource group" SIDs ar=
e creating some new "Virtual Network Topology". Isn't this just a "network =
slice" of resources?



  1.  I am not sure how the discussion in Section 3 is bringing in anything=
 new and again it is purely informational in nature. Perhaps I am not able =
to follow the point.



  1.  Much of Section 4 is also similarly informational in nature and about=
 how some vendor/operator may want to use "resource group" SIDs. However, i=
t does not formally and normatively define this new concept of "resource gr=
oup" SIDs.  Other implementations and operators may choose to do this diffe=
rently - so why standardize this one way? Discussion like assigning/allocat=
ion of SIDs, distribution of their information and setting up paths through=
 the network using these SIDs are basic concepts of SR - not sure if they n=
eed description and repetition in a standards track document.



  1.  Section 5, Scalability is not giving the right picture. The proposal =
ends replicating each SID label forwarding entry (e.g. for prefix SID) mult=
iplied by each "resource group" on each router simply for the sake of ident=
ifying QoS resources for it. That is not really scalable and will end up co=
nsuming a large set of label forwarding entries on the routers depending on=
 the network scale and now many of these "slices" are instantiated.



  1.  Finally, I have an objection to the use of terms like "enhanced VPN" =
and "VPN+" in the document that sound more like marketing terms than techni=
cal terminologies. There was a similar comment made by one of the Spring ch=
airs for a previous version, but I don't see it being addressed. VPNs might=
 be but one of the services that can leverage the resource aware SIDs in th=
eir underlay.



I look forward to responses from the authors and updates to the document to=
 address these comments.



Thanks,

Ketan


From: spring <spring-bounces@ietf.org> On Behalf Of James Guichard
Sent: 15 July 2020 16:47
To: spring@ietf.org
Cc: spring-chairs@ietf.org
Subject: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vp=
n

Dear WG:

This email begins a 2 week WG adoption call for https://datatracker.ietf.or=
g/doc/draft-dong-spring-sr-for-enhanced-vpn/ ending Wednesday 29th July 202=
0.

Please speak up if you support or oppose adopting this document into the WG=
. Please also provide comments/reasons for that support (or lack thereof). =
Silence will not be considered consent.

Thanks!

Jim, Joel & Bruno




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<span class=3D"normaltextrun">Hi All,</span><span class=3D"eop">&nbsp;<o:p>=
</o:p></span></p>
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lign:baseline;user-select: text;-webkit-user-drag: none;-webkit-tap-highlig=
ht-color: transparent;overflow-wrap: break-word">
<span class=3D"normaltextrun">This document&nbsp;seems to talk of&nbsp;&#82=
20;resource&nbsp;group&#8221;&nbsp;SIDs that is&nbsp;something&nbsp;interes=
ting&nbsp;&#8211; specifically for SR-MPLS&nbsp;(I don&#8217;t see the same=
 relevance for SRv6).</span><span class=3D"eop">&nbsp;<o:p></o:p></span></p=
>
<p class=3D"paragraph" style=3D"margin:0cm;margin-bottom:.0001pt;vertical-a=
lign:baseline">
<span style=3D"font-size:9.0pt;font-family:&quot;Segoe UI&quot;,sans-serif"=
><o:p>&nbsp;</o:p></span></p>
<p class=3D"paragraph" style=3D"margin:0cm;margin-bottom:.0001pt;vertical-a=
lign:baseline;user-select: text;-webkit-user-drag: none;-webkit-tap-highlig=
ht-color: transparent;overflow-wrap: break-word">
<span class=3D"normaltextrun">I support the adoption of (what is coming acr=
oss to me as) this&nbsp;concept of&nbsp;a new&nbsp;&#8220;resource group&#8=
221;&nbsp;scope&nbsp;for SR SIDs as a work item for the Spring WG. Rest sho=
uld be moved into a separate informational document&nbsp;since all of&nbsp;=
that seem
 unrelated,&nbsp;nothing new and not suitable for a&nbsp;standards&nbsp;tra=
ck document.</span><span class=3D"eop">&nbsp;<o:p></o:p></span></p>
<p class=3D"paragraph" style=3D"margin:0cm;margin-bottom:.0001pt;vertical-a=
lign:baseline">
<span style=3D"font-size:9.0pt;font-family:&quot;Segoe UI&quot;,sans-serif"=
><o:p>&nbsp;</o:p></span></p>
<p class=3D"paragraph" style=3D"margin:0cm;margin-bottom:.0001pt;vertical-a=
lign:baseline;user-select: text;-webkit-user-drag: none;-webkit-tap-highlig=
ht-color: transparent;overflow-wrap: break-word">
<span class=3D"normaltextrun">Therefore,&nbsp;the draft needs more work bef=
ore it is ready for adoption.&nbsp;</span><span class=3D"eop">&nbsp;</span>=
<span style=3D"font-size:9.0pt;font-family:&quot;Segoe UI&quot;,sans-serif"=
><o:p></o:p></span></p>
<p class=3D"paragraph" style=3D"margin:0cm;margin-bottom:.0001pt;vertical-a=
lign:baseline;user-select: text;-webkit-user-drag: none;-webkit-tap-highlig=
ht-color: transparent;overflow-wrap: break-word">
<span class=3D"normaltextrun"><o:p>&nbsp;</o:p></span></p>
<p class=3D"paragraph" style=3D"margin:0cm;margin-bottom:.0001pt;vertical-a=
lign:baseline">
<span class=3D"normaltextrun">Following are&nbsp;my&nbsp;more&nbsp;specific=
 comments&nbsp;on&nbsp;this draft:</span><span class=3D"eop">&nbsp;<o:p></o=
:p></span></p>
<p class=3D"paragraph" style=3D"margin:0cm;margin-bottom:.0001pt;vertical-a=
lign:baseline">
<span style=3D"font-size:9.0pt;font-family:&quot;Segoe UI&quot;,sans-serif"=
><o:p>&nbsp;</o:p></span></p>
<ol style=3D"margin-top:0cm;user-select: text;-webkit-user-drag: none;-webk=
it-tap-highlight-color: transparent;cursor:text;overflow:visible" start=3D"=
1" type=3D"1">
<li class=3D"paragraph" style=3D"margin-top:0cm;margin-bottom:0cm;margin-bo=
ttom:.0001pt;mso-list:l6 level1 lfo7;vertical-align:baseline;user-select: t=
ext;-webkit-user-drag: none;-webkit-tap-highlight-color: transparent;cursor=
:text;overflow:visible">
<span class=3D"normaltextrun">SR SIDs that are scoped to a MT or Algo or&nb=
sp;MT+Algo&nbsp;combination can already be associated with some &#8220;reso=
urces&#8221; on routers today. There&nbsp;is nothing new&nbsp;here to be st=
andardized. If there is interest in the WG for documenting&nbsp;how resourc=
es
 are carved out and assigned to say a Flex-Algo and/or MT scoped SIDs, it s=
hould be in an independent informational&nbsp;document.&nbsp;There seems to=
 be a lot of overlap of this with work in the TEAS WG.&nbsp;Much of Section=
 2&nbsp;seems to be&nbsp;of this nature.</span><span class=3D"eop">&nbsp;<o=
:p></o:p></span></li></ol>
<p class=3D"paragraph" style=3D"mso-margin-top-alt:0cm;margin-right:0cm;mar=
gin-bottom:0cm;margin-left:18.0pt;margin-bottom:.0001pt;vertical-align:base=
line;user-select: text;-webkit-user-drag: none;-webkit-tap-highlight-color:=
 transparent;overflow-wrap: break-word">
<o:p>&nbsp;</o:p></p>
<ol style=3D"margin-top:0cm;user-select: text;-webkit-user-drag: none;-webk=
it-tap-highlight-color: transparent;cursor:text;overflow:visible" start=3D"=
2" type=3D"1">
<li class=3D"paragraph" style=3D"margin-top:0cm;margin-bottom:0cm;margin-bo=
ttom:.0001pt;mso-list:l6 level1 lfo7;vertical-align:baseline;user-select: t=
ext;-webkit-user-drag: none;-webkit-tap-highlight-color: transparent;cursor=
:text;overflow:visible">
<span class=3D"normaltextrun">IGP SR SIDs are today scoped to an MT and Alg=
o. This draft seems to be introducing another &#8220;resource group&#8221; =
type of scoping within an&nbsp;MT+Algo&nbsp;context for Prefix and Adjacenc=
y SIDs.&nbsp;When packets using SID&nbsp;labels&nbsp;belonging to&nbsp;a&nb=
sp;&#8220;resource
 group&#8221; arrive at a router, it helps the router associate those servi=
ce flows to the QoS profile provisioned for that &#8220;resource group&#822=
1;&nbsp;on that specific link/router. This is what&nbsp;it&nbsp;seems&nbsp;=
is the whole essence&nbsp;of the proposal &#8211; but&nbsp;this&nbsp;is not=
&nbsp;clear&nbsp;in the document.&nbsp;
 The routing of these SIDs is going to follow whatever MT and/or&nbsp;FlexA=
lgo&nbsp;computation provides &#8211; therefore, I am not sure I understand=
 how these &#8220;resource group&#8221; SIDs are creating some&nbsp;new&nbs=
p;&#8220;Virtual Network Topology&#8221;.&nbsp;Isn&#8217;t this just a &#82=
20;network slice&#8221; of resources?</span><span class=3D"eop">&nbsp;<o:p>=
</o:p></span></li></ol>
<p class=3D"MsoListParagraph" style=3D"user-select: text;-webkit-user-drag:=
 none;-webkit-tap-highlight-color: transparent;overflow-wrap: break-word">
<o:p>&nbsp;</o:p></p>
<ol style=3D"margin-top:0cm" start=3D"3" type=3D"1">
<li class=3D"paragraph" style=3D"margin-top:0cm;margin-bottom:0cm;margin-bo=
ttom:.0001pt;mso-list:l6 level1 lfo7;vertical-align:baseline">
<span class=3D"normaltextrun">I am not sure how the discussion in Section 3=
 is bringing in anything new and again it is purely informational in nature=
.&nbsp;Perhaps I am not able to follow the point.</span><span class=3D"eop"=
>&nbsp;<o:p></o:p></span></li></ol>
<p class=3D"paragraph" style=3D"mso-margin-top-alt:0cm;margin-right:0cm;mar=
gin-bottom:0cm;margin-left:18.0pt;margin-bottom:.0001pt;vertical-align:base=
line;user-select: text;-webkit-user-drag: none;-webkit-tap-highlight-color:=
 transparent;overflow-wrap: break-word">
<o:p>&nbsp;</o:p></p>
<ol style=3D"margin-top:0cm;user-select: text;-webkit-user-drag: none;-webk=
it-tap-highlight-color: transparent;cursor:text;overflow:visible" start=3D"=
4" type=3D"1">
<li class=3D"paragraph" style=3D"margin-top:0cm;margin-bottom:0cm;margin-bo=
ttom:.0001pt;mso-list:l6 level1 lfo7;vertical-align:baseline;user-select: t=
ext;-webkit-user-drag: none;-webkit-tap-highlight-color: transparent;cursor=
:text;overflow:visible">
<span class=3D"normaltextrun">Much of Section 4 is also similarly informati=
onal in nature and&nbsp;about&nbsp;how some vendor/operator may want to use=
 &#8220;resource group&#8221; SIDs. However,&nbsp;it&nbsp;does&nbsp;not&nbs=
p;formally and normatively define this new concept of &#8220;resource group=
&#8221; SIDs.&nbsp;&nbsp;Other
 implementations and operators may choose to do this differently &#8211; so=
 why standardize&nbsp;this&nbsp;one way?&nbsp;Discussion like assigning/all=
ocation of SIDs, distribution of their information and setting up paths thr=
ough the network using these SIDs are basic concepts
 of SR&nbsp;- not sure if they need description and repetition in a&nbsp;st=
andards&nbsp;track document.</span><span class=3D"eop">&nbsp;<o:p></o:p></s=
pan></li></ol>
<p class=3D"MsoListParagraph" style=3D"user-select: text;-webkit-user-drag:=
 none;-webkit-tap-highlight-color: transparent;overflow-wrap: break-word">
<o:p>&nbsp;</o:p></p>
<ol style=3D"margin-top:0cm" start=3D"5" type=3D"1">
<li class=3D"paragraph" style=3D"margin-top:0cm;margin-bottom:0cm;margin-bo=
ttom:.0001pt;mso-list:l6 level1 lfo7;vertical-align:baseline">
<span class=3D"normaltextrun">Section 5, Scalability is not giving the righ=
t picture. The proposal ends replicating each SID label forwarding entry (e=
.g. for prefix SID) multiplied by each &#8220;resource group&#8221; on each=
 router simply for&nbsp;the sake of identifying QoS
 resources for it.&nbsp;That is not&nbsp;really scalable&nbsp;and will end =
up consuming a large set of&nbsp;label&nbsp;forwarding entries&nbsp;on the =
routers depending on the network scale and now many of these &#8220;slices&=
#8221; are&nbsp;instantiated.</span><span class=3D"eop"><span lang=3D"EN-US=
">&nbsp;</span></span><span class=3D"eop"><span lang=3D"EN-US"><o:p></o:p><=
/span></span></li></ol>
<p class=3D"MsoListParagraph" style=3D"user-select: text;-webkit-user-drag:=
 none;-webkit-tap-highlight-color: transparent;overflow-wrap: break-word">
<span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<ol style=3D"margin-top:0cm" start=3D"6" type=3D"1">
<li class=3D"paragraph" style=3D"margin-top:0cm;margin-bottom:0cm;margin-bo=
ttom:.0001pt;mso-list:l6 level1 lfo7;vertical-align:baseline">
<span class=3D"normaltextrun">Finally,&nbsp;I have an objection to the use =
of terms like &#8220;enhanced VPN&#8221; and &#8220;VPN+&#8221; in the docu=
ment&nbsp;that sound more like marketing terms than technical terminologies=
. There was a similar comment made by&nbsp;one of the Spring chairs for a
 previous&nbsp;version,&nbsp;but I don&#8217;t see it being addressed.&nbsp=
;VPNs might be but one of the services that can leverage the resource aware=
 SIDs in their underlay.</span><span class=3D"eop">&nbsp;</span><o:p></o:p>=
</li></ol>
<p class=3D"paragraph" style=3D"margin:0cm;margin-bottom:.0001pt;vertical-a=
lign:baseline;user-select: text;-webkit-user-drag: none;-webkit-tap-highlig=
ht-color: transparent;overflow-wrap: break-word">
<span class=3D"normaltextrun"><o:p>&nbsp;</o:p></span></p>
<p class=3D"paragraph" style=3D"margin:0cm;margin-bottom:.0001pt;vertical-a=
lign:baseline">
<span class=3D"normaltextrun">I look forward to responses from the authors =
and updates to the document to address these comments.<o:p></o:p></span></p=
>
<p class=3D"paragraph" style=3D"margin:0cm;margin-bottom:.0001pt;vertical-a=
lign:baseline">
<span class=3D"normaltextrun"><o:p>&nbsp;</o:p></span></p>
<p class=3D"paragraph" style=3D"margin:0cm;margin-bottom:.0001pt;vertical-a=
lign:baseline">
<span class=3D"normaltextrun">Thanks,</span><span class=3D"eop">&nbsp;</spa=
n><span style=3D"font-size:9.0pt;font-family:&quot;Segoe UI&quot;,sans-seri=
f"><o:p></o:p></span></p>
<p class=3D"paragraph" style=3D"margin:0cm;margin-bottom:.0001pt;vertical-a=
lign:baseline;user-select: text;-webkit-user-drag: none;-webkit-tap-highlig=
ht-color: transparent;overflow-wrap: break-word">
<span class=3D"normaltextrun">Ketan</span><span class=3D"eop">&nbsp;</span>=
<span style=3D"font-size:9.0pt;font-family:&quot;Segoe UI&quot;,sans-serif"=
><o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-language:EN-US"><o:p>&nbs=
p;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-language:EN-US"><o:p>&nbs=
p;</o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US">From:</span></b><span lang=
=3D"EN-US"> spring &lt;spring-bounces@ietf.org&gt;
<b>On Behalf Of </b>James Guichard<br>
<b>Sent:</b> 15 July 2020 16:47<br>
<b>To:</b> spring@ietf.org<br>
<b>Cc:</b> spring-chairs@ietf.org<br>
<b>Subject:</b> [spring] WG Adoption Call for draft-dong-spring-sr-for-enha=
nced-vpn<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-fareast-language:Z=
H-CN">Dear WG:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-fareast-language:Z=
H-CN"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-fareast-language:Z=
H-CN">This email begins a 2 week WG adoption call for
<a href=3D"https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanc=
ed-vpn/">
https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/</a>=
 ending Wednesday 29<sup>th</sup> July 2020.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-fareast-language:Z=
H-CN"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-fareast-language:Z=
H-CN">Please speak up if you support or oppose adopting this document into =
the WG. Please also provide comments/reasons for that support (or lack ther=
eof). Silence will not be considered consent.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-fareast-language:Z=
H-CN"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-fareast-language:Z=
H-CN">Thanks!<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-fareast-language:Z=
H-CN"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"mso-fareast-language:Z=
H-CN">Jim, Joel &amp; Bruno<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
</div>
</body>
</html>

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From: "Dongjie (Jimmy)" <jie.dong@huawei.com>
To: "Ketan Talaulikar (ketant)" <ketant=40cisco.com@dmarc.ietf.org>, "James Guichard" <james.n.guichard@futurewei.com>, "spring@ietf.org" <spring@ietf.org>
CC: "spring-chairs@ietf.org" <spring-chairs@ietf.org>
Thread-Topic: WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn
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Subject: Re: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn
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Hi Ketan,

Thanks for your comment and support. Please see some replies inline:

From: spring [mailto:spring-bounces@ietf.org] On Behalf Of Ketan Talaulikar=
 (ketant)
Sent: Friday, July 24, 2020 2:27 AM
To: James Guichard <james.n.guichard@futurewei.com<mailto:james.n.guichard@=
futurewei.com>>; spring@ietf.org<mailto:spring@ietf.org>
Cc: spring-chairs@ietf.org<mailto:spring-chairs@ietf.org>
Subject: Re: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhance=
d-vpn


Hi All,



This document seems to talk of "resource group" SIDs that is something inte=
resting - specifically for SR-MPLS (I don't see the same relevance for SRv6=
).



[Jie] SR-MPLS is used in the example described in this document, while the =
concept of resource-aware SID is generic to SR, and can be applicable to bo=
th SR-MPLS and SRv6.



I support the adoption of (what is coming across to me as) this concept of =
a new "resource group" scope for SR SIDs as a work item for the Spring WG. =
Rest should be moved into a separate informational document since all of th=
at seem unrelated, nothing new and not suitable for a standards track docum=
ent.



[Jie] Thanks for supporting the introduction of resource semantics to SR SI=
Ds.



A group of SR SIDs with such semantics can be used to build resource guaran=
teed SR paths or virtual networks. The mechanism and procedure for resource=
 guaranteed virtual network is highlighted because the advantage of SR (no =
per-path state) can be utilized in per-virtual network resource allocation,=
 which is more scalable than the per-path resource reservation in RSVP-TE. =
Thus it is an important and integral part of this document, as is reflected=
 in the document title.



Therefore, the draft needs more work before it is ready for adoption.



Following are my more specific comments on this draft:



1)      SR SIDs that are scoped to a MT or Algo or MT+Algo combination can =
already be associated with some "resources" on routers today. There is noth=
ing new here to be standardized. If there is interest in the WG for documen=
ting how resources are carved out and assigned to say a Flex-Algo and/or MT=
 scoped SIDs, it should be in an independent informational document. There =
seems to be a lot of overlap of this with work in the TEAS WG. Much of Sect=
ion 2 seems to be of this nature.



[Jie] In this document resource refers to the data plane resource for packe=
t processing and forwarding, which is not covered in the existing MT/Algo m=
echanism. As stated in this document, MT/Algo or the combination can be use=
d as the control plane for advertising the topology and the resource attrib=
utes of the virtual network, the details of the control plane mechanism and=
 extensions are specified in separate documents.



2)      IGP SR SIDs are today scoped to an MT and Algo. This draft seems to=
 be introducing another "resource group" type of scoping within an MT+Algo =
context for Prefix and Adjacency SIDs. When packets using SID labels belong=
ing to a "resource group" arrive at a router, it helps the router associate=
 those service flows to the QoS profile provisioned for that "resource grou=
p" on that specific link/router. This is what it seems is the whole essence=
 of the proposal - but this is not clear in the document.  The routing of t=
hese SIDs is going to follow whatever MT and/or FlexAlgo computation provid=
es - therefore, I am not sure I understand how these "resource group" SIDs =
are creating some new "Virtual Network Topology". Isn't this just a "networ=
k slice" of resources?



[Jie] As defined in section 1, the resource semantic is one additional dime=
nsion represented by SIDs, which means the SID can be used to represent top=
ology or function, together with the set of resources used to process the p=
acket according to the function. The forwarding behavior of SIDs with both =
topology and resource semantics are described in section 2. In summary, the=
 topology and resource are two aspects of the virtual network described in =
this document.



3)      I am not sure how the discussion in Section 3 is bringing in anythi=
ng new and again it is purely informational in nature.. Perhaps I am not ab=
le to follow the point.



[Jie] It provides an overview of the associated control plane mechanisms, w=
hich is useful information to correlate this document and the control plane=
 mechanisms needed. The details are provided in the control plane drafts in=
 corresponding WGs.



4)      Much of Section 4 is also similarly informational in nature and abo=
ut how some vendor/operator may want to use "resource group" SIDs. However,=
 it does not formally and normatively define this new concept of "resource =
group" SIDs.  Other implementations and operators may choose to do this dif=
ferently - so why standardize this one way? Discussion like assigning/alloc=
ation of SIDs, distribution of their information and setting up paths throu=
gh the network using these SIDs are basic concepts of SR - not sure if they=
 need description and repetition in a standards track document.



[Jie] This section provides the procedures of using resource-aware SIDs to =
build resource guaranteed virtual networks. These are based on the existing=
 SR mechanism with procedures related to the allocation of resource-aware S=
IDs and the generation of corresponding forwarding entries. The procedure a=
nd example in this section is helpful for understanding the relationship an=
d difference from the existing SR mechanism.



5)      Section 5, Scalability is not giving the right picture. The proposa=
l ends replicating each SID label forwarding entry (e..g. for prefix SID) m=
ultiplied by each "resource group" on each router simply for the sake of id=
entifying QoS resources for it. That is not really scalable and will end up=
 consuming a large set of label forwarding entries on the routers depending=
 on the network scale and now many of these "slices" are instantiated.



[Jie] It is stated in section 2 that additional SR SIDs are needed to ident=
ify the topology and resource associated with different virtual networks. T=
he scalability discussion in section 5 compares the SR based approach with =
the existing RSVP-TE approach, and shows the benefit of using SR for buildi=
ng resource guaranteed virtual networks. For further scalability considerat=
ions about the number of virtual networks and its impact, please refer to d=
raft-dong-teas-enhanced-vpn-vtn-scalability.



6)      Finally, I have an objection to the use of terms like "enhanced VPN=
" and "VPN+" in the document that sound more like marketing terms than tech=
nical terminologies.. There was a similar comment made by one of the Spring=
 chairs for a previous version, but I don't see it being addressed. VPNs mi=
ght be but one of the services that can leverage the resource aware SIDs in=
 their underlay.



[Jie] The enhanced VPN (VPN+) framework is developed and adopted in TEAS, w=
hich aims to provide enhanced VPN service based on VPN and TE technologies =
with possible enhancements. Thus enhanced VPN is IETF work in progress,  Pr=
oviding enhanced VPN service is the motivation of this draft, while as comm=
ented by chairs and agreed by coauthors, we have been working to make this =
document focusing on the enhancement to SR.



The comments from SPRING chair has been resolved in recent updates of the d=
raft. In current version enhanced VPN is just mentioned as one service of t=
he SR virtual network.



I look forward to responses from the authors and updates to the document to=
 address these comments.



[Jie] Hope my above replies help to solve your comments. And as this docume=
nt is just in WG adoption, it could be polished further after the adoption.



Best regards,

Jie



Thanks,

Ketan


From: spring <spring-bounces@ietf.org<mailto:spring-bounces@ietf.org>> On B=
ehalf Of James Guichard
Sent: 15 July 2020 16:47
To: spring@ietf.org<mailto:spring@ietf.org>
Cc: spring-chairs@ietf.org<mailto:spring-chairs@ietf.org>
Subject: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vp=
n

Dear WG:

This email begins a 2 week WG adoption call for https://datatracker.ietf.or=
g/doc/draft-dong-spring-sr-for-enhanced-vpn/ ending Wednesday 29th July 202=
0.

Please speak up if you support or oppose adopting this document into the WG=
. Please also provide comments/reasons for that support (or lack thereof). =
Silence will not be considered consent.

Thanks!

Jim, Joel & Bruno




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<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">Hi Ketan,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">Thanks for your comment and support. Please see some replies inli=
ne:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<div style=3D"border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm =
4.0pt">
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US">From:</span></b><span lang=
=3D"EN-US"> spring [<a href=3D"mailto:spring-bounces@ietf.org">mailto:sprin=
g-bounces@ietf.org</a>]
<b>On Behalf Of </b>Ketan Talaulikar (ketant)<br>
<b>Sent:</b> Friday, July 24, 2020 2:27 AM<br>
<b>To:</b> James Guichard &lt;<a href=3D"mailto:james.n.guichard@futurewei.=
com">james.n.guichard@futurewei.com</a>&gt;;
<a href=3D"mailto:spring@ietf.org">spring@ietf.org</a><br>
<b>Cc:</b> <a href=3D"mailto:spring-chairs@ietf.org">spring-chairs@ietf.org=
</a><br>
<b>Subject:</b> Re: [spring] WG Adoption Call for draft-dong-spring-sr-for-=
enhanced-vpn<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"paragraph" style=3D"margin:0cm;margin-bottom:.0001pt;vertical-a=
lign:baseline">
<span class=3D"normaltextrun"><span lang=3D"EN-IN">Hi All,</span></span><sp=
an class=3D"eop"><span lang=3D"EN-IN">&nbsp;<o:p></o:p></span></span></p>
<p class=3D"paragraph" style=3D"margin:0cm;margin-bottom:.0001pt;vertical-a=
lign:baseline">
<span lang=3D"EN-US" style=3D"font-size:9.0pt;font-family:&quot;Segoe UI&qu=
ot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
<p class=3D"paragraph" style=3D"margin:0cm;margin-bottom:.0001pt;vertical-a=
lign:baseline;user-select: text;-webkit-user-drag: none;-webkit-tap-highlig=
ht-color: transparent;overflow-wrap: break-word">
<span class=3D"normaltextrun"><span lang=3D"EN-IN">This document&nbsp;seems=
 to talk of&nbsp;&#8220;resource&nbsp;group&#8221;&nbsp;SIDs that is&nbsp;s=
omething&nbsp;interesting&nbsp;&#8211; specifically for SR-MPLS&nbsp;(I don=
&#8217;t see the same relevance for SRv6).</span></span><span class=3D"eop"=
><span lang=3D"EN-IN">&nbsp;<o:p></o:p></span></span></p>
<p class=3D"paragraph" style=3D"margin:0cm;margin-bottom:.0001pt;vertical-a=
lign:baseline">
<span class=3D"eop"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color:#1=
F497D"><o:p>&nbsp;</o:p></span></span></p>
<p class=3D"paragraph" style=3D"margin:0cm;margin-bottom:.0001pt;vertical-a=
lign:baseline">
<span class=3D"eop"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color:#1=
F497D">[Jie] SR-MPLS is used in the example described in this document, whi=
le the concept of resource-aware SID is generic to SR, and can be applicabl=
e to both SR-MPLS and SRv6.
<o:p></o:p></span></span></p>
<p class=3D"paragraph" style=3D"margin:0cm;margin-bottom:.0001pt;vertical-a=
lign:baseline">
<span lang=3D"EN-US" style=3D"font-size:9.0pt;font-family:&quot;Segoe UI&qu=
ot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
<p class=3D"paragraph" style=3D"margin:0cm;margin-bottom:.0001pt;vertical-a=
lign:baseline;user-select: text;-webkit-user-drag: none;-webkit-tap-highlig=
ht-color: transparent;overflow-wrap: break-word">
<span class=3D"normaltextrun"><span lang=3D"EN-IN">I support the adoption o=
f (what is coming across to me as) this&nbsp;concept of&nbsp;a new&nbsp;&#8=
220;resource group&#8221;&nbsp;scope&nbsp;for SR SIDs as a work item for th=
e Spring WG. Rest should be moved into a separate informational document&nb=
sp;since
 all of&nbsp;that seem unrelated,&nbsp;nothing new and not suitable for a&n=
bsp;standards&nbsp;track document.</span></span><span class=3D"eop"><span l=
ang=3D"EN-IN">&nbsp;<o:p></o:p></span></span></p>
<p class=3D"paragraph" style=3D"margin:0cm;margin-bottom:.0001pt;vertical-a=
lign:baseline">
<span class=3D"eop"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color:#1=
F497D"><o:p>&nbsp;</o:p></span></span></p>
<p class=3D"paragraph" style=3D"margin:0cm;margin-bottom:.0001pt;vertical-a=
lign:baseline">
<span class=3D"eop"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color:#1=
F497D">[Jie] Thanks for supporting the introduction of resource semantics t=
o SR SIDs.
<o:p></o:p></span></span></p>
<p class=3D"paragraph" style=3D"margin:0cm;margin-bottom:.0001pt;vertical-a=
lign:baseline">
<span class=3D"eop"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color:#1=
F497D"><o:p>&nbsp;</o:p></span></span></p>
<p class=3D"paragraph" style=3D"margin:0cm;margin-bottom:.0001pt;vertical-a=
lign:baseline">
<span class=3D"eop"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color:#1=
F497D">A group of SR SIDs with such semantics can be used to build resource=
 guaranteed SR paths or virtual networks. The mechanism and procedure for r=
esource guaranteed virtual network is
 highlighted because the </span></span><span lang=3D"EN-US" style=3D"font-s=
ize:10.5pt;color:#1F497D">advantage of SR (no per-path state) can be utiliz=
ed in per-virtual network resource allocation, which is more scalable than =
the per-path resource reservation in
 RSVP-TE. Thus it is an important and integral part of this document, as is=
 reflected in the document title.
<span class=3D"eop"><o:p></o:p></span></span></p>
<p class=3D"paragraph" style=3D"margin:0cm;margin-bottom:.0001pt;vertical-a=
lign:baseline">
<span lang=3D"EN-US" style=3D"font-size:9.0pt;font-family:&quot;Segoe UI&qu=
ot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
<p class=3D"paragraph" style=3D"margin:0cm;margin-bottom:.0001pt;vertical-a=
lign:baseline;user-select: text;-webkit-user-drag: none;-webkit-tap-highlig=
ht-color: transparent;overflow-wrap: break-word">
<span class=3D"normaltextrun"><span lang=3D"EN-IN">Therefore,&nbsp;the draf=
t needs more work before it is ready for adoption.&nbsp;</span></span><span=
 class=3D"eop"><span lang=3D"EN-IN">&nbsp;</span></span><span lang=3D"EN-IN=
" style=3D"font-size:9.0pt;font-family:&quot;Segoe UI&quot;,sans-serif"><o:=
p></o:p></span></p>
<p class=3D"paragraph" style=3D"margin:0cm;margin-bottom:.0001pt;vertical-a=
lign:baseline;user-select: text;-webkit-user-drag: none;-webkit-tap-highlig=
ht-color: transparent;overflow-wrap: break-word">
<span class=3D"normaltextrun"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span>=
</span></p>
<p class=3D"paragraph" style=3D"margin:0cm;margin-bottom:.0001pt;vertical-a=
lign:baseline">
<span class=3D"normaltextrun"><span lang=3D"EN-IN">Following are&nbsp;my&nb=
sp;more&nbsp;specific comments&nbsp;on&nbsp;this draft:</span></span><span =
class=3D"eop"><span lang=3D"EN-IN">&nbsp;</span><span lang=3D"EN-US"><o:p><=
/o:p></span></span></p>
<p class=3D"paragraph" style=3D"margin:0cm;margin-bottom:.0001pt;vertical-a=
lign:baseline">
<span lang=3D"EN-US" style=3D"font-size:9.0pt;font-family:&quot;Segoe UI&qu=
ot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
<p class=3D"paragraph" style=3D"mso-margin-top-alt:0cm;margin-right:0cm;mar=
gin-bottom:0cm;margin-left:36.0pt;margin-bottom:.0001pt;text-indent:-18.0pt=
;mso-list:l0 level1 lfo2;vertical-align:baseline">
<![if !supportLists]><span class=3D"eop"><span lang=3D"EN-US"><span style=
=3D"mso-list:Ignore">1)<span style=3D"font:7.0pt &quot;Times New Roman&quot=
;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span></span></span><![endif]><span class=3D"normaltextrun"><span l=
ang=3D"EN-IN">SR SIDs that are scoped to a MT or Algo or&nbsp;MT&#43;Algo&n=
bsp;combination can already be associated with some &#8220;resources&#8221;=
 on routers today. There&nbsp;is nothing new&nbsp;here to be standardized.
 If there is interest in the WG for documenting&nbsp;how resources are carv=
ed out and assigned to say a Flex-Algo and/or MT scoped SIDs, it should be =
in an independent informational&nbsp;document.&nbsp;There seems to be a lot=
 of overlap of this with work in the TEAS WG.&nbsp;Much
 of Section 2&nbsp;seems to be&nbsp;of this nature.</span></span><span clas=
s=3D"eop"><span lang=3D"EN-IN">&nbsp;</span><span lang=3D"EN-US"><o:p></o:p=
></span></span></p>
<p class=3D"paragraph" style=3D"margin:0cm;margin-bottom:.0001pt;vertical-a=
lign:baseline;user-select: text;-webkit-user-drag: none;-webkit-tap-highlig=
ht-color: transparent;overflow-wrap: break-word">
<span class=3D"eop"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color:#1=
F497D"><o:p>&nbsp;</o:p></span></span></p>
<p class=3D"paragraph" style=3D"margin:0cm;margin-bottom:.0001pt;vertical-a=
lign:baseline">
<span class=3D"eop"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color:#1=
F497D">[Jie] In this document resource refers to the data plane resource fo=
r packet processing and forwarding, which is not covered in the existing MT=
/Algo mechanism. As stated in this document,
 MT/Algo or the combination can be used as the control plane for advertisin=
g the topology and the resource attributes of the virtual network, the deta=
ils of the control plane mechanism and extensions are specified in separate=
 documents.
<o:p></o:p></span></span></p>
<p class=3D"paragraph" style=3D"mso-margin-top-alt:0cm;margin-right:0cm;mar=
gin-bottom:0cm;margin-left:18.0pt;margin-bottom:.0001pt;vertical-align:base=
line">
<span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"paragraph" style=3D"mso-margin-top-alt:0cm;margin-right:0cm;mar=
gin-bottom:0cm;margin-left:36.0pt;margin-bottom:.0001pt;text-indent:-18.0pt=
;mso-list:l0 level1 lfo2;vertical-align:baseline">
<![if !supportLists]><span class=3D"eop"><span lang=3D"EN-US"><span style=
=3D"mso-list:Ignore">2)<span style=3D"font:7.0pt &quot;Times New Roman&quot=
;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span></span></span><![endif]><span class=3D"normaltextrun"><span l=
ang=3D"EN-IN">IGP SR SIDs are today scoped to an MT and Algo. This draft se=
ems to be introducing another &#8220;resource group&#8221; type of scoping =
within an&nbsp;MT&#43;Algo&nbsp;context for Prefix and Adjacency
 SIDs.&nbsp;When packets using SID&nbsp;labels&nbsp;belonging to&nbsp;a&nbs=
p;&#8220;resource group&#8221; arrive at a router, it helps the router asso=
ciate those service flows to the QoS profile provisioned for that &#8220;re=
source group&#8221;&nbsp;on that specific link/router. This is what&nbsp;it=
&nbsp;seems&nbsp;is the whole
 essence&nbsp;of the proposal &#8211; but&nbsp;this&nbsp;is not&nbsp;clear&=
nbsp;in the document.&nbsp; The routing of these SIDs is going to follow wh=
atever MT and/or&nbsp;FlexAlgo&nbsp;computation provides &#8211; therefore,=
 I am not sure I understand how these &#8220;resource group&#8221; SIDs are=
 creating some&nbsp;new&nbsp;&#8220;Virtual
 Network Topology&#8221;.&nbsp;Isn&#8217;t this just a &#8220;network slice=
&#8221; of resources?</span></span><span class=3D"eop"><span lang=3D"EN-IN"=
>&nbsp;</span><span lang=3D"EN-US"><o:p></o:p></span></span></p>
<p class=3D"paragraph" style=3D"margin:0cm;margin-bottom:.0001pt;vertical-a=
lign:baseline;user-select: text;-webkit-user-drag: none;-webkit-tap-highlig=
ht-color: transparent;overflow-wrap: break-word">
<span class=3D"eop"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color:#1=
F497D"><o:p>&nbsp;</o:p></span></span></p>
<p class=3D"paragraph" style=3D"margin:0cm;margin-bottom:.0001pt;vertical-a=
lign:baseline">
<span class=3D"eop"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color:#1=
F497D">[Jie] As defined in section 1, the resource semantic is one addition=
al dimension represented by SIDs, which means the SID can be used to repres=
ent topology or function, together with
 the set of resources used to process the packet according to the function.=
 The forwarding behavior of SIDs with both topology and resource semantics =
are described in section 2. In summary, the topology and resource are two a=
spects of the virtual network described
 in this document. <o:p></o:p></span></span></p>
<p class=3D"MsoListParagraph"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span>=
</p>
<p class=3D"paragraph" style=3D"mso-margin-top-alt:0cm;margin-right:0cm;mar=
gin-bottom:0cm;margin-left:36.0pt;margin-bottom:.0001pt;text-indent:-18.0pt=
;mso-list:l0 level1 lfo2;vertical-align:baseline">
<![if !supportLists]><span class=3D"eop"><span lang=3D"EN-US"><span style=
=3D"mso-list:Ignore">3)<span style=3D"font:7.0pt &quot;Times New Roman&quot=
;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span></span></span><![endif]><span class=3D"normaltextrun"><span l=
ang=3D"EN-IN">I am not sure how the discussion in Section 3 is bringing in =
anything new and again it is purely informational in nature..&nbsp;Perhaps =
I am not able to follow the point.</span></span><span class=3D"eop"><span l=
ang=3D"EN-IN">&nbsp;</span><span lang=3D"EN-US"><o:p></o:p></span></span></=
p>
<p class=3D"paragraph" style=3D"margin:0cm;margin-bottom:.0001pt;vertical-a=
lign:baseline;user-select: text;-webkit-user-drag: none;-webkit-tap-highlig=
ht-color: transparent;overflow-wrap: break-word">
<span class=3D"eop"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color:#1=
F497D"><o:p>&nbsp;</o:p></span></span></p>
<p class=3D"paragraph" style=3D"margin:0cm;margin-bottom:.0001pt;vertical-a=
lign:baseline">
<span class=3D"eop"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color:#1=
F497D">[Jie] It provides an overview of the associated control plane mechan=
isms, which is useful information to correlate this document and the contro=
l plane mechanisms needed. The details
 are provided in the control plane drafts in corresponding WGs.<o:p></o:p><=
/span></span></p>
<p class=3D"paragraph" style=3D"mso-margin-top-alt:0cm;margin-right:0cm;mar=
gin-bottom:0cm;margin-left:18.0pt;margin-bottom:.0001pt;vertical-align:base=
line;user-select: text;-webkit-user-drag: none;-webkit-tap-highlight-color:=
 transparent;overflow-wrap: break-word">
<span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"paragraph" style=3D"mso-margin-top-alt:0cm;margin-right:0cm;mar=
gin-bottom:0cm;margin-left:36.0pt;margin-bottom:.0001pt;text-indent:-18.0pt=
;mso-list:l0 level1 lfo2;vertical-align:baseline">
<![if !supportLists]><span class=3D"eop"><span lang=3D"EN-US"><span style=
=3D"mso-list:Ignore">4)<span style=3D"font:7.0pt &quot;Times New Roman&quot=
;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span></span></span><![endif]><span class=3D"normaltextrun"><span l=
ang=3D"EN-IN">Much of Section 4 is also similarly informational in nature a=
nd&nbsp;about&nbsp;how some vendor/operator may want to use &#8220;resource=
 group&#8221; SIDs. However,&nbsp;it&nbsp;does&nbsp;not&nbsp;formally and n=
ormatively
 define this new concept of &#8220;resource group&#8221; SIDs.&nbsp;&nbsp;O=
ther implementations and operators may choose to do this differently &#8211=
; so why standardize&nbsp;this&nbsp;one way?&nbsp;Discussion like assigning=
/allocation of SIDs, distribution of their information and setting up paths
 through the network using these SIDs are basic concepts of SR&nbsp;- not s=
ure if they need description and repetition in a&nbsp;standards&nbsp;track =
document.</span></span><span class=3D"eop"><span lang=3D"EN-IN">&nbsp;</spa=
n><span lang=3D"EN-US"><o:p></o:p></span></span></p>
<p class=3D"paragraph" style=3D"margin:0cm;margin-bottom:.0001pt;vertical-a=
lign:baseline;user-select: text;-webkit-user-drag: none;-webkit-tap-highlig=
ht-color: transparent;overflow-wrap: break-word">
<span class=3D"eop"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color:#1=
F497D"><o:p>&nbsp;</o:p></span></span></p>
<p class=3D"paragraph" style=3D"margin:0cm;margin-bottom:.0001pt;vertical-a=
lign:baseline">
<span class=3D"eop"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color:#1=
F497D">[Jie] This section provides the procedures of using resource-aware S=
IDs to build resource guaranteed virtual networks. These are based on the e=
xisting SR mechanism with procedures related
 to the allocation of resource-aware SIDs and the generation of correspondi=
ng forwarding entries. The procedure and example in this section is helpful=
 for understanding the relationship and difference from the existing SR mec=
hanism.<o:p></o:p></span></span></p>
<p class=3D"MsoListParagraph"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span>=
</p>
<p class=3D"paragraph" style=3D"mso-margin-top-alt:0cm;margin-right:0cm;mar=
gin-bottom:0cm;margin-left:36.0pt;margin-bottom:.0001pt;text-indent:-18.0pt=
;mso-list:l0 level1 lfo2;vertical-align:baseline">
<![if !supportLists]><span class=3D"eop"><span lang=3D"EN-US"><span style=
=3D"mso-list:Ignore">5)<span style=3D"font:7.0pt &quot;Times New Roman&quot=
;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span></span></span><![endif]><span class=3D"normaltextrun"><span l=
ang=3D"EN-IN">Section 5, Scalability is not giving the right picture. The p=
roposal ends replicating each SID label forwarding entry (e..g. for prefix =
SID) multiplied by each &#8220;resource group&#8221;
 on each router simply for&nbsp;the sake of identifying QoS resources for i=
t.&nbsp;That is not&nbsp;really scalable&nbsp;and will end up consuming a l=
arge set of&nbsp;label&nbsp;forwarding entries&nbsp;on the routers dependin=
g on the network scale and now many of these &#8220;slices&#8221; are&nbsp;=
instantiated.</span></span><span class=3D"eop"><span lang=3D"EN-US">&nbsp;<=
/span><span lang=3D"EN-US"><o:p></o:p></span></span></p>
<p class=3D"paragraph" style=3D"margin:0cm;margin-bottom:.0001pt;vertical-a=
lign:baseline;user-select: text;-webkit-user-drag: none;-webkit-tap-highlig=
ht-color: transparent;overflow-wrap: break-word">
<span class=3D"eop"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color:#1=
F497D"><o:p>&nbsp;</o:p></span></span></p>
<p class=3D"paragraph" style=3D"margin:0cm;margin-bottom:.0001pt;vertical-a=
lign:baseline">
<span class=3D"eop"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color:#1=
F497D">[Jie] It is stated in section 2 that additional SR SIDs are needed t=
o identify the topology and resource associated with different virtual netw=
orks. The scalability discussion in section
 5 compares the SR based approach with the existing RSVP-TE approach, and s=
hows the benefit of using SR for building resource guaranteed virtual netwo=
rks. For further scalability considerations about the number of virtual net=
works and its impact, please refer
 to draft-dong-teas-enhanced-vpn-vtn-scalability.<o:p></o:p></span></span><=
/p>
<p class=3D"MsoListParagraph"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span>=
</p>
<p class=3D"paragraph" style=3D"mso-margin-top-alt:0cm;margin-right:0cm;mar=
gin-bottom:0cm;margin-left:36.0pt;margin-bottom:.0001pt;text-indent:-18.0pt=
;mso-list:l0 level1 lfo2;vertical-align:baseline">
<![if !supportLists]><span class=3D"eop"><span lang=3D"EN-IN"><span style=
=3D"mso-list:Ignore">6)<span style=3D"font:7.0pt &quot;Times New Roman&quot=
;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span></span></span><![endif]><span class=3D"normaltextrun"><span l=
ang=3D"EN-IN">Finally,&nbsp;I have an objection to the use of terms like &#=
8220;enhanced VPN&#8221; and &#8220;VPN&#43;&#8221; in the document&nbsp;th=
at sound more like marketing terms than technical terminologies.. There was
 a similar comment made by&nbsp;one of the Spring chairs for a previous&nbs=
p;version,&nbsp;but I don&#8217;t see it being addressed.&nbsp;VPNs might b=
e but one of the services that can leverage the resource aware SIDs in thei=
r underlay.</span></span><span class=3D"eop"><span lang=3D"EN-IN">&nbsp;<o:=
p></o:p></span></span></p>
<p class=3D"paragraph" style=3D"margin:0cm;margin-bottom:.0001pt;vertical-a=
lign:baseline;user-select: text;-webkit-user-drag: none;-webkit-tap-highlig=
ht-color: transparent;overflow-wrap: break-word">
<span lang=3D"EN-US" style=3D"font-size:10.5pt;color:#1F497D"><o:p>&nbsp;</=
o:p></span></p>
<p class=3D"paragraph" style=3D"margin:0cm;margin-bottom:.0001pt;vertical-a=
lign:baseline">
<span lang=3D"EN-IN" style=3D"font-size:10.5pt;color:#1F497D">[Jie] The enh=
anced VPN (VPN&#43;) framework is developed and adopted in TEAS, which aims=
 to provide enhanced VPN service based on VPN and TE technologies with poss=
ible enhancements. Thus enhanced VPN is
 IETF work in progress, &nbsp;Providing enhanced VPN service is the motivat=
ion of this draft, while as commented by chairs and agreed by coauthors, we=
 have been working to make this document focusing on the enhancement to SR.
<o:p></o:p></span></p>
<p class=3D"paragraph" style=3D"margin:0cm;margin-bottom:.0001pt;vertical-a=
lign:baseline">
<span lang=3D"EN-IN" style=3D"font-size:10.5pt;color:#1F497D"><o:p>&nbsp;</=
o:p></span></p>
<p class=3D"paragraph" style=3D"margin:0cm;margin-bottom:.0001pt;vertical-a=
lign:baseline">
<span lang=3D"EN-IN" style=3D"font-size:10.5pt;color:#1F497D">The comments =
from SPRING chair has been resolved in recent updates of the draft. In curr=
ent version enhanced VPN is just mentioned as one service of the SR virtual=
 network.<o:p></o:p></span></p>
<p class=3D"paragraph" style=3D"margin:0cm;margin-bottom:.0001pt;vertical-a=
lign:baseline;user-select: text;-webkit-user-drag: none;-webkit-tap-highlig=
ht-color: transparent;overflow-wrap: break-word">
<span class=3D"normaltextrun"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span>=
</span></p>
<p class=3D"paragraph" style=3D"margin:0cm;margin-bottom:.0001pt;vertical-a=
lign:baseline">
<span class=3D"normaltextrun"><span lang=3D"EN-IN">I look forward to respon=
ses from the authors and updates to the document to address these comments.=
<o:p></o:p></span></span></p>
<p class=3D"paragraph" style=3D"margin:0cm;margin-bottom:.0001pt;vertical-a=
lign:baseline">
<span class=3D"normaltextrun"><span lang=3D"EN-IN" style=3D"font-size:10.5p=
t;color:#1F497D"><o:p>&nbsp;</o:p></span></span></p>
<p class=3D"paragraph" style=3D"margin:0cm;margin-bottom:.0001pt;vertical-a=
lign:baseline">
<span class=3D"normaltextrun"><span lang=3D"EN-IN" style=3D"font-size:10.5p=
t;color:#1F497D">[Jie] Hope my above replies help to solve your comments. A=
nd as this document is just in WG adoption, it could be polished further af=
ter the adoption.
<o:p></o:p></span></span></p>
<p class=3D"paragraph" style=3D"margin:0cm;margin-bottom:.0001pt;vertical-a=
lign:baseline">
<span class=3D"normaltextrun"><span lang=3D"EN-IN" style=3D"font-size:10.5p=
t;color:#1F497D"><o:p>&nbsp;</o:p></span></span></p>
<p class=3D"paragraph" style=3D"margin:0cm;margin-bottom:.0001pt;vertical-a=
lign:baseline">
<span class=3D"normaltextrun"><span lang=3D"EN-IN" style=3D"font-size:10.5p=
t;color:#1F497D">Best regards,<o:p></o:p></span></span></p>
<p class=3D"paragraph" style=3D"margin:0cm;margin-bottom:.0001pt;vertical-a=
lign:baseline">
<span class=3D"normaltextrun"><span lang=3D"EN-IN" style=3D"font-size:10.5p=
t;color:#1F497D">Jie<o:p></o:p></span></span></p>
<p class=3D"paragraph" style=3D"margin:0cm;margin-bottom:.0001pt;vertical-a=
lign:baseline">
<span class=3D"normaltextrun"><span lang=3D"EN-IN"><o:p>&nbsp;</o:p></span>=
</span></p>
<p class=3D"paragraph" style=3D"margin:0cm;margin-bottom:.0001pt;vertical-a=
lign:baseline">
<span class=3D"normaltextrun"><span lang=3D"EN-IN">Thanks,</span></span><sp=
an class=3D"eop"><span lang=3D"EN-IN">&nbsp;</span></span><span lang=3D"EN-=
US" style=3D"font-size:9.0pt;font-family:&quot;Segoe UI&quot;,sans-serif"><=
o:p></o:p></span></p>
<p class=3D"paragraph" style=3D"margin:0cm;margin-bottom:.0001pt;vertical-a=
lign:baseline;user-select: text;-webkit-user-drag: none;-webkit-tap-highlig=
ht-color: transparent;overflow-wrap: break-word">
<span class=3D"normaltextrun"><span lang=3D"EN-IN">Ketan</span></span><span=
 class=3D"eop"><span lang=3D"EN-IN">&nbsp;</span></span><span lang=3D"EN-IN=
" style=3D"font-size:9.0pt;font-family:&quot;Segoe UI&quot;,sans-serif"><o:=
p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-IN" style=3D"mso-fareast-language:E=
N-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-IN" style=3D"mso-fareast-language:E=
N-US"><o:p>&nbsp;</o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US">From:</span></b><span lang=
=3D"EN-US"> spring &lt;<a href=3D"mailto:spring-bounces@ietf.org">spring-bo=
unces@ietf.org</a>&gt;
<b>On Behalf Of </b>James Guichard<br>
<b>Sent:</b> 15 July 2020 16:47<br>
<b>To:</b> <a href=3D"mailto:spring@ietf.org">spring@ietf.org</a><br>
<b>Cc:</b> <a href=3D"mailto:spring-chairs@ietf.org">spring-chairs@ietf.org=
</a><br>
<b>Subject:</b> [spring] WG Adoption Call for draft-dong-spring-sr-for-enha=
nced-vpn<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-IN"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Dear WG:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">This email begins a 2 week WG a=
doption call for
<a href=3D"https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanc=
ed-vpn/">
https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/</a>=
 ending Wednesday 29<sup>th</sup> July 2020.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Please speak up if you support =
or oppose adopting this document into the WG. Please also provide comments/=
reasons for that support (or lack thereof). Silence will not be considered =
consent.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Thanks!<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Jim, Joel &amp; Bruno<o:p></o:p=
></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
</div>
</div>
</body>
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From: "Pengshuping (Peng Shuping)" <pengshuping@huawei.com>
To: "spring@ietf.org" <spring@ietf.org>
CC: "spring-chairs@ietf.org" <spring-chairs@ietf.org>
Thread-Topic: SPRING WG Agenda @IETF108
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Hi all,

A kind reminder for the presenters to send your slides. Thank you!

https://datatracker.ietf.org/meeting/108/session/spring

Best regards,
Shuping


From: Pengshuping (Peng Shuping)
Sent: Monday, July 20, 2020 6:16 PM
To: 'spring@ietf.org' <spring@ietf.org>
Cc: 'spring-chairs@ietf.org' <spring-chairs@ietf.org>
Subject: SPRING WG Agenda @IETF108


Hi all,



The agenda for our virtual 108 meeting has been posted. Please let us know =
if any changes are needed.



https://www.ietf.org/proceedings/108/agenda/agenda-108-spring-00



To all presenters, please send your slides to spring-chairs@ietf.org<mailto=
:spring-chairs@ietf.org> no later than the Saturday July 25.



Thank you!



Best Regards,

Shuping


From: Pengshuping (Peng Shuping)
Sent: Sunday, June 28, 2020 9:56 PM
To: spring@ietf.org<mailto:spring@ietf.org>
Cc: spring-chairs@ietf.org<mailto:spring-chairs@ietf.org>
Subject: Presentation slot request in SPRING WG - IETF108

Hi all,

We have decided to use Google Form to collect presentation slot requests in=
 the SPRING WG for this IETF108. Please fill in your request in the followi=
ng Form.

https://docs.google.com/forms/d/e/1FAIpQLSeed9WSYsu5qlxNTOIzd49gFeZSlfny9C6=
xmB8ZxQTrERufyw/viewform
If there is any issue for you to access this Form, please send your request=
 directly to spring-chairs@ietf.org<mailto:spring-chairs@ietf.org>.

Thank you!

Best regards,
Shuping

--_000_4278D47A901B3041A737953BAA078ADE191E2986DGGEML532MBXchi_
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fy-trim:punctuation">
<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D">Hi all,=
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D"><o:p>&n=
bsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D">A kind =
reminder for the presenters to send your slides. Thank you!
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D"><o:p>&n=
bsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><a href=3D"https://datatracker.=
ietf.org/meeting/108/session/spring">https://datatracker.ietf.org/meeting/1=
08/session/spring</a><o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D"><o:p>&n=
bsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D">Best re=
gards,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D">Shuping=
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D"><o:p>&n=
bsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D"><o:p>&n=
bsp;</o:p></span></p>
<div style=3D"border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm =
4.0pt">
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" align=3D"left" style=3D"text-align:left"><b><span la=
ng=3D"EN-US" style=3D"font-size:11.0pt">From:</span></b><span lang=3D"EN-US=
" style=3D"font-size:11.0pt"> Pengshuping (Peng Shuping)
<br>
<b>Sent:</b> Monday, July 20, 2020 6:16 PM<br>
<b>To:</b> 'spring@ietf.org' &lt;spring@ietf.org&gt;<br>
<b>Cc:</b> 'spring-chairs@ietf.org' &lt;spring-chairs@ietf.org&gt;<br>
<b>Subject:</b> SPRING WG Agenda @IETF108<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" align=3D"left" style=3D"text-align:left"><span lang=
=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoPlainText"><span lang=3D"EN-US">Hi all,<o:p></o:p></span></p=
>
<p class=3D"MsoPlainText"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoPlainText"><span lang=3D"EN-US">The agenda for our virtual 1=
08 meeting has been posted. Please let us know if any changes are needed.<o=
:p></o:p></span></p>
<p class=3D"MsoPlainText"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoPlainText"><span lang=3D"EN-US"><a href=3D"https://www.ietf.=
org/proceedings/108/agenda/agenda-108-spring-00">https://www.ietf.org/proce=
edings/108/agenda/agenda-108-spring-00</a><o:p></o:p></span></p>
<p class=3D"MsoPlainText"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoPlainText"><span lang=3D"EN-US">To all presenters, please se=
nd your slides to
<a href=3D"mailto:spring-chairs@ietf.org">spring-chairs@ietf.org</a> no lat=
er than the Saturday July 25.<o:p></o:p></span></p>
<p class=3D"MsoPlainText"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoPlainText"><span lang=3D"EN-US">Thank you! <o:p></o:p></span=
></p>
<p class=3D"MsoPlainText"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoPlainText"><span lang=3D"EN-US">Best Regards, <o:p></o:p></s=
pan></p>
<p class=3D"MsoPlainText"><span lang=3D"EN-US">Shuping <o:p></o:p></span></=
p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D"><o:p>&n=
bsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D"><o:p>&n=
bsp;</o:p></span></p>
<div style=3D"border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm =
4.0pt">
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" align=3D"left" style=3D"text-align:left"><b><span la=
ng=3D"EN-US" style=3D"font-size:11.0pt">From:</span></b><span lang=3D"EN-US=
" style=3D"font-size:11.0pt"> Pengshuping (Peng Shuping)
<br>
<b>Sent:</b> Sunday, June 28, 2020 9:56 PM<br>
<b>To:</b> <a href=3D"mailto:spring@ietf.org">spring@ietf.org</a><br>
<b>Cc:</b> <a href=3D"mailto:spring-chairs@ietf.org">spring-chairs@ietf.org=
</a><br>
<b>Subject:</b> Presentation slot request in SPRING WG - IETF108<o:p></o:p>=
</span></p>
</div>
</div>
<p class=3D"MsoNormal" align=3D"left" style=3D"text-align:left"><span lang=
=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Hi all,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">We have decided to use Google F=
orm to collect presentation slot requests in the SPRING WG for this IETF108=
. Please fill in your request in the following Form.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><a href=3D"https://docs.google.=
com/forms/d/e/1FAIpQLSeed9WSYsu5qlxNTOIzd49gFeZSlfny9C6xmB8ZxQTrERufyw/view=
form">https://docs.google.com/forms/d/e/1FAIpQLSeed9WSYsu5qlxNTOIzd49gFeZSl=
fny9C6xmB8ZxQTrERufyw/viewform</a><o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">If there is any issue for you t=
o access this Form, please send your request directly to
<a href=3D"mailto:spring-chairs@ietf.org">spring-chairs@ietf.org</a>. <o:p>=
</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Thank you!<o:p></o:p></span></p=
>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Best regards,<o:p></o:p></span>=
</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Shuping<o:p></o:p></span></p>
</div>
</div>
</div>
</body>
</html>

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Subject: Re: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn
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Support.

Best Regards,
Huaimo
________________________________
From: spring <spring-bounces@ietf.org> on behalf of James Guichard <james.n=
.guichard@futurewei.com>
Sent: Wednesday, July 15, 2020 7:16 AM
To: spring@ietf.org <spring@ietf.org>
Cc: spring-chairs@ietf.org <spring-chairs@ietf.org>
Subject: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vp=
n


Dear WG:



This email begins a 2 week WG adoption call for https://datatracker.ietf.or=
g/doc/draft-dong-spring-sr-for-enhanced-vpn/ ending Wednesday 29th July 202=
0.



Please speak up if you support or oppose adopting this document into the WG=
. Please also provide comments/reasons for that support (or lack thereof). =
Silence will not be considered consent.



Thanks!



Jim, Joel & Bruno







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Huaimo</div>
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nces@ietf.org&gt; on behalf of James Guichard &lt;james.n.guichard@futurewe=
i.com&gt;<br>
<b>Sent:</b> Wednesday, July 15, 2020 7:16 AM<br>
<b>To:</b> spring@ietf.org &lt;spring@ietf.org&gt;<br>
<b>Cc:</b> spring-chairs@ietf.org &lt;spring-chairs@ietf.org&gt;<br>
<b>Subject:</b> [spring] WG Adoption Call for draft-dong-spring-sr-for-enha=
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<p class=3D"x_MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt=
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<span style=3D"">&nbsp;</span></p>
<p class=3D"x_MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt=
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<span style=3D"">This email begins a 2 week WG adoption call for <a href=3D=
"https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/">
https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/</a>=
 ending Wednesday 29<sup>th</sup> July 2020.
</span></p>
<p class=3D"x_MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt=
; font-family: Calibri, sans-serif;">
<span style=3D"">&nbsp;</span></p>
<p class=3D"x_MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt=
; font-family: Calibri, sans-serif;">
<span style=3D"">Please speak up if you support or oppose adopting this doc=
ument into the WG. Please also provide comments/reasons for that support (o=
r lack thereof). Silence will not be considered consent.</span></p>
<p class=3D"x_MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt=
; font-family: Calibri, sans-serif;">
<span style=3D"">&nbsp;</span></p>
<p class=3D"x_MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt=
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<span style=3D"">Thanks!</span></p>
<p class=3D"x_MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt=
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<span style=3D"">&nbsp;</span></p>
<p class=3D"x_MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt=
; font-family: Calibri, sans-serif;">
<span style=3D"">Jim, Joel &amp; Bruno</span></p>
<p class=3D"x_MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt=
; font-family: Calibri, sans-serif;">
&nbsp;</p>
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&nbsp;</p>
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From: Dhruv Dhody <dhruv.ietf@gmail.com>
Date: Sat, 25 Jul 2020 22:48:35 +0530
Message-ID: <CAB75xn7m3Af63OFbRCOYRsjM5SMe3CAPAxWpyWgwGLEWS+hv5g@mail.gmail.com>
To: James Guichard <james.n.guichard@futurewei.com>
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Subject: Re: [spring] WG Adoption Call for draft-raza-spring-sr-policy-yang
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Hi WG,

I support the adoption of this work and I have thoughts on how to
improve the document -

Some questions/comments -

- Why do you have the config and the state trees separately in Figures
2 and 3? That's out of fashion with NMDA!
- I hope this model is applicable for both the headend router as well
as for the controller. If yes, we should highlight that as well as
make sure the YANG model takes care of this. For example, counters,
path-forwarding_state, etc
- I found the top-level container "traffic-engineering" on top as out
of place when the rest of the SR-Policy work does not use it.
- Regarding segment types, I have a few thoughts -
  * I-D.ietf-spring-segment-routing-policy uses Type A,B,C,...,
whereas you use Type 1,2,3..
  * Should we use identity here instead of enum, to allow for future
segment types to be defined?
 - Please describe the use of group-id and subgroup-id for
disjointness, this was not clear from yang or the text
 - The constraints currently defined are quite minimal, is there any
reason for that? I feel more constraint and optimization criteria
should be supported.
 - How do we relate the information in forwarding-paths to the
candidate path? Also, where would the inactive candidate paths
received from BGP/PCEP stored in this model (assumption that
forwarding-paths are active only)? Maybe segment-lists for dynamic
paths should be added as well?

Suggestions for improving YANG -
- Add references such as during import and important leaves.
- Use generic-path-disjointness in ietf-te-types instead of defining a
new identity for path-disjointness
- Use of identity for protocol-origin-type (instead of enum) to allow
other protocols to be added easily
- Use of labels as a key in a label stack is incorrect (see grouping
mpls-label-stack), as you could have the same label repeated in the
stack.
- sid-algorithm, color, and name should have its own typedef
- Run "pyang -f yang --keep-comments --yang-line-length 69 <FILE>" to
help with formatting.

Thanks!
Dhruv

On Mon, Jul 13, 2020 at 9:08 PM James Guichard
<james.n.guichard@futurewei.com> wrote:
>
> Dear WG:
>
>
>
> This email begins a 2 week WG adoption call for https://datatracker.ietf.org/doc/draft-raza-spring-sr-policy-yang/ ending Monday 27th July 2020.
>
>
>
> Please speak up if you support or oppose adopting this document into the WG. Please also provide comments/reasons for that support (or lack thereof). Silence will not be considered consent.
>
>
>
> Thanks!
>
>
>
> Jim, Joel & Bruno
>
>
>
>
>
>
>
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring


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From: Dhruv Dhody <dhruv.ietf@gmail.com>
Date: Sat, 25 Jul 2020 22:51:47 +0530
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To: James Guichard <james.n.guichard@futurewei.com>
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Subject: Re: [spring] WG Adoption Call for draft-raza-spring-srv6-yang
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Hi WG,

I support the adoption of this work and I have thoughts on how to
improve the document -

Some questions/comments -
- Can the title of the I-D be improved?
- Why do you have the config and the state trees separately in Figures
1 and 2? That's out of fashion with NMDA!
- I hope this model is applicable for both the headend router as well
as for the controller. If yes, we should highlight that as well as
make sure the YANG model takes care of this. For example, counters,
forwarding, etc
- The node-capabilities are marked as read-only, but an operator may
want to disable or enable these right?

Suggestions for improving YANG -
- Update copyright year
- path-attrs-cmn is described as "Path properties -common for v4/v6",
in that case, is this the right yang model for it? and should it be in
the generic SR model instead?
- Typedef for algorithm could be useful, it is unit32 here but uint8
in draft-ietf-spring-sr-yang
- What is the purpose of the empty containers end, end_psp, end_usp,
end_psp_usp, end_usd, end_psp_usd, end_usp_usd, end_psp_usp_usd? Are
they placeholders for something?
- Run this "pyang -f yang --keep-comments --yang-line-length 69
<FILE>" to help you with formatting the yang model.

Thanks!
Dhruv

On Tue, Jul 14, 2020 at 3:22 AM James Guichard
<james.n.guichard@futurewei.com> wrote:
>
> Dear WG:
>
>
>
> This email begins a 2 week WG adoption call for https://datatracker.ietf.org/doc/draft-raza-spring-srv6-yang/ ending Monday 27th July 2020.
>
>
>
> Please speak up if you support or oppose adopting this document into the WG. Please also provide comments/reasons for that support (or lack thereof). Silence will not be considered consent.
>
>
>
> Thanks!
>
>
>
> Jim, Joel & Bruno
>
>
>
>
>
>
>
>
>
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring


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From: Jeff Tantsura <jefftant.ietf@gmail.com>
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Date: Sat, 25 Jul 2020 10:27:18 -0700
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To: Dhruv Dhody <dhruv.ietf@gmail.com>
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Subject: Re: [spring] WG Adoption Call for draft-raza-spring-srv6-yang
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Very much with Dhruv here.
While the work is important and should be progressing, overall quality could=
 be significantly improved.
Please use draft-ietf-spring-sr-yang as the example.

Regards,
Jeff

> On Jul 25, 2020, at 10:22, Dhruv Dhody <dhruv.ietf@gmail.com> wrote:
>=20
> =EF=BB=BFHi WG,
>=20
> I support the adoption of this work and I have thoughts on how to
> improve the document -
>=20
> Some questions/comments -
> - Can the title of the I-D be improved?
> - Why do you have the config and the state trees separately in Figures
> 1 and 2? That's out of fashion with NMDA!
> - I hope this model is applicable for both the headend router as well
> as for the controller. If yes, we should highlight that as well as
> make sure the YANG model takes care of this. For example, counters,
> forwarding, etc
> - The node-capabilities are marked as read-only, but an operator may
> want to disable or enable these right?
>=20
> Suggestions for improving YANG -
> - Update copyright year
> - path-attrs-cmn is described as "Path properties -common for v4/v6",
> in that case, is this the right yang model for it? and should it be in
> the generic SR model instead?
> - Typedef for algorithm could be useful, it is unit32 here but uint8
> in draft-ietf-spring-sr-yang
> - What is the purpose of the empty containers end, end_psp, end_usp,
> end_psp_usp, end_usd, end_psp_usd, end_usp_usd, end_psp_usp_usd? Are
> they placeholders for something?
> - Run this "pyang -f yang --keep-comments --yang-line-length 69
> <FILE>" to help you with formatting the yang model.
>=20
> Thanks!
> Dhruv
>=20
>> On Tue, Jul 14, 2020 at 3:22 AM James Guichard
>> <james.n.guichard@futurewei.com> wrote:
>>=20
>> Dear WG:
>>=20
>>=20
>>=20
>> This email begins a 2 week WG adoption call for https://datatracker.ietf.=
org/doc/draft-raza-spring-srv6-yang/ ending Monday 27th July 2020.
>>=20
>>=20
>>=20
>> Please speak up if you support or oppose adopting this document into the W=
G. Please also provide comments/reasons for that support (or lack thereof). S=
ilence will not be considered consent.
>>=20
>>=20
>>=20
>> Thanks!
>>=20
>>=20
>>=20
>> Jim, Joel & Bruno
>>=20
>>=20
>>=20
>>=20
>>=20
>>=20
>>=20
>>=20
>>=20
>> _______________________________________________
>> spring mailing list
>> spring@ietf.org
>> https://www.ietf.org/mailman/listinfo/spring
>=20
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring


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From: Dhruv Dhody <dhruv.ietf@gmail.com>
Date: Sat, 25 Jul 2020 22:57:56 +0530
Message-ID: <CAB75xn5kyQt3d1oEfOeNPYLKpDoGTZ5sv27ELWDLqidTLUvj_A@mail.gmail.com>
To: James Guichard <james.n.guichard@futurewei.com>
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Subject: Re: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn
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Hi WG,

I support adoption on this work, it is in good shape to be adopted to
be in the working group control. Hope the authors/WG find these
comments useful -

(1) I would like to see this work provide more guidance for the
protocol extensions  -
- Virtual network identifiers and its scope
- Identifiers for resource partition
- Virtual network creation/deletion/modify (also recompute because of
network or resource changes)
- manageability consideration wrt to configuring resource-aware
SIDs/virtual networks

(2) Can I have a mix of resource-aware SIDs and normal SIDs in an SR
Path? Worth expanding on this.

(3) Worth expanding on the dynamic allocation of SIDs by network nodes
in section 3.

(4) SR Policy should also need to be Virtual-network-aware and how
steering happens to a VN-aware SR policy could be clarified.

Thanks!
Dhruv





On Wed, Jul 15, 2020 at 4:47 PM James Guichard
<james.n.guichard@futurewei.com> wrote:
>
> Dear WG:
>
>
>
> This email begins a 2 week WG adoption call for https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/ ending Wednesday 29th July 2020.
>
>
>
> Please speak up if you support or oppose adopting this document into the WG. Please also provide comments/reasons for that support (or lack thereof). Silence will not be considered consent.
>
>
>
> Thanks!
>
>
>
> Jim, Joel & Bruno
>
>
>
>
>
>
>
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring


From nobody Sat Jul 25 10:49:16 2020
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From: "Joel M. Halpern" <jmh@joelhalpern.com>
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Subject: [spring] Dynamic Proxy in SR service programming
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<chair hat off; speaking only as an individual member of the WG>

In looking at the description of the dyanmic proxy behavior, I was 
reminded of a problem that the SFC working group wrestled with and never 
resolved to our satisfaction.  (In the SFC case, since we were not 
specifying the behavior of the proxy, we could leave it to implementors. 
  This document seems to be more specific.)

As I understand the draft, the dyanicm proxy for a non-SR aware service 
function can be handling packets subject ot multiple service policies. 
That is desirable.  These separate policies will have separate cache 
entries.  Also good.
But as far as I can tell, the re-attachment of the cached header to the 
returned packet (from the non-SR aware SF) is done based on first come, 
first cache.
What happens if, due to differences in internal processing, packets from 
different service policies get swapped in time.  So packets go in 
Packet-1, Packet-2, but come out Packet-2, Packet-1.  The text seems to 
result in the proxy reattaching the SR information to the wrong packets?

Am I misreading the text?

Depending upon ones, reading, this may apply to a case where a single 
device is service as multiple static proxies for a single non-SR aware 
SF.  It was not clear if that was intended to be allowed, but if so the 
same issue would seem to apply.

Yours,
Joel
<chair hat returning to wherever it belongs.>


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Subject: [spring] General Proxy behavior in SR Service Programming
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<chair hat off for now;  This issue may, depending upon resolution, 
become a chair issue, in which case, I will look at it through a 
different lens.  Heck, I may even disagree with myself.>

Let me start by saying that I understand and support what the draft is 
trying to do.  While I like SFC, I am under no illusions that it is or 
should be the only answer to service chaining / service programming.

Further, I understand what the proxies are for.  They seem necessary. 
To deploy this stuff, we have to be able to work with older equipment. 
Proxies seem the best way to do so.

The document is even clear that  proxy is a new kind of thing.  Good.

In order to do its job, and as I read this document, the SR proxies (of 
various kinds) violate the rules for MPLS processing, SRH processing, 
and IPv6 processing at various points.  They have to.

It seems to me that we need to accept this requirement, and state it 
clearly.  Most likely, this would suggest that we will want some form of 
signoff from the MPLS and 6man working groups that these violations, for 
these specific reasons, are acceptable to the community.  Personally, I 
would rather have the discussion soon, rather than pretending it is a 
non-issue and having the discussion during IETF last call.

Maybe I am misreading, and things are less conflicted.  That would be great.

Yours,
Joel

<chair hat returning to wherever it belongs.>


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From: Tarek Saad <tsaad.net@gmail.com>
To: James Guichard <james.n.guichard@futurewei.com>, "spring@ietf.org" <spring@ietf.org>
CC: "spring-chairs@ietf.org" <spring-chairs@ietf.org>
Thread-Topic: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn
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Subject: Re: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn
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Hi WG,

This document is touching important topics regarding forwarding on specific=
 set of resources in the network (such as those that define a network slice=
).
For this, it=92s important to be able to identify transiting traffic as bel=
onging to a specific slice so as to impose the specific behavior upon forwa=
rding the traffic on the associated resources.

This draft is proposing to allocate/assign different labels/SIDs (per topol=
ogical element =96 either node or link) to identify the specific resource p=
er slice and the respective forwarding behavior.
This may work for smaller networks (and for limited number of slices), but =
there are concerns that it would run into scale problems (related to # of r=
equired labels to allocate and amount of IGP state required for the differe=
nt SIDs) - as number of topological elements in the network grows and numbe=
r of vertical/ horizontal slices grows.

It might be useful to define a mechanism by which specific allocated resour=
ces for a given link or node are to be identified and not describe how virt=
ual network topologies are to be constructed. This is because the topologie=
s are not necessarily virtual and because there are a multiplicity of uses =
for this mechanism beyond constructing subsets of the underlay network topo=
logy.

We believe encoding the slice identifier separate from the forwarding instr=
uction can yield better scale and still allow for steering on the specific =
resource. We intend to publish something along those lines in the coming ne=
xt couple of weeks to gather more feedback.

Regards,
Tarek


From: spring <spring-bounces@ietf.org> on behalf of James Guichard <james.n=
.guichard@futurewei.com>
Date: Wednesday, July 15, 2020 at 7:17 AM
To: "spring@ietf.org" <spring@ietf.org>
Cc: "spring-chairs@ietf.org" <spring-chairs@ietf.org>
Subject: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vp=
n

Dear WG:

This email begins a 2 week WG adoption call for https://datatracker.ietf.or=
g/doc/draft-dong-spring-sr-for-enhanced-vpn/ ending Wednesday 29th July 202=
0.

Please speak up if you support or oppose adopting this document into the WG=
. Please also provide comments/reasons for that support (or lack thereof). =
Silence will not be considered consent.

Thanks!

Jim, Joel & Bruno




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<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;color:black">Hi WG,<=
o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;color:black"><o:p>&n=
bsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;color:black">This do=
cument is touching important topics regarding forwarding on specific set of=
 resources in the network (such as those that define a network slice).<o:p>=
</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;color:black">For thi=
s, it=92s important to be able to identify transiting traffic as belonging =
to a specific slice so as to impose the specific behavior upon forwarding t=
he traffic on the associated resources.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;color:black"><o:p>&n=
bsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;color:black">This dr=
aft is proposing to allocate/assign different labels/SIDs (per topological =
element =96 either node or link) to identify the specific resource per slic=
e and the respective forwarding behavior.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;color:black">This ma=
y work for smaller networks (and for limited number of slices), but there a=
re concerns that it would run into scale problems (related to # of required=
 labels to allocate and amount of IGP
 state required for the different SIDs) - as number of topological elements=
 in the network grows and number of vertical/ horizontal slices grows.<o:p>=
</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;color:black"><o:p>&n=
bsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;color:black">It migh=
t be useful to define a mechanism by which specific allocated resources for=
 a given link or node are to be identified and not describe how virtual net=
work topologies are to be constructed.
 This is because the topologies are not necessarily virtual and because the=
re are a multiplicity of uses for this mechanism beyond constructing subset=
s of the underlay network topology.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;color:black">&nbsp;<=
o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;color:black">We beli=
eve encoding the slice identifier separate from the forwarding instruction =
can yield better scale and still allow for steering on the specific resourc=
e. We intend to publish something along
 those lines in the coming next couple of weeks to gather more feedback.<o:=
p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;color:black"><o:p>&n=
bsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;color:black">Regards=
,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt;color:black">Tarek<o=
:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt"><o:p>&nbsp;</o:p></=
span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt"><o:p>&nbsp;</o:p></=
span></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><b><span style=3D"font-si=
ze:12.0pt;color:black">From:
</span></b><span style=3D"font-size:12.0pt;color:black">spring &lt;spring-b=
ounces@ietf.org&gt; on behalf of James Guichard &lt;james.n.guichard@future=
wei.com&gt;<br>
<b>Date: </b>Wednesday, July 15, 2020 at 7:17 AM<br>
<b>To: </b>&quot;spring@ietf.org&quot; &lt;spring@ietf.org&gt;<br>
<b>Cc: </b>&quot;spring-chairs@ietf.org&quot; &lt;spring-chairs@ietf.org&gt=
;<br>
<b>Subject: </b>[spring] WG Adoption Call for draft-dong-spring-sr-for-enha=
nced-vpn<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in"><o:p>&nbsp;</o:p></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">Dear WG:<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">This email begins a 2 wee=
k WG adoption call for
<a href=3D"https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanc=
ed-vpn/">
https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/</a>=
 ending Wednesday 29<sup>th</sup> July 2020.
<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">Please speak up if you su=
pport or oppose adopting this document into the WG. Please also provide com=
ments/reasons for that support (or lack thereof). Silence will not be consi=
dered consent.<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">Thanks!<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">Jim, Joel &amp; Bruno<o:p=
></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:.5in">&nbsp;<o:p></o:p></p>
</div>
</div>
</body>
</html>

--_000_DM5PR1901MB2150139D3BA8F4A10127010AFC740DM5PR1901MB2150_--


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Subject: [spring] Fwd: Encourage people to visit NomCom during office hours
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Forwarding for your information as requested by the nomcom chair.
Thank you,
Joel

-------- Forwarded Message --------
Subject: Encourage people to visit NomCom during office hours
Date: Sat, 25 Jul 2020 20:16:18 +0000
From: STARK, BARBARA H <bs7652@att.com>
To: 'Working Group Chairs' <wgchairs@ietf.org>

Hi WG Chairs,
Could you let your groups know that if anyone is interested in finding 
out more about NomCom or about standing for an I* position (or just 
wants to say Hi), they can visit with NomCom during office hours next 
week? Thx,
Barbara

Here is the message I sent to the ietf list:
-------------------------------------------------------------------------------------------------------------------------------
I wanted to let everyone know that NomCom will be holding some office 
hours next week. If you want to stop by and talk with us (just to say 
Hi, ask about NomCom, ask about being a nominee for the various I* 
positions, etc.), we'd love to see and hear from you.

The date and times (which are also posted on the IETF 108 Agenda) are:

     Monday, July 27, 16:00-17:00 UTC WebEx: 
https://ietf.webex.com/ietf/j.php?MTID=m13c41ae118e538b6d25efb25d41307ee
     Tuesday, July 28, 09:30-10:30 UTC WebEx: 
https://ietf.webex.com/ietf/j.php?MTID=m6132b48c3eac5469a41043ce55dada20
     Thursday, July 30, 20:00-21:00 UTC WebEx: 
https://ietf.webex.com/ietf/j..php?MTID=mf7ce451931e35818fd7b3bf44abd1026

In addition to being available by WebEx, those of us who can will 
simultaneously be on Gather.Town (possibly in a special NomCom corner). 
To find us, the easiest way is to go to the Participants list (at right 
of the Gather screen), find "Barbara Stark", left click on my name and 
select "Locate".

See you next week!
Barbara


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From: Yingzhen Qu <yingzhen.qu@futurewei.com>
To: Dhruv Dhody <dhruv.ietf@gmail.com>, James Guichard <james.n.guichard@futurewei.com>
CC: "spring@ietf.org" <spring@ietf.org>, "spring-chairs@ietf.org" <spring-chairs@ietf.org>
Thread-Topic: [spring] WG Adoption Call for draft-raza-spring-srv6-yang
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Subject: Re: [spring] WG Adoption Call for draft-raza-spring-srv6-yang
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From: Stefano Salsano <stefano.salsano@uniroma2.it>
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Subject: Re: [spring] Dynamic Proxy in SR service programming
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Il 2020-07-25 19:49, Joel M. Halpern ha scritto:
> <chair hat off; speaking only as an individual member of the WG>
> 
> In looking at the description of the dyanmic proxy behavior, I was 
> reminded of a problem that the SFC working group wrestled with and never 
> resolved to our satisfaction.  (In the SFC case, since we were not 
> specifying the behavior of the proxy, we could leave it to implementors. 
>   This document seems to be more specific.)
> 
> As I understand the draft, the dyanicm proxy for a non-SR aware service 
> function can be handling packets subject ot multiple service policies. 
> That is desirable.  These separate policies will have separate cache 
> entries.  Also good.
> But as far as I can tell, the re-attachment of the cached header to the 
> returned packet (from the non-SR aware SF) is done based on first come, 
> first cache.

Hi Joel,

I'm speaking as an author of draft-ietf-spring-sr-service-programming-02 
(but I do not know if my opinion is agreed by all the authors)

my understanding of the dynamic proxy scenario is that a given "non-SR 
aware service function" (aka "legacy VNF") can be associated with a 
single Service Chain at a given time

so you can dynamically change the Service Chain by sending a Packet-2 
with a different SR policy with respect to Packet-1, but this is meant 
to change the Service Chain for the following packets of the flow, 
rather than to operate on a packet-by-packet basis

you are right that operating on a packet-by-packet basis leads to 
inconsistent behavior!

In draft-ietf-spring-sr-service-programming-02, the following limitation 
is associated to the static SR proxy, but it also applies to the dynamic 
proxy:

    However, a static SR proxy
    segment can be used in only one service policy at a time.  As opposed
    to most other segment types, a static SR proxy segment is bound to a
    unique list of segments, which represents a directed SR service
    policy.  This is due to the cached SR information being defined in
    the segment configuration.  This limitation only prevents multiple
    segment lists from using the same static SR proxy segment at the same
    time, but a single segment list can be shared by any number of
    traffic flows.

This is he description of the dynamic proxy:

    The dynamic proxy is an improvement over the static proxy that
    dynamically learns the SR information before removing it from the
    incoming traffic.

Maybe it would be better to explicitly clarify that the same limitation 
of the static SR proxy is applicable: "only one service policy at a 
time"... the difference is that you can change this association 
dynamically, e.g. in the order of few seconds but NOT on a 
packet-by-packet basis

hope that it clarifies...

ciao
Stefano


> What happens if, due to differences in internal processing, packets from 
> different service policies get swapped in time.  So packets go in 
> Packet-1, Packet-2, but come out Packet-2, Packet-1.  The text seems to 
> result in the proxy reattaching the SR information to the wrong packets?
> 
> Am I misreading the text?
> 
> Depending upon ones, reading, this may apply to a case where a single 
> device is service as multiple static proxies for a single non-SR aware 
> SF.  It was not clear if that was intended to be allowed, but if so the 
> same issue would seem to apply.
> 
> Yours,
> Joel
> <chair hat returning to wherever it belongs.>
> 
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring


-- 
*******************************************************************
Stefano Salsano
Professore Associato
Dipartimento Ingegneria Elettronica
Universita' di Roma Tor Vergata
Viale Politecnico, 1 - 00133 Roma - ITALY

http://netgroup.uniroma2.it/Stefano_Salsano/

E-mail  : stefano.salsano@uniroma2.it
Cell.   : +39 320 4307310
Office  : (Tel.) +39 06 72597770 (Fax.) +39 06 72597435
*******************************************************************


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Subject: Re: [spring] Dynamic Proxy in SR service programming
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Thank you.  That does clarify, and it would probably be good to be 
explicit in the document.  (The restriction makes sense, we just need to 
be clear.)

Yours,
Joel

On 7/25/2020 8:31 PM, Stefano Salsano wrote:
> Il 2020-07-25 19:49, Joel M. Halpern ha scritto:
>> <chair hat off; speaking only as an individual member of the WG>
>>
>> In looking at the description of the dyanmic proxy behavior, I was 
>> reminded of a problem that the SFC working group wrestled with and 
>> never resolved to our satisfaction.  (In the SFC case, since we were 
>> not specifying the behavior of the proxy, we could leave it to 
>> implementors.   This document seems to be more specific.)
>>
>> As I understand the draft, the dyanicm proxy for a non-SR aware 
>> service function can be handling packets subject ot multiple service 
>> policies. That is desirable.  These separate policies will have 
>> separate cache entries.  Also good.
>> But as far as I can tell, the re-attachment of the cached header to 
>> the returned packet (from the non-SR aware SF) is done based on first 
>> come, first cache.
> 
> Hi Joel,
> 
> I'm speaking as an author of draft-ietf-spring-sr-service-programming-02 
> (but I do not know if my opinion is agreed by all the authors)
> 
> my understanding of the dynamic proxy scenario is that a given "non-SR 
> aware service function" (aka "legacy VNF") can be associated with a 
> single Service Chain at a given time
> 
> so you can dynamically change the Service Chain by sending a Packet-2 
> with a different SR policy with respect to Packet-1, but this is meant 
> to change the Service Chain for the following packets of the flow, 
> rather than to operate on a packet-by-packet basis
> 
> you are right that operating on a packet-by-packet basis leads to 
> inconsistent behavior!
> 
> In draft-ietf-spring-sr-service-programming-02, the following limitation 
> is associated to the static SR proxy, but it also applies to the dynamic 
> proxy:
> 
>     However, a static SR proxy
>     segment can be used in only one service policy at a time.  As opposed
>     to most other segment types, a static SR proxy segment is bound to a
>     unique list of segments, which represents a directed SR service
>     policy.  This is due to the cached SR information being defined in
>     the segment configuration.  This limitation only prevents multiple
>     segment lists from using the same static SR proxy segment at the same
>     time, but a single segment list can be shared by any number of
>     traffic flows.
> 
> This is he description of the dynamic proxy:
> 
>     The dynamic proxy is an improvement over the static proxy that
>     dynamically learns the SR information before removing it from the
>     incoming traffic.
> 
> Maybe it would be better to explicitly clarify that the same limitation 
> of the static SR proxy is applicable: "only one service policy at a 
> time"... the difference is that you can change this association 
> dynamically, e.g. in the order of few seconds but NOT on a 
> packet-by-packet basis
> 
> hope that it clarifies...
> 
> ciao
> Stefano
> 
> 
>> What happens if, due to differences in internal processing, packets 
>> from different service policies get swapped in time.  So packets go in 
>> Packet-1, Packet-2, but come out Packet-2, Packet-1.  The text seems 
>> to result in the proxy reattaching the SR information to the wrong 
>> packets?
>>
>> Am I misreading the text?
>>
>> Depending upon ones, reading, this may apply to a case where a single 
>> device is service as multiple static proxies for a single non-SR aware 
>> SF.  It was not clear if that was intended to be allowed, but if so 
>> the same issue would seem to apply.
>>
>> Yours,
>> Joel
>> <chair hat returning to wherever it belongs.>
>>
>> _______________________________________________
>> spring mailing list
>> spring@ietf.org
>> https://www.ietf.org/mailman/listinfo/spring
> 
> 


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From: "Dongjie (Jimmy)" <jie.dong@huawei.com>
To: Dhruv Dhody <dhruv.ietf@gmail.com>, James Guichard <james.n.guichard@futurewei.com>
CC: "spring@ietf.org" <spring@ietf.org>, "spring-chairs@ietf.org" <spring-chairs@ietf.org>
Thread-Topic: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn
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Subject: Re: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn
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Hi Dhruv,=20

Thanks for your support and comments. Please see some replies inline:

> -----Original Message-----
> From: spring [mailto:spring-bounces@ietf.org] On Behalf Of Dhruv Dhody
> Sent: Sunday, July 26, 2020 1:28 AM
> To: James Guichard <james.n.guichard@futurewei.com>
> Cc: spring@ietf.org; spring-chairs@ietf.org
> Subject: Re: [spring] WG Adoption Call for
> draft-dong-spring-sr-for-enhanced-vpn
>=20
> Hi WG,
>=20
> I support adoption on this work, it is in good shape to be adopted to be =
in the
> working group control. Hope the authors/WG find these comments useful -
>=20
> (1) I would like to see this work provide more guidance for the protocol
> extensions  -
> - Virtual network identifiers and its scope
> - Identifiers for resource partition
> - Virtual network creation/deletion/modify (also recompute because of
> network or resource changes)
> - manageability consideration wrt to configuring resource-aware SIDs/virt=
ual
> networks

Agree that some more information about the above could be provided in the d=
ocument, and some may be specified in the corresponding control plane draft=
s.=20

>=20
> (2) Can I have a mix of resource-aware SIDs and normal SIDs in an SR Path=
?
> Worth expanding on this.

Yes it is possible to have them mixed in SR path, the usage is up to the re=
quirement and policy.=20

>=20
> (3) Worth expanding on the dynamic allocation of SIDs by network nodes in
> section 3.

OK.

>=20
> (4) SR Policy should also need to be Virtual-network-aware and how steeri=
ng
> happens to a VN-aware SR policy could be clarified.

Yes, SR policy with virtual network constraints is mentioned in 4.3, furthe=
r clarification could be added.=20

Best regards,
Jie

>=20
> Thanks!
> Dhruv
>=20
>=20
>=20
>=20
>=20
> On Wed, Jul 15, 2020 at 4:47 PM James Guichard
> <james.n.guichard@futurewei.com> wrote:
> >
> > Dear WG:
> >
> >
> >
> > This email begins a 2 week WG adoption call for
> https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/
> ending Wednesday 29th July 2020.
> >
> >
> >
> > Please speak up if you support or oppose adopting this document into th=
e
> WG. Please also provide comments/reasons for that support (or lack thereo=
f).
> Silence will not be considered consent.
> >
> >
> >
> > Thanks!
> >
> >
> >
> > Jim, Joel & Bruno
> >
> >
> >
> >
> >
> >
> >
> > _______________________________________________
> > spring mailing list
> > spring@ietf.org
> > https://www.ietf.org/mailman/listinfo/spring
>=20
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring


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From: "Dongjie (Jimmy)" <jie.dong@huawei.com>
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Hi Tarek,

Thanks for your comment, please see some replies inline:

From: spring [mailto:spring-bounces@ietf.org] On Behalf Of Tarek Saad
Sent: Sunday, July 26, 2020 2:57 AM
To: James Guichard <james.n.guichard@futurewei.com>; spring@ietf.org
Cc: spring-chairs@ietf.org
Subject: Re: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhance=
d-vpn

Hi WG,

This document is touching important topics regarding forwarding on specific=
 set of resources in the network (such as those that define a network slice=
).
For this, it's important to be able to identify transiting traffic as belon=
ging to a specific slice so as to impose the specific behavior upon forward=
ing the traffic on the associated resources.

This draft is proposing to allocate/assign different labels/SIDs (per topol=
ogical element - either node or link) to identify the specific resource per=
 slice and the respective forwarding behavior.
This may work for smaller networks (and for limited number of slices), but =
there are concerns that it would run into scale problems (related to # of r=
equired labels to allocate and amount of IGP state required for the differe=
nt SIDs) - as number of topological elements in the network grows and numbe=
r of vertical/ horizontal slices grows.

[Jie] Glad to know that you also think this is an important topic and can b=
e useful for cases such as network slicing (while its applicability is gene=
ral). This document describes the SR based mechanism for this. As mentioned=
 in section 2 of this document, it requires additional SIDs and SRv6 Locato=
rs to be allocated, thus its applicability is for scenarios with limited nu=
mber of virtual networks. The amount of IGP state is discussed in the relev=
ant control plane drafts in LSR WG.

It might be useful to define a mechanism by which specific allocated resour=
ces for a given link or node are to be identified and not describe how virt=
ual network topologies are to be constructed. This is because the topologie=
s are not necessarily virtual and because there are a multiplicity of uses =
for this mechanism beyond constructing subsets of the underlay network topo=
logy.

We believe encoding the slice identifier separate from the forwarding instr=
uction can yield better scale and still allow for steering on the specific =
resource. We intend to publish something along those lines in the coming ne=
xt couple of weeks to gather more feedback.

[Jie] The scalability topic is further described in draft-dong-teas-enhance=
d-vpn-vtn-scalability in TEAS WG, which also provides some guidance for opt=
imization, your review and comment to it are welcome. Thanks.

Best regards,
Jie

Regards,
Tarek


From: spring <spring-bounces@ietf.org<mailto:spring-bounces@ietf.org>> on b=
ehalf of James Guichard <james.n.guichard@futurewei.com<mailto:james.n.guic=
hard@futurewei.com>>
Date: Wednesday, July 15, 2020 at 7:17 AM
To: "spring@ietf.org<mailto:spring@ietf.org>" <spring@ietf.org<mailto:sprin=
g@ietf.org>>
Cc: "spring-chairs@ietf.org<mailto:spring-chairs@ietf.org>" <spring-chairs@=
ietf.org<mailto:spring-chairs@ietf.org>>
Subject: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vp=
n

Dear WG:

This email begins a 2 week WG adoption call for https://datatracker.ietf.or=
g/doc/draft-dong-spring-sr-for-enhanced-vpn/ ending Wednesday 29th July 202=
0.

Please speak up if you support or oppose adopting this document into the WG=
. Please also provide comments/reasons for that support (or lack thereof). =
Silence will not be considered consent.

Thanks!

Jim, Joel & Bruno




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<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
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<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">Thanks for your comment, please see some replies inline:
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><a name=3D"_MailEndCompose"><span lang=3D"EN-US" sty=
le=3D"font-size:10.5pt;color:#1F497D"><o:p>&nbsp;</o:p></span></a></p>
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<p class=3D"MsoNormal"><b><span lang=3D"EN-US">From:</span></b><span lang=
=3D"EN-US"> spring [mailto:spring-bounces@ietf.org]
<b>On Behalf Of </b>Tarek Saad<br>
<b>Sent:</b> Sunday, July 26, 2020 2:57 AM<br>
<b>To:</b> James Guichard &lt;james.n.guichard@futurewei.com&gt;; spring@ie=
tf.org<br>
<b>Cc:</b> spring-chairs@ietf.org<br>
<b>Subject:</b> Re: [spring] WG Adoption Call for draft-dong-spring-sr-for-=
enhanced-vpn<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:12.0pt;color=
:black">Hi WG,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:12.0pt;color=
:black"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:12.0pt;color=
:black">This document is touching important topics regarding forwarding on =
specific set of resources in the network (such as those that define a netwo=
rk slice).<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:12.0pt;color=
:black">For this, it&#8217;s important to be able to identify transiting tr=
affic as belonging to a specific slice so as to impose the specific behavio=
r upon forwarding the traffic on the associated
 resources.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:12.0pt;color=
:black">This draft is proposing to allocate/assign different labels/SIDs (p=
er topological element &#8211; either node or link) to identify the specifi=
c resource per slice and the respective forwarding
 behavior.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:12.0pt;color=
:black">This may work for smaller networks (and for limited number of slice=
s), but there are concerns that it would run into scale problems (related t=
o # of required labels to allocate and
 amount of IGP state required for the different SIDs) - as number of topolo=
gical elements in the network grows and number of vertical/ horizontal slic=
es grows.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">[Jie] Glad to know that you also think this is an important topic=
 and can be useful for cases such as network slicing (while its applicabili=
ty is general). This document describes
 the SR based mechanism for this. As mentioned in section 2 of this documen=
t, it requires additional SIDs and SRv6 Locators to be allocated, thus its =
applicability is for scenarios with limited number of virtual networks. The=
 amount of IGP state is discussed
 in the relevant control plane drafts in LSR WG. <o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:12.0pt;color=
:black"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:12.0pt;color=
:black">It might be useful to define a mechanism by which specific allocate=
d resources for a given link or node are to be identified and not describe =
how virtual network topologies are to
 be constructed. This is because the topologies are not necessarily virtual=
 and because there are a multiplicity of uses for this mechanism beyond con=
structing subsets of the underlay network topology.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:12.0pt;color=
:black"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:12.0pt;color=
:black">We believe encoding the slice identifier separate from the forwardi=
ng instruction can yield better scale and still allow for steering on the s=
pecific resource. We intend to publish
 something along those lines in the coming next couple of weeks to gather m=
ore feedback.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">[Jie] The scalability topic is further described in draft-dong-te=
as-enhanced-vpn-vtn-scalability in TEAS WG, which also provides some guidan=
ce for optimization, your review and comment
 to it are welcome. Thanks.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">Best regards,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">Jie<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:12.0pt;color=
:black"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:12.0pt;color=
:black">Regards,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:12.0pt;color=
:black">Tarek<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:12.0pt"><o:p=
>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:12.0pt"><o:p=
>&nbsp;</o:p></span></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><b><span lang=3D"EN-US"=
 style=3D"font-size:12.0pt;color:black">From:
</span></b><span lang=3D"EN-US" style=3D"font-size:12.0pt;color:black">spri=
ng &lt;<a href=3D"mailto:spring-bounces@ietf.org">spring-bounces@ietf.org</=
a>&gt; on behalf of James Guichard &lt;<a href=3D"mailto:james.n.guichard@f=
uturewei.com">james.n.guichard@futurewei.com</a>&gt;<br>
<b>Date: </b>Wednesday, July 15, 2020 at 7:17 AM<br>
<b>To: </b>&quot;<a href=3D"mailto:spring@ietf.org">spring@ietf.org</a>&quo=
t; &lt;<a href=3D"mailto:spring@ietf.org">spring@ietf.org</a>&gt;<br>
<b>Cc: </b>&quot;<a href=3D"mailto:spring-chairs@ietf.org">spring-chairs@ie=
tf.org</a>&quot; &lt;<a href=3D"mailto:spring-chairs@ietf.org">spring-chair=
s@ietf.org</a>&gt;<br>
<b>Subject: </b>[spring] WG Adoption Call for draft-dong-spring-sr-for-enha=
nced-vpn<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span lang=3D"EN-US"><o=
:p>&nbsp;</o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span lang=3D"EN-US">De=
ar WG:<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span lang=3D"EN-US">&n=
bsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span lang=3D"EN-US">Th=
is email begins a 2 week WG adoption call for
<a href=3D"https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanc=
ed-vpn/">
https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/</a>=
 ending Wednesday 29<sup>th</sup> July 2020.
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span lang=3D"EN-US">&n=
bsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span lang=3D"EN-US">Pl=
ease speak up if you support or oppose adopting this document into the WG. =
Please also provide comments/reasons for that support (or lack thereof). Si=
lence will not be considered consent.<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span lang=3D"EN-US">&n=
bsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span lang=3D"EN-US">Th=
anks!<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span lang=3D"EN-US">&n=
bsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span lang=3D"EN-US">Ji=
m, Joel &amp; Bruno<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span lang=3D"EN-US">&n=
bsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span lang=3D"EN-US">&n=
bsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:36.0pt"><span lang=3D"EN-US">&n=
bsp;<o:p></o:p></span></p>
</div>
</div>
</div>
</body>
</html>

--_000_67ddb317132b4925899987941e4f3126huaweicom_--


From nobody Sun Jul 26 12:17:34 2020
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Subject: [spring] I-D Action: draft-ietf-spring-sr-replication-segment-00.txt
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A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Source Packet Routing in Networking WG of the IETF.

        Title           : SR Replication Segment for Multi-point Service Delivery
        Authors         : Daniel Voyer (editor)
                          Clarence Filsfils
                          Rishabh Parekh
                          Hooman Bidgoli
                          Zhaohui Zhang
	Filename        : draft-ietf-spring-sr-replication-segment-00.txt
	Pages           : 10
	Date            : 2020-07-26

Abstract:
   This document describes the SR Replication segment for Multi-point
   service delivery.  A SR Replication segment allows a packet to be
   replicated from a replication node to downstream nodes.



The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-spring-sr-replication-segment/

There are also htmlized versions available at:
https://tools.ietf.org/html/draft-ietf-spring-sr-replication-segment-00
https://datatracker.ietf.org/doc/html/draft-ietf-spring-sr-replication-segment-00


Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.

Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/



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Subject: Re: [spring] General Proxy behavior in SR Service Programming
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To: "Francois Clad (fclad)" <fclad@cisco.com>, Stefano Salsano <stefano.salsano@uniroma2.it>, "spring@ietf.org" <spring@ietf.org>
References: <9175c5f7-0f1a-38db-55e5-0a0255a43622@joelhalpern.com> <acffc87a-7918-5b06-8bc5-a36fc175ba76@uniroma2.it> <47f13681-caf9-64ed-8ca7-604f4d552983@joelhalpern.com> <421B04D6-14B1-4A46-A2B9-93B999A5424F@cisco.com>
From: "Joel M. Halpern" <jmh@joelhalpern.com>
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Subject: Re: [spring] Dynamic Proxy in SR service programming
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Thank you.  I think it would help if this were spelled out more clearly 
in the draft.

Yours,
Joel

On 7/26/2020 3:32 PM, Francois Clad (fclad) wrote:
> Hi Joel,
> 
> Thank you for your email.
> 
> At high-level, the dynamic proxy combines a caching mechanism with a mapping scheme that associates cache entries to packets or flows.
> 
> There are many possible mapping schemes, each has pros and cons that make it more suitable in some environments and less in others. This I-D describes a simple one, which is interface-based (or VLAN-based), and implies that a dynamic proxy SID is used in a single SID-list at a time. This makes it particularly suitable for container-based environments, where VNFs are spawned on a per-SFC basis.
> 
> In different environments, other mapping techniques could be used, such as those described in draft-song-sfc-legacy-sf-mapping.
> 
> Cheers,
> Francois
> 
> 
> ï»¿On 26/07/2020 02:57, "spring on behalf of Joel M. Halpern" <spring-bounces@ietf.org on behalf of jmh@joelhalpern.com> wrote:
> 
>      Thank you.  That does clarify, and it would probably be good to be
>      explicit in the document.  (The restriction makes sense, we just need to
>      be clear.)
> 
>      Yours,
>      Joel
> 
>      On 7/25/2020 8:31 PM, Stefano Salsano wrote:
>      > Il 2020-07-25 19:49, Joel M. Halpern ha scritto:
>      >> <chair hat off; speaking only as an individual member of the WG>
>      >>
>      >> In looking at the description of the dyanmic proxy behavior, I was
>      >> reminded of a problem that the SFC working group wrestled with and
>      >> never resolved to our satisfaction.  (In the SFC case, since we were
>      >> not specifying the behavior of the proxy, we could leave it to
>      >> implementors.   This document seems to be more specific.)
>      >>
>      >> As I understand the draft, the dyanicm proxy for a non-SR aware
>      >> service function can be handling packets subject ot multiple service
>      >> policies. That is desirable.  These separate policies will have
>      >> separate cache entries.  Also good.
>      >> But as far as I can tell, the re-attachment of the cached header to
>      >> the returned packet (from the non-SR aware SF) is done based on first
>      >> come, first cache.
>      >
>      > Hi Joel,
>      >
>      > I'm speaking as an author of draft-ietf-spring-sr-service-programming-02
>      > (but I do not know if my opinion is agreed by all the authors)
>      >
>      > my understanding of the dynamic proxy scenario is that a given "non-SR
>      > aware service function" (aka "legacy VNF") can be associated with a
>      > single Service Chain at a given time
>      >
>      > so you can dynamically change the Service Chain by sending a Packet-2
>      > with a different SR policy with respect to Packet-1, but this is meant
>      > to change the Service Chain for the following packets of the flow,
>      > rather than to operate on a packet-by-packet basis
>      >
>      > you are right that operating on a packet-by-packet basis leads to
>      > inconsistent behavior!
>      >
>      > In draft-ietf-spring-sr-service-programming-02, the following limitation
>      > is associated to the static SR proxy, but it also applies to the dynamic
>      > proxy:
>      >
>      >     However, a static SR proxy
>      >     segment can be used in only one service policy at a time.  As opposed
>      >     to most other segment types, a static SR proxy segment is bound to a
>      >     unique list of segments, which represents a directed SR service
>      >     policy.  This is due to the cached SR information being defined in
>      >     the segment configuration.  This limitation only prevents multiple
>      >     segment lists from using the same static SR proxy segment at the same
>      >     time, but a single segment list can be shared by any number of
>      >     traffic flows.
>      >
>      > This is he description of the dynamic proxy:
>      >
>      >     The dynamic proxy is an improvement over the static proxy that
>      >     dynamically learns the SR information before removing it from the
>      >     incoming traffic.
>      >
>      > Maybe it would be better to explicitly clarify that the same limitation
>      > of the static SR proxy is applicable: "only one service policy at a
>      > time"... the difference is that you can change this association
>      > dynamically, e.g. in the order of few seconds but NOT on a
>      > packet-by-packet basis
>      >
>      > hope that it clarifies...
>      >
>      > ciao
>      > Stefano
>      >
>      >
>      >> What happens if, due to differences in internal processing, packets
>      >> from different service policies get swapped in time.  So packets go in
>      >> Packet-1, Packet-2, but come out Packet-2, Packet-1.  The text seems
>      >> to result in the proxy reattaching the SR information to the wrong
>      >> packets?
>      >>
>      >> Am I misreading the text?
>      >>
>      >> Depending upon ones, reading, this may apply to a case where a single
>      >> device is service as multiple static proxies for a single non-SR aware
>      >> SF.  It was not clear if that was intended to be allowed, but if so
>      >> the same issue would seem to apply.
>      >>
>      >> Yours,
>      >> Joel
>      >> <chair hat returning to wherever it belongs.>
>      >>
>      >> _______________________________________________
>      >> spring mailing list
>      >> spring@ietf.org
>      >> https://www.ietf.org/mailman/listinfo/spring
>      >
>      >
> 
>      _______________________________________________
>      spring mailing list
>      spring@ietf.org
>      https://www.ietf.org/mailman/listinfo/spring
> 


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To: "Francois Clad (fclad)" <fclad@cisco.com>, "spring@ietf.org" <spring@ietf.org>
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Subject: Re: [spring] General Proxy behavior in SR Service Programming
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In the shared memory case, indeed, it is very reasonable to look at the 
proxy as an arm of the function.
In SFC, we do look at it (the proxy as an arm of the SF) that way more 
generally.  We can do that because the SFC architecture calls that out.

Given that the other cases do involve network transfer of packets, and 
thus are visible, and given that neither the SR architecture, the MPLS 
architecture, nor the SR architecture call out such things, it seems 
that we need to be explicit.  To be clear, I think it is a very 
reasonable approach.   Much mroe reasonable, for example, than NAT in 
its various incarnations.  All I am asking is that we state explicitly 
that we understand that as an architectural component this violates 
existing rules, and does so over a limited scope so as to preserve the 
desired / needed behavior over the larger scope.  The one thing we may 
need to be clear about is the degree of proximity required between the 
SF and its serving proxy.  If we treat this as legitimate arbitrary 
networking, it gets out of hand.

Yours,
Joel

On 7/26/2020 3:33 PM, Francois Clad (fclad) wrote:
> Hi Joel,
> 
> Thank you for your email.
> 
> A proxy and its associated SF can be seen from the network as a single entity: a packet enters this entity from the network, gets processed by the SF, and exits towards the network. The packet modifications that occur between the entry and exit of this entity are compliant with existing standards.
> 
> Whatever happens between the proxy and SF is internal processing and invisible to the network. However, a network operator or controller needs some information about the proxyâ€™s internal behavior to determine an appropriate SID-list through the SF and possibly configure the proxy.
> 
> Cheers,
> Francois
> 
> 
> ï»¿On 25/07/2020 20:23, "spring on behalf of Joel M. Halpern" <spring-bounces@ietf.org on behalf of jmh@joelhalpern.com> wrote:
> 
>      <chair hat off for now;  This issue may, depending upon resolution,
>      become a chair issue, in which case, I will look at it through a
>      different lens.  Heck, I may even disagree with myself.>
> 
>      Let me start by saying that I understand and support what the draft is
>      trying to do.  While I like SFC, I am under no illusions that it is or
>      should be the only answer to service chaining / service programming.
> 
>      Further, I understand what the proxies are for.  They seem necessary.
>      To deploy this stuff, we have to be able to work with older equipment.
>      Proxies seem the best way to do so.
> 
>      The document is even clear that  proxy is a new kind of thing.  Good.
> 
>      In order to do its job, and as I read this document, the SR proxies (of
>      various kinds) violate the rules for MPLS processing, SRH processing,
>      and IPv6 processing at various points.  They have to.
> 
>      It seems to me that we need to accept this requirement, and state it
>      clearly.  Most likely, this would suggest that we will want some form of
>      signoff from the MPLS and 6man working groups that these violations, for
>      these specific reasons, are acceptable to the community.  Personally, I
>      would rather have the discussion soon, rather than pretending it is a
>      non-issue and having the discussion during IETF last call.
> 
>      Maybe I am misreading, and things are less conflicted.  That would be great.
> 
>      Yours,
>      Joel
> 
>      <chair hat returning to wherever it belongs.>
> 
>      _______________________________________________
>      spring mailing list
>      spring@ietf.org
>      https://www.ietf.org/mailman/listinfo/spring
> 


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Subject: [spring] I-D Action: draft-ietf-spring-sr-yang-18.txt
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A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Source Packet Routing in Networking WG of the IETF.

        Title           : YANG Data Model for Segment Routing
        Authors         : Stephane Litkowski
                          Yingzhen Qu
                          Acee Lindem
                          Pushpasis Sarkar
                          Jeff Tantsura
	Filename        : draft-ietf-spring-sr-yang-18.txt
	Pages           : 33
	Date            : 2020-07-26

Abstract:
   This document defines a YANG data model for segment routing
   configuration and operation, which is to be augmented by different
   segment routing data planes.  The document also defines a YANG model
   that is intended to be used on network elements to configure or
   operate segment routing MPLS data plane, as well as some generic
   containers to be reused by IGP protocol modules to support segment
   routing.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-spring-sr-yang/

There are also htmlized versions available at:
https://tools.ietf.org/html/draft-ietf-spring-sr-yang-18
https://datatracker.ietf.org/doc/html/draft-ietf-spring-sr-yang-18

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-spring-sr-yang-18


Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.

Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/



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From nobody Sun Jul 26 22:57:36 2020
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From: "Weiqiang Cheng" <chengweiqiang@chinamobile.com>
To: "'James Guichard'" <james.n.guichard@futurewei.com>, <spring@ietf.org>
Cc: <spring-chairs@ietf.org>
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Date: Mon, 27 Jul 2020 13:56:26 +0800
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Subject: Re: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn
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I support the adoption of this document.

It provides a generic and useful enhancement to SR, and the document is =
in
good shape.=20

=20

B.R.

Weiqiang Cheng

=20

=B7=A2=BC=FE=C8=CB: spring [mailto:spring-bounces@ietf.org] =B4=FA=B1=ED =
James Guichard
=B7=A2=CB=CD=CA=B1=BC=E4: 2020=C4=EA7=D4=C215=C8=D5 19:17
=CA=D5=BC=FE=C8=CB: spring@ietf.org
=B3=AD=CB=CD: spring-chairs@ietf.org
=D6=F7=CC=E2: [spring] WG Adoption Call for =
draft-dong-spring-sr-for-enhanced-vpn

=20

Dear WG:

=20

This email begins a 2 week WG adoption call for
https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/
ending Wednesday 29th July 2020.=20

=20

Please speak up if you support or oppose adopting this document into the =
WG.
Please also provide comments/reasons for that support (or lack thereof).
Silence will not be considered consent.

=20

Thanks!

=20

Jim, Joel & Bruno

=20

=20

=20


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link=3D"#0563C1" vlink=3D"#954F72"><div class=3DWordSection1><p =
class=3DMsoNormal><span lang=3DEN-US>I support the adoption of this =
document.<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US>It provides a generic and useful enhancement to SR, and the =
document is in good shape. <o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.5pt;color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.5pt;color:#1F497D'>B.R.<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.5pt;color:#1F497D'>Weiqiang =
Cheng<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.5pt;color:#1F497D'><o:p>&nbsp;</o:p></span></p><div=
><div style=3D'border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt =
0cm 0cm 0cm'><p class=3DMsoNormal><b><span =
style=3D'font-size:10.0pt;font-family:=CB=CE=CC=E5'>=B7=A2=BC=FE=C8=CB<sp=
an lang=3DEN-US>:</span></span></b><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:=CB=CE=CC=E5'> spring =
[mailto:spring-bounces@ietf.org] </span><b><span =
style=3D'font-size:10.0pt;font-family:=CB=CE=CC=E5'>=B4=FA=B1=ED =
</span></b><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:=CB=CE=CC=E5'>James =
Guichard<br></span><b><span =
style=3D'font-size:10.0pt;font-family:=CB=CE=CC=E5'>=B7=A2=CB=CD=CA=B1=BC=
=E4<span lang=3DEN-US>:</span></span></b><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:=CB=CE=CC=E5'> 2020</span><span =
style=3D'font-size:10.0pt;font-family:=CB=CE=CC=E5'>=C4=EA<span =
lang=3DEN-US>7</span>=D4=C2<span lang=3DEN-US>15</span>=C8=D5<span =
lang=3DEN-US> 19:17<br></span><b>=CA=D5=BC=FE=C8=CB<span =
lang=3DEN-US>:</span></b><span lang=3DEN-US> =
spring@ietf.org<br></span><b>=B3=AD=CB=CD<span =
lang=3DEN-US>:</span></b><span lang=3DEN-US> =
spring-chairs@ietf.org<br></span><b>=D6=F7=CC=E2<span =
lang=3DEN-US>:</span></b><span lang=3DEN-US> [spring] WG Adoption Call =
for =
draft-dong-spring-sr-for-enhanced-vpn<o:p></o:p></span></span></p></div><=
/div><p class=3DMsoNormal><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US>Dear WG:<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US>This email begins a 2 week WG adoption call for <a =
href=3D"https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhance=
d-vpn/">https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhance=
d-vpn/</a> ending Wednesday 29<sup>th</sup> July 2020. =
<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US>Please speak up if you support or oppose adopting this =
document into the WG. Please also provide comments/reasons for that =
support (or lack thereof). Silence will not be considered =
consent.<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US>Thanks!<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US>Jim, Joel &amp; Bruno<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></p></div></body></html>
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From: "Luis M. Contreras" <contreras.ietf@gmail.com>
Date: Mon, 27 Jul 2020 12:49:18 +0200
Message-ID: <CAE4dcxnOxzW95P7aWAZ8eZ57rqOdHM40zC91QEO4cLECxs5WwQ@mail.gmail.com>
To: James Guichard <james.n.guichard@futurewei.com>
Cc: "spring@ietf.org" <spring@ietf.org>, "spring-chairs@ietf.org" <spring-chairs@ietf.org>
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Subject: Re: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn
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Hi all,

Yes, I support the adoption. The document is in a good shape. I would
suggest however to include some hints about the kind of resources
considered so far (by now there is an example considering bandwidth; I
guess other kind of resources could represent further complexity).

Thanks

Luis

El mi=C3=A9., 15 jul. 2020 a las 13:17, James Guichard (<
james.n.guichard@futurewei.com>) escribi=C3=B3:

> Dear WG:
>
>
>
> This email begins a 2 week WG adoption call for
> https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/
> ending Wednesday 29th July 2020.
>
>
>
> Please speak up if you support or oppose adopting this document into the
> WG. Please also provide comments/reasons for that support (or lack
> thereof). Silence will not be considered consent.
>
>
>
> Thanks!
>
>
>
> Jim, Joel & Bruno
>
>
>
>
>
>
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
>


--=20
___________________________________________
Luis M. Contreras
contreras.ietf@gmail.com
luismiguel.contrerasmurillo@telefonica.com
Global CTIO unit / Telefonica

--000000000000d5612805ab6a1333
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Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr">Hi all,<div><br></div><div>Yes, I support the adoption. Th=
e document is in a good shape. I would suggest however to include some hint=
s about the kind of resources considered so far (by now there is an example=
 considering bandwidth; I guess other kind of resources could represent fur=
ther complexity).</div><div><br></div><div>Thanks</div><div><br></div><div>=
Luis</div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gm=
ail_attr">El mi=C3=A9., 15 jul. 2020 a las 13:17, James Guichard (&lt;<a hr=
ef=3D"mailto:james.n.guichard@futurewei.com">james.n.guichard@futurewei.com=
</a>&gt;) escribi=C3=B3:<br></div><blockquote class=3D"gmail_quote" style=
=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding=
-left:1ex">





<div lang=3D"EN-US">
<div>
<p class=3D"MsoNormal"><span>Dear WG:<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span>This email begins a 2 week WG adoption call fo=
r
<a href=3D"https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanc=
ed-vpn/" target=3D"_blank">
https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/</a>=
 ending Wednesday 29<sup>th</sup> July 2020.
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span>Please speak up if you support or oppose adopt=
ing this document into the WG. Please also provide comments/reasons for tha=
t support (or lack thereof). Silence will not be considered consent.<u></u>=
<u></u></span></p>
<p class=3D"MsoNormal"><span><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span>Thanks!<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span>Jim, Joel &amp; Bruno<u></u><u></u></span></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
</div>

_______________________________________________<br>
spring mailing list<br>
<a href=3D"mailto:spring@ietf.org" target=3D"_blank">spring@ietf.org</a><br=
>
<a href=3D"https://www.ietf.org/mailman/listinfo/spring" rel=3D"noreferrer"=
 target=3D"_blank">https://www.ietf.org/mailman/listinfo/spring</a><br>
</blockquote></div><br clear=3D"all"><div><br></div>-- <br><div dir=3D"ltr"=
 class=3D"gmail_signature"><div dir=3D"ltr"><div>__________________________=
_________________</div><div>Luis M. Contreras<br></div><div><a href=3D"mail=
to:contreras.ietf@gmail.com" target=3D"_blank">contreras.ietf@gmail.com</a>=
=C2=A0</div><div><a href=3D"mailto:luismiguel.contrerasmurillo@telefonica.c=
om" target=3D"_blank">luismiguel.contrerasmurillo@telefonica.com</a></div><=
div>Global CTIO unit / Telefonica</div></div></div>

--000000000000d5612805ab6a1333--


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Subject: Re: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn
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Hi Jim,

 

I've been working on the Enhanced VPN framework in TEAS and I consider it a
good foundation for providing a more sophisticated VPN service that also
addresses the needs of network slicing.

 

So I'm pleased to see this work being examined in SPRING. It's been a while
since I read this draft, but I considered it then to be a good starting
point. I support adoption and commit to reviewing and contributing to the
document within the working group.

 

Thanks,

Adrian

 

From: spring <spring-bounces@ietf.org> On Behalf Of James Guichard
Sent: 15 July 2020 12:17
To: spring@ietf.org
Cc: spring-chairs@ietf.org
Subject: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn

 

Dear WG:

 

This email begins a 2 week WG adoption call for
https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/
ending Wednesday 29th July 2020. 

 

Please speak up if you support or oppose adopting this document into the WG.
Please also provide comments/reasons for that support (or lack thereof).
Silence will not be considered consent.

 

Thanks!

 

Jim, Joel & Bruno

 

 

 


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link=3D"#0563C1" vlink=3D"#954F72"><div class=3DWordSection1><p =
class=3DMsoNormal><span style=3D'mso-fareast-language:EN-US'>Hi =
Jim,<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:EN-US'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'mso-fareast-language:EN-US'>I&#8217;ve =
been working on the Enhanced VPN framework in TEAS and I consider it a =
good foundation for providing a more sophisticated VPN service that also =
addresses the needs of network slicing.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-fareast-language:EN-US'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'mso-fareast-language:EN-US'>So =
I&#8217;m pleased to see this work being examined in SPRING. It&#8217;s =
been a while since I read this draft, but I considered it then to be a =
good starting point. I support adoption and commit to reviewing and =
contributing to the document within the working =
group.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:EN-US'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-fareast-language:EN-US'>Thanks,<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-fareast-language:EN-US'>Adrian<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-fareast-language:EN-US'><o:p>&nbsp;</o:p></span></p><div><di=
v style=3D'border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm'><p class=3DMsoNormal><b><span =
lang=3DEN-US>From:</span></b><span lang=3DEN-US> spring =
&lt;spring-bounces@ietf.org&gt; <b>On Behalf Of </b>James =
Guichard<br><b>Sent:</b> 15 July 2020 12:17<br><b>To:</b> =
spring@ietf.org<br><b>Cc:</b> spring-chairs@ietf.org<br><b>Subject:</b> =
[spring] WG Adoption Call for =
draft-dong-spring-sr-for-enhanced-vpn<o:p></o:p></span></p></div></div><p=
 class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal><span =
lang=3DEN-US style=3D'mso-fareast-language:ZH-CN'>Dear =
WG:<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'mso-fareast-language:ZH-CN'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'mso-fareast-language:ZH-CN'>This email begins a 2 week WG =
adoption call for <a =
href=3D"https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhance=
d-vpn/">https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhance=
d-vpn/</a> ending Wednesday 29<sup>th</sup> July 2020. =
<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'mso-fareast-language:ZH-CN'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'mso-fareast-language:ZH-CN'>Please speak up if you support or =
oppose adopting this document into the WG. Please also provide =
comments/reasons for that support (or lack thereof). Silence will not be =
considered consent.<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US =
style=3D'mso-fareast-language:ZH-CN'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'mso-fareast-language:ZH-CN'>Thanks!<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'mso-fareast-language:ZH-CN'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'mso-fareast-language:ZH-CN'>Jim, Joel &amp; =
Bruno<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
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From: Stewart Bryant <stewart.bryant@gmail.com>
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Cc: Stewart Bryant <stewart.bryant@gmail.com>, "spring@ietf.org" <spring@ietf.org>, "spring-chairs@ietf.org" <spring-chairs@ietf.org>
To: James Guichard <james.n.guichard@futurewei.com>
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Subject: Re: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn
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As an author I think this is a useful text to publish in support of this =
work that continues in TEAS.

I hope that the WG is able to accept it as a SPRING WG draft.

Stewart


> On 15 Jul 2020, at 12:16, James Guichard =
<james.n.guichard@futurewei.com> wrote:
>=20
> Dear WG:
> =20
> This email begins a 2 week WG adoption call for =
https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/ =
<https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/> =
ending Wednesday 29th July 2020.
> =20
> Please speak up if you support or oppose adopting this document into =
the WG. Please also provide comments/reasons for that support (or lack =
thereof). Silence will not be considered consent.
> =20
> Thanks!
> =20
> Jim, Joel & Bruno
> =20
> =20
> =20
> _______________________________________________
> spring mailing list
> spring@ietf.org <mailto:spring@ietf.org>
> https://www.ietf.org/mailman/listinfo/spring =
<https://www.ietf.org/mailman/listinfo/spring>

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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html; =
charset=3Dus-ascii"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; line-break: after-white-space;" =
class=3D""><div>As an author I think this is a useful text to publish in =
support of this work that continues in TEAS.</div><div><br =
class=3D""></div><div>I hope that the WG is able to accept it as a =
SPRING WG draft.</div><div><br class=3D""></div><div>Stewart</div><div><br=
 class=3D""></div><div><br class=3D""><blockquote type=3D"cite" =
class=3D""><div class=3D"">On 15 Jul 2020, at 12:16, James Guichard =
&lt;<a href=3D"mailto:james.n.guichard@futurewei.com" =
class=3D"">james.n.guichard@futurewei.com</a>&gt; wrote:</div><br =
class=3D"Apple-interchange-newline"><div class=3D""><div =
class=3D"WordSection1" style=3D"page: WordSection1; caret-color: rgb(0, =
0, 0); font-family: Helvetica; font-size: 14px; font-style: normal; =
font-variant-caps: normal; font-weight: normal; letter-spacing: normal; =
text-align: start; text-indent: 0px; text-transform: none; white-space: =
normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; =
text-decoration: none;"><div style=3D"margin: 0in 0in 0.0001pt; =
font-size: 11pt; font-family: Calibri, sans-serif;" class=3D""><span =
class=3D"">Dear WG:<o:p class=3D""></o:p></span></div><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D""><span class=3D""><o:p =
class=3D"">&nbsp;</o:p></span></div><div style=3D"margin: 0in 0in =
0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><span class=3D"">This email begins a 2 week WG adoption call =
for<span class=3D"Apple-converted-space">&nbsp;</span><a =
href=3D"https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced=
-vpn/" style=3D"color: rgb(5, 99, 193); text-decoration: underline;" =
class=3D"">https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhan=
ced-vpn/</a><span class=3D"Apple-converted-space">&nbsp;</span>ending =
Wednesday 29<sup class=3D"">th</sup><span =
class=3D"Apple-converted-space">&nbsp;</span>July 2020.<o:p =
class=3D""></o:p></span></div><div style=3D"margin: 0in 0in 0.0001pt; =
font-size: 11pt; font-family: Calibri, sans-serif;" class=3D""><span =
class=3D""><o:p class=3D"">&nbsp;</o:p></span></div><div style=3D"margin: =
0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><span class=3D"">Please speak up if you support or oppose =
adopting this document into the WG. Please also provide comments/reasons =
for that support (or lack thereof). Silence will not be considered =
consent.<o:p class=3D""></o:p></span></div><div style=3D"margin: 0in 0in =
0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><span class=3D""><o:p class=3D"">&nbsp;</o:p></span></div><div =
style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;" class=3D""><span class=3D"">Thanks!<o:p =
class=3D""></o:p></span></div><div style=3D"margin: 0in 0in 0.0001pt; =
font-size: 11pt; font-family: Calibri, sans-serif;" class=3D""><span =
class=3D""><o:p class=3D"">&nbsp;</o:p></span></div><div style=3D"margin: =
0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" =
class=3D""><span class=3D"">Jim, Joel &amp; Bruno<o:p =
class=3D""></o:p></span></div><div style=3D"margin: 0in 0in 0.0001pt; =
font-size: 11pt; font-family: Calibri, sans-serif;" class=3D""><o:p =
class=3D"">&nbsp;</o:p></div><div style=3D"margin: 0in 0in 0.0001pt; =
font-size: 11pt; font-family: Calibri, sans-serif;" class=3D""><o:p =
class=3D"">&nbsp;</o:p></div><div style=3D"margin: 0in 0in 0.0001pt; =
font-size: 11pt; font-family: Calibri, sans-serif;" class=3D""><o:p =
class=3D"">&nbsp;</o:p></div></div><span style=3D"caret-color: rgb(0, 0, =
0); font-family: Helvetica; font-size: 14px; font-style: normal; =
font-variant-caps: normal; font-weight: normal; letter-spacing: normal; =
text-align: start; text-indent: 0px; text-transform: none; white-space: =
normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; =
text-decoration: none; float: none; display: inline !important;" =
class=3D"">_______________________________________________</span><br =
style=3D"caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: =
14px; font-style: normal; font-variant-caps: normal; font-weight: =
normal; letter-spacing: normal; text-align: start; text-indent: 0px; =
text-transform: none; white-space: normal; word-spacing: 0px; =
-webkit-text-stroke-width: 0px; text-decoration: none;" class=3D""><span =
style=3D"caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: =
14px; font-style: normal; font-variant-caps: normal; font-weight: =
normal; letter-spacing: normal; text-align: start; text-indent: 0px; =
text-transform: none; white-space: normal; word-spacing: 0px; =
-webkit-text-stroke-width: 0px; text-decoration: none; float: none; =
display: inline !important;" class=3D"">spring mailing list</span><br =
style=3D"caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: =
14px; font-style: normal; font-variant-caps: normal; font-weight: =
normal; letter-spacing: normal; text-align: start; text-indent: 0px; =
text-transform: none; white-space: normal; word-spacing: 0px; =
-webkit-text-stroke-width: 0px; text-decoration: none;" class=3D""><a =
href=3D"mailto:spring@ietf.org" style=3D"color: rgb(5, 99, 193); =
text-decoration: underline; font-family: Helvetica; font-size: 14px; =
font-style: normal; font-variant-caps: normal; font-weight: normal; =
letter-spacing: normal; orphans: auto; text-align: start; text-indent: =
0px; text-transform: none; white-space: normal; widows: auto; =
word-spacing: 0px; -webkit-text-size-adjust: auto; =
-webkit-text-stroke-width: 0px;" class=3D"">spring@ietf.org</a><br =
style=3D"caret-color: rgb(0, 0, 0); font-family: Helvetica; font-size: =
14px; font-style: normal; font-variant-caps: normal; font-weight: =
normal; letter-spacing: normal; text-align: start; text-indent: 0px; =
text-transform: none; white-space: normal; word-spacing: 0px; =
-webkit-text-stroke-width: 0px; text-decoration: none;" class=3D""><a =
href=3D"https://www.ietf.org/mailman/listinfo/spring" style=3D"color: =
rgb(5, 99, 193); text-decoration: underline; font-family: Helvetica; =
font-size: 14px; font-style: normal; font-variant-caps: normal; =
font-weight: normal; letter-spacing: normal; orphans: auto; text-align: =
start; text-indent: 0px; text-transform: none; white-space: normal; =
widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; =
-webkit-text-stroke-width: 0px;" =
class=3D"">https://www.ietf.org/mailman/listinfo/spring</a></div></blockqu=
ote></div><br class=3D""></body></html>=

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From: "Richard Vallee (rvallee)" <rvallee@cisco.com>
To: James Guichard <james.n.guichard@futurewei.com>, "spring@ietf.org" <spring@ietf.org>
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Thread-Topic: [spring] WG Adoption Call for draft-raza-spring-sr-policy-yang
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Subject: Re: [spring] WG Adoption Call for draft-raza-spring-sr-policy-yang
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From: "Richard Vallee (rvallee)" <rvallee@cisco.com>
To: James Guichard <james.n.guichard@futurewei.com>, "spring@ietf.org" <spring@ietf.org>
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Thread-Topic: [spring] WG Adoption Call for draft-raza-spring-srv6-yang
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Subject: Re: [spring] WG Adoption Call for draft-raza-spring-srv6-yang
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From: "Stone, Andrew (Nokia - CA/Ottawa)" <andrew.stone@nokia.com>
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From: Stewart Bryant <stewart.bryant@gmail.com>
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Date: Mon, 27 Jul 2020 13:48:41 +0100
Cc: Stewart Bryant <stewart.bryant@gmail.com>
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Subject: [spring] Meetecho abrupt termination of meeting
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Is it really necessary for Meetecho to abruptly, and without prior que, =
terminate at the end of the scheduled time?

This is not a behaviour in real meetings nor with =E2=80=9Cnormal=E2=80=9D=
 telemeeting services.

In SPRING the last speaker was cut off mid sentence.

I do not find this an acceptable tool for us to use if that is the =
behaviour we need to contend with.=20

Best regards

Stewart



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Hi Rakesh,



Thanks for the presentations at spring wg.



For clarification, I assume that the controller will be able to orchestrate=
 and collect the results of the STAMP probes with netconf-yang/yang push ba=
sed on draft-ietf-ippm-stamp-yang. Correct?

If yes, I assume that the STAMP extensions described in draft-gandhi-spring=
-stamp-srpm will be integrated into draft-ietf-ippm-stamp-yang? Is there a =
open source implementation, proof of code I could look at?



Best Wishes

Thomas

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<pre><span lang=3D"EN-US" style=3D"font-family:&quot;Trebuchet MS&quot;,san=
s-serif">Hi Rakesh,<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"font-family:&quot;Trebuchet MS&quot;,san=
s-serif"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"font-family:&quot;Trebuchet MS&quot;,san=
s-serif">Thanks for the presentations at spring wg.<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"font-family:&quot;Trebuchet MS&quot;,san=
s-serif"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"font-family:&quot;Trebuchet MS&quot;,san=
s-serif">For clarification, I assume that the controller will be able to or=
chestrate and collect the results of the STAMP probes with netconf-yang/yan=
g push based on draft-ietf-ippm-stamp-yang. Correct?<o:p></o:p></span></pre=
>
<pre><span lang=3D"EN-US" style=3D"font-family:&quot;Trebuchet MS&quot;,san=
s-serif">If yes, I assume that the STAMP extensions described in draft-gand=
hi-spring-stamp-srpm will be integrated into draft-ietf-ippm-stamp-yang? Is=
 there a open source implementation, proof of code I could look at?<o:p></o=
:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"font-family:&quot;Trebuchet MS&quot;,san=
s-serif"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"font-family:&quot;Trebuchet MS&quot;,san=
s-serif">Best Wishes<o:p></o:p></span></pre>
<pre><span lang=3D"EN-US" style=3D"font-family:&quot;Trebuchet MS&quot;,san=
s-serif">Thomas<o:p></o:p></span></pre>
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From nobody Mon Jul 27 06:02:37 2020
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From: Jay Daley <jay@ietf.org>
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Cc: IETF list <ietf@ietf.org>, SPRING WG List <spring@ietf.org>
To: Stewart Bryant <stewart.bryant@gmail.com>
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Subject: Re: [spring] Meetecho abrupt termination of meeting
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Stewart

This was unexpected and is being investigated.

Jay

> On 28/07/2020, at 12:48 AM, Stewart Bryant <stewart.bryant@gmail.com> =
wrote:
>=20
> Is it really necessary for Meetecho to abruptly, and without prior =
que, terminate at the end of the scheduled time?
>=20
> This is not a behaviour in real meetings nor with =E2=80=9Cnormal=E2=80=9D=
 telemeeting services.
>=20
> In SPRING the last speaker was cut off mid sentence.
>=20
> I do not find this an acceptable tool for us to use if that is the =
behaviour we need to contend with.=20
>=20
> Best regards
>=20
> Stewart
>=20
>=20

--=20
Jay Daley
IETF Executive Director
jay@ietf.org


--Apple-Mail=_1667FF5C-E1D4-42B0-B9CE-692CE6D181C3
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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html; =
charset=3Dutf-8"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; line-break: after-white-space;" =
class=3D"">Stewart<div class=3D""><br class=3D""></div><div =
class=3D"">This was unexpected and is being investigated.</div><div =
class=3D""><br class=3D""></div><div class=3D"">Jay<br class=3D""><div><br=
 class=3D""><blockquote type=3D"cite" class=3D""><div class=3D"">On =
28/07/2020, at 12:48 AM, Stewart Bryant &lt;<a =
href=3D"mailto:stewart.bryant@gmail.com" =
class=3D"">stewart.bryant@gmail.com</a>&gt; wrote:</div><br =
class=3D"Apple-interchange-newline"><div class=3D""><div class=3D"">Is =
it really necessary for Meetecho to abruptly, and without prior que, =
terminate at the end of the scheduled time?<br class=3D""><br =
class=3D"">This is not a behaviour in real meetings nor with =
=E2=80=9Cnormal=E2=80=9D telemeeting services.<br class=3D""><br =
class=3D"">In SPRING the last speaker was cut off mid sentence.<br =
class=3D""><br class=3D"">I do not find this an acceptable tool for us =
to use if that is the behaviour we need to contend with. <br =
class=3D""><br class=3D"">Best regards<br class=3D""><br =
class=3D"">Stewart<br class=3D""><br class=3D""><br =
class=3D""></div></div></blockquote></div><br class=3D""><div class=3D"">
<div dir=3D"auto" style=3D"caret-color: rgb(0, 0, 0); color: rgb(0, 0, =
0); letter-spacing: normal; text-align: start; text-indent: 0px; =
text-transform: none; white-space: normal; word-spacing: 0px; =
-webkit-text-stroke-width: 0px; text-decoration: none; word-wrap: =
break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" =
class=3D""><div dir=3D"auto" style=3D"caret-color: rgb(0, 0, 0); color: =
rgb(0, 0, 0); letter-spacing: normal; text-align: start; text-indent: =
0px; text-transform: none; white-space: normal; word-spacing: 0px; =
-webkit-text-stroke-width: 0px; text-decoration: none; word-wrap: =
break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" =
class=3D""><div dir=3D"auto" style=3D"caret-color: rgb(0, 0, 0); color: =
rgb(0, 0, 0); letter-spacing: normal; text-align: start; text-indent: =
0px; text-transform: none; white-space: normal; word-spacing: 0px; =
-webkit-text-stroke-width: 0px; text-decoration: none; word-wrap: =
break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" =
class=3D""><div>--&nbsp;<br class=3D"">Jay Daley</div><div>IETF =
Executive Director<br class=3D""><a href=3D"mailto:jay@ietf.org" =
class=3D"">jay@ietf.org</a><br class=3D""></div></div></div></div>
</div>
<br class=3D""></div></body></html>=

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From: Sonal Agarwal <sagarwal12@gmail.com>
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To: "Kamran Raza (skraza)" <skraza=40cisco.com@dmarc.ietf.org>
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Subject: Re: [spring] WG Adoption Call for draft-raza-spring-sr-policy-yang
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Hi WG,

I support adoption of this draft.

Regards,
Sonal.

> On Jul 14, 2020, at 11:38 PM, Kamran Raza (skraza) <skraza=3D40cisco.com@d=
marc.ietf.org> wrote:
>=20
> =EF=BB=BF
> I support the adoption of this draft.
> =20
> Rgds,
> -
> Kamran
> =20
> From: spring <spring-bounces@ietf.org> on behalf of James Guichard <james.=
n.guichard@futurewei.com>
> Date: Monday, July 13, 2020 at 11:39 AM
> To: "spring@ietf.org" <spring@ietf.org>
> Cc: "spring-chairs@ietf.org" <spring-chairs@ietf.org>
> Subject: [spring] WG Adoption Call for draft-raza-spring-sr-policy-yang
> =20
> Dear WG:
> =20
> This email begins a 2 week WG adoption call for https://datatracker.ietf.o=
rg/doc/draft-raza-spring-sr-policy-yang/ ending Monday 27th July 2020.
> =20
> Please speak up if you support or oppose adopting this document into the W=
G. Please also provide comments/reasons for that support (or lack thereof). S=
ilence will not be considered consent.
> =20
> Thanks!
> =20
> Jim, Joel & Bruno
> =20
> =20
> =20
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring

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<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charset=3D=
utf-8"></head><body dir=3D"auto"><div dir=3D"ltr">Hi WG,</div><div dir=3D"lt=
r"><br></div><div dir=3D"ltr">I support adoption of this draft.</div><div di=
r=3D"ltr"><br></div><div dir=3D"ltr">Regards,</div><div dir=3D"ltr">Sonal.</=
div><div dir=3D"ltr"><br><blockquote type=3D"cite">On Jul 14, 2020, at 11:38=
 PM, Kamran Raza (skraza) &lt;skraza=3D40cisco.com@dmarc.ietf.org&gt; wrote:=
<br><br></blockquote></div><blockquote type=3D"cite"><div dir=3D"ltr">=EF=BB=
=BF

<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dutf-8">
<meta name=3D"Generator" content=3D"Microsoft Word 15 (filtered medium)">
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<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:12.0pt;font-f=
amily:&quot;Arial&quot;,sans-serif">I support the adoption of this draft.<o:=
p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:12.0pt;font-f=
amily:&quot;Arial&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:12.0pt;font-f=
amily:&quot;Arial&quot;,sans-serif">Rgds,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:12.0pt;font-f=
amily:&quot;Arial&quot;,sans-serif">-<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:12.0pt;font-f=
amily:&quot;Arial&quot;,sans-serif">Kamran<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:12.0pt;font-f=
amily:&quot;Arial&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0=
cm 0cm">
<p class=3D"MsoNormal"><b><span style=3D"font-size:12.0pt;color:black">From:=
 </span></b><span style=3D"font-size:12.0pt;color:black">spring &lt;spring-b=
ounces@ietf.org&gt; on behalf of James Guichard &lt;james.n.guichard@futurew=
ei.com&gt;<br>
<b>Date: </b>Monday, July 13, 2020 at 11:39 AM<br>
<b>To: </b>"spring@ietf.org" &lt;spring@ietf.org&gt;<br>
<b>Cc: </b>"spring-chairs@ietf.org" &lt;spring-chairs@ietf.org&gt;<br>
<b>Subject: </b>[spring] WG Adoption Call for draft-raza-spring-sr-policy-ya=
ng<o:p></o:p></span></p>
</div>
<div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
<p class=3D"MsoNormal">Dear WG:<o:p></o:p></p>
<p class=3D"MsoNormal">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal">This email begins a 2 week WG adoption call for <a hr=
ef=3D"https://datatracker.ietf.org/doc/draft-raza-spring-sr-policy-yang/">
https://datatracker.ietf.org/doc/draft-raza-spring-sr-policy-yang/</a> endin=
g Monday 27<sup>th</sup> July 2020.
<o:p></o:p></p>
<p class=3D"MsoNormal">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal">Please speak up if you support or oppose adopting thi=
s document into the WG. Please also provide comments/reasons for that suppor=
t (or lack thereof). Silence will not be considered consent.<o:p></o:p></p>
<p class=3D"MsoNormal">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal">Thanks!<o:p></o:p></p>
<p class=3D"MsoNormal">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal">Jim, Joel &amp; Bruno<o:p></o:p></p>
<p class=3D"MsoNormal">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal">&nbsp;<o:p></o:p></p>
</div>


<span>_______________________________________________</span><br><span>spring=
 mailing list</span><br><span>spring@ietf.org</span><br><span>https://www.ie=
tf.org/mailman/listinfo/spring</span><br></div></blockquote></body></html>=

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From: "Rakesh Gandhi (rgandhi)" <rgandhi@cisco.com>
To: "Thomas.Graf@swisscom.com" <Thomas.Graf@swisscom.com>
CC: "spring@ietf.org" <spring@ietf.org>, "ippm@ietf.org" <ippm@ietf.org>
Thread-Topic: draft-gandhi-spring-sr-enhanced-plm / draft-gandhi-spring-stamp-srpm
Thread-Index: AdZkFDTPYHYiP3WTT6mrKkhZ43pf4wADJWCA
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From: "Kamran Raza (skraza)" <skraza@cisco.com>
To: Yingzhen Qu <yingzhen.qu@futurewei.com>, Dhruv Dhody <dhruv.ietf@gmail.com>, James Guichard <james.n.guichard@futurewei.com>
CC: "spring@ietf.org" <spring@ietf.org>, "spring-chairs@ietf.org" <spring-chairs@ietf.org>
Thread-Topic: [spring] WG Adoption Call for draft-raza-spring-srv6-yang
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Date: Mon, 27 Jul 2020 23:20:56 +0000
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Subject: Re: [spring] WG Adoption Call for draft-raza-spring-srv6-yang
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Subject: Re: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn
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<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charse=
t=3Dutf-8"><style>body { line-height: 1.5; }blockquote { margin-top: 0px; =
margin-bottom: 0px; margin-left: 0.5em; }p { margin-top: 0px; margin-botto=
m: 0px; }div.foxdiv20200728113418117329 { }body { font-size: 10.5pt; font-=
family: 'Microsoft YaHei UI'; color: rgb(0, 0, 0); line-height: 1.5; }</st=
yle></head><body>=0A<!--[if gte mso 9]><xml>=0A<o:shapedefaults v:ext=3D"e=
dit" spidmax=3D"1026" ></o:shapedefaults>=0A</xml><![endif]--><!--[if gte =
mso 9]><xml>=0A<o:shapelayout v:ext=3D"edit">=0A<o:idmap v:ext=3D"edit" da=
ta=3D"1" ></o:idmap>=0A</o:shapelayout></xml><![endif]-->=0A<div><span sty=
le=3D"font-family: Calibri, sans-serif; line-height: normal;">Dear WG:</sp=
an></div><div><span style=3D"font-family: Calibri, sans-serif; line-height=
: normal;"><br></span></div><div><span></span><span style=3D"font-family: =
Calibri, sans-serif; line-height: normal;">I support the adoption. The mec=
hanism in this document could be helpful to deploy services with guarantee=
d SLA in SR network.</span></div>=0A<div><br></div><div><span><p class=3D"=
MsoNormal" align=3D"left" style=3D"margin: 0cm 0cm 0.0001pt; font-size: 13=
px; font-family: =E7=AD=89=E7=BA=BF; line-height: 17.85pt;">Best regards,<=
/p><p class=3D"MsoNormal" align=3D"left" style=3D"margin: 0cm 0cm 0.0001pt=
; font-size: 13px; font-family: =E7=AD=89=E7=BA=BF; line-height: 17.85pt;"=
>Chenhao&nbsp;</p>=0A</span></div>=0A<blockquote style=3D"margin-top: 0px;=
 margin-bottom: 0px; margin-left: 0.5em;"><div>&nbsp;</div><div style=3D"b=
order:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm"><div =
style=3D"PADDING-RIGHT: 8px; PADDING-LEFT: 8px; FONT-SIZE: 12px;FONT-FAMIL=
Y:tahoma;COLOR:#000000; BACKGROUND: #efefef; PADDING-BOTTOM: 8px; PADDING-=
TOP: 8px"><div><b>From:</b>&nbsp;<a href=3D"mailto:james.n.guichard@future=
wei.com" style=3D"color: rgb(5, 99, 193); text-decoration: underline;">Jam=
es Guichard</a></div><div><b>Date:</b>&nbsp;2020-07-15&nbsp;19:16</div><di=
v><b>To:</b>&nbsp;<a href=3D"mailto:spring@ietf.org" style=3D"color: rgb(5=
, 99, 193); text-decoration: underline;">spring@ietf.org</a></div><div><b>=
CC:</b>&nbsp;<a href=3D"mailto:spring-chairs@ietf.org" style=3D"color: rgb=
(5, 99, 193); text-decoration: underline;">spring-chairs@ietf.org</a></div=
><div><b>Subject:</b>&nbsp;[spring] WG Adoption Call for draft-dong-spring=
-sr-for-enhanced-vpn</div></div></div><div><div class=3D"FoxDiv20200728113=
418117329">=0A<!--[if gte mso 9]><xml>=0A<o:shapedefaults v:ext=3D"edit" s=
pidmax=3D"1026" ></o:shapedefaults>=0A</xml><![endif]--><!--[if gte mso 9]=
><xml>=0A<o:shapelayout v:ext=3D"edit">=0A<o:idmap v:ext=3D"edit" data=3D"=
1" ></o:idmap>=0A</o:shapelayout></xml><![endif]-->=0A<div class=3D"WordSe=
ction1" style=3D"page: WordSection1;">=0A<p class=3D"MsoNormal" style=3D"m=
argin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif=
;"><span style=3D"mso-fareast-language:ZH-CN">Dear WG:<o:p></o:p></span></=
p>=0A<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-size: =
11pt; font-family: Calibri, sans-serif;"><span style=3D"mso-fareast-langua=
ge:ZH-CN"><o:p>&nbsp;</o:p></span></p>=0A<p class=3D"MsoNormal" style=3D"m=
argin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif=
;"><span style=3D"mso-fareast-language:ZH-CN">This email begins a 2 week W=
G adoption call for=0A<a href=3D"https://datatracker.ietf.org/doc/draft-do=
ng-spring-sr-for-enhanced-vpn/" style=3D"color: rgb(5, 99, 193); text-deco=
ration: underline;">=0Ahttps://datatracker.ietf.org/doc/draft-dong-spring-=
sr-for-enhanced-vpn/</a> ending Wednesday 29<sup>th</sup> July 2020.=0A<o:=
p></o:p></span></p>=0A<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0.00=
01pt; font-size: 11pt; font-family: Calibri, sans-serif;"><span style=3D"m=
so-fareast-language:ZH-CN"><o:p>&nbsp;</o:p></span></p>=0A<p class=3D"MsoN=
ormal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Ca=
libri, sans-serif;"><span style=3D"mso-fareast-language:ZH-CN">Please spea=
k up if you support or oppose adopting this document into the WG. Please a=
lso provide comments/reasons for that support (or lack thereof). Silence w=
ill not be considered consent.<o:p></o:p></span></p>=0A<p class=3D"MsoNorm=
al" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calib=
ri, sans-serif;"><span style=3D"mso-fareast-language:ZH-CN"><o:p>&nbsp;</o=
:p></span></p>=0A<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0.0001pt;=
 font-size: 11pt; font-family: Calibri, sans-serif;"><span style=3D"mso-fa=
reast-language:ZH-CN">Thanks!<o:p></o:p></span></p>=0A<p class=3D"MsoNorma=
l" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibr=
i, sans-serif;"><span style=3D"mso-fareast-language:ZH-CN"><o:p>&nbsp;</o:=
p></span></p>=0A<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0.0001pt; =
font-size: 11pt; font-family: Calibri, sans-serif;"><span style=3D"mso-far=
east-language:ZH-CN">Jim, Joel &amp; Bruno<o:p></o:p></span></p>=0A<p clas=
s=3D"MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-f=
amily: Calibri, sans-serif;"><o:p>&nbsp;</o:p></p>=0A<p class=3D"MsoNormal=
" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri=
, sans-serif;"><o:p>&nbsp;</o:p></p>=0A<p class=3D"MsoNormal" style=3D"mar=
gin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;"=
><o:p>&nbsp;</o:p></p>=0A</div>=0A</div></div></blockquote>=0A</body></htm=
l>
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<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charse=
t=3DISO-8859-1"><style>body { line-height: 1.5; }blockquote { margin-top: =
0px; margin-bottom: 0px; margin-left: 0.5em; }p { margin-top: 0px; margin-=
bottom: 0px; }div.FoxDiv20200728121036585639 { }body { font-size: 10.5pt; =
font-family: 'Microsoft YaHei UI'; color: rgb(0, 0, 0); line-height: 1.5; =
}</style></head><body>=0A<!--[if gte mso 9]><xml>=0A<o:shapedefaults v:ext=
=3D"edit" spidmax=3D"1026" ></o:shapedefaults>=0A</xml><![endif]--><!--[if=
 gte mso 9]><xml>=0A<o:shapelayout v:ext=3D"edit">=0A<o:idmap v:ext=3D"edi=
t" data=3D"1" ></o:idmap>=0A</o:shapelayout></xml><![endif]-->=0A<div><fon=
t face=3D"Calibri, sans-serif"><span></span>Hi WG,</font></div><div><br></=
div><div><span style=3D"font-family: Calibri, sans-serif; line-height: nor=
mal; text-align: justify; background-color: transparent;">I support the ad=
option. It is a useful enhancement to SR, which can help to provide networ=
k SLA assurance for various services.</span></div><div><span style=3D"font=
-family: Calibri, sans-serif; line-height: normal; text-align: justify; ba=
ckground-color: transparent;"><br></span></div><div><span style=3D"font-fa=
mily: Calibri, sans-serif; line-height: normal; text-align: justify; backg=
round-color: transparent;">Best regards,</span></div><div><span style=3D"f=
ont-family: Calibri, sans-serif; line-height: normal; text-align: justify;=
 background-color: transparent;"><br></span></div><div><span style=3D"font=
-family: Calibri, sans-serif; line-height: normal; text-align: justify; ba=
ckground-color: transparent;">Cong Li</span></div>=0A<div><br></div><hr st=
yle=3D"width: 210px; height: 1px; display: none;" color=3D"#b5c4df" size=
=3D"1" align=3D"left">=0A<div><span></span></div>=0A<blockquote style=3D"m=
argin-Top: 0px; margin-Bottom: 0px; margin-Left: 0.5em; margin-Right: inhe=
rit"><div>&nbsp;</div><div style=3D"border:none;border-top:solid #B5C4DF 1=
.0pt;padding:3.0pt 0cm 0cm 0cm"><div style=3D"PADDING-RIGHT: 8px; PADDING-=
LEFT: 8px; FONT-SIZE: 12px;FONT-FAMILY:tahoma;COLOR:#000000; BACKGROUND: #=
efefef; PADDING-BOTTOM: 8px; PADDING-TOP: 8px"><div><b>From:</b>&nbsp;<a h=
ref=3D"mailto:james.n.guichard@futurewei.com" style=3D"color: rgb(5, 99, 1=
93); text-decoration: underline;">James Guichard</a></div><div><b>Date:</b=
>&nbsp;2020-07-15&nbsp;19:16</div><div><b>To:</b>&nbsp;<a href=3D"mailto:s=
pring@ietf.org" style=3D"color: rgb(5, 99, 193); text-decoration: underlin=
e;">spring@ietf.org</a></div><div><b>CC:</b>&nbsp;<a href=3D"mailto:spring=
-chairs@ietf.org" style=3D"color: rgb(5, 99, 193); text-decoration: underl=
ine;">spring-chairs@ietf.org</a></div><div><b>Subject:</b>&nbsp;[spring] W=
G Adoption Call for draft-dong-spring-sr-for-enhanced-vpn</div></div></div=
><div><div class=3D"FoxDiv20200728121036585639">=0A<!--[if gte mso 9]><xml=
>=0A<o:shapedefaults v:ext=3D"edit" spidmax=3D"1026" ></o:shapedefaults>=
=0A</xml><![endif]--><!--[if gte mso 9]><xml>=0A<o:shapelayout v:ext=3D"ed=
it">=0A<o:idmap v:ext=3D"edit" data=3D"1" ></o:idmap>=0A</o:shapelayout></=
xml><![endif]-->=0A<div class=3D"WordSection1" style=3D"page: WordSection1=
;">=0A<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-size:=
 11pt; font-family: Calibri, sans-serif;"><span style=3D"mso-fareast-langu=
age:ZH-CN">Dear WG:<o:p></o:p></span></p>=0A<p class=3D"MsoNormal" style=
=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-=
serif;"><span style=3D"mso-fareast-language:ZH-CN"><o:p>&nbsp;</o:p></span=
></p>=0A<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-siz=
e: 11pt; font-family: Calibri, sans-serif;"><span style=3D"mso-fareast-lan=
guage:ZH-CN">This email begins a 2 week WG adoption call for=0A<a href=3D"=
https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/" s=
tyle=3D"color: rgb(5, 99, 193); text-decoration: underline;">=0Ahttps://da=
tatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/</a> ending W=
ednesday 29<sup>th</sup> July 2020.=0A<o:p></o:p></span></p>=0A<p class=3D=
"MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-famil=
y: Calibri, sans-serif;"><span style=3D"mso-fareast-language:ZH-CN"><o:p>&=
nbsp;</o:p></span></p>=0A<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0=
.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;"><span style=
=3D"mso-fareast-language:ZH-CN">Please speak up if you support or oppose a=
dopting this document into the WG. Please also provide comments/reasons fo=
r that support (or lack thereof). Silence will not be considered consent.<=
o:p></o:p></span></p>=0A<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0.=
0001pt; font-size: 11pt; font-family: Calibri, sans-serif;"><span style=3D=
"mso-fareast-language:ZH-CN"><o:p>&nbsp;</o:p></span></p>=0A<p class=3D"Ms=
oNormal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: =
Calibri, sans-serif;"><span style=3D"mso-fareast-language:ZH-CN">Thanks!<o=
:p></o:p></span></p>=0A<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0.0=
001pt; font-size: 11pt; font-family: Calibri, sans-serif;"><span style=3D"=
mso-fareast-language:ZH-CN"><o:p>&nbsp;</o:p></span></p>=0A<p class=3D"Mso=
Normal" style=3D"margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: C=
alibri, sans-serif;"><span style=3D"mso-fareast-language:ZH-CN">Jim, Joel =
&amp; Bruno<o:p></o:p></span></p>=0A<p class=3D"MsoNormal" style=3D"margin=
: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;"><o=
:p>&nbsp;</o:p></p>=0A<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0.00=
01pt; font-size: 11pt; font-family: Calibri, sans-serif;"><o:p>&nbsp;</o:p=
></p>=0A<p class=3D"MsoNormal" style=3D"margin: 0in 0in 0.0001pt; font-siz=
e: 11pt; font-family: Calibri, sans-serif;"><o:p>&nbsp;</o:p></p>=0A</div>=
=0A</div></div></blockquote>=0A</body></html>
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From: James Guichard <james.n.guichard@futurewei.com>
To: "spring@ietf.org" <spring@ietf.org>
CC: "spring-chairs@ietf.org" <spring-chairs@ietf.org>
Thread-Topic: WG Adoption Call for draft-raza-spring-sr-policy-yang 
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Date: Tue, 28 Jul 2020 10:33:34 +0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/8q0IW7o9cxWIVKqz-kmSeMjVkY0>
Subject: Re: [spring] WG Adoption Call for draft-raza-spring-sr-policy-yang
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Dear WG:

The 2-week adoption call for draft-raza-spring-sr-policy-yang has now close=
d. There is strong support for adoption of this document into the WG and th=
erefore authors please publish a new version as draft-ietf-spring-sr-policy=
-yang-00. The chairs note that several comments were received during the ad=
option call and we expect to see those resolved as part of the WG process; =
authors please work with the people that commented to resolve any open issu=
es and/or comments.

Authors, please indicate on the mailing list whether you are aware of any u=
ndisclosed relevant IPR.

Thanks!

Jim, Joel & Bruno


From: James Guichard
Sent: Monday, July 13, 2020 11:38 AM
To: spring@ietf.org
Cc: spring-chairs@ietf.org
Subject: WG Adoption Call for draft-raza-spring-sr-policy-yang

Dear WG:

This email begins a 2 week WG adoption call for https://datatracker.ietf.or=
g/doc/draft-raza-spring-sr-policy-yang/ ending Monday 27th July 2020.

Please speak up if you support or oppose adopting this document into the WG=
. Please also provide comments/reasons for that support (or lack thereof). =
Silence will not be considered consent.

Thanks!

Jim, Joel & Bruno




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<p class=3D"MsoNormal">Dear WG:<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">The 2-week adoption call for draft-raza-spring-sr-po=
licy-yang has now closed. There is strong support for adoption of this docu=
ment into the WG and therefore authors please publish a new version as draf=
t-ietf-spring-sr-policy-yang-00. The
 chairs note that several comments were received during the adoption call a=
nd we expect to see those resolved as part of the WG process; authors pleas=
e work with the people that commented to resolve any open issues and/or com=
ments.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Authors, please indicate on the mailing list whether=
 you are aware of any undisclosed relevant IPR.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Thanks!<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Jim, Joel &amp; Bruno <o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
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<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal"><b>From:</b> James Guichard <br>
<b>Sent:</b> Monday, July 13, 2020 11:38 AM<br>
<b>To:</b> spring@ietf.org<br>
<b>Cc:</b> spring-chairs@ietf.org<br>
<b>Subject:</b> WG Adoption Call for draft-raza-spring-sr-policy-yang <o:p>=
</o:p></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Dear WG:<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">This email begins a 2 week WG adoption call for <a h=
ref=3D"https://datatracker.ietf.org/doc/draft-raza-spring-sr-policy-yang/">
https://datatracker.ietf.org/doc/draft-raza-spring-sr-policy-yang/</a> endi=
ng Monday 27<sup>th</sup> July 2020.
<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Please speak up if you support or oppose adopting th=
is document into the WG. Please also provide comments/reasons for that supp=
ort (or lack thereof). Silence will not be considered consent.<o:p></o:p></=
p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Thanks!<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Jim, Joel &amp; Bruno<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
</body>
</html>

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From: James Guichard <james.n.guichard@futurewei.com>
To: "spring@ietf.org" <spring@ietf.org>
CC: "spring-chairs@ietf.org" <spring-chairs@ietf.org>
Thread-Topic: WG Adoption Call for draft-raza-spring-srv6-yang
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Subject: Re: [spring] WG Adoption Call for draft-raza-spring-srv6-yang
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Dear WG:

The 2-week adoption call for draft-raza-spring-srv6-yang has now closed. Th=
ere is strong support for adoption of this document into the WG and therefo=
re authors please publish a new version as draft-ietf-spring-srv6-yang-00. =
The chairs note that several comments were received during the adoption cal=
l to help improve the structure and quality of the document; authors please=
 work with the people that provided these comments to incorporate them as a=
ppropriate into the document.

Authors, please indicate on the mailing list whether you are aware of any u=
ndisclosed relevant IPR.

Thanks!

Jim, Joel & Bruno





From: James Guichard
Sent: Monday, July 13, 2020 5:52 PM
To: spring@ietf.org
Cc: spring-chairs@ietf.org
Subject: WG Adoption Call for draft-raza-spring-srv6-yang

Dear WG:

This email begins a 2 week WG adoption call for https://datatracker.ietf.or=
g/doc/draft-raza-spring-srv6-yang/ ending Monday 27th July 2020.

Please speak up if you support or oppose adopting this document into the WG=
. Please also provide comments/reasons for that support (or lack thereof). =
Silence will not be considered consent.

Thanks!

Jim, Joel & Bruno






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<p class=3D"MsoNormal">Dear WG:<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">The 2-week adoption call for draft-raza-spring-srv6-=
yang has now closed. There is strong support for adoption of this document =
into the WG and therefore authors please publish a new version as draft-iet=
f-spring-srv6-yang-00. The chairs
 note that several comments were received during the adoption call to help =
improve the structure and quality of the document; authors please work with=
 the people that provided these comments to incorporate them as appropriate=
 into the document.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Authors, please indicate on the mailing list whether=
 you are aware of any undisclosed relevant IPR.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Thanks!<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Jim, Joel &amp; Bruno <o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<div>
<p class=3D"MsoNormal"><b><span style=3D"font-size:12.0pt"><o:p>&nbsp;</o:p=
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<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal"><b>From:</b> James Guichard <br>
<b>Sent:</b> Monday, July 13, 2020 5:52 PM<br>
<b>To:</b> spring@ietf.org<br>
<b>Cc:</b> spring-chairs@ietf.org<br>
<b>Subject:</b> WG Adoption Call for draft-raza-spring-srv6-yang<o:p></o:p>=
</p>
</div>
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<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Dear WG:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">This email begins a 2 week WG a=
doption call for
</span><a href=3D"https://datatracker.ietf.org/doc/draft-raza-spring-srv6-y=
ang/"><span lang=3D"EN-CA">https://datatracker.ietf.org/doc/draft-raza-spri=
ng-srv6-yang/</span></a><span lang=3D"EN-CA"> ending Monday 27<sup>th</sup>=
 July 2020.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Please speak up if you support =
or oppose adopting this document into the WG. Please also provide comments/=
reasons for that support (or lack thereof). Silence will not be considered =
consent.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Thanks!<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-CA">Jim, Joel &amp; Bruno<o:p></o:p=
></span></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
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From: Greg Mirsky <gregimirsky@gmail.com>
Date: Tue, 28 Jul 2020 08:47:46 -0700
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To: James Guichard <james.n.guichard@futurewei.com>
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Subject: Re: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn
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Dear Authors,
thank you for that well-written document. It was a pleasure to read. I have
a number of questions and much appreciate it if you can clarify them for me:

   - how you envision mapping resources to a topological SID, e.g. adj-SID?
   Would it be 1:1, i.e., a new SID for each resource that characterizes a
   link in a virtual network?
   - how granular association of a resource with a SID could practically
   be? For example, BW may be de-composed into, per. RFC 6003, CIR, CBS, EIR,
   and EBS. Do you expect a transient SR node to do policing and/or shaping
   according to such resource information?
   - I agree, that FlexE is one of Layer 2 technologies to provide
   predictable, in regard to performance, transport. What benefits of using
   resource information you see for FlexE? Would an intermediate node manage
   the FlexE calendar?

Regards,
Greg

On Wed, Jul 15, 2020 at 4:17 AM James Guichard <
james.n.guichard@futurewei.com> wrote:

> Dear WG:
>
>
>
> This email begins a 2 week WG adoption call for
> https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/
> ending Wednesday 29th July 2020.
>
>
>
> Please speak up if you support or oppose adopting this document into the
> WG. Please also provide comments/reasons for that support (or lack
> thereof). Silence will not be considered consent.
>
>
>
> Thanks!
>
>
>
> Jim, Joel & Bruno
>
>
>
>
>
>
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
>

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<div dir=3D"ltr">Dear Authors,<div>thank you for that=C2=A0well-written doc=
ument. It was a pleasure to read. I have a number of questions and much app=
reciate it if you can clarify them for me:</div><div><ul><li>how you envisi=
on mapping resources to a topological SID, e.g. adj-SID? Would it be 1:1, i=
.e., a new SID for each resource that characterizes a link in a virtual net=
work?</li><li>how granular association of a resource with a SID could pract=
ically be? For example, BW may be de-composed into, per. RFC 6003, CIR, CBS=
, EIR,=C2=A0 and EBS. Do you expect a transient SR node to do policing and/=
or shaping according to such resource information?</li><li>I agree, that Fl=
exE is one of Layer 2 technologies to provide predictable, in regard to per=
formance, transport. What benefits of using resource information you see fo=
r FlexE? Would an intermediate node manage the FlexE calendar?</li></ul><di=
v>Regards,</div></div><div>Greg</div></div><br><div class=3D"gmail_quote"><=
div dir=3D"ltr" class=3D"gmail_attr">On Wed, Jul 15, 2020 at 4:17 AM James =
Guichard &lt;<a href=3D"mailto:james.n.guichard@futurewei.com">james.n.guic=
hard@futurewei.com</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote=
" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);=
padding-left:1ex">





<div lang=3D"EN-US">
<div>
<p class=3D"MsoNormal"><span>Dear WG:<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span>This email begins a 2 week WG adoption call fo=
r
<a href=3D"https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanc=
ed-vpn/" target=3D"_blank">
https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/</a>=
 ending Wednesday 29<sup>th</sup> July 2020.
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span>Please speak up if you support or oppose adopt=
ing this document into the WG. Please also provide comments/reasons for tha=
t support (or lack thereof). Silence will not be considered consent.<u></u>=
<u></u></span></p>
<p class=3D"MsoNormal"><span><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span>Thanks!<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span>Jim, Joel &amp; Bruno<u></u><u></u></span></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
</div>

_______________________________________________<br>
spring mailing list<br>
<a href=3D"mailto:spring@ietf.org" target=3D"_blank">spring@ietf.org</a><br=
>
<a href=3D"https://www.ietf.org/mailman/listinfo/spring" rel=3D"noreferrer"=
 target=3D"_blank">https://www.ietf.org/mailman/listinfo/spring</a><br>
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From: Shunsuke Homma <shunsuke.homma.ietf@gmail.com>
Date: Wed, 29 Jul 2020 01:06:05 +0900
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To: Greg Mirsky <gregimirsky@gmail.com>
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Subject: Re: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn
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Hi WG,

I reviewed the draft, and support the adoption. The proposal may be a
useful improvement of SR architecture, and it will be valuable to consider
it.

The follows are my comments:
- Regarding scalability, it will depend on how to design configurations,
and I think that there is little difference between existing technologies
and the proposal.  The number of virtual networks which can be built will
strongly depend on the spec/ability of the underlay network.  For example,
the number of available QoS classes is limited by the number of queues
which routers have. Or the size of a forwarding table depends on
performance of TCAM. I think a critical point on scalability is underlay
network spec/ability rather than the nature of techniques/protocols.
- Simplifying data plane structure and its management by unifying several
forwarding mechanisms to SID may be one of advantages of the proposal.
- This extension may be a fundamental improvement, and it may not be
necessary to be tied to usage for enhanced VPN solution.

Regards,

Shunsuke

On Wed, Jul 29, 2020 at 12:48 AM Greg Mirsky <gregimirsky@gmail.com> wrote:

> Dear Authors,
> thank you for that well-written document. It was a pleasure to read. I
> have a number of questions and much appreciate it if you can clarify them
> for me:
>
>    - how you envision mapping resources to a topological SID, e.g.
>    adj-SID? Would it be 1:1, i..e., a new SID for each resource that
>    characterizes a link in a virtual network?
>    - how granular association of a resource with a SID could practically
>    be? For example, BW may be de-composed into, per. RFC 6003, CIR, CBS, EIR,
>    and EBS. Do you expect a transient SR node to do policing and/or shaping
>    according to such resource information?
>    - I agree, that FlexE is one of Layer 2 technologies to provide
>    predictable, in regard to performance, transport. What benefits of using
>    resource information you see for FlexE? Would an intermediate node manage
>    the FlexE calendar?
>
> Regards,
> Greg
>
> On Wed, Jul 15, 2020 at 4:17 AM James Guichard <
> james.n.guichard@futurewei.com> wrote:
>
>> Dear WG:
>>
>>
>>
>> This email begins a 2 week WG adoption call for
>> https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/
>> ending Wednesday 29th July 2020.
>>
>>
>>
>> Please speak up if you support or oppose adopting this document into the
>> WG. Please also provide comments/reasons for that support (or lack
>> thereof). Silence will not be considered consent.
>>
>>
>>
>> Thanks!
>>
>>
>>
>> Jim, Joel & Bruno
>>
>>
>>
>>
>>
>>
>> _______________________________________________
>> spring mailing list
>> spring@ietf.org
>> https://www.ietf.org/mailman/listinfo/spring
>>
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
>

--000000000000bcd74e05ab829edf
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<div dir=3D"ltr">Hi WG, <br><br>I reviewed the draft, and support the adopt=
ion. The proposal may be a useful improvement of SR architecture, and it wi=
ll be valuable to consider it.<br><br>The follows are my comments:<br>- Reg=
arding scalability, it will depend on how to design configurations, and I t=
hink that there is little difference between existing technologies and the =
proposal.=C2=A0 The number of virtual networks which can be built will stro=
ngly depend on the spec/ability of the underlay network.=C2=A0 For example,=
 the number of available QoS classes is limited by the number of queues whi=
ch routers have. Or the size of a forwarding table depends on performance o=
f TCAM. I think a critical point on scalability is underlay network spec/ab=
ility rather than the nature of techniques/protocols.<br>- Simplifying data=
 plane structure and its management by unifying several forwarding mechanis=
ms to SID may be one of advantages of the proposal.<br>- This extension may=
 be a fundamental improvement, and it may not be necessary to be tied to us=
age for enhanced VPN solution.<br><div><br></div><div>Regards,</div><div><b=
r></div><div>Shunsuke</div></div><br><div class=3D"gmail_quote"><div dir=3D=
"ltr" class=3D"gmail_attr">On Wed, Jul 29, 2020 at 12:48 AM Greg Mirsky &lt=
;<a href=3D"mailto:gregimirsky@gmail.com">gregimirsky@gmail.com</a>&gt; wro=
te:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px =
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir=3D"=
ltr">Dear Authors,<div>thank you for that=C2=A0well-written document. It wa=
s a pleasure to read. I have a number of questions and much appreciate it i=
f you can clarify them for me:</div><div><ul><li>how you envision mapping r=
esources to a topological SID, e.g. adj-SID? Would it be 1:1, i..e., a new =
SID for each resource that characterizes a link in a virtual network?</li><=
li>how granular association of a resource with a SID could practically be? =
For example, BW may be de-composed into, per. RFC 6003, CIR, CBS, EIR,=C2=
=A0 and EBS. Do you expect a transient SR node to do policing and/or shapin=
g according to such resource information?</li><li>I agree, that FlexE is on=
e of Layer 2 technologies to provide predictable, in regard to performance,=
 transport. What benefits of using resource information you see for FlexE? =
Would an intermediate node manage the FlexE calendar?</li></ul><div>Regards=
,</div></div><div>Greg</div></div><br><div class=3D"gmail_quote"><div dir=
=3D"ltr" class=3D"gmail_attr">On Wed, Jul 15, 2020 at 4:17 AM James Guichar=
d &lt;<a href=3D"mailto:james.n.guichard@futurewei.com" target=3D"_blank">j=
ames.n.guichard@futurewei.com</a>&gt; wrote:<br></div><blockquote class=3D"=
gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(20=
4,204,204);padding-left:1ex">





<div lang=3D"EN-US">
<div>
<p class=3D"MsoNormal"><span>Dear WG:<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span>This email begins a 2 week WG adoption call fo=
r
<a href=3D"https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanc=
ed-vpn/" target=3D"_blank">
https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/</a>=
 ending Wednesday 29<sup>th</sup> July 2020.
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span>Please speak up if you support or oppose adopt=
ing this document into the WG. Please also provide comments/reasons for tha=
t support (or lack thereof). Silence will not be considered consent.<u></u>=
<u></u></span></p>
<p class=3D"MsoNormal"><span><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span>Thanks!<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span>Jim, Joel &amp; Bruno<u></u><u></u></span></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
</div>

_______________________________________________<br>
spring mailing list<br>
<a href=3D"mailto:spring@ietf.org" target=3D"_blank">spring@ietf.org</a><br=
>
<a href=3D"https://www.ietf.org/mailman/listinfo/spring" rel=3D"noreferrer"=
 target=3D"_blank">https://www.ietf.org/mailman/listinfo/spring</a><br>
</blockquote></div>
_______________________________________________<br>
spring mailing list<br>
<a href=3D"mailto:spring@ietf.org" target=3D"_blank">spring@ietf.org</a><br=
>
<a href=3D"https://www.ietf.org/mailman/listinfo/spring" rel=3D"noreferrer"=
 target=3D"_blank">https://www.ietf.org/mailman/listinfo/spring</a><br>
</blockquote></div>

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Joel Halpern has requested publication of draft-ietf-spring-sr-yang-18 as Proposed Standard on behalf of the SPRING working group.

Please verify the document's state at https://datatracker.ietf.org/doc/draft-ietf-spring-sr-yang/



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--=====_002_next=====--

--=====_001_next=====--


From nobody Wed Jul 29 03:05:20 2020
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To: James Guichard <james.n.guichard@futurewei.com>, "spring@ietf.org" <spring@ietf.org>
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From: Loa Andersson <loa@pi.nu>
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Subject: Re: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn
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Working Grpup,

I reviewed the draft and find it a very good start for a working group
topic that is well inside the scope of what the working group needs to
be working on.

/Loa

On 15/07/2020 19:16, James Guichard wrote:
> Dear WG:
> 
> This email begins a 2 week WG adoption call for 
> https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/ 
> ending Wednesday 29^th July 2020.
> 
> Please speak up if you support or oppose adopting this document into the 
> WG. Please also provide comments/reasons for that support (or lack 
> thereof). Silence will not be considered consent.
> 
> Thanks!
> 
> Jim, Joel & Bruno
> 
> 
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
> 

-- 

Loa Andersson                        email: loa@pi.nu
Senior MPLS Expert                          loa.pi.nu@gmail.com
Bronze Dragon Consulting             phone: +46 739 81 21 64


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From: Greg Mirsky <gregimirsky@gmail.com>
Date: Wed, 29 Jul 2020 05:57:57 -0700
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To: James Guichard <james.n.guichard@futurewei.com>
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Subject: Re: [spring] WG Adoption Call for draft-dong-spring-sr-for-enhanced-vpn
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--0000000000009110c005ab941bd6
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Dear WG Chairs, Authors,
I think I need to clarify my view regarding the WG adoption of this draft.
I share concerns expressed by Tarek. Also, it is not clear the role of
resource-SID in the case of FlexE underlay. And it does appear that an SR
node will maintain state per resource-SID it is provisioned by the
controller. That, in my opinion, breaks the SR paradigm of no per-flow
state at intermediate SR nodes. I believe that any solution to the problem
of SR-TE should be weighted against the work on Transport Slicing at the
TEAS WG.

Regards,
Greg

On Tue, Jul 28, 2020 at 8:47 AM Greg Mirsky <gregimirsky@gmail.com> wrote:

> Dear Authors,
> thank you for that well-written document. It was a pleasure to read. I
> have a number of questions and much appreciate it if you can clarify them
> for me:
>
>    - how you envision mapping resources to a topological SID, e.g.
>    adj-SID? Would it be 1:1, i.e., a new SID for each resource that
>    characterizes a link in a virtual network?
>    - how granular association of a resource with a SID could practically
>    be? For example, BW may be de-composed into, per. RFC 6003, CIR, CBS, EIR,
>    and EBS. Do you expect a transient SR node to do policing and/or shaping
>    according to such resource information?
>    - I agree, that FlexE is one of Layer 2 technologies to provide
>    predictable, in regard to performance, transport. What benefits of using
>    resource information you see for FlexE? Would an intermediate node manage
>    the FlexE calendar?
>
> Regards,
> Greg
>
> On Wed, Jul 15, 2020 at 4:17 AM James Guichard <
> james.n.guichard@futurewei.com> wrote:
>
>> Dear WG:
>>
>>
>>
>> This email begins a 2 week WG adoption call for
>> https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/
>> ending Wednesday 29th July 2020.
>>
>>
>>
>> Please speak up if you support or oppose adopting this document into the
>> WG. Please also provide comments/reasons for that support (or lack
>> thereof). Silence will not be considered consent.
>>
>>
>>
>> Thanks!
>>
>>
>>
>> Jim, Joel & Bruno
>>
>>
>>
>>
>>
>>
>> _______________________________________________
>> spring mailing list
>> spring@ietf.org
>> https://www.ietf.org/mailman/listinfo/spring
>>
>

--0000000000009110c005ab941bd6
Content-Type: text/html; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr">Dear WG Chairs, Authors,<div>I think I need to clarify my =
view regarding the WG adoption of this draft. I share concerns expressed by=
 Tarek. Also, it is not clear the role of resource-SID in the case of FlexE=
 underlay. And it does appear that an SR node will maintain state per resou=
rce-SID it is provisioned by the controller. That, in my=C2=A0opinion, brea=
ks the SR paradigm of no per-flow state at intermediate SR nodes. I believe=
 that any solution to the problem of SR-TE should be weighted against the w=
ork on Transport Slicing at the TEAS WG.</div><div><br></div><div>Regards,<=
/div><div>Greg</div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" c=
lass=3D"gmail_attr">On Tue, Jul 28, 2020 at 8:47 AM Greg Mirsky &lt;<a href=
=3D"mailto:gregimirsky@gmail.com">gregimirsky@gmail.com</a>&gt; wrote:<br><=
/div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;bo=
rder-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir=3D"ltr">Dea=
r Authors,<div>thank you for that=C2=A0well-written document. It was a plea=
sure to read. I have a number of questions and much appreciate it if you ca=
n clarify them for me:</div><div><ul><li>how you envision mapping resources=
 to a topological SID, e.g. adj-SID? Would it be 1:1, i.e., a new SID for e=
ach resource that characterizes a link in a virtual network?</li><li>how gr=
anular association of a resource with a SID could practically be? For examp=
le, BW may be de-composed into, per. RFC 6003, CIR, CBS, EIR,=C2=A0 and EBS=
. Do you expect a transient SR node to do policing and/or shaping according=
 to such resource information?</li><li>I agree, that FlexE is one of Layer =
2 technologies to provide predictable, in regard to performance, transport.=
 What benefits of using resource information you see for FlexE? Would an in=
termediate node manage the FlexE calendar?</li></ul><div>Regards,</div></di=
v><div>Greg</div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" clas=
s=3D"gmail_attr">On Wed, Jul 15, 2020 at 4:17 AM James Guichard &lt;<a href=
=3D"mailto:james.n.guichard@futurewei.com" target=3D"_blank">james.n.guicha=
rd@futurewei.com</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" =
style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);pa=
dding-left:1ex">





<div lang=3D"EN-US">
<div>
<p class=3D"MsoNormal"><span>Dear WG:<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span>This email begins a 2 week WG adoption call fo=
r
<a href=3D"https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanc=
ed-vpn/" target=3D"_blank">
https://datatracker.ietf.org/doc/draft-dong-spring-sr-for-enhanced-vpn/</a>=
 ending Wednesday 29<sup>th</sup> July 2020.
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span>Please speak up if you support or oppose adopt=
ing this document into the WG. Please also provide comments/reasons for tha=
t support (or lack thereof). Silence will not be considered consent.<u></u>=
<u></u></span></p>
<p class=3D"MsoNormal"><span><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span>Thanks!<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span>Jim, Joel &amp; Bruno<u></u><u></u></span></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
<p class=3D"MsoNormal"><u></u>=C2=A0<u></u></p>
</div>
</div>

_______________________________________________<br>
spring mailing list<br>
<a href=3D"mailto:spring@ietf.org" target=3D"_blank">spring@ietf.org</a><br=
>
<a href=3D"https://www.ietf.org/mailman/listinfo/spring" rel=3D"noreferrer"=
 target=3D"_blank">https://www.ietf.org/mailman/listinfo/spring</a><br>
</blockquote></div>
</blockquote></div>

--0000000000009110c005ab941bd6--


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Thread-Topic: Conclusion of WG adoption call for draft-dong-spring-sr-for-enhanced-vpn
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Subject: [spring] Conclusion of WG adoption call for draft-dong-spring-sr-for-enhanced-vpn
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Dear SPRING WG:

This email concludes the WG adoption call for draft-dong-spring-sr-for-enha=
nced-vpn.

The chairs noted that although the document received a lot of support, eval=
uation of consensus to adopt should primarily be driven by substantive comm=
ents (technical or otherwise) of which there were several on differing part=
s of the document.

The text of the current document covers two main parts that may be categori=
zed into standards track and informational track.

The first part is related to the association of resources to Segment Routin=
g Identifiers (SIDs) that:

  *   is specifically referenced in the SPRING charter for mapping segments=
 to forwarding behaviors
  *   received strong support, including from technical reviewers
  *   is the main goal of the draft, stating nearly the full draft abstract=
:

   " This document describes the mechanism to associate network resource at=
tributes to Segment Routing Identifiers (SIDs).  Such SIDs are referred to =
as resource-aware SIDs in this document.  The resource-aware SIDs retain th=
eir original forwarding semantics, but with the additional semantics to ide=
ntify the set of network resources available for the packet processing acti=
on.  The resource-aware SIDs can therefore be used to build SR paths with a=
 set of reserved network resources."

While this part of the specification still requires some work in order to s=
pecify resource-aware semantics for all or a subset of existing SIDs, the c=
hairs feel that consensus to adopt this part of the document was reached an=
d that this should form the basis of a standards track document. Therefore,=
 authors can you please publish a WG document covering only this first part=
; the document should:

  *   avoid the use of VPN related terms in the filename, title, abstract, =
page headers etc.
  *   only cover the normative specification of "resource-aware SIDs"
  *   have a filename that reflects the core idea of "resource-aware SIDs" =
and start with draft-ietf-spring... (suggestion draft-ietf-spring-resource-=
aware-segments-00)

In addition, please indicate on the mailing list whether you are aware of a=
ny undisclosed relevant IPR.

Macroscopically, the above will involve removing sections 4 and 5 of the cu=
rrent document, and maybe the penultimate sentence in the abstract. In addi=
tion, the current section 3 (control plane) will need to be significantly r=
e-scoped although this may happen as part of the normal WG document process=
. In the future, it will also need to precisely define the new information/=
parameters that would need to be advertised in the control plane; only leav=
ing the encoding to the corresponding protocol specific documents. Now woul=
d be better, but it may be done in the future given the agreement on the sc=
ope of this document.

The second part is related to the building of virtual networks (e.g. VPN, V=
PN+, VNT, enhanced VPN...). This part is not primarily an extension to segm=
ent/SID, and seems less mature, informational in nature, and one way of bui=
lding an end-to-end service using a set of building blocks, while other met=
hods are possible and may be equally valid. Therefore, this part may be des=
cribed in an informational document independent from the standards track do=
cument. Depending on the direction that authors choose to follow, this subj=
ect may have adherence with the BESS and TEAS WGs, which would need to be c=
onsidered. Alternatively, the document could follow the direction of an app=
licability statement or recipe on how to provide, in an SR network, dedicat=
ed resources for some services (e.g .VPN, IP TV replication service...).

Authors, you are encouraged to publish a second informational document (ind=
ividual-ID) covering the non-resource-aware-SIDs parts (with pointers to th=
e standard track document used as a building block) and then have the WG re=
view and then reevaluate that part of the adoption call.

Thanks,

Jim, Joel, & Bruno





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<body lang=3D"EN-US" link=3D"#0563C1" vlink=3D"#954F72">
<div class=3D"WordSection1">
<p style=3D"mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;ma=
rgin-left:0in">
<span style=3D"color:black">Dear SPRING WG:</span><span style=3D"font-size:=
12.0pt;color:black"><o:p></o:p></span></p>
<p style=3D"mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;ma=
rgin-left:0in;orphans: 2;-webkit-text-stroke-width: 0px;word-spacing:0px">
<span style=3D"color:black">This email concludes the WG adoption call for d=
raft-dong-spring-sr-for-enhanced-vpn.&nbsp;</span><span style=3D"font-size:=
12.0pt;color:black"><o:p></o:p></span></p>
<p style=3D"mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;ma=
rgin-left:0in;orphans: 2;-webkit-text-stroke-width: 0px;word-spacing:0px">
<span style=3D"color:black">The chairs noted that although the document rec=
eived a lot of support, evaluation of consensus to adopt should primarily b=
e driven by substantive comments (technical or otherwise) of which there we=
re several on differing parts of the
 document.&nbsp;</span><span style=3D"font-size:12.0pt;color:black"><o:p></=
o:p></span></p>
<p style=3D"mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;ma=
rgin-left:0in;orphans: 2;-webkit-text-stroke-width: 0px;word-spacing:0px">
<span style=3D"color:black">The text of the current document covers two mai=
n parts that may be categorized into standards track and informational trac=
k.</span><span style=3D"font-size:12.0pt;color:black"><o:p></o:p></span></p=
>
<p style=3D"mso-margin-top-alt:0in;margin-right:0in;margin-bottom:12.0pt;ma=
rgin-left:0in;orphans: 2;-webkit-text-stroke-width: 0px;word-spacing:0px">
<span style=3D"color:black">The first part is related to the association of=
 resources to Segment Routing Identifiers (SIDs) that:</span><span style=3D=
"font-size:12.0pt;color:black"><o:p></o:p></span></p>
<ul style=3D"margin-top:0in;orphans: 2;-webkit-text-stroke-width: 0px;word-=
spacing:0px" type=3D"disc">
<li class=3D"MsoNormal" style=3D"color:black;mso-list:l0 level1 lfo3;vertic=
al-align:baseline">
is specifically referenced in the SPRING charter for mapping segments to fo=
rwarding behaviors<o:p></o:p></li><li class=3D"MsoNormal" style=3D"color:bl=
ack;mso-list:l0 level1 lfo3;vertical-align:baseline">
received strong support, including from technical reviewers<o:p></o:p></li>=
<li class=3D"MsoNormal" style=3D"color:black;margin-bottom:12.0pt;mso-list:=
l0 level1 lfo3;vertical-align:baseline">
is the main goal of the draft, stating nearly the full draft abstract:<o:p>=
</o:p></li></ul>
<p style=3D"mso-margin-top-alt:12.0pt;margin-right:0in;margin-bottom:12.0pt=
;margin-left:0in;orphans: 2;-webkit-text-stroke-width: 0px;word-spacing:0px=
">
<span style=3D"color:black">&nbsp;&nbsp;&nbsp;&quot;&nbsp;This document des=
cribes the mechanism to associate network resource attributes to Segment Ro=
uting Identifiers (SIDs).&nbsp; Such SIDs are referred to as resource-aware=
 SIDs in this document.&nbsp; The resource-aware SIDs retain their original
 forwarding semantics, but with the additional semantics to identify the se=
t of network resources available for the packet processing action.&nbsp; Th=
e resource-aware SIDs can therefore be used to build SR paths with a set of=
 reserved network resources.&quot;</span><span style=3D"font-size:12.0pt;co=
lor:black"><o:p></o:p></span></p>
<p style=3D"mso-margin-top-alt:12.0pt;margin-right:0in;margin-bottom:12.0pt=
;margin-left:0in;orphans: 2;-webkit-text-stroke-width: 0px;word-spacing:0px=
">
<span style=3D"color:black">While this part of the specification still requ=
ires some work in order to specify resource-aware semantics for all or a su=
bset of existing SIDs, the chairs feel that consensus to adopt this part of=
 the document was reached and that
 this should form the basis of a standards track document. Therefore, autho=
rs can you please publish a WG document covering only this first part; the =
document should:</span><span style=3D"font-size:12.0pt;color:black"><o:p></=
o:p></span></p>
<ul style=3D"margin-top:0in;orphans: 2;-webkit-text-stroke-width: 0px;word-=
spacing:0px" type=3D"disc">
<li class=3D"MsoNormal" style=3D"color:black;margin-top:12.0pt;mso-list:l3 =
level1 lfo6;vertical-align:baseline">
avoid the use of VPN related terms in the filename, title, abstract, page h=
eaders etc.<o:p></o:p></li><li class=3D"MsoNormal" style=3D"color:black;mso=
-list:l3 level1 lfo6;vertical-align:baseline">
only cover the normative specification of &#8220;resource-aware SIDs&#8221;=
<o:p></o:p></li><li class=3D"MsoNormal" style=3D"color:black;margin-bottom:=
12.0pt;mso-list:l3 level1 lfo6;vertical-align:baseline">
have a filename that reflects the core idea of &#8220;resource-aware SIDs&#=
8221; and start with draft-ietf-spring&#8230; (suggestion draft-ietf-spring=
-resource-aware-segments-00)<o:p></o:p></li></ul>
<p style=3D"mso-margin-top-alt:12.0pt;margin-right:0in;margin-bottom:12.0pt=
;margin-left:0in;orphans: 2;-webkit-text-stroke-width: 0px;word-spacing:0px=
">
<span style=3D"color:black">In addition, please indicate on the mailing lis=
t whether you are aware of any undisclosed relevant IPR.<o:p></o:p></span><=
/p>
<p style=3D"mso-margin-top-alt:12.0pt;margin-right:0in;margin-bottom:12.0pt=
;margin-left:0in">
<span style=3D"color:black">Macroscopically, the above will involve removin=
g sections 4 and 5 of the current document, and maybe the penultimate sente=
nce in the abstract. In addition, the current section 3 (control plane) wil=
l need to be significantly re-scoped
 although this may happen as part of the normal WG document process. In the=
 future, it will also need to precisely define the new information/paramete=
rs that would need to be advertised in the control plane; only leaving the =
encoding to the corresponding protocol
 specific documents. Now would be better, but it may be done in the future =
given the agreement on the scope of this document.</span><span style=3D"fon=
t-size:12.0pt;color:black"><o:p></o:p></span></p>
<p style=3D"mso-margin-top-alt:12.0pt;margin-right:0in;margin-bottom:12.0pt=
;margin-left:0in;orphans: 2;-webkit-text-stroke-width: 0px;word-spacing:0px=
">
<span style=3D"color:black">The second part is related to the building of v=
irtual networks (e.g. VPN, VPN+, VNT, enhanced VPN...). This part is not pr=
imarily an extension to segment/SID, and seems less mature, informational i=
n nature, and one way of building
 an end-to-end service using a set of building blocks, while other methods =
are possible and may be equally valid. Therefore, this part may be describe=
d in an informational document independent from the standards track documen=
t. Depending on the direction that
 authors choose to follow, this subject may have adherence with the BESS an=
d TEAS WGs, which would need to be considered. Alternatively, the document =
could follow the direction of an applicability statement or recipe on how t=
o provide, in an SR network, dedicated
 resources for some services (e.g .VPN, IP TV replication service...).</spa=
n><span style=3D"font-size:12.0pt;color:black"><o:p></o:p></span></p>
<p style=3D"mso-margin-top-alt:12.0pt;margin-right:0in;margin-bottom:12.0pt=
;margin-left:0in;orphans: 2;-webkit-text-stroke-width: 0px;word-spacing:0px=
">
<span style=3D"color:black">Authors, you are encouraged to publish a second=
 informational document (individual-ID) covering the non-resource-aware-SID=
s parts (with pointers to the standard track document used as a building bl=
ock) and then have the WG review and
 then reevaluate that part of the adoption call. </span><span style=3D"font=
-size:12.0pt;color:black"><o:p></o:p></span></p>
<p style=3D"mso-margin-top-alt:12.0pt;margin-right:0in;margin-bottom:12.0pt=
;margin-left:0in;orphans: 2;-webkit-text-stroke-width: 0px;word-spacing:0px=
">
<span style=3D"color:black">Thanks,</span><span style=3D"font-size:12.0pt;c=
olor:black"><o:p></o:p></span></p>
<p style=3D"mso-margin-top-alt:12.0pt;margin-right:0in;margin-bottom:12.0pt=
;margin-left:0in;orphans: 2;-webkit-text-stroke-width: 0px;word-spacing:0px=
">
<span style=3D"color:black">Jim, Joel, &amp; Bruno</span><span style=3D"fon=
t-size:12.0pt;color:black"><o:p></o:p></span></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><b><span style=3D"font-size:12.0pt"><o:p>&nbsp;</o:p=
></span></b></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
</div>
</body>
</html>

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From: <bruno.decraene@orange.com>
To: "spring@ietf.org" <spring@ietf.org>
CC: "draft-hegde-spring-node-protection-for-sr-te-paths@ietf.org" <draft-hegde-spring-node-protection-for-sr-te-paths@ietf.org>
Thread-Topic: WG adoption call for draft-hegde-spring-node-protection-for-sr-te-paths 
Thread-Index: AdZmaxBja895PvK+QsirQTKFBBYlew==
Date: Thu, 30 Jul 2020 12:24:34 +0000
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Subject: [spring] WG adoption call for draft-hegde-spring-node-protection-for-sr-te-paths
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Hi SPRING WG,

Authors of draft-hegde-spring-node-protection-for-sr-te-paths  [1] have ask=
ed for WG adoption.

Please indicate your support, comments, or objection, for adopting this dra=
ft as a working group item by August 20th 2020. (*)

Could those who are willing to work on this document, please notify the lis=
t. That gives us an indication of the energy level in the working group to =
work on this.

Thanks,
Regards,
Bruno, Jim, Joel

[1] https://tools.ietf.org/html/draft-hegde-spring-node-protection-for-sr-t=
e-paths-07
(*) 3 weeks to account for the IETF meeting week and the august/summer peri=
od.


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<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"mso-ansi-language:EN-G=
B">Hi SPRING WG,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"mso-ansi-language:EN-G=
B"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"mso-ansi-language:EN-G=
B">Authors of draft-<span class=3D"SpellE">hegde</span>-spring-node-protect=
ion-for-<span class=3D"SpellE">sr</span>-<span class=3D"SpellE">te</span>-p=
aths
<span style=3D"mso-spacerun:yes">&nbsp;</span>[1] have asked for WG adoptio=
n.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"mso-ansi-language:EN-G=
B"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"mso-ansi-language:EN-G=
B">Please indicate your support, comments, or objection, for adopting this =
draft as a working group item by August 20th 2020. (*)<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"mso-ansi-language:EN-G=
B"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"mso-ansi-language:EN-G=
B">Could those who are willing to work on this document, please notify the =
list. That gives us an indication of the energy level in the working group =
to work on this.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"mso-ansi-language:EN-G=
B"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"mso-ansi-language:EN-G=
B">Thanks,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"mso-ansi-language:EN-G=
B">Regards,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"mso-ansi-language:EN-G=
B">Bruno, Jim, Joel<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"mso-ansi-language:EN-G=
B"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal">[1] <a href=3D"https://tools.ietf.org/html/draft-heg=
de-spring-node-protection-for-sr-te-paths-07">
https://tools.ietf.org/html/draft-hegde-spring-node-protection-for-sr-te-pa=
ths-07</a><o:p></o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"mso-ansi-language:EN-G=
B">(*) 3 weeks to account for the IETF meeting week and the august/summer p=
eriod.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"mso-ansi-language:EN-G=
B"><o:p>&nbsp;</o:p></span></p>
</div>
<PRE>______________________________________________________________________=
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From: <bruno.decraene@orange.com>
To: "spring@ietf.org" <spring@ietf.org>, "draft-hegde-spring-node-protection-for-sr-te-paths@ietf.org" <draft-hegde-spring-node-protection-for-sr-te-paths@ietf.org>
Thread-Topic: IPR call for draft-hegde-spring-node-protection-for-sr-te-paths 
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Date: Thu, 30 Jul 2020 12:24:35 +0000
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Hi Authors, SPRING WG,

Authors of draft-hegde-spring-node-protection-for-sr-te-paths [1] have aske=
d for WG adoption.

This email starts a poll for IPR.

If you are aware of IPR that applies to draft-hegde-spring-node-protection-=
for-sr-te-paths please respond to this email.
If you are aware of IPR, please indicate whether it has been disclosed in a=
ccordance to the IETF IPR rules (detailed are described in RFCs 3979, 4879,=
 3669 and 5378).

If you are an *author or contributor* please respond to this email, on the =
SPRING mailing list, regardless of whether or not you're aware of any IPR.
If you are not an author or contributor, please explicitly respond only if =
you're aware of IPR that has not yet been disclosed.

Thanks,
Regards,
Bruno, Jim, Joel

[1] https://tools.ietf.org/html/draft-hegde-spring-node-protection-for-sr-t=
e-paths-07


___________________________________________________________________________=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
" Name=3D"List Number 5"/>
<w:LsdException Locked=3D"false" Priority=3D"10" QFormat=3D"true" Name=3D"T=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
" Name=3D"Signature"/>
<w:LsdException Locked=3D"false" Priority=3D"1" SemiHidden=3D"true" UnhideW=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
" Name=3D"Message Header"/>
<w:LsdException Locked=3D"false" Priority=3D"11" QFormat=3D"true" Name=3D"S=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" Priority=3D"22" QFormat=3D"true" Name=3D"S=
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<w:LsdException Locked=3D"false" Priority=3D"20" QFormat=3D"true" Name=3D"E=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
" Name=3D"E-mail Signature"/>
<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" Priority=3D"39" Name=3D"Table Grid"/>
<w:LsdException Locked=3D"false" SemiHidden=3D"true" UnhideWhenUsed=3D"true=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" Name=3D"Placeholder Te=
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<w:LsdException Locked=3D"false" Priority=3D"1" QFormat=3D"true" Name=3D"No=
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<w:LsdException Locked=3D"false" Priority=3D"60" Name=3D"Light Shading"/>
<w:LsdException Locked=3D"false" Priority=3D"61" Name=3D"Light List"/>
<w:LsdException Locked=3D"false" Priority=3D"62" Name=3D"Light Grid"/>
<w:LsdException Locked=3D"false" Priority=3D"63" Name=3D"Medium Shading 1"/>
<w:LsdException Locked=3D"false" Priority=3D"64" Name=3D"Medium Shading 2"/>
<w:LsdException Locked=3D"false" Priority=3D"65" Name=3D"Medium List 1"/>
<w:LsdException Locked=3D"false" Priority=3D"66" Name=3D"Medium List 2"/>
<w:LsdException Locked=3D"false" Priority=3D"67" Name=3D"Medium Grid 1"/>
<w:LsdException Locked=3D"false" Priority=3D"68" Name=3D"Medium Grid 2"/>
<w:LsdException Locked=3D"false" Priority=3D"69" Name=3D"Medium Grid 3"/>
<w:LsdException Locked=3D"false" Priority=3D"70" Name=3D"Dark List"/>
<w:LsdException Locked=3D"false" Priority=3D"71" Name=3D"Colorful Shading"/>
<w:LsdException Locked=3D"false" Priority=3D"72" Name=3D"Colorful List"/>
<w:LsdException Locked=3D"false" Priority=3D"73" Name=3D"Colorful Grid"/>
<w:LsdException Locked=3D"false" Priority=3D"60" Name=3D"Light Shading Acce=
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<w:LsdException Locked=3D"false" Priority=3D"61" Name=3D"Light List Accent =
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<w:LsdException Locked=3D"false" Priority=3D"62" Name=3D"Light Grid Accent =
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<w:LsdException Locked=3D"false" Priority=3D"63" Name=3D"Medium Shading 1 A=
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<w:LsdException Locked=3D"false" Priority=3D"64" Name=3D"Medium Shading 2 A=
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<w:LsdException Locked=3D"false" Priority=3D"65" Name=3D"Medium List 1 Acce=
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<w:LsdException Locked=3D"false" SemiHidden=3D"true" Name=3D"Revision"/>
<w:LsdException Locked=3D"false" Priority=3D"34" QFormat=3D"true" Name=3D"L=
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<w:LsdException Locked=3D"false" Priority=3D"29" QFormat=3D"true" Name=3D"Q=
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<w:LsdException Locked=3D"false" Priority=3D"30" QFormat=3D"true" Name=3D"I=
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<w:LsdException Locked=3D"false" Priority=3D"66" Name=3D"Medium List 2 Acce=
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<w:LsdException Locked=3D"false" Priority=3D"67" Name=3D"Medium Grid 1 Acce=
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<w:LsdException Locked=3D"false" Priority=3D"68" Name=3D"Medium Grid 2 Acce=
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<w:LsdException Locked=3D"false" Priority=3D"69" Name=3D"Medium Grid 3 Acce=
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<w:LsdException Locked=3D"false" Priority=3D"70" Name=3D"Dark List Accent 1=
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<w:LsdException Locked=3D"false" Priority=3D"71" Name=3D"Colorful Shading A=
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<w:LsdException Locked=3D"false" Priority=3D"72" Name=3D"Colorful List Acce=
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<w:LsdException Locked=3D"false" Priority=3D"73" Name=3D"Colorful Grid Acce=
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<w:LsdException Locked=3D"false" Priority=3D"60" Name=3D"Light Shading Acce=
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<w:LsdException Locked=3D"false" Priority=3D"61" Name=3D"Light List Accent =
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<w:LsdException Locked=3D"false" Priority=3D"62" Name=3D"Light Grid Accent =
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<w:LsdException Locked=3D"false" Priority=3D"63" Name=3D"Medium Shading 1 A=
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<w:LsdException Locked=3D"false" Priority=3D"64" Name=3D"Medium Shading 2 A=
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<w:LsdException Locked=3D"false" Priority=3D"65" Name=3D"Medium List 1 Acce=
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<w:LsdException Locked=3D"false" Priority=3D"66" Name=3D"Medium List 2 Acce=
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<w:LsdException Locked=3D"false" Priority=3D"67" Name=3D"Medium Grid 1 Acce=
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<w:LsdException Locked=3D"false" Priority=3D"68" Name=3D"Medium Grid 2 Acce=
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<w:LsdException Locked=3D"false" Priority=3D"69" Name=3D"Medium Grid 3 Acce=
nt 2"/>
<w:LsdException Locked=3D"false" Priority=3D"70" Name=3D"Dark List Accent 2=
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<w:LsdException Locked=3D"false" Priority=3D"71" Name=3D"Colorful Shading A=
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<w:LsdException Locked=3D"false" Priority=3D"72" Name=3D"Colorful List Acce=
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<w:LsdException Locked=3D"false" Priority=3D"73" Name=3D"Colorful Grid Acce=
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<w:LsdException Locked=3D"false" Priority=3D"60" Name=3D"Light Shading Acce=
nt 3"/>
<w:LsdException Locked=3D"false" Priority=3D"61" Name=3D"Light List Accent =
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<w:LsdException Locked=3D"false" Priority=3D"62" Name=3D"Light Grid Accent =
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<w:LsdException Locked=3D"false" Priority=3D"63" Name=3D"Medium Shading 1 A=
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<w:LsdException Locked=3D"false" Priority=3D"64" Name=3D"Medium Shading 2 A=
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<w:LsdException Locked=3D"false" Priority=3D"65" Name=3D"Medium List 1 Acce=
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<w:LsdException Locked=3D"false" Priority=3D"66" Name=3D"Medium List 2 Acce=
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<w:LsdException Locked=3D"false" Priority=3D"67" Name=3D"Medium Grid 1 Acce=
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<w:LsdException Locked=3D"false" Priority=3D"68" Name=3D"Medium Grid 2 Acce=
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<w:LsdException Locked=3D"false" Priority=3D"69" Name=3D"Medium Grid 3 Acce=
nt 3"/>
<w:LsdException Locked=3D"false" Priority=3D"70" Name=3D"Dark List Accent 3=
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<w:LsdException Locked=3D"false" Priority=3D"71" Name=3D"Colorful Shading A=
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<w:LsdException Locked=3D"false" Priority=3D"72" Name=3D"Colorful List Acce=
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<w:LsdException Locked=3D"false" Priority=3D"73" Name=3D"Colorful Grid Acce=
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<w:LsdException Locked=3D"false" Priority=3D"60" Name=3D"Light Shading Acce=
nt 4"/>
<w:LsdException Locked=3D"false" Priority=3D"61" Name=3D"Light List Accent =
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<w:LsdException Locked=3D"false" Priority=3D"62" Name=3D"Light Grid Accent =
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<w:LsdException Locked=3D"false" Priority=3D"63" Name=3D"Medium Shading 1 A=
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<w:LsdException Locked=3D"false" Priority=3D"64" Name=3D"Medium Shading 2 A=
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<w:LsdException Locked=3D"false" Priority=3D"65" Name=3D"Medium List 1 Acce=
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<w:LsdException Locked=3D"false" Priority=3D"66" Name=3D"Medium List 2 Acce=
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<w:LsdException Locked=3D"false" Priority=3D"67" Name=3D"Medium Grid 1 Acce=
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<w:LsdException Locked=3D"false" Priority=3D"68" Name=3D"Medium Grid 2 Acce=
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<w:LsdException Locked=3D"false" Priority=3D"69" Name=3D"Medium Grid 3 Acce=
nt 4"/>
<w:LsdException Locked=3D"false" Priority=3D"70" Name=3D"Dark List Accent 4=
"/>
<w:LsdException Locked=3D"false" Priority=3D"71" Name=3D"Colorful Shading A=
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<w:LsdException Locked=3D"false" Priority=3D"72" Name=3D"Colorful List Acce=
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<w:LsdException Locked=3D"false" Priority=3D"73" Name=3D"Colorful Grid Acce=
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<w:LsdException Locked=3D"false" Priority=3D"60" Name=3D"Light Shading Acce=
nt 5"/>
<w:LsdException Locked=3D"false" Priority=3D"61" Name=3D"Light List Accent =
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<w:LsdException Locked=3D"false" Priority=3D"62" Name=3D"Light Grid Accent =
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<w:LsdException Locked=3D"false" Priority=3D"63" Name=3D"Medium Shading 1 A=
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<body lang=3D"FR" link=3D"#0563C1" vlink=3D"#954F72" style=3D"tab-interval:=
35.4pt">
<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"mso-ansi-language:EN-G=
B">Hi Authors, SPRING WG,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"mso-ansi-language:EN-G=
B"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"mso-ansi-language:EN-G=
B">Authors of draft-<span class=3D"SpellE">hegde</span>-spring-node-protect=
ion-for-<span class=3D"SpellE">sr</span>-<span class=3D"SpellE">te</span>-p=
aths [1] have asked for WG adoption.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"mso-ansi-language:EN-G=
B"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"mso-ansi-language:EN-G=
B">This email starts a poll for IPR.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"mso-ansi-language:EN-G=
B"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"mso-ansi-language:EN-G=
B">If you are aware of IPR that applies to draft-<span class=3D"SpellE">heg=
de</span>-spring-node-protection-for-<span class=3D"SpellE">sr</span>-<span=
 class=3D"SpellE">te</span>-paths please respond
 to this email.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"mso-ansi-language:EN-G=
B">If you are aware of IPR, please indicate whether it has been disclosed i=
n accordance to the IETF IPR rules (detailed are described in RFCs 3979, 48=
79, 3669 and 5378).<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"mso-ansi-language:EN-G=
B"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"mso-ansi-language:EN-G=
B">If you are an *author or contributor* please respond to this email, on t=
he SPRING mailing list, regardless of whether or not you're aware of any IP=
R.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"mso-ansi-language:EN-G=
B">If you are not an author or contributor, please explicitly respond only =
if you're aware of IPR that has not yet been disclosed.<o:p></o:p></span></=
p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"mso-ansi-language:EN-G=
B"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"mso-ansi-language:EN-G=
B">Thanks,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"mso-ansi-language:EN-G=
B">Regards,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"mso-ansi-language:EN-G=
B">Bruno, Jim, Joel<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"mso-ansi-language:EN-G=
B"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"mso-ansi-language:EN-G=
B">[1] </span>
<a href=3D"https://tools.ietf.org/html/draft-hegde-spring-node-protection-f=
or-sr-te-paths-07"><span lang=3D"EN-GB" style=3D"mso-ansi-language:EN-GB">h=
ttps://tools.ietf.org/html/draft-hegde-spring-node-protection-for-sr-te-pat=
hs-07</span></a><span lang=3D"EN-GB" style=3D"mso-ansi-language:EN-GB"><o:p=
></o:p></span></p>
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From nobody Thu Jul 30 05:27:16 2020
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Subject: [spring] The SPRING WG has placed draft-hegde-spring-node-protection-for-sr-te-paths in state "Call For Adoption By WG Issued"
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The SPRING WG has placed draft-hegde-spring-node-protection-for-sr-te-paths
in state Call For Adoption By WG Issued (entered by Bruno Decraene)

The document is available at
https://datatracker.ietf.org/doc/draft-hegde-spring-node-protection-for-sr-te-paths/

Comment:
Call for adoption:
https://mailarchive.ietf.org/arch/msg/spring/B6cx72KAeX1gqDhV0SocT5Qlhmw/

IPR poll:
https://mailarchive.ietf.org/arch/msg/spring/nOPWhT-5IaKVarTGrIGtRCr8zaQ/


From nobody Thu Jul 30 08:04:16 2020
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Subject: [spring] I-D Action: draft-ietf-spring-resource-aware-segments-00.txt
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A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Source Packet Routing in Networking WG of the IETF.

        Title           : Introducing Resource Awareness to SR Segments
        Authors         : Jie Dong
                          Stewart Bryant
                          Takuya Miyasaka
                          Yongqing Zhu
                          Fengwei Qin
                          Zhenqiang Li
                          Francois Clad
	Filename        : draft-ietf-spring-resource-aware-segments-00.txt
	Pages           : 11
	Date            : 2020-07-30

Abstract:
   This document describes the mechanism to associate network resource
   attributes to Segment Routing Identifiers (SIDs).  Such SIDs are
   referred to as resource-aware SIDs in this document.  The resource-
   aware SIDs retain their original forwarding semantics, but with the
   additional semantics to identify the set of network resources
   available for the packet processing action.  The resource-aware SIDs
   can therefore be used to build SR paths or virtual networks with a
   set of reserved network resources.  The proposed mechanism is
   applicable to both segment routing with MPLS data plane (SR-MPLS) and
   segment routing with IPv6 data plane (SRv6).



The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-spring-resource-aware-segments/

There are also htmlized versions available at:
https://tools.ietf.org/html/draft-ietf-spring-resource-aware-segments-00
https://datatracker.ietf.org/doc/html/draft-ietf-spring-resource-aware-segments-00


Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.

Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/



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CC: "draft-hegde-spring-node-protection-for-sr-te-paths@ietf.org" <draft-hegde-spring-node-protection-for-sr-te-paths@ietf.org>, "spring@ietf.org" <spring@ietf.org>
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Subject: Re: [spring] WG adoption call for draft-hegde-spring-node-protection-for-sr-te-paths
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Bruno, and all,
I strongly support adoption of draft-hegde-spring-node-protection-for-sr-te=
-paths as a WG document.
>From my POV  in its current stage it goes far beyond the common requirement=
s for adoption:

*         Addresses a real and important problem within the scope of the SP=
RING WG

*         Represents an excellent start for a solution of this problem.

Regards,
Sasha

Office: +972-39266302
Cell:      +972-549266302
Email:   Alexander.Vainshtein@ecitele.com

From: spring <spring-bounces@ietf.org> On Behalf Of bruno.decraene@orange.c=
om
Sent: Thursday, July 30, 2020 3:25 PM
To: spring@ietf.org
Cc: draft-hegde-spring-node-protection-for-sr-te-paths@ietf.org
Subject: [spring] WG adoption call for draft-hegde-spring-node-protection-f=
or-sr-te-paths

Hi SPRING WG,

Authors of draft-hegde-spring-node-protection-for-sr-te-paths  [1] have ask=
ed for WG adoption.

Please indicate your support, comments, or objection, for adopting this dra=
ft as a working group item by August 20th 2020. (*)

Could those who are willing to work on this document, please notify the lis=
t. That gives us an indication of the energy level in the working group to =
work on this.

Thanks,
Regards,
Bruno, Jim, Joel

[1] https://tools.ietf.org/html/draft-hegde-spring-node-protection-for-sr-t=
e-paths-07<https://clicktime.symantec.com/3Srh5NoGeFUxGGZZMp75fgQ6H2?u=3Dht=
tps%3A%2F%2Ftools.ietf.org%2Fhtml%2Fdraft-hegde-spring-node-protection-for-=
sr-te-paths-07>
(*) 3 weeks to account for the IETF meeting week and the august/summer peri=
od.


___________________________________________________________________________=
______________________________________________



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</head><body lang=3D"EN-US" link=3D"#0563C1" vlink=3D"#954F72">
<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">Bruno, and all,<o:p></=
o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">I strongly support ado=
ption of draft-hegde-spring-node-protection-for-sr-te-paths as a WG documen=
t.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">From my POV&nbsp; in i=
ts current stage it goes far beyond the common requirements for adoption:<o=
:p></o:p></span></p>
<p class=3D"MsoListParagraph" style=3D"text-indent:-18.0pt;mso-list:l0 leve=
l1 lfo1"><![if !supportLists]><span style=3D"font-family:Symbol;color:#1F49=
7D"><span style=3D"mso-list:Ignore">&middot;<span style=3D"font:7.0pt &quot=
;Times New Roman&quot;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span></span><![endif]><span dir=3D"LTR"></span><span style=3D"colo=
r:#1F497D">Addresses a real and important problem within the scope of the S=
PRING WG<o:p></o:p></span></p>
<p class=3D"MsoListParagraph" style=3D"text-indent:-18.0pt;mso-list:l0 leve=
l1 lfo1"><![if !supportLists]><span style=3D"font-family:Symbol;color:#1F49=
7D"><span style=3D"mso-list:Ignore">&middot;<span style=3D"font:7.0pt &quot=
;Times New Roman&quot;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span></span><![endif]><span dir=3D"LTR"></span><span style=3D"colo=
r:#1F497D">Represents an excellent start for a solution of this problem.<o:=
p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<div>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">Regards,<o:p></o:p></s=
pan></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">Sasha<o:p></o:p></span=
></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">Office: +972-39266302<=
o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">Cell:&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp; +972-549266302<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">Email:&nbsp;&nbsp; Ale=
xander.Vainshtein@ecitele.com<o:p></o:p></span></p>
</div>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b>From:</b> spring &lt;spring-bounces@ietf.org&gt; =
<b>On Behalf Of
</b>bruno.decraene@orange.com<br>
<b>Sent:</b> Thursday, July 30, 2020 3:25 PM<br>
<b>To:</b> spring@ietf.org<br>
<b>Cc:</b> draft-hegde-spring-node-protection-for-sr-te-paths@ietf.org<br>
<b>Subject:</b> [spring] WG adoption call for draft-hegde-spring-node-prote=
ction-for-sr-te-paths<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Hi SPRING WG,<o:p></o:p></span>=
</p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Authors of draft-hegde-spring-n=
ode-protection-for-sr-te-paths&nbsp; [1] have asked for WG adoption.<o:p></=
o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Please indicate your support, c=
omments, or objection, for adopting this draft as a working group item by A=
ugust 20th 2020. (*)<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Could those who are willing to =
work on this document, please notify the list. That gives us an indication =
of the energy level in the working group to work on this.<o:p></o:p></span>=
</p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Thanks,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Regards,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Bruno, Jim, Joel<o:p></o:p></sp=
an></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"FR">[1] <a href=3D"https://clicktime.s=
ymantec.com/3Srh5NoGeFUxGGZZMp75fgQ6H2?u=3Dhttps%3A%2F%2Ftools.ietf.org%2Fh=
tml%2Fdraft-hegde-spring-node-protection-for-sr-te-paths-07">
https://tools.ietf.org/html/draft-hegde-spring-node-protection-for-sr-te-pa=
ths-07</a><o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">(*) 3 weeks to account for the =
IETF meeting week and the august/summer period.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB"><o:p>&nbsp;</o:p></span></p>
<pre><span lang=3D"FR">____________________________________________________=
_____________________________________________________________________<o:p><=
/o:p></span></pre>
<pre><span lang=3D"FR"><o:p>&nbsp;</o:p></span></pre>
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<pre><span lang=3D"FR">a l'expediteur et le detruire ainsi que les pieces j=
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</div>


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From: Ron Bonica <rbonica@juniper.net>
To: Alexander Vainshtein <Alexander.Vainshtein@rbbn.com>, "bruno.decraene@orange.com" <bruno.decraene@orange.com>
CC: "draft-hegde-spring-node-protection-for-sr-te-paths@ietf.org" <draft-hegde-spring-node-protection-for-sr-te-paths@ietf.org>, "spring@ietf.org" <spring@ietf.org>
Thread-Topic: [spring] WG adoption call for draft-hegde-spring-node-protection-for-sr-te-paths
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/rK3UIOG19RQ_9H31EJRYSE66T1Y>
Subject: Re: [spring] WG adoption call for draft-hegde-spring-node-protection-for-sr-te-paths
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+1



Juniper Business Use Only
From: spring <spring-bounces@ietf.org> On Behalf Of Alexander Vainshtein
Sent: Thursday, July 30, 2020 11:07 AM
To: bruno.decraene@orange.com
Cc: draft-hegde-spring-node-protection-for-sr-te-paths@ietf.org; spring@iet=
f.org
Subject: Re: [spring] WG adoption call for draft-hegde-spring-node-protecti=
on-for-sr-te-paths

[External Email. Be cautious of content]

Bruno, and all,
I strongly support adoption of draft-hegde-spring-node-protection-for-sr-te=
-paths as a WG document.
>From my POV  in its current stage it goes far beyond the common requirement=
s for adoption:

  *   Addresses a real and important problem within the scope of the SPRING=
 WG
  *   Represents an excellent start for a solution of this problem.

Regards,
Sasha

Office: +972-39266302
Cell:      +972-549266302
Email:   Alexander.Vainshtein@ecitele.com<mailto:Alexander.Vainshtein@ecite=
le.com>

From: spring <spring-bounces@ietf.org<mailto:spring-bounces@ietf.org>> On B=
ehalf Of bruno.decraene@orange.com<mailto:bruno.decraene@orange.com>
Sent: Thursday, July 30, 2020 3:25 PM
To: spring@ietf.org<mailto:spring@ietf.org>
Cc: draft-hegde-spring-node-protection-for-sr-te-paths@ietf.org<mailto:draf=
t-hegde-spring-node-protection-for-sr-te-paths@ietf.org>
Subject: [spring] WG adoption call for draft-hegde-spring-node-protection-f=
or-sr-te-paths

Hi SPRING WG,

Authors of draft-hegde-spring-node-protection-for-sr-te-paths  [1] have ask=
ed for WG adoption.

Please indicate your support, comments, or objection, for adopting this dra=
ft as a working group item by August 20th 2020. (*)

Could those who are willing to work on this document, please notify the lis=
t. That gives us an indication of the energy level in the working group to =
work on this.

Thanks,
Regards,
Bruno, Jim, Joel

[1] https://tools.ietf.org/html/draft-hegde-spring-node-protection-for-sr-t=
e-paths-07<https://urldefense.com/v3/__https:/clicktime.symantec.com/3Srh5N=
oGeFUxGGZZMp75fgQ6H2?u=3Dhttps*3A*2F*2Ftools.ietf.org*2Fhtml*2Fdraft-hegde-=
spring-node-protection-for-sr-te-paths-07__;JSUlJSU!!NEt6yMaO-gk!RWVZfNB2Yu=
g2c4gmmrRsG2G9XneDWMaqhx3exUwFKb2cIuZp4eT3_HN-ZHM0DZa6$>
(*) 3 weeks to account for the IETF meeting week and the august/summer peri=
od.


___________________________________________________________________________=
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<p class=3D"MsoNormal">+1<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"margin:0in;margin=
-bottom:.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal"><b>From:</b> spring &lt;spring-bounces@ietf.org&gt; =
<b>On Behalf Of
</b>Alexander Vainshtein<br>
<b>Sent:</b> Thursday, July 30, 2020 11:07 AM<br>
<b>To:</b> bruno.decraene@orange.com<br>
<b>Cc:</b> draft-hegde-spring-node-protection-for-sr-te-paths@ietf.org; spr=
ing@ietf.org<br>
<b>Subject:</b> Re: [spring] WG adoption call for draft-hegde-spring-node-p=
rotection-for-sr-te-paths<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal" style=3D"line-height:12.0pt;background:#FFEB9C"><b><=
span style=3D"font-size:10.5pt;font-family:&quot;Lato&quot;,sans-serif;colo=
r:black">[External Email. Be cautious of content]<o:p></o:p></span></b></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<div>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">Bruno, and all,</span>=
<o:p></o:p></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">I strongly support ado=
ption of draft-hegde-spring-node-protection-for-sr-te-paths as a WG documen=
t.</span><o:p></o:p></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">From my POV&nbsp; in i=
ts current stage it goes far beyond the common requirements for adoption:</=
span><o:p></o:p></p>
<ul style=3D"margin-top:0in" type=3D"disc">
<li class=3D"MsoListParagraph" style=3D"margin-left:0in;mso-list:l0 level1 =
lfo3"><span style=3D"color:#1F497D">Addresses a real and important problem =
within the scope of the SPRING WG</span><o:p></o:p></li><li class=3D"MsoLis=
tParagraph" style=3D"margin-left:0in;mso-list:l0 level1 lfo3"><span style=
=3D"color:#1F497D">Represents an excellent start for a solution of this pro=
blem.</span><o:p></o:p></li></ul>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">&nbsp;</span><o:p></o:=
p></p>
<div>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">Regards,</span><o:p></=
o:p></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">Sasha</span><o:p></o:p=
></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">&nbsp;</span><o:p></o:=
p></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">Office: +972-39266302<=
/span><o:p></o:p></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">Cell:&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp; +972-549266302</span><o:p></o:p></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">Email:&nbsp;&nbsp; <a =
href=3D"mailto:Alexander.Vainshtein@ecitele.com">
Alexander.Vainshtein@ecitele.com</a></span><o:p></o:p></p>
</div>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">&nbsp;</span><o:p></o:=
p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal"><b>From:</b> spring &lt;<a href=3D"mailto:spring-bou=
nces@ietf.org">spring-bounces@ietf.org</a>&gt;
<b>On Behalf Of </b><a href=3D"mailto:bruno.decraene@orange.com">bruno.decr=
aene@orange.com</a><br>
<b>Sent:</b> Thursday, July 30, 2020 3:25 PM<br>
<b>To:</b> <a href=3D"mailto:spring@ietf.org">spring@ietf.org</a><br>
<b>Cc:</b> <a href=3D"mailto:draft-hegde-spring-node-protection-for-sr-te-p=
aths@ietf.org">
draft-hegde-spring-node-protection-for-sr-te-paths@ietf.org</a><br>
<b>Subject:</b> [spring] WG adoption call for draft-hegde-spring-node-prote=
ction-for-sr-te-paths<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal">&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Hi SPRING WG,</span><o:p></o:p>=
</p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Authors of draft-hegde-spring-n=
ode-protection-for-sr-te-paths&nbsp; [1] have asked for WG adoption.</span>=
<o:p></o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Please indicate your support, c=
omments, or objection, for adopting this draft as a working group item by A=
ugust 20th 2020. (*)</span><o:p></o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Could those who are willing to =
work on this document, please notify the list. That gives us an indication =
of the energy level in the working group to work on this.</span><o:p></o:p>=
</p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Thanks,</span><o:p></o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Regards,</span><o:p></o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Bruno, Jim, Joel</span><o:p></o=
:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">&nbsp;</span><o:p></o:p></p>
<p class=3D"MsoNormal"><span lang=3D"FR">[1] <a href=3D"https://urldefense.=
com/v3/__https:/clicktime.symantec.com/3Srh5NoGeFUxGGZZMp75fgQ6H2?u=3Dhttps=
*3A*2F*2Ftools.ietf.org*2Fhtml*2Fdraft-hegde-spring-node-protection-for-sr-=
te-paths-07__;JSUlJSU!!NEt6yMaO-gk!RWVZfNB2Yug2c4gmmrRsG2G9XneDWMaqhx3exUwF=
Kb2cIuZp4eT3_HN-ZHM0DZa6$">
https://tools.ietf.org/html/draft-hegde-spring-node-protection-for-sr-te-pa=
ths-07</a></span><o:p></o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">(*) 3 weeks to account for the =
IETF meeting week and the august/summer period.</span><o:p></o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">&nbsp;</span><o:p></o:p></p>
<pre><span lang=3D"FR">____________________________________________________=
_____________________________________________________________________</span=
><o:p></o:p></pre>
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From: Shraddha Hegde <shraddha@juniper.net>
To: "bruno.decraene@orange.com" <bruno.decraene@orange.com>, "spring@ietf.org" <spring@ietf.org>, "draft-hegde-spring-node-protection-for-sr-te-paths@ietf.org" <draft-hegde-spring-node-protection-for-sr-te-paths@ietf.org>
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Archived-At: <https://mailarchive.ietf.org/arch/msg/spring/q8qGtBopGOZmyX7zoMArOUSKNSA>
Subject: Re: [spring] IPR call for draft-hegde-spring-node-protection-for-sr-te-paths
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I am not aware of any IPR, other than the one declared  by Juniper.

Rgds
Shraddha



Juniper Business Use Only
From: bruno.decraene@orange.com <bruno.decraene@orange.com>
Sent: Thursday, July 30, 2020 5:55 PM
To: spring@ietf.org; draft-hegde-spring-node-protection-for-sr-te-paths@iet=
f.org
Subject: IPR call for draft-hegde-spring-node-protection-for-sr-te-paths

[External Email. Be cautious of content]

Hi Authors, SPRING WG,

Authors of draft-hegde-spring-node-protection-for-sr-te-paths [1] have aske=
d for WG adoption.

This email starts a poll for IPR.

If you are aware of IPR that applies to draft-hegde-spring-node-protection-=
for-sr-te-paths please respond to this email.
If you are aware of IPR, please indicate whether it has been disclosed in a=
ccordance to the IETF IPR rules (detailed are described in RFCs 3979, 4879,=
 3669 and 5378).

If you are an *author or contributor* please respond to this email, on the =
SPRING mailing list, regardless of whether or not you're aware of any IPR.
If you are not an author or contributor, please explicitly respond only if =
you're aware of IPR that has not yet been disclosed.

Thanks,
Regards,
Bruno, Jim, Joel

[1] https://tools.ietf.org/html/draft-hegde-spring-node-protection-for-sr-t=
e-paths-07<https://urldefense.com/v3/__https:/tools.ietf.org/html/draft-heg=
de-spring-node-protection-for-sr-te-paths-07__;!!NEt6yMaO-gk!Qx8EF1Ml_jWYqe=
7Tb5tNIY_OKECsP-pQuK4W2LEt1s4kUA4V1jHNqirXtv48wS9x$>


___________________________________________________________________________=
______________________________________________



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Orange decline toute responsabilite si ce message a ete altere, deforme ou =
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<div class=3D"WordSection1">
<p class=3D"MsoNormal">I am not aware of any IPR, other than the one declar=
ed &nbsp;by Juniper.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Rgds<o:p></o:p></p>
<p class=3D"MsoNormal">Shraddha<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"msipfooter30b3d538" align=3D"center" style=3D"margin:0in;margin=
-bottom:.0001pt;text-align:center">
<span style=3D"font-size:7.0pt;color:black">Juniper Business Use Only</span=
><o:p></o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in">
<p class=3D"MsoNormal"><b>From:</b> bruno.decraene@orange.com &lt;bruno.dec=
raene@orange.com&gt;
<br>
<b>Sent:</b> Thursday, July 30, 2020 5:55 PM<br>
<b>To:</b> spring@ietf.org; draft-hegde-spring-node-protection-for-sr-te-pa=
ths@ietf.org<br>
<b>Subject:</b> IPR call for draft-hegde-spring-node-protection-for-sr-te-p=
aths <o:p>
</o:p></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal" style=3D"line-height:12.0pt;background:#FFEB9C"><b><=
span lang=3D"FR" style=3D"font-size:10.5pt;font-family:&quot;Lato&quot;,san=
s-serif;color:black">[External Email. Be cautious of content]<o:p></o:p></s=
pan></b></p>
<p class=3D"MsoNormal"><span lang=3D"FR"><o:p>&nbsp;</o:p></span></p>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Hi Authors, SPRING WG,<o:p></o:=
p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Authors of draft-hegde-spring-n=
ode-protection-for-sr-te-paths [1] have asked for WG adoption.<o:p></o:p></=
span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">This email starts a poll for IP=
R.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">If you are aware of IPR that ap=
plies to draft-hegde-spring-node-protection-for-sr-te-paths please respond =
to this email.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">If you are aware of IPR, please=
 indicate whether it has been disclosed in accordance to the IETF IPR rules=
 (detailed are described in RFCs 3979, 4879, 3669 and 5378).<o:p></o:p></sp=
an></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">If you are an *author or contri=
butor* please respond to this email, on the SPRING mailing list, regardless=
 of whether or not you're aware of any IPR.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">If you are not an author or con=
tributor, please explicitly respond only if you're aware of IPR that has no=
t yet been disclosed.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Thanks,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Regards,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Bruno, Jim, Joel<o:p></o:p></sp=
an></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">[1] </span><span lang=3D"FR"><a=
 href=3D"https://urldefense.com/v3/__https:/tools.ietf.org/html/draft-hegde=
-spring-node-protection-for-sr-te-paths-07__;!!NEt6yMaO-gk!Qx8EF1Ml_jWYqe7T=
b5tNIY_OKECsP-pQuK4W2LEt1s4kUA4V1jHNqirXtv48wS9x$"><span lang=3D"EN-GB">htt=
ps://tools.ietf.org/html/draft-hegde-spring-node-protection-for-sr-te-paths=
-07</span></a></span><span lang=3D"EN-GB"><o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB"><o:p>&nbsp;</o:p></span></p>
<pre><span lang=3D"FR">____________________________________________________=
_____________________________________________________________________<o:p><=
/o:p></span></pre>
<pre><span lang=3D"FR"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"FR">Ce message et ses pieces jointes peuvent contenir de=
s informations confidentielles ou privilegiees et ne doivent donc<o:p></o:p=
></span></pre>
<pre><span lang=3D"FR">pas etre diffuses, exploites ou copies sans autorisa=
tion. Si vous avez recu ce message par erreur, veuillez le signaler<o:p></o=
:p></span></pre>
<pre><span lang=3D"FR">a l'expediteur et le detruire ainsi que les pieces j=
ointes. Les messages electroniques etant susceptibles d'alteration,<o:p></o=
:p></span></pre>
<pre><span lang=3D"FR">Orange decline toute responsabilite si ce message a =
ete altere, deforme ou falsifie. Merci.<o:p></o:p></span></pre>
<pre><span lang=3D"FR"><o:p>&nbsp;</o:p></span></pre>
<pre><span lang=3D"FR">This message and its attachments may contain confide=
ntial or privileged information that may be protected by law;<o:p></o:p></s=
pan></pre>
<pre><span lang=3D"FR">they should not be distributed, used or copied witho=
ut authorisation.<o:p></o:p></span></pre>
<pre><span lang=3D"FR">If you have received this email in error, please not=
ify the sender and delete this message and its attachments.<o:p></o:p></spa=
n></pre>
<pre><span lang=3D"FR">As emails may be altered, Orange is not liable for m=
essages that have been modified, changed or falsified.<o:p></o:p></span></p=
re>
<pre><span lang=3D"FR">Thank you.<o:p></o:p></span></pre>
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From: Greg Mirsky <gregimirsky@gmail.com>
Date: Thu, 30 Jul 2020 17:07:51 -0700
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To: Bruno Decraene <bruno.decraene@orange.com>
Cc: "spring@ietf.org" <spring@ietf.org>,  "draft-hegde-spring-node-protection-for-sr-te-paths@ietf.org" <draft-hegde-spring-node-protection-for-sr-te-paths@ietf.org>
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Subject: Re: [spring] WG adoption call for draft-hegde-spring-node-protection-for-sr-te-paths
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Dear All,
I support the WG adoption of the draft. It is well-written and addresses
one of the problems that are awaiting the solution.

Regards,
Greg

On Thu, Jul 30, 2020 at 5:25 AM <bruno.decraene@orange.com> wrote:

> Hi SPRING WG,
>
>
>
> Authors of draft-hegde-spring-node-protection-for-sr-te-paths  [1] have
> asked for WG adoption.
>
>
>
> Please indicate your support, comments, or objection, for adopting this
> draft as a working group item by August 20th 2020. (*)
>
>
>
> Could those who are willing to work on this document, please notify the
> list. That gives us an indication of the energy level in the working group
> to work on this.
>
>
>
> Thanks,
>
> Regards,
>
> Bruno, Jim, Joel
>
>
>
> [1]
> https://tools.ietf.org/html/draft-hegde-spring-node-protection-for-sr-te-paths-07
>
> (*) 3 weeks to account for the IETF meeting week and the august/summer
> period.
>
>
>
> _________________________________________________________________________________________________________________________
>
> Ce message et ses pieces jointes peuvent contenir des informations confidentielles ou privilegiees et ne doivent donc
> pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu ce message par erreur, veuillez le signaler
> a l'expediteur et le detruire ainsi que les pieces jointes. Les messages electroniques etant susceptibles d'alteration,
> Orange decline toute responsabilite si ce message a ete altere, deforme ou falsifie. Merci.
>
> This message and its attachments may contain confidential or privileged information that may be protected by law;
> they should not be distributed, used or copied without authorisation.
> If you have received this email in error, please notify the sender and delete this message and its attachments.
> As emails may be altered, Orange is not liable for messages that have been modified, changed or falsified.
> Thank you.
>
> _______________________________________________
> spring mailing list
> spring@ietf.org
> https://www.ietf.org/mailman/listinfo/spring
>

--0000000000001e729905abb1956a
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<div dir=3D"ltr">Dear All,<div>I support the WG adoption of the draft. It i=
s well-written and addresses one of the problems that are awaiting the solu=
tion.</div><div><br></div><div>Regards,</div><div>Greg</div></div><br><div =
class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Thu, Jul 30,=
 2020 at 5:25 AM &lt;<a href=3D"mailto:bruno.decraene@orange.com">bruno.dec=
raene@orange.com</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" =
style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);pa=
dding-left:1ex">







<div lang=3D"FR">
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Hi SPRING WG,<u></u><u></u></sp=
an></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Authors of draft-<span>hegde</s=
pan>-spring-node-protection-for-<span>sr</span>-<span>te</span>-paths
<span>=C2=A0</span>[1] have asked for WG adoption.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Please indicate your support, c=
omments, or objection, for adopting this draft as a working group item by A=
ugust 20th 2020. (*)<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Could those who are willing to =
work on this document, please notify the list. That gives us an indication =
of the energy level in the working group to work on this.<u></u><u></u></sp=
an></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Thanks,<u></u><u></u></span></p=
>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Regards,<u></u><u></u></span></=
p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Bruno, Jim, Joel<u></u><u></u><=
/span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal">[1] <a href=3D"https://tools.ietf.org/html/draft-heg=
de-spring-node-protection-for-sr-te-paths-07" target=3D"_blank">
https://tools.ietf.org/html/draft-hegde-spring-node-protection-for-sr-te-pa=
ths-07</a><u></u><u></u></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">(*) 3 weeks to account for the =
IETF meeting week and the august/summer period.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB"><u></u>=C2=A0<u></u></span></p>
</div>
<pre>______________________________________________________________________=
___________________________________________________

Ce message et ses pieces jointes peuvent contenir des informations confiden=
tielles ou privilegiees et ne doivent donc
pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu=
 ce message par erreur, veuillez le signaler
a l&#39;expediteur et le detruire ainsi que les pieces jointes. Les message=
s electroniques etant susceptibles d&#39;alteration,
Orange decline toute responsabilite si ce message a ete altere, deforme ou =
falsifie. Merci.

This message and its attachments may contain confidential or privileged inf=
ormation that may be protected by law;
they should not be distributed, used or copied without authorisation.
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</pre></div>

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From: Chris Bowers <chrisbowers.ietf@gmail.com>
Date: Fri, 31 Jul 2020 09:03:56 -0500
Message-ID: <CAHzoHbuy870d=Aniwp0A4t+KGdZc5a8Bx8XRXa=bvy7gKoyRTA@mail.gmail.com>
To: Bruno Decraene <bruno.decraene@orange.com>
Cc: "spring@ietf.org" <spring@ietf.org>,  "draft-hegde-spring-node-protection-for-sr-te-paths@ietf.org" <draft-hegde-spring-node-protection-for-sr-te-paths@ietf.org>
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Subject: Re: [spring] IPR call for draft-hegde-spring-node-protection-for-sr-te-paths
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I am not aware of any relevant IPR other than the one already disclosed.

Chris

On Thu, Jul 30, 2020 at 7:25 AM <bruno.decraene@orange.com> wrote:

> Hi Authors, SPRING WG,
>
>
>
> Authors of draft-hegde-spring-node-protection-for-sr-te-paths [1] have
> asked for WG adoption.
>
>
>
> This email starts a poll for IPR.
>
>
>
> If you are aware of IPR that applies to draft-hegde
> -spring-node-protection-for-sr-te-paths please respond to this email.
>
> If you are aware of IPR, please indicate whether it has been disclosed in
> accordance to the IETF IPR rules (detailed are described in RFCs 3979,
> 4879, 3669 and 5378).
>
>
>
> If you are an *author or contributor* please respond to this email, on the
> SPRING mailing list, regardless of whether or not you're aware of any IPR.
>
> If you are not an author or contributor, please explicitly respond only if
> you're aware of IPR that has not yet been disclosed.
>
>
>
> Thanks,
>
> Regards,
>
> Bruno, Jim, Joel
>
>
>
> [1]
> https://tools.ietf.org/html/draft-hegde-spring-node-protection-for-sr-te-paths-07
>
>
>
> _________________________________________________________________________________________________________________________
>
> Ce message et ses pieces jointes peuvent contenir des informations confidentielles ou privilegiees et ne doivent donc
> pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu ce message par erreur, veuillez le signaler
> a l'expediteur et le detruire ainsi que les pieces jointes. Les messages electroniques etant susceptibles d'alteration,
> Orange decline toute responsabilite si ce message a ete altere, deforme ou falsifie. Merci.
>
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> If you have received this email in error, please notify the sender and delete this message and its attachments.
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> Thank you.
>
> _______________________________________________
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> https://www.ietf.org/mailman/listinfo/spring
>

--000000000000bd397a05abbd4bb9
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<div dir=3D"ltr"><div>I am not aware of any relevant IPR other than the one=
 already disclosed.<br></div><div><br></div><div>Chris</div><div><br></div>=
<div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Thu, Ju=
l 30, 2020 at 7:25 AM &lt;<a href=3D"mailto:bruno.decraene@orange.com">brun=
o.decraene@orange.com</a>&gt; wrote:<br></div><blockquote class=3D"gmail_qu=
ote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,20=
4);padding-left:1ex">







<div lang=3D"FR">
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Hi Authors, SPRING WG,<u></u><u=
></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Authors of draft-<span>hegde</s=
pan>-spring-node-protection-for-<span>sr</span>-<span>te</span>-paths [1] h=
ave asked for WG adoption.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">This email starts a poll for IP=
R.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">If you are aware of IPR that ap=
plies to draft-<span>hegde</span>-spring-node-protection-for-<span>sr</span=
>-<span>te</span>-paths please respond
 to this email.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">If you are aware of IPR, please=
 indicate whether it has been disclosed in accordance to the IETF IPR rules=
 (detailed are described in RFCs 3979, 4879, 3669 and 5378).<u></u><u></u><=
/span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">If you are an *author or contri=
butor* please respond to this email, on the SPRING mailing list, regardless=
 of whether or not you&#39;re aware of any IPR.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">If you are not an author or con=
tributor, please explicitly respond only if you&#39;re aware of IPR that ha=
s not yet been disclosed.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Thanks,<u></u><u></u></span></p=
>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Regards,<u></u><u></u></span></=
p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Bruno, Jim, Joel<u></u><u></u><=
/span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">[1] </span>
<a href=3D"https://tools.ietf.org/html/draft-hegde-spring-node-protection-f=
or-sr-te-paths-07" target=3D"_blank"><span lang=3D"EN-GB">https://tools.iet=
f.org/html/draft-hegde-spring-node-protection-for-sr-te-paths-07</span></a>=
<span lang=3D"EN-GB"><u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB"><u></u>=C2=A0<u></u></span></p>
</div>
<pre>______________________________________________________________________=
___________________________________________________

Ce message et ses pieces jointes peuvent contenir des informations confiden=
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a l&#39;expediteur et le detruire ainsi que les pieces jointes. Les message=
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Orange decline toute responsabilite si ce message a ete altere, deforme ou =
falsifie. Merci.

This message and its attachments may contain confidential or privileged inf=
ormation that may be protected by law;
they should not be distributed, used or copied without authorisation.
If you have received this email in error, please notify the sender and dele=
te this message and its attachments.
As emails may be altered, Orange is not liable for messages that have been =
modified, changed or falsified.
Thank you.
</pre></div>

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Dear all,

Hope you enjoyed this week!

Please review the meeting minutes for our SPRING session in this IETF on Mo=
nday.
https://datatracker.ietf.org/meeting/108/session/spring

Please let us know if there is any correction needed.

Thank you and take care! :)

Best Regards,
Shuping


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<p class=3D"MsoNormal"><span lang=3D"EN-US">Dear all, <o:p></o:p></span></p=
>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Hope you enjoyed this week!<o:p=
></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Please review the meeting minut=
es for our SPRING session in this IETF on Monday.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><a href=3D"https://datatracker.=
ietf.org/meeting/108/session/spring">https://datatracker.ietf.org/meeting/1=
08/session/spring</a><o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Please let us know if there is =
any correction needed.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Thank you and take care! </span=
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<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Best Regards, <o:p></o:p></span=
></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Shuping <o:p></o:p></span></p>
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From: "Dongjie (Jimmy)" <jie.dong@huawei.com>
To: James Guichard <james.n.guichard@futurewei.com>, "spring@ietf.org" <spring@ietf.org>
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Thread-Topic: Conclusion of WG adoption call for draft-dong-spring-sr-for-enhanced-vpn
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Hi Chairs,

Thanks a lot for your guidance in moving forward with this document. We hav=
e submitted the first part as standard track, and will continue to work on =
the rest as informational.

And I am unaware of any undisclosed relevant IPR.

Best regards,
Jie

From: spring [mailto:spring-bounces@ietf.org] On Behalf Of James Guichard
Sent: Wednesday, July 29, 2020 11:32 PM
To: spring@ietf.org
Cc: spring-chairs@ietf.org
Subject: [spring] Conclusion of WG adoption call for draft-dong-spring-sr-f=
or-enhanced-vpn


Dear SPRING WG:

This email concludes the WG adoption call for draft-dong-spring-sr-for-enha=
nced-vpn.

The chairs noted that although the document received a lot of support, eval=
uation of consensus to adopt should primarily be driven by substantive comm=
ents (technical or otherwise) of which there were several on differing part=
s of the document.

The text of the current document covers two main parts that may be categori=
zed into standards track and informational track.

The first part is related to the association of resources to Segment Routin=
g Identifiers (SIDs) that:

  *   is specifically referenced in the SPRING charter for mapping segments=
 to forwarding behaviors
  *   received strong support, including from technical reviewers
  *   is the main goal of the draft, stating nearly the full draft abstract=
:

   " This document describes the mechanism to associate network resource at=
tributes to Segment Routing Identifiers (SIDs).  Such SIDs are referred to =
as resource-aware SIDs in this document.  The resource-aware SIDs retain th=
eir original forwarding semantics, but with the additional semantics to ide=
ntify the set of network resources available for the packet processing acti=
on.  The resource-aware SIDs can therefore be used to build SR paths with a=
 set of reserved network resources."

While this part of the specification still requires some work in order to s=
pecify resource-aware semantics for all or a subset of existing SIDs, the c=
hairs feel that consensus to adopt this part of the document was reached an=
d that this should form the basis of a standards track document. Therefore,=
 authors can you please publish a WG document covering only this first part=
; the document should:

  *   avoid the use of VPN related terms in the filename, title, abstract, =
page headers etc.
  *   only cover the normative specification of "resource-aware SIDs"
  *   have a filename that reflects the core idea of "resource-aware SIDs" =
and start with draft-ietf-spring... (suggestion draft-ietf-spring-resource-=
aware-segments-00)

In addition, please indicate on the mailing list whether you are aware of a=
ny undisclosed relevant IPR.

Macroscopically, the above will involve removing sections 4 and 5 of the cu=
rrent document, and maybe the penultimate sentence in the abstract. In addi=
tion, the current section 3 (control plane) will need to be significantly r=
e-scoped although this may happen as part of the normal WG document process=
. In the future, it will also need to precisely define the new information/=
parameters that would need to be advertised in the control plane; only leav=
ing the encoding to the corresponding protocol specific documents. Now woul=
d be better, but it may be done in the future given the agreement on the sc=
ope of this document.

The second part is related to the building of virtual networks (e.g. VPN, V=
PN+, VNT, enhanced VPN...). This part is not primarily an extension to segm=
ent/SID, and seems less mature, informational in nature, and one way of bui=
lding an end-to-end service using a set of building blocks, while other met=
hods are possible and may be equally valid. Therefore, this part may be des=
cribed in an informational document independent from the standards track do=
cument. Depending on the direction that authors choose to follow, this subj=
ect may have adherence with the BESS and TEAS WGs, which would need to be c=
onsidered. Alternatively, the document could follow the direction of an app=
licability statement or recipe on how to provide, in an SR network, dedicat=
ed resources for some services (e.g .VPN, IP TV replication service...).

Authors, you are encouraged to publish a second informational document (ind=
ividual-ID) covering the non-resource-aware-SIDs parts (with pointers to th=
e standard track document used as a building block) and then have the WG re=
view and then reevaluate that part of the adoption call.

Thanks,

Jim, Joel, & Bruno





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<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">Hi Chairs,
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">Thanks a lot for your guidance in moving forward with this docume=
nt. We have submitted the first part as standard track, and will continue t=
o work on the rest as informational.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">And I am unaware of any undisclosed relevant IPR.<o:p></o:p></spa=
n></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">Best regards,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.5pt;color=
:#1F497D">Jie<o:p></o:p></span></p>
<p class=3D"MsoNormal"><a name=3D"_MailEndCompose"><span lang=3D"EN-US" sty=
le=3D"font-size:10.5pt;color:#1F497D"><o:p>&nbsp;</o:p></span></a></p>
<div>
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0cm 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US">From:</span></b><span lang=
=3D"EN-US"> spring [mailto:spring-bounces@ietf.org]
<b>On Behalf Of </b>James Guichard<br>
<b>Sent:</b> Wednesday, July 29, 2020 11:32 PM<br>
<b>To:</b> spring@ietf.org<br>
<b>Cc:</b> spring-chairs@ietf.org<br>
<b>Subject:</b> [spring] Conclusion of WG adoption call for draft-dong-spri=
ng-sr-for-enhanced-vpn<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p style=3D"mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:12.0pt;ma=
rgin-left:0cm">
<span lang=3D"EN-US" style=3D"color:black">Dear SPRING WG:<o:p></o:p></span=
></p>
<p style=3D"mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:12.0pt;ma=
rgin-left:0cm;orphans: 2;-webkit-text-stroke-width: 0px;word-spacing:0px">
<span lang=3D"EN-US" style=3D"color:black">This email concludes the WG adop=
tion call for draft-dong-spring-sr-for-enhanced-vpn.&nbsp;<o:p></o:p></span=
></p>
<p style=3D"mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:12.0pt;ma=
rgin-left:0cm;orphans: 2;-webkit-text-stroke-width: 0px;word-spacing:0px">
<span lang=3D"EN-US" style=3D"color:black">The chairs noted that although t=
he document received a lot of support, evaluation of consensus to adopt sho=
uld primarily be driven by substantive comments (technical or otherwise) of=
 which there were several on differing
 parts of the document.&nbsp;<o:p></o:p></span></p>
<p style=3D"mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:12.0pt;ma=
rgin-left:0cm;orphans: 2;-webkit-text-stroke-width: 0px;word-spacing:0px">
<span lang=3D"EN-US" style=3D"color:black">The text of the current document=
 covers two main parts that may be categorized into standards track and inf=
ormational track.<o:p></o:p></span></p>
<p style=3D"mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:12.0pt;ma=
rgin-left:0cm;orphans: 2;-webkit-text-stroke-width: 0px;word-spacing:0px">
<span lang=3D"EN-US" style=3D"color:black">The first part is related to the=
 association of resources to Segment Routing Identifiers (SIDs) that:<o:p><=
/o:p></span></p>
<ul style=3D"margin-top:0cm;orphans: 2;-webkit-text-stroke-width: 0px;word-=
spacing:0px" type=3D"disc">
<li class=3D"MsoNormal" style=3D"color:black;mso-list:l1 level1 lfo3;vertic=
al-align:baseline">
<span lang=3D"EN-US">is specifically referenced in the SPRING charter for m=
apping segments to forwarding behaviors<o:p></o:p></span></li><li class=3D"=
MsoNormal" style=3D"color:black;mso-list:l1 level1 lfo3;vertical-align:base=
line">
<span lang=3D"EN-US">received strong support, including from technical revi=
ewers<o:p></o:p></span></li><li class=3D"MsoNormal" style=3D"color:black;ma=
rgin-bottom:12.0pt;mso-list:l1 level1 lfo3;vertical-align:baseline">
<span lang=3D"EN-US">is the main goal of the draft, stating nearly the full=
 draft abstract:<o:p></o:p></span></li></ul>
<p style=3D"mso-margin-top-alt:12.0pt;margin-right:0cm;margin-bottom:12.0pt=
;margin-left:0cm;orphans: 2;-webkit-text-stroke-width: 0px;word-spacing:0px=
">
<span lang=3D"EN-US" style=3D"color:black">&nbsp;&nbsp;&nbsp;&quot;&nbsp;Th=
is document describes the mechanism to associate network resource attribute=
s to Segment Routing Identifiers (SIDs).&nbsp; Such SIDs are referred to as=
 resource-aware SIDs in this document.&nbsp; The resource-aware SIDs retain
 their original forwarding semantics, but with the additional semantics to =
identify the set of network resources available for the packet processing a=
ction.&nbsp; The resource-aware SIDs can therefore be used to build SR path=
s with a set of reserved network resources.&quot;<o:p></o:p></span></p>
<p style=3D"mso-margin-top-alt:12.0pt;margin-right:0cm;margin-bottom:12.0pt=
;margin-left:0cm;orphans: 2;-webkit-text-stroke-width: 0px;word-spacing:0px=
">
<span lang=3D"EN-US" style=3D"color:black">While this part of the specifica=
tion still requires some work in order to specify resource-aware semantics =
for all or a subset of existing SIDs, the chairs feel that consensus to ado=
pt this part of the document was reached
 and that this should form the basis of a standards track document. Therefo=
re, authors can you please publish a WG document covering only this first p=
art; the document should:<o:p></o:p></span></p>
<ul style=3D"margin-top:0cm;orphans: 2;-webkit-text-stroke-width: 0px;word-=
spacing:0px" type=3D"disc">
<li class=3D"MsoNormal" style=3D"color:black;margin-top:12.0pt;mso-list:l3 =
level1 lfo6;vertical-align:baseline">
<span lang=3D"EN-US">avoid the use of VPN related terms in the filename, ti=
tle, abstract, page headers etc.<o:p></o:p></span></li><li class=3D"MsoNorm=
al" style=3D"color:black;mso-list:l3 level1 lfo6;vertical-align:baseline">
<span lang=3D"EN-US">only cover the normative specification of &#8220;resou=
rce-aware SIDs&#8221;<o:p></o:p></span></li><li class=3D"MsoNormal" style=
=3D"color:black;margin-bottom:12.0pt;mso-list:l3 level1 lfo6;vertical-align=
:baseline">
<span lang=3D"EN-US">have a filename that reflects the core idea of &#8220;=
resource-aware SIDs&#8221; and start with draft-ietf-spring&#8230; (suggest=
ion draft-ietf-spring-resource-aware-segments-00)<o:p></o:p></span></li></u=
l>
<p style=3D"mso-margin-top-alt:12.0pt;margin-right:0cm;margin-bottom:12.0pt=
;margin-left:0cm;orphans: 2;-webkit-text-stroke-width: 0px;word-spacing:0px=
">
<span lang=3D"EN-US" style=3D"color:black">In addition, please indicate on =
the mailing list whether you are aware of any undisclosed relevant IPR.<o:p=
></o:p></span></p>
<p style=3D"mso-margin-top-alt:12.0pt;margin-right:0cm;margin-bottom:12.0pt=
;margin-left:0cm">
<span lang=3D"EN-US" style=3D"color:black">Macroscopically, the above will =
involve removing sections 4 and 5 of the current document, and maybe the pe=
nultimate sentence in the abstract. In addition, the current section 3 (con=
trol plane) will need to be significantly
 re-scoped although this may happen as part of the normal WG document proce=
ss. In the future, it will also need to precisely define the new informatio=
n/parameters that would need to be advertised in the control plane; only le=
aving the encoding to the corresponding
 protocol specific documents. Now would be better, but it may be done in th=
e future given the agreement on the scope of this document.<o:p></o:p></spa=
n></p>
<p style=3D"mso-margin-top-alt:12.0pt;margin-right:0cm;margin-bottom:12.0pt=
;margin-left:0cm;orphans: 2;-webkit-text-stroke-width: 0px;word-spacing:0px=
">
<span lang=3D"EN-US" style=3D"color:black">The second part is related to th=
e building of virtual networks (e.g. VPN, VPN&#43;, VNT, enhanced VPN...). =
This part is not primarily an extension to segment/SID, and seems less matu=
re, informational in nature, and one way
 of building an end-to-end service using a set of building blocks, while ot=
her methods are possible and may be equally valid. Therefore, this part may=
 be described in an informational document independent from the standards t=
rack document. Depending on the
 direction that authors choose to follow, this subject may have adherence w=
ith the BESS and TEAS WGs, which would need to be considered. Alternatively=
, the document could follow the direction of an applicability statement or =
recipe on how to provide, in an
 SR network, dedicated resources for some services (e.g .VPN, IP TV replica=
tion service...).<o:p></o:p></span></p>
<p style=3D"mso-margin-top-alt:12.0pt;margin-right:0cm;margin-bottom:12.0pt=
;margin-left:0cm;orphans: 2;-webkit-text-stroke-width: 0px;word-spacing:0px=
">
<span lang=3D"EN-US" style=3D"color:black">Authors, you are encouraged to p=
ublish a second informational document (individual-ID) covering the non-res=
ource-aware-SIDs parts (with pointers to the standard track document used a=
s a building block) and then have the
 WG review and then reevaluate that part of the adoption call. <o:p></o:p><=
/span></p>
<p style=3D"mso-margin-top-alt:12.0pt;margin-right:0cm;margin-bottom:12.0pt=
;margin-left:0cm;orphans: 2;-webkit-text-stroke-width: 0px;word-spacing:0px=
">
<span lang=3D"EN-US" style=3D"color:black">Thanks,<o:p></o:p></span></p>
<p style=3D"mso-margin-top-alt:12.0pt;margin-right:0cm;margin-bottom:12.0pt=
;margin-left:0cm;orphans: 2;-webkit-text-stroke-width: 0px;word-spacing:0px=
">
<span lang=3D"EN-US" style=3D"color:black">Jim, Joel, &amp; Bruno<o:p></o:p=
></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><b><span lang=3D"EN-US" style=3D"font-size:12.0pt"><=
o:p>&nbsp;</o:p></span></b></p>
<div style=3D"border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm =
4.0pt">
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
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