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Subject: [Pce] [Editorial Errata Reported] RFC5440 (4956)
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The following errata report has been submitted for RFC5440,
"Path Computation Element (PCE) Communication Protocol (PCEP)".

--------------------------------------
You may review the report below and at:
http://www.rfc-editor.org/errata_search.php?rfc=5440&eid=4956

--------------------------------------
Type: Editorial
Reported by: Adrian Farrel <afarrel@juniper.net>

Section: 9.3

Original Text
-------------


Corrected Text
--------------


Notes
-----
This section does not tell IANA the range for the Object-Types to be registered for each Object-Class, nor what to do with the values not assigned in this document.

IANA has correctly recognised that the top value is 15, and that the values between those shown here and 15 should be marked as "Unassigned." 

However, there is confusion over the value 0 for an Object-Type. The old entries (arising from RFC 5440) do not mention 0. Newer entries for RFC 7470 and several I-Ds in the pipe mark 0 as Unassigned.

For consistency, ALL 0 Object-Types should be marked "Reserved".

(This might need an Errata Report against some other RFCs if you are particularly fussy, but I think we can do it all on this report.)

Instructions:
-------------
This erratum is currently posted as "Reported". If necessary, please
use "Reply All" to discuss whether it should be verified or
rejected. When a decision is reached, the verifying party  
can log in to change the status and edit the report, if necessary. 

--------------------------------------
RFC5440 (draft-ietf-pce-pcep-19)
--------------------------------------
Title               : Path Computation Element (PCE) Communication Protocol (PCEP)
Publication Date    : March 2009
Author(s)           : JP. Vasseur, Ed., JL. Le Roux, Ed.
Category            : PROPOSED STANDARD
Source              : Path Computation Element
Area                : Routing
Stream              : IETF
Verifying Party     : IESG


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From: "Adrian Farrel" <adrian@olddog.co.uk>
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Subject: Re: [Pce] [Editorial Errata Reported] RFC5440 (4956)
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Looking at the IANA section for draft-ietf-pce-inter-layer-ext-12.txt which is
in flight with the IANA team, we discovered that the Object-Type value of 0 is
not mentioned in nearly every entry at
https://www.iana.org/assignments/pcep/pcep.xhtml#pcep-objects

Looking back at RFC 5440 (and at some more recent RFCs) I think the intention
was that an Object-Type of 0 should not be used (perhaps the first PCEP
implementation was written in Pascal?).

Thus, this Errata Report proposes that IANA be instructed to mark ALL
Object-Type 0 entries as "Reserved".

Largely speaking, this just fills in missing information, but it changes the 0
values for:

LSP draft-ietf-pce-stateful-pce (0 currently "Unassigned") 
SRP draft-ietf-pce-stateful-pce (0 currently "Unassigned")
VENDOR-INFORMATION RFC 7470 (0 is "Unassigned")
BU draft-ietf-pce-pcep-service-aware (0 currently "Unassigned")

It would also be wise to mark the unassigned Object Classes to read...
OLD
36-255 Unassigned 1-15: Unassigned 
NEW
36-255 Unassigned 0: Reserved
                                        1-15: Unassigned 

Since two of these documents are in late-stage RFC Editor processing, I suggest
the ADs would do well to act SOON.

Adrian

> -----Original Message-----
> From: Pce [mailto:pce-bounces@ietf.org] On Behalf Of RFC Errata System
> Sent: 01 March 2017 10:30
> To: jpv@cisco.com; jeanlouis.leroux@orange-ftgroup.com; akatlas@gmail.com;
> db3546@att.com; aretana@cisco.com; jonathan.hardwick@metaswitch.com;
> jpv@cisco.com; julien.meuric@orange.com
> Cc: pce@ietf.org; text/plain@rfc-editor.org; rfc-editor@rfc-editor.orgContent-
> Type; afarrel@juniper.net; charset=UTF-8@rfc-editor.org
> Subject: [Pce] [Editorial Errata Reported] RFC5440 (4956)
> 
> The following errata report has been submitted for RFC5440,
> "Path Computation Element (PCE) Communication Protocol (PCEP)".
> 
> --------------------------------------
> You may review the report below and at:
> http://www.rfc-editor.org/errata_search.php?rfc=5440&eid=4956
> 
> --------------------------------------
> Type: Editorial
> Reported by: Adrian Farrel <afarrel@juniper.net>
> 
> Section: 9.3
> 
> Original Text
> -------------
> 
> 
> Corrected Text
> --------------
> 
> 
> Notes
> -----
> This section does not tell IANA the range for the Object-Types to be
registered
> for each Object-Class, nor what to do with the values not assigned in this
> document.
> 
> IANA has correctly recognised that the top value is 15, and that the values
> between those shown here and 15 should be marked as "Unassigned."
> 
> However, there is confusion over the value 0 for an Object-Type. The old
entries
> (arising from RFC 5440) do not mention 0. Newer entries for RFC 7470 and
several
> I-Ds in the pipe mark 0 as Unassigned.
> 
> For consistency, ALL 0 Object-Types should be marked "Reserved".
> 
> (This might need an Errata Report against some other RFCs if you are
particularly
> fussy, but I think we can do it all on this report.)
> 
> Instructions:
> -------------
> This erratum is currently posted as "Reported". If necessary, please
> use "Reply All" to discuss whether it should be verified or
> rejected. When a decision is reached, the verifying party
> can log in to change the status and edit the report, if necessary.
> 
> --------------------------------------
> RFC5440 (draft-ietf-pce-pcep-19)
> --------------------------------------
> Title               : Path Computation Element (PCE) Communication Protocol
(PCEP)
> Publication Date    : March 2009
> Author(s)           : JP. Vasseur, Ed., JL. Le Roux, Ed.
> Category            : PROPOSED STANDARD
> Source              : Path Computation Element
> Area                : Routing
> Stream              : IETF
> Verifying Party     : IESG
> 
> _______________________________________________
> Pce mailing list
> Pce@ietf.org
> https://www.ietf.org/mailman/listinfo/pce


From nobody Thu Mar  2 00:04:16 2017
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From: Dhruv Dhody <dhruv.dhody@huawei.com>
To: "pce@ietf.org" <pce@ietf.org>
Thread-Topic: Update to PCEP-LS
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Subject: [Pce] Update to PCEP-LS
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Hi WG,=20

Ramon provided comments on the PCEP-LS based on his implementation experien=
ce. Thanks Ramon.=20
There are some changes in the draft - https://datatracker.ietf.org/doc/draf=
t-dhodylee-pce-pcep-ls/=20

* Clarification of TLV format=20
* Protocol-ID for Unspecified, PCEP-LS and Reserved (0) added

The email discussion is included below -=20

Regards,
Dhruv

>Hi Dhruv, Young
>
>I have started to implement a subset of PCEPLS and -- still lacking an
>in-depth analysis -- I have a couple of questions (sorry if they are
>obvious):
>
>- How do you withdraw a link / node (as in MP_UNREACH_NLRI). Section
>9.2.10 refers to remove an attribute (I am still trying to understand the=
=20
>case where I need to remove an attribute, in our use cases, we announce a=
=20
>link, update its attributes, and we may withdraw it, but it is strange to=
=20
>remove an attribute. Maybe it will come more natural when we get more=20
>insight on incremental updates). I considered sending an LS object with al=
l=20
>the attributes following Sect 9.2.10 but I am not convinced. I was expecti=
ng=20
>something like a flag in the LS object where I need to indicate e.g. the=20
>link descriptors and it conveys end-of-lifetime for the link/node.
>

[Dhruv]: Yes you are right, we have the R flag in LS object.=20

   o  R (Remove - 1 bit): On LSRpt messages the R Flag indicates that
      the node/link/prefix has been removed from the PCC and the PCE
      SHOULD remove from its database.  Upon receiving an LS Report with
      the R Flag set to 1, the PCE SHOULD remove all state for the
      node/link/prefix identified by the LS Identifiers from its
      database.

And only to remove an attribute, we use -=20

9.2.10.  Removal of an Attribute

   One of a key objective of PCEP-LS is to encode and carry only the
   impacted attributes of a Node, a Link or a Prefix.  To accommodate
   this requirement, incase of a removal of an attribute, the sub-TLV
   MUST be included with no 'value' field and length=3D0 to indicate that
   the attribute is removed.  On receiving a sub-TLV with zero length,
   the receiver removes the attribute from the database.

>- Much like in BGPLS I am lacking the ability to know the switching=20
>capability of a link (generalizing, ISCD / IACD).  Is this intentional,=20
>focusing on packet switching?

[Dhruv]: This is covered in - https://tools.ietf.org/html/draft-lee-pce-pce=
p-ls-optical-00

[Ramon]: Thanks Dhruv, that was useful. Thanks for the pointer to optical (=
works for us, but I was hoping to find ISCD Swcap etc. in a wider GMPLS awa=
re context ;)
In an "ideal world" I would have assumed pcepls  pcepls-gmpls [or even inte=
rgated both, but it was not the case with RFC5440, and pcepls-optical but I=
MHO you can leave it as is :-)

>- A small nit for me (ignore) is in RBNF I like to see <foo-list> ::=3D=20
><foo> [ <foo-list> ]
>
>so seeing <ls-report-list> ::=3D <LS> [ <ls-report-list> ] has been=20
>"mentally" translated to
>
><ls-list> ::=3D <LS> [ <ls-list> ]
><ls-report-list> ::=3D <ls-list>
>
>(I am aware both are equivalent and this is so common in RFC that I just=20
>deal with it...)

[Dhruv]: As you noted we have a mixed bad, I would like to keep it as it is=
 for now!=20

[Ramon]: Sure,no need to change now. It may be likely that other objects ar=
e added in the future (?)


>- Typo Sect. 9.2.2  Tho allow -> To allow

[Dhruv]: Ack

>- I would be explicit in quoting RFC5440 in the TLV format and, more=20
>importantly, I would clearly state that the same TLV format is used for=20
>sub-TLVs (unless I missed it) specially with potential confusion reusing=20
>BGP-LS ?
>
>- In page 23 the table mentions BGP-LS TLV but only mentions the BGP_LS=20
>TLV for a few of them? On that note... It is fine either way, but I am=20
>curious on why not aligning with the actual values as well?

[Dhruv]: We decided to point to IS-IS TLV when that exist, and for new TLVs=
 that were newly created in BGP-LS to point there.=20
We could point to BGP-LS for all, but BGP-LS would itself point to IS-IS ad=
ding one more indirection :)

[Ramon]: Not a big deal, alternatively you could consider putting the BGP-L=
S TLV id for all, so  from needing to consult IS-IS refs :)

[Dhruv]: I wish there was more space in the table for me to do that!=20

> OTOH, this is not addressing why not pick the same values of TLVs as BGP =
has? (I am fine with any value, but this question is a FAQ)

[Dhruv]: With hindsight, yes that could have been done. But at the same tim=
e since the padding/length rules are different between BGP and PCEP, one mu=
st encode/decode these TLVs independently and  maintaining an loose link be=
tween them is better.=20

>
>- Personally, I would like a protocol_id of 0, unspecified, because I am=20
>exporting a TED that is acutally constructed by multiple mechanisms.

[Dhruv]: Correct, I have updated 0 as reserved (similar to BGP-LS). Is that=
 okay?=20

[Ramon]: I was thinking more of a "I don't care" value instead of a "reserv=
ed" one (which I cannot use). But since BGP-LS has a "reserved" better stic=
k to it. In other words, I may need to advertise a TED to a p-PCE where the=
 child PCE has constructed the TED from multiple sources without keeping tr=
ack of it.
Additionally, would you include a "pcep-ls" identifier? since you are consi=
dering bpg-ls, why not pcep-ls? I am guessing recursive architectures or ev=
en the parent PCE advertising the TED to a third party, with the p-PCE havi=
ng learnt the topology=20

[Dhruv]: Added - Unspecified, PCEP-LS, Reserved.=20

>
>
>Surely more will come later ;)
>
>Best regards
>Ramon


From nobody Thu Mar  2 13:22:52 2017
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Subject: [Pce] [Errata Verified] RFC5440 (4956)
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The following errata report has been verified for RFC5440,
"Path Computation Element (PCE) Communication Protocol (PCEP)". 

--------------------------------------
You may review the report below and at:
http://www.rfc-editor.org/errata_search.php?rfc=5440&eid=4956

--------------------------------------
Status: Verified
Type: Editorial

Reported by: Adrian Farrel <afarrel@juniper.net>
Date Reported: 2017-03-01
Verified by: Deborah Brungard (IESG)

Section: 9.3

Original Text
-------------


Corrected Text
--------------


Notes
-----
This section does not tell IANA the range for the Object-Types to be registered for each Object-Class, nor what to do with the values not assigned in this document.

IANA has correctly recognised that the top value is 15, and that the values between those shown here and 15 should be marked as "Unassigned." 

However, there is confusion over the value 0 for an Object-Type. The old entries (arising from RFC 5440) do not mention 0. Newer entries for RFC 7470 and several I-Ds in the pipe mark 0 as Unassigned.

For consistency, ALL 0 Object-Types should be marked "Reserved".

(This might need an Errata Report against some other RFCs if you are particularly fussy, but I think we can do it all on this report.)

--------------------------------------
RFC5440 (draft-ietf-pce-pcep-19)
--------------------------------------
Title               : Path Computation Element (PCE) Communication Protocol (PCEP)
Publication Date    : March 2009
Author(s)           : JP. Vasseur, Ed., JL. Le Roux, Ed.
Category            : PROPOSED STANDARD
Source              : Path Computation Element
Area                : Routing
Stream              : IETF
Verifying Party     : IESG


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From: "Adrian Farrel" <adrian@olddog.co.uk>
To: "'BRUNGARD, DEBORAH A'" <db3546@att.com>, <pce@ietf.org>, <rtg-ads@ietf.org>
References: <20170301102953.91F6AB8107B@rfc-editor.org> <051c01d29278$fe0ea870$fa2bf950$@olddog.co.uk> <F64C10EAA68C8044B33656FA214632C85DE8D935@MISOUT7MSGUSRDE.ITServices.sbc.com>
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Date: Thu, 2 Mar 2017 22:05:10 -0000
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Subject: Re: [Pce] [Editorial Errata Reported] RFC5440 (4956)
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Thanks, very timely.

I think you need to pass this on to IANA and ask them to act.
Explicit communication needed because they don't follow Errata.

Adrian

> -----Original Message-----
> From: BRUNGARD, DEBORAH A [mailto:db3546@att.com]
> Sent: 02 March 2017 21:25
> To: adrian@olddog.co.uk; pce@ietf.org; rtg-ads@ietf.org
> Subject: RE: [Pce] [Editorial Errata Reported] RFC5440 (4956)
> 
> Hi Adrian,
> 
> Much thanks for the catch. I've verified - hopefully this meets your criteria
for
> SOON as I would not want to be an example in your draft:-)
> 
> Deborah
> 
> 
> > -----Original Message-----
> > From: Adrian Farrel [mailto:adrian@olddog.co.uk]
> > Sent: Wednesday, March 01, 2017 5:46 AM
> > To: pce@ietf.org; rtg-ads@ietf.org
> > Subject: RE: [Pce] [Editorial Errata Reported] RFC5440 (4956)
> >
> > Looking at the IANA section for draft-ietf-pce-inter-layer-ext-12.txt which
is
> > in flight with the IANA team, we discovered that the Object-Type value of 0
is
> > not mentioned in nearly every entry at
> > https://urldefense.proofpoint.com/v2/url?u=https-
> > 3A__www.iana.org_assignments_pcep_pcep.xhtml-23pcep-
> > 2Dobjects&d=DQICAg&c=LFYZ-
> > o9_HUMeMTSQicvjIg&r=6UhGpW9lwi9dM7jYlxXD8w&m=zTpEpsMI7ID2Y51iuu
> > MuyeVi5EQRlmaSiZu972Yo_5w&s=NE2thC9Tljil9xWVP8oIBIXIM2nY4X5Vel0ElRI
> > B2zw&e=
> >
> > Looking back at RFC 5440 (and at some more recent RFCs) I think the
intention
> > was that an Object-Type of 0 should not be used (perhaps the first PCEP
> > implementation was written in Pascal?).
> >
> > Thus, this Errata Report proposes that IANA be instructed to mark ALL
> > Object-Type 0 entries as "Reserved".
> >
> > Largely speaking, this just fills in missing information, but it changes the
0
> > values for:
> >
> > LSP draft-ietf-pce-stateful-pce (0 currently "Unassigned")
> > SRP draft-ietf-pce-stateful-pce (0 currently "Unassigned")
> > VENDOR-INFORMATION RFC 7470 (0 is "Unassigned")
> > BU draft-ietf-pce-pcep-service-aware (0 currently "Unassigned")
> >
> > It would also be wise to mark the unassigned Object Classes to read...
> > OLD
> > 36-255 Unassigned 1-15: Unassigned
> > NEW
> > 36-255 Unassigned 0: Reserved
> >                                         1-15: Unassigned
> >
> > Since two of these documents are in late-stage RFC Editor processing, I
suggest
> > the ADs would do well to act SOON.
> >
> > Adrian
> >
> > > -----Original Message-----
> > > From: Pce [mailto:pce-bounces@ietf.org] On Behalf Of RFC Errata System
> > > Sent: 01 March 2017 10:30
> > > To: jpv@cisco.com; jeanlouis.leroux@orange-ftgroup.com;
> > akatlas@gmail.com;
> > > db3546@att.com; aretana@cisco.com; jonathan.hardwick@metaswitch.com;
> > > jpv@cisco.com; julien.meuric@orange.com
> > > Cc: pce@ietf.org; text/plain@rfc-editor.org; rfc-editor@rfc-
> > editor.orgContent-
> > > Type; afarrel@juniper.net; charset=UTF-8@rfc-editor.org
> > > Subject: [Pce] [Editorial Errata Reported] RFC5440 (4956)
> > >
> > > The following errata report has been submitted for RFC5440,
> > > "Path Computation Element (PCE) Communication Protocol (PCEP)".
> > >
> > > --------------------------------------
> > > You may review the report below and at:
> > > https://urldefense.proofpoint.com/v2/url?u=http-3A__www.rfc-
> > 2Deditor.org_errata-5Fsearch.php-3Frfc-3D5440-26eid-
> > 3D4956&d=DQICAg&c=LFYZ-
> > o9_HUMeMTSQicvjIg&r=6UhGpW9lwi9dM7jYlxXD8w&m=zTpEpsMI7ID2Y51iuu
> > MuyeVi5EQRlmaSiZu972Yo_5w&s=nD7-oTxeqDLDwDFIhk-
> > taL1kYPVOoqBVUEVETZwUdMk&e=
> > >
> > > --------------------------------------
> > > Type: Editorial
> > > Reported by: Adrian Farrel <afarrel@juniper.net>
> > >
> > > Section: 9.3
> > >
> > > Original Text
> > > -------------
> > >
> > >
> > > Corrected Text
> > > --------------
> > >
> > >
> > > Notes
> > > -----
> > > This section does not tell IANA the range for the Object-Types to be
> > registered
> > > for each Object-Class, nor what to do with the values not assigned in this
> > > document.
> > >
> > > IANA has correctly recognised that the top value is 15, and that the
values
> > > between those shown here and 15 should be marked as "Unassigned."
> > >
> > > However, there is confusion over the value 0 for an Object-Type. The old
> > entries
> > > (arising from RFC 5440) do not mention 0. Newer entries for RFC 7470 and
> > several
> > > I-Ds in the pipe mark 0 as Unassigned.
> > >
> > > For consistency, ALL 0 Object-Types should be marked "Reserved".
> > >
> > > (This might need an Errata Report against some other RFCs if you are
> > particularly
> > > fussy, but I think we can do it all on this report.)
> > >
> > > Instructions:
> > > -------------
> > > This erratum is currently posted as "Reported". If necessary, please
> > > use "Reply All" to discuss whether it should be verified or
> > > rejected. When a decision is reached, the verifying party
> > > can log in to change the status and edit the report, if necessary.
> > >
> > > --------------------------------------
> > > RFC5440 (draft-ietf-pce-pcep-19)
> > > --------------------------------------
> > > Title               : Path Computation Element (PCE) Communication
Protocol
> > (PCEP)
> > > Publication Date    : March 2009
> > > Author(s)           : JP. Vasseur, Ed., JL. Le Roux, Ed.
> > > Category            : PROPOSED STANDARD
> > > Source              : Path Computation Element
> > > Area                : Routing
> > > Stream              : IETF
> > > Verifying Party     : IESG
> > >
> > > _______________________________________________
> > > Pce mailing list
> > > Pce@ietf.org
> > > https://urldefense.proofpoint.com/v2/url?u=https-
> > 3A__www.ietf.org_mailman_listinfo_pce&d=DQICAg&c=LFYZ-
> > o9_HUMeMTSQicvjIg&r=6UhGpW9lwi9dM7jYlxXD8w&m=zTpEpsMI7ID2Y51iuu
> > MuyeVi5EQRlmaSiZu972Yo_5w&s=dNNwtvf5IuP6oBe28khBLWrQenNDCXUiFxT
> > BBnzEZo0&e=


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From: "BRUNGARD, DEBORAH A" <db3546@att.com>
To: "adrian@olddog.co.uk" <adrian@olddog.co.uk>, "pce@ietf.org" <pce@ietf.org>, "rtg-ads@ietf.org" <rtg-ads@ietf.org>
Thread-Topic: [Pce] [Editorial Errata Reported] RFC5440 (4956)
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Subject: Re: [Pce] [Editorial Errata Reported] RFC5440 (4956)
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Hi Adrian,

Much thanks for the catch. I've verified - hopefully this meets your criter=
ia for SOON as I would not want to be an example in your draft:-)

Deborah


> -----Original Message-----
> From: Adrian Farrel [mailto:adrian@olddog.co.uk]
> Sent: Wednesday, March 01, 2017 5:46 AM
> To: pce@ietf.org; rtg-ads@ietf.org
> Subject: RE: [Pce] [Editorial Errata Reported] RFC5440 (4956)
>=20
> Looking at the IANA section for draft-ietf-pce-inter-layer-ext-12.txt whi=
ch is
> in flight with the IANA team, we discovered that the Object-Type value of=
 0 is
> not mentioned in nearly every entry at
> https://urldefense.proofpoint.com/v2/url?u=3Dhttps-
> 3A__www.iana.org_assignments_pcep_pcep.xhtml-23pcep-
> 2Dobjects&d=3DDQICAg&c=3DLFYZ-
> o9_HUMeMTSQicvjIg&r=3D6UhGpW9lwi9dM7jYlxXD8w&m=3DzTpEpsMI7ID2Y51iuu
> MuyeVi5EQRlmaSiZu972Yo_5w&s=3DNE2thC9Tljil9xWVP8oIBIXIM2nY4X5Vel0ElRI
> B2zw&e=3D
>=20
> Looking back at RFC 5440 (and at some more recent RFCs) I think the inten=
tion
> was that an Object-Type of 0 should not be used (perhaps the first PCEP
> implementation was written in Pascal?).
>=20
> Thus, this Errata Report proposes that IANA be instructed to mark ALL
> Object-Type 0 entries as "Reserved".
>=20
> Largely speaking, this just fills in missing information, but it changes =
the 0
> values for:
>=20
> LSP draft-ietf-pce-stateful-pce (0 currently "Unassigned")
> SRP draft-ietf-pce-stateful-pce (0 currently "Unassigned")
> VENDOR-INFORMATION RFC 7470 (0 is "Unassigned")
> BU draft-ietf-pce-pcep-service-aware (0 currently "Unassigned")
>=20
> It would also be wise to mark the unassigned Object Classes to read...
> OLD
> 36-255 Unassigned 1-15: Unassigned
> NEW
> 36-255 Unassigned 0: Reserved
>                                         1-15: Unassigned
>=20
> Since two of these documents are in late-stage RFC Editor processing, I s=
uggest
> the ADs would do well to act SOON.
>=20
> Adrian
>=20
> > -----Original Message-----
> > From: Pce [mailto:pce-bounces@ietf.org] On Behalf Of RFC Errata System
> > Sent: 01 March 2017 10:30
> > To: jpv@cisco.com; jeanlouis.leroux@orange-ftgroup.com;
> akatlas@gmail.com;
> > db3546@att.com; aretana@cisco.com; jonathan.hardwick@metaswitch.com;
> > jpv@cisco.com; julien.meuric@orange.com
> > Cc: pce@ietf.org; text/plain@rfc-editor.org; rfc-editor@rfc-
> editor.orgContent-
> > Type; afarrel@juniper.net; charset=3DUTF-8@rfc-editor.org
> > Subject: [Pce] [Editorial Errata Reported] RFC5440 (4956)
> >
> > The following errata report has been submitted for RFC5440,
> > "Path Computation Element (PCE) Communication Protocol (PCEP)".
> >
> > --------------------------------------
> > You may review the report below and at:
> > https://urldefense.proofpoint.com/v2/url?u=3Dhttp-3A__www.rfc-
> 2Deditor.org_errata-5Fsearch.php-3Frfc-3D5440-26eid-
> 3D4956&d=3DDQICAg&c=3DLFYZ-
> o9_HUMeMTSQicvjIg&r=3D6UhGpW9lwi9dM7jYlxXD8w&m=3DzTpEpsMI7ID2Y51iuu
> MuyeVi5EQRlmaSiZu972Yo_5w&s=3DnD7-oTxeqDLDwDFIhk-
> taL1kYPVOoqBVUEVETZwUdMk&e=3D
> >
> > --------------------------------------
> > Type: Editorial
> > Reported by: Adrian Farrel <afarrel@juniper.net>
> >
> > Section: 9.3
> >
> > Original Text
> > -------------
> >
> >
> > Corrected Text
> > --------------
> >
> >
> > Notes
> > -----
> > This section does not tell IANA the range for the Object-Types to be
> registered
> > for each Object-Class, nor what to do with the values not assigned in t=
his
> > document.
> >
> > IANA has correctly recognised that the top value is 15, and that the va=
lues
> > between those shown here and 15 should be marked as "Unassigned."
> >
> > However, there is confusion over the value 0 for an Object-Type. The ol=
d
> entries
> > (arising from RFC 5440) do not mention 0. Newer entries for RFC 7470 an=
d
> several
> > I-Ds in the pipe mark 0 as Unassigned.
> >
> > For consistency, ALL 0 Object-Types should be marked "Reserved".
> >
> > (This might need an Errata Report against some other RFCs if you are
> particularly
> > fussy, but I think we can do it all on this report.)
> >
> > Instructions:
> > -------------
> > This erratum is currently posted as "Reported". If necessary, please
> > use "Reply All" to discuss whether it should be verified or
> > rejected. When a decision is reached, the verifying party
> > can log in to change the status and edit the report, if necessary.
> >
> > --------------------------------------
> > RFC5440 (draft-ietf-pce-pcep-19)
> > --------------------------------------
> > Title               : Path Computation Element (PCE) Communication Prot=
ocol
> (PCEP)
> > Publication Date    : March 2009
> > Author(s)           : JP. Vasseur, Ed., JL. Le Roux, Ed.
> > Category            : PROPOSED STANDARD
> > Source              : Path Computation Element
> > Area                : Routing
> > Stream              : IETF
> > Verifying Party     : IESG
> >
> > _______________________________________________
> > Pce mailing list
> > Pce@ietf.org
> > https://urldefense.proofpoint.com/v2/url?u=3Dhttps-
> 3A__www.ietf.org_mailman_listinfo_pce&d=3DDQICAg&c=3DLFYZ-
> o9_HUMeMTSQicvjIg&r=3D6UhGpW9lwi9dM7jYlxXD8w&m=3DzTpEpsMI7ID2Y51iuu
> MuyeVi5EQRlmaSiZu972Yo_5w&s=3DdNNwtvf5IuP6oBe28khBLWrQenNDCXUiFxT
> BBnzEZo0&e=3D


From nobody Fri Mar  3 12:49:49 2017
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From: Girish Birajdar <girish134@gmail.com>
Date: Fri, 3 Mar 2017 12:49:44 -0800
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To: draft-ietf-pce-stateful-sync-optimizations@ietf.org
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Subject: Re: [Pce] I-D Action: draft-ietf-pce-stateful-sync-optimizations-09.txt
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--94eb2c189b968540010549d9afeb
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Dear Authors,

Suggested TLV values conflict with in other PCE drafts. I could find 2
conflicts, there may be more. Is there a way the PCE WG can manage TLV
values across drafts? For compatibility between vendors and different
software release from same vendor - keeping these values unchanged is
critical.

8.3.  STATEFUL-PCE-CAPABILITY TLV
    *TBD11 (suggested* value 26) TRIGGERED-INITIAL-SYNC    This document
*    TBD12 (suggested* value 28) TRIGGERED-RESYNC          This document


https://tools.ietf.org/html/draft-ietf-pce-segment-routing-08#section-9.4 -
SR-PCE-CAPABILITY is 26

https://tools.ietf.org/html/draft-ietf-pce-lsp-setup-type-03#section-6.1
PATH-SETUP-TYPE is 28

Thanks,

Girish


On Tue, Feb 28, 2017 at 6:08 AM, <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 Path Computation Element of the IETF.
>
>         Title           : Optimizations of Label Switched Path State
> Synchronization Procedures for a Stateful PCE
>         Authors         : Edward Crabbe
>                           Ina Minei
>                           Jan Medved
>                           Robert Varga
>                           Xian Zhang
>                           Dhruv Dhody
>         Filename        : draft-ietf-pce-stateful-sync-
> optimizations-09.txt
>         Pages           : 25
>         Date            : 2017-02-28
>
> Abstract:
>    A stateful Path Computation Element (PCE) has access to not only the
>    information disseminated by the network's Interior Gateway Protocol
>    (IGP), but also the set of active paths and their reserved resources
>    for its computation.  The additional Label Switched Path (LSP) state
>    information allows the PCE to compute constrained paths while
>    considering individual LSPs and their interactions.  This requires a
>    state synchronization mechanism between the PCE and the network, PCE
>    and path computation clients (PCCs), and between cooperating PCEs.
>    The basic mechanism for state synchronization is part of the stateful
>    PCE specification.  This document presents motivations for
>    optimizations to the base state synchronization procedure and
>    specifies the required Path Computation Element Communication
>    Protocol (PCEP) extensions.
>
>
>
> The IETF datatracker status page for this draft is:
> https://datatracker.ietf.org/doc/draft-ietf-pce-stateful-
> sync-optimizations/
>
> There's also a htmlized version available at:
> https://tools.ietf.org/html/draft-ietf-pce-stateful-sync-optimizations-09
>
> A diff from the previous version is available at:
> https://www.ietf.org/rfcdiff?url2=draft-ietf-pce-stateful-
> sync-optimizations-09
>
>
> 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/
>
> _______________________________________________
> Pce mailing list
> Pce@ietf.org
> https://www.ietf.org/mailman/listinfo/pce
>

--94eb2c189b968540010549d9afeb
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div>Dear Authors,<br><br></div>Suggested TLV values confl=
ict with in other PCE drafts. I could find 2 conflicts, there may be more. =
Is there a way the PCE WG can manage TLV values across drafts? For compatib=
ility between vendors and different software release from same vendor - kee=
ping these values unchanged is critical.<br><div><pre>8.3.  STATEFUL-PCE-CA=
PABILITY TLV<br>    <strong><font color=3D"green">TBD11 (suggested</font></=
strong> value 26) TRIGGERED-INITIAL-SYNC    This document<br><strong><font =
color=3D"green">    TBD12 (suggested</font></strong> value 28) TRIGGERED-RE=
SYNC          This document<br><br><br><a href=3D"https://tools.ietf.org/ht=
ml/draft-ietf-pce-segment-routing-08#section-9.4">https://tools.ietf.org/ht=
ml/draft-ietf-pce-segment-routing-08#section-9.4</a> - <br>SR-PCE-CAPABILIT=
Y is 26<br><br><a href=3D"https://tools.ietf.org/html/draft-ietf-pce-lsp-se=
tup-type-03#section-6.1">https://tools.ietf.org/html/draft-ietf-pce-lsp-set=
up-type-03#section-6.1</a><br>PATH-SETUP-TYPE is 28<br><br></pre><pre>Thank=
s,<br></pre><pre>Girish<br></pre></div></div><div class=3D"gmail_extra"><br=
><div class=3D"gmail_quote">On Tue, Feb 28, 2017 at 6:08 AM,  <span dir=3D"=
ltr">&lt;<a href=3D"mailto:internet-drafts@ietf.org" target=3D"_blank">inte=
rnet-drafts@ietf.org</a>&gt;</span> wrote:<br><blockquote class=3D"gmail_qu=
ote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex=
"><br>
A New Internet-Draft is available from the on-line Internet-Drafts director=
ies.<br>
This draft is a work item of the Path Computation Element of the IETF.<br>
<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 Title=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0:=
 Optimizations of Label Switched Path State Synchronization Procedures for =
a Stateful PCE<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 Authors=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0: Edwa=
rd Crabbe<br>
=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 Ina Minei<br>
=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 Jan Medved<br>
=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 Robert Varga<br>
=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 Xian Zhang<br>
=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 Dhruv Dhody<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 Filename=C2=A0 =C2=A0 =C2=A0 =C2=A0 : draft-iet=
f-pce-stateful-sync-<wbr>optimizations-09.txt<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 Pages=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0:=
 25<br>
=C2=A0 =C2=A0 =C2=A0 =C2=A0 Date=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 :=
 2017-02-28<br>
<br>
Abstract:<br>
=C2=A0 =C2=A0A stateful Path Computation Element (PCE) has access to not on=
ly the<br>
=C2=A0 =C2=A0information disseminated by the network&#39;s Interior Gateway=
 Protocol<br>
=C2=A0 =C2=A0(IGP), but also the set of active paths and their reserved res=
ources<br>
=C2=A0 =C2=A0for its computation.=C2=A0 The additional Label Switched Path =
(LSP) state<br>
=C2=A0 =C2=A0information allows the PCE to compute constrained paths while<=
br>
=C2=A0 =C2=A0considering individual LSPs and their interactions.=C2=A0 This=
 requires a<br>
=C2=A0 =C2=A0state synchronization mechanism between the PCE and the networ=
k, PCE<br>
=C2=A0 =C2=A0and path computation clients (PCCs), and between cooperating P=
CEs.<br>
=C2=A0 =C2=A0The basic mechanism for state synchronization is part of the s=
tateful<br>
=C2=A0 =C2=A0PCE specification.=C2=A0 This document presents motivations fo=
r<br>
=C2=A0 =C2=A0optimizations to the base state synchronization procedure and<=
br>
=C2=A0 =C2=A0specifies the required Path Computation Element Communication<=
br>
=C2=A0 =C2=A0Protocol (PCEP) extensions.<br>
<br>
<br>
<br>
The IETF datatracker status page for this draft is:<br>
<a href=3D"https://datatracker.ietf.org/doc/draft-ietf-pce-stateful-sync-op=
timizations/" rel=3D"noreferrer" target=3D"_blank">https://datatracker.ietf=
.org/<wbr>doc/draft-ietf-pce-stateful-<wbr>sync-optimizations/</a><br>
<br>
There&#39;s also a htmlized version available at:<br>
<a href=3D"https://tools.ietf.org/html/draft-ietf-pce-stateful-sync-optimiz=
ations-09" rel=3D"noreferrer" target=3D"_blank">https://tools.ietf.org/html=
/<wbr>draft-ietf-pce-stateful-sync-<wbr>optimizations-09</a><br>
<br>
A diff from the previous version is available at:<br>
<a href=3D"https://www.ietf.org/rfcdiff?url2=3Ddraft-ietf-pce-stateful-sync=
-optimizations-09" rel=3D"noreferrer" target=3D"_blank">https://www.ietf.or=
g/rfcdiff?<wbr>url2=3Ddraft-ietf-pce-stateful-<wbr>sync-optimizations-09</a=
><br>
<br>
<br>
Please note that it may take a couple of minutes from the time of submissio=
n<br>
until the htmlized version and diff are available at <a href=3D"http://tool=
s.ietf.org" rel=3D"noreferrer" target=3D"_blank">tools.ietf.org</a>.<br>
<br>
Internet-Drafts are also available by anonymous FTP at:<br>
<a href=3D"ftp://ftp.ietf.org/internet-drafts/" rel=3D"noreferrer" target=
=3D"_blank">ftp://ftp.ietf.org/internet-<wbr>drafts/</a><br>
<br>
______________________________<wbr>_________________<br>
Pce mailing list<br>
<a href=3D"mailto:Pce@ietf.org">Pce@ietf.org</a><br>
<a href=3D"https://www.ietf.org/mailman/listinfo/pce" rel=3D"noreferrer" ta=
rget=3D"_blank">https://www.ietf.org/mailman/<wbr>listinfo/pce</a><br>
</blockquote></div><br></div>

--94eb2c189b968540010549d9afeb--


From nobody Fri Mar  3 15:55:54 2017
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Cc: pce@ietf.org
Subject: [Pce] pce - Requested session has been scheduled for IETF 98
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Dear Julien Meuric,

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

pce Session 1 (1:30:00)
    Monday, Afternoon Session II 1520-1650
    Room Name: Zurich G size: 115
    ---------------------------------------------
    


Request Information:


---------------------------------------------------------
Working Group Name: Path Computation Element
Area Name: Routing Area
Session Requester: Julien Meuric

Number of Sessions: 1
Length of Session(s):  1.5 Hours
Number of Attendees: 100
Conflicts to Avoid: 
 First Priority: ccamp mpls i2rs spring teas
 Second Priority: sfc rtgwg pals isis ospf idr nfvrg detnet
 Third Priority: roll 6tisch manet lwig bess bfd bier sdnrg


People who must be present:
  JP Vasseur
  Deborah Brungard
  Julien Meuric
  Jonathan Hardwick

Resources Requested:
  Projector in room

Special Requests:
  We&#39;ll use an MPLS slot as a joint session between a few WGs, including PCE.
---------------------------------------------------------


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From: Dhruv Dhody <dhruv.dhody@huawei.com>
To: Girish Birajdar <girish134@gmail.com>, "draft-ietf-pce-stateful-sync-optimizations@ietf.org" <draft-ietf-pce-stateful-sync-optimizations@ietf.org>
Thread-Topic: [Pce] I-D Action: draft-ietf-pce-stateful-sync-optimizations-09.txt
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Date: Sat, 4 Mar 2017 03:25:58 +0000
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Subject: Re: [Pce] I-D Action: draft-ietf-pce-stateful-sync-optimizations-09.txt
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From: "Adrian Farrel" <adrian@olddog.co.uk>
To: "'Dhruv Dhody'" <dhruv.dhody@huawei.com>, "'Girish Birajdar'" <girish134@gmail.com>
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Cc: pce@ietf.org
Subject: [Pce] PCE and codepoints
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This thread is an example of why some of us have ranted *endlessly* at =
the PC working group to STOP PUTTING EXPLICIT VALUES FOR CODEPOINTS IN =
INTERNET-DRAFTS.
=20
Just don't do it. Stop. Now. Take them out?
=20
Why do you do it? It does not help anyone. It makes things bad.
=20
I am sure I even recall the chairs asking editors to take them out. Why =
do we have WG drafts with explicit codepoints in them.
=20
I am beyond frustrated with this :-)
=20
Adrian
=20
From: Pce [mailto:pce-bounces@ietf.org] On Behalf Of Dhruv Dhody
Sent: 04 March 2017 03:26
To: Girish Birajdar; draft-ietf-pce-stateful-sync-optimizations@ietf.org
Cc: pce@ietf.org
Subject: Re: [Pce] I-D Action: =
draft-ietf-pce-stateful-sync-optimizations-09.txt
=20
Hi Girish,=20
=20
(1)    You are comparing two different things -=20
https://tools.ietf.org/html/draft-ietf-pce-stateful-sync-optimizations-09=
#section-8.3
is for bit inside the STATEFUL-PCE-CAPABILITY TLV i.e. bit no 26
where as =
https://tools.ietf.org/html/draft-ietf-pce-segment-routing-08#section-9.3=

is for the TLV Type i.e TLV Type =3D 26
We have done our best to keep the codepoints align across all stateful =
PCE drafts.=20
But note that these are only suggestions and final authority is with =
IANA.=20
=20
(2)    The IANA early allocation [RFC7120] is the best way to make sure =
implementations use the right code points with no confusion.=20
Chairs have done that for the stateful PCE, SR, Initiated and path setup =
type drafts. Those are visible at - =
http://www.iana.org/assignments/pcep/pcep.xhtml.
         As this draft goes to the RFC editor, the IANA would block the =
codepoints for this draft too.
=20
(3)    There is a draft asking for experimental code points in PCEP - =
https://tools.ietf.org/html/draft-dhody-pce-pcep-exp-codepoints-02 ; do =
review and suggest if you find that useful for early experimentation of =
ideas.=20
=20
Thanks!=20
Dhruv
=20
From: Pce [mailto:pce-bounces@ietf.org] On Behalf Of Girish Birajdar
Sent: 04 March 2017 02:20
To: draft-ietf-pce-stateful-sync-optimizations@ietf.org
Cc: pce@ietf.org
Subject: Re: [Pce] I-D Action: =
draft-ietf-pce-stateful-sync-optimizations-09.txt
=20
Dear Authors,
Suggested TLV values conflict with in other PCE drafts. I could find 2 =
conflicts, there may be more. Is there a way the PCE WG can manage TLV =
values across drafts? For compatibility between vendors and different =
software release from same vendor - keeping these values unchanged is =
critical.
8.3.  STATEFUL-PCE-CAPABILITY TLV
    TBD11 (suggested value 26) TRIGGERED-INITIAL-SYNC    This document
    TBD12 (suggested value 28) TRIGGERED-RESYNC          This document


https://tools.ietf.org/html/draft-ietf-pce-segment-routing-08#section-9.4=
 -=20
SR-PCE-CAPABILITY is 26

https://tools.ietf.org/html/draft-ietf-pce-lsp-setup-type-03#section-6.1
PATH-SETUP-TYPE is 28
Thanks,
Girish
=20
On Tue, Feb 28, 2017 at 6:08 AM, <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 Path Computation Element of the IETF.

        Title           : Optimizations of Label Switched Path State =
Synchronization Procedures for a Stateful PCE
        Authors         : Edward Crabbe
                          Ina Minei
                          Jan Medved
                          Robert Varga
                          Xian Zhang
                          Dhruv Dhody
        Filename        : =
draft-ietf-pce-stateful-sync-optimizations-09.txt
        Pages           : 25
        Date            : 2017-02-28

Abstract:
   A stateful Path Computation Element (PCE) has access to not only the
   information disseminated by the network's Interior Gateway Protocol
   (IGP), but also the set of active paths and their reserved resources
   for its computation.  The additional Label Switched Path (LSP) state
   information allows the PCE to compute constrained paths while
   considering individual LSPs and their interactions.  This requires a
   state synchronization mechanism between the PCE and the network, PCE
   and path computation clients (PCCs), and between cooperating PCEs.
   The basic mechanism for state synchronization is part of the stateful
   PCE specification.  This document presents motivations for
   optimizations to the base state synchronization procedure and
   specifies the required Path Computation Element Communication
   Protocol (PCEP) extensions.



The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-pce-stateful-sync-optimizatio=
ns/

There's also a htmlized version available at:
https://tools.ietf.org/html/draft-ietf-pce-stateful-sync-optimizations-09=


A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=3Ddraft-ietf-pce-stateful-sync-optimiza=
tions-09


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/

_______________________________________________
Pce mailing list
Pce@ietf.org
https://www.ietf.org/mailman/listinfo/pce
=20

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<o:shapedefaults v:ext=3D"edit" spidmax=3D"1026" />
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<o:shapelayout v:ext=3D"edit">
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</o:shapelayout></xml><![endif]--></head><body lang=3DEN-GB link=3Dblue =
vlink=3Dpurple style=3D'tab-interval:36.0pt'><div =
class=3DWordSection1><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-=
font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D'>This thread is an example of why some of us have =
ranted *endlessly* at the PC working group to STOP PUTTING EXPLICIT =
VALUES FOR CODEPOINTS IN INTERNET-DRAFTS.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-=
font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-=
font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D'>Just don't do it. Stop. Now. Take them =
out?<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-=
font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-=
font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D'>Why do you do it? It does not help anyone. It =
makes things bad.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-=
font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-=
font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D'>I am sure I even recall the chairs asking editors =
to take them out. Why do we have WG drafts with explicit codepoints in =
them.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-=
font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-=
font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D'>I am beyond frustrated with this =
:-)<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-=
font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-=
font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D'>Adrian<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-=
font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";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 #B5C4DF =
1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=3DMsoNormal><b><span =
lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-fareast-f=
ont-family:"Times New =
Roman";mso-ansi-language:EN-US'>From:</span></b><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-fareast-f=
ont-family:"Times New Roman";mso-ansi-language:EN-US'> Pce =
[mailto:pce-bounces@ietf.org] <b>On Behalf Of </b>Dhruv =
Dhody<br><b>Sent:</b> 04 March 2017 03:26<br><b>To:</b> Girish Birajdar; =
draft-ietf-pce-stateful-sync-optimizations@ietf.org<br><b>Cc:</b> =
pce@ietf.org<br><b>Subject:</b> Re: [Pce] I-D Action: =
draft-ietf-pce-stateful-sync-optimizations-09.txt<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'font-size:11.0pt;font-family:"Calibri =
Light","sans-serif";color:#1F497D;mso-ansi-language:EN-US;mso-fareast-lan=
guage:ZH-CN'>Hi Girish, <o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US style=3D'font-size:11.0pt;font-family:"Calibri =
Light","sans-serif";color:#1F497D;mso-ansi-language:EN-US;mso-fareast-lan=
guage:ZH-CN'><o:p>&nbsp;</o:p></span></p><p class=3DMsoListParagraph =
style=3D'margin-left:18.0pt;text-indent:-18.0pt'><span lang=3DEN-US =
style=3D'font-size:11.0pt;font-family:"Calibri =
Light","sans-serif";color:#1F497D;mso-ansi-language:EN-US;mso-fareast-lan=
guage:ZH-CN'>(1)</span><span lang=3DEN-US =
style=3D'font-size:7.0pt;font-family:"Times New =
Roman","serif";color:#1F497D;mso-ansi-language:EN-US;mso-fareast-language=
:ZH-CN'>&nbsp;&nbsp;&nbsp; </span><span lang=3DEN-US =
style=3D'font-size:11.0pt;font-family:"Calibri =
Light","sans-serif";color:#1F497D;mso-ansi-language:EN-US;mso-fareast-lan=
guage:ZH-CN'>You are comparing two different things - =
<o:p></o:p></span></p><p class=3DMsoListParagraph =
style=3D'margin-left:18.0pt;text-indent:0cm'><span lang=3DEN-US =
style=3D'font-size:11.0pt;font-family:"Calibri =
Light","sans-serif";color:#1F497D;mso-ansi-language:EN-US;mso-fareast-lan=
guage:ZH-CN'><a =
href=3D"https://tools.ietf.org/html/draft-ietf-pce-stateful-sync-optimiza=
tions-09#section-8.3">https://tools.ietf.org/html/draft-ietf-pce-stateful=
-sync-optimizations-09#section-8.3</a><o:p></o:p></span></p><p =
class=3DMsoListParagraph =
style=3D'margin-left:18.0pt;text-indent:0cm'><span lang=3DEN-US =
style=3D'font-size:11.0pt;font-family:"Calibri =
Light","sans-serif";color:#1F497D;mso-ansi-language:EN-US;mso-fareast-lan=
guage:ZH-CN'>is for bit inside the STATEFUL-PCE-CAPABILITY TLV i.e. bit =
no 26<o:p></o:p></span></p><p class=3DMsoListParagraph =
style=3D'margin-left:18.0pt;text-indent:0cm'><span lang=3DEN-US =
style=3D'font-size:11.0pt;font-family:"Calibri =
Light","sans-serif";color:#1F497D;mso-ansi-language:EN-US;mso-fareast-lan=
guage:ZH-CN'>where as <a =
href=3D"https://tools.ietf.org/html/draft-ietf-pce-segment-routing-08#sec=
tion-9.3">https://tools.ietf.org/html/draft-ietf-pce-segment-routing-08#s=
ection-9.3</a><o:p></o:p></span></p><p class=3DMsoListParagraph =
style=3D'margin-left:18.0pt;text-indent:0cm'><span lang=3DEN-US =
style=3D'font-size:11.0pt;font-family:"Calibri =
Light","sans-serif";color:#1F497D;mso-ansi-language:EN-US;mso-fareast-lan=
guage:ZH-CN'>is for the TLV Type i.e TLV Type =3D =
26<o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'text-indent:18.0pt'><span lang=3DEN-US =
style=3D'font-size:11.0pt;font-family:"Calibri =
Light","sans-serif";color:#1F497D;mso-ansi-language:EN-US;mso-fareast-lan=
guage:ZH-CN'>We have done our best to keep the codepoints align across =
all stateful PCE drafts. <o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'text-indent:18.0pt'><span lang=3DEN-US =
style=3D'font-size:11.0pt;font-family:"Calibri =
Light","sans-serif";color:#1F497D;mso-ansi-language:EN-US;mso-fareast-lan=
guage:ZH-CN'>But note that these are only suggestions and final =
authority is with IANA. <o:p></o:p></span></p><p =
class=3DMsoListParagraph =
style=3D'margin-left:18.0pt;text-indent:0cm'><span lang=3DEN-US =
style=3D'font-size:11.0pt;font-family:"Calibri =
Light","sans-serif";color:#1F497D;mso-ansi-language:EN-US;mso-fareast-lan=
guage:ZH-CN'><o:p>&nbsp;</o:p></span></p><p class=3DMsoListParagraph =
style=3D'margin-left:18.0pt;text-indent:-18.0pt'><span lang=3DEN-US =
style=3D'font-size:11.0pt;font-family:"Calibri =
Light","sans-serif";color:#1F497D;mso-ansi-language:EN-US;mso-fareast-lan=
guage:ZH-CN'>(2)</span><span lang=3DEN-US =
style=3D'font-size:7.0pt;font-family:"Times New =
Roman","serif";color:#1F497D;mso-ansi-language:EN-US;mso-fareast-language=
:ZH-CN'>&nbsp;&nbsp;&nbsp; </span><span lang=3DEN-US =
style=3D'font-size:11.0pt;font-family:"Calibri =
Light","sans-serif";color:#1F497D;mso-ansi-language:EN-US;mso-fareast-lan=
guage:ZH-CN'>The IANA early allocation [RFC7120] is the best way to make =
sure implementations use the right code points with no confusion. =
<o:p></o:p></span></p><p class=3DMsoListParagraph =
style=3D'margin-left:18.0pt;text-indent:0cm'><span lang=3DEN-US =
style=3D'font-size:11.0pt;font-family:"Calibri =
Light","sans-serif";color:#1F497D;mso-ansi-language:EN-US;mso-fareast-lan=
guage:ZH-CN'>Chairs have done that for the stateful PCE, SR, Initiated =
and path setup type drafts. Those are visible at - <a =
href=3D"http://www.iana.org/assignments/pcep/pcep.xhtml">http://www.iana.=
org/assignments/pcep/pcep.xhtml</a>.<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:11.0pt;font-family:"Calibri =
Light","sans-serif";color:#1F497D;mso-ansi-language:EN-US;mso-fareast-lan=
guage:ZH-CN'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; As this =
draft goes to the RFC editor, the IANA would block the codepoints for =
this draft too.<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US style=3D'font-size:11.0pt;font-family:"Calibri =
Light","sans-serif";color:#1F497D;mso-ansi-language:EN-US;mso-fareast-lan=
guage:ZH-CN'><o:p>&nbsp;</o:p></span></p><p class=3DMsoListParagraph =
style=3D'margin-left:18.0pt;text-indent:-18.0pt'><span lang=3DEN-US =
style=3D'font-size:11.0pt;font-family:"Calibri =
Light","sans-serif";color:#1F497D;mso-ansi-language:EN-US;mso-fareast-lan=
guage:ZH-CN'>(3)</span><span lang=3DEN-US =
style=3D'font-size:7.0pt;font-family:"Times New =
Roman","serif";color:#1F497D;mso-ansi-language:EN-US;mso-fareast-language=
:ZH-CN'>&nbsp;&nbsp;&nbsp; </span><span lang=3DEN-US =
style=3D'font-size:11.0pt;font-family:"Calibri =
Light","sans-serif";color:#1F497D;mso-ansi-language:EN-US;mso-fareast-lan=
guage:ZH-CN'>There is a draft asking for experimental code points in =
PCEP - <a =
href=3D"https://tools.ietf.org/html/draft-dhody-pce-pcep-exp-codepoints-0=
2">https://tools.ietf.org/html/draft-dhody-pce-pcep-exp-codepoints-02</a>=
 ; do review and suggest if you find that useful for early =
experimentation of ideas. <o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:11.0pt;font-family:"Calibri =
Light","sans-serif";color:#1F497D;mso-ansi-language:EN-US;mso-fareast-lan=
guage:ZH-CN'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US style=3D'font-size:11.0pt;font-family:"Calibri =
Light","sans-serif";color:#1F497D;mso-ansi-language:EN-US;mso-fareast-lan=
guage:ZH-CN'>Thanks! <o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US style=3D'font-size:11.0pt;font-family:"Calibri =
Light","sans-serif";color:#1F497D;mso-ansi-language:EN-US;mso-fareast-lan=
guage:ZH-CN'>Dhruv<o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-US style=3D'font-size:11.0pt;font-family:"Calibri =
Light","sans-serif";color:#1F497D;mso-ansi-language:EN-US;mso-fareast-lan=
guage:ZH-CN'><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 =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-ansi-lan=
guage:EN-US;mso-fareast-language:ZH-CN'>From:</span></b><span =
lang=3DEN-US =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-ansi-lan=
guage:EN-US;mso-fareast-language:ZH-CN'> Pce =
[mailto:pce-bounces@ietf.org] <b>On Behalf Of </b>Girish =
Birajdar<br><b>Sent:</b> 04 March 2017 02:20<br><b>To:</b> =
draft-ietf-pce-stateful-sync-optimizations@ietf.org<br><b>Cc:</b> =
pce@ietf.org<br><b>Subject:</b> Re: [Pce] I-D Action: =
draft-ietf-pce-stateful-sync-optimizations-09.txt<o:p></o:p></span></p></=
div></div><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'mso-ansi-language:EN-US;mso-fareast-language:ZH-CN'><o:p>&nbsp;<=
/o:p></span></p><div><div><p class=3DMsoNormal =
style=3D'margin-bottom:12.0pt'><span lang=3DEN-US =
style=3D'mso-ansi-language:EN-US;mso-fareast-language:ZH-CN'>Dear =
Authors,<o:p></o:p></span></p></div><p class=3DMsoNormal><span =
lang=3DEN-US =
style=3D'mso-ansi-language:EN-US;mso-fareast-language:ZH-CN'>Suggested =
TLV values conflict with in other PCE drafts. I could find 2 conflicts, =
there may be more. Is there a way the PCE WG can manage TLV values =
across drafts? For compatibility between vendors and different software =
release from same vendor - keeping these values unchanged is =
critical.<o:p></o:p></span></p><div><pre =
style=3D'margin-bottom:12.0pt'><span lang=3DEN-US =
style=3D'mso-ansi-language:EN-US;mso-fareast-language:ZH-CN'>8.3.&nbsp; =
STATEFUL-PCE-CAPABILITY TLV<br>&nbsp;&nbsp;&nbsp; <strong><span =
style=3D'font-family:SimSun;mso-bidi-font-family:"Courier =
New";color:green'>TBD11 (suggested</span></strong> value 26) =
TRIGGERED-INITIAL-SYNC&nbsp;&nbsp;&nbsp; This document<br><strong><span =
style=3D'font-family:SimSun;mso-bidi-font-family:"Courier =
New";color:green'>&nbsp;&nbsp;&nbsp; TBD12 (suggested</span></strong> =
value 28) =
TRIGGERED-RESYNC&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
This document<br><br><br><a =
href=3D"https://tools.ietf.org/html/draft-ietf-pce-segment-routing-08#sec=
tion-9.4">https://tools.ietf.org/html/draft-ietf-pce-segment-routing-08#s=
ection-9.4</a> - <br>SR-PCE-CAPABILITY is 26<br><br><a =
href=3D"https://tools.ietf.org/html/draft-ietf-pce-lsp-setup-type-03#sect=
ion-6.1">https://tools.ietf.org/html/draft-ietf-pce-lsp-setup-type-03#sec=
tion-6.1</a><br>PATH-SETUP-TYPE is 28<o:p></o:p></span></pre><pre><span =
lang=3DEN-US =
style=3D'mso-ansi-language:EN-US;mso-fareast-language:ZH-CN'>Thanks,<o:p>=
</o:p></span></pre><pre><span lang=3DEN-US =
style=3D'mso-ansi-language:EN-US;mso-fareast-language:ZH-CN'>Girish<o:p><=
/o:p></span></pre></div></div><div><p class=3DMsoNormal><span =
lang=3DEN-US =
style=3D'mso-ansi-language:EN-US;mso-fareast-language:ZH-CN'><o:p>&nbsp;<=
/o:p></span></p><div><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'mso-ansi-language:EN-US;mso-fareast-language:ZH-CN'>On Tue, Feb =
28, 2017 at 6:08 AM, &lt;<a href=3D"mailto:internet-drafts@ietf.org" =
target=3D"_blank">internet-drafts@ietf.org</a>&gt; =
wrote:<o:p></o:p></span></p><blockquote =
style=3D'border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm =
6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0cm;margin-bottom:5=
.0pt'><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'mso-ansi-language:EN-US;mso-fareast-language:ZH-CN'><br>A New =
Internet-Draft is available from the on-line Internet-Drafts =
directories.<br>This draft is a work item of the Path Computation =
Element of the IETF.<br><br>&nbsp; &nbsp; &nbsp; &nbsp; Title&nbsp; =
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;: Optimizations of Label Switched Path =
State Synchronization Procedures for a Stateful PCE<br>&nbsp; &nbsp; =
&nbsp; &nbsp; Authors&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;: Edward =
Crabbe<br>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; =
&nbsp; &nbsp; &nbsp; &nbsp; Ina Minei<br>&nbsp; &nbsp; &nbsp; &nbsp; =
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Jan =
Medved<br>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; =
&nbsp; &nbsp; &nbsp; &nbsp; Robert Varga<br>&nbsp; &nbsp; &nbsp; &nbsp; =
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Xian =
Zhang<br>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; =
&nbsp; &nbsp; &nbsp; &nbsp; Dhruv Dhody<br>&nbsp; &nbsp; &nbsp; &nbsp; =
Filename&nbsp; &nbsp; &nbsp; &nbsp; : =
draft-ietf-pce-stateful-sync-optimizations-09.txt<br>&nbsp; &nbsp; =
&nbsp; &nbsp; Pages&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;: =
25<br>&nbsp; &nbsp; &nbsp; &nbsp; Date&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; =
&nbsp; : 2017-02-28<br><br>Abstract:<br>&nbsp; &nbsp;A stateful Path =
Computation Element (PCE) has access to not only the<br>&nbsp; =
&nbsp;information disseminated by the network's Interior Gateway =
Protocol<br>&nbsp; &nbsp;(IGP), but also the set of active paths and =
their reserved resources<br>&nbsp; &nbsp;for its computation.&nbsp; The =
additional Label Switched Path (LSP) state<br>&nbsp; &nbsp;information =
allows the PCE to compute constrained paths while<br>&nbsp; =
&nbsp;considering individual LSPs and their interactions.&nbsp; This =
requires a<br>&nbsp; &nbsp;state synchronization mechanism between the =
PCE and the network, PCE<br>&nbsp; &nbsp;and path computation clients =
(PCCs), and between cooperating PCEs.<br>&nbsp; &nbsp;The basic =
mechanism for state synchronization is part of the stateful<br>&nbsp; =
&nbsp;PCE specification.&nbsp; This document presents motivations =
for<br>&nbsp; &nbsp;optimizations to the base state synchronization =
procedure and<br>&nbsp; &nbsp;specifies the required Path Computation =
Element Communication<br>&nbsp; &nbsp;Protocol (PCEP) =
extensions.<br><br><br><br>The IETF datatracker status page for this =
draft is:<br><a =
href=3D"https://datatracker.ietf.org/doc/draft-ietf-pce-stateful-sync-opt=
imizations/" =
target=3D"_blank">https://datatracker.ietf.org/doc/draft-ietf-pce-statefu=
l-sync-optimizations/</a><br><br>There's also a htmlized version =
available at:<br><a =
href=3D"https://tools.ietf.org/html/draft-ietf-pce-stateful-sync-optimiza=
tions-09" =
target=3D"_blank">https://tools.ietf.org/html/draft-ietf-pce-stateful-syn=
c-optimizations-09</a><br><br>A diff from the previous version is =
available at:<br><a =
href=3D"https://www.ietf.org/rfcdiff?url2=3Ddraft-ietf-pce-stateful-sync-=
optimizations-09" =
target=3D"_blank">https://www.ietf.org/rfcdiff?url2=3Ddraft-ietf-pce-stat=
eful-sync-optimizations-09</a><br><br><br>Please note that it may take a =
couple of minutes from the time of submission<br>until the htmlized =
version and diff are available at <a href=3D"http://tools.ietf.org" =
target=3D"_blank">tools.ietf.org</a>.<br><br>Internet-Drafts are also =
available by anonymous FTP at:<br><a =
href=3D"ftp://ftp.ietf.org/internet-drafts/" =
target=3D"_blank">ftp://ftp.ietf.org/internet-drafts/</a><br><br>________=
_______________________________________<br>Pce mailing list<br><a =
href=3D"mailto:Pce@ietf.org">Pce@ietf.org</a><br><a =
href=3D"https://www.ietf.org/mailman/listinfo/pce" =
target=3D"_blank">https://www.ietf.org/mailman/listinfo/pce</a><o:p></o:p=
></span></p></blockquote></div><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'mso-ansi-language:EN-US;mso-fareast-language:ZH-CN'><o:p>&nbsp;<=
/o:p></span></p></div></div></div></div></body></html>
------=_NextPart_000_027D_01D294D1.89E15F50--



From nobody Sat Mar  4 09:42:19 2017
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Subject: [Pce] I-D Action: draft-ietf-pce-pce-initiated-lsp-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 Path Computation Element of the IETF.

        Title           : PCEP Extensions for PCE-initiated LSP Setup in a Stateful PCE Model
        Authors         : Edward Crabbe
                          Ina Minei
                          Siva Sivabalan
                          Robert Varga
	Filename        : draft-ietf-pce-pce-initiated-lsp-08.txt
	Pages           : 18
	Date            : 2017-03-04

Abstract:
   The Path Computation Element Communication Protocol (PCEP) provides
   mechanisms for Path Computation Elements (PCEs) to perform path
   computations in response to Path Computation Clients (PCCs) requests.

   The extensions for stateful PCE provide active control of
   Multiprotocol Label Switching (MPLS) Traffic Engineering Label
   Switched Paths (TE LSP) via PCEP, for a model where the PCC delegates
   control over one or more locally configured LSPs to the PCE.  This
   document describes the creation and deletion of PCE-initiated LSPs
   under the stateful PCE model.



The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-pce-pce-initiated-lsp/

There's also a htmlized version available at:
https://tools.ietf.org/html/draft-ietf-pce-pce-initiated-lsp-08

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-pce-pce-initiated-lsp-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/


From nobody Tue Mar  7 08:20:42 2017
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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 Path Computation Element of the IETF.

        Title           : PCEP Extensions for PCE-initiated LSP Setup in a Stateful PCE Model
        Authors         : Edward Crabbe
                          Ina Minei
                          Siva Sivabalan
                          Robert Varga
	Filename        : draft-ietf-pce-pce-initiated-lsp-09.txt
	Pages           : 18
	Date            : 2017-03-07

Abstract:
   The Path Computation Element Communication Protocol (PCEP) provides
   mechanisms for Path Computation Elements (PCEs) to perform path
   computations in response to Path Computation Clients (PCCs) requests.

   The extensions for stateful PCE provide active control of
   Multiprotocol Label Switching (MPLS) Traffic Engineering Label
   Switched Paths (TE LSP) via PCEP, for a model where the PCC delegates
   control over one or more locally configured LSPs to the PCE.  This
   document describes the creation and deletion of PCE-initiated LSPs
   under the stateful PCE model.



The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-pce-pce-initiated-lsp/

There's also a htmlized version available at:
https://tools.ietf.org/html/draft-ietf-pce-pce-initiated-lsp-09

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-pce-pce-initiated-lsp-09


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/


From nobody Tue Mar  7 09:27:53 2017
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From: Jonathan Hardwick <Jonathan.Hardwick@metaswitch.com>
To: "draft-ietf-pce-inter-area-as-applicability@ietf.org" <draft-ietf-pce-inter-area-as-applicability@ietf.org>
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Subject: [Pce] Shepherd's review of draft-ietf-pce-inter-area-as-applicability-06
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Hello

I am shepherding this draft, which has passed working group last call and i=
s in the queue for sending to the IESG.  I have reviewed it to determine wh=
ether it really is ready to be submitted to the IESG.  This draft is an imp=
ortant piece of work for the PCE working group and I would like to thank th=
e authors for all their work on it so far, but unfortunately I don't think =
it is ready for publication yet.  Probably the biggest impediment to gettin=
g drafts through the IESG is when the drafts lack clarity, and I feel that =
more clarity needs to be brought to this draft before we take it forward.

My comments are below.

Best regards
Jon


General Comments
This document does an important job in explaining how PCEs can best be used=
 to solve problems in inter-domain path computation.  It is thorough and co=
vers all the appropriate areas.

The document seems repetitive and a bit bloated by text that is not really =
relevant to the main purpose of the doc.  Some parts of the text feel redun=
dant (I have pointed them out explicitly below).  Other parts of the text r=
epeat statements that have already been made, or else just repeat informati=
on from other documents.  I have pointed out as many examples of this as I =
can below but I would like the authors to review their text themselves and =
try to remove the redundant bits of text.

Some sections of this document waffle without making a clear point about in=
ter-domain path computation.  I've made specific comments below about passa=
ges that I feel lack a clear point.  But please could the authors review th=
eir own text?  The document needs to succinctly describe problems in inter-=
domain path computation and point out the ways a PCE can help solve them.  =
If there are any parts of this document that do not fulfil that brief, plea=
se consider removing them.

Some sections of the document need to be reviewed by an English speaker for=
 grammar and clarity.  I made quite a few comments below to clarify sentenc=
es and improve the grammar, but I ran out of steam at around section 6.  Pl=
ease could one of the English speaking authors finish off the job?

=20
Section 1
s/remotely initiated PCE, deployment scenarios/remotely initiated PCE deplo=
yment scenarios/
s/it maybe necessary/it may be necessary/
" Once a path computation request is received, the PCC will send a request =
to the PCE. "  Sentence feels redundant.
s/The PCE discovery mechanism [...] allow/The PCE discovery mechanism [...]=
 allows/
s/An Objective Function [...] specify the/An Objective Function [...] speci=
fies the/
Section 1.6, I don't think you need to list all the OFs in RFC 5541, there'=
s nothing special about them.

Section 3
s/administered by separate Service Providers, it would break/administered b=
y separate Service Providers.  It would break/
s/ different Service Providers. Then cooperating PCEs/ different Service Pr=
oviders, then cooperating PCEs/
s/ it can supply this information/ it can supply the destination domain/
s/egress domain/destination domain/

Section 4
Please define " simply-connected " or expand the term.  I think you mean "c=
onnected in a simple path with no branches and single links between all dom=
ains".
Section 4.2 text duplicates the text in section 3.1 1st paragraph. Please d=
elete one of them.
s/ are composed by/ are composed of/
s/ are usually interconnected between them/ are usually interconnected/

OLD
A typical node degree ranges from 3 to 10 (4-5 is quite common), being the =
node degree the number of neighbors per node.
NEW
The node degree (the number of neighbors per node) typically ranges from 3 =
to 10 (4-5 is quite common).

Second paragraph of 4.3 "Networks are sometimes..." is redundant.  It has a=
ll been said already.
s/ Whenever an specific/ Whenever a specific/

Section 4.4 Again it feels like all of this has been said in section 3.1 al=
ready, except the bit about SRLGs.  I suggest combining these bits of text.=
  Perhaps section 3.1 should be removed.

Section 4.5 "A non-comprehensive list" Is it important to give this list?  =
It seems to add nothing to the existing reference to RFC5540/6007 - suggest=
 removing it.

s/ reach the destination domain, a domain sequence/ reach the destination d=
omain.  A domain sequence/
s/ is defined in [RFC3209], [RFC7897] specifies new/ is defined in [RFC3209=
].  [RFC7897] specifies new/

Section 5
5.1.1 " [RFC5441] provides a more optimal method to specify inclusion or ex=
clusion of an ABR" - this is the BRPC RFC.  It computes a more optimal path=
 in general.  But please can you clarify how it optimizes " inclusion or ex=
clusion of an ABR "?
s/ an area must be include or exclude from/ an area must be included or exc=
luded from/
s/ the indication of if a strict/ the indication of whether a strict/
s/ to compute diverse across/ to compute diverse paths across/
5.1.3 What point are you making by listing these types of diversity?=20

Section 5.2 - I don't understand what point this section is making.  I thin=
k it says that an operator may know an intra-area path exists, but then req=
uests an inter-area path anyway, but then looks at the response and says "I=
 don't like some of those areas" and so uses the intra-area path instead.  =
Really?  I would have thought that they would just use the intra-area path =
in the first place.  Also this section seems to imply that the PCE provides=
 the area / AS IDs in the returned ERO, which I do not believe is the case.

Section 6
There are several mistakes in English in this section.  I started listing t=
hem but ran out of time.  Please have an English speaker review and overhau=
l it.
6.1.1 I can't tell what this section is trying to say.  Please make the poi=
nt clearly.

Section 7
Ditto - many English mistakes in this section.
All the text in the first part of section 7 (before 7.1 starts) is redundan=
t, i.e. has been said already.  Please take it out.
7.1 " It could be helpful " ... this is too wishy-washy.  Helpful under wha=
t circumstances?
" the TED must be populated. Inter-as connectivity information may be popul=
ated "  I think you mean MUST and MAY.  This sentence is in the passive voi=
ce which makes it hard to understand which entity must take the described a=
ction.  I.e. which entity populates that TED?
7.1 This section is unclear.  What point is it trying to make?  I think I c=
an see two points in the text, but they are entangled and obscure.  The fir=
st point is that the TED may be provided by a variety of sources.  The seco=
nd point is that, when the IGPs provide the TED, they do not provide inform=
ation on inter-AS TE and therefore this information must come from another =
source.  Please separate your points and make them clearly.

7.1.1 " As PCE algorithms rely on information contained in the TED " - redu=
ndant, delete.
7.1.1 Final paragraph - as these LSPs are static, why can't they be provisi=
oned statically in the TED?

What happened to section 7.2?

7.3 " The management based solutions could also be used in conjunction with=
 the BRPC algorithm."  I think what you are saying here is that BRPC may be=
 used to pre-plan an AS sequence whereas the actual path within domains is =
not pre-planned and is instead computed using per-domain computation.  Plea=
se clarify.
7.3 This section ought to point out that in an inter-domain path, the opera=
tors of each domain must agree to what extent paths must be pre-planned and=
 manually controlled.

7.4 What point is this section making?  That has not already been said in R=
FC 5152?
s/RFC6805]/[RFC6805]

7.5 How is this different to 7.4?  Note that per-domain path computation is=
 also "co-operative PCEs".

7.6 This section just repeats material from RFC 6805 so seems redundant in =
this document.

Section 8
Most of the introduction repeats points already made by the document and do=
esn't need to be said again.  The introduction to s8 should say something l=
ike this.
NEW=20
   This section discusses the techniques that co-operating PCEs
   can use to compute inter-domain paths without each domain
   disclosing sensitive internal topology information (such as
   explicit nodes or links within the domain) to the other domains."

s/allows explicit route information to used/allows explicit route informati=
on to be used/

Section 10
s/path that satisfies/paths that satisfy/
I would retire the section heading for 10.1 and just make section 10 one fl=
at section.

Section 11
"Deployment of policy should also consider the need to be sensitive to comm=
ercial and reliability  information about domains and the interactions of s=
ervices crossing  domains."  What does that mean?  i.e. who needs to consid=
er this, what exactly are they considering, what do they do about it, and h=
ow does it relate to PCE?

Section 12
Overlaps and duplicates significantly with section 7, especially section 7.=
1.  Please combine the information in these sections.

Section 13
"section 8.4 of [RFC5440] and will not be repeated here." Is this stray tex=
t?  Delete it?

Sections 13.3 and 13.4 appear out of order (they appear after section 14).
Section 13.4 mentions security procedures - this should be done in section =
14.
Otherwise, section 13.4 just repeats stuff from RFC 5440 - not necessary.  =
Please delete it unless there is something specific to say about the inter-=
AS case.
Section 13.5 Just repeats stuff from RFC 5440 - not necessary.  Please dele=
te it unless there is something specific to say about the inter-AS case.

Section 14
I think this section should also talk about how to establish the trust rela=
tionship between domains and how PCEs can authenticate with each other.


From nobody Tue Mar  7 11:23:56 2017
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From: Huaimo Chen <huaimo.chen@huawei.com>
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Hi Everyone,

    The following is a summary of comments received during/after IETF 97 wi=
th responses.

Comments 1. Link id. Even though there is no IGP, I think that the user may=
 still configure the link ID, which can be uint32. It is the user's (or man=
agement system's) responsibility to make sure the number is not conflict wi=
th the other TE link IDs.
[Response]: We will update the draft accordingly.

Comments 2. Do you want to include SRLG also?
[Response]: Yes, we will add some text to include SRLG.

Comments 3. Can you change the title of the draft to Static PCEP Link State=
?
[Response]: We will consider this.

Best Regards,
Huaimo

--_000_5316A0AB3C851246A7CA5758973207D450149753SJCEML703CHMchi_
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<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt">Hi Everyone,<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">&nbsp;&nbsp;&nbsp; =
The following is a summary of comments received during/after IETF 97 with r=
esponses.<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">Comments 1. Link id. Even though there is no IGP, I =
think that the user may still configure the link ID, which can be uint32. I=
t is the user's (or management system's) responsibility to make sure the nu=
mber is not conflict with the other
 TE link IDs.<o:p></o:p></p>
<p class=3D"MsoNormal">[Response]: We will update the draft accordingly.<o:=
p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Comments 2. Do you want to include SRLG also?<o:p></=
o:p></p>
<p class=3D"MsoNormal">[Response]: Yes, we will add some text to include SR=
LG.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Comments 3. Can you change the title of the draft to=
 Static PCEP Link State?<o:p></o:p></p>
<p class=3D"MsoNormal">[Response]: We will consider this.<span style=3D"fon=
t-size:
12.0pt"><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">Best Regards,<o:p><=
/o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt">Huaimo<o:p></o:p></=
span></p>
</div>
</body>
</html>

--_000_5316A0AB3C851246A7CA5758973207D450149753SJCEML703CHMchi_--


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From: Quintin zhao <quintin.zhao@huawei.com>
To: Jonathan Hardwick <Jonathan.Hardwick@metaswitch.com>
Thread-Topic: [Pce] Shepherd's review of draft-ietf-pce-inter-area-as-applicability-06
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Hi Jon,=20

Great, a good review! This is really helpful. Will finalize the document ba=
sed on your comments, and most recent updates from Dhruv. Our plan is to su=
bmit the new version very quickly. We will find someone to perform a final =
English review as you suggest.=20

Thanks!
Quintin, and authors.


------------------------------

Message: 2
Date: Tue, 7 Mar 2017 17:27:43 +0000
From: Jonathan Hardwick <Jonathan.Hardwick@metaswitch.com>
To: "draft-ietf-pce-inter-area-as-applicability@ietf.org"
	<draft-ietf-pce-inter-area-as-applicability@ietf.org>
Cc: "pce@ietf.org" <pce@ietf.org>
Subject: [Pce] Shepherd's review of
	draft-ietf-pce-inter-area-as-applicability-06
Message-ID:
	<BY2PR0201MB191030B5DE7C3A8A3B370B22842F0@BY2PR0201MB1910.namprd02.prod.ou=
tlook.com>
=09
Content-Type: text/plain; charset=3D"us-ascii"

Hello

I am shepherding this draft, which has passed working group last call and i=
s in the queue for sending to the IESG.  I have reviewed it to determine wh=
ether it really is ready to be submitted to the IESG.  This draft is an imp=
ortant piece of work for the PCE working group and I would like to thank th=
e authors for all their work on it so far, but unfortunately I don't think =
it is ready for publication yet.  Probably the biggest impediment to gettin=
g drafts through the IESG is when the drafts lack clarity, and I feel that =
more clarity needs to be brought to this draft before we take it forward.

My comments are below.

Best regards
Jon


General Comments
This document does an important job in explaining how PCEs can best be used=
 to solve problems in inter-domain path computation.  It is thorough and co=
vers all the appropriate areas.

The document seems repetitive and a bit bloated by text that is not really =
relevant to the main purpose of the doc.  Some parts of the text feel redun=
dant (I have pointed them out explicitly below).  Other parts of the text r=
epeat statements that have already been made, or else just repeat informati=
on from other documents.  I have pointed out as many examples of this as I =
can below but I would like the authors to review their text themselves and =
try to remove the redundant bits of text.

Some sections of this document waffle without making a clear point about in=
ter-domain path computation.  I've made specific comments below about passa=
ges that I feel lack a clear point.  But please could the authors review th=
eir own text?  The document needs to succinctly describe problems in inter-=
domain path computation and point out the ways a PCE can help solve them.  =
If there are any parts of this document that do not fulfil that brief, plea=
se consider removing them.

Some sections of the document need to be reviewed by an English speaker for=
 grammar and clarity.  I made quite a few comments below to clarify sentenc=
es and improve the grammar, but I ran out of steam at around section 6.  Pl=
ease could one of the English speaking authors finish off the job?

=20
Section 1
s/remotely initiated PCE, deployment scenarios/remotely initiated PCE deplo=
yment scenarios/
s/it maybe necessary/it may be necessary/
" Once a path computation request is received, the PCC will send a request =
to the PCE. "  Sentence feels redundant.
s/The PCE discovery mechanism [...] allow/The PCE discovery mechanism [...]=
 allows/
s/An Objective Function [...] specify the/An Objective Function [...] speci=
fies the/
Section 1.6, I don't think you need to list all the OFs in RFC 5541, there'=
s nothing special about them.

Section 3
s/administered by separate Service Providers, it would break/administered b=
y separate Service Providers.  It would break/
s/ different Service Providers. Then cooperating PCEs/ different Service Pr=
oviders, then cooperating PCEs/
s/ it can supply this information/ it can supply the destination domain/
s/egress domain/destination domain/

Section 4
Please define " simply-connected " or expand the term.  I think you mean "c=
onnected in a simple path with no branches and single links between all dom=
ains".
Section 4.2 text duplicates the text in section 3.1 1st paragraph. Please d=
elete one of them.
s/ are composed by/ are composed of/
s/ are usually interconnected between them/ are usually interconnected/

OLD
A typical node degree ranges from 3 to 10 (4-5 is quite common), being the =
node degree the number of neighbors per node.
NEW
The node degree (the number of neighbors per node) typically ranges from 3 =
to 10 (4-5 is quite common).

Second paragraph of 4.3 "Networks are sometimes..." is redundant.  It has a=
ll been said already.
s/ Whenever an specific/ Whenever a specific/

Section 4.4 Again it feels like all of this has been said in section 3.1 al=
ready, except the bit about SRLGs.  I suggest combining these bits of text.=
  Perhaps section 3.1 should be removed.

Section 4.5 "A non-comprehensive list" Is it important to give this list?  =
It seems to add nothing to the existing reference to RFC5540/6007 - suggest=
 removing it.

s/ reach the destination domain, a domain sequence/ reach the destination d=
omain.  A domain sequence/
s/ is defined in [RFC3209], [RFC7897] specifies new/ is defined in [RFC3209=
].  [RFC7897] specifies new/

Section 5
5.1.1 " [RFC5441] provides a more optimal method to specify inclusion or ex=
clusion of an ABR" - this is the BRPC RFC.  It computes a more optimal path=
 in general.  But please can you clarify how it optimizes " inclusion or ex=
clusion of an ABR "?
s/ an area must be include or exclude from/ an area must be included or exc=
luded from/
s/ the indication of if a strict/ the indication of whether a strict/
s/ to compute diverse across/ to compute diverse paths across/
5.1.3 What point are you making by listing these types of diversity?=20

Section 5.2 - I don't understand what point this section is making.  I thin=
k it says that an operator may know an intra-area path exists, but then req=
uests an inter-area path anyway, but then looks at the response and says "I=
 don't like some of those areas" and so uses the intra-area path instead.  =
Really?  I would have thought that they would just use the intra-area path =
in the first place.  Also this section seems to imply that the PCE provides=
 the area / AS IDs in the returned ERO, which I do not believe is the case.

Section 6
There are several mistakes in English in this section.  I started listing t=
hem but ran out of time.  Please have an English speaker review and overhau=
l it.
6.1.1 I can't tell what this section is trying to say.  Please make the poi=
nt clearly.

Section 7
Ditto - many English mistakes in this section.
All the text in the first part of section 7 (before 7.1 starts) is redundan=
t, i.e. has been said already.  Please take it out.
7.1 " It could be helpful " ... this is too wishy-washy.  Helpful under wha=
t circumstances?
" the TED must be populated. Inter-as connectivity information may be popul=
ated "  I think you mean MUST and MAY.  This sentence is in the passive voi=
ce which makes it hard to understand which entity must take the described a=
ction.  I.e. which entity populates that TED?
7.1 This section is unclear.  What point is it trying to make?  I think I c=
an see two points in the text, but they are entangled and obscure.  The fir=
st point is that the TED may be provided by a variety of sources.  The seco=
nd point is that, when the IGPs provide the TED, they do not provide inform=
ation on inter-AS TE and therefore this information must come from another =
source.  Please separate your points and make them clearly.

7.1.1 " As PCE algorithms rely on information contained in the TED " - redu=
ndant, delete.
7.1.1 Final paragraph - as these LSPs are static, why can't they be provisi=
oned statically in the TED?

What happened to section 7.2?

7.3 " The management based solutions could also be used in conjunction with=
 the BRPC algorithm."  I think what you are saying here is that BRPC may be=
 used to pre-plan an AS sequence whereas the actual path within domains is =
not pre-planned and is instead computed using per-domain computation.  Plea=
se clarify.
7.3 This section ought to point out that in an inter-domain path, the opera=
tors of each domain must agree to what extent paths must be pre-planned and=
 manually controlled.

7.4 What point is this section making?  That has not already been said in R=
FC 5152?
s/RFC6805]/[RFC6805]

7.5 How is this different to 7.4?  Note that per-domain path computation is=
 also "co-operative PCEs".

7.6 This section just repeats material from RFC 6805 so seems redundant in =
this document.

Section 8
Most of the introduction repeats points already made by the document and do=
esn't need to be said again.  The introduction to s8 should say something l=
ike this.
NEW=20
   This section discusses the techniques that co-operating PCEs
   can use to compute inter-domain paths without each domain
   disclosing sensitive internal topology information (such as
   explicit nodes or links within the domain) to the other domains."

s/allows explicit route information to used/allows explicit route informati=
on to be used/

Section 10
s/path that satisfies/paths that satisfy/
I would retire the section heading for 10.1 and just make section 10 one fl=
at section.

Section 11
"Deployment of policy should also consider the need to be sensitive to comm=
ercial and reliability  information about domains and the interactions of s=
ervices crossing  domains."  What does that mean?  i.e. who needs to consid=
er this, what exactly are they considering, what do they do about it, and h=
ow does it relate to PCE?

Section 12
Overlaps and duplicates significantly with section 7, especially section 7.=
1.  Please combine the information in these sections.

Section 13
"section 8.4 of [RFC5440] and will not be repeated here." Is this stray tex=
t?  Delete it?

Sections 13.3 and 13.4 appear out of order (they appear after section 14).
Section 13.4 mentions security procedures - this should be done in section =
14.
Otherwise, section 13.4 just repeats stuff from RFC 5440 - not necessary.  =
Please delete it unless there is something specific to say about the inter-=
AS case.
Section 13.5 Just repeats stuff from RFC 5440 - not necessary.  Please dele=
te it unless there is something specific to say about the inter-AS case.

Section 14
I think this section should also talk about how to establish the trust rela=
tionship between domains and how PCEs can authenticate with each other.



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From nobody Fri Mar 10 05:37:17 2017
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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 Path Computation Element of the IETF.

        Title           : Extensions to the Path Computation Element Communication Protocol (PCEP) for Point-to-Multipoint Traffic Engineering Label Switched Paths
        Authors         : Quintin Zhao
                          Dhruv Dhody
                          Ramanjaneya Reddy Palleti
                          Daniel King
                          Fabien Verhaeghe
                          Tomonori Takeda
                          Julien Meuric
	Filename        : draft-ietf-pce-rfc6006bis-00.txt
	Pages           : 40
	Date            : 2017-03-10

Abstract:
   Point-to-point Multiprotocol Label Switching (MPLS) and Generalized
   MPLS (GMPLS) Traffic Engineering Label Switched Paths (TE LSPs) may
   be established using signaling techniques, but their paths may first
   need to be determined.  The Path Computation Element (PCE) has been
   identified as an appropriate technology for the determination of the
   paths of point-to-multipoint (P2MP) TE LSPs.

   This document describes extensions to the PCE communication Protocol
   (PCEP) to handle requests and responses for the computation of paths
   for P2MP TE LSPs.

   This document obsoletes RFC 6006.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-pce-rfc6006bis/

There's also a htmlized version available at:
https://tools.ietf.org/html/draft-ietf-pce-rfc6006bis-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: [Pce] Working group last call for draft-ietf-pce-rfc6006bis-00
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Dear PCE working group,

This email starts a working group last call for draft-ietf-pce-rfc6006bis-0=
0.

https://datatracker.ietf.org/doc/draft-ietf-pce-rfc6006bis/

Please read the document and reply to the PCE mailing list whether you beli=
eve this document is ready to be published, or not (including any comments =
on why not).  The last call will end on Monday 20 March.

Best regards
Jon, JP and Julien



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<p class=3D"MsoNormal">Dear PCE working group,<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">This email starts a working group last call for draf=
t-ietf-pce-rfc6006bis-00.<o:p></o:p></p>
<p class=3D"MsoPlainText"><a href=3D"https://datatracker.ietf.org/doc/draft=
-ietf-pce-rfc6006bis/">https://datatracker.ietf.org/doc/draft-ietf-pce-rfc6=
006bis/</a><o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Please read the document and reply to the PCE mailin=
g list whether you believe this document is ready to be published, or not (=
including any comments on why not).&nbsp; The last call will end on
<b>Monday 20 March</b>.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Best regards<o:p></o:p></p>
<p class=3D"MsoNormal">Jon, JP and Julien<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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From nobody Sun Mar 12 04:14:46 2017
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Subject: [Pce] I-D Action: draft-ietf-pce-pcep-yang-02.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 Path Computation Element of the IETF.

        Title           : A YANG Data Model for Path Computation Element Communications Protocol (PCEP)
        Authors         : Dhruv Dhody
                          Jonathan Hardwick
                          Vishnu Pavan Beeram
                          Jeff Tantsura
	Filename        : draft-ietf-pce-pcep-yang-02.txt
	Pages           : 109
	Date            : 2017-03-12

Abstract:
   This document defines a YANG data model for the management of Path
   Computation Element communications Protocol (PCEP) for communications
   between a Path Computation Client (PCC) and a Path Computation
   Element (PCE), or between two PCEs.  The data model includes
   configuration data and state data (status information and counters
   for the collection of statistics).


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

There's also a htmlized version available at:
https://tools.ietf.org/html/draft-ietf-pce-pcep-yang-02

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-pce-pcep-yang-02


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From nobody Sun Mar 12 09:39:13 2017
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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 Path Computation Element of the IETF.

        Title           : Path Computation Element (PCE) Protocol Extensions for Stateful PCE usage for Point-to-Multipoint Traffic Engineering Label Switched Paths
        Authors         : Udayasree Palle
                          Dhruv Dhody
                          Yosuke Tanaka
                          Vishnu Pavan Beeram
	Filename        : draft-ietf-pce-stateful-pce-p2mp-02.txt
	Pages           : 32
	Date            : 2017-03-12

Abstract:
   The Path Computation Element (PCE) has been identified as an
   appropriate technology for the determination of the paths of point-
   to-multipoint (P2MP) TE LSPs.  This document provides extensions
   required for Path Computation Element communication Protocol (PCEP)
   so as to enable the usage of a stateful PCE capability in supporting
   P2MP TE LSPs.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-pce-stateful-pce-p2mp/

There's also a htmlized version available at:
https://tools.ietf.org/html/draft-ietf-pce-stateful-pce-p2mp-02

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https://www.ietf.org/rfcdiff?url2=draft-ietf-pce-stateful-pce-p2mp-02


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From nobody Mon Mar 13 02:19:55 2017
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Subject: [Pce] I-D Action: draft-ietf-pce-association-diversity-01.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 Path Computation Element of the IETF.

        Title           : Path Computation Element communication Protocol extension for signaling LSP diversity constraint
        Authors         : Stephane Litkowski
                          Siva Sivabalan
                          Colby Barth
                          Dhruv Dhody
	Filename        : draft-ietf-pce-association-diversity-01.txt
	Pages           : 17
	Date            : 2017-03-13

Abstract:
   This document introduces a simple mechanism to associate a group of
   Label Switched Paths (LSPs) via an extension to the Path Computation
   Element Communication Protocol (PCEP) with the purpose of computing
   diverse paths for those LSPs.  The proposed extension allows a PCC to
   advertise to a PCE the belonging of a particular LSP to a disjoint-
   group, thus the PCE knows that LSPs in the same group must be
   disjoint from each other.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-pce-association-diversity/

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https://tools.ietf.org/html/draft-ietf-pce-association-diversity-01

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https://www.ietf.org/rfcdiff?url2=draft-ietf-pce-association-diversity-01


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From nobody Mon Mar 13 02:24:30 2017
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From: <stephane.litkowski@orange.com>
To: "adrian@olddog.co.uk" <adrian@olddog.co.uk>, 'Jonathan Hardwick' <Jonathan.Hardwick@metaswitch.com>, "pce@ietf.org" <pce@ietf.org>
Thread-Topic: [Pce] Poll for adoption: draft-litkowski-pce-association-diversity
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Subject: Re: [Pce] Poll for adoption: draft-litkowski-pce-association-diversity
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Hi Adrian,

We just posted a v01 that tried to address your comments.
Some encoding/procedures proposed still requires discussion for sure. Pleas=
e let us know your feedback.

We have an on going discussion with the authors of the base association gro=
up draft. Your last point on security may be addressed by this document in =
a next revision as we think that it is a more general item.

Best regards,


A New Internet-Draft is available from the on-line Internet-Drafts director=
ies.
This draft is a work item of the Path Computation Element of the IETF.

        Title           : Path Computation Element communication Protocol e=
xtension for signaling LSP diversity constraint
        Authors         : Stephane Litkowski
                          Siva Sivabalan
                          Colby Barth
                          Dhruv Dhody
	Filename        : draft-ietf-pce-association-diversity-01.txt
	Pages           : 17
	Date            : 2017-03-13

Abstract:
   This document introduces a simple mechanism to associate a group of
   Label Switched Paths (LSPs) via an extension to the Path Computation
   Element Communication Protocol (PCEP) with the purpose of computing
   diverse paths for those LSPs.  The proposed extension allows a PCC to
   advertise to a PCE the belonging of a particular LSP to a disjoint-
   group, thus the PCE knows that LSPs in the same group must be
   disjoint from each other.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-pce-association-diversity/

There's also a htmlized version available at:
https://tools.ietf.org/html/draft-ietf-pce-association-diversity-01

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=3Ddraft-ietf-pce-association-diversity-01


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/


-----Original Message-----
From: Adrian Farrel [mailto:adrian@olddog.co.uk]=20
Sent: Saturday, January 14, 2017 18:08
To: 'Jonathan Hardwick'; pce@ietf.org
Cc: draft-litkowski-pce-association-diversity@ietf.org; pce-chairs@ietf.org
Subject: RE: [Pce] Poll for adoption: draft-litkowski-pce-association-diver=
sity

> This is start of a two week poll on making
draft-litkowski-pce-association-diversity-01 a PCE working group document.

Hi,

I support the adoption of this draft, because it is clear that this functio=
n needs to be provided. But my review throws up a few things that should be=
 worked on. None of my issues needs hold up adoption of the document so lon=
g as we can agree to look at them as the work goes forward. Note that a few=
 of my comments might lead to reducing the available function, and other mi=
ght suggest using existing mechanisms rather than adding new features.

Thanks,
Adrian

=3D=3D=3D

Could the Abstract make it a little clearer whether this signaling is to re=
quest a PCE to compute diverse group of LSPs, request that a PCE compute th=
e path of an LSP that is diverse from some other group of existing LSPs, in=
dicate to a PCC that it must set up a group of diverse LSPs, indicate to a =
PCC that an LSP that is to be set up must be diverse from some other group =
of LSPs, or report from a PCC to a PCE that a group of LSPs are diverse.

In other words, give some indication of what the feature is for.

---

Similarly, the Introduction needs to give some more clue. When it says "use=
d to signal" it fails to indicate who signals to whom and at what stage in =
the process.

---

The document needs to make it clear why the SVEC object is not a suitable a=
pproach. I think this will follow from the previous two points but it is im=
portant to mention SVEC and clarify the relationship to that object which h=
as previously been used to enable "related" computations.

---

The caption to Figure 1 might better read...

Figure 1 - Disjoint paths with different head-ends and tail-ends

---

"PCInit" should, I think, be "PCInitiate".

---

I want to note that diverse paths can often only be successfully computed i=
f they are computed as a batch. Therefore, a mechanism that allows one PCC =
to request an LSP "disjoint from everything else in this group" is flawed u=
nless the PCE has some way to know the whole of the group.=20
Otherwise, the PCE will compute the path of the LSP as the CSPF because the=
 group is empty and will later get a second request ("compute a second LSP =
disjoint from the group") that it might not be able to satisfy. This proble=
m is compounded by increasing the size of the group without the PCE even kn=
owing whether it has information about the whole group.

That fact does not detract from the protocol mechanism, but does, I think, =
mean that the use case of two or more separate PCCs (LERs) requesting LSPs =
to be diverse from the group is either more complex (it could use rerouting=
 to achieve the results after performing a "global concurrent reoptimizatio=
n", or it could have additional protocol mechanisms to scope the group), or=
 subject to failures or suboptimal results.

Note that SVEC, SVEC list, and GCO were previous attempts to address this s=
pecific problem. Just as OFs were previous ways of expressing the computati=
on result desired.

---

In 4.1 you have...

   A disjoint group can have two or more LSPs.  But a PCE may be limited
   in how many LSPs it can take into account when computing
   disjointness: usually PCEs are able to compute a pair of disjoint
   paths.  If a PCE receives more LSPs in the group than it can handle
   in its computation algorithm, it SHOULD apply disjointness
   computation to only a subset of LSPs in the group.  The subset of
   disjoint LSPs will be decided by the implementation.

I think it would be good to strike ": usually PCEs are able to compute a pa=
ir of disjoint paths". That is an implementation detail and actually has no=
 bearing on the protocol mechanism you define. That is, even if a PCE can o=
nly compute one path, the "subset" of one will work.=20
(Personally, I think PCEs should be able to handle arbitrary groups, but I =
understand some algorithms differ.)

What is missing, however, is how the PCE in this case reports that it did n=
ot perform the requested function, but still supplied paths. That is, the p=
aths are not what was requested, but are supplied as though they were. I be=
lieve the PCE MUST report this fact so that the PCC can decide whether or n=
ot to use the paths.

---

Similarly

   Associating a particular LSP to multiple disjoint groups is
   authorized from a protocol perspective, however there is no insurance
   that the PCE will be able to compute properly the multi-disjointness
   constraint.

So the PCE that cannot handle this case needs to have a formal response tha=
t lets the PCC know that something undesired has happened.

---

What is the interaction of the P flag and the OF?
If the OF says, for example, use the least load path, and yet the P flag is=
 set, what should the PCE do?
Perhaps this is what your text is trying to talk about.
Maybe then, this isn't specifically the "shortest path" flag, but is more a=
 "satisfy all constraints and objective functions first without considering=
 the diversity constraint" flag.

Even so, you should talk about what happens if there are two paths that equ=
ally satisfy the other constraints and OFs (consider ECMP) but where the us=
e of one allows diversity, and the use of the other does not.
(Hint: it is very easy to draw networks where this happens.)

---

How does the strictness requirement interact with the case (above) of not b=
eing able to compute for the full set at once?

---

Suppose I ask for node disjoint but am willing to settle for link disjoint.=
 How do I express this?
It would be {node, but not strict} + {link, strict} But I see no way to exp=
ress this.

---

If I say "not strict" can a PCE simply ignore me, or does it "do its best"?=
 And do you define "best" for a group of LSPs? Fewest LSPs that are disjoin=
t? Fewest points of non-disjointness across the group?=20
Sounds like a few new OFs to me.

And how does the PCE report what is not quite as requested?

---

I think you have a new security consideration to include. There needs to be=
 some authorisation associated with a group. Otherwise a "rogue" PCC can sa=
botage someone else's group by adding to it a strict request for an LSP tha=
t cannot possibly be disjoint. This would, as I understand it cause the who=
le group to be in error.


___________________________________________________________________________=
______________________________________________

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Orange decline toute responsabilite si ce message a ete altere, deforme ou =
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Thank you.


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Subject: [Pce] [Errata Verified] RFC6006 (4867)
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The following errata report has been verified for RFC6006,
"Extensions to the Path Computation Element Communication Protocol (PCEP) for Point-to-Multipoint Traffic Engineering Label Switched Paths". 

--------------------------------------
You may review the report below and at:
http://www.rfc-editor.org/errata_search.php?rfc=6006&eid=4867

--------------------------------------
Status: Verified
Type: Technical

Reported by: DHRUV DHODY <DHRUV.IETF@GMAIL.COM>
Date Reported: 2016-11-16
Verified by: Deborah Brungard (IESG)

Section: 3.4

Original Text
-------------
           <PCReq Message>::= <Common Header>
                                 <request>
        where:
                <request>::= <RP>
                                <end-point-rro-pair-list>
                                [<OF>]
                                [<LSPA>]
                                [<BANDWIDTH>]
                                [<metric-list>]
                                [<IRO>]
                                [<LOAD-BALANCING>]

        where:

                <end-point-rro-pair-list>::=
                                   <END-POINTS>[<RRO-List>][<BANDWIDTH>]
                                   [<end-point-rro-pair-list>]

                <RRO-List>::=<RRO>[<BANDWIDTH>][<RRO-List>]
                <metric-list>::=<METRIC>[<metric-list>]

Corrected Text
--------------
           <PCReq Message>::= <Common Header>
                              [<svec-list>]
                              <request-list>

           where:

                <svec-list>::=<SVEC>
                              [<OF>]
                              [<metric-list>]
                              [<svec-list>]

                <request-list>::=<request>[<request-list>]

                <request>::= <RP>
                             <end-point-rro-pair-list>
                             [<OF>]
                             [<LSPA>]
                             [<BANDWIDTH>]
                             [<metric-list>]
                             [<IRO>|<BNC>]
                             [<LOAD-BALANCING>]

           where:

                <end-point-rro-pair-list>::=
                                   <END-POINTS>[<RRO-List>[<BANDWIDTH>]]
                                   [<end-point-rro-pair-list>]
                <RRO-List>::=(<RRO>|<SRRO>)[<RRO-List>]
                <metric-list>::=<METRIC>[<metric-list>]

Notes
-----
o Update the Routing Backus-Naur Form (RBNF) [RFC5511] for Request
   message format: 

      * Update the request message to allows for the bundling of
      multiple path computation requests within a single Path
      Computation Request (PCReq) message.

      * Add <svec-list> in PCReq message. This object was  missed in
      [RFC6006].

      * Add BNC object in PCReq message. This object is required to
      support P2MP. It shares the same format as Include Route Object
      (IRO) but it is a different object. 
 
      * Update the <RRO-List> format to also allow Secondary Record
      Route object (SRRO). This object was  missed in [RFC6006].

      * Removed the BANDWIDTH Object followed by Record Route Object
      (RRO) from <RRO-List>. As BANDWIDTH object doesn't need to follow
      for each RRO in the <RRO-List>, there already exist BANDWIDTH
      object follow <RRO-List> and is backward compatible with
      [RFC5440].

      * Update the <end-point-rro-pair-list> to allow optional BANDWIDTH
      object only if <RRO-List> is included. 

Refer https://datatracker.ietf.org/doc/draft-palleti-pce-rfc6006bis/?include_text=1

--------------------------------------
RFC6006 (draft-ietf-pce-pcep-p2mp-extensions-11)
--------------------------------------
Title               : Extensions to the Path Computation Element Communication Protocol (PCEP) for Point-to-Multipoint Traffic Engineering Label Switched Paths
Publication Date    : September 2010
Author(s)           : Q. Zhao, Ed., D. King, Ed., F. Verhaeghe, T. Takeda, Z. Ali, J. Meuric
Category            : PROPOSED STANDARD
Source              : Path Computation Element
Area                : Routing
Stream              : IETF
Verifying Party     : IESG


From nobody Mon Mar 13 08:49:59 2017
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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 Path Computation Element of the IETF.

        Title           : PCEP Extensions for MPLS-TE LSP Automatic Bandwidth Adjustment with Stateful PCE
        Authors         : Dhruv Dhody
                          Udayasree Palle
                          Ravi Singh
                          Rakesh Gandhi
                          Luyuan Fang
	Filename        : draft-ietf-pce-stateful-pce-auto-bandwidth-03.txt
	Pages           : 29
	Date            : 2017-03-13

Abstract:
   The Path Computation Element Communication Protocol (PCEP) provides
   mechanisms for Path Computation Elements (PCEs) to perform path
   computations in response to Path Computation Clients (PCCs) requests.

The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-pce-stateful-pce-auto-bandwidth/

There's also a htmlized version available at:
https://tools.ietf.org/html/draft-ietf-pce-stateful-pce-auto-bandwidth-03

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-pce-stateful-pce-auto-bandwidth-03


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/


From nobody Mon Mar 13 11:39:42 2017
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Subject: [Pce] Alvaro Retana's No Objection on draft-ietf-pce-stateful-sync-optimizations-09: (with COMMENT)
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Alvaro Retana has entered the following ballot position for
draft-ietf-pce-stateful-sync-optimizations-09: No Objection

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----------------------------------------------------------------------
COMMENT:
----------------------------------------------------------------------

(1) The Speaker Entity Identifier concerns me a lot because of the
spoofing vector it introduces, and because I don't think the uniqueness
is strongly specified.  I understand that the risk of spoofing is limited
to the State Timeout Interval, but that is a long time:  at least 30 sec
by default!  It looks like the main use case is to avoid state
synchronization after an IP address change -- are there other?  

(2) By making TCP-AO/TLS "RECOMMENDED", this document is not in line with
RFC5440, where only TCP-MD5 is mandatory.  I don't think the intent of
this document is to Update RFC5440, is it?  Also, why would the
recommendations for this extension be different than those in
draft-ietf-pce-stateful-pce (which doesn't go beyond what RFC5440
mentions)?  If you do keep the current recommendation, then
draft-ietf-pce-pceps should be a Normative reference.



From nobody Mon Mar 13 11:45:48 2017
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Hi all,

Please find below a new draft that define a new Backward Recursive method to setup inter-domain LSP with PCInitiate message.

Regards

Olivier & Julien

---

A new version of I-D, draft-dugeon-brpc-stateful-00.tx

has been successfully submitted by Olivier Dugeon and posted to the

IETF repository.

Name:		draft-dugeon-brpc-stateful
Revision:	00
Title:		A Backward Recursive PCE-initiated inter-domain LSP Setup
Document date:	2017-03-13
Group:		Individual Submission
Pages:		16
URL:            https://www.ietf.org/internet-drafts/draft-dugeon-brpc-stateful-00.txt
Status:         https://datatracker.ietf.org/doc/draft-dugeon-brpc-stateful/
Htmlized:       https://tools.ietf.org/html/draft-dugeon-brpc-stateful-00


Abstract:
   The Path Computation Element (PCE) working group (WG) has produced a
   set of RFCs to standardize the behavior of the Path Computation
   Element as a tool to help MPLS-TE, GMPLS LSP tunnels and Segment
   Routing paths placement.  This also include the ability to compute
   inter-domain LSPs or Segment Routing path following a distributed or
   hierarchical approach.  In complement to the original stateless mode,
   a stateful mode has been added.  In particular, the new PCInitiate
   message allows a PCE to directly ask a PCC to setup an MPLS-TE, GMPLS
   LSP tunnels or a Segment Routing path.  However, once computed, the
   inter-domain LSPs or Segment Routing path are hard to setup in the
   underlying network.  Especially, in operational network, RSVP-TE
   signaling is not enable between BGP border routers.  But, such RSVP-
   TE signaling is mandatory to setup contiguous LSP tunnels or to
   stitch or nest independent LSP tunnels to form the end-to-end inter-
   domain LSP tunnels.  This draft propose to combine a Backward
   Recursive method with PCInitiate message to setup independent LSP
   tunnels per domain and stitch or nest the different LSP tunnels to
   setup end-to-end inter-domain LSP tunnels without the need of inter-
   domain signaling between BGP border routers.  A new Stitching Label
   definition and new LSP-TYPE code points are proposed for that
   purpose.





_________________________________________________________________________________________________________________________

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From nobody Mon Mar 13 14:33:27 2017
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From: "Adrian Farrel" <adrian@olddog.co.uk>
To: "'Alvaro Retana'" <aretana@cisco.com>, "'The IESG'" <iesg@ietf.org>
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Subject: Re: [Pce] Alvaro Retana's No Objection on draft-ietf-pce-stateful-sync-optimizations-09: (with COMMENT)
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> (2) By making TCP-AO/TLS "RECOMMENDED", this document is not in line with
> RFC5440, where only TCP-MD5 is mandatory.  I don't think the intent of
> this document is to Update RFC5440, is it?  Also, why would the
> recommendations for this extension be different than those in
> draft-ietf-pce-stateful-pce (which doesn't go beyond what RFC5440
> mentions)?  If you do keep the current recommendation, then
> draft-ietf-pce-pceps should be a Normative reference.

It is (should be?) clear that moving PCEP on beyond MD5 is a Good Thing.

Ideally, everyone just gets on with it and the security update is handled by
draft-ietf-pce-pceps. But that I-D is chugging along in the WG for some reason.

Do we want:
1. All output from the WG to be blocked waiting for draft-ietf-pce-pceps?
2. All I-Ds to continue to say "just do MD5 per RFC 5440"?
3. To write sensible text in the Security Considerations and get on with life?

Adrian



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From: "Alvaro Retana (aretana)" <aretana@cisco.com>
To: "adrian@olddog.co.uk" <adrian@olddog.co.uk>, "'The IESG'" <iesg@ietf.org>
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From: Jonathan Hardwick <Jonathan.Hardwick@metaswitch.com>
To: "Alvaro Retana (aretana)" <aretana@cisco.com>, "adrian@olddog.co.uk" <adrian@olddog.co.uk>, 'The IESG' <iesg@ietf.org>
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c3luYy1vcHRpbWl6YXRpb25zLTA5OiAod2l0aCBDT01NRU5UKQ0KDQpPbiAzLzEzLzE3LCA1OjMz
IFBNLCAiaWVzZyBvbiBiZWhhbGYgb2YgQWRyaWFuIEZhcnJlbCIgPGllc2ctYm91bmNlc0BpZXRm
Lm9yZyBvbiBiZWhhbGYgb2YgYWRyaWFuQG9sZGRvZy5jby51az4gd3JvdGU6DQoNCj4gSWRlYWxs
eSwgZXZlcnlvbmUganVzdCBnZXRzIG9uIHdpdGggaXQgYW5kIHRoZSBzZWN1cml0eSB1cGRhdGUg
aXMgDQo+IGhhbmRsZWQgYnkgZHJhZnQtaWV0Zi1wY2UtcGNlcHMuDQoNCkkgYWdyZWUuICBUaGF0
IHNlY3VyaXR5IHVwZGF0ZSBkb2VzbuKAmXQgYmVsb25nIGluIHRoaXMgZG9jdW1lbnQuDQoNCkFs
dmFyby4NCg0K


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Mirja Kühlewind has entered the following ballot position for
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----------------------------------------------------------------------
COMMENT:
----------------------------------------------------------------------

Minor comments:
1) I guess the I flag in the INTER-LAYER Object is actually not needed as
the present of the INTER-LAYER Object already indicates that inter-layer
information is requested, but that is not an issue.
2) Is the INTER-LAYER Object Flags registry really needed, given the
limited amount of flag space???
3) Security Consideration: "Inter-layer traffic engineering with PCE may
raise new security
   issues when PCE-PCE communication is done between different layer
   networks for inter-layer path computation."
   This text is not very helpful as this section is meant to be used to
document these new issues.



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----------------------------------------------------------------------
COMMENT:
----------------------------------------------------------------------

Minor comment:
The U flag in the STATEFUL-PCE-CAPABILITY TLV is probably not necessary
as the presents of this TVL already indicates that updates are supported;
however not an issue.



From nobody Tue Mar 14 10:09:02 2017
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Hej Mirja,
Thanks for the review.

> Minor comments:
> 1) I guess the I flag in the INTER-LAYER Object is actually not needed =
as
> the present of the INTER-LAYER Object already indicates that =
inter-layer
> information is requested, but that is not an issue.

I think that this is true in a PCReq, but it may be helpful for an =
implementation to always include the object but toggle the flag.
But in a PCRep the difference (while semantically the same) can have =
different inference. Thus...
If a PCReq has the object with I=3D1 and the PCRep has the object with =
I=3D0 we know that the responder considered providing an interlayer =
path, but did not. If, instead, the object is absent from the PCRep we =
can't be sure how seriously the responder considered the request =
(although the result is still a mono-layer path).

> 2) Is the INTER-LAYER Object Flags registry really needed, given the
> limited amount of flag space???

I think so, yes.
The registry is to stop collisions.
I don't see how the size of the range makes much (any) difference.
If you don't have a registry, anyone can grab any bit and there is a =
requirement that everyone reads every draft to avoid collisions.

> 3) Security Consideration: "Inter-layer traffic engineering with PCE =
may
> raise new security
>    issues when PCE-PCE communication is done between different layer
>    networks for inter-layer path computation."
>    This text is not very helpful as this section is meant to be used =
to
> document these new issues.

I'm trying to avoid saying "this should be obvious to one skilled in the =
art" since that always annoys me when the US patent office says it to =
me.

We could fill this out as...

OLD
   Inter-layer traffic engineering with PCE may raise new security
   issues when PCE-PCE communication is done between different layer
   networks for inter-layer path computation.  Security issues may also
   exist when a single PCE is granted full visibility of TE information
   that applies to multiple layers.

   Path-Key-based mechanism defined in [RFC5520] MAY be applied to
   address the topology confidentiality between different layers.
NEW=20
   Inter-layer traffic engineering with PCE may raise new security
   issues when PCE-PCE communication is done between different layer
   networks for inter-layer path computation because information about
   the networks at different layers will necessarily be exposed in
   computation results.  Furthermore, a PCE in one layer might use=20
   computation requests to "probe" for information about the network
   in the other layer.=20
  =20
   Security issues may also exist when a single PCE is granted full=20
   visibility of TE information that applies to multiple layers.

   In both cases cited here, the security concerns are to do with=20
   exposure of information about a network to parties outside that
   network.  These concerns relate to the privacy of the commercial
   details of a network, but it should also be understood that=20
   distributing information about networks extends the attack surface
   for those networks.

   Path-Key-based mechanism defined in [RFC5520] MAY be applied to
   address the topology confidentiality between different layers.
END

Thanks,
Adrian


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Hi Adrian,

comments below.

> Am 14.03.2017 um 18:08 schrieb Adrian Farrel <adrian@olddog.co.uk>:
>=20
> Hej Mirja,
> Thanks for the review.
>=20
>> Minor comments:
>> 1) I guess the I flag in the INTER-LAYER Object is actually not =
needed as
>> the present of the INTER-LAYER Object already indicates that =
inter-layer
>> information is requested, but that is not an issue.
>=20
> I think that this is true in a PCReq, but it may be helpful for an =
implementation to always include the object but toggle the flag.
> But in a PCRep the difference (while semantically the same) can have =
different inference. Thus...
> If a PCReq has the object with I=3D1 and the PCRep has the object with =
I=3D0 we know that the responder considered providing an interlayer =
path, but did not. If, instead, the object is absent from the PCRep we =
can't be sure how seriously the responder considered the request =
(although the result is still a mono-layer path).

Okay.

>=20
>> 2) Is the INTER-LAYER Object Flags registry really needed, given the
>> limited amount of flag space???
>=20
> I think so, yes.
> The registry is to stop collisions.
> I don't see how the size of the range makes much (any) difference.
> If you don't have a registry, anyone can grab any bit and there is a =
requirement that everyone reads every draft to avoid collisions.

Given the flag field in this document is specified as reserved, any new =
doc that specifies a new flag must update this document. Hopefully the =
process works well enough to not cause collisions (I=E2=80=99m confident =
of that).=20

The size matters, as I would expect that the number of documents that =
update this part is rather limited and therefore this is a viable and =
scalable approach.

However, if you=E2=80=99d decide to keep the registry, you should not =
specify the remaining flag part as reserved (otherwise you still have to =
update this document even if you have a registry).=20

I would still recommend not to use a registry.

>=20
>> 3) Security Consideration: "Inter-layer traffic engineering with PCE =
may
>> raise new security
>>   issues when PCE-PCE communication is done between different layer
>>   networks for inter-layer path computation."
>>   This text is not very helpful as this section is meant to be used =
to
>> document these new issues.
>=20
> I'm trying to avoid saying "this should be obvious to one skilled in =
the art" since that always annoys me when the US patent office says it =
to me.
>=20
> We could fill this out as...
>=20
> OLD
>   Inter-layer traffic engineering with PCE may raise new security
>   issues when PCE-PCE communication is done between different layer
>   networks for inter-layer path computation.  Security issues may also
>   exist when a single PCE is granted full visibility of TE information
>   that applies to multiple layers.
>=20
>   Path-Key-based mechanism defined in [RFC5520] MAY be applied to
>   address the topology confidentiality between different layers.
> NEW=20
>   Inter-layer traffic engineering with PCE may raise new security
>   issues when PCE-PCE communication is done between different layer
>   networks for inter-layer path computation because information about
>   the networks at different layers will necessarily be exposed in
>   computation results.  Furthermore, a PCE in one layer might use=20
>   computation requests to "probe" for information about the network
>   in the other layer.=20
>=20
>   Security issues may also exist when a single PCE is granted full=20
>   visibility of TE information that applies to multiple layers.
>=20
>   In both cases cited here, the security concerns are to do with=20
>   exposure of information about a network to parties outside that
>   network.  These concerns relate to the privacy of the commercial
>   details of a network, but it should also be understood that=20
>   distributing information about networks extends the attack surface
>   for those networks.
>=20
>   Path-Key-based mechanism defined in [RFC5520] MAY be applied to
>   address the topology confidentiality between different layers.
> END

Thanks! Much better!

Mirja

>=20
> Thanks,
> Adrian
>=20


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Hi,

That was quick!

> >> 2) Is the INTER-LAYER Object Flags registry really needed, given =
the
> >> limited amount of flag space???
> >
> > I think so, yes.
> > The registry is to stop collisions.
> > I don't see how the size of the range makes much (any) difference.
> > If you don't have a registry, anyone can grab any bit and there is a =
requirement
> that everyone reads every draft to avoid collisions.
>=20
> Given the flag field in this document is specified as reserved, any =
new doc that
> specifies a new flag must update this document. Hopefully the process =
works
> well enough to not cause collisions (I=E2=80=99m confident of that).
>=20
> The size matters, as I would expect that the number of documents that =
update
> this part is rather limited and therefore this is a viable and =
scalable approach.
>=20
> However, if you=E2=80=99d decide to keep the registry, you should not =
specify the
> remaining flag part as reserved (otherwise you still have to update =
this document
> even if you have a registry).
>=20
> I would still recommend not to use a registry.

There is a difference between "Reserved" in an IANA registry and =
"reserved" in the text.

I believe we have used a tried and tested wording (well, as long as I =
can recall) where:
- unassigned bits are described in the protocol as "reserved - must be =
set to
   zero, should be ignored"
- unassigned bits are flagged in the registry as "unassigned"
Such a formula never requires an update to the base RFC.

> >> 3) Security Consideration: "Inter-layer traffic engineering with =
PCE may
> >> raise new security
> >>   issues when PCE-PCE communication is done between different layer
> >>   networks for inter-layer path computation."
> >>   This text is not very helpful as this section is meant to be used =
to
> >> document these new issues.
> >
> > I'm trying to avoid saying "this should be obvious to one skilled in =
the art" since
> that always annoys me when the US patent office says it to me.
> >
> > We could fill this out as...
> >
> > OLD
> >   Inter-layer traffic engineering with PCE may raise new security
> >   issues when PCE-PCE communication is done between different layer
> >   networks for inter-layer path computation.  Security issues may =
also
> >   exist when a single PCE is granted full visibility of TE =
information
> >   that applies to multiple layers.
> >
> >   Path-Key-based mechanism defined in [RFC5520] MAY be applied to
> >   address the topology confidentiality between different layers.
> > NEW
> >   Inter-layer traffic engineering with PCE may raise new security
> >   issues when PCE-PCE communication is done between different layer
> >   networks for inter-layer path computation because information =
about
> >   the networks at different layers will necessarily be exposed in
> >   computation results.  Furthermore, a PCE in one layer might use
> >   computation requests to "probe" for information about the network
> >   in the other layer.
> >
> >   Security issues may also exist when a single PCE is granted full
> >   visibility of TE information that applies to multiple layers.
> >
> >   In both cases cited here, the security concerns are to do with
> >   exposure of information about a network to parties outside that
> >   network.  These concerns relate to the privacy of the commercial
> >   details of a network, but it should also be understood that
> >   distributing information about networks extends the attack surface
> >   for those networks.
> >
> >   Path-Key-based mechanism defined in [RFC5520] MAY be applied to
> >   address the topology confidentiality between different layers.
> > END
>=20
> Thanks! Much better!

OK. Perhaps that can get added as an RFC Editor note?

Cheers,
Adrian


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Ben Campbell has entered the following ballot position for
draft-ietf-pce-inter-layer-ext-12: Discuss

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----------------------------------------------------------------------
DISCUSS:
----------------------------------------------------------------------

If I am reading things correctly, the security considerations just say
the extensions in this draft may raise new security considerations, but
doesn't say anything about what they might be. That's an incomplete
analysis. What new considerations actually (not "may") exist? What
potential attacks may be enabled by these extensions, if any? Are there
things people can do to mitigate them?





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Ben,

Please see the text proposed to address Mirja's Comment.

Thanks,
Adrian

> -----Original Message-----
> From: Pce [mailto:pce-bounces@ietf.org] On Behalf Of Ben Campbell
> Sent: 15 March 2017 01:06
> To: The IESG
> Cc: pce@ietf.org; draft-ietf-pce-inter-layer-ext@ietf.org; pce-chairs@ietf.org
> Subject: [Pce] Ben Campbell's Discuss on draft-ietf-pce-inter-layer-ext-12:
(with
> DISCUSS)
> 
> Ben Campbell has entered the following ballot position for
> draft-ietf-pce-inter-layer-ext-12: Discuss
> 
> When responding, please keep the subject line intact and reply to all
> email addresses included in the To and CC lines. (Feel free to cut this
> introductory paragraph, however.)
> 
> 
> Please refer to https://www.ietf.org/iesg/statement/discuss-criteria.html
> for more information about IESG DISCUSS and COMMENT positions.
> 
> 
> The document, along with other ballot positions, can be found here:
> https://datatracker.ietf.org/doc/draft-ietf-pce-inter-layer-ext/
> 
> 
> 
> ----------------------------------------------------------------------
> DISCUSS:
> ----------------------------------------------------------------------
> 
> If I am reading things correctly, the security considerations just say
> the extensions in this draft may raise new security considerations, but
> doesn't say anything about what they might be. That's an incomplete
> analysis. What new considerations actually (not "may") exist? What
> potential attacks may be enabled by these extensions, if any? Are there
> things people can do to mitigate them?
> 
> 
> 
> 
> _______________________________________________
> Pce mailing list
> Pce@ietf.org
> https://www.ietf.org/mailman/listinfo/pce


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The proposed text resolved my discuss. I will clear on the assumption it 
will make it in.

Thanks!

Ben.

On 15 Mar 2017, at 5:30, Adrian Farrel wrote:

> Ben,
>
> Please see the text proposed to address Mirja's Comment.
>
> Thanks,
> Adrian
>
>> -----Original Message-----
>> From: Pce [mailto:pce-bounces@ietf.org] On Behalf Of Ben Campbell
>> Sent: 15 March 2017 01:06
>> To: The IESG
>> Cc: pce@ietf.org; draft-ietf-pce-inter-layer-ext@ietf.org; 
>> pce-chairs@ietf.org
>> Subject: [Pce] Ben Campbell's Discuss on 
>> draft-ietf-pce-inter-layer-ext-12:
> (with
>> DISCUSS)
>>
>> Ben Campbell has entered the following ballot position for
>> draft-ietf-pce-inter-layer-ext-12: Discuss
>>
>> When responding, please keep the subject line intact and reply to all
>> email addresses included in the To and CC lines. (Feel free to cut 
>> this
>> introductory paragraph, however.)
>>
>>
>> Please refer to 
>> https://www.ietf.org/iesg/statement/discuss-criteria.html
>> for more information about IESG DISCUSS and COMMENT positions.
>>
>>
>> The document, along with other ballot positions, can be found here:
>> https://datatracker.ietf.org/doc/draft-ietf-pce-inter-layer-ext/
>>
>>
>>
>> ----------------------------------------------------------------------
>> DISCUSS:
>> ----------------------------------------------------------------------
>>
>> If I am reading things correctly, the security considerations just 
>> say
>> the extensions in this draft may raise new security considerations, 
>> but
>> doesn't say anything about what they might be. That's an incomplete
>> analysis. What new considerations actually (not "may") exist? What
>> potential attacks may be enabled by these extensions, if any? Are 
>> there
>> things people can do to mitigate them?
>>
>>
>>
>>
>> _______________________________________________
>> Pce mailing list
>> Pce@ietf.org
>> https://www.ietf.org/mailman/listinfo/pce


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Ben Campbell has entered the following ballot position for
draft-ietf-pce-inter-layer-ext-12: No Objection

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----------------------------------------------------------------------
COMMENT:
----------------------------------------------------------------------

The "enhanced" security considerations proposed in response to Mirja's
comments resolve my discuss. I am clearing on the assumption it makes it
into the draft. I've moved my discuss point into the comments for now:

<old-discuss>
If I am reading things correctly, the security considerations just say
the extensions in this draft may raise new security considerations, but
doesn't say anything about what they might be. That's an incomplete
analysis. What new considerations actually (not "may") exist? What
potential attacks may be enabled by these extensions, if any? Are there
things people can do to mitigate them?
</old-discuss>



From nobody Wed Mar 15 09:47:22 2017
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From: Daniel Franke <dafranke@akamai.com>
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Subject: [Pce] Review of draft-ietf-pce-stateful-sync-optimizations-09
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Reviewer: Daniel Franke
Review result: Has Issues

I have reviewed this document as part of the security directorate's
ongoing effort to review all IETF documents being processed by the
IESG.  These comments were written primarily for the benefit of the
security area directors.  Document editors and WG chairs should treat
these comments just like any other last call comments.

I believe this document is READY WITH a minor ISSUE addressed below.
The Security Considerations section of this document, along with its
companion draft-ietf-pce-stateful-pce-18, appears to do a thorough job
of enumerating the ways in which the newly-introduced message types
can contribute to the ability of misbehaving PCCs and PCEs to disrupt
each other, with consequences that generally strike me as acceptable.
It duly recommends that PCEP be run over an authenticated channel to
prevent these messages from being spoofed by a third party.

I am unsure how this final recommendation is going to be implemented
in practice. RFC 5440 characterizes channel security for PCEP as a
work-in-progress as of 2009, and I lack sufficient familiarity with
this area to know if the status quo has improved since then in
practice. The TCP authentication option, cited in RFC 5440 as WIP, is
now RFC 5925, but I don't know whether anyone actually uses it for
this application. TLS is mentioned as another alternative, but
existing standards documents give insufficient instruction on how to
implement this interoperably, since there is no mention of port
allocations, a STARTTLS scheme, an ALPN identification sequence, or
anything else that would explain how to go about initiating the TLS
session. It looks like draft-ietf-pce-pceps intends to rectify this.

Addressing whatever deficiencies exist in PCEP security mechanisms
obviously falls well outside the scope of this particular document to
address. Even if the administrator fails to provide channel security
for PCEP as recommended, adding support for stateful sync
optimizations will not leave the network meaningfully worse-off than
it was already. However -- and here's the ISSUE -- as Alvaro Retana
already sort of touched on, the introduction of the Speaker Entity ID
TLV means that implementation of stateful sync optimizations can't be
entirely agnostic with respect to the choice of channel security
mechanism. Implementations need to verify that the Speaker Entity ID
is consistent with the cryptographic identity of the channel peer in
order to prevent one PCC from spoofing the identity of another. Until
PCEP channel security matures a bit I'm not how much concrete advice
we can give implementers on how to do this properly, but somewhere in
the document there should at least be an observation that this check
should be present.

I also second Retana's desire for greater consistency between this
document, draft-ietf-pce-stateful-pce, and RFC 5440 as to which
channel security mechanisms are recommended and/or required.

PS - sorry about the last minute review.


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From: "BRUNGARD, DEBORAH A" <db3546@att.com>
To: "Alvaro Retana (aretana)" <aretana@cisco.com>, "adrian@olddog.co.uk" <adrian@olddog.co.uk>, "'The IESG'" <iesg@ietf.org>
CC: "pce@ietf.org" <pce@ietf.org>, "pce-chairs@ietf.org" <pce-chairs@ietf.org>, "draft-ietf-pce-stateful-sync-optimizations@ietf.org" <draft-ietf-pce-stateful-sync-optimizations@ietf.org>
Thread-Topic: [Pce] Alvaro Retana's No Objection on draft-ietf-pce-stateful-sync-optimizations-09: (with COMMENT)
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From: Huaimo Chen <huaimo.chen@huawei.com>
To: "pce@ietf.org" <pce@ietf.org>
Thread-Topic: Some thoughts/discussions on Hierarchical PCE discovery
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Subject: [Pce] Some thoughts/discussions on Hierarchical PCE discovery
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--_000_5316A0AB3C851246A7CA5758973207D45014BD58SJCEML703CHMchi_
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Hi Everyone,

    The following is a summary of thoughts/discussions about Hierarchical P=
CE discovery during/after IETF 96.

    After an operator configure a PCE hierarchy, i.e., parent PCE and child=
 PCE relations in a PCE system,  do we need to determine (or discover) the =
PCE hierarchy in the PCE protocol level?

    After an operator configures a parent PCE and a child PCE over a sessio=
n, this parent-child PCE relationship needs to be determined (or discovered=
) in the PCE protocol level. This is similar to existing OSPF and BGP proto=
col regarding to OSPF adjacency and BGP peer determination (or discovery).

    After an expected adjacency between two OSPF routers is configured by a=
n operator, the OSPF protocol (refer to RFC 2328, Section 7) will determine=
 whether the adjacency is allowed based on the parameters configured, and f=
orms the OSPF adjacency after the determination accordingly. If some parame=
ters configured on two ends of the expected adjacency do not match, the OSP=
F protocol will detect the mismatch and will not form the expected adjacenc=
y.

    After an expected peer relation between two BGP routers is configured b=
y an operator, the BGP protocol (refer to RFC 4271, Section 8) will determi=
ne whether the expected peer relationship is allowed based on the parameter=
s configured, and forms the BGP peer relation after the determination accor=
dingly.

    Only after determining that the parent-child PCE relation can be formed=
 and has been formed, a child PCE can send its parent PCE the information a=
bout the child PCE.  This is also similar to existing OSPF and BGP protocol=
 regarding to OSPF link state information advertisement over an OSPF adjace=
ncy and BGP route distribution over a BGP peer session.


    Why not use auto-discovery for Hierarchical PCE?

    There are security concerns in some cases.

    For two PCEs belonging to two different service providers, there are se=
curity concerns for automatically discovering the parent-child PCE relation=
 between them without any configuration.

    For PCEs belonging to the same service providers, it is possible for so=
me auto-discovery to discover the parent-child PCE relations among these PC=
Es with minimum configurations. But some rules for determining/selecting wh=
ich PCEs will be parent PCEs and which PCEs are child PCEs need to be defin=
ed first.


    Why use term "discovery"? Determination seems better.

    The hierarchy of PCEs in a hierarchical system is configured first, and=
 then is determined or confirmed in the PCE protocol level. Using term "dis=
covery" of Hierarchical PCE seems not fit well. Term "determination" seems =
better.



Best Regards,
Huaimo

--_000_5316A0AB3C851246A7CA5758973207D45014BD58SJCEML703CHMchi_
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<div class=3D"Section1">
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt">Hi Everyone,<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">&nbsp;&nbsp;&nbsp; =
The following is a summary of thoughts/discussions about
</span>Hierarchical PCE discovery <span style=3D"font-size:12.0pt">during/a=
fter IETF 96.<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">&nbsp;&nbsp;&nbsp; After an operator configure a PCE=
 hierarchy, i.e., parent PCE and child PCE relations in a PCE system, &nbsp=
;do we need to determine (or discover) the PCE hierarchy in the PCE protoco=
l level?<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">&nbsp;&nbsp;&nbsp; After an operator configures a pa=
rent PCE and a child PCE over a session, this parent-child PCE relationship=
 needs to be determined (or discovered) in the PCE protocol level. This is =
similar to existing OSPF and BGP protocol regarding
 to OSPF adjacency and BGP peer determination (or discovery).<o:p></o:p></p=
>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">&nbsp;&nbsp;&nbsp; After an expected adjacency betwe=
en two OSPF routers is configured by an operator, the OSPF protocol (refer =
to RFC 2328, Section 7) will determine whether the adjacency is allowed bas=
ed on the parameters configured, and forms the OSPF
 adjacency after the determination accordingly. If some parameters configur=
ed on two ends of the expected adjacency do not match, the OSPF protocol wi=
ll detect the mismatch and will not form the expected adjacency.<o:p></o:p>=
</p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">&nbsp;&nbsp;&nbsp; After an expected peer relation b=
etween two BGP routers is configured by an operator, the BGP protocol (refe=
r to RFC 4271, Section 8) will determine whether the expected peer relation=
ship is allowed based on the parameters configured,
 and forms the BGP peer relation after the determination accordingly.<o:p><=
/o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">&nbsp;&nbsp;&nbsp; Only after determining that the p=
arent-child PCE relation can be formed and has been formed, a child PCE can=
 send its parent PCE the information about the child PCE. &nbsp;This is als=
o similar to existing OSPF and BGP protocol regarding
 to OSPF link state information advertisement over an OSPF adjacency and BG=
P route distribution over a BGP peer session.<o:p></o:p></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>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt">&nbsp;&nbsp;&nbsp; =
Why not use auto-discovery for Hierarchical PCE?<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">&nbsp;&nbsp;&nbsp; =
There are security concerns in some cases.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt">&nbsp;<o:p></o:p></=
span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt">&nbsp;&nbsp;&nbsp; =
For two PCEs belonging to two different service providers, there are securi=
ty concerns for automatically discovering the parent-child PCE relation bet=
ween them without any configuration.
<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">&nbsp;&nbsp;&nbsp; =
For PCEs belonging to the same service providers, it is possible for some a=
uto-discovery to discover the parent-child PCE relations among these PCEs w=
ith minimum configurations. But some rules for determining/selecting
 which PCEs will be parent PCEs and which PCEs are child PCEs need to be de=
fined first.
<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>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt">&nbsp;&nbsp;&nbsp; =
Why use term &#8220;discovery&#8221;? Determination seems better.
<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">&nbsp;&nbsp;&nbsp; =
The hierarchy of PCEs in a hierarchical system is configured first, and the=
n is determined or confirmed in the PCE protocol level. Using term &#8220;d=
iscovery&#8221; of Hierarchical PCE seems not fit well. Term &#8220;determi=
nation&#8221;
 seems better.<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>
<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">Best Regards,<o:p><=
/o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:12.0pt">Huaimo<o:p></o:p></=
span></p>
</div>
</body>
</html>

--_000_5316A0AB3C851246A7CA5758973207D45014BD58SJCEML703CHMchi_--


From nobody Wed Mar 15 16:59:27 2017
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Subject: [Pce] Jari Arkko's No Objection on draft-ietf-pce-stateful-pce-18: (with COMMENT)
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Jari Arkko has entered the following ballot position for
draft-ietf-pce-stateful-pce-18: No Objection

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----------------------------------------------------------------------
COMMENT:
----------------------------------------------------------------------

Joel Halpern's Gen-ART review caused some discussion, which probably
should be reflected in the final document.



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Reviewer: Lionel Morand
Review result: Has Issues

I have reviewed this document as part of the Operational directorate's
ongoing effort to review all IETF documents being processed by the
IESG.  These comments were written with the intent of improving the
operational aspects of the IETF drafts. Comments that are not
addressed in last call may be included in AD reviews during the IESG
review.  Document editors and WG chairs should treat these comments
just like any other last call comments. 

I've pointed out some "issues" that might not be real issues for
people involved in PCE but that could be at least clarified for
readers of this document. Detailed comments are provided below.

Regards,

Lionel

********************
2.  Terminology

   This document uses the following terms defined in [RFC5440]: PCC,
   PCE, PCEP Peer, PCEP Speaker.

   This document uses the following terms defined in [RFC4655]: TED.

   This document uses the following terms defined in [RFC3031]: LSP.

   This document uses the following terms defined in
   [I-D.ietf-pce-stateful-pce-app]: Stateful PCE, Passive Stateful
PCE,
   Active Stateful PCE, Delegation, LSP State Database.

[LM] I didn't find a clear definition of the LSP state, except through
the definition of the LSP State database in ietf-pce-stateful-pce-app,
i.e.

   The second is the LSP
   State Database (LSP-DB), in which a PCE stores attributes of all
   active LSPs in the network, such as their paths through the
network,
   bandwidth/resource usage, switching types and LSP constraints.

As this document heavily relies on this LSP state concept, it could be
useful to (re-)define it in this document or to find a 
correct reference for it.


3.2.  Objectives

   The objectives for the protocol extensions to support stateful PCE
   described in this document are as follows:

[...]

   o  Allow a PCC to delegate control of its LSPs to an active
stateful
      PCE such that a given LSP is under the control of a single PCE
at
      any given time.  A PCC may revoke this delegation at any time
      during the lifetime of the LSP.  If LSP delegation is revoked
      while the PCEP session is up, the PCC MUST notify the PCE about
      the revocation.  A PCE may return an LSP delegation at any
point
      during the lifetime of the PCEP session.

[LM] I'm assuming that the PCE returning the delegation has also to
notify the PCC. If so, maybe:
     
     "the If LSP delegation is returned by the PCE while the PCEP 
      session is up, the PCE MUST notify the PCE about the
revocation."

[LM] the bullet point could be then splitted into two bullets, one for
PCC, one for PCE.

5.4.  Capability Advertisement

   During PCEP Initialization Phase, PCEP Speakers (PCE or PCC)
   advertise their support of stateful PCEP extensions.  A PCEP
Speaker
   includes the "Stateful PCE Capability" TLV, described in
   Section 7.1.1, in the OPEN Object to advertise its support for
PCEP
   stateful extensions.  The Stateful Capability TLV includes the
'LSP
   Update' Flag that indicates whether the PCEP Speaker supports LSP
   parameter updates.

   The presence of the Stateful PCE Capability TLV in PCC's OPEN
Object
   indicates that the PCC is willing to send LSP State Reports
whenever
   LSP parameters or operational status changes.

   The presence of the Stateful PCE Capability TLV in PCE's OPEN
message
   indicates that the PCE is interested in receiving LSP State
Reports
   whenever LSP parameters or operational status changes.

[LM] is it "willing/interested for" or just a capability indication?
It is not the same thing from a procedure point of view.

   The PCEP extensions for stateful PCEs MUST NOT be used if one or
both
   PCEP Speakers have not included the Stateful PCE Capability TLV in
   their respective OPEN message.  If the PCEP Speaker on the PCC
   supports the extensions of this draft but did not advertise this
   capability, then upon receipt of PCUpd message from the PCE, it
MUST
   generate a PCErr with error-type 19 (Invalid Operation),
error-value
   2 (Attempted LSP Update Request if the stateful PCE capability was
   not advertised)(see Section 8.5) and it SHOULD terminate the PCEP
   session.  If the PCEP Speaker on the PCE supports the extensions
of
   this draft but did not advertise this capability, then upon
receipt
   of a PCRpt message from the PCC, it MUST generate a PCErr with
error-
   type 19 (Invalid Operation), error-value 5 (Attempted LSP State
   Report if active stateful PCE capability was not advertised) (see
   Section 8.5) and it SHOULD terminate the PCEP session. 

[LM] why the recommendation for closing the session if an explicit
error is sent back? The session could remain open i.e. except stateful
PCEP extensions,everything else would be fine. If the session
termination is the right thing to do, as we are in a clear error case
(as the PCEP speaker should not send the report or the update), the
SHOULD should probably be a MUST hee. 

[LM] Is there any reason to use a specific error in such a case? The
PCE could just behave as a PCE not supporting the feature. Why is it
important for the supporting PCEP speaker to make the difference? The
generic behavior described in RFC5440 is not enough?

[LM] active/passive mode are not  advertized in PCEP.
s/if active stateful PCE capability was not advertised/if stateful PCE
capability was not advertised

>From RFC5440: "6.9.  Reception of Unknown Messages

   A PCEP implementation that receives an unrecognized PCEP message
MUST
   send a PCErr message with Error-value=2 (capability not
supported).

   If a PCC/PCE receives unrecognized messages at a rate equal or
   greater than MAX-UNKNOWN-MESSAGES unknown message requests per
   minute, the PCC/PCE MUST send a PCEP CLOSE message with close
   value="Reception of an unacceptable number of unknown PCEP
message".
   A RECOMMENDED value for MAX-UNKNOWN-MESSAGES is 5.  The PCC/PCE
MUST
   close the TCP session and MUST NOT send any further PCEP messages
on
   the PCEP session."

[LM] If it is the case, the error handling would be the same between a
PCEP speaker supporting the feature but not advertizing it and a PCEP
speaker not supporting the feature. And it would not be possible
possible to use the specific error responses to infer the capability
supported by the other node.

   Note that even if the update
   capability has not been advertised, a PCE can still accept LSP
Status
   Reports from a PCC and build and maintain an up to date view of
the
   state of the PCC's LSPs.

[LM] I don't undersand. Is it not in contradiction with
  
  "If the PCEP Speaker on the PCE supports the extensions of
   this draft but did not advertise this capability, then upon
receipt
   of a PCRpt message from the PCC, it MUST generate a PCErr with
error-
   type 19 (Invalid Operation), error-value 5 (Attempted LSP State
   Report if active stateful PCE capability was not advertised) (see
   Section 8.5) and it SHOULD terminate the PCEP session."

Or does it mean that there is another way than PCRpt message for the
PCC to send LSP status reports to the PCE?

[LM] In this section, it is not described how non-supporting PCEP
speaker will hanlded the new TLV. It could be said that unrecognized
TLVs will be ignored (as per RFC5440) and OPEN messages will be
handled as per RFC5440 (if the comment above is accepted).

[LM] Would it be useful to discover (using another TLV) whether the
PCE is an active/passive stateful PCE, as in IGP-based capabilities
discovery mechanism?

5.5.  IGP Extensions for Stateful PCE Capabilities Advertisement

   When PCCs are LSRs participating in the IGP (OSPF or IS-IS), and
PCEs
   are either LSRs or servers also participating in the IGP, an
   effective mechanism for PCE discovery within an IGP routing domain
   consists of utilizing IGP advertisements.  

[...]

   Note that while active and passive stateful PCE capabilities may
be
   advertised during discovery, PCEP Speakers that wish to use
stateful
   PCEP MUST negotiate stateful PCEP capabilities during PCEP session
   setup, as specified in the current document.  A PCC MAY initiate
   stateful PCEP capability negotiation at PCEP session setup even if
it
   did not receive any IGP PCE capability advertisements.
 
[LM] As said above, an as stated in section 5.4:
  "The PCEP extensions for stateful PCEs MUST NOT be used if one or
both
   PCEP Speakers have not included the Stateful PCE Capability TLV in
   their respective OPEN message."

What is the real added-value of this IGP-based mechanism? Only to be
able to identify active PCE/passive PCE mode?

5.6.  State Synchronization

[LM] "State" could be misleading. "LSP State Sync" would be more
approriate/accurate I think.

   The purpose of State Synchronization is to provide a
checkpoint-in-
   time state replica of a PCC's LSP state in a PCE.  State
   Synchronization is performed immediately after the Initialization
   phase ([RFC5440]).

   During State Synchronization, a PCC first takes a snapshot of the
   state of its LSPs state, then sends the snapshot to a PCE in a
   sequence of LSP State Reports.  Each LSP State Report sent during
   State Synchronization has the SYNC Flag in the LSP Object set to
1.
   The set of LSPs for which state is synchronized with a PCE is
   determined by advertised stateful PCEP capabilities and PCC's
local
   configuration (see more details in Section 9.1).

[LM] It seems that :

   "The set of LSPs for which state is synchronized"

should be:

   "The set of LSPs for which state is to be synchronized"

[LM] I don't see how the "advertised stateful PCEP capabilities" have
an effect on the set of LSP to synchronize. The capabilities adv is
only used to discover stateful PCE capabilities and see if the related
PCEP extensions can be used. The identification of the LSPs to
synchronize seems to be only based on policies configured in the PCC.

   The end of synchronization marker is a PCRpt message with the SYNC
   Flag set to 0 for an LSP Object with PLSP-ID equal to the reserved
   value 0 (see Section 7.3).  In this case, the LSP Object SHOULD
NOT
   include the SYMBOLIC-PATH-NAME TLV and SHOULD include the LSP-
   IDENTIFIERS TLV with the special value of all zeroes.  The PCRpt
   message MUST include an empty ERO as its intended path and SHOULD
NOT
   include the optional RRO object for its actual path.

[LM] What is the reason for the use of "SHOULD" here, instead of
"MUST"?

   If the PCC has
   no state to synchronize, it SHOULD only send the end of
   synchronization marker.

[LM] Is it when there is no active LSP? If it is, it could be useful
to clarify it. And it is maybe not so related to the text just before.
It could be clarified in a separate paragraph.

   A PCE SHOULD NOT send PCUpd messages to a PCC before State
   Synchronization is complete.  A PCC SHOULD NOT send PCReq messages
to
   a PCE before State Synchronization is complete.  This is to allow
the
   PCE to get the best possible view of the network before it starts
   computing new paths.

[LM] it is obviously assumed that this requirement is true for PCC/PCE
explicitly advertizing support of stateful PCE capability.

   If the PCC encounters a problem which prevents it from completing
the
   state transfer, it MUST send a PCErr message with error-type 20
(LSP
   State Synchronization Error) and error-value 5 (indicating an
   internal PCC error) to the PCE and terminate the session.

[LM] s/state transfer/LSP state synchornization

5.7.1.  Delegating an LSP

   A PCC delegates an LSP to a PCE by setting the Delegate flag in
LSP
   State Report to 1.  If the PCE does not accept the LSP Delegation,
it
   MUST immediately respond with an empty LSP Update Request which
has
   the Delegate flag set to 0.  If the PCE accepts the LSP
Delegation,
   it MUST set the Delegate flag to 1 when it sends an LSP Update
   Request for the delegated LSP (note that this may occur at a later
   time).  The PCE MAY also immediately acknowledge a delegation by
   sending an empty LSP Update Request which has the Delegate flag
set
   to 1.

[LM] if the delegation is not aceepted by the PCE, I assume that the
PCC should not set the Delegate flag in subsequent LSP state report.
If it is, this could be clarified somewhere in this section.

[..]

   Note that for an LSP to remain delegated to a PCE, the PCC MUST
set
   the Delegate flag to 1 on each LSP Status Report sent to the PCE.

[LM] s/each LSP Status Report/each LSP State Report for this LSP.

5.7.2.1.  Explicit Revocation

   When a PCC decides that a PCE is no longer permitted to modify an
   LSP, it revokes that LSP's delegation to the PCE.  A PCC may
revoke
   an LSP delegation at any time during the LSP's life time.  A PCC
   revoking an LSP delegation MAY immediately clear the LSP state
   provided by the PCE, but to avoid traffic loss, it SHOULD do so in
a
   make-before-break fashion.

[LM] After PCE delegation revocation, is there really a requirement
for LSP state clean-up? The revocation is used to remove the
authorization of LSP state update to the PCE but I don't see why the
PCC would clear LSP state after revocation. The LSP state can be
updated using operator-defined default parameters, right?

   If the PCC has received but not yet acted
   on PCUpd messages from the PCE for the LSP whose delegation is
being
   revoked, then it SHOULD ignore these PCUpd messages when
processing
   the message queue.  All effects of all messages for which
processing
   started before the revocation took place MUST be allowed to
complete
   and the result MUST be given the same treatment as any LSP that
had
   been previously delegated to the PCE (e.g. the state MAY be
   immediately cleared).  

[LM] If I correctly understood the text above, after revocation of the
PCE delegation,
- any PCUpd should be rejected and not ignored
- the LSP state(s) that was delegated to the PCE cannot be changed
until all the messages in the message queue have been processed. 

If I'm correct, the text above could be clarified.  

   Any further PCUpd messages from the PCE are
   handled according to the PCUpd procedures described in this
document.

[LM] Not understood. Further PCUpd "will result in the PCC sending a
PCErr message" as said after the figure.

5.7.2.2.  Revocation on Redelegation Timeout

   When a PCC's PCEP session with a PCE terminates unexpectedly, the
PCC
   MUST wait the time interval specified in Redelegation Timeout
   Interval before revoking LSP delegations to that PCE and
attempting
   to redelegate LSPs to an alternate PCE.  If a PCEP session with
the
   original PCE can be reestablished before the Redelegation Timeout
   Interval timer expires, LSP delegations to the PCE remain intact.

[LM] In case of PCEP session interruption, is there a requirement for
the PCE to update delegated LSP states in order to ensure the
synchronization between states in the PCE and in the PCC? 

   Likewise, when a PCC's PCEP session with a PCE terminates
   unexpectedly, the PCC MUST wait for the State Timeout Interval
before
   flushing any LSP state associated with that PCE.

[LM] it should be clarified that the "flushing" applies only if there
is no other PCE. Otherwise, see section 5.7.4

   Note that the State
   Timeout Interval timer may expire before the PCC has redelegated
the
   LSPs to another PCE, for example if a PCC is not connected to any
   active stateful PCE or if no connected active stateful PCE accepts
   the delegation.  

[LM] Not sure to understand. Is it "if a PCC is not connected to any
OTHER active stateful PCE or if no OTHER connected active stateful PCE
accepts the delegation?

   In this case, the PCC MUST flush any LSP state set
   by the PCE upon expiration of the State Timeout Interval and
revert
   to operator-defined default parameters or behaviors.  This
operation
   SHOULD be done in a make-before-break fashion.

[LM] I think it is important to make the distinction between PCC with
only one PCE and PCC with N PCE. The "Note that" could be put in a
separate section.

   The State Timeout Interval MUST be greater than or equal to the
   Redelegation Timeout Interval and MAY be set to infinity (meaning
   that until the PCC specifically takes action to change the
parameters
   set by the PCE, they will remain intact).

[LM] reading "the State Timeout Interval timer may expire before the
PCC has redelegated the LSPs to another PCE" could be understood as
STI timer < RTI timer. And here, it is stated STI timer >= RTI timer.
Depending on the clarification on the previous comment, this text
could be also clarified (or not)

5.7.3.  Returning a Delegation

   In order to keep a delegation, a PCE MUST set the Delegate flag to
1
   on each LSP Update Request sent to the PCC.  A PCE that no longer
   wishes to update an LSP's parameters SHOULD return the LSP
delegation
   back to the PCC by sending an empty LSP Update Request which has
the
   Delegate flag set to 0.  If a PCC receives an LSP Update Request
with
   the Delegate flag set to 0 (whether the LSP Update Request is
empty
   or not), it MUST treat this as a delegation return.

                     +-+-+                    +-+-+
                     |PCC|                    |PCE|
                     +-+-+                    +-+-+
                       |                        |
                       |---PCRpt, Delegate=1--->| LSP delegated
                       |            .           |
                       |            .           |
                       |            .           |
                       |<--PCUpd, Delegate=0----| Delegation returned
                       |                        |
                       |---PCRpt, Delegate=0--->| No delegation for
LSP
                       |                        |

                     Figure 6: Returning a Delegation

   If a PCC cannot delegate an LSP to a PCE (for example, if a PCC is
   not connected to any active stateful PCE or if no connected active
   stateful PCE accepts the delegation), the LSP delegation on the
PCC
   will time out within a configurable Redelegation Timeout Interval
and
   the PCC MUST flush any LSP state set by a PCE at the expiration of
   the State Timeout Interval.

[LM] same comment: is it "for example, if a PCC is not connected to
any OTHER active stateful PCE or if no OTHER connected active stateful
PCE accepts the delegation"?

[LM] "the PCC MUST flush any LSP state set" should be completed by
"and revert to operator-defined default parameters or behaviors",
right?

5.7.5.  Redelegation on PCE Failure

[...]

   If the PCE crashes but recovers within the Redelegation Timeout,
both
   the delegation state and the LSP state are kept intact.

[LM] "Recover" here seems to be associated with the PCEP session (as
linked to the Redelegation Timeout), not with the LSP states
maintained by the PCE.

[LM] How can the PCC be ensured that the PCE has not been impacted by
the stop/restart and that LSP states are intact? Is there any need for
a sanity check?

   If the PCE crashes but does not recover within the Redelegation
   Timeout, the delegation state is returned to the PCC.  If the PCC
can
   redelegate the LSPs to another PCE, and that PCE accepts the
   delegations, there will be no change in LSP state.  If the PCC
cannot
   redelegate the LSPs to another PCE, then upon expiration of the
State
   Timeout Interval, the state set by the PCE is flushed, which may
   cause change in the LSP state.

[LM] the last sentence is difficult to understand. How to understand
"flush the state MAY cause change in the LSP state"? It would like
talking about two different states in the PCC.
[LM] about "flushed", should we add "and revert to operator-defined
default parameters or behaviors"?

[...]

   If there is a standby PCE, the Redelegation Timeout may be set to
0
   through policy on the PCC, causing the LSPs to be redelegated
   immediately to the PCC, which can delegate them immediately to the
   standby PCE.  Assuming the State Timeout Interval is greater than
the
   Redelegation Timeout, and assuming the standby PCE takes similar
   decisions as the failed PCE, the LSP state will be kept intact.

[LM] the first "assuming" is not an assumption but a requirement,
according to "The State Timeout Interval MUST be greater than or equal
to the Redelegation Timeout Interval"

5.8.1.  Passive Stateful PCE Path Computation Request/Response

                     +-+-+                    +-+-+
                     |PCC|                    |PCE|
                     +-+-+                    +-+-+
                       |                        |
   1) Path computation |----- PCReq message --->|
      request sent to  |                        |2) Path computation
      PCE              |                        |   request received,
                       |                        |   path computed
                       |                        |
                       |<---- PCRep message ----|3) Computed paths
                       |     (Positive reply)   |   sent to the PCC
                       |     (Negative reply)   |
   4) LSP Status change|                        |
      event            |                        |
                       |                        |
   5) LSP Status Report|----- PCRpt message --->|
      sent to all      |            .           |
      stateful PCEs    |            .           |
                       |            .           |
   6) Repeat for each  |----- PCRpt message --->|
      LSP status change|                        |
                       |                        |

     Figure 7: Passive Stateful PCE Path Computation Request/Response

[LM] in the figure, please use "state" instead of "status"


7.1.  OPEN Object

   This document defines one new optional TLVs for use in the OPEN
   Object.

s/one new optional TLVs/one new optional TLV

7.2.  SRP Object

   The SRP (Stateful PCE Request Parameters) object MUST be carried
   within PCUpd messages and MAY be carried within PCRpt and PCErr
   messages.  The SRP object is used to correlate between update
   requests sent by the PCE and the error reports and state reports
sent
   by the PCC.

[LM] Should we add the following text at the end of the section?

  "Optional TLVs may be included within the SRP object body. The 
   specification of such TLVs is outside the scope of this document."

7.3.  LSP Object

[...]

   TLVs that may be included in the LSP Object are described in the
   following sections.

[LM] I think that it is possible to add extra optional TLV, not
defined in this document. This should be clarified if I'm correct.


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Subject: [Pce] Benoit Claise's No Objection on draft-ietf-pce-stateful-pce-18: (with COMMENT)
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Benoit Claise has entered the following ballot position for
draft-ietf-pce-stateful-pce-18: No Objection

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----------------------------------------------------------------------
COMMENT:
----------------------------------------------------------------------

Below is Lionel's OPS DIR review.

I've pointed out some "issues" that might not be real issues for
people involved in PCE but that could be at least clarified for
readers of this document. Detailed comments are provided below.

Regards,

Lionel

********************
2.  Terminology

   This document uses the following terms defined in [RFC5440]: PCC,
   PCE, PCEP Peer, PCEP Speaker.

   This document uses the following terms defined in [RFC4655]: TED.

   This document uses the following terms defined in [RFC3031]: LSP.

   This document uses the following terms defined in
   [I-D.ietf-pce-stateful-pce-app]: Stateful PCE, Passive Stateful
PCE,
   Active Stateful PCE, Delegation, LSP State Database.

[LM] I didn't find a clear definition of the LSP state, except through
the definition of the LSP State database in ietf-pce-stateful-pce-app,
i.e.

   The second is the LSP
   State Database (LSP-DB), in which a PCE stores attributes of all
   active LSPs in the network, such as their paths through the
network,
   bandwidth/resource usage, switching types and LSP constraints.

As this document heavily relies on this LSP state concept, it could be
useful to (re-)define it in this document or to find a 
correct reference for it.


3.2.  Objectives

   The objectives for the protocol extensions to support stateful PCE
   described in this document are as follows:

[...]

   o  Allow a PCC to delegate control of its LSPs to an active
stateful
      PCE such that a given LSP is under the control of a single PCE
at
      any given time.  A PCC may revoke this delegation at any time
      during the lifetime of the LSP.  If LSP delegation is revoked
      while the PCEP session is up, the PCC MUST notify the PCE about
      the revocation.  A PCE may return an LSP delegation at any
point
      during the lifetime of the PCEP session.

[LM] I'm assuming that the PCE returning the delegation has also to
notify the PCC. If so, maybe:
     
     "the If LSP delegation is returned by the PCE while the PCEP 
      session is up, the PCE MUST notify the PCE about the
revocation."

[LM] the bullet point could be then splitted into two bullets, one for
PCC, one for PCE.

5.4.  Capability Advertisement

   During PCEP Initialization Phase, PCEP Speakers (PCE or PCC)
   advertise their support of stateful PCEP extensions.  A PCEP
Speaker
   includes the "Stateful PCE Capability" TLV, described in
   Section 7.1.1, in the OPEN Object to advertise its support for
PCEP
   stateful extensions.  The Stateful Capability TLV includes the
'LSP
   Update' Flag that indicates whether the PCEP Speaker supports LSP
   parameter updates.

   The presence of the Stateful PCE Capability TLV in PCC's OPEN
Object
   indicates that the PCC is willing to send LSP State Reports
whenever
   LSP parameters or operational status changes.

   The presence of the Stateful PCE Capability TLV in PCE's OPEN
message
   indicates that the PCE is interested in receiving LSP State
Reports
   whenever LSP parameters or operational status changes.

[LM] is it "willing/interested for" or just a capability indication?
It is not the same thing from a procedure point of view.

   The PCEP extensions for stateful PCEs MUST NOT be used if one or
both
   PCEP Speakers have not included the Stateful PCE Capability TLV in
   their respective OPEN message.  If the PCEP Speaker on the PCC
   supports the extensions of this draft but did not advertise this
   capability, then upon receipt of PCUpd message from the PCE, it
MUST
   generate a PCErr with error-type 19 (Invalid Operation),
error-value
   2 (Attempted LSP Update Request if the stateful PCE capability was
   not advertised)(see Section 8.5) and it SHOULD terminate the PCEP
   session.  If the PCEP Speaker on the PCE supports the extensions
of
   this draft but did not advertise this capability, then upon
receipt
   of a PCRpt message from the PCC, it MUST generate a PCErr with
error-
   type 19 (Invalid Operation), error-value 5 (Attempted LSP State
   Report if active stateful PCE capability was not advertised) (see
   Section 8.5) and it SHOULD terminate the PCEP session. 

[LM] why the recommendation for closing the session if an explicit
error is sent back? The session could remain open i.e. except stateful
PCEP extensions,everything else would be fine. If the session
termination is the right thing to do, as we are in a clear error case
(as the PCEP speaker should not send the report or the update), the
SHOULD should probably be a MUST hee. 

[LM] Is there any reason to use a specific error in such a case? The
PCE could just behave as a PCE not supporting the feature. Why is it
important for the supporting PCEP speaker to make the difference? The
generic behavior described in RFC5440 is not enough?

[LM] active/passive mode are not  advertized in PCEP.
s/if active stateful PCE capability was not advertised/if stateful PCE
capability was not advertised

>From RFC5440: "6.9.  Reception of Unknown Messages

   A PCEP implementation that receives an unrecognized PCEP message
MUST
   send a PCErr message with Error-value=2 (capability not
supported).

   If a PCC/PCE receives unrecognized messages at a rate equal or
   greater than MAX-UNKNOWN-MESSAGES unknown message requests per
   minute, the PCC/PCE MUST send a PCEP CLOSE message with close
   value="Reception of an unacceptable number of unknown PCEP
message".
   A RECOMMENDED value for MAX-UNKNOWN-MESSAGES is 5.  The PCC/PCE
MUST
   close the TCP session and MUST NOT send any further PCEP messages
on
   the PCEP session."

[LM] If it is the case, the error handling would be the same between a
PCEP speaker supporting the feature but not advertizing it and a PCEP
speaker not supporting the feature. And it would not be possible
possible to use the specific error responses to infer the capability
supported by the other node.

   Note that even if the update
   capability has not been advertised, a PCE can still accept LSP
Status
   Reports from a PCC and build and maintain an up to date view of
the
   state of the PCC's LSPs.

[LM] I don't undersand. Is it not in contradiction with
  
  "If the PCEP Speaker on the PCE supports the extensions of
   this draft but did not advertise this capability, then upon
receipt
   of a PCRpt message from the PCC, it MUST generate a PCErr with
error-
   type 19 (Invalid Operation), error-value 5 (Attempted LSP State
   Report if active stateful PCE capability was not advertised) (see
   Section 8.5) and it SHOULD terminate the PCEP session."

Or does it mean that there is another way than PCRpt message for the
PCC to send LSP status reports to the PCE?

[LM] In this section, it is not described how non-supporting PCEP
speaker will hanlded the new TLV. It could be said that unrecognized
TLVs will be ignored (as per RFC5440) and OPEN messages will be
handled as per RFC5440 (if the comment above is accepted).

[LM] Would it be useful to discover (using another TLV) whether the
PCE is an active/passive stateful PCE, as in IGP-based capabilities
discovery mechanism?

5.5.  IGP Extensions for Stateful PCE Capabilities Advertisement

   When PCCs are LSRs participating in the IGP (OSPF or IS-IS), and
PCEs
   are either LSRs or servers also participating in the IGP, an
   effective mechanism for PCE discovery within an IGP routing domain
   consists of utilizing IGP advertisements.  

[...]

   Note that while active and passive stateful PCE capabilities may
be
   advertised during discovery, PCEP Speakers that wish to use
stateful
   PCEP MUST negotiate stateful PCEP capabilities during PCEP session
   setup, as specified in the current document.  A PCC MAY initiate
   stateful PCEP capability negotiation at PCEP session setup even if
it
   did not receive any IGP PCE capability advertisements.
 
[LM] As said above, an as stated in section 5.4:
  "The PCEP extensions for stateful PCEs MUST NOT be used if one or
both
   PCEP Speakers have not included the Stateful PCE Capability TLV in
   their respective OPEN message."

What is the real added-value of this IGP-based mechanism? Only to be
able to identify active PCE/passive PCE mode?

5.6.  State Synchronization

[LM] "State" could be misleading. "LSP State Sync" would be more
approriate/accurate I think.

   The purpose of State Synchronization is to provide a
checkpoint-in-
   time state replica of a PCC's LSP state in a PCE.  State
   Synchronization is performed immediately after the Initialization
   phase ([RFC5440]).

   During State Synchronization, a PCC first takes a snapshot of the
   state of its LSPs state, then sends the snapshot to a PCE in a
   sequence of LSP State Reports.  Each LSP State Report sent during
   State Synchronization has the SYNC Flag in the LSP Object set to
1.
   The set of LSPs for which state is synchronized with a PCE is
   determined by advertised stateful PCEP capabilities and PCC's
local
   configuration (see more details in Section 9.1).

[LM] It seems that :

   "The set of LSPs for which state is synchronized"

should be:

   "The set of LSPs for which state is to be synchronized"

[LM] I don't see how the "advertised stateful PCEP capabilities" have
an effect on the set of LSP to synchronize. The capabilities adv is
only used to discover stateful PCE capabilities and see if the related
PCEP extensions can be used. The identification of the LSPs to
synchronize seems to be only based on policies configured in the PCC.

   The end of synchronization marker is a PCRpt message with the SYNC
   Flag set to 0 for an LSP Object with PLSP-ID equal to the reserved
   value 0 (see Section 7.3).  In this case, the LSP Object SHOULD
NOT
   include the SYMBOLIC-PATH-NAME TLV and SHOULD include the LSP-
   IDENTIFIERS TLV with the special value of all zeroes.  The PCRpt
   message MUST include an empty ERO as its intended path and SHOULD
NOT
   include the optional RRO object for its actual path.

[LM] What is the reason for the use of "SHOULD" here, instead of
"MUST"?

   If the PCC has
   no state to synchronize, it SHOULD only send the end of
   synchronization marker.

[LM] Is it when there is no active LSP? If it is, it could be useful
to clarify it. And it is maybe not so related to the text just before.
It could be clarified in a separate paragraph.

   A PCE SHOULD NOT send PCUpd messages to a PCC before State
   Synchronization is complete.  A PCC SHOULD NOT send PCReq messages
to
   a PCE before State Synchronization is complete.  This is to allow
the
   PCE to get the best possible view of the network before it starts
   computing new paths.

[LM] it is obviously assumed that this requirement is true for PCC/PCE
explicitly advertizing support of stateful PCE capability.

   If the PCC encounters a problem which prevents it from completing
the
   state transfer, it MUST send a PCErr message with error-type 20
(LSP
   State Synchronization Error) and error-value 5 (indicating an
   internal PCC error) to the PCE and terminate the session.

[LM] s/state transfer/LSP state synchornization

5.7.1.  Delegating an LSP

   A PCC delegates an LSP to a PCE by setting the Delegate flag in
LSP
   State Report to 1.  If the PCE does not accept the LSP Delegation,
it
   MUST immediately respond with an empty LSP Update Request which
has
   the Delegate flag set to 0.  If the PCE accepts the LSP
Delegation,
   it MUST set the Delegate flag to 1 when it sends an LSP Update
   Request for the delegated LSP (note that this may occur at a later
   time).  The PCE MAY also immediately acknowledge a delegation by
   sending an empty LSP Update Request which has the Delegate flag
set
   to 1.

[LM] if the delegation is not aceepted by the PCE, I assume that the
PCC should not set the Delegate flag in subsequent LSP state report.
If it is, this could be clarified somewhere in this section.

[..]

   Note that for an LSP to remain delegated to a PCE, the PCC MUST
set
   the Delegate flag to 1 on each LSP Status Report sent to the PCE.

[LM] s/each LSP Status Report/each LSP State Report for this LSP.

5.7.2.1.  Explicit Revocation

   When a PCC decides that a PCE is no longer permitted to modify an
   LSP, it revokes that LSP's delegation to the PCE.  A PCC may
revoke
   an LSP delegation at any time during the LSP's life time.  A PCC
   revoking an LSP delegation MAY immediately clear the LSP state
   provided by the PCE, but to avoid traffic loss, it SHOULD do so in
a
   make-before-break fashion.

[LM] After PCE delegation revocation, is there really a requirement
for LSP state clean-up? The revocation is used to remove the
authorization of LSP state update to the PCE but I don't see why the
PCC would clear LSP state after revocation. The LSP state can be
updated using operator-defined default parameters, right?

   If the PCC has received but not yet acted
   on PCUpd messages from the PCE for the LSP whose delegation is
being
   revoked, then it SHOULD ignore these PCUpd messages when
processing
   the message queue.  All effects of all messages for which
processing
   started before the revocation took place MUST be allowed to
complete
   and the result MUST be given the same treatment as any LSP that
had
   been previously delegated to the PCE (e.g. the state MAY be
   immediately cleared).  

[LM] If I correctly understood the text above, after revocation of the
PCE delegation,
- any PCUpd should be rejected and not ignored
- the LSP state(s) that was delegated to the PCE cannot be changed
until all the messages in the message queue have been processed. 

If I'm correct, the text above could be clarified.  

   Any further PCUpd messages from the PCE are
   handled according to the PCUpd procedures described in this
document.

[LM] Not understood. Further PCUpd "will result in the PCC sending a
PCErr message" as said after the figure.

5.7.2.2.  Revocation on Redelegation Timeout

   When a PCC's PCEP session with a PCE terminates unexpectedly, the
PCC
   MUST wait the time interval specified in Redelegation Timeout
   Interval before revoking LSP delegations to that PCE and
attempting
   to redelegate LSPs to an alternate PCE.  If a PCEP session with
the
   original PCE can be reestablished before the Redelegation Timeout
   Interval timer expires, LSP delegations to the PCE remain intact.

[LM] In case of PCEP session interruption, is there a requirement for
the PCE to update delegated LSP states in order to ensure the
synchronization between states in the PCE and in the PCC? 

   Likewise, when a PCC's PCEP session with a PCE terminates
   unexpectedly, the PCC MUST wait for the State Timeout Interval
before
   flushing any LSP state associated with that PCE.

[LM] it should be clarified that the "flushing" applies only if there
is no other PCE. Otherwise, see section 5.7.4

   Note that the State
   Timeout Interval timer may expire before the PCC has redelegated
the
   LSPs to another PCE, for example if a PCC is not connected to any
   active stateful PCE or if no connected active stateful PCE accepts
   the delegation.  

[LM] Not sure to understand. Is it "if a PCC is not connected to any
OTHER active stateful PCE or if no OTHER connected active stateful PCE
accepts the delegation?

   In this case, the PCC MUST flush any LSP state set
   by the PCE upon expiration of the State Timeout Interval and
revert
   to operator-defined default parameters or behaviors.  This
operation
   SHOULD be done in a make-before-break fashion.

[LM] I think it is important to make the distinction between PCC with
only one PCE and PCC with N PCE. The "Note that" could be put in a
separate section.

   The State Timeout Interval MUST be greater than or equal to the
   Redelegation Timeout Interval and MAY be set to infinity (meaning
   that until the PCC specifically takes action to change the
parameters
   set by the PCE, they will remain intact).

[LM] reading "the State Timeout Interval timer may expire before the
PCC has redelegated the LSPs to another PCE" could be understood as
STI timer < RTI timer. And here, it is stated STI timer >= RTI timer.
Depending on the clarification on the previous comment, this text
could be also clarified (or not)

5.7.3.  Returning a Delegation

   In order to keep a delegation, a PCE MUST set the Delegate flag to
1
   on each LSP Update Request sent to the PCC.  A PCE that no longer
   wishes to update an LSP's parameters SHOULD return the LSP
delegation
   back to the PCC by sending an empty LSP Update Request which has
the
   Delegate flag set to 0.  If a PCC receives an LSP Update Request
with
   the Delegate flag set to 0 (whether the LSP Update Request is
empty
   or not), it MUST treat this as a delegation return.

                     +-+-+                    +-+-+
                     |PCC|                    |PCE|
                     +-+-+                    +-+-+
                       |                        |
                       |---PCRpt, Delegate=1--->| LSP delegated
                       |            .           |
                       |            .           |
                       |            .           |
                       |<--PCUpd, Delegate=0----| Delegation returned
                       |                        |
                       |---PCRpt, Delegate=0--->| No delegation for
LSP
                       |                        |

                     Figure 6: Returning a Delegation

   If a PCC cannot delegate an LSP to a PCE (for example, if a PCC is
   not connected to any active stateful PCE or if no connected active
   stateful PCE accepts the delegation), the LSP delegation on the
PCC
   will time out within a configurable Redelegation Timeout Interval
and
   the PCC MUST flush any LSP state set by a PCE at the expiration of
   the State Timeout Interval.

[LM] same comment: is it "for example, if a PCC is not connected to
any OTHER active stateful PCE or if no OTHER connected active stateful
PCE accepts the delegation"?

[LM] "the PCC MUST flush any LSP state set" should be completed by
"and revert to operator-defined default parameters or behaviors",
right?

5.7.5.  Redelegation on PCE Failure

[...]

   If the PCE crashes but recovers within the Redelegation Timeout,
both
   the delegation state and the LSP state are kept intact.

[LM] "Recover" here seems to be associated with the PCEP session (as
linked to the Redelegation Timeout), not with the LSP states
maintained by the PCE.

[LM] How can the PCC be ensured that the PCE has not been impacted by
the stop/restart and that LSP states are intact? Is there any need for
a sanity check?

   If the PCE crashes but does not recover within the Redelegation
   Timeout, the delegation state is returned to the PCC.  If the PCC
can
   redelegate the LSPs to another PCE, and that PCE accepts the
   delegations, there will be no change in LSP state.  If the PCC
cannot
   redelegate the LSPs to another PCE, then upon expiration of the
State
   Timeout Interval, the state set by the PCE is flushed, which may
   cause change in the LSP state.

[LM] the last sentence is difficult to understand. How to understand
"flush the state MAY cause change in the LSP state"? It would like
talking about two different states in the PCC.
[LM] about "flushed", should we add "and revert to operator-defined
default parameters or behaviors"?

[...]

   If there is a standby PCE, the Redelegation Timeout may be set to
0
   through policy on the PCC, causing the LSPs to be redelegated
   immediately to the PCC, which can delegate them immediately to the
   standby PCE.  Assuming the State Timeout Interval is greater than
the
   Redelegation Timeout, and assuming the standby PCE takes similar
   decisions as the failed PCE, the LSP state will be kept intact.

[LM] the first "assuming" is not an assumption but a requirement,
according to "The State Timeout Interval MUST be greater than or equal
to the Redelegation Timeout Interval"

5.8.1.  Passive Stateful PCE Path Computation Request/Response

                     +-+-+                    +-+-+
                     |PCC|                    |PCE|
                     +-+-+                    +-+-+
                       |                        |
   1) Path computation |----- PCReq message --->|
      request sent to  |                        |2) Path computation
      PCE              |                        |   request received,
                       |                        |   path computed
                       |                        |
                       |<---- PCRep message ----|3) Computed paths
                       |     (Positive reply)   |   sent to the PCC
                       |     (Negative reply)   |
   4) LSP Status change|                        |
      event            |                        |
                       |                        |
   5) LSP Status Report|----- PCRpt message --->|
      sent to all      |            .           |
      stateful PCEs    |            .           |
                       |            .           |
   6) Repeat for each  |----- PCRpt message --->|
      LSP status change|                        |
                       |                        |

     Figure 7: Passive Stateful PCE Path Computation Request/Response

[LM] in the figure, please use "state" instead of "status"


7.1.  OPEN Object

   This document defines one new optional TLVs for use in the OPEN
   Object.

s/one new optional TLVs/one new optional TLV

7.2.  SRP Object

   The SRP (Stateful PCE Request Parameters) object MUST be carried
   within PCUpd messages and MAY be carried within PCRpt and PCErr
   messages.  The SRP object is used to correlate between update
   requests sent by the PCE and the error reports and state reports
sent
   by the PCC.

[LM] Should we add the following text at the end of the section?

  "Optional TLVs may be included within the SRP object body. The 
   specification of such TLVs is outside the scope of this document."

7.3.  LSP Object

[...]

   TLVs that may be included in the LSP Object are described in the
   following sections.

[LM] I think that it is possible to add extra optional TLV, not
defined in this document. This should be clarified if I'm correct.



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----------------------------------------------------------------------
COMMENT:
----------------------------------------------------------------------

In 10.1, some references seem to be needed to
say how to do that authentication and
encryption. IIUC, that's a work in progress,
or is that right? If so, when's it likely to
be done and usable?



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----------------------------------------------------------------------
COMMENT:
----------------------------------------------------------------------

I generally agree with the secdir review.

TCP/AO is sadly fictional, so please don't
let's pretend it's usable to help here. Just
recommend TLS. (And add BCP195 too please.)



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From: Loa Andersson <loa@pi.nu>
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Subject: [Pce] FlexE side meeting on Monday 17, at 18.30 - 20.00
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Folks,

On Monday March 27 in Zurich B , there will be a FlexE side meeting
from 18:30-20:00. The meeting will be chaired bt Daniele Ceccarelli
and Nic Leyman. The initiative for this meeting were taken within the
group that works on a FlexE Framework document (draft-izh-ccamp-
flexe-fwk), and has been sponsored by Deborah Brungard and the ccamp
working group co-chairs.

The intent is to bring people up to speed on the FlexE technology and
try to understand what work will be appropriate to do in the IETF.

The agenda will be:

1. FlexE background and origins: Haomian Zheng
2. FlexE Technology Deep Dive:   Iftekhar Hussain
3. FlexE in the IETF:            Mach Chen
4. Open Mic

Each presentation is panned to last 20 min, and the Open Mic 30 min.


/Daniele, Fatai and Loa
-- 


Loa Andersson                        email: loa@mail01.huawei.com
Senior MPLS Expert                          loa@pi.nu
Huawei Technologies (consultant)     phone: +46 739 81 21 64


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CC: Ignas Bagdonas <ibagdona@gmail.com>, "ccamp-chairs@tools.ietf.org" <ccamp-chairs@tools.ietf.org>, Deborah A Brungard <db3546@att.com>, "Andrew G. Malis" <agmalis@gmail.com>, "n.leymann@telekom.de" <N.Leymann@telekom.de>, "draft-izh-ccamp-flexe-fwk@ietf.org" <draft-izh-ccamp-flexe-fwk@ietf.org>, Stewart Bryant <stewart.bryant@gmail.com>
Thread-Topic: [Teas] FlexE side meeting on Monday 17, at 18.30 - 20.00
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From: "YADLAPALLI, CHAITANYA" <cy098d@att.com>
To: "pce@ietf.org" <pce@ietf.org>
CC: "chaitanyayadlapalli@live.com" <chaitanyayadlapalli@live.com>, "Jay Karthik (jakarthi)" <jakarthi@cisco.com>, Dhruv Dhody <dhruv.ietf@gmail.com>, "Siva Sivabalan (msiva)" <msiva@cisco.com>
Thread-Topic: Ability for a Stateful PCE to request and obtain control of a LSP
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Date: Mon, 20 Mar 2017 11:10:28 +0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/pce/5jylurdM7ZPH4aO_YrEm428NeBI>
Subject: [Pce] Ability for a Stateful PCE to request and obtain control of a LSP
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WG:

We have posted updates to draft-raghu-pce-lsp-control-request-02.
https://tools.ietf.org/html/draft-raghu-pce-lsp-control-request-02


The following are the changes :
(1) Use case for load sharing when a new instance of virtual PCE is instant=
iated
(2) Security, Manageability and IANA Considerations
(3) Editorial Changes


We appreciate any feedback/comments.


Thanks,
Chaitanya

Chaitanya Yadlapalli
Domain 2.0 Architecture & Design
732-420-7977
cy098d@att.com<mailto:cy098d@att.com>
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<p class=3D"MsoNormal">WG:<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">We have posted updates to draft-raghu-pce-lsp-contro=
l-request-02.
<o:p></o:p></p>
<p class=3D"MsoNormal"><a href=3D"https://tools.ietf.org/html/draft-raghu-p=
ce-lsp-control-request-02">https://tools.ietf.org/html/draft-raghu-pce-lsp-=
control-request-02</a><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">The following are the changes :<span style=3D"font-f=
amily:&quot;Trebuchet MS&quot;,sans-serif;color:#0C343D"><o:p></o:p></span>=
</p>
<p class=3D"MsoNormal">(1) Use case for load sharing when a new instance of=
 virtual PCE is instantiated&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal">(2) Security, Manageability and IANA Considerations<=
o:p></o:p></p>
<p class=3D"MsoNormal">(3) Editorial Changes&nbsp;<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">We appreciate any feedback/comments.<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">Thanks,<o:p></o:p></p>
<p class=3D"MsoNormal">Chaitanya<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><b><span style=3D"font-family:&quot;Monotype Corsiva=
&quot;;color:#1F497D">Chaitanya Yadlapalli<o:p></o:p></span></b></p>
<p class=3D"MsoNormal"><span lang=3D"EN" style=3D"font-size:10.0pt;font-fam=
ily:&quot;Times New Roman&quot;,serif;color:#44546A">Domain 2.0 Architectur=
e &amp; Design</span><span style=3D"font-size:10.0pt;font-family:&quot;Time=
s New Roman&quot;,serif;color:#1F497D"><o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;Ti=
mes New Roman&quot;,serif;color:#1F497D">732-420-7977<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D"><a href=3D"mailto:cy09=
8d@att.com"><span style=3D"color:blue">cy098d@att.com</span></a></span><spa=
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<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;color:black">This co=
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--_004_CA0B675FC61D874D8A9EB2C7B5CEA787124B75EDMISOUT7MSGUSRDG_--


From nobody Mon Mar 20 10:43:13 2017
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Cc: db3546@att.com, "Jonathan Hardwick" <jonathan.hardwick@metaswitch.com>, pce@ietf.org, pce-chairs@ietf.org, jonathan.hardwick@metaswitch.com, "The IESG" <iesg@ietf.org>, draft-ietf-pce-inter-layer-ext@ietf.org, rfc-editor@rfc-editor.org
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Subject: [Pce] Protocol Action: 'Extensions to the Path Computation Element communication Protocol (PCEP) for Inter-Layer MPLS and GMPLS Traffic Engineering' to Proposed Standard (draft-ietf-pce-inter-layer-ext-12.txt)
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The IESG has approved the following document:
- 'Extensions to the Path Computation Element communication Protocol
   (PCEP) for Inter-Layer MPLS and GMPLS Traffic Engineering'
  (draft-ietf-pce-inter-layer-ext-12.txt) as Proposed Standard

This document is the product of the Path Computation Element Working
Group.

The IESG contact persons are Alvaro Retana, Alia Atlas and Deborah
Brungard.

A URL of this Internet Draft is:
https://datatracker.ietf.org/doc/draft-ietf-pce-inter-layer-ext/





Technical Summary

The Path Computation Element (PCE) provides path computation
 functions in support of traffic engineering in Multiprotocol Label
 Switching (MPLS) and Generalized MPLS (GMPLS) networks.
 MPLS and GMPLS networks may be constructed from layered service
 networks.  It is advantageous for overall network efficiency to
 provide end-to-end traffic engineering across multiple network layers
 through a process called inter-layer traffic engineering.  This
 document presents PCEP extensions for inter-layer traffic
 engineering.

Working Group Summary

There has been no particular controversy and the consensus behind
the document is good. 

Document Quality

 Some implementations exist.  There were a few detailed reviews during
 working group last call.

Personnel

   Who is the Document Shepherd for this document?  Jonathan Hardwick
   Who is the Responsible Area Director? Deborah Brungard

IESG Notes for the RFC Editor

In Section 2 "Those TE links exist at the layer/region boarder normally" should be "border"

In Section 8 on Security Considerations:
OLD
   Inter-layer traffic engineering with PCE may raise new security
   issues when PCE-PCE communication is done between different layer
   networks for inter-layer path computation.  Security issues may also
   exist when a single PCE is granted full visibility of TE information
   that applies to multiple layers.

   Path-Key-based mechanism defined in [RFC5520] MAY be applied to
   address the topology confidentiality between different layers.
NEW 
   Inter-layer traffic engineering with PCE may raise new security
   issues when PCE-PCE communication is done between different layer
   networks for inter-layer path computation because information about
   the networks at different layers will necessarily be exposed in
   computation results.  Furthermore, a PCE in one layer might use 
   computation requests to "probe" for information about the network
   in the other layer. 
   
   Security issues may also exist when a single PCE is granted full 
   visibility of TE information that applies to multiple layers.

   In both cases cited here, the security concerns are to do with 
   exposure of information about a network to parties outside that
   network.  These concerns relate to the privacy of the commercial
   details of a network, but it should also be understood that 
   distributing information about networks extends the attack surface
   for those networks.

   Path-Key-based mechanism defined in [RFC5520] MAY be applied to
   address the topology confidentiality between different layers.
END




From nobody Wed Mar 22 02:16:06 2017
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From: Julien Meuric <julien.meuric@orange.com>
Organization: Orange
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Subject: Re: [Pce] Building the PCE Agenda for IETF 98
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Dear PCE WG,

The agenda for our meeting on Monday is on-line:
https://datatracker.ietf.org/meeting/98/agenda/pce/

As you can see, the amount of slot requests largely exceeds the number
of threads in progress on the _list_. The difference should not be so
large: the _mailing list_ is open 24/7. As a result, we had to identify
priorities by trying to balance between hot topics, new items, active
discussion, recent face-to-face slots, etc.

If your I-D is beyond schedule, the hope for spare time to present is
tiny. Please, make use of the _mailing list_ to introduce your work or
share your progress (which scheduled presenters should do as well).

If you have a main stream slot, please send your slides to the chairs
and secretary by _Friday 24_.

Thank you,

Jon, JP & Julien


Feb. 27, 2017 - Julien Meuric:
> Hi all, > > The PCE WG session in Chicago is tentatively scheduled on Monday >
3:20pm. If you need meeting time to progress some work, please send a >
request to the chairs and secretary by Monday March 13, including: - >
the associated I-D(s), - the expected presenter, - the requested >
duration, - the motivation to request some face-to-face time as >
opposed to using the mailing list to progress your work. > > Please note
as well that Yang work should be directed to the joint >
MPLS/TEAS/CCAMP/PCE session. It is currently scheduled on Friday >
morning and Tarek, as the MPLS secretary, is taking care of the >
corresponding agenda (see Tarek's thread). > > Regards, > > Jon, JP &
Julien >


From nobody Wed Mar 22 07:06:36 2017
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To: "draft-izh-ccamp-flexe-fwk@ietf.org" <draft-izh-ccamp-flexe-fwk@ietf.org>,  "mpls-chairs@ietf.org" <mpls-chairs@ietf.org>, pce@ietf.org, TEAS WG <teas@ietf.org>, "routing-discussion@ietf.org" <routing-discussion@ietf.org>
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Cc: "ccamp-chairs@tools.ietf.org" <ccamp-chairs@tools.ietf.org>, "Andrew G. Malis" <agmalis@gmail.com>, Ignas Bagdonas <ibagdona@gmail.com>, "n.leymann@telekom.de" <N.Leymann@telekom.de>, Stewart Bryant <stewart.bryant@gmail.com>, Deborah A Brungard <db3546@att.com>, "ccamp@ietf.org" <ccamp@ietf.org>, "mpls@ietf.org" <mpls@ietf.org>
From: Loa Andersson <loa@pi.nu>
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Date: Wed, 22 Mar 2017 18:25:04 +0800
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Subject: [Pce] Change of date and time: Re: FlexE side meeting at a new time -- Tuesday at 18:45 in Zurich B
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Folks,

The FlexE side meeting (see below) has been rescheduled the new time
is Tuesday March 22 at 18:45 in Zurich B.

Sorry for ant inconveniences.

/Loa

On 2017-03-17 09:17, Loa Andersson wrote:
> Folks,
>
> On Monday March 27 in Zurich B , there will be a FlexE side meeting
> from 18:30-20:00. The meeting will be chaired bt Daniele Ceccarelli
> and Nic Leyman. The initiative for this meeting were taken within the
> group that works on a FlexE Framework document (draft-izh-ccamp-
> flexe-fwk), and has been sponsored by Deborah Brungard and the ccamp
> working group co-chairs.
>
> The intent is to bring people up to speed on the FlexE technology and
> try to understand what work will be appropriate to do in the IETF.
>
> The agenda will be:
>
> 1. FlexE background and origins: Haomian Zheng
> 2. FlexE Technology Deep Dive:   Iftekhar Hussain
> 3. FlexE in the IETF:            Mach Chen
> 4. Open Mic
>
> Each presentation is panned to last 20 min, and the Open Mic 30 min.
>
>
> /Daniele, Fatai and Loa

-- 


Loa Andersson                        email: loa@mail01.huawei.com
Senior MPLS Expert                          loa@pi.nu
Huawei Technologies (consultant)     phone: +46 739 81 21 64


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From: "SADANANDAN, VINOD" <vs037t@att.com>
To: "YADLAPALLI, CHAITANYA" <cy098d@att.com>, "pce@ietf.org" <pce@ietf.org>
CC: "chaitanyayadlapalli@live.com" <chaitanyayadlapalli@live.com>, "Siva Sivabalan (msiva)" <msiva@cisco.com>
Thread-Topic: Ability for a Stateful PCE to request and obtain control of a LSP
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Date: Wed, 22 Mar 2017 13:47:15 +0000
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Subject: Re: [Pce] Ability for a Stateful PCE to request and obtain control of a LSP
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Hi Co-Authors,

This draft looks interesting and I was wondering if you guys will be talkin=
g about the use cases pertaining to this ID at the upcoming IETF.

Vinod
AT&T Domain 2.0 Architecture & Design

This communication may contain information that is privileged, or confident=
ial. If you are not the intended recipient, please note that any disseminat=
ion, distribution or copying of this communication is strictly prohibited. =
 Anyone who receives this message in error should notify the sender immedia=
tely by telephone or by return e-mail and delete it from his or her compute=
r.



From: Pce [mailto:pce-bounces@ietf.org] On Behalf Of YADLAPALLI, CHAITANYA
Sent: Monday, March 20, 2017 7:10 AM
To: pce@ietf.org
Cc: chaitanyayadlapalli@live.com; Siva Sivabalan (msiva) <msiva@cisco.com>
Subject: [Pce] Ability for a Stateful PCE to request and obtain control of =
a LSP

***Security Advisory: This Message Originated Outside of AT&T ***
Reference http://cso.att.com/EmailSecurity/IDSP.html for more information.
WG:

We have posted updates to draft-raghu-pce-lsp-control-request-02.
https://tools.ietf.org/html/draft-raghu-pce-lsp-control-request-02<https://=
urldefense.proofpoint.com/v2/url?u=3Dhttps-3A__tools.ietf.org_html_draft-2D=
raghu-2Dpce-2Dlsp-2Dcontrol-2Drequest-2D02&d=3DDwMFAg&c=3DLFYZ-o9_HUMeMTSQi=
cvjIg&r=3D4z8xMwvimHxAJ_MMM5cjpg&m=3DvIAFFqqhVLEyGsufLV145M4uL0anT4BJc8a8Y6=
fEEIc&s=3DxlCC9FgqCRz6sY8qjCqqJ5QG-5vbj9NNhB_VkxVANWM&e=3D>


The following are the changes :
(1) Use case for load sharing when a new instance of virtual PCE is instant=
iated
(2) Security, Manageability and IANA Considerations
(3) Editorial Changes


We appreciate any feedback/comments.


Thanks,
Chaitanya

Chaitanya Yadlapalli
Domain 2.0 Architecture & Design
732-420-7977
cy098d@att.com<mailto:cy098d@att.com>
[cid:image003.jpg@01D2A2F1.4929F430]

This communication may contain information that is privileged, or confident=
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<div class=3D"WordSection1">
<p class=3D"MsoNormal">Hi Co-Authors,<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">This draft looks interesting and I was wondering if =
you guys will be talking about the use cases pertaining to this ID at the u=
pcoming IETF.<o:p></o:p></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></p>
<div>
<p class=3D"MsoNormal"><span lang=3D"EN" style=3D"font-size:10.0pt;color:bl=
ack">Vinod<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN" style=3D"font-size:10.0pt;color:bl=
ack">AT&amp;T Domain 2.0 Architecture &amp; Design</span><span style=3D"fon=
t-size:10.0pt;color:black"><o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;color:black"><o:p>&n=
bsp;</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:8.0pt;color:black">This com=
munication may contain information that is privileged, or confidential. If =
you are not the intended recipient, please note that any dissemination, dis=
tribution or copying of this communication
 is strictly prohibited.&nbsp; Anyone who receives this message in error sh=
ould notify the sender immediately by telephone or by return e-mail and del=
ete it from his or her computer.&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:8.0pt;color:black"><o:p>&nb=
sp;</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"><o:p>&nbsp;</o:p></spa=
n></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> Pce [mailto:pce-bounces@ietf.org] <b>On=
 Behalf Of
</b>YADLAPALLI, CHAITANYA<br>
<b>Sent:</b> Monday, March 20, 2017 7:10 AM<br>
<b>To:</b> pce@ietf.org<br>
<b>Cc:</b> chaitanyayadlapalli@live.com; Siva Sivabalan (msiva) &lt;msiva@c=
isco.com&gt;<br>
<b>Subject:</b> [Pce] Ability for a Stateful PCE to request and obtain cont=
rol of a LSP<o:p></o:p></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal" style=3D"margin-bottom:12.0pt">***<b><span style=3D"=
color:red">Security Advisory:</span></b> This Message Originated Outside of=
 AT&amp;T ***<br>
Reference <a href=3D"http://cso.att.com/EmailSecurity/IDSP.html">http://cso=
.att.com/EmailSecurity/IDSP.html</a> for more information.<span style=3D"fo=
nt-size:12.0pt"><o:p></o:p></span></p>
<p class=3D"MsoNormal">WG:<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">We have posted updates to draft-raghu-pce-lsp-contro=
l-request-02.
<o:p></o:p></p>
<p class=3D"MsoNormal"><a href=3D"https://urldefense.proofpoint.com/v2/url?=
u=3Dhttps-3A__tools.ietf.org_html_draft-2Draghu-2Dpce-2Dlsp-2Dcontrol-2Dreq=
uest-2D02&amp;d=3DDwMFAg&amp;c=3DLFYZ-o9_HUMeMTSQicvjIg&amp;r=3D4z8xMwvimHx=
AJ_MMM5cjpg&amp;m=3DvIAFFqqhVLEyGsufLV145M4uL0anT4BJc8a8Y6fEEIc&amp;s=3DxlC=
C9FgqCRz6sY8qjCqqJ5QG-5vbj9NNhB_VkxVANWM&amp;e=3D">https://tools.ietf.org/h=
tml/draft-raghu-pce-lsp-control-request-02</a><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">The following are the changes :<span style=3D"font-f=
amily:&quot;Trebuchet MS&quot;,sans-serif;color:#0C343D"><o:p></o:p></span>=
</p>
<p class=3D"MsoNormal">(1) Use case for load sharing when a new instance of=
 virtual PCE is instantiated&nbsp;<o:p></o:p></p>
<p class=3D"MsoNormal">(2) Security, Manageability and IANA Considerations<=
o:p></o:p></p>
<p class=3D"MsoNormal">(3) Editorial Changes&nbsp;<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">We appreciate any feedback/comments.<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">Thanks,<o:p></o:p></p>
<p class=3D"MsoNormal">Chaitanya<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><b><span style=3D"font-family:&quot;Monotype Corsiva=
&quot;;color:#1F497D">Chaitanya Yadlapalli<o:p></o:p></span></b></p>
<p class=3D"MsoNormal"><span lang=3D"EN" style=3D"font-size:10.0pt;font-fam=
ily:&quot;Times New Roman&quot;,serif;color:#44546A">Domain 2.0 Architectur=
e &amp; Design</span><span style=3D"font-size:10.0pt;font-family:&quot;Time=
s New Roman&quot;,serif;color:#1F497D"><o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;font-family:&quot;Ti=
mes New Roman&quot;,serif;color:#1F497D">732-420-7977<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D"><a href=3D"mailto:cy09=
8d@att.com"><span style=3D"color:blue">cy098d@att.com</span></a><o:p></o:p>=
</span></p>
<p class=3D"MsoNormal"><img border=3D"0" width=3D"168" height=3D"33" id=3D"=
Picture_x0020_1" src=3D"cid:image003.jpg@01D2A2F1.4929F430"><o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><span style=3D"font-size:10.0pt;color:black">This co=
mmunication may contain information that is privileged, or confidential. If=
 you are not the intended recipient, please note that any dissemination, di=
stribution or copying of this communication
 is strictly prohibited.&nbsp; Anyone who receives this message in error sh=
ould notify the sender immediately by telephone or by return e-mail and del=
ete it from his or her computer.&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:black"><o:p>&nbsp;</o:p></span>=
</p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
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To: "draft-izh-ccamp-flexe-fwk@ietf.org" <draft-izh-ccamp-flexe-fwk@ietf.org>,  "mpls-chairs@ietf.org" <mpls-chairs@ietf.org>, pce@ietf.org, TEAS WG <teas@ietf.org>, "routing-discussion@ietf.org" <routing-discussion@ietf.org>
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From: Loa Andersson <loa@pi.nu>
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Subject: Re: [Pce] Change of date and time: Re: FlexE side meeting at a new time -- Tuesday at 18:45 in Zurich B
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All,

Sorry to clog your in inboxes, but there is an error in the changes
message. The meeting will take place:

Tuesday March 28 at 18:45 in Zurich B
               ^^

/Loa

On 2017-03-22 18:25, Loa Andersson wrote:
> Folks,
>
> The FlexE side meeting (see below) has been rescheduled the new time
> is Tuesday March 22 at 18:45 in Zurich B.
>
> Sorry for ant inconveniences.
>
> /Loa
>
> On 2017-03-17 09:17, Loa Andersson wrote:
>> Folks,
>>
>> On Monday March 27 in Zurich B , there will be a FlexE side meeting
>> from 18:30-20:00. The meeting will be chaired bt Daniele Ceccarelli
>> and Nic Leyman. The initiative for this meeting were taken within the
>> group that works on a FlexE Framework document (draft-izh-ccamp-
>> flexe-fwk), and has been sponsored by Deborah Brungard and the ccamp
>> working group co-chairs.
>>
>> The intent is to bring people up to speed on the FlexE technology and
>> try to understand what work will be appropriate to do in the IETF.
>>
>> The agenda will be:
>>
>> 1. FlexE background and origins: Haomian Zheng
>> 2. FlexE Technology Deep Dive:   Iftekhar Hussain
>> 3. FlexE in the IETF:            Mach Chen
>> 4. Open Mic
>>
>> Each presentation is panned to last 20 min, and the Open Mic 30 min.
>>
>>
>> /Daniele, Fatai and Loa
>

-- 


Loa Andersson                        email: loa@mail01.huawei.com
Senior MPLS Expert                          loa@pi.nu
Huawei Technologies (consultant)     phone: +46 739 81 21 64


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From: Dhruv Dhody <dhruv.dhody@huawei.com>
To: "SADANANDAN, VINOD" <vs037t@att.com>, "YADLAPALLI, CHAITANYA" <cy098d@att.com>, "pce@ietf.org" <pce@ietf.org>
CC: "chaitanyayadlapalli@live.com" <chaitanyayadlapalli@live.com>, "Siva Sivabalan (msiva)" <msiva@cisco.com>
Thread-Topic: Ability for a Stateful PCE to request and obtain control of a LSP
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Date: Thu, 23 Mar 2017 13:10:45 +0000
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Subject: Re: [Pce] Ability for a Stateful PCE to request and obtain control of a LSP
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Hi Vinod,

Yes, this draft is on the PCE Agenda.
https://datatracker.ietf.org/meeting/98/agenda/pce/

Safe Travels!
Dhruv

From: Pce [mailto:pce-bounces@ietf.org] On Behalf Of SADANANDAN, VINOD
Sent: 22 March 2017 19:17
To: YADLAPALLI, CHAITANYA <cy098d@att.com>; pce@ietf.org
Cc: chaitanyayadlapalli@live.com; Siva Sivabalan (msiva) <msiva@cisco.com>
Subject: Re: [Pce] Ability for a Stateful PCE to request and obtain control=
 of a LSP

Hi Co-Authors,

This draft looks interesting and I was wondering if you guys will be talkin=
g about the use cases pertaining to this ID at the upcoming IETF.

Vinod
AT&T Domain 2.0 Architecture & Design

This communication may contain information that is privileged, or confident=
ial. If you are not the intended recipient, please note that any disseminat=
ion, distribution or copying of this communication is strictly prohibited. =
 Anyone who receives this message in error should notify the sender immedia=
tely by telephone or by return e-mail and delete it from his or her compute=
r.



From: Pce [mailto:pce-bounces@ietf.org] On Behalf Of YADLAPALLI, CHAITANYA
Sent: Monday, March 20, 2017 7:10 AM
To: pce@ietf.org<mailto:pce@ietf.org>
Cc: chaitanyayadlapalli@live.com<mailto:chaitanyayadlapalli@live.com>; Siva=
 Sivabalan (msiva) <msiva@cisco.com<mailto:msiva@cisco.com>>
Subject: [Pce] Ability for a Stateful PCE to request and obtain control of =
a LSP

***Security Advisory: This Message Originated Outside of AT&T ***
Reference http://cso.att.com/EmailSecurity/IDSP.html for more information.
WG:

We have posted updates to draft-raghu-pce-lsp-control-request-02.
https://tools.ietf.org/html/draft-raghu-pce-lsp-control-request-02<https://=
urldefense.proofpoint.com/v2/url?u=3Dhttps-3A__tools.ietf.org_html_draft-2D=
raghu-2Dpce-2Dlsp-2Dcontrol-2Drequest-2D02&d=3DDwMFAg&c=3DLFYZ-o9_HUMeMTSQi=
cvjIg&r=3D4z8xMwvimHxAJ_MMM5cjpg&m=3DvIAFFqqhVLEyGsufLV145M4uL0anT4BJc8a8Y6=
fEEIc&s=3DxlCC9FgqCRz6sY8qjCqqJ5QG-5vbj9NNhB_VkxVANWM&e=3D>


The following are the changes :
(1) Use case for load sharing when a new instance of virtual PCE is instant=
iated
(2) Security, Manageability and IANA Considerations
(3) Editorial Changes


We appreciate any feedback/comments.


Thanks,
Chaitanya

Chaitanya Yadlapalli
Domain 2.0 Architecture & Design
732-420-7977
cy098d@att.com<mailto:cy098d@att.com>
[cid:image002.jpg@01D2A404.0060BD10]

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ion, distribution or copying of this communication is strictly prohibited. =
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<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-family:&quot;Treb=
uchet MS&quot;,sans-serif">Hi Vinod,
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-family:&quot;Treb=
uchet MS&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-family:&quot;Treb=
uchet MS&quot;,sans-serif">Yes, this draft is on the PCE Agenda.
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-family:&quot;Treb=
uchet MS&quot;,sans-serif"><a href=3D"https://datatracker.ietf.org/meeting/=
98/agenda/pce/">https://datatracker.ietf.org/meeting/98/agenda/pce/</a><o:p=
></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-family:&quot;Treb=
uchet MS&quot;,sans-serif"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-family:&quot;Treb=
uchet MS&quot;,sans-serif">Safe Travels!
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-family:&quot;Treb=
uchet MS&quot;,sans-serif">Dhruv<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-family:&quot;Treb=
uchet MS&quot;,sans-serif"><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"> Pce [mailto:pce-bounces@ietf.org]
<b>On Behalf Of </b>SADANANDAN, VINOD<br>
<b>Sent:</b> 22 March 2017 19:17<br>
<b>To:</b> YADLAPALLI, CHAITANYA &lt;cy098d@att.com&gt;; pce@ietf.org<br>
<b>Cc:</b> chaitanyayadlapalli@live.com; Siva Sivabalan (msiva) &lt;msiva@c=
isco.com&gt;<br>
<b>Subject:</b> Re: [Pce] Ability for a Stateful PCE to request and obtain =
control of a LSP<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">Hi Co-Authors,<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 draft looks interesting an=
d I was wondering if you guys will be talking about the use cases pertainin=
g to this ID at the upcoming IETF.<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>
<p class=3D"MsoNormal"><span lang=3D"EN" style=3D"font-size:10.0pt;color:bl=
ack">Vinod<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN" style=3D"font-size:10.0pt;color:bl=
ack">AT&amp;T Domain 2.0 Architecture &amp; Design</span><span lang=3D"EN-U=
S" style=3D"font-size:10.0pt;color:black"><o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.0pt;color=
:black"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:8.0pt;color:=
black">This communication may contain information that is privileged, or co=
nfidential. If you are not the intended recipient, please note that any dis=
semination, distribution or copying of
 this communication is strictly prohibited.&nbsp; Anyone who receives this =
message in error should notify the sender immediately by telephone or by re=
turn e-mail and delete it from his or her computer.&nbsp;<o:p></o:p></span>=
</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:8.0pt;color:=
black"><o:p>&nbsp;</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>
<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"><b><span lang=3D"EN-US">From:</span></b><span lang=
=3D"EN-US"> Pce [<a href=3D"mailto:pce-bounces@ietf.org">mailto:pce-bounces=
@ietf.org</a>]
<b>On Behalf Of </b>YADLAPALLI, CHAITANYA<br>
<b>Sent:</b> Monday, March 20, 2017 7:10 AM<br>
<b>To:</b> <a href=3D"mailto:pce@ietf.org">pce@ietf.org</a><br>
<b>Cc:</b> <a href=3D"mailto:chaitanyayadlapalli@live.com">chaitanyayadlapa=
lli@live.com</a>; Siva Sivabalan (msiva) &lt;<a href=3D"mailto:msiva@cisco.=
com">msiva@cisco.com</a>&gt;<br>
<b>Subject:</b> [Pce] Ability for a Stateful PCE to request and obtain cont=
rol of a LSP<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" style=3D"margin-bottom:12.0pt"><span lang=3D"EN-US">=
***<b><span style=3D"color:red">Security Advisory:</span></b> This Message =
Originated Outside of AT&amp;T ***<br>
Reference <a href=3D"http://cso.att.com/EmailSecurity/IDSP.html">http://cso=
.att.com/EmailSecurity/IDSP.html</a> for more information.</span><span lang=
=3D"EN-US" style=3D"font-size:12.0pt"><o:p></o:p></span></p>
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<p class=3D"MsoNormal"><span lang=3D"EN-US">We have posted updates to draft=
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<o:p></o:p></span></p>
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</span><span lang=3D"EN-US" style=3D"font-family:&quot;Trebuchet MS&quot;,s=
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<p class=3D"MsoNormal"><span lang=3D"EN-US">(1) Use case for load sharing w=
hen a new instance of virtual PCE is instantiated&nbsp;<o:p></o:p></span></=
p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">(2) Security, Manageability and=
 IANA Considerations<o:p></o:p></span></p>
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From nobody Mon Mar 27 03:59:37 2017
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Subject: [Pce] I-D Action: draft-ietf-pce-stateful-sync-optimizations-10.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 Path Computation Element of the IETF.

        Title           : Optimizations of Label Switched Path State Synchronization Procedures for a Stateful PCE
        Authors         : Edward Crabbe
                          Ina Minei
                          Jan Medved
                          Robert Varga
                          Xian Zhang
                          Dhruv Dhody
	Filename        : draft-ietf-pce-stateful-sync-optimizations-10.txt
	Pages           : 25
	Date            : 2017-03-27

Abstract:
   A stateful Path Computation Element (PCE) has access to not only the
   information disseminated by the network's Interior Gateway Protocol
   (IGP), but also the set of active paths and their reserved resources
   for its computation.  The additional Label Switched Path (LSP) state
   information allows the PCE to compute constrained paths while
   considering individual LSPs and their interactions.  This requires a
   state synchronization mechanism between the PCE and the network, PCE
   and path computation clients (PCCs), and between cooperating PCEs.
   The basic mechanism for state synchronization is part of the stateful
   PCE specification.  This document presents motivations for
   optimizations to the base state synchronization procedure and
   specifies the required Path Computation Element Communication
   Protocol (PCEP) extensions.



The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-pce-stateful-sync-optimizations/

There are also htmlized versions available at:
https://tools.ietf.org/html/draft-ietf-pce-stateful-sync-optimizations-10
https://datatracker.ietf.org/doc/html/draft-ietf-pce-stateful-sync-optimizations-10

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-pce-stateful-sync-optimizations-10


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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--001a1135dafe85ce0a054bb96a39
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Dear authors, PCE WG

I am the shepherd for this document, Please find below my shepherd's review
of the aforementioned I-D.


* General

The document does not need much work to to progress, they are mainly
clarifications.

* Detailed comments.

Section 3.2
--
"Thus the PCEP session is secured via TLS from the
   start before exchange of any other PCEP message including the Open
   message."

This sentence comes after the reference to discovery procedures while it
refers to when the startTLS message is to be used.
This could be rephrased.
--
"Securing via TLS of an existing PCEP session is not
   permitted, the session must be closed and re-established with TLS as
   per the procedure described in this document"

 Should the must be replaced by MUST?


--
"If the PCEP speaker supports PCEPS but cannot establish a TLS
   connection for some reason"

I believe that in that case both speakers must support PCEPS in order for
them to send the startTLS and start TLS negotiation. Its unclear when those
errors can be sent, shouldn't they be sent after the TLS negotiations have
taken place?
This comment is repeated in the next sections/comments.

Section 3.3.

--
"On receiving a StartTLS message from the PCEP
   peer (i.e.  when the PCEP speaker has sent and received StartTLS
   message) it is ready to start TLS negotiation and establishment and
   move to steps described in Section 3.4."

>From section 3.2  a peer MAY also send Error-Type set to [TBA2 by IANA]
(PCEP StartTLS failure) and Error-value 3 (not without TLS) or 4 (ok
without TLS).
At which point of the PCEP session are the PCErr sent? is it in step 3 of
 section 3.4?


--
"Once the TCP connection has been successfully established and the
   StartTLS message sent, the sender MUST start a timer called
   StartTLSWait timer, after the expiration of which, if no StartTLS
   message has been received, it sends a PCErr message and releases the
   TCP connection with Error-Type set to [TBA2 by IANA] and Error-value
   set to 5 (no StartTLS message received before the expiration of the
   StartTLSWait timer)."

the following text would be more clear in my opinion

"Once the TCP connection has been successfully established and the
   StartTLS message sent, the sender MUST start a timer called
   StartTLSWait timer, after the expiration of which, if no StartTLS
   message has been received, it MUST send a PCErr message and releases the
   TCP connection with Error-Type set to [TBA2 by IANA] and Error-value
   set to 5 (no StartTLS message received before the expiration of the
   StartTLSWait timer)."

Section 3.5



--
"PCEPS implementations SHOULD provide mechanisms for
   associating peer identities with different levels of access and/or
   authoritativeness, and they MUST provide a mechanism for establish a
   default level for properly identified peers. "

typo "for establish" -> "for establishing"

"PCEPS implementations SHOULD provide mechanisms for
   associating peer identities with different levels of access and/or
   authoritativeness, and they MUST provide a mechanism for establishing a
   default level for properly identified peers. "

--

" Implementations
   that want to support a wide variety of trust models should expose as
   many details of the presented certificate to the administrator as
   possible so that the trust model can be implemented by the
   administrator. "

should -> SHOULD or it could be rephrased if its not the intent.

--
"As a suggestion, at least the following parameters of
   the X.509 certificate should be exposed:"

it can be rephrased as
"At least the following parameters of
   the X.509 certificate SHOULD be exposed:"

or

"its RECOMMENDED that at least the following parameters of
   the X.509 certificate are exposed:"


Section 3.6
--

Section 3.2 defines error-values for TLS negotiation failures, should they
be used in that section? i.e the peer SHOULD send a PCErr and MUST
terminate the session?


Section 4.

--
I am not sure if the second and third paragraph are relevant for PCEPS
session establishement. Could you indicate what is the relation between
PCEPS and dns resolution?


Section 6.1

--

Following rfc5226, please  clarify the request for new allocation and
indicate which registry need to be updated, for instance:

 IANA is requested to allocate new message types within the "PCEP
 Messages" sub-registry of the PCEP Numbers registry, as follows:

                 Value     Meaning
         Reference
                   TBA1      The Start TLS Message (StartTLS)         This
document

Section 6.2

--
same as section 6.1, a possible text can be:

IANA is requested to allocate new Error Types and Error Values within
   the " PCEP-ERROR Object Error Types and Values" sub-registry of the
   PCEP Numbers registry, as follows:



Section 8.2

--
should the YANG modules also be updated?


Thanks,
Cyril

--001a1135dafe85ce0a054bb96a39
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div>Dear authors, PCE WG</div><div><br></div><div>I am th=
e shepherd for this document, Please find below my shepherd&#39;s review of=
 the aforementioned I-D.</div><div><br></div><div><br></div><div>* General<=
/div><div><br></div><div>The document does not need much work to to progres=
s, they are mainly clarifications.</div><div><br></div><div>* Detailed comm=
ents.</div><div><br></div><div>Section 3.2</div><div>--</div><div>&quot;Thu=
s the PCEP session is secured via TLS from the</div><div>=C2=A0 =C2=A0start=
 before exchange of any other PCEP message including the Open</div><div>=C2=
=A0 =C2=A0message.&quot;</div><div><br></div><div>This sentence comes after=
 the reference to discovery procedures while it refers to when the startTLS=
 message is to be used.</div><div>This could be rephrased.</div><div>--</di=
v><div>&quot;Securing via TLS of an existing PCEP session is not</div><div>=
=C2=A0 =C2=A0permitted, the session must be closed and re-established with =
TLS as</div><div>=C2=A0 =C2=A0per the procedure described in this document&=
quot;</div><div><br></div><div>=C2=A0Should the must be replaced by MUST?</=
div><div><br></div><div><br></div><div>--</div><div>&quot;If the PCEP speak=
er supports PCEPS but cannot establish a TLS</div><div>=C2=A0 =C2=A0connect=
ion for some reason&quot;</div><div><br></div><div>I believe that in that c=
ase both speakers must support PCEPS in order for them to send the startTLS=
 and start TLS negotiation. Its unclear when those errors can be sent, shou=
ldn&#39;t they be sent after the TLS negotiations have taken place?</div><d=
iv>This comment is repeated in the next sections/comments.</div><div><br></=
div><div>Section 3.3.</div><div><br></div><div>--</div><div>&quot;On receiv=
ing a StartTLS message from the PCEP</div><div>=C2=A0 =C2=A0peer (i.e. =C2=
=A0when the PCEP speaker has sent and received StartTLS</div><div>=C2=A0 =
=C2=A0message) it is ready to start TLS negotiation and establishment and</=
div><div>=C2=A0 =C2=A0move to steps described in Section 3.4.&quot;</div><d=
iv><br></div><div>From section 3.2 =C2=A0a peer MAY also send Error-Type se=
t to [TBA2 by IANA] (PCEP StartTLS failure) and Error-value 3 (not without =
TLS) or 4 (ok without TLS).</div><div>At which point of the PCEP session ar=
e the PCErr sent? is it in step 3 of =C2=A0section 3.4?</div><div><br></div=
><div><br></div><div>--</div><div>&quot;Once the TCP connection has been su=
ccessfully established and the</div><div>=C2=A0 =C2=A0StartTLS message sent=
, the sender MUST start a timer called</div><div>=C2=A0 =C2=A0StartTLSWait =
timer, after the expiration of which, if no StartTLS</div><div>=C2=A0 =C2=
=A0message has been received, it sends a PCErr message and releases the</di=
v><div>=C2=A0 =C2=A0TCP connection with Error-Type set to [TBA2 by IANA] an=
d Error-value</div><div>=C2=A0 =C2=A0set to 5 (no StartTLS message received=
 before the expiration of the</div><div>=C2=A0 =C2=A0StartTLSWait timer).&q=
uot;</div><div><br></div><div>the following text would be more clear in my =
opinion</div><div><br></div><div>&quot;Once the TCP connection has been suc=
cessfully established and the</div><div>=C2=A0 =C2=A0StartTLS message sent,=
 the sender MUST start a timer called</div><div>=C2=A0 =C2=A0StartTLSWait t=
imer, after the expiration of which, if no StartTLS</div><div>=C2=A0 =C2=A0=
message has been received, it MUST send a PCErr message and releases the</d=
iv><div>=C2=A0 =C2=A0TCP connection with Error-Type set to [TBA2 by IANA] a=
nd Error-value</div><div>=C2=A0 =C2=A0set to 5 (no StartTLS message receive=
d before the expiration of the</div><div>=C2=A0 =C2=A0StartTLSWait timer).&=
quot;</div><div><br></div><div>Section 3.5</div><div><br></div><div><br></d=
iv><div><br></div><div>--</div><div>&quot;PCEPS implementations SHOULD prov=
ide mechanisms for</div><div>=C2=A0 =C2=A0associating peer identities with =
different levels of access and/or</div><div>=C2=A0 =C2=A0authoritativeness,=
 and they MUST provide a mechanism for establish a</div><div>=C2=A0 =C2=A0d=
efault level for properly identified peers. &quot;</div><div><br></div><div=
>typo &quot;for establish&quot; -&gt; &quot;for establishing&quot;</div><di=
v><br></div><div>&quot;PCEPS implementations SHOULD provide mechanisms for<=
/div><div>=C2=A0 =C2=A0associating peer identities with different levels of=
 access and/or</div><div>=C2=A0 =C2=A0authoritativeness, and they MUST prov=
ide a mechanism for establishing a</div><div>=C2=A0 =C2=A0default level for=
 properly identified peers. &quot;</div><div><br></div><div>--</div><div><b=
r></div><div>&quot; Implementations</div><div>=C2=A0 =C2=A0that want to sup=
port a wide variety of trust models should expose as</div><div>=C2=A0 =C2=
=A0many details of the presented certificate to the administrator as</div><=
div>=C2=A0 =C2=A0possible so that the trust model can be implemented by the=
</div><div>=C2=A0 =C2=A0administrator. &quot;</div><div><br></div><div>shou=
ld -&gt; SHOULD or it could be rephrased if its not the intent.</div><div><=
br></div><div>--</div><div>&quot;As a suggestion, at least the following pa=
rameters of</div><div>=C2=A0 =C2=A0the X.509 certificate should be exposed:=
&quot;</div><div><br></div><div>it can be rephrased as=C2=A0</div><div>&quo=
t;At least the following parameters of</div><div>=C2=A0 =C2=A0the X.509 cer=
tificate SHOULD be exposed:&quot;</div><div><br></div><div>or</div><div><br=
></div><div>&quot;its RECOMMENDED that at least the following parameters of=
</div><div>=C2=A0 =C2=A0the X.509 certificate are exposed:&quot;</div><div>=
<br></div><div><br></div><div>Section 3.6</div><div>--</div><div><br></div>=
<div>Section 3.2 defines error-values for TLS negotiation failures, should =
they be used in that section? i.e the peer SHOULD send a PCErr and MUST ter=
minate the session?</div><div><br></div><div><br></div><div>Section 4.</div=
><div><br></div><div>--</div><div>I am not sure if the second and third par=
agraph are relevant for PCEPS session establishement. Could you indicate wh=
at is the relation between PCEPS and dns resolution?</div><div><br></div><d=
iv><br></div><div>Section 6.1</div><div><br></div><div>--</div><div><br></d=
iv><div>Following rfc5226, please =C2=A0clarify the request for new allocat=
ion and indicate which registry need to be updated, for instance:</div><div=
><br></div><div>=C2=A0IANA is requested to allocate new message types withi=
n the &quot;PCEP =C2=A0Messages&quot; sub-registry of the PCEP Numbers regi=
stry, as follows:</div><div><br></div><div>=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0Value =C2=A0 =C2=A0 Meaning =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=A0Reference</div><div>=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0 =C2=A0 =C2=A0TBA1 =C2=A0 =C2=A0 =C2=A0The Start TLS Message (=
StartTLS) =C2=A0 =C2=A0 =C2=A0 =C2=A0 This document</div><div><br></div><di=
v>Section 6.2</div><div><br></div><div>--</div><div>same as section 6.1, a =
possible text can be:</div><div><br></div><div>IANA is requested to allocat=
e new Error Types and Error Values within</div><div>=C2=A0 =C2=A0the &quot;=
 PCEP-ERROR Object Error Types and Values&quot; sub-registry of the</div><d=
iv>=C2=A0 =C2=A0PCEP Numbers registry, as follows:</div><div><br></div><div=
><br></div><div><br></div><div>Section 8.2</div><div><br></div><div>--</div=
><div>should the YANG modules also be updated?</div><div><br></div><div><br=
></div><div>Thanks,=C2=A0</div><div>Cyril</div></div>

--001a1135dafe85ce0a054bb96a39--


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Subject: [Pce] Protocol Action: 'Optimizations of Label Switched Path State Synchronization Procedures for a Stateful PCE' to Proposed Standard (draft-ietf-pce-stateful-sync-optimizations-10.txt)
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The IESG has approved the following document:
- 'Optimizations of Label Switched Path State Synchronization Procedures
   for a Stateful PCE'
  (draft-ietf-pce-stateful-sync-optimizations-10.txt) as Proposed
Standard

This document is the product of the Path Computation Element Working
Group.

The IESG contact persons are Alvaro Retana, Alia Atlas and Deborah
Brungard.

A URL of this Internet Draft is:
https://datatracker.ietf.org/doc/draft-ietf-pce-stateful-sync-optimizations/





Technical Summary

A stateful Path Computation Element (PCE) is a PCE whose path computations
take into account the resources and interactions of the currently active paths in
the network.  A stateful PCE uses a reliable state synchronization mechanism to
learn the set of active paths from its Path Computation Clients (PCCs) and peer
stateful PCEs.  The basic state synchronization procedure is part of the stateful
PCE specification.  This draft describes various optional optimizations to the
state synchronization procedure, and specifies the required Path Computation
Element Communication Protocol (PCEP) extensions.

Working Group Summary

There was some strong opposition from members of the WG to publishing these
optimizations in the base stateful PCE specification, because they wanted to keep
the base specification as streamlined as possible.  The WG therefore decided instead
to publish these optimizations separately from the base stateful PCE protocol.  Apart
from this, there were no particular points of contention in the WG process.  The consensus
behind publication of this document as a Standards Track RFC appears solid.
 
Document Quality

There are at least two implementations of the optimizations described in
this document.  The document has had several reviews by members of the
working group.


Personnel

Jonathan Hardwick is the Document Shepherd.
Deborah Brungard is the Responsible Area Director.


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From: Qin Wu <bill.wu@huawei.com>
To: "pce@ietf.org" <pce@ietf.org>
Thread-Topic: Update of draft-wu-pce-traffic-steering-sfc-11
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Date: Mon, 27 Mar 2017 23:42:23 +0000
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<p>Hi, All:</p>
<p>Didn't get time to introduce PCEP extension for SFC support:</p>
<p>Here is the update of <a href=3D"https://tools.ietf.org/html/draft-wu-pc=
e-traffic-steering-sfc-11">
draft-wu-pce-traffic-steering-sfc-11</a>, </p>
<p><a href=3D"https://www.ietf.org/proceedings/98/slides/slides-98-pce-42-p=
cep-extensions-for-sfc-00.pdf">https://www.ietf.org/proceedings/98/slides/s=
lides-98-pce-42-pcep-extensions-for-sfc-00.pdf</a></p>
<p>This draft provides PCEP extension to address Path computation and class=
ification requirements defined in RFC7665 and
</p>
<p>I-D.ietf-sfc-control-plane. It is also&nbsp;aligned with SFC control pla=
ne and teas WG pce central control drafts.</p>
<p>&nbsp;</p>
<p>This draft has been around several IETF meetings and became stable when =
several dependent documents have been solid as basis.</p>
<p>Before this meeting, we recieved a few comments from&nbsp;SFC chairs and=
 it has been addressed in v-(11).</p>
<p>We are happy to recieve additional comments if you have. Thanks!</p>
<p>&nbsp;</p>
<p>-Qin</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>&nbsp;</p>
</div>
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From nobody Mon Mar 27 17:50:50 2017
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From: "Zhuangyan (Yan)" <zhuangyan.zhuang@huawei.com>
To: "pce@ietf.org" <pce@ietf.org>
CC: "draft-zhuang-pce-stateful-pce-lsp-scheduling@ietf.org" <draft-zhuang-pce-stateful-pce-lsp-scheduling@ietf.org>
Thread-Topic: PCEP extention for LSP scheduling
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Date: Tue, 28 Mar 2017 00:50:38 +0000
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Hi all,

As presented this afternoon, the merged version of PCEP extension for LSP s=
chedule is available now at:

URL:            https://www.ietf.org/internet-drafts/draft-zhuang-pce-state=
ful-pce-lsp-scheduling-05.txt

Status:         https://datatracker.ietf.org/doc/draft-zhuang-pce-stateful-=
pce-lsp-scheduling/

This is a work since IETF 93 with two drafts stating the solution and valua=
ble comments on problem and motivation from f2f meeting/mailing list.

For the problem and architecture discussion, it is discussed and solved in =
teas draft at https://datatracker.ietf.org/doc/html/draft-ietf-teas-schedul=
ed-resources.
And now the two draft also worked together to provide a solution in this me=
rged version.

Please take a look and feel free to let us know your comments.

Thank you.

Yan (on behalf of co-authors and contributors)


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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">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">As presented this afternoon, th=
e merged version of PCEP extension for LSP schedule is available now at:<o:=
p></o:p></span></p>
<p class=3D"MsoPlainText"><span lang=3D"EN-US">URL:&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <a href=3D"https://www.ietf.org/=
internet-drafts/draft-zhuang-pce-stateful-pce-lsp-scheduling-05.txt">
https://www.ietf.org/internet-drafts/draft-zhuang-pce-stateful-pce-lsp-sche=
duling-05.txt</a><o:p></o:p></span></p>
<p class=3D"MsoPlainText"><span lang=3D"EN-US">Status:&nbsp;&nbsp;&nbsp;&nb=
sp; &nbsp;&nbsp;&nbsp;&nbsp;<a href=3D"https://datatracker.ietf.org/doc/dra=
ft-zhuang-pce-stateful-pce-lsp-scheduling/">https://datatracker.ietf.org/do=
c/draft-zhuang-pce-stateful-pce-lsp-scheduling/</a><o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">This is a work since IETF 93 wi=
th two drafts stating the solution and valuable comments on problem and mot=
ivation from f2f meeting/mailing list.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" align=3D"left" style=3D"text-align:left"><span lang=
=3D"EN-US">For the problem and architecture discussion, it is discussed and=
 solved in teas draft at
<a href=3D"https://datatracker.ietf.org/doc/html/draft-ietf-teas-scheduled-=
resources">
https://datatracker.ietf.org/doc/html/draft-ietf-teas-scheduled-resources</=
a>.<o:p></o:p></span></p>
<p class=3D"MsoNormal" align=3D"left" style=3D"text-align:left"><span lang=
=3D"EN-US">And now the two draft also worked together to provide a solution=
 in this merged version.<o:p></o:p></span></p>
<p class=3D"MsoNormal" align=3D"left" style=3D"text-align:left"><span lang=
=3D"EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" align=3D"left" style=3D"text-align:left"><span lang=
=3D"EN-US">Please take a look and feel free to let us know your comments.<o=
:p></o:p></span></p>
<p class=3D"MsoNormal" align=3D"left" style=3D"text-align:left"><span lang=
=3D"EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" align=3D"left" style=3D"text-align:left"><span lang=
=3D"EN-US">Thank you.<o:p></o:p></span></p>
<p class=3D"MsoNormal" align=3D"left" style=3D"text-align:left"><span lang=
=3D"EN-US">&nbsp;<o:p></o:p></span></p>
<p class=3D"MsoNormal" align=3D"left" style=3D"text-align:left"><span lang=
=3D"EN-US">Yan (on behalf of co-authors and contributors)<o:p></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: Dhruv Dhody <dhruv.ietf@gmail.com>
Date: Mon, 27 Mar 2017 23:05:02 -0500
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To: Cyril Margaria <cyril.margaria@gmail.com>
Cc: draft-ietf-pce-pceps@ietf.org, "pce@ietf.org" <pce@ietf.org>,  "dhruv.dhody@huawei.com" <dhruv.dhody@huawei.com>
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Hi Cyril,

Thanks for being our shepherd and providing review comments. Please see
inline...

On Mon, Mar 27, 2017 at 12:10 PM, Cyril Margaria <cyril.margaria@gmail.com>
wrote:

> Dear authors, PCE WG
>
> I am the shepherd for this document, Please find below my shepherd's
> review of the aforementioned I-D.
>
>
> * General
>
> The document does not need much work to to progress, they are mainly
> clarifications.
>
> * Detailed comments.
>
> Section 3.2
> --
> "Thus the PCEP session is secured via TLS from the
>    start before exchange of any other PCEP message including the Open
>    message."
>
> This sentence comes after the reference to discovery procedures while it
> refers to when the startTLS message is to be used.
> This could be rephrased.
>

=E2=80=8B[Dhruv]: How about -

This message MUST be the first PCEP message
issued by the PCEP speaker, willing to use TLS. Note that, this includes th=
e
open message




> --
> "Securing via TLS of an existing PCEP session is not
>    permitted, the session must be closed and re-established with TLS as
>    per the procedure described in this document"
>
>  Should the must be replaced by MUST?
>
>
>
=E2=80=8B[Dhruv] Ack=E2=80=8B



> --
> "If the PCEP speaker supports PCEPS but cannot establish a TLS
>    connection for some reason"
>
> I believe that in that case both speakers must support PCEPS in order for
> them to send the startTLS and start TLS negotiation. Its unclear when tho=
se
> errors can be sent, shouldn't they be sent after the TLS negotiations hav=
e
> taken place?
> This comment is repeated in the next sections/comments.
>

=E2=80=8B[Dhruv]: Yes, this is after startTLS messages have been exchanged,=
 and once
the PCEP speaker finds out that the TLS connection cannot be established.

We could reword this to -

After the exchange of startTLS messages, if the PCEP speaker cannot
establish a TLS connection
for some reason...


>
> Section 3.3.
>
> --
> "On receiving a StartTLS message from the PCEP
>    peer (i.e.  when the PCEP speaker has sent and received StartTLS
>    message) it is ready to start TLS negotiation and establishment and
>    move to steps described in Section 3.4."
>
> From section 3.2  a peer MAY also send Error-Type set to [TBA2 by IANA]
> (PCEP StartTLS failure) and Error-value 3 (not without TLS) or 4 (ok
> without TLS).
> At which point of the PCEP session are the PCErr sent? is it in step 3 of
>  section 3.4?
>
>
>
=E2=80=8B[Dhruv]: Yes. It is the error handling part of step 3 IMHO. =E2=80=
=8B



> --
> "Once the TCP connection has been successfully established and the
>    StartTLS message sent, the sender MUST start a timer called
>    StartTLSWait timer, after the expiration of which, if no StartTLS
>    message has been received, it sends a PCErr message and releases the
>    TCP connection with Error-Type set to [TBA2 by IANA] and Error-value
>    set to 5 (no StartTLS message received before the expiration of the
>    StartTLSWait timer)."
>
> the following text would be more clear in my opinion
>
> =E2=80=8B=E2=80=8B
> "Once the TCP connection has been successfully established and the
>    StartTLS message sent, the sender MUST start a timer called
>    StartTLSWait timer, after the expiration of which, if no StartTLS
>    message has been received, it MUST send a PCErr message and releases t=
he
>    TCP connection with Error-Type set to [TBA2 by IANA] and Error-value
>    set to 5 (no StartTLS message received before the expiration of the
>    StartTLSWait timer)."
>

=E2=80=8B[Dhruv]: Ack. =E2=80=8B



>
> Section 3.5
>
>
>
> --
> "PCEPS implementations SHOULD provide mechanisms for
>    associating peer identities with different levels of access and/or
>    authoritativeness, and they MUST provide a mechanism for establish a
>    default level for properly identified peers. "
>
> typo "
> =E2=80=8B=E2=80=8B
> for establish" -> "for
> =E2=80=8B=E2=80=8B
> establishing"
>
> "PCEPS implementations SHOULD provide mechanisms for
>    associating peer identities with different levels of access and/or
>    authoritativeness, and they MUST provide a mechanism for establishing =
a
>    default level for properly identified peers. "
>
>
=E2=80=8B[Dhruv]: Ack. =E2=80=8B



> --
>
> " Implementations
>    that want to support a wide variety of trust models should expose as
>    many details of the presented certificate to the administrator as
>    possible so that the trust model can be implemented by the
>    administrator. "
>
> should -> SHOULD or it could be rephrased if its not the intent.
>
>
=E2=80=8B=E2=80=8B[Dhruv]: Ack. =E2=80=8B
=E2=80=8B



> --
> "As a suggestion, at least the following parameters of
>    the X.509 certificate should be exposed:"
>
> it can be rephrased as
> "
> =E2=80=8B=E2=80=8B
> At least the following parameters of
>    the X.509 certificate SHOULD be exposed:"
>
> or
>
> "its
> =E2=80=8B=E2=80=8B
> RECOMMENDED that at least the following parameters of
>    the X.509 certificate are exposed:"
>
>
>
=E2=80=8B=E2=80=8B=E2=80=8B[Dhruv]: Ack. =E2=80=8B=E2=80=8B



> Section 3.6
> --
>
> Section 3.2
> =E2=80=8B=E2=80=8B
> defines error-values for TLS negotiation failures, should they be used in
> that section? i.e the peer SHOULD send a PCErr and MUST terminate the
> session?
>
>
>
=E2=80=8B[Dhruv]: Yes, updated the text to -

   In case the initial TLS negotiation or the peer identity check fails,
   according to the procedures listed in this document, the peer MUST
   send the PCErr message as per the Section 3.2 and then MUST terminate
   the session.



> Section 4.
>
> --
> I am not sure if the second and third paragraph are relevant for PCEPS
> session establishement. Could you indicate what is the relation between
> PCEPS and dns resolution?
>
>
=E2=80=8B[Dhruv=E2=80=8B]: If DNS is used to discover the PCE IP address, i=
t can also
specify if the PCE supports TLS via the NAPTR records, you can find an
example of this in
https://tools.ietf.org/html/draft-wu-pce-dns-pce-discovery-09#section-6.2.1

Thus this is similar to learning the PCEPS capability via IGP.



>
> Section 6.1
>
> --
>
> Following rfc5226, please  clarify the request for new allocation and
> indicate which registry need to be updated, for instance:
>
>  IANA is requested to allocate new message types within the "PCEP
>  Messages" sub-registry of the PCEP Numbers registry, as follows:
>
>                  Value     Meaning
>          Reference
>                    TBA1      The Start TLS Message (StartTLS)         Thi=
s
> document
>
> Section 6.2
>
> --
> same as section 6.1, a possible text can be:
>
> IANA is requested to allocate new Error Types and Error Values within
>    the " PCEP-ERROR Object Error Types and Values" sub-registry of the
>    PCEP Numbers registry, as follows:
>
>
>
>
=E2=80=8B[Dhruv]: Ack=E2=80=8B



> Section 8.2
>
> --
> should the YANG modules also be updated?
>
>
=E2=80=8B[Dhruv]: How about - =E2=80=8B

=E2=80=8B   An implementation SHOULD allow the operator to configure the PC=
EPS
   capability as well as various TLS related parameters, as well as view
   the current TLS status for a PCEP session.  To serve this purpose,
   the PCEP YANG module [I-D.ietf-pce-pcep-yang] can be extended to
   include TLS related configuration and state.=E2=80=8B



=E2=80=8BThanks for your comments! =E2=80=8BI have attached the diff file.

Working XML:
https://github.com/dhruvdhody-huawei/ietf/blob/master/draft-ietf-pce-pceps-=
12.xml

=E2=80=8BWe can update a new version after a confirmation from you! =E2=80=
=8B

=E2=80=8BRegards,
Dhruv=E2=80=8B



>
> Thanks,
> Cyril
>

--94eb2c0578c07d4460054bc2906c
Content-Type: text/html; charset=UTF-8
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<div dir=3D"ltr"><div class=3D"gmail_default" style=3D"font-family:&quot;tr=
ebuchet ms&quot;,sans-serif;color:rgb(12,52,61)">Hi Cyril,=C2=A0</div><div =
class=3D"gmail_default" style=3D"font-family:&quot;trebuchet ms&quot;,sans-=
serif;color:rgb(12,52,61)"><br></div><div class=3D"gmail_default" style=3D"=
font-family:&quot;trebuchet ms&quot;,sans-serif;color:rgb(12,52,61)">Thanks=
 for being our shepherd and providing review comments. Please see inline...=
</div><div class=3D"gmail_extra"><br><div class=3D"gmail_quote">On Mon, Mar=
 27, 2017 at 12:10 PM, Cyril Margaria <span dir=3D"ltr">&lt;<a href=3D"mail=
to:cyril.margaria@gmail.com" target=3D"_blank">cyril.margaria@gmail.com</a>=
&gt;</span> wrote:<br><blockquote class=3D"gmail_quote" style=3D"margin:0px=
 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><di=
v dir=3D"ltr"><div>Dear authors, PCE WG</div><div><br></div><div>I am the s=
hepherd for this document, Please find below my shepherd&#39;s review of th=
e aforementioned I-D.</div><div><br></div><div><br></div><div>* General</di=
v><div><br></div><div>The document does not need much work to to progress, =
they are mainly clarifications.</div><div><br></div><div>* Detailed comment=
s.</div><div><br></div><div>Section 3.2</div><div>--</div><div>&quot;Thus t=
he PCEP session is secured via TLS from the</div><div>=C2=A0 =C2=A0start be=
fore exchange of any other PCEP message including the Open</div><div>=C2=A0=
 =C2=A0message.&quot;</div><div><br></div><div>This sentence comes after th=
e reference to discovery procedures while it refers to when the startTLS me=
ssage is to be used.</div><div>This could be rephrased.</div><div></div></d=
iv></blockquote><div><br></div><div><div class=3D"gmail_default" style=3D"f=
ont-family:&quot;trebuchet ms&quot;,sans-serif;color:rgb(12,52,61)">=E2=80=
=8B[Dhruv]: How about -=C2=A0</div><div class=3D"gmail_default" style=3D"fo=
nt-family:&quot;trebuchet ms&quot;,sans-serif;color:rgb(12,52,61)"><br></di=
v><div class=3D"gmail_default" style=3D"font-family:&quot;trebuchet ms&quot=
;,sans-serif;color:rgb(12,52,61)"><div class=3D"gmail_default">This message=
 MUST be the first PCEP message</div><div class=3D"gmail_default">issued by=
 the PCEP speaker, willing to use TLS. Note that, this includes the</div><d=
iv class=3D"gmail_default">open message</div></div><br></div><div><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 di=
r=3D"ltr"><div>--</div><div>&quot;Securing via TLS of an existing PCEP sess=
ion is not</div><div>=C2=A0 =C2=A0permitted, the session must be closed and=
 re-established with TLS as</div><div>=C2=A0 =C2=A0per the procedure descri=
bed in this document&quot;</div><div><br></div><div>=C2=A0Should the must b=
e replaced by MUST?</div><div><br></div><div><br></div></div></blockquote><=
div><br></div><div><div class=3D"gmail_default" style=3D"font-family:&quot;=
trebuchet ms&quot;,sans-serif;color:rgb(12,52,61)">=E2=80=8B[Dhruv] Ack=E2=
=80=8B</div><br></div><div>=C2=A0</div><blockquote class=3D"gmail_quote" st=
yle=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padd=
ing-left:1ex"><div dir=3D"ltr"><div></div><div>--</div><div>&quot;If the PC=
EP speaker supports PCEPS but cannot establish a TLS</div><div>=C2=A0 =C2=
=A0connection for some reason&quot;</div><div><br></div><div>I believe that=
 in that case both speakers must support PCEPS in order for them to send th=
e startTLS and start TLS negotiation. Its unclear when those errors can be =
sent, shouldn&#39;t they be sent after the TLS negotiations have taken plac=
e?</div><div>This comment is repeated in the next sections/comments.</div><=
/div></blockquote><div><br></div><div><div class=3D"gmail_default" style=3D=
"font-family:&quot;trebuchet ms&quot;,sans-serif;color:rgb(12,52,61)">=E2=
=80=8B[Dhruv]: Yes, this is after startTLS messages have been exchanged, an=
d o<span style=3D"font-size:small">nce the PCEP speaker finds out that the =
TLS connection cannot be established.=C2=A0</span></div><div class=3D"gmail=
_default" style=3D"font-family:&quot;trebuchet ms&quot;,sans-serif;color:rg=
b(12,52,61)"><span style=3D"font-size:small"><br></span></div><div class=3D=
"gmail_default" style=3D"font-family:&quot;trebuchet ms&quot;,sans-serif;co=
lor:rgb(12,52,61)"><span style=3D"font-size:small">We could reword this to =
-=C2=A0</span></div><div class=3D"gmail_default" style=3D"font-family:&quot=
;trebuchet ms&quot;,sans-serif;color:rgb(12,52,61)"><span style=3D"font-siz=
e:small"><br></span></div><div class=3D"gmail_default" style=3D"font-family=
:&quot;trebuchet ms&quot;,sans-serif;color:rgb(12,52,61)"><span style=3D"fo=
nt-size:small"><div class=3D"gmail_default">After the exchange of startTLS =
messages, if the PCEP speaker cannot establish a TLS connection</div><div c=
lass=3D"gmail_default">for some reason...=C2=A0</div></span></div></div><di=
v>=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 dir=3D=
"ltr"><div><br></div><div>Section 3.3.</div><div><br></div><div>--</div><di=
v>&quot;On receiving a StartTLS message from the PCEP</div><div>=C2=A0 =C2=
=A0peer (i.e. =C2=A0when the PCEP speaker has sent and received StartTLS</d=
iv><div>=C2=A0 =C2=A0message) it is ready to start TLS negotiation and esta=
blishment and</div><div>=C2=A0 =C2=A0move to steps described in Section 3.4=
.&quot;</div><div><br></div><div>From section 3.2 =C2=A0a peer MAY also sen=
d Error-Type set to [TBA2 by IANA] (PCEP StartTLS failure) and Error-value =
3 (not without TLS) or 4 (ok without TLS).</div><div>At which point of the =
PCEP session are the PCErr sent? is it in step 3 of =C2=A0section 3.4?</div=
><div><br></div><div><br></div></div></blockquote><div><br></div><div><div =
class=3D"gmail_default" style=3D"font-family:&quot;trebuchet ms&quot;,sans-=
serif;color:rgb(12,52,61)">=E2=80=8B[Dhruv]: Yes. It is the error handling =
part of step 3 IMHO. =E2=80=8B</div><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"><div dir=3D"ltr"><div></div><div>--</=
div><div>&quot;Once the TCP connection has been successfully established an=
d the</div><div>=C2=A0 =C2=A0StartTLS message sent, the sender MUST start a=
 timer called</div><div>=C2=A0 =C2=A0StartTLSWait timer, after the expirati=
on of which, if no StartTLS</div><div>=C2=A0 =C2=A0message has been receive=
d, it sends a PCErr message and releases the</div><div>=C2=A0 =C2=A0TCP con=
nection with Error-Type set to [TBA2 by IANA] and Error-value</div><div>=C2=
=A0 =C2=A0set to 5 (no StartTLS message received before the expiration of t=
he</div><div>=C2=A0 =C2=A0StartTLSWait timer).&quot;</div><div><br></div><d=
iv>the following text would be more clear in my opinion</div><div><br></div=
><div><div class=3D"gmail_default" style=3D"font-family:&quot;trebuchet ms&=
quot;,sans-serif;color:rgb(12,52,61);display:inline">=E2=80=8B=E2=80=8B</di=
v>&quot;Once the TCP connection has been successfully established and the</=
div><div>=C2=A0 =C2=A0StartTLS message sent, the sender MUST start a timer =
called</div><div>=C2=A0 =C2=A0StartTLSWait timer, after the expiration of w=
hich, if no StartTLS</div><div>=C2=A0 =C2=A0message has been received, it M=
UST send a PCErr message and releases the</div><div>=C2=A0 =C2=A0TCP connec=
tion with Error-Type set to [TBA2 by IANA] and Error-value</div><div>=C2=A0=
 =C2=A0set to 5 (no StartTLS message received before the expiration of the<=
/div><div>=C2=A0 =C2=A0StartTLSWait timer).&quot;</div></div></blockquote><=
div><br></div><div><div class=3D"gmail_default" style=3D"font-family:&quot;=
trebuchet ms&quot;,sans-serif;color:rgb(12,52,61)">=E2=80=8B[Dhruv]: Ack. =
=E2=80=8B</div><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);p=
adding-left:1ex"><div dir=3D"ltr"><div><br></div><div>Section 3.5</div><div=
><br></div><div><br></div><div><br></div><div>--</div><div>&quot;PCEPS impl=
ementations SHOULD provide mechanisms for</div><div>=C2=A0 =C2=A0associatin=
g peer identities with different levels of access and/or</div><div>=C2=A0 =
=C2=A0authoritativeness, and they MUST provide a mechanism for establish a<=
/div><div>=C2=A0 =C2=A0default level for properly identified peers. &quot;<=
/div><div><br></div><div>typo &quot;<div class=3D"gmail_default" style=3D"f=
ont-family:&quot;trebuchet ms&quot;,sans-serif;color:rgb(12,52,61);display:=
inline">=E2=80=8B=E2=80=8B</div>for establish&quot; -&gt; &quot;for <div cl=
ass=3D"gmail_default" style=3D"font-family:&quot;trebuchet ms&quot;,sans-se=
rif;color:rgb(12,52,61);display:inline">=E2=80=8B=E2=80=8B</div>establishin=
g&quot;</div><div><br></div><div>&quot;PCEPS implementations SHOULD provide=
 mechanisms for</div><div>=C2=A0 =C2=A0associating peer identities with dif=
ferent levels of access and/or</div><div>=C2=A0 =C2=A0authoritativeness, an=
d they MUST provide a mechanism for establishing a</div><div>=C2=A0 =C2=A0d=
efault level for properly identified peers. &quot;</div><div><br></div></di=
v></blockquote><div><br></div><div><div class=3D"gmail_default" style=3D"fo=
nt-family:&quot;trebuchet ms&quot;,sans-serif;color:rgb(12,52,61)">=E2=80=
=8B[Dhruv]: Ack. =E2=80=8B</div><br></div><div>=C2=A0</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"ltr"><div></div><div>--</div>=
<div><br></div><div>&quot; Implementations</div><div>=C2=A0 =C2=A0that want=
 to support a wide variety of trust models should expose as</div><div>=C2=
=A0 =C2=A0many details of the presented certificate to the administrator as=
</div><div>=C2=A0 =C2=A0possible so that the trust model can be implemented=
 by the</div><div>=C2=A0 =C2=A0administrator. &quot;</div><div><br></div><d=
iv>should -&gt; SHOULD or it could be rephrased if its not the intent.</div=
><div><br></div></div></blockquote><div><br></div><div><div class=3D"gmail_=
default" style=3D"font-family:&quot;trebuchet ms&quot;,sans-serif;color:rgb=
(12,52,61)">=E2=80=8B<span style=3D"font-size:small">=E2=80=8B[Dhruv]: Ack.=
 =E2=80=8B</span></div><div class=3D"gmail_default" style=3D"font-family:&q=
uot;trebuchet ms&quot;,sans-serif;color:rgb(12,52,61)">=E2=80=8B</div><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"><di=
v dir=3D"ltr"><div></div><div>--</div><div>&quot;As a suggestion, at least =
the following parameters of</div><div>=C2=A0 =C2=A0the X.509 certificate sh=
ould be exposed:&quot;</div><div><br></div><div>it can be rephrased as=C2=
=A0</div><div>&quot;<div class=3D"gmail_default" style=3D"font-family:&quot=
;trebuchet ms&quot;,sans-serif;color:rgb(12,52,61);display:inline">=E2=80=
=8B=E2=80=8B</div>At least the following parameters of</div><div>=C2=A0 =C2=
=A0the X.509 certificate SHOULD be exposed:&quot;</div><div><br></div><div>=
or</div><div><br></div><div>&quot;its <div class=3D"gmail_default" style=3D=
"font-family:&quot;trebuchet ms&quot;,sans-serif;color:rgb(12,52,61);displa=
y:inline">=E2=80=8B=E2=80=8B</div>RECOMMENDED that at least the following p=
arameters of</div><div>=C2=A0 =C2=A0the X.509 certificate are exposed:&quot=
;</div><div><br></div><div><br></div></div></blockquote><div><br></div><div=
><div class=3D"gmail_default" style=3D"font-family:&quot;trebuchet ms&quot;=
,sans-serif;color:rgb(12,52,61)">=E2=80=8B<span style=3D"font-size:small">=
=E2=80=8B</span><span style=3D"font-size:small">=E2=80=8B[Dhruv]: Ack. =E2=
=80=8B</span><span style=3D"font-size:small">=E2=80=8B</span></div><br></di=
v><div>=C2=A0</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 d=
ir=3D"ltr"><div></div><div>Section 3.6</div><div>--</div><div><br></div><di=
v>Section 3.2 <div class=3D"gmail_default" style=3D"font-family:&quot;trebu=
chet ms&quot;,sans-serif;color:rgb(12,52,61);display:inline">=E2=80=8B=E2=
=80=8B</div>defines error-values for TLS negotiation failures, should they =
be used in that section? i.e the peer SHOULD send a PCErr and MUST terminat=
e the session?</div><div><br></div><div><br></div></div></blockquote><div><=
br></div><div><div class=3D"gmail_default" style=3D"font-family:&quot;trebu=
chet ms&quot;,sans-serif;color:rgb(12,52,61)">=E2=80=8B[Dhruv]: Yes, update=
d the text to -=C2=A0</div><div class=3D"gmail_default" style=3D"font-famil=
y:&quot;trebuchet ms&quot;,sans-serif;color:rgb(12,52,61)"><br></div><div c=
lass=3D"gmail_default" style=3D"font-family:&quot;trebuchet ms&quot;,sans-s=
erif;color:rgb(12,52,61)"><div class=3D"gmail_default">=C2=A0 =C2=A0In case=
 the initial TLS negotiation or the peer identity check fails,</div><div cl=
ass=3D"gmail_default">=C2=A0 =C2=A0according to the procedures listed in th=
is document, the peer MUST</div><div class=3D"gmail_default">=C2=A0 =C2=A0s=
end the PCErr message as per the Section 3.2 and then MUST terminate</div><=
div class=3D"gmail_default">=C2=A0 =C2=A0the session.</div></div><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 dir=
=3D"ltr"><div></div><div>Section 4.</div><div><br></div><div>--</div><div>I=
 am not sure if the second and third paragraph are relevant for PCEPS sessi=
on establishement. Could you indicate what is the relation between PCEPS an=
d dns resolution?</div><div><br></div></div></blockquote><div><br></div><di=
v><div class=3D"gmail_default"><font color=3D"#0c343d" face=3D"trebuchet ms=
, sans-serif">=E2=80=8B[Dhruv=E2=80=8B]: If DNS is used to discover the PCE=
 IP address, it can also specify if the PCE supports TLS via the NAPTR reco=
rds, you can find an example of this in=C2=A0<a href=3D"https://tools.ietf.=
org/html/draft-wu-pce-dns-pce-discovery-09#section-6.2.1">https://tools.iet=
f.org/html/draft-wu-pce-dns-pce-discovery-09#section-6.2.1</a></font></div>=
<div class=3D"gmail_default"><font color=3D"#0c343d" face=3D"trebuchet ms, =
sans-serif"><br></font></div><div class=3D"gmail_default"><font color=3D"#0=
c343d" face=3D"trebuchet ms, sans-serif">Thus this is similar to learning t=
he PCEPS capability via IGP.=C2=A0</font></div><br></div><div>=C2=A0</div><=
blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-l=
eft:1px solid rgb(204,204,204);padding-left:1ex"><div dir=3D"ltr"><div></di=
v><div><br></div><div>Section 6.1</div><div><br></div><div>--</div><div><br=
></div><div>Following rfc5226, please =C2=A0clarify the request for new all=
ocation and indicate which registry need to be updated, for instance:</div>=
<div><br></div><div>=C2=A0IANA is requested to allocate new message types w=
ithin the &quot;PCEP =C2=A0Messages&quot; sub-registry of the PCEP Numbers =
registry, as follows:</div><div><br></div><div>=C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0Value =C2=A0 =C2=A0 Meaning =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=A0Reference</div><div>=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0 =C2=A0 =C2=A0TBA1 =C2=A0 =C2=A0 =C2=A0The Start TLS Message (=
StartTLS) =C2=A0 =C2=A0 =C2=A0 =C2=A0 This document</div><div><br></div><di=
v>Section 6.2</div><div><br></div><div>--</div><div>same as section 6.1, a =
possible text can be:</div><div><br></div><div>IANA is requested to allocat=
e new Error Types and Error Values within</div><div>=C2=A0 =C2=A0the &quot;=
 PCEP-ERROR Object Error Types and Values&quot; sub-registry of the</div><d=
iv>=C2=A0 =C2=A0PCEP Numbers registry, as follows:</div><div><br></div><div=
><br></div><div><br></div></div></blockquote><div><br></div><div><div class=
=3D"gmail_default" style=3D"font-family:&quot;trebuchet ms&quot;,sans-serif=
;color:rgb(12,52,61)">=E2=80=8B[Dhruv]: Ack=E2=80=8B</div><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 dir=3D"l=
tr"><div></div><div>Section 8.2</div><div><br></div><div>--</div><div>shoul=
d the YANG modules also be updated?</div><div><br></div></div></blockquote>=
<div><br></div><div><div class=3D"gmail_default" style=3D"font-family:&quot=
;trebuchet ms&quot;,sans-serif;color:rgb(12,52,61)">=E2=80=8B[Dhruv]: How a=
bout - =E2=80=8B</div><br></div><div><div class=3D"gmail_default" style=3D"=
font-family:&quot;trebuchet ms&quot;,sans-serif;color:rgb(12,52,61)">=E2=80=
=8B<span style=3D"font-size:small">=C2=A0 =C2=A0An implementation SHOULD al=
low the operator to configure the PCEPS</span></div><div class=3D"gmail_def=
ault" style=3D"font-family:&quot;trebuchet ms&quot;,sans-serif;color:rgb(12=
,52,61)">=C2=A0 =C2=A0capability as well as various TLS related parameters,=
 as well as view</div><div class=3D"gmail_default" style=3D"font-family:&qu=
ot;trebuchet ms&quot;,sans-serif;color:rgb(12,52,61)">=C2=A0 =C2=A0the curr=
ent TLS status for a PCEP session.=C2=A0 To serve this purpose,</div><div c=
lass=3D"gmail_default" style=3D"font-family:&quot;trebuchet ms&quot;,sans-s=
erif;color:rgb(12,52,61)">=C2=A0 =C2=A0the PCEP YANG module [I-D.ietf-pce-p=
cep-yang] can be extended to</div><div class=3D"gmail_default" style=3D"fon=
t-family:&quot;trebuchet ms&quot;,sans-serif;color:rgb(12,52,61)"><span sty=
le=3D"font-size:small">=C2=A0 =C2=A0include TLS related configuration and s=
tate.</span>=E2=80=8B</div><br></div><div><br></div><div><br></div><div><di=
v class=3D"gmail_default" style=3D"font-family:&quot;trebuchet ms&quot;,san=
s-serif;color:rgb(12,52,61)">=E2=80=8BThanks for your comments! =E2=80=8BI =
have attached the diff file.=C2=A0</div><div class=3D"gmail_default" style=
=3D"font-family:&quot;trebuchet ms&quot;,sans-serif;color:rgb(12,52,61)"><b=
r></div><div class=3D"gmail_default" style=3D"font-family:&quot;trebuchet m=
s&quot;,sans-serif;color:rgb(12,52,61)">Working XML:=C2=A0<a href=3D"https:=
//github.com/dhruvdhody-huawei/ietf/blob/master/draft-ietf-pce-pceps-12.xml=
">https://github.com/dhruvdhody-huawei/ietf/blob/master/draft-ietf-pce-pcep=
s-12.xml</a></div><br></div><div><div class=3D"gmail_default" style=3D"font=
-family:&quot;trebuchet ms&quot;,sans-serif;color:rgb(12,52,61)">=E2=80=8BW=
e can update a new version after a confirmation from you! =E2=80=8B</div></=
div><div><br></div><div><div class=3D"gmail_default" style=3D"font-family:&=
quot;trebuchet ms&quot;,sans-serif;color:rgb(12,52,61)">=E2=80=8BRegards,</=
div><div class=3D"gmail_default" style=3D"font-family:&quot;trebuchet ms&qu=
ot;,sans-serif;color:rgb(12,52,61)">Dhruv=E2=80=8B</div><br></div><div>=C2=
=A0</div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8e=
x;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir=3D"ltr"=
><div></div><div><br></div><div>Thanks,=C2=A0</div><span class=3D"gmail-HOE=
nZb"><font color=3D"#888888"><div>Cyril</div></font></span></div>
</blockquote></div><br></div></div>

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From: Daniele Ceccarelli <daniele.ceccarelli@ericsson.com>
To: Daniele Ceccarelli <daniele.ceccarelli@ericsson.com>, "pce@ietf.org" <pce@ietf.org>, TEAS WG <teas@ietf.org>, "routing-discussion@ietf.org" <routing-discussion@ietf.org>, "mpls@ietf.org" <mpls@ietf.org>, "ccamp@ietf.org" <ccamp@ietf.org>
CC: Ignas Bagdonas <ibagdona@gmail.com>, "draft-izh-ccamp-flexe-fwk@ietf.org" <draft-izh-ccamp-flexe-fwk@ietf.org>, "N.Leymann@telekom.de" <N.Leymann@telekom.de>
Thread-Topic: [CCAMP] FlexE side meeting
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Subject: Re: [Pce] [CCAMP] FlexE side meeting
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...and the agenda



>> The agenda will be:

>>

>> 1. FlexE background and origins: Haomian Zheng

>> 2. FlexE Technology Deep Dive:   Iftekhar Hussain

>> 3. FlexE in the IETF:            Mach Chen

>> 4. Open Mic


From: CCAMP [mailto:ccamp-bounces@ietf.org] On Behalf Of Daniele Ceccarelli
Sent: marted=EC 28 marzo 2017 12:00
To: pce@ietf.org; TEAS WG <teas@ietf.org>; routing-discussion@ietf.org; mpl=
s@ietf.org; ccamp@ietf.org
Cc: Ignas Bagdonas <ibagdona@gmail.com>; draft-izh-ccamp-flexe-fwk@ietf.org=
; N.Leymann@telekom.de
Subject: [CCAMP] FlexE side meeting

Hi everyone,

a reminder for the FlexE side meeting and the link to Meetecho:

When: Tuesday 18:45-20:15
Room: Zurich B
Remote participation - Meetecho: http://www.meetecho.com/ietf98/CCAMP-FlexE

BR
Daniele, Nic, Loa

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<body lang=3D"IT" link=3D"#0563C1" vlink=3D"#954F72">
<div class=3D"WordSection1">
<p class=3D"MsoPlainText"><span lang=3D"EN-US">&#8230;and the agenda<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">&gt;&gt; The agenda will be:=
<o:p></o:p></span></p>
<p class=3D"MsoPlainText"><span lang=3D"EN-US">&gt;&gt;<o:p>&nbsp;</o:p></s=
pan></p>
<p class=3D"MsoPlainText"><span lang=3D"EN-US">&gt;&gt; 1. FlexE background=
 and origins: Haomian Zheng<o:p></o:p></span></p>
<p class=3D"MsoPlainText"><span lang=3D"EN-US">&gt;&gt; 2. FlexE Technology=
 Deep Dive:&nbsp;&nbsp; Iftekhar Hussain<o:p></o:p></span></p>
<p class=3D"MsoPlainText"><span lang=3D"EN-US">&gt;&gt; 3. FlexE in the IET=
F:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Mach C=
hen<o:p></o:p></span></p>
<p class=3D"MsoPlainText">&gt;&gt; 4. Open Mic<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>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><b><span lang=3D"EN-US"=
 style=3D"mso-fareast-language:IT">From:</span></b><span lang=3D"EN-US" sty=
le=3D"mso-fareast-language:IT"> CCAMP [mailto:ccamp-bounces@ietf.org]
<b>On Behalf Of </b>Daniele Ceccarelli<br>
<b>Sent:</b> marted=EC 28 marzo 2017 12:00<br>
<b>To:</b> pce@ietf.org; TEAS WG &lt;teas@ietf.org&gt;; routing-discussion@=
ietf.org; mpls@ietf.org; ccamp@ietf.org<br>
<b>Cc:</b> Ignas Bagdonas &lt;ibagdona@gmail.com&gt;; draft-izh-ccamp-flexe=
-fwk@ietf.org; N.Leymann@telekom.de<br>
<b>Subject:</b> [CCAMP] FlexE side meeting<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt">Hi everyone,<o:p></o:p>=
</p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US">a =
reminder for the FlexE side meeting and the link to Meetecho:<o:p></o:p></s=
pan></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US"><o=
:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US">Wh=
en: Tuesday 18:45-20:15<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US">Ro=
om: Zurich B<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US">Re=
mote participation - Meetecho:
<a href=3D"http://www.meetecho.com/ietf98/CCAMP-FlexE">http://www.meetecho.=
com/ietf98/CCAMP-FlexE</a>
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US"><o=
:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><span lang=3D"EN-US">BR=
<br>
Daniele, Nic, Loa<o:p></o:p></span></p>
</div>
</body>
</html>

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From: Daniele Ceccarelli <daniele.ceccarelli@ericsson.com>
To: "pce@ietf.org" <pce@ietf.org>, TEAS WG <teas@ietf.org>, "routing-discussion@ietf.org" <routing-discussion@ietf.org>, "mpls@ietf.org" <mpls@ietf.org>, "ccamp@ietf.org" <ccamp@ietf.org>
CC: Loa Andersson <loa@pi.nu>, "N.Leymann@telekom.de" <N.Leymann@telekom.de>,  "draft-izh-ccamp-flexe-fwk@ietf.org" <draft-izh-ccamp-flexe-fwk@ietf.org>,  Deborah A Brungard <db3546@att.com>, Ignas Bagdonas <ibagdona@gmail.com>
Thread-Topic: FlexE side meeting 
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Hi everyone,

a reminder for the FlexE side meeting and the link to Meetecho:

When: Tuesday 18:45-20:15
Room: Zurich B
Remote participation - Meetecho: http://www.meetecho.com/ietf98/CCAMP-FlexE

BR
Daniele, Nic, Loa

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<p class=3D"MsoNormal">Hi everyone,<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">a reminder for the FlexE side m=
eeting and the link to Meetecho:<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">When: Tuesday 18:45-20:15<o:p><=
/o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Room: Zurich B<o:p></o:p></span=
></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Remote participation - Meetecho=
: <a href=3D"http://www.meetecho.com/ietf98/CCAMP-FlexE">
http://www.meetecho.com/ietf98/CCAMP-FlexE</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">BR<br>
Daniele, Nic, Loa<o:p></o:p></span></p>
</div>
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Reply-To: <adrian@olddog.co.uk>
From: "Adrian Farrel" <adrian@olddog.co.uk>
To: "'Jonathan Hardwick'" <Jonathan.Hardwick@metaswitch.com>, <pce@ietf.org>
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In-Reply-To: <BY2PR0201MB191090B5292E1309C1FFAD5C84200@BY2PR0201MB1910.namprd02.prod.outlook.com>
Date: Tue, 28 Mar 2017 23:18:10 +0100
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Archived-At: <https://mailarchive.ietf.org/arch/msg/pce/XStf6rypntLkYnuShq8XrV_qtRg>
Subject: Re: [Pce] Working group last call for draft-ietf-pce-rfc6006bis-00
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Hi Jon,
 
I see that WG last call completed in silence. Possibly a function of
people preparing for IETF-98. Maybe just means that everyone thinks 
it is obvious to update the RFC and move on.
 
Anyway, since I'm sitting in a WG meeting where the discussion is a
little too esoteric even for me, here is a quick (but late) review.
 
Cheers,
Adrian
 
===
 
Unfortunate effect of a bis is that the author count has gone OTT.
 
---
 
A bit odd to wipe the Acknowledgements of the people who contributed to
RFC 6006.
 
---
 
Why has Zafar disappeared from the Authors' Addresses (but remains on
the front page)?
 
---
 
Good job picking up the five errata that are on file.
I was a little surprised to see some additional changes that have not
been flagged to the WG nor noted anywhere in the document (e.g., in a
changes section such as Appendix A).
 
---
 
I see you added some text to 3.4. I see that this text is to explain
the RBNF that follows, so that is probably OK.
 
---
 
I must have missed the discussion of Errata Report 4867. Sorry about
that.
 
There are three issues, I think
1. Trying to pack all RBNF into the spec as though the RBNF was the
   normative definition of the message format. It isn't and was never
   intended to be.
   Doing this gets infinitely complicated as more objects are added.
   Doesn't mean what you have done is wrong, wrt svec-list, just not
   necessary.
2. Removal of <BANDWIDTH> from <RRO-List> is wrong, I think.
   As I see it:
     You can apply <BANDWIDTH> to the whole <RRO-List> by placing it
     after the <RRO-List>.
     If you want one <RRO> in an <RRO-List> to have a different
     <BANDWIDTH> you can include a separate <BANDWIDTH> after the
     <RRO>.
   I think you have *changed* the specification so that the way this
   function is achieved is to pull the <RRO> that has a different
   <BANDWIDTH> out into a different <RRO-List>.
   That's functional and can be changed if that is what people want
   and have discussed, but doing it with an Errata is a mistake because
   it was not an error in the document.
3. You also see to think that <BANDWIDTH> cannot be applied to the
   <END-POINTS> unless an <RRO-LIST> is present. I think that is
   wrong, too.  If it makes sense to have <END-POINTS> without an
   an <RRO-List> why would you not allow each instance of <END-POINTS>
   to have its own <BANDWIDTH>? This also seems to be a change of
   substance rather than an error in the document. Again, the WG is
   free to make this change, but surely not without discussion.
 
---
 
I see you have added some text to 3.5. This also seems to be just
explanation and is probably OK.
 
---
 
The fix in 3.12 looks good, but was not flagged to the WG.
 
From: Pce [mailto:pce-bounces@ietf.org] On Behalf Of Jonathan Hardwick
Sent: 10 March 2017 13:55
To: pce@ietf.org
Subject: [Pce] Working group last call for draft-ietf-pce-rfc6006bis-00
 
Dear PCE working group,
 
This email starts a working group last call for draft-ietf-pce-rfc6006bis-00.
https://datatracker.ietf.org/doc/draft-ietf-pce-rfc6006bis/
 
Please read the document and reply to the PCE mailing list whether you believe
this document is ready to be published, or not (including any comments on why
not).  The last call will end on Monday 20 March.
 
Best regards
Jon, JP and Julien
 
 

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</o:shapelayout></xml><![endif]--></head><body lang=3DEN-GB =
link=3D"#0563C1" vlink=3D"#954F72" style=3D'tab-interval:36.0pt'><div =
class=3DWordSection1><p class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'>Hi =
Jon,<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'>I see that WG last =
call completed in silence. Possibly a function =
of<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'>people preparing for =
IETF-98. Maybe just means that everyone thinks <o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'>it is obvious to =
update the RFC and move on.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'>Anyway, since I'm =
sitting in a WG meeting where the discussion is =
a<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'>little too esoteric =
even for me, here is a quick (but late) review.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'>Cheers,<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'>Adrian<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'>=3D=3D=3D<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'>Unfortunate effect of =
a bis is that the author count has gone OTT.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'>---<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'>A bit odd to wipe the =
Acknowledgements of the people who contributed =
to<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'>RFC =
6006.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'>---<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'>Why has Zafar =
disappeared from the Authors' Addresses (but remains =
on<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'>the front =
page)?<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'>---<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'>Good job picking up =
the five errata that are on file.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'>I was a little =
surprised to see some additional changes that have =
not<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'>been flagged to the WG =
nor noted anywhere in the document (e.g., in a<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'>changes section such =
as Appendix A).<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'>---<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'>I see you added some =
text to 3.4. I see that this text is to explain<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'>the RBNF that follows, =
so that is probably OK.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'>---<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'>I must have missed the =
discussion of Errata Report 4867. Sorry about<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'>that.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'>There are three =
issues, I think<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'>1. Trying to pack all =
RBNF into the spec as though the RBNF was the<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'><span =
style=3D'mso-spacerun:yes'>&nbsp;&nbsp; </span>normative definition of =
the message format. It isn't and was never<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'><span =
style=3D'mso-spacerun:yes'>&nbsp;&nbsp; </span>intended to =
be.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'><span =
style=3D'mso-spacerun:yes'>&nbsp;&nbsp; </span>Doing this gets =
infinitely complicated as more objects are =
added.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'><span =
style=3D'mso-spacerun:yes'>&nbsp;&nbsp; </span>Doesn't mean what you =
have done is wrong, wrt svec-list, just not<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'><span =
style=3D'mso-spacerun:yes'>&nbsp;&nbsp; =
</span>necessary.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'>2. Removal of =
&lt;BANDWIDTH&gt; from &lt;RRO-List&gt; is wrong, I =
think.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'><span =
style=3D'mso-spacerun:yes'>&nbsp;&nbsp; </span>As I see =
it:<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'><span =
style=3D'mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp; </span>You can apply =
&lt;BANDWIDTH&gt; to the whole &lt;RRO-List&gt; by placing =
it<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'><span =
style=3D'mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp; </span>after the =
&lt;RRO-List&gt;.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'><span =
style=3D'mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp; </span>If you want =
one &lt;RRO&gt; in an &lt;RRO-List&gt; to have a =
different<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'><span =
style=3D'mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp; =
</span>&lt;BANDWIDTH&gt; you can include a separate &lt;BANDWIDTH&gt; =
after the<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'><span =
style=3D'mso-spacerun:yes'>&nbsp;&nbsp;&nbsp;&nbsp; =
</span>&lt;RRO&gt;.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'><span =
style=3D'mso-spacerun:yes'>&nbsp;&nbsp; </span>I think you have =
*changed* the specification so that the way this<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'><span =
style=3D'mso-spacerun:yes'>&nbsp;&nbsp; </span>function is achieved is =
to pull the &lt;RRO&gt; that has a different<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'><span =
style=3D'mso-spacerun:yes'>&nbsp;&nbsp; </span>&lt;BANDWIDTH&gt; out =
into a different &lt;RRO-List&gt;.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'><span =
style=3D'mso-spacerun:yes'>&nbsp;&nbsp; </span>That's functional and can =
be changed if that is what people want<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'><span =
style=3D'mso-spacerun:yes'>&nbsp;&nbsp; </span>and have discussed, but =
doing it with an Errata is a mistake because<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'><span =
style=3D'mso-spacerun:yes'>&nbsp;&nbsp; </span>it was not an error in =
the document.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'>3. You also see to =
think that &lt;BANDWIDTH&gt; cannot be applied to =
the<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'><span =
style=3D'mso-spacerun:yes'>&nbsp;&nbsp; </span>&lt;END-POINTS&gt; unless =
an &lt;RRO-LIST&gt; is present. I think that is<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'><span =
style=3D'mso-spacerun:yes'>&nbsp;&nbsp; </span>wrong, too.<span =
style=3D'mso-spacerun:yes'>&nbsp; </span>If it makes sense to have =
&lt;END-POINTS&gt; without an<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'><span =
style=3D'mso-spacerun:yes'>&nbsp;&nbsp; </span>an &lt;RRO-List&gt; why =
would you not allow each instance of =
&lt;END-POINTS&gt;<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'><span =
style=3D'mso-spacerun:yes'>&nbsp;&nbsp; </span>to have its own =
&lt;BANDWIDTH&gt;? This also seems to be a change =
of<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'><span =
style=3D'mso-spacerun:yes'>&nbsp;&nbsp; </span>substance rather than an =
error in the document. Again, the WG is<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'><span =
style=3D'mso-spacerun:yes'>&nbsp;&nbsp; </span>free to make this change, =
but surely not without discussion.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'>---<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'>I see you have added =
some text to 3.5. This also seems to be just<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'>explanation and is =
probably OK.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'>---<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'>The fix in 3.12 looks =
good, but was not flagged to the WG.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";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 #B5C4DF =
1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=3DMsoNormal><b><span =
lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-fareast-f=
ont-family:"Times New =
Roman";mso-ansi-language:EN-US;mso-fareast-language:EN-GB'>From:</span></=
b><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-fareast-f=
ont-family:"Times New =
Roman";mso-ansi-language:EN-US;mso-fareast-language:EN-GB'> Pce =
[mailto:pce-bounces@ietf.org] <b>On Behalf Of </b>Jonathan =
Hardwick<br><b>Sent:</b> 10 March 2017 13:55<br><b>To:</b> =
pce@ietf.org<br><b>Subject:</b> [Pce] Working group last call for =
draft-ietf-pce-rfc6006bis-00<o:p></o:p></span></p></div></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>Dear PCE =
working group,<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>This email =
starts a working group last call for =
draft-ietf-pce-rfc6006bis-00.<o:p></o:p></p><p class=3DMsoPlainText><a =
href=3D"https://datatracker.ietf.org/doc/draft-ietf-pce-rfc6006bis/">http=
s://datatracker.ietf.org/doc/draft-ietf-pce-rfc6006bis/</a><o:p></o:p></p=
><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>Please =
read the document and reply to the PCE mailing list whether you believe =
this document is ready to be published, or not (including any comments =
on why not).&nbsp; The last call will end on <b>Monday 20 =
March</b>.<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>Best regards<o:p></o:p></p><p class=3DMsoNormal>Jon, =
JP and Julien<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div></div></body></html>
------=_NextPart_000_02BF_01D2A819.9282A550--



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From: Jonathan Hardwick <Jonathan.Hardwick@metaswitch.com>
To: "adrian@olddog.co.uk" <adrian@olddog.co.uk>, "pce@ietf.org" <pce@ietf.org>, "draft-ietf-pce-rfc6006bis@ietf.org" <draft-ietf-pce-rfc6006bis@ietf.org>
Thread-Topic: [Pce] Working group last call for draft-ietf-pce-rfc6006bis-00
Thread-Index: AdKZpXXhPvTfGSRbSIuvJDIQTvOWNAOa7jkAAADsd/A=
Date: Tue, 28 Mar 2017 22:59:34 +0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/pce/XrBPQbEevfMgTTLtqoNl_24Lzmo>
Subject: Re: [Pce] Working group last call for draft-ietf-pce-rfc6006bis-00
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Hi Adrian,

Many thanks for your comments.  I will let the document authors reply to yo=
ur points, but I just wanted to clarify the process that we've followed.

The draft, and a summary of the changes it introduced, was advertised to th=
e working group with an email to the list on 3 Nov last year.  The authors =
followed this up with a presentation at IETF 97, where they asked for guida=
nce on how to proceed with the issues they were raising.  The options we co=
nsidered were to either raise a new erratum or publish this bis-draft as a =
new RFC.  After discussion we decided to do both, which is why the proposed=
 changes are now in the errata system.  I do understand your points and I t=
end to agree on reflection that some of the changes in erratum 4867 are not=
 really suitable for an Errata Report.  However I must stress that the erra=
tum was raised _after_ the changes were announced and discussed, and there =
did seem to be consensus behind those changes (or at least, no dissention).

Best regards
Jon


From: Adrian Farrel [mailto:adrian@olddog.co.uk]
Sent: 28 March 2017 17:18
To: Jonathan Hardwick <Jonathan.Hardwick@metaswitch.com>; pce@ietf.org
Subject: RE: [Pce] Working group last call for draft-ietf-pce-rfc6006bis-00

Hi Jon,

I see that WG last call completed in silence. Possibly a function of
people preparing for IETF-98. Maybe just means that everyone thinks
it is obvious to update the RFC and move on.

Anyway, since I'm sitting in a WG meeting where the discussion is a
little too esoteric even for me, here is a quick (but late) review.

Cheers,
Adrian

=3D=3D=3D

Unfortunate effect of a bis is that the author count has gone OTT.

---

A bit odd to wipe the Acknowledgements of the people who contributed to
RFC 6006.

---

Why has Zafar disappeared from the Authors' Addresses (but remains on
the front page)?

---

Good job picking up the five errata that are on file.
I was a little surprised to see some additional changes that have not
been flagged to the WG nor noted anywhere in the document (e.g., in a
changes section such as Appendix A).

---

I see you added some text to 3.4. I see that this text is to explain
the RBNF that follows, so that is probably OK.

---

I must have missed the discussion of Errata Report 4867. Sorry about
that.

There are three issues, I think
1. Trying to pack all RBNF into the spec as though the RBNF was the
   normative definition of the message format. It isn't and was never
   intended to be.
   Doing this gets infinitely complicated as more objects are added.
   Doesn't mean what you have done is wrong, wrt svec-list, just not
   necessary.
2. Removal of <BANDWIDTH> from <RRO-List> is wrong, I think.
   As I see it:
     You can apply <BANDWIDTH> to the whole <RRO-List> by placing it
     after the <RRO-List>.
     If you want one <RRO> in an <RRO-List> to have a different
     <BANDWIDTH> you can include a separate <BANDWIDTH> after the
     <RRO>.
   I think you have *changed* the specification so that the way this
   function is achieved is to pull the <RRO> that has a different
   <BANDWIDTH> out into a different <RRO-List>.
   That's functional and can be changed if that is what people want
   and have discussed, but doing it with an Errata is a mistake because
   it was not an error in the document.
3. You also see to think that <BANDWIDTH> cannot be applied to the
   <END-POINTS> unless an <RRO-LIST> is present. I think that is
   wrong, too.  If it makes sense to have <END-POINTS> without an
   an <RRO-List> why would you not allow each instance of <END-POINTS>
   to have its own <BANDWIDTH>? This also seems to be a change of
   substance rather than an error in the document. Again, the WG is
   free to make this change, but surely not without discussion.

---

I see you have added some text to 3.5. This also seems to be just
explanation and is probably OK.

---

The fix in 3.12 looks good, but was not flagged to the WG.

From: Pce [mailto:pce-bounces@ietf.org] On Behalf Of Jonathan Hardwick
Sent: 10 March 2017 13:55
To: pce@ietf.org<mailto:pce@ietf.org>
Subject: [Pce] Working group last call for draft-ietf-pce-rfc6006bis-00

Dear PCE working group,

This email starts a working group last call for draft-ietf-pce-rfc6006bis-0=
0.

https://datatracker.ietf.org/doc/draft-ietf-pce-rfc6006bis/

Please read the document and reply to the PCE mailing list whether you beli=
eve this document is ready to be published, or not (including any comments =
on why not).  The last call will end on Monday 20 March.

Best regards
Jon, JP and Julien



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<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">Hi Adrian,<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">Many thanks for your c=
omments.&nbsp; I will let the document authors reply to your points, but I =
just wanted to clarify the process that we&#8217;ve followed.<o:p></o:p></s=
pan></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">The draft, and a summa=
ry of the changes it introduced, was advertised to the working group with a=
n email to the list on 3 Nov last year.&nbsp; The authors followed this up =
with a presentation at IETF 97, where they
 asked for guidance on how to proceed with the issues they were raising.&nb=
sp; The options we considered were to either raise a new erratum or publish=
 this bis-draft as a new RFC.&nbsp; After discussion we decided to do both,=
 which is why the proposed changes are now
 in the errata system.&nbsp; I do understand your points and I tend to agre=
e on reflection that some of the changes in erratum 4867 are not really sui=
table for an Errata Report.&nbsp; However I must stress that the erratum wa=
s raised _<i>after</i>_ the changes were announced
 and discussed, and there did seem to be consensus behind those changes (or=
 at least, no dissention).<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">Best regards<o:p></o:p=
></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">Jon<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><span lang=3D"EN-US" style=3D"mso-fareast-languag=
e:EN-GB">From:</span></b><span lang=3D"EN-US" style=3D"mso-fareast-language=
:EN-GB"> Adrian Farrel [mailto:adrian@olddog.co.uk]
<br>
<b>Sent:</b> 28 March 2017 17:18<br>
<b>To:</b> Jonathan Hardwick &lt;Jonathan.Hardwick@metaswitch.com&gt;; pce@=
ietf.org<br>
<b>Subject:</b> RE: [Pce] Working group last call for draft-ietf-pce-rfc600=
6bis-00<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">Hi Jon,<o:p></o:p></sp=
an></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">I see that WG last cal=
l completed in silence. Possibly a function of<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">people preparing for I=
ETF-98. Maybe just means that everyone thinks
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">it is obvious to updat=
e the RFC and move on.<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">Anyway, since I'm sitt=
ing in a WG meeting where the discussion is a<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">little too esoteric ev=
en for me, here is a quick (but late) review.<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">Cheers,<o:p></o:p></sp=
an></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">Adrian<o:p></o:p></spa=
n></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">=3D=3D=3D<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">Unfortunate effect of =
a bis is that the author count has gone OTT.<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></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">A bit odd to wipe the =
Acknowledgements of the people who contributed to<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">RFC 6006.<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></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">Why has Zafar disappea=
red from the Authors' Addresses (but remains on<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">the front page)?<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></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">Good job picking up th=
e five errata that are on file.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">I was a little surpris=
ed to see some additional changes that have not<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">been flagged to the WG=
 nor noted anywhere in the document (e.g., in a<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">changes section such a=
s Appendix A).<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></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">I see you added some t=
ext to 3.4. I see that this text is to explain<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">the RBNF that follows,=
 so that is probably OK.<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></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">I must have missed the=
 discussion of Errata Report 4867. Sorry about<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">that.<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">There are three issues=
, I think<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">1. Trying to pack all =
RBNF into the spec as though the RBNF was the<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">&nbsp;&nbsp; normative=
 definition of the message format. It isn't and was never<o:p></o:p></span>=
</p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">&nbsp;&nbsp; intended =
to be.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">&nbsp;&nbsp; Doing thi=
s gets infinitely complicated as more objects are added.<o:p></o:p></span><=
/p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">&nbsp;&nbsp; Doesn't m=
ean what you have done is wrong, wrt svec-list, just not<o:p></o:p></span><=
/p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">&nbsp;&nbsp; necessary=
.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">2. Removal of &lt;BAND=
WIDTH&gt; from &lt;RRO-List&gt; is wrong, I think.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">&nbsp;&nbsp; As I see =
it:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">&nbsp;&nbsp;&nbsp;&nbs=
p; You can apply &lt;BANDWIDTH&gt; to the whole &lt;RRO-List&gt; by placing=
 it<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">&nbsp;&nbsp;&nbsp;&nbs=
p; after the &lt;RRO-List&gt;.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">&nbsp;&nbsp;&nbsp;&nbs=
p; If you want one &lt;RRO&gt; in an &lt;RRO-List&gt; to have a different<o=
:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">&nbsp;&nbsp;&nbsp;&nbs=
p; &lt;BANDWIDTH&gt; you can include a separate &lt;BANDWIDTH&gt; after the=
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">&nbsp;&nbsp;&nbsp;&nbs=
p; &lt;RRO&gt;.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">&nbsp;&nbsp; I think y=
ou have *changed* the specification so that the way this<o:p></o:p></span><=
/p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">&nbsp;&nbsp; function =
is achieved is to pull the &lt;RRO&gt; that has a different<o:p></o:p></spa=
n></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">&nbsp;&nbsp; &lt;BANDW=
IDTH&gt; out into a different &lt;RRO-List&gt;.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">&nbsp;&nbsp; That's fu=
nctional and can be changed if that is what people want<o:p></o:p></span></=
p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">&nbsp;&nbsp; and have =
discussed, but doing it with an Errata is a mistake because<o:p></o:p></spa=
n></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">&nbsp;&nbsp; it was no=
t an error in the document.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">3. You also see to thi=
nk that &lt;BANDWIDTH&gt; cannot be applied to the<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">&nbsp;&nbsp; &lt;END-P=
OINTS&gt; unless an &lt;RRO-LIST&gt; is present. I think that is<o:p></o:p>=
</span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">&nbsp;&nbsp; wrong, to=
o.&nbsp; If it makes sense to have &lt;END-POINTS&gt; without an<o:p></o:p>=
</span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">&nbsp;&nbsp; an &lt;RR=
O-List&gt; why would you not allow each instance of &lt;END-POINTS&gt;<o:p>=
</o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">&nbsp;&nbsp; to have i=
ts own &lt;BANDWIDTH&gt;? This also seems to be a change of<o:p></o:p></spa=
n></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">&nbsp;&nbsp; substance=
 rather than an error in the document. Again, the WG is<o:p></o:p></span></=
p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">&nbsp;&nbsp; free to m=
ake this change, but surely not without discussion.<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></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">I see you have added s=
ome text to 3.5. This also seems to be just<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">explanation and is pro=
bably OK.<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></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">The fix in 3.12 looks =
good, but was not flagged to the WG.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></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 #B5C4DF 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US" style=3D"font-size:10.0pt;fo=
nt-family:&quot;Tahoma&quot;,sans-serif;mso-fareast-language:EN-GB">From:</=
span></b><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-family:&quot;T=
ahoma&quot;,sans-serif;mso-fareast-language:EN-GB"> Pce [<a href=3D"mailto:=
pce-bounces@ietf.org">mailto:pce-bounces@ietf.org</a>]
<b>On Behalf Of </b>Jonathan Hardwick<br>
<b>Sent:</b> 10 March 2017 13:55<br>
<b>To:</b> <a href=3D"mailto:pce@ietf.org">pce@ietf.org</a><br>
<b>Subject:</b> [Pce] Working group last call for draft-ietf-pce-rfc6006bis=
-00<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Dear PCE working group,<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">This email starts a working group last call for draf=
t-ietf-pce-rfc6006bis-00.<o:p></o:p></p>
<p class=3D"MsoPlainText"><a href=3D"https://datatracker.ietf.org/doc/draft=
-ietf-pce-rfc6006bis/">https://datatracker.ietf.org/doc/draft-ietf-pce-rfc6=
006bis/</a><o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Please read the document and reply to the PCE mailin=
g list whether you believe this document is ready to be published, or not (=
including any comments on why not).&nbsp; The last call will end on
<b>Monday 20 March</b>.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Best regards<o:p></o:p></p>
<p class=3D"MsoNormal">Jon, JP and Julien<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>
</div>
</body>
</html>

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Reply-To: <adrian@olddog.co.uk>
From: "Adrian Farrel" <adrian@olddog.co.uk>
To: "'Qin Wu'" <bill.wu@huawei.com>, <pce@ietf.org>
References: <B8F9A780D330094D99AF023C5877DABA9A80690E@nkgeml513-mbs.china.huawei.com>
In-Reply-To: <B8F9A780D330094D99AF023C5877DABA9A80690E@nkgeml513-mbs.china.huawei.com>
Date: Wed, 29 Mar 2017 00:10:11 +0100
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Archived-At: <https://mailarchive.ietf.org/arch/msg/pce/I2DJz3Gl1zW151-ZREhdu_30D1A>
Subject: Re: [Pce] Update of draft-wu-pce-traffic-steering-sfc-11
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Thanks for the update, Qin.
 
As I said to you in private conversation, I think this is good work, in scope
for the WG, and useful.
The high revision number of the document reflects, I believe, that you saw the
future and started the work quite a bit earlier than anyone was ready for. I
think we are ready now.
 
The one (small) thing I mentioned that I would like to see added to the draft is
a small section that relates this work to draft-ietf-bess-nsh-bgp-control-plane.
It seems to me that everything is compatible and all we need to do is describe
briefly how the pieces it together.
 
If you like, I can suggest text.
 
Thanks,
Adrian
 
 
From: Pce [mailto:pce-bounces@ietf.org] On Behalf Of Qin Wu
Sent: 28 March 2017 00:42
To: pce@ietf.org
Subject: [Pce] Update of draft-wu-pce-traffic-steering-sfc-11
 
Hi, All:
Didn't get time to introduce PCEP extension for SFC support:
Here is the update of draft-wu-pce-traffic-steering-sfc-11
<https://tools.ietf.org/html/draft-wu-pce-traffic-steering-sfc-11> , 
https://www.ietf.org/proceedings/98/slides/slides-98-pce-42-pcep-extensions-for-
sfc-00.pdf
This draft provides PCEP extension to address Path computation and
classification requirements defined in RFC7665 and 
I-D.ietf-sfc-control-plane. It is also aligned with SFC control plane and teas
WG pce central control drafts.
 
This draft has been around several IETF meetings and became stable when several
dependent documents have been solid as basis.
Before this meeting, we recieved a few comments from SFC chairs and it has been
addressed in v-(11).
We are happy to recieve additional comments if you have. Thanks!
 
-Qin
 
 
 
 

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<o:shapedefaults v:ext=3D"edit" spidmax=3D"1026" />
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</o:shapelayout></xml><![endif]--></head><body lang=3DEN-GB link=3Dblue =
vlink=3Dpurple style=3D'tab-interval:36.0pt'><div =
class=3DWordSection1><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-=
font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D'>Thanks for the update, =
Qin.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-=
font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-=
font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D'>As I said to you in private conversation, I think =
this is good work, in scope for the WG, and =
useful.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-=
font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D'>The high revision number of the document reflects, =
I believe, that you saw the future and started the work quite a bit =
earlier than anyone was ready for. I think we are ready =
now.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-=
font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-=
font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D'>The one (small) thing I mentioned that I would =
like to see added to the draft is a small section that relates this work =
to draft-ietf-bess-nsh-bgp-control-plane. It seems to me that everything =
is compatible and all we need to do is describe briefly how the pieces =
it together.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-=
font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-=
font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D'>If you like, I can suggest =
text.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-=
font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-=
font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D'>Thanks,<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-=
font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D'>Adrian<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-=
font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";mso-fareast-=
font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><div =
style=3D'border:none;border-right:solid blue 1.5pt;padding:0cm 0cm 0cm =
4.0pt'><div><div style=3D'border:none;border-top:solid #B5C4DF =
1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=3DMsoNormal><b><span =
lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-ansi-lang=
uage:EN-US'>From:</span></b><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-ansi-lang=
uage:EN-US'> Pce [mailto:pce-bounces@ietf.org] <b>On Behalf Of </b>Qin =
Wu<br><b>Sent:</b> 28 March 2017 00:42<br><b>To:</b> =
pce@ietf.org<br><b>Subject:</b> [Pce] Update of =
draft-wu-pce-traffic-steering-sfc-11<o:p></o:p></span></p></div></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><div><p><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'>=
Hi, All:<o:p></o:p></span></p><p><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'>=
Didn't get time to introduce PCEP extension for SFC =
support:<o:p></o:p></span></p><p><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'>=
Here is the update of <a =
href=3D"https://tools.ietf.org/html/draft-wu-pce-traffic-steering-sfc-11"=
>draft-wu-pce-traffic-steering-sfc-11</a>, =
<o:p></o:p></span></p><p><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'>=
<a =
href=3D"https://www.ietf.org/proceedings/98/slides/slides-98-pce-42-pcep-=
extensions-for-sfc-00.pdf">https://www.ietf.org/proceedings/98/slides/sli=
des-98-pce-42-pcep-extensions-for-sfc-00.pdf</a><o:p></o:p></span></p><p>=
<span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'>=
This draft provides PCEP extension to address Path computation and =
classification requirements defined in RFC7665 and =
<o:p></o:p></span></p><p><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'>=
I-D.ietf-sfc-control-plane. It is also&nbsp;aligned with SFC control =
plane and teas WG pce central control =
drafts.<o:p></o:p></span></p><p><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'>=
&nbsp;<o:p></o:p></span></p><p><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'>=
This draft has been around several IETF meetings and became stable when =
several dependent documents have been solid as =
basis.<o:p></o:p></span></p><p><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'>=
Before this meeting, we recieved a few comments from&nbsp;SFC chairs and =
it has been addressed in v-(11).<o:p></o:p></span></p><p><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'>=
We are happy to recieve additional comments if you have. =
Thanks!<o:p></o:p></span></p><p><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'>=
&nbsp;<o:p></o:p></span></p><p><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'>=
-Qin<o:p></o:p></span></p><p><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'>=
&nbsp;<o:p></o:p></span></p><p><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'>=
&nbsp;<o:p></o:p></span></p><p><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'>=
&nbsp;<o:p></o:p></span></p><p><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";color:black'>=
&nbsp;<o:p></o:p></span></p></div></div></div></body></html>
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From: Qin Wu <bill.wu@huawei.com>
To: "pce@ietf.org" <pce@ietf.org>, adrian <adrian@olddog.co.uk>
Thread-Topic: [Pce] Update of draft-wu-pce-traffic-steering-sfc-11
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Date: Wed, 29 Mar 2017 00:03:39 +0000
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<body lang=3D"EN-GB" link=3D"blue" vlink=3D"purple" style=3D"">
<div>Adrian:<br>
Good&nbsp;feedback&nbsp;and&nbsp;happy&nbsp;to&nbsp;see&nbsp;your&nbsp;prop=
osal,:-)<br>
<br>
-Qin<br>
Sent&nbsp;from&nbsp;HUAWEI&nbsp;AnyOffice</div>
<div name=3D"AnyOffice-Background-Image" style=3D"border-top:1px solid #B5C=
4DF; font-size:14px; line-height:20px; padding:8px">
<div><b>=B7=A2=BC=FE=C8=CB=A3=BA </b>adrian</div>
<div><b>=CA=D5=BC=FE=C8=CB=A3=BA </b>Qin Wu; pce@ietf.org; </div>
<div><b>=D6=F7=CC=E2=A3=BA </b>RE: [Pce] Update of draft-wu-pce-traffic-ste=
ering-sfc-11</div>
<div><b>=CA=B1=BC=E4=A3=BA </b>2017-03-28 18:10:27</div>
<div><br>
<br>
</div>
</div>
<div>
<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt; font-family:&quot;C=
alibri&quot;,&quot;sans-serif&quot;; color:#1F497D">Thanks for the update, =
Qin.</span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt; font-family:&quot;C=
alibri&quot;,&quot;sans-serif&quot;; color:#1F497D">&nbsp;</span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt; font-family:&quot;C=
alibri&quot;,&quot;sans-serif&quot;; color:#1F497D">As I said to you in pri=
vate conversation, I think this is good work, in scope for the WG, and usef=
ul.</span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt; font-family:&quot;C=
alibri&quot;,&quot;sans-serif&quot;; color:#1F497D">The high revision numbe=
r of the document reflects, I believe, that you saw the future and started =
the work quite a bit earlier than anyone was ready for.
 I think we are ready now.</span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt; font-family:&quot;C=
alibri&quot;,&quot;sans-serif&quot;; color:#1F497D">&nbsp;</span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt; font-family:&quot;C=
alibri&quot;,&quot;sans-serif&quot;; color:#1F497D">The one (small) thing I=
 mentioned that I would like to see added to the draft is a small section t=
hat relates this work to draft-ietf-bess-nsh-bgp-control-plane.
 It seems to me that everything is compatible and all we need to do is desc=
ribe briefly how the pieces it together.</span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt; font-family:&quot;C=
alibri&quot;,&quot;sans-serif&quot;; color:#1F497D">&nbsp;</span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt; font-family:&quot;C=
alibri&quot;,&quot;sans-serif&quot;; color:#1F497D">If you like, I can sugg=
est text.</span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt; font-family:&quot;C=
alibri&quot;,&quot;sans-serif&quot;; color:#1F497D">&nbsp;</span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt; font-family:&quot;C=
alibri&quot;,&quot;sans-serif&quot;; color:#1F497D">Thanks,</span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt; font-family:&quot;C=
alibri&quot;,&quot;sans-serif&quot;; color:#1F497D">Adrian</span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt; font-family:&quot;C=
alibri&quot;,&quot;sans-serif&quot;; color:#1F497D">&nbsp;</span></p>
<p class=3D"MsoNormal"><span style=3D"font-size:11.0pt; font-family:&quot;C=
alibri&quot;,&quot;sans-serif&quot;; color:#1F497D">&nbsp;</span></p>
<div style=3D"border:none; border-right:solid blue 1.5pt; padding:0cm 0cm 0=
cm 4.0pt">
<div>
<div style=3D"border:none; border-top:solid #B5C4DF 1.0pt; padding:3.0pt 0c=
m 0cm 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US" style=3D"font-size:10.0pt; f=
ont-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;">From:</span></b><span=
 lang=3D"EN-US" style=3D"font-size:10.0pt; font-family:&quot;Tahoma&quot;,&=
quot;sans-serif&quot;"> Pce [mailto:pce-bounces@ietf.org]
<b>On Behalf Of </b>Qin Wu<br>
<b>Sent:</b> 28 March 2017 00:42<br>
<b>To:</b> pce@ietf.org<br>
<b>Subject:</b> [Pce] Update of draft-wu-pce-traffic-steering-sfc-11</span>=
</p>
</div>
</div>
<p class=3D"MsoNormal">&nbsp;</p>
<div>
<p><span style=3D"font-size:10.0pt; font-family:&quot;Tahoma&quot;,&quot;sa=
ns-serif&quot;; color:black">Hi, All:</span></p>
<p><span style=3D"font-size:10.0pt; font-family:&quot;Tahoma&quot;,&quot;sa=
ns-serif&quot;; color:black">Didn't get time to introduce PCEP extension fo=
r SFC support:</span></p>
<p><span style=3D"font-size:10.0pt; font-family:&quot;Tahoma&quot;,&quot;sa=
ns-serif&quot;; color:black">Here is the update of
<a href=3D"https://tools.ietf.org/html/draft-wu-pce-traffic-steering-sfc-11=
">draft-wu-pce-traffic-steering-sfc-11</a>,
</span></p>
<p><span style=3D"font-size:10.0pt; font-family:&quot;Tahoma&quot;,&quot;sa=
ns-serif&quot;; color:black"><a href=3D"https://www.ietf.org/proceedings/98=
/slides/slides-98-pce-42-pcep-extensions-for-sfc-00.pdf">https://www.ietf.o=
rg/proceedings/98/slides/slides-98-pce-42-pcep-extensions-for-sfc-00.pdf</a=
></span></p>
<p><span style=3D"font-size:10.0pt; font-family:&quot;Tahoma&quot;,&quot;sa=
ns-serif&quot;; color:black">This draft provides PCEP extension to address =
Path computation and classification requirements defined in RFC7665 and
</span></p>
<p><span style=3D"font-size:10.0pt; font-family:&quot;Tahoma&quot;,&quot;sa=
ns-serif&quot;; color:black">I-D.ietf-sfc-control-plane. It is also&nbsp;al=
igned with SFC control plane and teas WG pce central control drafts.</span>=
</p>
<p><span style=3D"font-size:10.0pt; font-family:&quot;Tahoma&quot;,&quot;sa=
ns-serif&quot;; color:black">&nbsp;</span></p>
<p><span style=3D"font-size:10.0pt; font-family:&quot;Tahoma&quot;,&quot;sa=
ns-serif&quot;; color:black">This draft has been around several IETF meetin=
gs and became stable when several dependent documents have been solid as ba=
sis.</span></p>
<p><span style=3D"font-size:10.0pt; font-family:&quot;Tahoma&quot;,&quot;sa=
ns-serif&quot;; color:black">Before this meeting, we recieved a few comment=
s from&nbsp;SFC chairs and it has been addressed in v-(11).</span></p>
<p><span style=3D"font-size:10.0pt; font-family:&quot;Tahoma&quot;,&quot;sa=
ns-serif&quot;; color:black">We are happy to recieve additional comments if=
 you have. Thanks!</span></p>
<p><span style=3D"font-size:10.0pt; font-family:&quot;Tahoma&quot;,&quot;sa=
ns-serif&quot;; color:black">&nbsp;</span></p>
<p><span style=3D"font-size:10.0pt; font-family:&quot;Tahoma&quot;,&quot;sa=
ns-serif&quot;; color:black">-Qin</span></p>
<p><span style=3D"font-size:10.0pt; font-family:&quot;Tahoma&quot;,&quot;sa=
ns-serif&quot;; color:black">&nbsp;</span></p>
<p><span style=3D"font-size:10.0pt; font-family:&quot;Tahoma&quot;,&quot;sa=
ns-serif&quot;; color:black">&nbsp;</span></p>
<p><span style=3D"font-size:10.0pt; font-family:&quot;Tahoma&quot;,&quot;sa=
ns-serif&quot;; color:black">&nbsp;</span></p>
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From nobody Tue Mar 28 17:04:12 2017
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From: "Adrian Farrel" <adrian@olddog.co.uk>
To: "'Jonathan Hardwick'" <Jonathan.Hardwick@metaswitch.com>, <pce@ietf.org>,  <draft-ietf-pce-rfc6006bis@ietf.org>
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Date: Wed, 29 Mar 2017 01:03:58 +0100
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Subject: Re: [Pce] Working group last call for draft-ietf-pce-rfc6006bis-00
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OK.
Got it. 
Thanks.
Adrian
--
Support an author and your imagination.
Tales from the Wood - Eighteen new fairy tales.
More Tales from the Wood - Eighteen MORE new fairy tales.
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Or buy from me direct.
 
 
 
From: Jonathan Hardwick [mailto:Jonathan.Hardwick@metaswitch.com] 
Sent: 29 March 2017 00:00
To: adrian@olddog.co.uk; pce@ietf.org; draft-ietf-pce-rfc6006bis@ietf.org
Subject: RE: [Pce] Working group last call for draft-ietf-pce-rfc6006bis-00
 
Hi Adrian,
 
Many thanks for your comments.  I will let the document authors reply to your
points, but I just wanted to clarify the process that we've followed.
 
The draft, and a summary of the changes it introduced, was advertised to the
working group with an email to the list on 3 Nov last year.  The authors
followed this up with a presentation at IETF 97, where they asked for guidance
on how to proceed with the issues they were raising.  The options we considered
were to either raise a new erratum or publish this bis-draft as a new RFC.
After discussion we decided to do both, which is why the proposed changes are
now in the errata system.  I do understand your points and I tend to agree on
reflection that some of the changes in erratum 4867 are not really suitable for
an Errata Report.  However I must stress that the erratum was raised _after_ the
changes were announced and discussed, and there did seem to be consensus behind
those changes (or at least, no dissention).
 
Best regards
Jon
 
 
From: Adrian Farrel [mailto:adrian@olddog.co.uk] 
Sent: 28 March 2017 17:18
To: Jonathan Hardwick <Jonathan.Hardwick@metaswitch.com>; pce@ietf.org
Subject: RE: [Pce] Working group last call for draft-ietf-pce-rfc6006bis-00
 
Hi Jon,
 
I see that WG last call completed in silence. Possibly a function of
people preparing for IETF-98. Maybe just means that everyone thinks 
it is obvious to update the RFC and move on.
 
Anyway, since I'm sitting in a WG meeting where the discussion is a
little too esoteric even for me, here is a quick (but late) review.
 
Cheers,
Adrian
 
===
 
Unfortunate effect of a bis is that the author count has gone OTT.
 
---
 
A bit odd to wipe the Acknowledgements of the people who contributed to
RFC 6006.
 
---
 
Why has Zafar disappeared from the Authors' Addresses (but remains on
the front page)?
 
---
 
Good job picking up the five errata that are on file.
I was a little surprised to see some additional changes that have not
been flagged to the WG nor noted anywhere in the document (e.g., in a
changes section such as Appendix A).
 
---
 
I see you added some text to 3.4. I see that this text is to explain
the RBNF that follows, so that is probably OK.
 
---
 
I must have missed the discussion of Errata Report 4867. Sorry about
that.
 
There are three issues, I think
1. Trying to pack all RBNF into the spec as though the RBNF was the
   normative definition of the message format. It isn't and was never
   intended to be.
   Doing this gets infinitely complicated as more objects are added.
   Doesn't mean what you have done is wrong, wrt svec-list, just not
   necessary.
2. Removal of <BANDWIDTH> from <RRO-List> is wrong, I think.
   As I see it:
     You can apply <BANDWIDTH> to the whole <RRO-List> by placing it
     after the <RRO-List>.
     If you want one <RRO> in an <RRO-List> to have a different
     <BANDWIDTH> you can include a separate <BANDWIDTH> after the
     <RRO>.
   I think you have *changed* the specification so that the way this
   function is achieved is to pull the <RRO> that has a different
   <BANDWIDTH> out into a different <RRO-List>.
   That's functional and can be changed if that is what people want
   and have discussed, but doing it with an Errata is a mistake because
   it was not an error in the document.
3. You also see to think that <BANDWIDTH> cannot be applied to the
   <END-POINTS> unless an <RRO-LIST> is present. I think that is
   wrong, too.  If it makes sense to have <END-POINTS> without an
   an <RRO-List> why would you not allow each instance of <END-POINTS>
   to have its own <BANDWIDTH>? This also seems to be a change of
   substance rather than an error in the document. Again, the WG is
   free to make this change, but surely not without discussion.
 
---
 
I see you have added some text to 3.5. This also seems to be just
explanation and is probably OK.
 
---
 
The fix in 3.12 looks good, but was not flagged to the WG.
 
From: Pce [mailto:pce-bounces@ietf.org] On Behalf Of Jonathan Hardwick
Sent: 10 March 2017 13:55
To: pce@ietf.org
Subject: [Pce] Working group last call for draft-ietf-pce-rfc6006bis-00
 
Dear PCE working group,
 
This email starts a working group last call for draft-ietf-pce-rfc6006bis-00.
https://datatracker.ietf.org/doc/draft-ietf-pce-rfc6006bis/
 
Please read the document and reply to the PCE mailing list whether you believe
this document is ready to be published, or not (including any comments on why
not).  The last call will end on Monday 20 March.
 
Best regards
Jon, JP and Julien
 
 

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<o:shapelayout v:ext=3D"edit">
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</o:shapelayout></xml><![endif]--></head><body lang=3DEN-GB =
link=3D"#0563C1" vlink=3D"#954F72" style=3D'tab-interval:36.0pt'><div =
class=3DWordSection1><p class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'>OK.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'>Got it. =
<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'>Thanks.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'>Adrian<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-fareast-font-family:"Times =
New Roman";mso-hansi-font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D;mso-fareast-language:EN-GB;mso-no-proof:yes'>--<o:p>=
</o:p></span></p><p class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-fareast-font-family:"Times =
New Roman";mso-hansi-font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D;mso-fareast-language:EN-GB;mso-no-proof:yes'>Support=
 an author and your imagination.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-fareast-font-family:"Times =
New Roman";mso-hansi-font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D;mso-fareast-language:EN-GB;mso-no-proof:yes'>Tales =
from the Wood - Eighteen new fairy tales.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-fareast-font-family:"Times =
New Roman";mso-hansi-font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D;mso-fareast-language:EN-GB;mso-no-proof:yes'>More =
Tales from the Wood - Eighteen MORE new fairy =
tales.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-fareast-font-family:"Times =
New Roman";mso-hansi-font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D;mso-fareast-language:EN-GB;mso-no-proof:yes'>https:/=
/www.feedaread.com/profiles/8604/<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-fareast-font-family:"Times =
New Roman";mso-hansi-font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D;mso-fareast-language:EN-GB;mso-no-proof:yes'>http://=
www.amazon.co.uk/Tales-Wood-Adrian-Farrel/dp/1786100924<o:p></o:p></span>=
</p><p class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-fareast-font-family:"Times =
New Roman";mso-hansi-font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D;mso-fareast-language:EN-GB;mso-no-proof:yes'>Or buy =
from me direct.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><div =
style=3D'border:none;border-right:solid blue 1.5pt;padding:0cm 0cm 0cm =
4.0pt'><div><div style=3D'border:none;border-top:solid #B5C4DF =
1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=3DMsoNormal><b><span =
lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-fareast-f=
ont-family:"Times New =
Roman";mso-ansi-language:EN-US;mso-fareast-language:EN-GB'>From:</span></=
b><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-fareast-f=
ont-family:"Times New =
Roman";mso-ansi-language:EN-US;mso-fareast-language:EN-GB'> Jonathan =
Hardwick [mailto:Jonathan.Hardwick@metaswitch.com] <br><b>Sent:</b> 29 =
March 2017 00:00<br><b>To:</b> adrian@olddog.co.uk; pce@ietf.org; =
draft-ietf-pce-rfc6006bis@ietf.org<br><b>Subject:</b> RE: [Pce] Working =
group last call for =
draft-ietf-pce-rfc6006bis-00<o:p></o:p></span></p></div></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>Hi Adrian,<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>Many thanks for your =
comments.&nbsp; I will let the document authors reply to your points, =
but I just wanted to clarify the process that we&#8217;ve =
followed.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>The draft, and a summary =
of the changes it introduced, was advertised to the working group with =
an email to the list on 3 Nov last year.&nbsp; The authors followed this =
up with a presentation at IETF 97, where they asked for guidance on how =
to proceed with the issues they were raising.&nbsp; The options we =
considered were to either raise a new erratum or publish this bis-draft =
as a new RFC.&nbsp; After discussion we decided to do both, which is why =
the proposed changes are now in the errata system.&nbsp; I do understand =
your points and I tend to agree on reflection that some of the changes =
in erratum 4867 are not really suitable for an Errata Report.&nbsp; =
However I must stress that the erratum was raised _<i>after</i>_ the =
changes were announced and discussed, and there did seem to be consensus =
behind those changes (or at least, no =
dissention).<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>Best =
regards<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>Jon<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'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=3DMsoNormal><b><span lang=3DEN-US =
style=3D'mso-ansi-language:EN-US;mso-fareast-language:EN-GB'>From:</span>=
</b><span lang=3DEN-US =
style=3D'mso-ansi-language:EN-US;mso-fareast-language:EN-GB'> Adrian =
Farrel [mailto:adrian@olddog.co.uk] <br><b>Sent:</b> 28 March 2017 =
17:18<br><b>To:</b> Jonathan Hardwick =
&lt;Jonathan.Hardwick@metaswitch.com&gt;; =
pce@ietf.org<br><b>Subject:</b> RE: [Pce] Working group last call for =
draft-ietf-pce-rfc6006bis-00<o:p></o:p></span></p></div></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>Hi Jon,<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>I see that WG last call =
completed in silence. Possibly a function of<o:p></o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>people preparing for =
IETF-98. Maybe just means that everyone thinks <o:p></o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>it is obvious to update =
the RFC and move on.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>Anyway, since I'm =
sitting in a WG meeting where the discussion is =
a<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>little too esoteric even for me, here is a quick =
(but late) review.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'>Cheers,<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'>Adrian<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'>=3D=3D=3D<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>Unfortunate effect of a =
bis is that the author count has gone OTT.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'>---<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>A bit odd to wipe the =
Acknowledgements of the people who contributed =
to<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>RFC 6006.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'>---<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>Why has Zafar =
disappeared from the Authors' Addresses (but remains =
on<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>the front page)?<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'>---<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>Good job picking up the =
five errata that are on file.<o:p></o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>I was a little surprised =
to see some additional changes that have not<o:p></o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>been flagged to the WG =
nor noted anywhere in the document (e.g., in a<o:p></o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>changes section such as =
Appendix A).<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'>---<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>I see you added some =
text to 3.4. I see that this text is to explain<o:p></o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>the RBNF that follows, =
so that is probably OK.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'>---<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>I must have missed the =
discussion of Errata Report 4867. Sorry about<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'>that.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>There are three issues, =
I think<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>1. Trying to pack all RBNF into the spec as =
though the RBNF was the<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>&nbsp;&nbsp; normative definition of the message =
format. It isn't and was never<o:p></o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>&nbsp;&nbsp; intended to =
be.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>&nbsp;&nbsp; Doing this gets infinitely =
complicated as more objects are added.<o:p></o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>&nbsp;&nbsp; Doesn't =
mean what you have done is wrong, wrt svec-list, just =
not<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>&nbsp;&nbsp; necessary.<o:p></o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>2. Removal of =
&lt;BANDWIDTH&gt; from &lt;RRO-List&gt; is wrong, I =
think.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>&nbsp;&nbsp; As I see =
it:<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>&nbsp;&nbsp;&nbsp;&nbsp; You can apply =
&lt;BANDWIDTH&gt; to the whole &lt;RRO-List&gt; by placing =
it<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>&nbsp;&nbsp;&nbsp;&nbsp; after the =
&lt;RRO-List&gt;.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>&nbsp;&nbsp;&nbsp;&nbsp; If you want one =
&lt;RRO&gt; in an &lt;RRO-List&gt; to have a =
different<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>&nbsp;&nbsp;&nbsp;&nbsp; &lt;BANDWIDTH&gt; you =
can include a separate &lt;BANDWIDTH&gt; after =
the<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>&nbsp;&nbsp;&nbsp;&nbsp; =
&lt;RRO&gt;.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>&nbsp;&nbsp; I think you have *changed* the =
specification so that the way this<o:p></o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>&nbsp;&nbsp; function is =
achieved is to pull the &lt;RRO&gt; that has a =
different<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>&nbsp;&nbsp; &lt;BANDWIDTH&gt; out into a =
different &lt;RRO-List&gt;.<o:p></o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>&nbsp;&nbsp; That's =
functional and can be changed if that is what people =
want<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>&nbsp;&nbsp; and have discussed, but doing it =
with an Errata is a mistake because<o:p></o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>&nbsp;&nbsp; it was not =
an error in the document.<o:p></o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>3. You also see to think =
that &lt;BANDWIDTH&gt; cannot be applied to the<o:p></o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>&nbsp;&nbsp; =
&lt;END-POINTS&gt; unless an &lt;RRO-LIST&gt; is present. I think that =
is<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>&nbsp;&nbsp; wrong, too.&nbsp; If it makes sense =
to have &lt;END-POINTS&gt; without an<o:p></o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>&nbsp;&nbsp; an =
&lt;RRO-List&gt; why would you not allow each instance of =
&lt;END-POINTS&gt;<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>&nbsp;&nbsp; to have its own &lt;BANDWIDTH&gt;? =
This also seems to be a change of<o:p></o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>&nbsp;&nbsp; substance =
rather than an error in the document. Again, the WG =
is<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>&nbsp;&nbsp; free to make this change, but =
surely not without discussion.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'>---<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>I see you have added =
some text to 3.5. This also seems to be just<o:p></o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>explanation and is =
probably OK.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'>---<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>The fix in 3.12 looks =
good, but was not flagged to the WG.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><div =
style=3D'border:none;border-right:solid blue 1.5pt;padding:0cm 0cm 0cm =
4.0pt'><div><div style=3D'border:none;border-top:solid #B5C4DF =
1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=3DMsoNormal><b><span =
lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-ansi-lang=
uage:EN-US;mso-fareast-language:EN-GB'>From:</span></b><span =
lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-ansi-lang=
uage:EN-US;mso-fareast-language:EN-GB'> Pce [<a =
href=3D"mailto:pce-bounces@ietf.org">mailto:pce-bounces@ietf.org</a>] =
<b>On Behalf Of </b>Jonathan Hardwick<br><b>Sent:</b> 10 March 2017 =
13:55<br><b>To:</b> <a =
href=3D"mailto:pce@ietf.org">pce@ietf.org</a><br><b>Subject:</b> [Pce] =
Working group last call for =
draft-ietf-pce-rfc6006bis-00<o:p></o:p></span></p></div></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>Dear PCE =
working group,<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>This email =
starts a working group last call for =
draft-ietf-pce-rfc6006bis-00.<o:p></o:p></p><p class=3DMsoPlainText><a =
href=3D"https://datatracker.ietf.org/doc/draft-ietf-pce-rfc6006bis/">http=
s://datatracker.ietf.org/doc/draft-ietf-pce-rfc6006bis/</a><o:p></o:p></p=
><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>Please =
read the document and reply to the PCE mailing list whether you believe =
this document is ready to be published, or not (including any comments =
on why not).&nbsp; The last call will end on <b>Monday 20 =
March</b>.<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>Best regards<o:p></o:p></p><p class=3DMsoNormal>Jon, =
JP and Julien<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div></div></div></body></html>
------=_NextPart_000_033D_01D2A828.5B31BC30--



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Thread-Topic: [Pce] Working group last call for draft-ietf-pce-rfc6006bis-00
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Hi WG,

Adrian, Jon and I had a quick chat (the benefit of getting comments during =
the IETF week).
See inline for details...

From: Pce [mailto:pce-bounces@ietf.org] On Behalf Of Adrian Farrel
Sent: 28 March 2017 17:18
To: 'Jonathan Hardwick' <Jonathan.Hardwick@metaswitch.com>; pce@ietf.org
Subject: Re: [Pce] Working group last call for draft-ietf-pce-rfc6006bis-00

Hi Jon,

I see that WG last call completed in silence. Possibly a function of
people preparing for IETF-98. Maybe just means that everyone thinks
it is obvious to update the RFC and move on.

Anyway, since I'm sitting in a WG meeting where the discussion is a
little too esoteric even for me, here is a quick (but late) review.

Cheers,
Adrian

=3D=3D=3D

Unfortunate effect of a bis is that the author count has gone OTT.

[Dhruv] Yes, I think this can be added in the shepherd report and hopefully=
 that should be fine.
---

A bit odd to wipe the Acknowledgements of the people who contributed to
RFC 6006.

[Dhruv] Ack
---

Why has Zafar disappeared from the Authors' Addresses (but remains on
the front page)?

[Dhruv] Oops, my mistake. Fixed.
---

Good job picking up the five errata that are on file.
I was a little surprised to see some additional changes that have not
been flagged to the WG nor noted anywhere in the document (e.g., in a
changes section such as Appendix A).

---

I see you added some text to 3.4. I see that this text is to explain
the RBNF that follows, so that is probably OK.

---

I must have missed the discussion of Errata Report 4867. Sorry about
that.

There are three issues, I think
1. Trying to pack all RBNF into the spec as though the RBNF was the
   normative definition of the message format. It isn't and was never
   intended to be.
   Doing this gets infinitely complicated as more objects are added.
   Doesn't mean what you have done is wrong, wrt svec-list, just not
   necessary.
2. Removal of <BANDWIDTH> from <RRO-List> is wrong, I think.
   As I see it:
     You can apply <BANDWIDTH> to the whole <RRO-List> by placing it
     after the <RRO-List>.
     If you want one <RRO> in an <RRO-List> to have a different
     <BANDWIDTH> you can include a separate <BANDWIDTH> after the
     <RRO>.
   I think you have *changed* the specification so that the way this
   function is achieved is to pull the <RRO> that has a different
   <BANDWIDTH> out into a different <RRO-List>.
   That's functional and can be changed if that is what people want
   and have discussed, but doing it with an Errata is a mistake because
   it was not an error in the document.
3. You also see to think that <BANDWIDTH> cannot be applied to the
   <END-POINTS> unless an <RRO-LIST> is present. I think that is
   wrong, too.  If it makes sense to have <END-POINTS> without an
   an <RRO-List> why would you not allow each instance of <END-POINTS>
   to have its own <BANDWIDTH>? This also seems to be a change of
   substance rather than an error in the document. Again, the WG is
   free to make this change, but surely not without discussion.

[Dhruv] https://tools.ietf.org//rfcdiff?url1=3DRFC6006&url2=3Ddraft-ietf-pc=
e-rfc6006bis-00<https://tools.ietf.org/rfcdiff?url1=3DRFC6006&url2=3Ddraft-=
ietf-pce-rfc6006bis-00>
[cid:image001.png@01D2A7FA.3C6C9FA0]


-        BANDWIDTH object is for the full P2MP tree i.e. for all destinatio=
ns, we do not need different bandwidth for each destination/RRO.

-        The re-optimization bandwidth needs to be included only with the R=
RO; this is same as RFC5440

So the changes in the RBNF were done to fix it.

---

I see you have added some text to 3.5. This also seems to be just
explanation and is probably OK.

---

The fix in 3.12 looks good, but was not flagged to the WG.

I will upload a new version as well.

Thanks!
Dhruv

From: Pce [mailto:pce-bounces@ietf.org] On Behalf Of Jonathan Hardwick
Sent: 10 March 2017 13:55
To: pce@ietf.org<mailto:pce@ietf.org>
Subject: [Pce] Working group last call for draft-ietf-pce-rfc6006bis-00

Dear PCE working group,

This email starts a working group last call for draft-ietf-pce-rfc6006bis-0=
0.

https://datatracker.ietf.org/doc/draft-ietf-pce-rfc6006bis/

Please read the document and reply to the PCE mailing list whether you beli=
eve this document is ready to be published, or not (including any comments =
on why not).  The last call will end on Monday 20 March.

Best regards
Jon, JP and Julien



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<body lang=3D"EN-IN" link=3D"#0563C1" vlink=3D"#954F72">
<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">Hi WG, <o:p></o:p></sp=
an></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">Adrian, Jon and I had =
a quick chat (the benefit of getting comments during the IETF week). &nbsp;=
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D">See inline for details=
&#8230; <o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"color:#1F497D"><o:p>&nbsp;</o:p></spa=
n></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" style=3D"mso-fareast-languag=
e:EN-IN">From:</span></b><span lang=3D"EN-US" style=3D"mso-fareast-language=
:EN-IN"> Pce [mailto:pce-bounces@ietf.org]
<b>On Behalf Of </b>Adrian Farrel<br>
<b>Sent:</b> 28 March 2017 17:18<br>
<b>To:</b> 'Jonathan Hardwick' &lt;Jonathan.Hardwick@metaswitch.com&gt;; pc=
e@ietf.org<br>
<b>Subject:</b> Re: [Pce] Working group last call for draft-ietf-pce-rfc600=
6bis-00<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-GB" style=3D"color:#1F497D">Hi Jon,=
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D"><o:p>&n=
bsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">I see t=
hat WG last call completed in silence. Possibly a function of<o:p></o:p></s=
pan></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">people =
preparing for IETF-98. Maybe just means that everyone thinks
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">it is o=
bvious to update the RFC and move on.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D"><o:p>&n=
bsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">Anyway,=
 since I'm sitting in a WG meeting where the discussion is a<o:p></o:p></sp=
an></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">little =
too esoteric even for me, here is a quick (but late) review.<o:p></o:p></sp=
an></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D"><o:p>&n=
bsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">Cheers,=
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">Adrian<=
o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D"><o:p>&n=
bsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">=3D=3D=
=3D<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D"><o:p>&n=
bsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">Unfortu=
nate effect of a bis is that the author count has gone OTT.<o:p></o:p></spa=
n></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D"><o:p>&n=
bsp;</o:p></span></p>
<p class=3D"MsoNormal"><b><i><span lang=3D"EN-GB" style=3D"color:#1F497D">[=
Dhruv] Yes, I think this can be added in the shepherd report and hopefully =
that should be fine.
</span></i></b><span lang=3D"EN-GB" style=3D"color:#1F497D"><o:p></o:p></sp=
an></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">---<o:p=
></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D"><o:p>&n=
bsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">A bit o=
dd to wipe the Acknowledgements of the people who contributed to<o:p></o:p>=
</span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">RFC 600=
6.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D"><o:p>&n=
bsp;</o:p></span></p>
<p class=3D"MsoNormal"><b><i><span lang=3D"EN-GB" style=3D"color:#1F497D">[=
Dhruv] Ack</span></i></b><span lang=3D"EN-GB" style=3D"color:#1F497D"><o:p>=
</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">---<o:p=
></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D"><o:p>&n=
bsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">Why has=
 Zafar disappeared from the Authors' Addresses (but remains on<o:p></o:p></=
span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">the fro=
nt page)?<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D"><o:p>&n=
bsp;</o:p></span></p>
<p class=3D"MsoNormal"><b><i><span lang=3D"EN-GB" style=3D"color:#1F497D">[=
Dhruv] Oops, my mistake. Fixed.
</span></i></b><span lang=3D"EN-GB" style=3D"color:#1F497D"><o:p></o:p></sp=
an></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">---<o:p=
></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D"><o:p>&n=
bsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">Good jo=
b picking up the five errata that are on file.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">I was a=
 little surprised to see some additional changes that have not<o:p></o:p></=
span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">been fl=
agged to the WG nor noted anywhere in the document (e.g., in a<o:p></o:p></=
span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">changes=
 section such as Appendix A).<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D"><o:p>&n=
bsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">---<o:p=
></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D"><o:p>&n=
bsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">I see y=
ou added some text to 3.4. I see that this text is to explain<o:p></o:p></s=
pan></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">the RBN=
F that follows, so that is probably OK.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D"><o:p>&n=
bsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">---<o:p=
></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D"><o:p>&n=
bsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">I must =
have missed the discussion of Errata Report 4867. Sorry about<o:p></o:p></s=
pan></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">that.<o=
:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D"><o:p>&n=
bsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">There a=
re three issues, I think<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">1. Tryi=
ng to pack all RBNF into the spec as though the RBNF was the<o:p></o:p></sp=
an></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">&nbsp;&=
nbsp; normative definition of the message format. It isn't and was never<o:=
p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">&nbsp;&=
nbsp; intended to be.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">&nbsp;&=
nbsp; Doing this gets infinitely complicated as more objects are added.<o:p=
></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">&nbsp;&=
nbsp; Doesn't mean what you have done is wrong, wrt svec-list, just not<o:p=
></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">&nbsp;&=
nbsp; necessary.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">2. Remo=
val of &lt;BANDWIDTH&gt; from &lt;RRO-List&gt; is wrong, I think.<o:p></o:p=
></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">&nbsp;&=
nbsp; As I see it:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">&nbsp;&=
nbsp;&nbsp;&nbsp; You can apply &lt;BANDWIDTH&gt; to the whole &lt;RRO-List=
&gt; by placing it<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">&nbsp;&=
nbsp;&nbsp;&nbsp; after the &lt;RRO-List&gt;.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">&nbsp;&=
nbsp;&nbsp;&nbsp; If you want one &lt;RRO&gt; in an &lt;RRO-List&gt; to hav=
e a different<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">&nbsp;&=
nbsp;&nbsp;&nbsp; &lt;BANDWIDTH&gt; you can include a separate &lt;BANDWIDT=
H&gt; after the<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">&nbsp;&=
nbsp;&nbsp;&nbsp; &lt;RRO&gt;.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">&nbsp;&=
nbsp; I think you have *changed* the specification so that the way this<o:p=
></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">&nbsp;&=
nbsp; function is achieved is to pull the &lt;RRO&gt; that has a different<=
o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">&nbsp;&=
nbsp; &lt;BANDWIDTH&gt; out into a different &lt;RRO-List&gt;.<o:p></o:p></=
span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">&nbsp;&=
nbsp; That's functional and can be changed if that is what people want<o:p>=
</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">&nbsp;&=
nbsp; and have discussed, but doing it with an Errata is a mistake because<=
o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">&nbsp;&=
nbsp; it was not an error in the document.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">3. You =
also see to think that &lt;BANDWIDTH&gt; cannot be applied to the<o:p></o:p=
></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">&nbsp;&=
nbsp; &lt;END-POINTS&gt; unless an &lt;RRO-LIST&gt; is present. I think tha=
t is<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">&nbsp;&=
nbsp; wrong, too.&nbsp; If it makes sense to have &lt;END-POINTS&gt; withou=
t an<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">&nbsp;&=
nbsp; an &lt;RRO-List&gt; why would you not allow each instance of &lt;END-=
POINTS&gt;<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">&nbsp;&=
nbsp; to have its own &lt;BANDWIDTH&gt;? This also seems to be a change of<=
o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">&nbsp;&=
nbsp; substance rather than an error in the document. Again, the WG is<o:p>=
</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">&nbsp;&=
nbsp; free to make this change, but surely not without discussion.<o:p></o:=
p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D"><o:p>&n=
bsp;</o:p></span></p>
<p class=3D"MsoNormal"><b><i><span lang=3D"EN-GB" style=3D"color:#1F497D">[=
Dhruv] <a href=3D"https://tools.ietf.org/rfcdiff?url1=3DRFC6006&amp;url2=3D=
draft-ietf-pce-rfc6006bis-00">
https://tools.ietf.org//rfcdiff?url1=3DRFC6006&amp;url2=3Ddraft-ietf-pce-rf=
c6006bis-00</a><o:p></o:p></span></i></b></p>
<p class=3D"MsoNormal"><span style=3D"mso-fareast-language:EN-IN"><img bord=
er=3D"0" width=3D"971" height=3D"462" id=3D"Picture_x0020_1" src=3D"cid:ima=
ge001.png@01D2A7FA.3C6C9FA0"></span><span lang=3D"EN-GB" style=3D"color:#1F=
497D"><o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D"><o:p>&n=
bsp;</o:p></span></p>
<p class=3D"MsoListParagraph" style=3D"margin-left:40.8pt;text-indent:-18.0=
pt;mso-list:l1 level1 lfo2">
<![if !supportLists]><span lang=3D"EN-GB" style=3D"color:#1F497D"><span sty=
le=3D"mso-list:Ignore">-<span style=3D"font:7.0pt &quot;Times New Roman&quo=
t;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span></span><![endif]><b><i><span lang=3D"EN-GB" style=3D"color:#1=
F497D">BANDWIDTH object is for the full P2MP tree i.e. for all destinations=
, we do not need different bandwidth for each destination/RRO.
<o:p></o:p></span></i></b></p>
<p class=3D"MsoListParagraph" style=3D"margin-left:40.8pt;text-indent:-18.0=
pt;mso-list:l1 level1 lfo2">
<![if !supportLists]><span lang=3D"EN-GB" style=3D"color:#1F497D"><span sty=
le=3D"mso-list:Ignore">-<span style=3D"font:7.0pt &quot;Times New Roman&quo=
t;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span></span><![endif]><b><i><span lang=3D"EN-GB" style=3D"color:#1=
F497D">The re-optimization bandwidth needs to be included only with the RRO=
; this is same as RFC5440
<o:p></o:p></span></i></b></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D"><o:p>&n=
bsp;</o:p></span></p>
<p class=3D"MsoNormal"><b><i><span lang=3D"EN-GB" style=3D"color:#1F497D">S=
o the changes in the RBNF were done to fix it.
<o:p></o:p></span></i></b></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">&nbsp;<=
o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">---<o:p=
></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D"><o:p>&n=
bsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">I see y=
ou have added some text to 3.5. This also seems to be just<o:p></o:p></span=
></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">explana=
tion and is probably OK.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D"><o:p>&n=
bsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">---<o:p=
></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D"><o:p>&n=
bsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D">The fix=
 in 3.12 looks good, but was not flagged to the WG.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" style=3D"color:#1F497D"><o:p>&n=
bsp;</o:p></span></p>
<p class=3D"MsoNormal"><b><i><span lang=3D"EN-GB" style=3D"color:#1F497D">I=
 will upload a new version as well.
<o:p></o:p></span></i></b></p>
<p class=3D"MsoNormal"><b><i><span lang=3D"EN-GB" style=3D"color:#1F497D"><=
o:p>&nbsp;</o:p></span></i></b></p>
<p class=3D"MsoNormal"><b><i><span lang=3D"EN-GB" style=3D"color:#1F497D">T=
hanks!<o:p></o:p></span></i></b></p>
<p class=3D"MsoNormal"><b><i><span lang=3D"EN-GB" style=3D"color:#1F497D">D=
hruv<o:p></o:p></span></i></b></p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB" 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 #B5C4DF 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal"><b><span lang=3D"EN-US" style=3D"font-size:10.0pt;fo=
nt-family:&quot;Tahoma&quot;,sans-serif;mso-fareast-language:EN-GB">From:</=
span></b><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-family:&quot;T=
ahoma&quot;,sans-serif;mso-fareast-language:EN-GB"> Pce [<a href=3D"mailto:=
pce-bounces@ietf.org">mailto:pce-bounces@ietf.org</a>]
<b>On Behalf Of </b>Jonathan Hardwick<br>
<b>Sent:</b> 10 March 2017 13:55<br>
<b>To:</b> <a href=3D"mailto:pce@ietf.org">pce@ietf.org</a><br>
<b>Subject:</b> [Pce] Working group last call for draft-ietf-pce-rfc6006bis=
-00<o:p></o:p></span></p>
</div>
</div>
<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">Dear PCE working group,<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 working gro=
up last call for draft-ietf-pce-rfc6006bis-00.<o:p></o:p></span></p>
<p class=3D"MsoPlainText"><span lang=3D"EN-GB"><a href=3D"https://datatrack=
er.ietf.org/doc/draft-ietf-pce-rfc6006bis/">https://datatracker.ietf.org/do=
c/draft-ietf-pce-rfc6006bis/</a><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 read the document and re=
ply to the PCE mailing list whether you believe this document is ready to b=
e published, or not (including any comments on why not).&nbsp; The last cal=
l will end on
<b>Monday 20 March</b>.<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">Best regards<o:p></o:p></span><=
/p>
<p class=3D"MsoNormal"><span lang=3D"EN-GB">Jon, JP and Julien<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"><o:p>&nbsp;</o:p></span></p>
</div>
</div>
</div>
</body>
</html>

--_000_23CE718903A838468A8B325B80962F9B8CABE6CDblreml501mbb_--

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Subject: [Pce] I-D Action: draft-ietf-pce-rfc6006bis-01.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 Path Computation Element of the IETF.

        Title           : Extensions to the Path Computation Element Communication Protocol (PCEP) for Point-to-Multipoint Traffic Engineering Label Switched Paths
        Authors         : Quintin Zhao
                          Dhruv Dhody
                          Ramanjaneya Reddy Palleti
                          Daniel King
                          Fabien Verhaeghe
                          Tomonori Takeda
                          Zafar Ali
                          Julien Meuric
	Filename        : draft-ietf-pce-rfc6006bis-01.txt
	Pages           : 41
	Date            : 2017-03-28

Abstract:
   Point-to-point Multiprotocol Label Switching (MPLS) and Generalized
   MPLS (GMPLS) Traffic Engineering Label Switched Paths (TE LSPs) may
   be established using signaling techniques, but their paths may first
   need to be determined.  The Path Computation Element (PCE) has been
   identified as an appropriate technology for the determination of the
   paths of point-to-multipoint (P2MP) TE LSPs.

   This document describes extensions to the PCE communication Protocol
   (PCEP) to handle requests and responses for the computation of paths
   for P2MP TE LSPs.

   This document obsoletes RFC 6006.


The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-pce-rfc6006bis/

There are also htmlized versions available at:
https://tools.ietf.org/html/draft-ietf-pce-rfc6006bis-01
https://datatracker.ietf.org/doc/html/draft-ietf-pce-rfc6006bis-01

A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-pce-rfc6006bis-01


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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Archived-At: <https://mailarchive.ietf.org/arch/msg/pce/RJXpd_2B9BpHzF1j-as-h03UM-E>
Subject: Re: [Pce] Working group last call for draft-ietf-pce-rfc6006bis-00
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Just an ack to Dhruv's email
 
A
 
--
Support an author and your imagination.
Tales from the Wood - Eighteen new fairy tales.
More Tales from the Wood - Eighteen MORE new fairy tales.
https://www.feedaread.com/profiles/8604/
http://www.amazon.co.uk/Tales-Wood-Adrian-Farrel/dp/1786100924
Or buy from me direct.
 
 
 
From: Dhruv Dhody [mailto:dhruv.dhody@huawei.com] 
Sent: 29 March 2017 01:55
To: adrian@olddog.co.uk; 'Jonathan Hardwick'; pce@ietf.org
Cc: Dhruv Dhody
Subject: RE: [Pce] Working group last call for draft-ietf-pce-rfc6006bis-00
 
Hi WG, 
 
Adrian, Jon and I had a quick chat (the benefit of getting comments during the
IETF week).  
See inline for details. 
 
From: Pce [mailto:pce-bounces@ietf.org] On Behalf Of Adrian Farrel
Sent: 28 March 2017 17:18
To: 'Jonathan Hardwick' <Jonathan.Hardwick@metaswitch.com>; pce@ietf.org
Subject: Re: [Pce] Working group last call for draft-ietf-pce-rfc6006bis-00
 
Hi Jon,
 
I see that WG last call completed in silence. Possibly a function of
people preparing for IETF-98. Maybe just means that everyone thinks 
it is obvious to update the RFC and move on.
 
Anyway, since I'm sitting in a WG meeting where the discussion is a
little too esoteric even for me, here is a quick (but late) review.
 
Cheers,
Adrian
 
===
 
Unfortunate effect of a bis is that the author count has gone OTT.
 
[Dhruv] Yes, I think this can be added in the shepherd report and hopefully that
should be fine. 
---
 
A bit odd to wipe the Acknowledgements of the people who contributed to
RFC 6006.
 
[Dhruv] Ack
---
 
Why has Zafar disappeared from the Authors' Addresses (but remains on
the front page)?
 
[Dhruv] Oops, my mistake. Fixed. 
---
 
Good job picking up the five errata that are on file.
I was a little surprised to see some additional changes that have not
been flagged to the WG nor noted anywhere in the document (e.g., in a
changes section such as Appendix A).
 
---
 
I see you added some text to 3.4. I see that this text is to explain
the RBNF that follows, so that is probably OK.
 
---
 
I must have missed the discussion of Errata Report 4867. Sorry about
that.
 
There are three issues, I think
1. Trying to pack all RBNF into the spec as though the RBNF was the
   normative definition of the message format. It isn't and was never
   intended to be.
   Doing this gets infinitely complicated as more objects are added.
   Doesn't mean what you have done is wrong, wrt svec-list, just not
   necessary.
2. Removal of <BANDWIDTH> from <RRO-List> is wrong, I think.
   As I see it:
     You can apply <BANDWIDTH> to the whole <RRO-List> by placing it
     after the <RRO-List>.
     If you want one <RRO> in an <RRO-List> to have a different
     <BANDWIDTH> you can include a separate <BANDWIDTH> after the
     <RRO>.
   I think you have *changed* the specification so that the way this
   function is achieved is to pull the <RRO> that has a different
   <BANDWIDTH> out into a different <RRO-List>.
   That's functional and can be changed if that is what people want
   and have discussed, but doing it with an Errata is a mistake because
   it was not an error in the document.
3. You also see to think that <BANDWIDTH> cannot be applied to the
   <END-POINTS> unless an <RRO-LIST> is present. I think that is
   wrong, too.  If it makes sense to have <END-POINTS> without an
   an <RRO-List> why would you not allow each instance of <END-POINTS>
   to have its own <BANDWIDTH>? This also seems to be a change of
   substance rather than an error in the document. Again, the WG is
   free to make this change, but surely not without discussion.
 
[Dhruv] https://tools.ietf.org//rfcdiff?url1=RFC6006
<https://tools.ietf.org/rfcdiff?url1=RFC6006&url2=draft-ietf-pce-rfc6006bis-00>
&url2=draft-ietf-pce-rfc6006bis-00

 
-        BANDWIDTH object is for the full P2MP tree i.e. for all destinations,
we do not need different bandwidth for each destination/RRO. 
-        The re-optimization bandwidth needs to be included only with the RRO;
this is same as RFC5440 
 
So the changes in the RBNF were done to fix it. 
 
---
 
I see you have added some text to 3.5. This also seems to be just
explanation and is probably OK.
 
---
 
The fix in 3.12 looks good, but was not flagged to the WG.
 
I will upload a new version as well. 
 
Thanks!
Dhruv
 
From: Pce [mailto:pce-bounces@ietf.org] On Behalf Of Jonathan Hardwick
Sent: 10 March 2017 13:55
To: pce@ietf.org
Subject: [Pce] Working group last call for draft-ietf-pce-rfc6006bis-00
 
Dear PCE working group,
 
This email starts a working group last call for draft-ietf-pce-rfc6006bis-00.
https://datatracker.ietf.org/doc/draft-ietf-pce-rfc6006bis/
 
Please read the document and reply to the PCE mailing list whether you believe
this document is ready to be published, or not (including any comments on why
not).  The last call will end on Monday 20 March.
 
Best regards
Jon, JP and Julien
 
 

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<o:shapedefaults v:ext=3D"edit" spidmax=3D"1026" />
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<o:shapelayout v:ext=3D"edit">
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</o:shapelayout></xml><![endif]--></head><body lang=3DEN-GB =
link=3D"#0563C1" vlink=3D"#954F72" style=3D'tab-interval:36.0pt'><div =
class=3DWordSection1><p class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New Roman";color:#1F497D'>Just an ack to Dhruv's =
email<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'>A<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-fareast-font-family:"Times =
New Roman";mso-hansi-font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D;mso-fareast-language:EN-GB;mso-no-proof:yes'>--<o:p>=
</o:p></span></p><p class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-fareast-font-family:"Times =
New Roman";mso-hansi-font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D;mso-fareast-language:EN-GB;mso-no-proof:yes'>Support=
 an author and your imagination.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-fareast-font-family:"Times =
New Roman";mso-hansi-font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D;mso-fareast-language:EN-GB;mso-no-proof:yes'>Tales =
from the Wood - Eighteen new fairy tales.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-fareast-font-family:"Times =
New Roman";mso-hansi-font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D;mso-fareast-language:EN-GB;mso-no-proof:yes'>More =
Tales from the Wood - Eighteen MORE new fairy =
tales.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-fareast-font-family:"Times =
New Roman";mso-hansi-font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D;mso-fareast-language:EN-GB;mso-no-proof:yes'>https:/=
/www.feedaread.com/profiles/8604/<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-fareast-font-family:"Times =
New Roman";mso-hansi-font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D;mso-fareast-language:EN-GB;mso-no-proof:yes'>http://=
www.amazon.co.uk/Tales-Wood-Adrian-Farrel/dp/1786100924<o:p></o:p></span>=
</p><p class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-fareast-font-family:"Times =
New Roman";mso-hansi-font-family:Calibri;mso-bidi-font-family:"Times New =
Roman";color:#1F497D;mso-fareast-language:EN-GB;mso-no-proof:yes'>Or buy =
from me direct.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-=
bidi-font-family:"Times New =
Roman";color:#1F497D'><o:p>&nbsp;</o:p></span></p><div =
style=3D'border:none;border-right:solid blue 1.5pt;padding:0cm 0cm 0cm =
4.0pt'><div><div style=3D'border:none;border-top:solid #B5C4DF =
1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=3DMsoNormal><b><span =
lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-fareast-f=
ont-family:"Times New =
Roman";mso-ansi-language:EN-US;mso-fareast-language:EN-GB'>From:</span></=
b><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-fareast-f=
ont-family:"Times New =
Roman";mso-ansi-language:EN-US;mso-fareast-language:EN-GB'> Dhruv Dhody =
[mailto:dhruv.dhody@huawei.com] <br><b>Sent:</b> 29 March 2017 =
01:55<br><b>To:</b> adrian@olddog.co.uk; 'Jonathan Hardwick'; =
pce@ietf.org<br><b>Cc:</b> Dhruv Dhody<br><b>Subject:</b> RE: [Pce] =
Working group last call for =
draft-ietf-pce-rfc6006bis-00<o:p></o:p></span></p></div></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal><span =
lang=3DEN-IN style=3D'color:#1F497D;mso-ansi-language:EN-IN'>Hi WG, =
<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-IN =
style=3D'color:#1F497D;mso-ansi-language:EN-IN'><o:p>&nbsp;</o:p></span><=
/p><p class=3DMsoNormal><span lang=3DEN-IN =
style=3D'color:#1F497D;mso-ansi-language:EN-IN'>Adrian, Jon and I had a =
quick chat (the benefit of getting comments during the IETF week). =
&nbsp;<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-IN =
style=3D'color:#1F497D;mso-ansi-language:EN-IN'>See inline for =
details&#8230; <o:p></o:p></span></p><p class=3DMsoNormal><span =
lang=3DEN-IN =
style=3D'color:#1F497D;mso-ansi-language:EN-IN'><o:p>&nbsp;</o:p></span><=
/p><div style=3D'border:none;border-right: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 =
style=3D'mso-ansi-language:EN-US;mso-fareast-language:EN-IN'>From:</span>=
</b><span lang=3DEN-US =
style=3D'mso-ansi-language:EN-US;mso-fareast-language:EN-IN'> Pce =
[mailto:pce-bounces@ietf.org] <b>On Behalf Of </b>Adrian =
Farrel<br><b>Sent:</b> 28 March 2017 17:18<br><b>To:</b> 'Jonathan =
Hardwick' &lt;Jonathan.Hardwick@metaswitch.com&gt;; =
pce@ietf.org<br><b>Subject:</b> Re: [Pce] Working group last call for =
draft-ietf-pce-rfc6006bis-00<o:p></o:p></span></p></div></div><p =
class=3DMsoNormal><span lang=3DEN-IN =
style=3D'mso-ansi-language:EN-IN'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>Hi =
Jon,<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>I see that WG last call =
completed in silence. Possibly a function of<o:p></o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>people preparing for =
IETF-98. Maybe just means that everyone thinks <o:p></o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>it is obvious to update =
the RFC and move on.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>Anyway, since I'm =
sitting in a WG meeting where the discussion is =
a<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>little too esoteric even for me, here is a quick =
(but late) review.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'>Cheers,<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'>Adrian<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'>=3D=3D=3D<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>Unfortunate effect of a =
bis is that the author count has gone OTT.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><b><i><span style=3D'color:#1F497D'>[Dhruv] Yes, I =
think this can be added in the shepherd report and hopefully that should =
be fine. </span></i></b><span =
style=3D'color:#1F497D'><o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>---<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>A bit odd to wipe the =
Acknowledgements of the people who contributed =
to<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>RFC 6006.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><b><i><span style=3D'color:#1F497D'>[Dhruv] =
Ack</span></i></b><span style=3D'color:#1F497D'><o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'>---<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>Why has Zafar =
disappeared from the Authors' Addresses (but remains =
on<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>the front page)?<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><b><i><span style=3D'color:#1F497D'>[Dhruv] Oops, my =
mistake. Fixed. </span></i></b><span =
style=3D'color:#1F497D'><o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>---<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>Good job picking up the =
five errata that are on file.<o:p></o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>I was a little surprised =
to see some additional changes that have not<o:p></o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>been flagged to the WG =
nor noted anywhere in the document (e.g., in a<o:p></o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>changes section such as =
Appendix A).<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'>---<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>I see you added some =
text to 3.4. I see that this text is to explain<o:p></o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>the RBNF that follows, =
so that is probably OK.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'>---<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>I must have missed the =
discussion of Errata Report 4867. Sorry about<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'>that.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>There are three issues, =
I think<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>1. Trying to pack all RBNF into the spec as =
though the RBNF was the<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>&nbsp;&nbsp; normative definition of the message =
format. It isn't and was never<o:p></o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>&nbsp;&nbsp; intended to =
be.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>&nbsp;&nbsp; Doing this gets infinitely =
complicated as more objects are added.<o:p></o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>&nbsp;&nbsp; Doesn't =
mean what you have done is wrong, wrt svec-list, just =
not<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>&nbsp;&nbsp; necessary.<o:p></o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>2. Removal of =
&lt;BANDWIDTH&gt; from &lt;RRO-List&gt; is wrong, I =
think.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>&nbsp;&nbsp; As I see =
it:<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>&nbsp;&nbsp;&nbsp;&nbsp; You can apply =
&lt;BANDWIDTH&gt; to the whole &lt;RRO-List&gt; by placing =
it<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>&nbsp;&nbsp;&nbsp;&nbsp; after the =
&lt;RRO-List&gt;.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>&nbsp;&nbsp;&nbsp;&nbsp; If you want one =
&lt;RRO&gt; in an &lt;RRO-List&gt; to have a =
different<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>&nbsp;&nbsp;&nbsp;&nbsp; &lt;BANDWIDTH&gt; you =
can include a separate &lt;BANDWIDTH&gt; after =
the<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>&nbsp;&nbsp;&nbsp;&nbsp; =
&lt;RRO&gt;.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>&nbsp;&nbsp; I think you have *changed* the =
specification so that the way this<o:p></o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>&nbsp;&nbsp; function is =
achieved is to pull the &lt;RRO&gt; that has a =
different<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>&nbsp;&nbsp; &lt;BANDWIDTH&gt; out into a =
different &lt;RRO-List&gt;.<o:p></o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>&nbsp;&nbsp; That's =
functional and can be changed if that is what people =
want<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>&nbsp;&nbsp; and have discussed, but doing it =
with an Errata is a mistake because<o:p></o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>&nbsp;&nbsp; it was not =
an error in the document.<o:p></o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>3. You also see to think =
that &lt;BANDWIDTH&gt; cannot be applied to the<o:p></o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>&nbsp;&nbsp; =
&lt;END-POINTS&gt; unless an &lt;RRO-LIST&gt; is present. I think that =
is<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>&nbsp;&nbsp; wrong, too.&nbsp; If it makes sense =
to have &lt;END-POINTS&gt; without an<o:p></o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>&nbsp;&nbsp; an =
&lt;RRO-List&gt; why would you not allow each instance of =
&lt;END-POINTS&gt;<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>&nbsp;&nbsp; to have its own &lt;BANDWIDTH&gt;? =
This also seems to be a change of<o:p></o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>&nbsp;&nbsp; substance =
rather than an error in the document. Again, the WG =
is<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>&nbsp;&nbsp; free to make this change, but =
surely not without discussion.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><b><i><span style=3D'color:#1F497D'>[Dhruv] <a =
href=3D"https://tools.ietf.org/rfcdiff?url1=3DRFC6006&amp;url2=3Ddraft-ie=
tf-pce-rfc6006bis-00">https://tools.ietf.org//rfcdiff?url1=3DRFC6006&amp;=
url2=3Ddraft-ietf-pce-rfc6006bis-00</a><o:p></o:p></span></i></b></p><p =
class=3DMsoNormal><span lang=3DEN-IN =
style=3D'mso-ansi-language:EN-IN;mso-fareast-language:EN-IN'><img =
border=3D0 width=3D971 height=3D462 id=3D"Picture_x0020_1" =
src=3D"cid:image001.png@01D2A857.21318400"></span><span =
style=3D'color:#1F497D'><o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoListParagraph =
style=3D'margin-left:40.8pt;text-indent:-18.0pt'><span =
style=3D'color:#1F497D'>-</span><span =
style=3D'font-size:7.0pt;font-family:"Times New =
Roman","serif";color:#1F497D'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span><b><i><span style=3D'color:#1F497D'>BANDWIDTH object is for the =
full P2MP tree i.e. for all destinations, we do not need different =
bandwidth for each destination/RRO. <o:p></o:p></span></i></b></p><p =
class=3DMsoListParagraph =
style=3D'margin-left:40.8pt;text-indent:-18.0pt'><span =
style=3D'color:#1F497D'>-</span><span =
style=3D'font-size:7.0pt;font-family:"Times New =
Roman","serif";color:#1F497D'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; =
</span><b><i><span style=3D'color:#1F497D'>The re-optimization bandwidth =
needs to be included only with the RRO; this is same as RFC5440 =
<o:p></o:p></span></i></b></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><b><i><span style=3D'color:#1F497D'>So the changes in =
the RBNF were done to fix it. <o:p></o:p></span></i></b></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'>&nbsp;<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'>---<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>I see you have added =
some text to 3.5. This also seems to be just<o:p></o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>explanation and is =
probably OK.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'>---<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span style=3D'color:#1F497D'>The fix in 3.12 looks =
good, but was not flagged to the WG.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><b><i><span style=3D'color:#1F497D'>I will upload a =
new version as well. <o:p></o:p></span></i></b></p><p =
class=3DMsoNormal><b><i><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></i></b></p><p =
class=3DMsoNormal><b><i><span =
style=3D'color:#1F497D'>Thanks!<o:p></o:p></span></i></b></p><p =
class=3DMsoNormal><b><i><span =
style=3D'color:#1F497D'>Dhruv<o:p></o:p></span></i></b></p><p =
class=3DMsoNormal><span =
style=3D'color:#1F497D'><o:p>&nbsp;</o:p></span></p><div =
style=3D'border:none;border-right:solid blue 1.5pt;padding:0cm 0cm 0cm =
4.0pt'><div><div style=3D'border:none;border-top:solid #B5C4DF =
1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=3DMsoNormal><b><span =
lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-ansi-lang=
uage:EN-US;mso-fareast-language:EN-GB'>From:</span></b><span =
lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-ansi-lang=
uage:EN-US;mso-fareast-language:EN-GB'> Pce [<a =
href=3D"mailto:pce-bounces@ietf.org">mailto:pce-bounces@ietf.org</a>] =
<b>On Behalf Of </b>Jonathan Hardwick<br><b>Sent:</b> 10 March 2017 =
13:55<br><b>To:</b> <a =
href=3D"mailto:pce@ietf.org">pce@ietf.org</a><br><b>Subject:</b> [Pce] =
Working group last call for =
draft-ietf-pce-rfc6006bis-00<o:p></o:p></span></p></div></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>Dear PCE =
working group,<o:p></o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>This email =
starts a working group last call for =
draft-ietf-pce-rfc6006bis-00.<o:p></o:p></p><p class=3DMsoPlainText><a =
href=3D"https://datatracker.ietf.org/doc/draft-ietf-pce-rfc6006bis/">http=
s://datatracker.ietf.org/doc/draft-ietf-pce-rfc6006bis/</a><o:p></o:p></p=
><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal>Please =
read the document and reply to the PCE mailing list whether you believe =
this document is ready to be published, or not (including any comments =
on why not).&nbsp; The last call will end on <b>Monday 20 =
March</b>.<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal>Best regards<o:p></o:p></p><p class=3DMsoNormal>Jon, =
JP and Julien<o:p></o:p></p><p class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div></div></div></div></body></h=
tml>
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From: Jonathan Hardwick <Jonathan.Hardwick@metaswitch.com>
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Subject: [Pce] PCE WG meeting minutes available
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The draft minutes for the PCE meeting at IETF 98 are now available.  Thanks=
 to all our scribes!  Please let us know if you have any comments or correc=
tions.
https://www.ietf.org/proceedings/98/minutes/minutes-98-pce-01

Best regards
Jon and Julien

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
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=3D=3D=3D=3D
PCE Working Group Meeting
IETF 98 (Chicago, IL)

Working Group Chairs:
     Julien Meuric (julien.meuric@orange.com)
     JP Vasseur (jpv@cisco.com)
     Jonathan Hardwick (jonathan.hardwick@metaswitch.com)

Working Group Secretary:
     Daniel King (daniel@olddog.co.uk)

Responsible AD:
     Deborah Brungard (db3546@att.com)

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
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=3D=3D=3D=3D

Session I

Time:
     March 27, 2017, 15:20-16:50 (3:20pm-4:50pm)

Location:
     Zurich G, Swissotel, Chicago IL, USA

With thanks to all our scribes!

---------------------------------------------------------------------------=
----

1. Introduction
---------------

1.1. Administrivia, Agenda Bashing (chairs, 5 min)

-  The session is being co-chaired by Jon Hardwick and Julien Meuric.
   Unfortunately, JP was unable to travel to the IETF this time.
-  Agenda bashing: no agenda changes.


1.2. WG Status (chairs, 15 min)

Jon Hardwick: Stateful PCE draft is with the IESG and pending an update; th=
e
              authors have promised an update by 1 April (no joke).
Jon Hardwick: LSP initiation draft is with the IESG and is pending routing
              directorate review before IETF last call can be issued.
Jon Hardwick: Inter-area/AS applicability draft needs an update before we c=
an
              submit it to the IESG. Authors are working on it.
Jon Hardwick: PCEPS draft is now being shepherded by Cyril Margaria; he has
              posted some comments and needs to see a new revision before w=
e
              can submit to othe IESG.
Jon Hardwick: WSON-RWA draft has been shepherded by Daniele Ceccarelli
              (thanks Daniele!) and is now blocked on advancing by the base
              PCEP-GMPLS draft.
Jon Hardwick: Base PCEP-GMPLS draft is pending a shepherd report from Julie=
n.
Jeff Tantsura: Segment Routing draft will be updated this week.
Jon Hardwick: IANA early allocation for this and LSP-setup type drafts expi=
res
              in August - we must publish before then.
Dhruv Dhody: Stateful P2MP draft can be progressed after the 6006bis draft.
Dhruv Dhody: We are discussing with association-group authors, to make sure=
 it
             could be prioritized, as multiple documents depend on it.
Young Lee: The Stateful PCE GMPLS draft will be revived; Xian has moved on =
but
           she will hand the pen to someone else.


2. Work in Progress
-------------------

2.1. PCEP Extension for LSP Diversity (Stephane Litkowski, 5 min)
https://datatracker.ietf.org/doc/draft-ietf-pce-association-diversity/

No questions.


2.2. Association-aware Computation (Stephane Litkowski, 10 min)
https://datatracker.ietf.org/doc/draft-litkowski-pce-state-sync/

Andrew Dolganow: Why assume that the last state received is the final state=
?
                 Message routes through the network may be different.  If
                 sessions are flaping then it may get out of sync.
Stephane Litkowski: We had an idea to add a timestamp.
Robin Li: In multiple failure scenarios, this may get out of sync. If the
          session between PCC and PCE is broken or if PCC is restarted. The
          impact on other protocols like netconf, BGP needs to be analyzed.
Stephane Litkowski: You can not solve all the problems.
Julien Meuric: Who has read the document?  [Not many except authors]
Julien Meuric: Please read document and respond to the list.


2.3. PCE's Control Request (Chaitanya Yadlapalli, 5 min)
https://datatracker.ietf.org/doc/draft-raghu-pce-lsp-control-request/

Julien Meuric: Please do not suggest a specific bit number. This is the rol=
e of
               IANA. Just use TBD in your draft.
Andrew Dolganow: Can you clarify the need for this, before you ask for a bi=
t.
Chaitanya Yadlapalli: We will try to clarify the use case in the I-D.
Julien Meuric: Please update the document and reflect changes to the list.
Julien Meuric: Who has read the document?  [About 12-15]
               Who, of those that read the document, think this is a useful
               feature? [About the same]


2.4. Experimental Codepoints (Dhruv Dhody, 5 min)
https://datatracker.ietf.org/doc/draft-dhody-pce-pcep-exp-codepoints/

Andrew Dolganow: Good work. There will be expected behavior, can you descri=
be
                 how to interpret the experimental bits?
Dhruv Dhody: Actually, I think this is already discussed in the PCEP RFC
             [RFC5440]
Andrew Dolganow: Can you just clarify this.
Dhruv Dhody: Yup
Jon Hardwick: Poll, who read the I-D? [8]
              Who thinks we need this? [same number]


2.5. Stateful H-PCE and ACTN (Dhurv Dhody, 10 min)
https://datatracker.ietf.org/doc/draft-dhody-pce-applicability-actn/
https://datatracker.ietf.org/doc/draft-dhodylee-pce-stateful-hpce/

Michael Scharf: [Slide 9] You extend PCEP (on MMI and MPI interface) for th=
e VN
                concept, but it's not clear on the architecture. This is an
                ACTN issue, not directly related to the PCEP WG or PCEP I-D=
.
Dhruv Dhody: We will pick this up in the ACTN architecture I-Ds
Jon Hardwick: Who read the ACTN applicability document [10]
              Who thinks we need this? [About the same]

Jon Hardwick: Who has read the stateful H-PCE document [About 15]
              Who thinks we need this? [About the same, a few less]
Jon Hardwick: We will confirm on the list.


3. New I-Ds
-----------

3.1. PCE-initiated BRPC LSP Setup (Julien Meuric, 10 min)
https://datatracker.ietf.org/doc/draft-dugeon-brpc-stateful/

Fatai Zhang: Interesting I-D. Are you trying to use PCEP to create end-to-e=
nd
             connections across domains, i.e., like RSVP-TE.
Julien Meuric: Yes.
Fatai Zhang: Can we use these PCEP extensions for other applications?
Julien Meuric: Yes, segment routing is a use case.
Fatai Zhang: Could you use PCECC?
Julien Meuric: I think there is some common ground. We should discuss.
Dhruv Dhody: I like the I-D, I like the SL-label to be generic, so that it =
can
             be useful for stateful H-PCE as well, and a PCECC-like approac=
h
             might be better.
Dhruv Dhody: We need to investigate the security aspects of stateful BRPC,
             where PCE relationship is on the peer level, not client-server=
.
Julien Meuric: Agree. Its a -00 version.


3.2. PCEP Extension for Associated Bidirectional LSPs (Rakesh Gandhi, 10 mi=
n)
https://datatracker.ietf.org/doc/draft-barth-pce-association-bidir/

Jon Hardwick: Who thinks this is a good I-D to have? [12]
              Good, we will need to see more dicussion on the list.


3.3. PCEP Extensions for PM Reporting (Rakesh Gandhi, 10 min)
https://datatracker.ietf.org/doc/draft-gandhi-pce-pm/

Andrew Dolganow: Capability is useful, but adding telemetry data to PCEP wi=
ll
                 not scale.  The PCE is responsible for path computation wh=
ich
                 is already compute intensive.  You can't add real-time
                 telemetry without overloading it.
Rakesh Ghandi: Motivation is to use the same channel to get LSP state as we=
ll
               as performance.
Fatai Zhang: Relationship to PCEP-LS is not mentioned in the document.
Jeff Tantsura: Same concerns as Andrew, do you measure at head-end or per n=
ode.
Rakesh Ghandi: This is for head-end PCC, and for the LSPs that PCE cares ab=
out.


4. I-Ds Pending Further Discussion
4.1. Bandwidth Scheduling (Yan Zhuang, 5 min)
https://datatracker.ietf.org/doc/draft-zhuang-pce-stateful-pce-lsp-scheduli=
ng/

Yan Zhuang: The authors have now produced a merged document and are request=
ing
            WG adoption.
Julien Meuric: New version was only uploaded today, so we must give people =
time
               to read and comment before polling for adoption.  Please sen=
d
               comments to the list.


---------------------------------------------------------------------------=
----

End of session 16:50.

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<div class=3D"WordSection1">
<p class=3D"MsoNormal">The draft minutes for the PCE meeting at IETF 98 are=
 now available.&nbsp; Thanks to all our scribes!&nbsp; Please let us know i=
f you have any comments or corrections.<o:p></o:p></p>
<p class=3D"MsoNormal"><a href=3D"https://www.ietf.org/proceedings/98/minut=
es/minutes-98-pce-01">https://www.ietf.org/proceedings/98/minutes/minutes-9=
8-pce-01</a><o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Best regards<o:p></o:p></p>
<p class=3D"MsoNormal">Jon and Julien<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D<o:=
p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">PCE Working Gro=
up Meeting<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">IETF 98 (Chicag=
o, IL)<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas"><o:p>&nbsp;</o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Working Group C=
hairs:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">&nbsp; &nbsp;&n=
bsp;&nbsp;Julien Meuric (julien.meuric@orange.com)<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">&nbsp;&nbsp;&nb=
sp;&nbsp; JP Vasseur (jpv@cisco.com)<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">&nbsp;&nbsp;&nb=
sp;&nbsp; Jonathan Hardwick (jonathan.hardwick@metaswitch.com)<o:p></o:p></=
span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas"><o:p>&nbsp;</o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Working Group S=
ecretary:<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">&nbsp;&nbsp;&nb=
sp;&nbsp; Daniel King (daniel@olddog.co.uk)<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas"><o:p>&nbsp;</o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Responsible AD:=
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">&nbsp;&nbsp;&nb=
sp;&nbsp; Deborah Brungard (db3546@att.com)<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas"><o:p>&nbsp;</o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D<o:=
p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas"><o:p>&nbsp;</o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Session I<o:p><=
/o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas"><o:p>&nbsp;</o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Time:<o:p></o:p=
></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">&nbsp;&nbsp;&nb=
sp;&nbsp; March 27, 2017, 15:20-16:50 (3:20pm-4:50pm)<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas"><o:p>&nbsp;</o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Location:<o:p><=
/o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">&nbsp;&nbsp;&nb=
sp;&nbsp; Zurich G, Swissotel, Chicago IL, USA<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas"><o:p>&nbsp;</o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">With thanks to =
all our scribes!<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas"><o:p>&nbsp;</o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">---------------=
----------------------------------------------------------------<o:p></o:p>=
</span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas"><o:p>&nbsp;</o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">1. Introduction=
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">---------------=
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas"><o:p>&nbsp;</o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">1.1. Administri=
via, Agenda Bashing (chairs, 5 min)<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas"><o:p>&nbsp;</o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">-&nbsp; The ses=
sion is being co-chaired by Jon Hardwick and Julien Meuric.<o:p></o:p></spa=
n></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">&nbsp;&nbsp; Un=
fortunately, JP was unable to travel to the IETF this time.<o:p></o:p></spa=
n></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">-&nbsp; Agenda =
bashing: no agenda changes.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas"><o:p>&nbsp;</o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas"><o:p>&nbsp;</o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">1.2. WG Status =
(chairs, 15 min)<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas"><o:p>&nbsp;</o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Jon Hardwick: S=
tateful PCE draft is with the IESG and pending an update; the<o:p></o:p></s=
pan></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; authors hav=
e promised an update by 1 April (no joke).<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Jon Hardwick: L=
SP initiation draft is with the IESG and is pending routing<o:p></o:p></spa=
n></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; directorate=
 review before IETF last call can be issued.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Jon Hardwick: I=
nter-area/AS applicability draft needs an update before we can<o:p></o:p></=
span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; submit it t=
o the IESG. Authors are working on it.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Jon Hardwick: P=
CEPS draft is now being shepherded by Cyril Margaria; he has<o:p></o:p></sp=
an></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; posted some=
 comments and needs to see a new revision before we<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; can submit =
to othe IESG.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Jon Hardwick: W=
SON-RWA draft has been shepherded by Daniele Ceccarelli<o:p></o:p></span></=
p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (thanks Dan=
iele!) and is now blocked on advancing by the base<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; PCEP-GMPLS =
draft.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Jon Hardwick: B=
ase PCEP-GMPLS draft is pending a shepherd report from Julien.<o:p></o:p></=
span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Jeff Tantsura: =
Segment Routing draft will be updated this week.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Jon Hardwick: I=
ANA early allocation for this and LSP-setup type drafts expires<o:p></o:p><=
/span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; in August -=
 we must publish before then.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Dhruv Dhody: St=
ateful P2MP draft can be progressed after the 6006bis draft.<o:p></o:p></sp=
an></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Dhruv Dhody: We=
 are discussing with association-group authors, to make sure it<o:p></o:p><=
/span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; could be prioriti=
zed, as multiple documents depend on it.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Young Lee: The =
Stateful PCE GMPLS draft will be revived; Xian has moved on but<o:p></o:p><=
/span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;she will hand the pen to some=
one else.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas"><o:p>&nbsp;</o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas"><o:p>&nbsp;</o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">2. Work in Prog=
ress<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">---------------=
----<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas"><o:p>&nbsp;</o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">2.1. PCEP Exten=
sion for LSP Diversity (Stephane Litkowski, 5 min)<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">https://datatra=
cker.ietf.org/doc/draft-ietf-pce-association-diversity/<o:p></o:p></span></=
p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas"><o:p>&nbsp;</o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">No questions.<o=
:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas"><o:p>&nbsp;</o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas"><o:p>&nbsp;</o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">2.2. Associatio=
n-aware Computation (Stephane Litkowski, 10 min)<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">https://datatra=
cker.ietf.org/doc/draft-litkowski-pce-state-sync/<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas"><o:p>&nbsp;</o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Andrew Dolganow=
: Why assume that the last state received is the final state?<o:p></o:p></s=
pan></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp; Message routes through the network may be different.&nbsp; If<o:p></=
o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp; sessions are flaping then it may get out of sync.<o:p></o:p></span><=
/p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Stephane Litkow=
ski: We had an idea to add a timestamp.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Robin Li: In mu=
ltiple failure scenarios, this may get out of sync. If the<o:p></o:p></span=
></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; session between PCC and PCE is brok=
en or if PCC is restarted. The<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; impact on other protocols like netc=
onf, BGP needs to be analyzed.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Stephane Litkow=
ski: You can not solve all the problems.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Julien Meuric: =
Who has read the document?&nbsp; [Not many except authors]<o:p></o:p></span=
></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Julien Meuric: =
Please read document and respond to the list.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas"><o:p>&nbsp;</o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas"><o:p>&nbsp;</o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">2.3. PCE's Cont=
rol Request (Chaitanya Yadlapalli, 5 min)<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">https://datatra=
cker.ietf.org/doc/draft-raghu-pce-lsp-control-request/<o:p></o:p></span></p=
>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas"><o:p>&nbsp;</o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Julien Meuric: =
Please do not suggest a specific bit number. This is the role of<o:p></o:p>=
</span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; IANA.=
 Just use TBD in your draft.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Andrew Dolganow=
: Can you clarify the need for this, before you ask for a bit.<o:p></o:p></=
span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Chaitanya Yadla=
palli: We will try to clarify the use case in the I-D.<o:p></o:p></span></p=
>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Julien Meuric: =
Please update the document and reflect changes to the list.<o:p></o:p></spa=
n></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Julien Meuric: =
Who has read the document?&nbsp; [About 12-15]<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Who, =
of those that read the document, think this is a useful<o:p></o:p></span></=
p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; featu=
re? [About the same]<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas"><o:p>&nbsp;</o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas"><o:p>&nbsp;</o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">2.4. Experiment=
al Codepoints (Dhruv Dhody, 5 min)<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">https://datatra=
cker.ietf.org/doc/draft-dhody-pce-pcep-exp-codepoints/<o:p></o:p></span></p=
>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas"><o:p>&nbsp;</o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Andrew Dolganow=
: Good work. There will be expected behavior, can you describe<o:p></o:p></=
span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp; how to interpret the experimental bits?<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Dhruv Dhody: Ac=
tually, I think this is already discussed in the PCEP RFC<o:p></o:p></span>=
</p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; [RFC5440]<o:p></o=
:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Andrew Dolganow=
: Can you just clarify this.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Dhruv Dhody: Yu=
p<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Jon Hardwick: P=
oll, who read the I-D? [8]<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Who thinks =
we need this? [same number]<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas"><o:p>&nbsp;</o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas"><o:p>&nbsp;</o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">2.5. Stateful H=
-PCE and ACTN (Dhurv Dhody, 10 min)<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">https://datatra=
cker.ietf.org/doc/draft-dhody-pce-applicability-actn/<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">https://datatra=
cker.ietf.org/doc/draft-dhodylee-pce-stateful-hpce/<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas"><o:p>&nbsp;</o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Michael Scharf:=
 [Slide 9] You extend PCEP (on MMI and MPI interface) for the VN<o:p></o:p>=
</span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
 concept, but it's not clear on the architecture. This is an<o:p></o:p></sp=
an></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
 ACTN issue, not directly related to the PCEP WG or PCEP I-D.<o:p></o:p></s=
pan></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Dhruv Dhody: We=
 will pick this up in the ACTN architecture I-Ds<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Jon Hardwick: W=
ho read the ACTN applicability document [10]<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Who thinks =
we need this? [About the same]<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas"><o:p>&nbsp;</o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Jon Hardwick: W=
ho has read the stateful H-PCE document [About 15]<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Who thinks =
we need this? [About the same, a few less]<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Jon Hardwick: W=
e will confirm on the list.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas"><o:p>&nbsp;</o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas"><o:p>&nbsp;</o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">3. New I-Ds<o:p=
></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">-----------<o:p=
></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas"><o:p>&nbsp;</o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">3.1. PCE-initia=
ted BRPC LSP Setup (Julien Meuric, 10 min)<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">https://datatra=
cker.ietf.org/doc/draft-dugeon-brpc-stateful/<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas"><o:p>&nbsp;</o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Fatai Zhang: In=
teresting I-D. Are you trying to use PCEP to create end-to-end<o:p></o:p></=
span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; connections acros=
s domains, i.e., like RSVP-TE.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Julien Meuric: =
Yes.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Fatai Zhang: Ca=
n we use these PCEP extensions for other applications?<o:p></o:p></span></p=
>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Julien Meuric: =
Yes, segment routing is a use case.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Fatai Zhang: Co=
uld you use PCECC?<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Julien Meuric: =
I think there is some common ground. We should discuss.<o:p></o:p></span></=
p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Dhruv Dhody: I =
like the I-D, I like the SL-label to be generic, so that it can<o:p></o:p><=
/span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; be useful for sta=
teful H-PCE as well, and a PCECC-like approach<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; might be better.<=
o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Dhruv Dhody: We=
 need to investigate the security aspects of stateful BRPC,<o:p></o:p></spa=
n></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; where PCE relatio=
nship is on the peer level, not client-server.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Julien Meuric: =
Agree. Its a -00 version.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas"><o:p>&nbsp;</o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas"><o:p>&nbsp;</o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">3.2. PCEP Exten=
sion for Associated Bidirectional LSPs (Rakesh Gandhi, 10 min)<o:p></o:p></=
span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">https://datatra=
cker.ietf.org/doc/draft-barth-pce-association-bidir/<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas"><o:p>&nbsp;</o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Jon Hardwick: W=
ho thinks this is a good I-D to have? [12]<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Good, we wi=
ll need to see more dicussion on the list.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas"><o:p>&nbsp;</o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas"><o:p>&nbsp;</o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">3.3. PCEP Exten=
sions for PM Reporting (Rakesh Gandhi, 10 min)<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">https://datatra=
cker.ietf.org/doc/draft-gandhi-pce-pm/<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas"><o:p>&nbsp;</o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Andrew Dolganow=
: Capability is useful, but adding telemetry data to PCEP will<o:p></o:p></=
span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp; not scale.&nbsp; The PCE is responsible for path computation which<o=
:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp; is already compute intensive.&nbsp; You can't add real-time<o:p></o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp; telemetry without overloading it.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Rakesh Ghandi: =
Motivation is to use the same channel to get LSP state as well<o:p></o:p></=
span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; as pe=
rformance.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Fatai Zhang: Re=
lationship to PCEP-LS is not mentioned in the document.<o:p></o:p></span></=
p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Jeff Tantsura: =
Same concerns as Andrew, do you measure at head-end or per node.<o:p></o:p>=
</span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Rakesh Ghandi: =
This is for head-end PCC, and for the LSPs that PCE cares about.<o:p></o:p>=
</span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas"><o:p>&nbsp;</o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas"><o:p>&nbsp;</o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">4. I-Ds Pending=
 Further Discussion<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">4.1. Bandwidth =
Scheduling (Yan Zhuang, 5 min)<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">https://datatra=
cker.ietf.org/doc/draft-zhuang-pce-stateful-pce-lsp-scheduling/<o:p></o:p><=
/span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas"><o:p>&nbsp;</o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Yan Zhuang: The=
 authors have now produced a merged document and are requesting<o:p></o:p><=
/span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; WG adoption.<o:p></o:p>=
</span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">Julien Meuric: =
New version was only uploaded today, so we must give people time<o:p></o:p>=
</span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; to re=
ad and comment before polling for adoption.&nbsp; Please send<o:p></o:p></s=
pan></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">&nbsp;&nbsp;&nb=
sp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; comme=
nts to the list.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas"><o:p>&nbsp;</o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas"><o:p>&nbsp;</o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">---------------=
----------------------------------------------------------------<o:p></o:p>=
</span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas"><o:p>&nbsp;</o:=
p></span></p>
<p class=3D"MsoNormal"><span style=3D"font-family:Consolas">End of session =
16:50.<o:p></o:p></span></p>
</div>
</body>
</html>

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From: Jonathan Hardwick <Jonathan.Hardwick@metaswitch.com>
To: "pce@ietf.org" <pce@ietf.org>
Thread-Topic: PCE WG meeting minutes available
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It looks like the mail exploder has chosen to truncate my email below.  Ple=
ase click on the link to see the complete minutes.
Jon


=3D=3D=3D=3D=3D=3D=3D=3D

The draft minutes for the PCE meeting at IETF 98 are now available.=A0 Than=
ks to all our scribes!=A0 Please let us know if you have any comments or co=
rrections.
https://www.ietf.org/proceedings/98/minutes/minutes-98-pce-01

Best regards
Jon and Julien

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D
PCE Working Group Meeting
IETF 98 (Chicago, IL)

Working Group Chairs:
=A0 =A0=A0=A0Julien Meuric (julien.meuric@orange.com)
=A0=A0=A0=A0 JP Vasseur (jpv@cisco.com)
=A0=A0=A0=A0 Jonathan Hardwick (jonathan.hardwick@metaswitch.com)

Working Group Secretary:
=A0=A0=A0=A0 Daniel King (daniel@olddog.co.uk)

Responsible AD:
=A0=A0=A0=A0 Deborah Brungard (db3546@att.com)

=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D

Session I

Time:
=A0=A0=A0=A0 March 27, 2017, 15:20-16:50 (3:20pm-4:50pm)

Location:
=A0=A0=A0=A0 Zurich G, Swissotel, Chicago IL, USA

With thanks to all our scribes!

---------------------------------------------------------------------------=
----

1. Introduction
---------------

1.1. Administrivia, Agenda Bashing (chairs, 5 min)

-=A0 The session is being co-chaired by Jon Hardwick and Julien Meuric.
=A0=A0 Unfortunately, JP was unable to travel to the IETF this time.
-=A0 Agenda bashing: no agenda changes.


1.2. WG Status (chairs, 15 min)

Jon Hardwick: Stateful PCE draft is with the IESG and pending an update; th=
e
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 authors have promised an update by =
1 April (no joke).
Jon Hardwick: LSP initiation draft is with the IESG and is pending routing
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 directorate review before IETF last=
 call can be issued.
Jon Hardwick: Inter-area/AS applicability draft needs an update before we c=
an
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 submit it to the IESG. Authors are =
working on it.
Jon Hardwick: PCEPS draft is now being shepherded by Cyril Margaria; he has
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 posted some comments and needs to s=
ee a new revision before we
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 can submit to othe IESG.
Jon Hardwick: WSON-RWA draft has been shepherded by Daniele Ceccarelli
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 (thanks Daniele!) and is now blocke=
d on advancing by the base
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 PCEP-GMPLS draft.
Jon Hardwick: Base PCEP-GMPLS draft is pending a shepherd report from Julie=
n.
Jeff Tantsura: Segment Routing draft will be updated this week.
Jon Hardwick: IANA early allocation for this and LSP-setup type drafts expi=
res
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 in August - we must publish before =
then.
Dhruv Dhody: Stateful P2MP draft can be progressed after the 6006bis draft.
Dhruv Dhody: We are discussing with association-group authors, to make sure=
 it
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 could be prioritized, as multiple docu=
ments depend on it.
Young Lee: The Stateful PCE GMPLS draft will be revived; Xian has moved on =
but
=A0=A0=A0=A0=A0=A0=A0=A0 =A0=A0she will hand the pen to someone else.


2. Work in Progress
-------------------

2.1. PCEP Extension for LSP Diversity (Stephane Litkowski, 5 min)
https://datatracker.ietf.org/doc/draft-ietf-pce-association-diversity/

No questions.


2.2. Association-aware Computation (Stephane Litkowski, 10 min)
https://datatracker.ietf.org/doc/draft-litkowski-pce-state-sync/

Andrew Dolganow: Why assume that the last state received is the final state=
?
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 Message routes through the=
 network may be different.=A0 If
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 sessions are flaping then =
it may get out of sync.
Stephane Litkowski: We had an idea to add a timestamp.
Robin Li: In multiple failure scenarios, this may get out of sync. If the
=A0=A0=A0=A0=A0=A0=A0=A0=A0 session between PCC and PCE is broken or if PCC=
 is restarted. The
=A0=A0=A0=A0=A0=A0=A0=A0=A0 impact on other protocols like netconf, BGP nee=
ds to be analyzed.
Stephane Litkowski: You can not solve all the problems.
Julien Meuric: Who has read the document?=A0 [Not many except authors]
Julien Meuric: Please read document and respond to the list.


2.3. PCE's Control Request (Chaitanya Yadlapalli, 5 min)
https://datatracker.ietf.org/doc/draft-raghu-pce-lsp-control-request/

Julien Meuric: Please do not suggest a specific bit number. This is the rol=
e of
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 IANA. Just use TBD in your draft=
.
Andrew Dolganow: Can you clarify the need for this, before you ask for a bi=
t.
Chaitanya Yadlapalli: We will try to clarify the use case in the I-D.
Julien Meuric: Please update the document and reflect changes to the list.
Julien Meuric: Who has read the document?=A0 [About 12-15]
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 Who, of those that read the docu=
ment, think this is a useful
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 feature? [About the same]


2.4. Experimental Codepoints (Dhruv Dhody, 5 min)
https://datatracker.ietf.org/doc/draft-dhody-pce-pcep-exp-codepoints/

Andrew Dolganow: Good work. There will be expected behavior, can you descri=
be
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 how to interpret the exper=
imental bits?
Dhruv Dhody: Actually, I think this is already discussed in the PCEP RFC
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 [RFC5440]
Andrew Dolganow: Can you just clarify this.
Dhruv Dhody: Yup
Jon Hardwick: Poll, who read the I-D? [8]
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 Who thinks we need this? [same numb=
er]


2.5. Stateful H-PCE and ACTN (Dhurv Dhody, 10 min)
https://datatracker.ietf.org/doc/draft-dhody-pce-applicability-actn/
https://datatracker.ietf.org/doc/draft-dhodylee-pce-stateful-hpce/

Michael Scharf: [Slide 9] You extend PCEP (on MMI and MPI interface) for th=
e VN
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 concept, but it's not clear o=
n the architecture. This is an
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 ACTN issue, not directly rela=
ted to the PCEP WG or PCEP I-D.
Dhruv Dhody: We will pick this up in the ACTN architecture I-Ds
Jon Hardwick: Who read the ACTN applicability document [10]
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 Who thinks we need this? [About the=
 same]

Jon Hardwick: Who has read the stateful H-PCE document [About 15]
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 Who thinks we need this? [About the=
 same, a few less]
Jon Hardwick: We will confirm on the list.


3. New I-Ds
-----------

3.1. PCE-initiated BRPC LSP Setup (Julien Meuric, 10 min)
https://datatracker.ietf.org/doc/draft-dugeon-brpc-stateful/

Fatai Zhang: Interesting I-D. Are you trying to use PCEP to create end-to-e=
nd
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 connections across domains, i.e., like=
 RSVP-TE.
Julien Meuric: Yes.
Fatai Zhang: Can we use these PCEP extensions for other applications?
Julien Meuric: Yes, segment routing is a use case.
Fatai Zhang: Could you use PCECC?
Julien Meuric: I think there is some common ground. We should discuss.
Dhruv Dhody: I like the I-D, I like the SL-label to be generic, so that it =
can
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 be useful for stateful H-PCE as well, =
and a PCECC-like approach
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 might be better.
Dhruv Dhody: We need to investigate the security aspects of stateful BRPC,
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 where PCE relationship is on the peer =
level, not client-server.
Julien Meuric: Agree. Its a -00 version.


3.2. PCEP Extension for Associated Bidirectional LSPs (Rakesh Gandhi, 10 mi=
n)
https://datatracker.ietf.org/doc/draft-barth-pce-association-bidir/

Jon Hardwick: Who thinks this is a good I-D to have? [12]
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 Good, we will need to see more dicu=
ssion on the list.


3.3. PCEP Extensions for PM Reporting (Rakesh Gandhi, 10 min)
https://datatracker.ietf.org/doc/draft-gandhi-pce-pm/

Andrew Dolganow: Capability is useful, but adding telemetry data to PCEP wi=
ll
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 not scale.=A0 The PCE is r=
esponsible for path computation which
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 is already compute intensi=
ve.=A0 You can't add real-time
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 telemetry without overload=
ing it.
Rakesh Ghandi: Motivation is to use the same channel to get LSP state as we=
ll
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 as performance.
Fatai Zhang: Relationship to PCEP-LS is not mentioned in the document.
Jeff Tantsura: Same concerns as Andrew, do you measure at head-end or per n=
ode.
Rakesh Ghandi: This is for head-end PCC, and for the LSPs that PCE cares ab=
out.


4. I-Ds Pending Further Discussion
4.1. Bandwidth Scheduling (Yan Zhuang, 5 min)
https://datatracker.ietf.org/doc/draft-zhuang-pce-stateful-pce-lsp-scheduli=
ng/

Yan Zhuang: The authors have now produced a merged document and are request=
ing
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 WG adoption.
Julien Meuric: New version was only uploaded today, so we must give people =
time
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 to read and comment before polli=
ng for adoption.=A0 Please send
=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0=A0 comments to the list.


---------------------------------------------------------------------------=
----

End of session 16:50.


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From: Daniele Ceccarelli <daniele.ceccarelli@ericsson.com>
To: "pce@ietf.org" <pce@ietf.org>, TEAS WG <teas@ietf.org>, "mpls@ietf.org" <mpls@ietf.org>, "ccamp@ietf.org" <ccamp@ietf.org>
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Thread-Topic: FlexE side meeting
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Date: Wed, 29 Mar 2017 16:27:26 +0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/pce/UzI1QSXN1MB0PT8bOCgWlBh3iSE>
Subject: [Pce] FlexE side meeting
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Hi everyone,

thanks for the useful and productive meeting.

I've uploaded the slides in the CCAMP page as well as the minutes (thanks t=
o Andy for putting them together)
https://datatracker.ietf.org/meeting/98/session/ccamp

The recordings can be found at the following link
http://recs.conf.meetecho.com/Playout/watch.jsp?recording=3DIETF98_CCAMP_Fl=
exE&chapter=3Dchapter_1

Thanks
Daniele & Nic

From: Daniele Ceccarelli
Sent: marted=EC 28 marzo 2017 12:10
To: Daniele Ceccarelli <daniele.ceccarelli@ericsson.com>; pce@ietf.org; TEA=
S WG <teas@ietf.org>; routing-discussion@ietf.org; mpls@ietf.org; ccamp@iet=
f.org
Cc: Ignas Bagdonas <ibagdona@gmail.com>; draft-izh-ccamp-flexe-fwk@ietf.org=
; N.Leymann@telekom.de
Subject: RE: [CCAMP] FlexE side meeting


...and the agenda



>> The agenda will be:

>>

>> 1. FlexE background and origins: Haomian Zheng

>> 2. FlexE Technology Deep Dive:   Iftekhar Hussain

>> 3. FlexE in the IETF:            Mach Chen

>> 4. Open Mic


From: CCAMP [mailto:ccamp-bounces@ietf.org] On Behalf Of Daniele Ceccarelli
Sent: marted=EC 28 marzo 2017 12:00
To: pce@ietf.org<mailto:pce@ietf.org>; TEAS WG <teas@ietf.org<mailto:teas@i=
etf.org>>; routing-discussion@ietf.org<mailto:routing-discussion@ietf.org>;=
 mpls@ietf.org<mailto:mpls@ietf.org>; ccamp@ietf.org<mailto:ccamp@ietf.org>
Cc: Ignas Bagdonas <ibagdona@gmail.com<mailto:ibagdona@gmail.com>>; draft-i=
zh-ccamp-flexe-fwk@ietf.org<mailto:draft-izh-ccamp-flexe-fwk@ietf.org>; N.L=
eymann@telekom.de<mailto:N.Leymann@telekom.de>
Subject: [CCAMP] FlexE side meeting

Hi everyone,

a reminder for the FlexE side meeting and the link to Meetecho:

When: Tuesday 18:45-20:15
Room: Zurich B
Remote participation - Meetecho: http://www.meetecho.com/ietf98/CCAMP-FlexE

BR
Daniele, Nic, Loa

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<p class=3D"MsoNormal">Hi everyone,<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">thanks for the useful and produ=
ctive meeting.
<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&#8217;ve uploaded the slides =
in the CCAMP page as well as the minutes (thanks to Andy for putting them t=
ogether)<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><a href=3D"https://datatracker.=
ietf.org/meeting/98/session/ccamp">https://datatracker.ietf.org/meeting/98/=
session/ccamp</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">The recordings can be found at =
the following link<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><a href=3D"http://recs.conf.mee=
techo.com/Playout/watch.jsp?recording=3DIETF98_CCAMP_FlexE&amp;chapter=3Dch=
apter_1">http://recs.conf.meetecho.com/Playout/watch.jsp?recording=3DIETF98=
_CCAMP_FlexE&amp;chapter=3Dchapter_1</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">Thanks<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Daniele &amp; Nic<o:p></o:p></s=
pan></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" style=3D"margin-left:35.4pt"><b><span lang=3D"EN-US"=
 style=3D"mso-fareast-language:IT">From:</span></b><span lang=3D"EN-US" sty=
le=3D"mso-fareast-language:IT"> Daniele Ceccarelli
<br>
<b>Sent:</b> marted=EC 28 marzo 2017 12:10<br>
<b>To:</b> Daniele Ceccarelli &lt;daniele.ceccarelli@ericsson.com&gt;; pce@=
ietf.org; TEAS WG &lt;teas@ietf.org&gt;; routing-discussion@ietf.org; mpls@=
ietf.org; ccamp@ietf.org<br>
<b>Cc:</b> Ignas Bagdonas &lt;ibagdona@gmail.com&gt;; draft-izh-ccamp-flexe=
-fwk@ietf.org; N.Leymann@telekom.de<br>
<b>Subject:</b> RE: [CCAMP] FlexE side meeting<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoPlainText" style=3D"margin-left:35.4pt"><span lang=3D"EN-US"=
>&#8230;and the agenda<o:p></o:p></span></p>
<p class=3D"MsoPlainText" style=3D"margin-left:35.4pt"><span lang=3D"EN-US"=
><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoPlainText" style=3D"margin-left:35.4pt"><span lang=3D"EN-US"=
>&gt;&gt; The agenda will be:<o:p></o:p></span></p>
<p class=3D"MsoPlainText" style=3D"margin-left:35.4pt"><span lang=3D"EN-US"=
>&gt;&gt;<o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoPlainText" style=3D"margin-left:35.4pt"><span lang=3D"EN-US"=
>&gt;&gt; 1. FlexE background and origins: Haomian Zheng<o:p></o:p></span><=
/p>
<p class=3D"MsoPlainText" style=3D"margin-left:35.4pt"><span lang=3D"EN-US"=
>&gt;&gt; 2. FlexE Technology Deep Dive:&nbsp;&nbsp; Iftekhar Hussain<o:p><=
/o:p></span></p>
<p class=3D"MsoPlainText" style=3D"margin-left:35.4pt"><span lang=3D"EN-US"=
>&gt;&gt; 3. FlexE in the IETF:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp; Mach Chen<o:p></o:p></span></p>
<p class=3D"MsoPlainText" style=3D"margin-left:35.4pt">&gt;&gt; 4. Open Mic=
<o:p></o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:35.4pt"><o:p>&nbsp;</o:p></p>
<div>
<div style=3D"border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt"><b><span lang=3D"EN-US"=
 style=3D"mso-fareast-language:IT">From:</span></b><span lang=3D"EN-US" sty=
le=3D"mso-fareast-language:IT"> CCAMP [<a href=3D"mailto:ccamp-bounces@ietf=
.org">mailto:ccamp-bounces@ietf.org</a>]
<b>On Behalf Of </b>Daniele Ceccarelli<br>
<b>Sent:</b> marted=EC 28 marzo 2017 12:00<br>
<b>To:</b> <a href=3D"mailto:pce@ietf.org">pce@ietf.org</a>; TEAS WG &lt;<a=
 href=3D"mailto:teas@ietf.org">teas@ietf.org</a>&gt;;
<a href=3D"mailto:routing-discussion@ietf.org">routing-discussion@ietf.org<=
/a>; <a href=3D"mailto:mpls@ietf.org">
mpls@ietf.org</a>; <a href=3D"mailto:ccamp@ietf.org">ccamp@ietf.org</a><br>
<b>Cc:</b> Ignas Bagdonas &lt;<a href=3D"mailto:ibagdona@gmail.com">ibagdon=
a@gmail.com</a>&gt;;
<a href=3D"mailto:draft-izh-ccamp-flexe-fwk@ietf.org">draft-izh-ccamp-flexe=
-fwk@ietf.org</a>;
<a href=3D"mailto:N.Leymann@telekom.de">N.Leymann@telekom.de</a><br>
<b>Subject:</b> [CCAMP] FlexE side meeting<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt">Hi everyone,<o:p></o:p>=
</p>
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt"><span lang=3D"EN-US">a =
reminder for the FlexE side meeting and the link to Meetecho:<o:p></o:p></s=
pan></p>
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt"><span lang=3D"EN-US"><o=
:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt"><span lang=3D"EN-US">Wh=
en: Tuesday 18:45-20:15<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt"><span lang=3D"EN-US">Ro=
om: Zurich B<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt"><span lang=3D"EN-US">Re=
mote participation - Meetecho:
<a href=3D"http://www.meetecho.com/ietf98/CCAMP-FlexE">http://www.meetecho.=
com/ietf98/CCAMP-FlexE</a>
<o:p></o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt"><span lang=3D"EN-US"><o=
:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal" style=3D"margin-left:70.8pt"><span lang=3D"EN-US">BR=
<br>
Daniele, Nic, Loa<o:p></o:p></span></p>
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