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From: "BELOTTI, SERGIO (SERGIO)" <sergio.belotti@alcatel-lucent.com>
To: Susan Hares <shares@ndzh.com>, "'Mahesh Jethanandani'" <mjethanandani@gmail.com>
Thread-Topic: [Rtg-yang-coord] [netmod] Requirements for I2RS protocol and I2RS interim (6/24/2015 at 10:00 - 11:30am ET)
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Date: Wed, 1 Jul 2015 09:27:35 +0000
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Subject: Re: [Rtg-yang-coord] [netmod] Requirements for I2RS protocol and I2RS interim (6/24/2015 at 10:00 - 11:30am ET)
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Date: Wed, 01 Jul 2015 11:38:36 -0400
From: Lou Berger <lberger@labn.net>
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Subject: Re: [Rtg-yang-coord] Requirements for I2RS protocol and I2RS interim (6/24/2015 at 10:00 - 11:30am ET)
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> At this time, none of the Topology models utilize Traffic
engineering.  It is anticipated that these models will support traffic
engineering.

Sue, Jeff,
    Given some recent messages on the list, I thought it best to confirm
we're all still on the same page. 

Based on our past discussions, it's my understanding that the work being
done in TEAS (see draft-ietf-teas-yang-te-topo) will serve as the
foundation for TE support in the I2RS models.  I complete agree that
there are details on how the different topology models will
integrate/mesh still needs to be worked out, and I assumed that this is
what you/Sue were referring to above. -- But we will not have two sets
of TE topology models.

I believe that the authors of the respective drafts are already are
working this.  (Pavan, my co-chair as well as coauthor of the TEAS yang
model, can comment on this.)

Please let me know if I missed/miss-understood something.

Thanks,
Lou
(as TEAS WG co-chair)
On 6/23/2015 2:19 PM, Susan Hares wrote:
>
> Netconf Working Group:
>
>  
>
> The I2RS WG would like to pass you a set of requirements for the I2RS
> protocol, and asks that you provide an analysis by IETF 93 on whether
> NETCONF or RESTCONF can meet these requirements.   We expect that
> these requirements may require changes to the either NETCONF or
> RESTCONF. 
>
>  
>
> The I2RS architecture document (draft-ietf-i2rs-architecture-09
> <https://datatracker.ietf.org/doc/draft-ietf-i2rs-architecture/>)
> provides a high-level overview of the I2RS  protocol.  The I2RS has
> compiled the following documents to provide the additional details on
> the requirements for the protocols.
>
>  
>
> 1)      draft-ietf-i2rs-ephemeral-state-00
> <https://datatracker.ietf.org/doc/draft-ietf-i2rs-ephemeral-state/> 
>
> 2)      draft-ietf-i2rs-pub-sub-requirements-02
> <https://datatracker.ietf.org/doc/draft-ietf-i2rs-pub-sub-requirements/> 
>
> 3)      draft-ietf-i2rs-traceability-03
> <https://datatracker.ietf.org/doc/draft-ietf-i2rs-traceability/> 
>
>  
>
> The draft-ietf-i2rs-ephemeral-state-00 contains the results of the
> discussion from the 6/10 interim and the top 10 requirements for
> I2RS.  In addition, the draft-ietf-i2rs-ephemeral-state-00 contains an
> set of detailed requirements on how the I2RS WG sees the I2RS protocol
> operating.  These detailed requirements are to be seen as suggestions
> on what type of solution the I2RS WG would like to see, but I2RS WG is
> asking the NETCONF WG to provide its best designed protocol.  Please
> note as part of these detailed requirement the
> draft-ietf-i2rs-ephemeral-states-00 contains the idea of using
> metadata to record secondary identity.   
>
>  
>
> The I2RS protocol is driven by data-models.  The approved data models
> for protocol independent services are:
>
> -          draft-ietf-i2rs-rib-data-model-00
> <https://datatracker.ietf.org/doc/draft-ietf-i2rs-rib-data-model/>
>
> -          Filter-Based RIBS:  draft-kini-i2rs-fb-rib-data-model.00
> (released later this week)
>
> -          Topology model which is a composite of:
>
> o   Generic topology model: draft-ietf-i2rs-yang-network-topo-01
> <https://datatracker.ietf.org/doc/draft-ietf-i2rs-yang-network-topo/> 
>
> o   L3 topology model: draft-ietf-i2rs-yang-l3-topology-00
> <https://datatracker.ietf.org/doc/draft-ietf-i2rs-yang-l3-topology/> 
>
> o   L2 topology model: draft-ietf-i2rs-yang-l2-network-topology-00
> <https://datatracker.ietf.org/doc/draft-ietf-i2rs-yang-l2-network-topology/> 
>
> o   L1 Topology model: draft-zhang-i2rs-l1-topo-yang-model-01 (-02
> released later this week).
>
> o   Service topology model:
> draft-hares-i2rs-service-topo-yang-model-00 (released on Wednesday)
>
>  
>
> At this time, none of the Topology models utilize Traffic
> engineering.  It is anticipated that these models will support traffic
> engineering.  Estimated rates of transfer and timing requirements for
> these modules are at: http://trac.tools.ietf.org/wg/i2rs/trac/wiki -
> under the protocol requirements table.
>
>  
>
> We hope that NETCONF WG can provide some initial feedback on these
> requirements by IETF 93 at the Tuesday I2RS session.   I2RS will use
> the 6/24 interim at 10:00-11:30am ET  to provide a time for any
> participate in the I2RS, netconf, or netmod group to ask additional
> questions on these requirements.
>
>  
>
> Sue Hares
>
>  
>
> Interim time: 10:00-11:30am ET
>
> Date 6/24/2015
>
> Webex:
>
> https://ietf.webex.com/ietf/j.php?MTID=m4260bee7be61cb17b0008a3c52069d0f
>
>  
>
> agenda:
>
>  
>
> 10:00 – 10:05 – Bash Agenda
>
> 10:05 – 10:20- -  review of requirements from
>
> draft-ietf-i2rs-ephemeral-state-00
>
> draft-ietf-i2rs-pub-sub-requirements-02
>
> draft-ietf-i2rs-traceability-03
>
> Timing requirements
>
>  
>
> 10:20 – 10:30    Review of requirements for mutual authentication,
>
> and transaction in  draft-hares-auth-trans-01 requirements
>
>  
>
> 10:30- 11:30     Open discussion for I2RS Requirements
>
>  
>
> Proceedings and slides can be found at:
>
> http://www.ietf.org/proceedings/interim/2015/06/24/i2rs/proceedings.html
>
>  
>
> Sue Hares
>
>  
>
>  
>
>
>
> _______________________________________________
> Rtg-yang-coord mailing list
> Rtg-yang-coord@ietf.org
> https://www.ietf.org/mailman/listinfo/rtg-yang-coord



From nobody Wed Jul  1 12:34:47 2015
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Subject: Re: [Rtg-yang-coord] Requirements for I2RS protocol and I2RS interim (6/24/2015 at 10:00 - 11:30am ET)
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Lou,

On Wed, Jul 01, 2015 at 11:38:36AM -0400, Lou Berger wrote:
> > At this time, none of the Topology models utilize Traffic
> engineering.  It is anticipated that these models will support traffic
> engineering.
> 
> Sue, Jeff,
>     Given some recent messages on the list, I thought it best to confirm
> we're all still on the same page. 
> 
> Based on our past discussions, it's my understanding that the work being
> done in TEAS (see draft-ietf-teas-yang-te-topo) will serve as the
> foundation for TE support in the I2RS models.  I complete agree that
> there are details on how the different topology models will
> integrate/mesh still needs to be worked out, and I assumed that this is
> what you/Sue were referring to above. -- But we will not have two sets
> of TE topology models.

I'll admit to not having recently read the teas model.  I'll try to correct
that soon.

That said, we have some interesting headaches to work through for i2rs
purposes:
- We need a base model to work from.  Which group provides the base is
  unimportant.
- Some level of the abstract TE interactions that have i2rs impacts will
  potentially impose some impact on the models.
- The biggest question is interactions with regard to ephemeral state.

As you might have noticed, we're having quite the issue trying to shake out
ephemeral state issues with netmod/netconf.  Until we know what the answer
is going to be in yang and the protocols, there's a large unknown as to
whether we'll need our own "base model" or not.  

But just like with everything else in yang, we want to make sure that when
there are reusable components, lets do it one place.  As I said during
today's i2rs interim, we do have to be careful about doing premature refactoring -
doubly so as we don't know what the impacts of ephemeral stuff will be on
i2rs.

(Benoit will hopefully take the above observation as a note that even
modeling work is starting to get impacted now and not just language/protocol.)

The best I can recommend at this time is lets make sure everyone is paying
attention to both drafts, identifying common components and be aware that we
may need to reconcile the models via refactoring when the time comes.  Plus
it gets more eyeballs on both models.

> I believe that the authors of the respective drafts are already are
> working this.  (Pavan, my co-chair as well as coauthor of the TEAS yang
> model, can comment on this.)

I'm going to largely say, "Don't Panic".  We all want to do the right thing
IETF-wise.

-- Jeff


From nobody Wed Jul  1 12:55:10 2015
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Subject: Re: [Rtg-yang-coord] [i2rs] Requirements for I2RS protocol and I2RS interim (6/24/2015 at 10:00 - 11:30am ET)
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Jeff,
    Thank you for the response.  All sounds right.  I have a couple of
additional points included below that I suspect we agree on.

On 7/1/2015 3:36 PM, Jeffrey Haas wrote:
...
> The best I can recommend at this time is lets make sure everyone is paying
> attention to both drafts, identifying common components and be aware that we
> may need to reconcile the models via refactoring when the time comes.  Plus
> it gets more eyeballs on both models.
Agreed.  Perhaps we can get a time for the authors of the I2RS and TEAS
drafts to sit together in Prague to try to work through some of the
details - or at least ensure they are on the same technical page? I
talked to Pavan and he's willing to setup this up/coordinate.

>> > I believe that the authors of the respective drafts are already are
>> > working this.  (Pavan, my co-chair as well as coauthor of the TEAS yang
>> > model, can comment on this.)
> I'm going to largely say, "Don't Panic".  We all want to do the right thing
> IETF-wise.

I think we should ensure that we don't produce two models for the same
thing -- this is a "motherhood" statement, so I'd be surprised if
there's any disagreement on this point.

Thanks,
Lou

> -- Jeff



From nobody Wed Jul  1 13:04:29 2015
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Subject: [Rtg-yang-coord] Initial IEEE Yang Models Committed
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=09
	FYI,

	There was discussion of IEEE/Ethernet models a while back. I =
wanted to let everyone know that an initial one was just pushed.=20

	https://github.com/YangModels/yang/tree/master/experimental/ieee

	=E2=80=94Tom




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Subject: Re: [Rtg-yang-coord] [i2rs] Requirements for I2RS protocol and I2RS interim (6/24/2015 at 10:00 - 11:30am ET)
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Lou and Jeffrey:

On 7/22, I talked with the TEAS TE authors team.  They had concerns about
how the I2RS was going to integrate the TEAS work.  I realized there are two
different approaches to the models - and I expressed my  hope that we could
have aligned/merged models.  I chatted with the I2RS topology draft authors,
and I found that the authors had not yet begun to work on the TE models.
The best plan is to try to get the TEAS authors and the I2RS Topology
authors together at IETF 93 and get a plan together for migrating these
teams together.  

I will send a few times out to teams this evening.   It would really help
I2RS if the TEAS group would meet early in the week (or if the folks are at
the hack-athon like I am we may meet Saturday night).  We could then try to
give NETCONF our best insight on the TE additions. 

 In order to prepare for this TE/Non-TE merge, I2RS WG need to finalize the
non-TE models in the topology.  Today's interim was target to firm up the
Service and T1 topology models, but the T1 topology model will not be ready
until IETF 93.  My message in June hoped that we would be to the TE models
by IETF so that NETCONF would have our entire scope, but we will not be
there by the beginning of IETF.   I2RS will be following up in August and
September with Interims that focus on the TE models in I2RS Topology model. 

Do you have any other suggestions? 

Sue 


-----Original Message-----
From: i2rs [mailto:i2rs-bounces@ietf.org] On Behalf Of Lou Berger
Sent: Wednesday, July 01, 2015 11:39 AM
To: Susan Hares; 'Jeffrey Haas'
Cc: Rtg-yang-coord@ietf.org; i2rs@ietf.org; 'BRUNGARD, DEBORAH A'; Vishnu
Pavan Beeram; 'Alvaro Retana (aretana)'; 'Alia Atlas'
Subject: Re: [i2rs] [Rtg-yang-coord] Requirements for I2RS protocol and I2RS
interim (6/24/2015 at 10:00 - 11:30am ET)

> At this time, none of the Topology models utilize Traffic
engineering.  It is anticipated that these models will support traffic
engineering.

Sue, Jeff,
    Given some recent messages on the list, I thought it best to confirm
we're all still on the same page. 

Based on our past discussions, it's my understanding that the work being
done in TEAS (see draft-ietf-teas-yang-te-topo) will serve as the foundation
for TE support in the I2RS models.  I complete agree that there are details
on how the different topology models will integrate/mesh still needs to be
worked out, and I assumed that this is what you/Sue were referring to above.
-- But we will not have two sets of TE topology models.

I believe that the authors of the respective drafts are already are working
this.  (Pavan, my co-chair as well as coauthor of the TEAS yang model, can
comment on this.)

Please let me know if I missed/miss-understood something.

Thanks,
Lou
(as TEAS WG co-chair)
On 6/23/2015 2:19 PM, Susan Hares wrote:
>
> Netconf Working Group:
>
>  
>
> The I2RS WG would like to pass you a set of requirements for the I2RS 
> protocol, and asks that you provide an analysis by IETF 93 on whether
> NETCONF or RESTCONF can meet these requirements.   We expect that
> these requirements may require changes to the either NETCONF or 
> RESTCONF.
>
>  
>
> The I2RS architecture document (draft-ietf-i2rs-architecture-09
> <https://datatracker.ietf.org/doc/draft-ietf-i2rs-architecture/>)
> provides a high-level overview of the I2RS  protocol.  The I2RS has 
> compiled the following documents to provide the additional details on 
> the requirements for the protocols.
>
>  
>
> 1)      draft-ietf-i2rs-ephemeral-state-00
> <https://datatracker.ietf.org/doc/draft-ietf-i2rs-ephemeral-state/>
>
> 2)      draft-ietf-i2rs-pub-sub-requirements-02
> <https://datatracker.ietf.org/doc/draft-ietf-i2rs-pub-sub-requirements
> />
>
> 3)      draft-ietf-i2rs-traceability-03
> <https://datatracker.ietf.org/doc/draft-ietf-i2rs-traceability/>
>
>  
>
> The draft-ietf-i2rs-ephemeral-state-00 contains the results of the 
> discussion from the 6/10 interim and the top 10 requirements for I2RS.  
> In addition, the draft-ietf-i2rs-ephemeral-state-00 contains an set of 
> detailed requirements on how the I2RS WG sees the I2RS protocol 
> operating.  These detailed requirements are to be seen as suggestions 
> on what type of solution the I2RS WG would like to see, but I2RS WG is 
> asking the NETCONF WG to provide its best designed protocol.  Please 
> note as part of these detailed requirement the
> draft-ietf-i2rs-ephemeral-states-00 contains the idea of using
> metadata to record secondary identity.   
>
>  
>
> The I2RS protocol is driven by data-models.  The approved data models 
> for protocol independent services are:
>
> -          draft-ietf-i2rs-rib-data-model-00
> <https://datatracker.ietf.org/doc/draft-ietf-i2rs-rib-data-model/>
>
> -          Filter-Based RIBS:  draft-kini-i2rs-fb-rib-data-model.00
> (released later this week)
>
> -          Topology model which is a composite of:
>
> o   Generic topology model: draft-ietf-i2rs-yang-network-topo-01
> <https://datatracker.ietf.org/doc/draft-ietf-i2rs-yang-network-topo/>
>
> o   L3 topology model: draft-ietf-i2rs-yang-l3-topology-00
> <https://datatracker.ietf.org/doc/draft-ietf-i2rs-yang-l3-topology/>
>
> o   L2 topology model: draft-ietf-i2rs-yang-l2-network-topology-00
> <https://datatracker.ietf.org/doc/draft-ietf-i2rs-yang-l2-network-topo
> logy/>
>
> o   L1 Topology model: draft-zhang-i2rs-l1-topo-yang-model-01 (-02
> released later this week).
>
> o   Service topology model:
> draft-hares-i2rs-service-topo-yang-model-00 (released on Wednesday)
>
>  
>
> At this time, none of the Topology models utilize Traffic engineering.  
> It is anticipated that these models will support traffic engineering.  
> Estimated rates of transfer and timing requirements for these modules 
> are at: http://trac.tools.ietf.org/wg/i2rs/trac/wiki - under the 
> protocol requirements table.
>
>  
>
> We hope that NETCONF WG can provide some initial feedback on these
> requirements by IETF 93 at the Tuesday I2RS session.   I2RS will use
> the 6/24 interim at 10:00-11:30am ET  to provide a time for any 
> participate in the I2RS, netconf, or netmod group to ask additional 
> questions on these requirements.
>
>  
>
> Sue Hares
>
>  
>
> Interim time: 10:00-11:30am ET
>
> Date 6/24/2015
>
> Webex:
>
> https://ietf.webex.com/ietf/j.php?MTID=m4260bee7be61cb17b0008a3c52069d
> 0f
>
>  
>
> agenda:
>
>  
>
> 10:00 - 10:05 - Bash Agenda
>
> 10:05 - 10:20- -  review of requirements from
>
> draft-ietf-i2rs-ephemeral-state-00
>
> draft-ietf-i2rs-pub-sub-requirements-02
>
> draft-ietf-i2rs-traceability-03
>
> Timing requirements
>
>  
>
> 10:20 - 10:30    Review of requirements for mutual authentication,
>
> and transaction in  draft-hares-auth-trans-01 requirements
>
>  
>
> 10:30- 11:30     Open discussion for I2RS Requirements
>
>  
>
> Proceedings and slides can be found at:
>
> http://www.ietf.org/proceedings/interim/2015/06/24/i2rs/proceedings.ht
> ml
>
>  
>
> Sue Hares
>
>  
>
>  
>
>
>
> _______________________________________________
> Rtg-yang-coord mailing list
> Rtg-yang-coord@ietf.org
> https://www.ietf.org/mailman/listinfo/rtg-yang-coord


_______________________________________________
i2rs mailing list
i2rs@ietf.org
https://www.ietf.org/mailman/listinfo/i2rs


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Date: Thu, 02 Jul 2015 13:09:42 -0400
From: Lou Berger <lberger@labn.net>
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Subject: Re: [Rtg-yang-coord] [i2rs] Requirements for I2RS protocol and I2RS interim (6/24/2015 at 10:00 - 11:30am ET)
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Sue,

On 7/1/2015 6:49 PM, Susan Hares wrote:
> ... In order to prepare for this TE/Non-TE merge, ...
> Do you have any other suggestions?

It sounds like the authors are working through this. So all that is
needed seems to be happening.  We should probably announce the time and
place where the authors will be meeting in Prague so that others who are
interested can show.  (I'm assuming Pavan will coordinate the space
request with the authors and secretariat.) -- Certianly an brief update
in each WG seems appropriate.  Not sure this more than someone saying
something at the mic.

> I2RS will be following up in August and
> September with Interims that focus on the TE models in I2RS Topology model. 

This should work, as long as the interims include the active
participants.  We're having so many interims nowadays that it seems
folks are having trouble balancing day jobs (or sleep if you end up on
the wrong end of the time zone mismatch) with meetings...

Thanks,
Lou





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From: Mahesh Jethanandani <mjethanandani@gmail.com>
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Subject: Re: [Rtg-yang-coord] [netmod] Requirements for I2RS protocol and I2RS interim (6/24/2015 at 10:00 - 11:30am ET)
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> On Jun 30, 2015, at 3:13 PM, Eric Voit (evoit) <evoit@cisco.com> =
wrote:
>=20
> What might be interesting for a NETCONF speaking slot is an analysis =
of what requirements from =E2=80=9Cdraft-ietf-i2rs-pub-sub-requirements=E2=
=80=9D are met by =E2=80=9Cdraft-clemm-netconf-yang-push=E2=80=9D.=20

Susan or somebody from i2rs WG can decide whether the suggested =
presentation would help clarify i2rs requirements to NETCONF. =46rom a =
personal perspective it would certainly help to have examples of how the =
requirements could be met.

Cheers.

Mahesh Jethanandani
mjethanandani@gmail.com




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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html =
charset=3Dutf-8"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" =
class=3D""><br class=3D""><div><blockquote type=3D"cite" class=3D""><div =
class=3D"">On Jun 30, 2015, at 3:13 PM, Eric Voit (evoit) &lt;<a =
href=3D"mailto:evoit@cisco.com" class=3D"">evoit@cisco.com</a>&gt; =
wrote:</div><br class=3D"Apple-interchange-newline"><div class=3D""><span =
style=3D"color: rgb(31, 73, 125); font-family: Calibri, sans-serif; =
font-size: 15px; font-style: normal; font-variant: normal; font-weight: =
normal; letter-spacing: normal; line-height: normal; orphans: auto; =
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normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; =
display: inline !important; float: none;" class=3D"">What might be =
interesting for a NETCONF speaking slot is an analysis of what =
requirements from =E2=80=9Cdraft-ietf-i2rs-pub-sub-requirements=E2=80=9D =
are met by =
=E2=80=9Cdraft-clemm-netconf-yang-push=E2=80=9D.&nbsp;</span></div></block=
quote><br class=3D""></div><div>Susan or somebody from i2rs WG can =
decide whether the suggested presentation would help clarify i2rs =
requirements to NETCONF. =46rom a personal perspective it would =
certainly help to have examples of how the requirements could be =
met.</div><div><br class=3D""></div><div>Cheers.</div><br class=3D""><div =
apple-content-edited=3D"true" class=3D"">
<div class=3D"">Mahesh Jethanandani</div><div class=3D""><a =
href=3D"mailto:mjethanandani@gmail.com" =
class=3D"">mjethanandani@gmail.com</a></div><div class=3D""><br =
class=3D""></div><br class=3D"Apple-interchange-newline">

</div>
<br class=3D""></body></html>=

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From nobody Thu Jul  2 14:06:50 2015
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Subject: Re: [Rtg-yang-coord] [i2rs] [netmod] Requirements for I2RS protocol and I2RS interim (6/24/2015 at 10:00 - 11:30am ET)
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Mahesh:=20

=20

I think this would really help show how the requirements can be met. =
Let=E2=80=99s plan on Eric doing an analysis of what requirements are =
met by =E2=80=9Cdraft-clemm-netconf-yang-push=E2=80=9D.=20

=20

Sue=20

=20

From: i2rs [mailto:i2rs-bounces@ietf.org] On Behalf Of Mahesh =
Jethanandani
Sent: Thursday, July 02, 2015 5:06 PM
To: Eric Voit (evoit)
Cc: Rtg-yang-coord@ietf.org; i2rs@ietf.org; NETMOD Working Group; =
BRUNGARD, DEBORAH A; Alexander Clemm (alex); Netconf; Susan Hares
Subject: Re: [i2rs] [Rtg-yang-coord] [netmod] Requirements for I2RS =
protocol and I2RS interim (6/24/2015 at 10:00 - 11:30am ET)

=20

=20

On Jun 30, 2015, at 3:13 PM, Eric Voit (evoit) <evoit@cisco.com> wrote:

=20

What might be interesting for a NETCONF speaking slot is an analysis of =
what requirements from =
=E2=80=9Cdraft-ietf-i2rs-pub-sub-requirements=E2=80=9D are met by =
=E2=80=9Cdraft-clemm-netconf-yang-push=E2=80=9D.=20

=20

Susan or somebody from i2rs WG can decide whether the suggested =
presentation would help clarify i2rs requirements to NETCONF. From a =
personal perspective it would certainly help to have examples of how the =
requirements could be met.

=20

Cheers.

=20

Mahesh Jethanandani

mjethanandani@gmail.com

=20

=20

=20


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style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Mahesh: <o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>I think this would really help show how the requirements can be met. =
Let=E2=80=99s plan on Eric doing an analysis of what requirements are =
met by =E2=80=9Cdraft-clemm-netconf-yang-push=E2=80=9D. =
<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Sue <o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><div><div =
style=3D'border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in'><p class=3DMsoNormal><b><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span>=
</b><span style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'> =
i2rs [mailto:i2rs-bounces@ietf.org] <b>On Behalf Of </b>Mahesh =
Jethanandani<br><b>Sent:</b> Thursday, July 02, 2015 5:06 =
PM<br><b>To:</b> Eric Voit (evoit)<br><b>Cc:</b> =
Rtg-yang-coord@ietf.org; i2rs@ietf.org; NETMOD Working Group; BRUNGARD, =
DEBORAH A; Alexander Clemm (alex); Netconf; Susan =
Hares<br><b>Subject:</b> Re: [i2rs] [Rtg-yang-coord] [netmod] =
Requirements for I2RS protocol and I2RS interim (6/24/2015 at 10:00 - =
11:30am ET)<o:p></o:p></span></p></div></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><div><blockquote =
style=3D'margin-top:5.0pt;margin-bottom:5.0pt'><div><p =
class=3DMsoNormal>On Jun 30, 2015, at 3:13 PM, Eric Voit (evoit) &lt;<a =
href=3D"mailto:evoit@cisco.com">evoit@cisco.com</a>&gt; =
wrote:<o:p></o:p></p></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><div><p class=3DMsoNormal><span =
style=3D'font-size:11.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>What might be interesting for a NETCONF speaking slot is an analysis =
of what requirements from =
=E2=80=9Cdraft-ietf-i2rs-pub-sub-requirements=E2=80=9D are met by =
=E2=80=9Cdraft-clemm-netconf-yang-push=E2=80=9D.&nbsp;</span><o:p></o:p><=
/p></div></blockquote><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div><div><p =
class=3DMsoNormal>Susan or somebody from i2rs WG can decide whether the =
suggested presentation would help clarify i2rs requirements to NETCONF. =
>From a personal perspective it would certainly help to have examples of =
how the requirements could be met.<o:p></o:p></p></div><div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div><div><p =
class=3DMsoNormal>Cheers.<o:p></o:p></p></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><div><div><p =
class=3DMsoNormal>Mahesh Jethanandani<o:p></o:p></p></div><div><p =
class=3DMsoNormal><a =
href=3D"mailto:mjethanandani@gmail.com">mjethanandani@gmail.com</a><o:p><=
/o:p></p></div><div><p class=3DMsoNormal><o:p>&nbsp;</o:p></p></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div></body></html>
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From nobody Fri Jul  3 00:35:29 2015
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From nobody Fri Jul  3 12:39:33 2015
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From: "Susan Hares" <shares@ndzh.com>
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Subject: Re: [Rtg-yang-coord] [netmod] Requirements for I2RS protocol and I2RS interim (6/24/2015 at 10:00 - 11:30am ET)
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Sergio:=20

=20

Just in case you missed in the rest of the email threads:=20

=20

Yes =E2=80=93 I2RS plans to coordinate the topology model with the TEAS =
Topology model.  The work began with the authors last week, and will =
continue in a discussion of the TEAS And Topology authors next week =
(7/8)  in a conference call, and at IETF on Sunday (7/19 from 6-7pm).=20

=20

The I2RS WG will provide an update on the merging of these two models.  =
If you are a TEAS author, please let me know.   If you wish to help on =
an I2RS Topology model, the I2RS working group would appreciate your =
review of any model.=20

=20

I am personally working on the service layer model.=20

=20

Sue Hares=20

From: BELOTTI, SERGIO (SERGIO) =
[mailto:sergio.belotti@alcatel-lucent.com]=20
Sent: Wednesday, July 01, 2015 5:28 AM
To: Susan Hares; 'Mahesh Jethanandani'
Cc: Rtg-yang-coord@ietf.org; i2rs@ietf.org; 'NETMOD Working Group'; =
'Netconf'; 'BRUNGARD, DEBORAH A'
Subject: RE: [Rtg-yang-coord] [netmod] Requirements for I2RS protocol =
and I2RS interim (6/24/2015 at 10:00 - 11:30am ET)

=20

Hello Susan,

-          Topology model which is a composite of:

o   Generic topology model:  =
<https://datatracker.ietf.org/doc/draft-ietf-i2rs-yang-network-topo/> =
draft-ietf-i2rs-yang-network-topo-01=20

o   L3 topology model:  =
<https://datatracker.ietf.org/doc/draft-ietf-i2rs-yang-l3-topology/> =
draft-ietf-i2rs-yang-l3-topology-00=20

o   L2 topology model:  =
<https://datatracker.ietf.org/doc/draft-ietf-i2rs-yang-l2-network-topolog=
y/> draft-ietf-i2rs-yang-l2-network-topology-00=20

o   L1 Topology model: draft-zhang-i2rs-l1-topo-yang-model-01 (-02 =
released later this week).=20

o   Service topology model: draft-hares-i2rs-service-topo-yang-model-00 =
(released on Wednesday)

=20

At this time, none of the Topology models utilize Traffic engineering.  =
It is anticipated that these models will support traffic engineering.  =20

=20

Reading this , my question is whether there is intention for Traffic =
Engineering part of topology model to exploit/coordinate with Teas , and =
particularly with=20

 draft-liu-teas-yang-te-topo or to proceed with distinct contributions =
internal to I2RS.

=20

Thanks

Sergio

=20


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</o:shapelayout></xml><![endif]--></head><body lang=3DEN-US link=3Dblue =
vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Sergio: <o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Just in case you missed in the rest of the email threads: =
<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Yes =E2=80=93 I2RS plans to coordinate the topology model with the =
TEAS Topology model.=C2=A0 The work began with the authors last week, =
and will continue in a discussion of the TEAS And Topology authors next =
week (7/8) =C2=A0in a conference call, and at IETF on Sunday (7/19 from =
6-7pm). <o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>The I2RS WG will provide an update on the merging of these two =
models.=C2=A0 If you are a TEAS author, please let me know. =
=C2=A0=C2=A0If you wish to help on an I2RS Topology model, the I2RS =
working group would appreciate your review of any model. =
<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>I am personally working on the service layer model. =
<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Sue Hares <o:p></o:p></span></p><div><div =
style=3D'border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in'><p class=3DMsoNormal><b><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span>=
</b><span style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'> =
BELOTTI, SERGIO (SERGIO) [mailto:sergio.belotti@alcatel-lucent.com] =
<br><b>Sent:</b> Wednesday, July 01, 2015 5:28 AM<br><b>To:</b> Susan =
Hares; 'Mahesh Jethanandani'<br><b>Cc:</b> Rtg-yang-coord@ietf.org; =
i2rs@ietf.org; 'NETMOD Working Group'; 'Netconf'; 'BRUNGARD, DEBORAH =
A'<br><b>Subject:</b> RE: [Rtg-yang-coord] [netmod] Requirements for =
I2RS protocol and I2RS interim (6/24/2015 at 10:00 - 11:30am =
ET)<o:p></o:p></span></p></div></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Hello Susan,<o:p></o:p></span></p><div><div><blockquote =
style=3D'margin-top:5.0pt;margin-bottom:5.0pt'><div><div =
style=3D'margin-left:.5in'><p class=3DMsoNormal =
style=3D'text-indent:-.25in'><span class=3Dapple-converted-space><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>-</span></s=
pan><span class=3Dapple-converted-space><span =
style=3D'font-size:7.0pt'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;</span></span><span class=3Dapple-converted-space><span =
style=3D'font-size:11.5pt;font-family:"Calibri","sans-serif";color:#22222=
2;background:white'>Topology model which is a composite =
of:</span></span><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div><div style=3D'margin-left:1.0in'><p class=3DMsoNormal =
style=3D'text-indent:-.25in'><span class=3Dapple-converted-space><span =
style=3D'font-size:11.0pt;font-family:"Courier =
New","serif"'>o</span></span><span class=3Dapple-converted-space><span =
style=3D'font-size:7.0pt'>&nbsp;&nbsp;&nbsp;</span></span><span =
class=3Dapple-converted-space><span =
style=3D'font-size:11.5pt;font-family:"Calibri","sans-serif";color:#22222=
2;background:white'>Generic topology model:&nbsp;</span></span><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><a =
href=3D"https://datatracker.ietf.org/doc/draft-ietf-i2rs-yang-network-top=
o/"><span =
style=3D'font-size:11.5pt;color:#3D22B3;background:white;text-decoration:=
none'>draft-ietf-i2rs-yang-network-topo-01</span></a></span><span =
class=3Dapple-converted-space><span =
style=3D'font-size:11.5pt;font-family:"Calibri","sans-serif";color:#22222=
2;background:white'>&nbsp;</span></span><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div><div style=3D'margin-left:1.0in'><p class=3DMsoNormal =
style=3D'text-indent:-.25in'><span class=3Dapple-converted-space><span =
style=3D'font-size:11.0pt;font-family:"Courier =
New","serif"'>o</span></span><span class=3Dapple-converted-space><span =
style=3D'font-size:7.0pt'>&nbsp;&nbsp;&nbsp;</span></span><span =
class=3Dapple-converted-space><span =
style=3D'font-size:11.5pt;font-family:"Calibri","sans-serif";color:#22222=
2;background:white'>L3 topology model:</span></span><span =
class=3Dapple-converted-space><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;</spa=
n></span><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><a =
href=3D"https://datatracker.ietf.org/doc/draft-ietf-i2rs-yang-l3-topology=
/"><span =
style=3D'font-size:11.5pt;color:#3D22B3;background:#F9F9F9;text-decoratio=
n:none'>draft-ietf-i2rs-yang-l3-topology-00</span></a></span><span =
class=3Dapple-converted-space><span =
style=3D'font-size:11.5pt;font-family:"Calibri","sans-serif";color:#22222=
2;background:#F9F9F9'>&nbsp;</span></span><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div><div style=3D'margin-left:1.0in'><p class=3DMsoNormal =
style=3D'text-indent:-.25in'><span class=3Dapple-converted-space><span =
style=3D'font-size:11.0pt;font-family:"Courier =
New","serif"'>o</span></span><span class=3Dapple-converted-space><span =
style=3D'font-size:7.0pt'>&nbsp;&nbsp;&nbsp;</span></span><span =
class=3Dapple-converted-space><span =
style=3D'font-size:11.5pt;font-family:"Calibri","sans-serif";color:#22222=
2;background:white'>L2 topology model:&nbsp;</span></span><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><a =
href=3D"https://datatracker.ietf.org/doc/draft-ietf-i2rs-yang-l2-network-=
topology/"><span =
style=3D'font-size:11.5pt;color:#3D22B3;background:white;text-decoration:=
none'>draft-ietf-i2rs-yang-l2-network-topology-00</span></a></span><span =
class=3Dapple-converted-space><span =
style=3D'font-size:11.5pt;font-family:"Calibri","sans-serif";color:#22222=
2;background:white'>&nbsp;</span></span><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'><o:p></o:p>=
</span></p></div><div style=3D'margin-left:1.0in'><p class=3DMsoNormal =
style=3D'text-indent:-.25in'><span =
style=3D'font-size:11.0pt;font-family:"Courier =
New","serif"'>o</span><span style=3D'font-size:7.0pt'>&nbsp;&nbsp;<span =
class=3Dapple-converted-space>&nbsp;</span></span><span =
class=3Dapple-converted-space><span =
style=3D'font-size:11.5pt;font-family:"Calibri","sans-serif";color:#22222=
2;background:white'>L1 Topology model:</span></span><span =
class=3Dapple-converted-space><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;</spa=
n></span><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>draft-zhang=
-i2rs-l1-topo-yang-model-01 (-02 released later this week).<span =
class=3Dapple-converted-space>&nbsp;</span><o:p></o:p></span></p></div><d=
iv style=3D'margin-left:1.0in'><p class=3DMsoNormal =
style=3D'text-indent:-.25in'><span =
style=3D'font-size:11.0pt;font-family:"Courier =
New","serif"'>o</span><span style=3D'font-size:7.0pt'>&nbsp;&nbsp;<span =
class=3Dapple-converted-space>&nbsp;</span></span><span =
class=3Dapple-converted-space><span =
style=3D'font-size:11.5pt;font-family:"Calibri","sans-serif";color:#22222=
2;background:white'>Service topology model:</span></span><span =
class=3Dapple-converted-space><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;</spa=
n></span><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>draft-hares=
-i2rs-service-topo-yang-model-00 (released on =
Wednesday)<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>&nbsp;<o:p>=
</o:p></span></p></div><div><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:0in;margin-right:.5in;margin-bottom:0in;margi=
n-left:.5in;margin-bottom:.0001pt'><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif"'>At this =
time, none of the Topology models utilize Traffic engineering.&nbsp; It =
is anticipated that these models will support traffic engineering. =
&nbsp;</span> <o:p></o:p></p></div></div></blockquote></div><div><div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>Reading this , my question is whether there is =
intention for Traffic Engineering part of topology model to =
exploit/coordinate with Teas , and particularly with =
<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'color:#1F497D'>&nbsp;draft-liu-teas-yang-te-topo or to proceed =
with distinct contributions internal to I2RS.</span><span =
style=3D'font-family:"Courier New","serif"'><o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Thanks<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Sergio<o:p></o:p></span></p></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div></div></body></html>
------=_NextPart_000_01C9_01D0B5A6.6FF65E80--


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Date: Wed, 1 Jul 2015 20:41:51 -0400
Message-ID: <CA+YzgTsJOptCtNqqccsFxGR6y+-kua2dW6NBsPru4fZY4PxnOg@mail.gmail.com>
From: Vishnu Pavan Beeram <vishnupavan@gmail.com>
To: Susan Hares <shares@ndzh.com>
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Cc: Rtg-yang-coord@ietf.org, i2rs@ietf.org, "BRUNGARD, DEBORAH A" <db3546@att.com>, alex@cisco.com, Vishnu Pavan Beeram <vbeeram@juniper.net>, Alia Atlas <akatlas@gmail.com>, draft-ietf-teas-yang-te-topo@tools.ietf.com, Jeffrey Haas <jhaas@pfrc.org>, "Alvaro Retana \(aretana\)" <aretana@cisco.com>, Lou Berger <lberger@labn.net>
Subject: Re: [Rtg-yang-coord] [i2rs] Requirements for I2RS protocol and I2RS interim (6/24/2015 at 10:00 - 11:30am ET)
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--bcaec51d2b808ce8250519d9b42d
Content-Type: text/plain; charset=UTF-8

+ Alex
+ <te-topo-model> authors

Sue, Jeff,

The authors of the <te-topo-model> draft had a meeting today with one of
the authors (Alex) of the <network-topo-model> draft and discussed ways to
align the topo models. The consensus so far is that the <te-topo-model>
WILL augment the <network-topo-model>. There are some issues that need to
be worked out (mapping identifiers, termination-points), but those should
get resolved in due course of time.

I'll sync up with you (Sue) and coordinate a meeting between the authors of
the <te-topo-model> and the authors of the I2RS topo model(s) at the IETF
--- hopefully early in the week.

Regards,
-Pavan

On Wed, Jul 1, 2015 at 6:49 PM, Susan Hares <shares@ndzh.com> wrote:

> Lou and Jeffrey:
>
> On 7/22, I talked with the TEAS TE authors team.  They had concerns about
> how the I2RS was going to integrate the TEAS work.  I realized there are
> two
> different approaches to the models - and I expressed my  hope that we could
> have aligned/merged models.  I chatted with the I2RS topology draft
> authors,
> and I found that the authors had not yet begun to work on the TE models.
> The best plan is to try to get the TEAS authors and the I2RS Topology
> authors together at IETF 93 and get a plan together for migrating these
> teams together.
>
> I will send a few times out to teams this evening.   It would really help
> I2RS if the TEAS group would meet early in the week (or if the folks are at
> the hack-athon like I am we may meet Saturday night).  We could then try to
> give NETCONF our best insight on the TE additions.
>
>  In order to prepare for this TE/Non-TE merge, I2RS WG need to finalize the
> non-TE models in the topology.  Today's interim was target to firm up the
> Service and T1 topology models, but the T1 topology model will not be ready
> until IETF 93.  My message in June hoped that we would be to the TE models
> by IETF so that NETCONF would have our entire scope, but we will not be
> there by the beginning of IETF.   I2RS will be following up in August and
> September with Interims that focus on the TE models in I2RS Topology model.
>
> Do you have any other suggestions?
>
> Sue
>
>
> -----Original Message-----
> From: i2rs [mailto:i2rs-bounces@ietf.org] On Behalf Of Lou Berger
> Sent: Wednesday, July 01, 2015 11:39 AM
> To: Susan Hares; 'Jeffrey Haas'
> Cc: Rtg-yang-coord@ietf.org; i2rs@ietf.org; 'BRUNGARD, DEBORAH A'; Vishnu
> Pavan Beeram; 'Alvaro Retana (aretana)'; 'Alia Atlas'
> Subject: Re: [i2rs] [Rtg-yang-coord] Requirements for I2RS protocol and
> I2RS
> interim (6/24/2015 at 10:00 - 11:30am ET)
>
> > At this time, none of the Topology models utilize Traffic
> engineering.  It is anticipated that these models will support traffic
> engineering.
>
> Sue, Jeff,
>     Given some recent messages on the list, I thought it best to confirm
> we're all still on the same page.
>
> Based on our past discussions, it's my understanding that the work being
> done in TEAS (see draft-ietf-teas-yang-te-topo) will serve as the
> foundation
> for TE support in the I2RS models.  I complete agree that there are details
> on how the different topology models will integrate/mesh still needs to be
> worked out, and I assumed that this is what you/Sue were referring to
> above.
> -- But we will not have two sets of TE topology models.
>
> I believe that the authors of the respective drafts are already are working
> this.  (Pavan, my co-chair as well as coauthor of the TEAS yang model, can
> comment on this.)
>
> Please let me know if I missed/miss-understood something.
>
> Thanks,
> Lou
> (as TEAS WG co-chair)
> On 6/23/2015 2:19 PM, Susan Hares wrote:
> >
> > Netconf Working Group:
> >
> >
> >
> > The I2RS WG would like to pass you a set of requirements for the I2RS
> > protocol, and asks that you provide an analysis by IETF 93 on whether
> > NETCONF or RESTCONF can meet these requirements.   We expect that
> > these requirements may require changes to the either NETCONF or
> > RESTCONF.
> >
> >
> >
> > The I2RS architecture document (draft-ietf-i2rs-architecture-09
> > <https://datatracker.ietf.org/doc/draft-ietf-i2rs-architecture/>)
> > provides a high-level overview of the I2RS  protocol.  The I2RS has
> > compiled the following documents to provide the additional details on
> > the requirements for the protocols.
> >
> >
> >
> > 1)      draft-ietf-i2rs-ephemeral-state-00
> > <https://datatracker.ietf.org/doc/draft-ietf-i2rs-ephemeral-state/>
> >
> > 2)      draft-ietf-i2rs-pub-sub-requirements-02
> > <https://datatracker.ietf.org/doc/draft-ietf-i2rs-pub-sub-requirements
> > />
> >
> > 3)      draft-ietf-i2rs-traceability-03
> > <https://datatracker.ietf.org/doc/draft-ietf-i2rs-traceability/>
> >
> >
> >
> > The draft-ietf-i2rs-ephemeral-state-00 contains the results of the
> > discussion from the 6/10 interim and the top 10 requirements for I2RS.
> > In addition, the draft-ietf-i2rs-ephemeral-state-00 contains an set of
> > detailed requirements on how the I2RS WG sees the I2RS protocol
> > operating.  These detailed requirements are to be seen as suggestions
> > on what type of solution the I2RS WG would like to see, but I2RS WG is
> > asking the NETCONF WG to provide its best designed protocol.  Please
> > note as part of these detailed requirement the
> > draft-ietf-i2rs-ephemeral-states-00 contains the idea of using
> > metadata to record secondary identity.
> >
> >
> >
> > The I2RS protocol is driven by data-models.  The approved data models
> > for protocol independent services are:
> >
> > -          draft-ietf-i2rs-rib-data-model-00
> > <https://datatracker.ietf.org/doc/draft-ietf-i2rs-rib-data-model/>
> >
> > -          Filter-Based RIBS:  draft-kini-i2rs-fb-rib-data-model.00
> > (released later this week)
> >
> > -          Topology model which is a composite of:
> >
> > o   Generic topology model: draft-ietf-i2rs-yang-network-topo-01
> > <https://datatracker.ietf.org/doc/draft-ietf-i2rs-yang-network-topo/>
> >
> > o   L3 topology model: draft-ietf-i2rs-yang-l3-topology-00
> > <https://datatracker.ietf.org/doc/draft-ietf-i2rs-yang-l3-topology/>
> >
> > o   L2 topology model: draft-ietf-i2rs-yang-l2-network-topology-00
> > <https://datatracker.ietf.org/doc/draft-ietf-i2rs-yang-l2-network-topo
> > logy/>
> >
> > o   L1 Topology model: draft-zhang-i2rs-l1-topo-yang-model-01 (-02
> > released later this week).
> >
> > o   Service topology model:
> > draft-hares-i2rs-service-topo-yang-model-00 (released on Wednesday)
> >
> >
> >
> > At this time, none of the Topology models utilize Traffic engineering.
> > It is anticipated that these models will support traffic engineering.
> > Estimated rates of transfer and timing requirements for these modules
> > are at: http://trac.tools.ietf.org/wg/i2rs/trac/wiki - under the
> > protocol requirements table.
> >
> >
> >
> > We hope that NETCONF WG can provide some initial feedback on these
> > requirements by IETF 93 at the Tuesday I2RS session.   I2RS will use
> > the 6/24 interim at 10:00-11:30am ET  to provide a time for any
> > participate in the I2RS, netconf, or netmod group to ask additional
> > questions on these requirements.
> >
> >
> >
> > Sue Hares
> >
> >
> >
> > Interim time: 10:00-11:30am ET
> >
> > Date 6/24/2015
> >
> > Webex:
> >
> > https://ietf.webex.com/ietf/j.php?MTID=m4260bee7be61cb17b0008a3c52069d
> > 0f
> >
> >
> >
> > agenda:
> >
> >
> >
> > 10:00 - 10:05 - Bash Agenda
> >
> > 10:05 - 10:20- -  review of requirements from
> >
> > draft-ietf-i2rs-ephemeral-state-00
> >
> > draft-ietf-i2rs-pub-sub-requirements-02
> >
> > draft-ietf-i2rs-traceability-03
> >
> > Timing requirements
> >
> >
> >
> > 10:20 - 10:30    Review of requirements for mutual authentication,
> >
> > and transaction in  draft-hares-auth-trans-01 requirements
> >
> >
> >
> > 10:30- 11:30     Open discussion for I2RS Requirements
> >
> >
> >
> > Proceedings and slides can be found at:
> >
> > http://www.ietf.org/proceedings/interim/2015/06/24/i2rs/proceedings.ht
> > ml
> >
> >
> >
> > Sue Hares
> >
> >
> >
> >
> >
> >
> >
> > _______________________________________________
> > Rtg-yang-coord mailing list
> > Rtg-yang-coord@ietf.org
> > https://www.ietf.org/mailman/listinfo/rtg-yang-coord
>
>
> _______________________________________________
> i2rs mailing list
> i2rs@ietf.org
> https://www.ietf.org/mailman/listinfo/i2rs
>
> _______________________________________________
> i2rs mailing list
> i2rs@ietf.org
> https://www.ietf.org/mailman/listinfo/i2rs
>

--bcaec51d2b808ce8250519d9b42d
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div><div>+ Alex<br></div><div>+ &lt;te-topo-model&gt; aut=
hors<br><br></div><div>Sue, Jeff,<br><br></div>The authors of the &lt;te-to=
po-model&gt; draft had a meeting today with one of the authors (Alex) of th=
e &lt;network-topo-model&gt; draft and discussed ways to align the topo mod=
els. The consensus so far is that the &lt;te-topo-model&gt; WILL augment th=
e &lt;network-topo-model&gt;. There are some issues that need to be worked =
out (mapping identifiers, termination-points), but those should get resolve=
d in due course of time. <br><br>I&#39;ll sync up with you (Sue) and coordi=
nate a meeting between the authors of the &lt;te-topo-model&gt; and the aut=
hors of the I2RS topo model(s) at the IETF --- hopefully early in the week.=
 <br><br></div><div>Regards,<br></div><div>-Pavan<br></div><div class=3D"gm=
ail_extra"><br><div class=3D"gmail_quote">On Wed, Jul 1, 2015 at 6:49 PM, S=
usan Hares <span dir=3D"ltr">&lt;<a href=3D"mailto:shares@ndzh.com" target=
=3D"_blank">shares@ndzh.com</a>&gt;</span> wrote:<br><blockquote class=3D"g=
mail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-l=
eft:1ex">Lou and Jeffrey:<br>
<br>
On 7/22, I talked with the TEAS TE authors team.=C2=A0 They had concerns ab=
out<br>
how the I2RS was going to integrate the TEAS work.=C2=A0 I realized there a=
re two<br>
different approaches to the models - and I expressed my=C2=A0 hope that we =
could<br>
have aligned/merged models.=C2=A0 I chatted with the I2RS topology draft au=
thors,<br>
and I found that the authors had not yet begun to work on the TE models.<br=
>
The best plan is to try to get the TEAS authors and the I2RS Topology<br>
authors together at IETF 93 and get a plan together for migrating these<br>
teams together.<br>
<br>
I will send a few times out to teams this evening.=C2=A0 =C2=A0It would rea=
lly help<br>
I2RS if the TEAS group would meet early in the week (or if the folks are at=
<br>
the hack-athon like I am we may meet Saturday night).=C2=A0 We could then t=
ry to<br>
give NETCONF our best insight on the TE additions.<br>
<br>
=C2=A0In order to prepare for this TE/Non-TE merge, I2RS WG need to finaliz=
e the<br>
non-TE models in the topology.=C2=A0 Today&#39;s interim was target to firm=
 up the<br>
Service and T1 topology models, but the T1 topology model will not be ready=
<br>
until IETF 93.=C2=A0 My message in June hoped that we would be to the TE mo=
dels<br>
by IETF so that NETCONF would have our entire scope, but we will not be<br>
there by the beginning of IETF.=C2=A0 =C2=A0I2RS will be following up in Au=
gust and<br>
September with Interims that focus on the TE models in I2RS Topology model.=
<br>
<br>
Do you have any other suggestions?<br>
<br>
Sue<br>
<span class=3D"im HOEnZb"><br>
<br>
-----Original Message-----<br>
From: i2rs [mailto:<a href=3D"mailto:i2rs-bounces@ietf.org">i2rs-bounces@ie=
tf.org</a>] On Behalf Of Lou Berger<br>
Sent: Wednesday, July 01, 2015 11:39 AM<br>
To: Susan Hares; &#39;Jeffrey Haas&#39;<br>
Cc: <a href=3D"mailto:Rtg-yang-coord@ietf.org">Rtg-yang-coord@ietf.org</a>;=
 <a href=3D"mailto:i2rs@ietf.org">i2rs@ietf.org</a>; &#39;BRUNGARD, DEBORAH=
 A&#39;; Vishnu<br>
Pavan Beeram; &#39;Alvaro Retana (aretana)&#39;; &#39;Alia Atlas&#39;<br>
Subject: Re: [i2rs] [Rtg-yang-coord] Requirements for I2RS protocol and I2R=
S<br>
interim (6/24/2015 at 10:00 - 11:30am ET)<br>
<br>
</span><div class=3D"HOEnZb"><div class=3D"h5">&gt; At this time, none of t=
he Topology models utilize Traffic<br>
engineering.=C2=A0 It is anticipated that these models will support traffic=
<br>
engineering.<br>
<br>
Sue, Jeff,<br>
=C2=A0 =C2=A0 Given some recent messages on the list, I thought it best to =
confirm<br>
we&#39;re all still on the same page.<br>
<br>
Based on our past discussions, it&#39;s my understanding that the work bein=
g<br>
done in TEAS (see draft-ietf-teas-yang-te-topo) will serve as the foundatio=
n<br>
for TE support in the I2RS models.=C2=A0 I complete agree that there are de=
tails<br>
on how the different topology models will integrate/mesh still needs to be<=
br>
worked out, and I assumed that this is what you/Sue were referring to above=
.<br>
-- But we will not have two sets of TE topology models.<br>
<br>
I believe that the authors of the respective drafts are already are working=
<br>
this.=C2=A0 (Pavan, my co-chair as well as coauthor of the TEAS yang model,=
 can<br>
comment on this.)<br>
<br>
Please let me know if I missed/miss-understood something.<br>
<br>
Thanks,<br>
Lou<br>
(as TEAS WG co-chair)<br>
On 6/23/2015 2:19 PM, Susan Hares wrote:<br>
&gt;<br>
&gt; Netconf Working Group:<br>
&gt;<br>
&gt;<br>
&gt;<br>
&gt; The I2RS WG would like to pass you a set of requirements for the I2RS<=
br>
&gt; protocol, and asks that you provide an analysis by IETF 93 on whether<=
br>
&gt; NETCONF or RESTCONF can meet these requirements.=C2=A0 =C2=A0We expect=
 that<br>
&gt; these requirements may require changes to the either NETCONF or<br>
&gt; RESTCONF.<br>
&gt;<br>
&gt;<br>
&gt;<br>
&gt; The I2RS architecture document (draft-ietf-i2rs-architecture-09<br>
&gt; &lt;<a href=3D"https://datatracker.ietf.org/doc/draft-ietf-i2rs-archit=
ecture/" rel=3D"noreferrer" target=3D"_blank">https://datatracker.ietf.org/=
doc/draft-ietf-i2rs-architecture/</a>&gt;)<br>
&gt; provides a high-level overview of the I2RS=C2=A0 protocol.=C2=A0 The I=
2RS has<br>
&gt; compiled the following documents to provide the additional details on<=
br>
&gt; the requirements for the protocols.<br>
&gt;<br>
&gt;<br>
&gt;<br>
&gt; 1)=C2=A0 =C2=A0 =C2=A0 draft-ietf-i2rs-ephemeral-state-00<br>
&gt; &lt;<a href=3D"https://datatracker.ietf.org/doc/draft-ietf-i2rs-epheme=
ral-state/" rel=3D"noreferrer" target=3D"_blank">https://datatracker.ietf.o=
rg/doc/draft-ietf-i2rs-ephemeral-state/</a>&gt;<br>
&gt;<br>
&gt; 2)=C2=A0 =C2=A0 =C2=A0 draft-ietf-i2rs-pub-sub-requirements-02<br>
&gt; &lt;<a href=3D"https://datatracker.ietf.org/doc/draft-ietf-i2rs-pub-su=
b-requirements" rel=3D"noreferrer" target=3D"_blank">https://datatracker.ie=
tf.org/doc/draft-ietf-i2rs-pub-sub-requirements</a><br>
&gt; /&gt;<br>
&gt;<br>
&gt; 3)=C2=A0 =C2=A0 =C2=A0 draft-ietf-i2rs-traceability-03<br>
&gt; &lt;<a href=3D"https://datatracker.ietf.org/doc/draft-ietf-i2rs-tracea=
bility/" rel=3D"noreferrer" target=3D"_blank">https://datatracker.ietf.org/=
doc/draft-ietf-i2rs-traceability/</a>&gt;<br>
&gt;<br>
&gt;<br>
&gt;<br>
&gt; The draft-ietf-i2rs-ephemeral-state-00 contains the results of the<br>
&gt; discussion from the 6/10 interim and the top 10 requirements for I2RS.=
<br>
&gt; In addition, the draft-ietf-i2rs-ephemeral-state-00 contains an set of=
<br>
&gt; detailed requirements on how the I2RS WG sees the I2RS protocol<br>
&gt; operating.=C2=A0 These detailed requirements are to be seen as suggest=
ions<br>
&gt; on what type of solution the I2RS WG would like to see, but I2RS WG is=
<br>
&gt; asking the NETCONF WG to provide its best designed protocol.=C2=A0 Ple=
ase<br>
&gt; note as part of these detailed requirement the<br>
&gt; draft-ietf-i2rs-ephemeral-states-00 contains the idea of using<br>
&gt; metadata to record secondary identity.<br>
&gt;<br>
&gt;<br>
&gt;<br>
&gt; The I2RS protocol is driven by data-models.=C2=A0 The approved data mo=
dels<br>
&gt; for protocol independent services are:<br>
&gt;<br>
&gt; -=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 draft-ietf-i2rs-rib-data-model-00<=
br>
&gt; &lt;<a href=3D"https://datatracker.ietf.org/doc/draft-ietf-i2rs-rib-da=
ta-model/" rel=3D"noreferrer" target=3D"_blank">https://datatracker.ietf.or=
g/doc/draft-ietf-i2rs-rib-data-model/</a>&gt;<br>
&gt;<br>
&gt; -=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 Filter-Based RIBS:=C2=A0 draft-kin=
i-i2rs-fb-rib-data-model.00<br>
&gt; (released later this week)<br>
&gt;<br>
&gt; -=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 Topology model which is a composit=
e of:<br>
&gt;<br>
&gt; o=C2=A0 =C2=A0Generic topology model: draft-ietf-i2rs-yang-network-top=
o-01<br>
&gt; &lt;<a href=3D"https://datatracker.ietf.org/doc/draft-ietf-i2rs-yang-n=
etwork-topo/" rel=3D"noreferrer" target=3D"_blank">https://datatracker.ietf=
.org/doc/draft-ietf-i2rs-yang-network-topo/</a>&gt;<br>
&gt;<br>
&gt; o=C2=A0 =C2=A0L3 topology model: draft-ietf-i2rs-yang-l3-topology-00<b=
r>
&gt; &lt;<a href=3D"https://datatracker.ietf.org/doc/draft-ietf-i2rs-yang-l=
3-topology/" rel=3D"noreferrer" target=3D"_blank">https://datatracker.ietf.=
org/doc/draft-ietf-i2rs-yang-l3-topology/</a>&gt;<br>
&gt;<br>
&gt; o=C2=A0 =C2=A0L2 topology model: draft-ietf-i2rs-yang-l2-network-topol=
ogy-00<br>
&gt; &lt;<a href=3D"https://datatracker.ietf.org/doc/draft-ietf-i2rs-yang-l=
2-network-topo" rel=3D"noreferrer" target=3D"_blank">https://datatracker.ie=
tf.org/doc/draft-ietf-i2rs-yang-l2-network-topo</a><br>
&gt; logy/&gt;<br>
&gt;<br>
&gt; o=C2=A0 =C2=A0L1 Topology model: draft-zhang-i2rs-l1-topo-yang-model-0=
1 (-02<br>
&gt; released later this week).<br>
&gt;<br>
&gt; o=C2=A0 =C2=A0Service topology model:<br>
&gt; draft-hares-i2rs-service-topo-yang-model-00 (released on Wednesday)<br=
>
&gt;<br>
&gt;<br>
&gt;<br>
&gt; At this time, none of the Topology models utilize Traffic engineering.=
<br>
&gt; It is anticipated that these models will support traffic engineering.<=
br>
&gt; Estimated rates of transfer and timing requirements for these modules<=
br>
&gt; are at: <a href=3D"http://trac.tools.ietf.org/wg/i2rs/trac/wiki" rel=
=3D"noreferrer" target=3D"_blank">http://trac.tools.ietf.org/wg/i2rs/trac/w=
iki</a> - under the<br>
&gt; protocol requirements table.<br>
&gt;<br>
&gt;<br>
&gt;<br>
&gt; We hope that NETCONF WG can provide some initial feedback on these<br>
&gt; requirements by IETF 93 at the Tuesday I2RS session.=C2=A0 =C2=A0I2RS =
will use<br>
&gt; the 6/24 interim at 10:00-11:30am ET=C2=A0 to provide a time for any<b=
r>
&gt; participate in the I2RS, netconf, or netmod group to ask additional<br=
>
&gt; questions on these requirements.<br>
&gt;<br>
&gt;<br>
&gt;<br>
&gt; Sue Hares<br>
&gt;<br>
&gt;<br>
&gt;<br>
&gt; Interim time: 10:00-11:30am ET<br>
&gt;<br>
&gt; Date 6/24/2015<br>
&gt;<br>
&gt; Webex:<br>
&gt;<br>
&gt; <a href=3D"https://ietf.webex.com/ietf/j.php?MTID=3Dm4260bee7be61cb17b=
0008a3c52069d" rel=3D"noreferrer" target=3D"_blank">https://ietf.webex.com/=
ietf/j.php?MTID=3Dm4260bee7be61cb17b0008a3c52069d</a><br>
&gt; 0f<br>
&gt;<br>
&gt;<br>
&gt;<br>
&gt; agenda:<br>
&gt;<br>
&gt;<br>
&gt;<br>
&gt; 10:00 - 10:05 - Bash Agenda<br>
&gt;<br>
&gt; 10:05 - 10:20- -=C2=A0 review of requirements from<br>
&gt;<br>
&gt; draft-ietf-i2rs-ephemeral-state-00<br>
&gt;<br>
&gt; draft-ietf-i2rs-pub-sub-requirements-02<br>
&gt;<br>
&gt; draft-ietf-i2rs-traceability-03<br>
&gt;<br>
&gt; Timing requirements<br>
&gt;<br>
&gt;<br>
&gt;<br>
&gt; 10:20 - 10:30=C2=A0 =C2=A0 Review of requirements for mutual authentic=
ation,<br>
&gt;<br>
&gt; and transaction in=C2=A0 draft-hares-auth-trans-01 requirements<br>
&gt;<br>
&gt;<br>
&gt;<br>
&gt; 10:30- 11:30=C2=A0 =C2=A0 =C2=A0Open discussion for I2RS Requirements<=
br>
&gt;<br>
&gt;<br>
&gt;<br>
&gt; Proceedings and slides can be found at:<br>
&gt;<br>
&gt; <a href=3D"http://www.ietf.org/proceedings/interim/2015/06/24/i2rs/pro=
ceedings.ht" rel=3D"noreferrer" target=3D"_blank">http://www.ietf.org/proce=
edings/interim/2015/06/24/i2rs/proceedings.ht</a><br>
&gt; ml<br>
&gt;<br>
&gt;<br>
&gt;<br>
&gt; Sue Hares<br>
&gt;<br>
&gt;<br>
&gt;<br>
&gt;<br>
&gt;<br>
&gt;<br>
&gt;<br>
&gt; _______________________________________________<br>
&gt; Rtg-yang-coord mailing list<br>
&gt; <a href=3D"mailto:Rtg-yang-coord@ietf.org">Rtg-yang-coord@ietf.org</a>=
<br>
&gt; <a href=3D"https://www.ietf.org/mailman/listinfo/rtg-yang-coord" rel=
=3D"noreferrer" target=3D"_blank">https://www.ietf.org/mailman/listinfo/rtg=
-yang-coord</a><br>
<br>
<br>
_______________________________________________<br>
</div></div><div class=3D"HOEnZb"><div class=3D"h5">i2rs mailing list<br>
<a href=3D"mailto:i2rs@ietf.org">i2rs@ietf.org</a><br>
<a href=3D"https://www.ietf.org/mailman/listinfo/i2rs" rel=3D"noreferrer" t=
arget=3D"_blank">https://www.ietf.org/mailman/listinfo/i2rs</a><br>
<br>
_______________________________________________<br>
i2rs mailing list<br>
<a href=3D"mailto:i2rs@ietf.org">i2rs@ietf.org</a><br>
<a href=3D"https://www.ietf.org/mailman/listinfo/i2rs" rel=3D"noreferrer" t=
arget=3D"_blank">https://www.ietf.org/mailman/listinfo/i2rs</a><br>
</div></div></blockquote></div><br></div></div>

--bcaec51d2b808ce8250519d9b42d--


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To: Vishnu Pavan Beeram <vishnupavan@gmail.com>, Susan Hares <shares@ndzh.com>
Thread-Topic: [i2rs] [Rtg-yang-coord] Requirements for I2RS protocol and I2RS interim (6/24/2015 at 10:00 - 11:30am ET)
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Subject: Re: [Rtg-yang-coord] [i2rs] Requirements for I2RS protocol and I2RS interim (6/24/2015 at 10:00 - 11:30am ET)
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Cc: Rtg-yang-coord@ietf.org, 'NETMOD Working Group' <netmod@ietf.org>, "'BRUNGARD, DEBORAH A'" <db3546@att.com>, 'Alia Atlas' <akatlas@gmail.com>, 'Netconf' <netconf@ietf.org>, "'Benoit Claise \(bclaise\)'" <bclaise@cisco.com>, "'Alvaro Retana \(aretana\)'" <aretana@cisco.com>, 'Lou Berger' <lberger@labn.net>
Subject: Re: [Rtg-yang-coord] [i2rs] [netmod] Requirements for I2RS protocol and I2RS interim (6/24/2015 at 10:00 - 11:30am ET)
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Mahesh:=20

=20

I=E2=80=99m trying to schedule a set of meeting before I2RS presents at =
NETCONF so it would be helpful to know when the I2RS session would be =
schedule in NETCONF.=20

=20

Is I2RS requirements presentation at the Tuesday meeting with Netconf =
[15:20 =E2=80=93 17:20] which is just before the I2RS meeting [17:40- =
18:40].  This back-to-back session would allow us to encourage people to =
hear the presentations in NETCONF and then come to I2RS to discuss any =
open issues for I2RS. =20

=20

Do you think we should present the NETMOD requirements before the =
NETCONF requirements?  I can request a brief presentation in NETMOD.  I =
am working on a draft to express I2RS requirements for netmod.  The =
requirements for NETMO will not be an I2RS WG document =E2=80=93 only a =
chair=E2=80=99s observations on the differences between the yang =
modules.=20

=20

Sue Hares=20

=20

From: i2rs [mailto:i2rs-bounces@ietf.org] On Behalf Of Mahesh =
Jethanandani
Sent: Thursday, July 02, 2015 5:06 PM
To: Eric Voit (evoit)
Cc: Rtg-yang-coord@ietf.org; i2rs@ietf.org; NETMOD Working Group; =
BRUNGARD, DEBORAH A; Alexander Clemm (alex); Netconf; Susan Hares
Subject: Re: [i2rs] [Rtg-yang-coord] [netmod] Requirements for I2RS =
protocol and I2RS interim (6/24/2015 at 10:00 - 11:30am ET)

=20

=20

On Jun 30, 2015, at 3:13 PM, Eric Voit (evoit) <evoit@cisco.com> wrote:

=20

What might be interesting for a NETCONF speaking slot is an analysis of =
what requirements from =
=E2=80=9Cdraft-ietf-i2rs-pub-sub-requirements=E2=80=9D are met by =
=E2=80=9Cdraft-clemm-netconf-yang-push=E2=80=9D.=20

=20

Susan or somebody from i2rs WG can decide whether the suggested =
presentation would help clarify i2rs requirements to NETCONF. From a =
personal perspective it would certainly help to have examples of how the =
requirements could be met.

=20

Cheers.

=20

Mahesh Jethanandani

mjethanandani@gmail.com

=20

=20

=20


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vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Mahesh: <o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>I=E2=80=99m trying to schedule a set of meeting before I2RS presents =
at NETCONF so it would be helpful to know when the I2RS session would be =
schedule in NETCONF. <o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Is I2RS requirements presentation at the Tuesday meeting with Netconf =
[15:20 =E2=80=93 17:20] which is just before the I2RS meeting [17:40- =
18:40]. =C2=A0This back-to-back session would allow us to encourage =
people to hear the presentations in NETCONF and then come to I2RS to =
discuss any open issues for I2RS.=C2=A0 <o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Do you think we should present the NETMOD requirements before the =
NETCONF requirements? =C2=A0I can request a brief presentation in =
NETMOD.=C2=A0 I am working on a draft to express I2RS requirements for =
netmod.=C2=A0 The requirements for NETMO will not be an I2RS WG document =
=E2=80=93 only a chair=E2=80=99s observations on the differences between =
the yang modules. <o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Sue Hares <o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><div><div =
style=3D'border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in'><p class=3DMsoNormal><b><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span>=
</b><span style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'> =
i2rs [mailto:i2rs-bounces@ietf.org] <b>On Behalf Of </b>Mahesh =
Jethanandani<br><b>Sent:</b> Thursday, July 02, 2015 5:06 =
PM<br><b>To:</b> Eric Voit (evoit)<br><b>Cc:</b> =
Rtg-yang-coord@ietf.org; i2rs@ietf.org; NETMOD Working Group; BRUNGARD, =
DEBORAH A; Alexander Clemm (alex); Netconf; Susan =
Hares<br><b>Subject:</b> Re: [i2rs] [Rtg-yang-coord] [netmod] =
Requirements for I2RS protocol and I2RS interim (6/24/2015 at 10:00 - =
11:30am ET)<o:p></o:p></span></p></div></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><div><blockquote =
style=3D'margin-top:5.0pt;margin-bottom:5.0pt'><div><p =
class=3DMsoNormal>On Jun 30, 2015, at 3:13 PM, Eric Voit (evoit) &lt;<a =
href=3D"mailto:evoit@cisco.com">evoit@cisco.com</a>&gt; =
wrote:<o:p></o:p></p></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><div><p class=3DMsoNormal><span =
style=3D'font-size:11.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>What might be interesting for a NETCONF speaking slot is an analysis =
of what requirements from =
=E2=80=9Cdraft-ietf-i2rs-pub-sub-requirements=E2=80=9D are met by =
=E2=80=9Cdraft-clemm-netconf-yang-push=E2=80=9D.&nbsp;</span><o:p></o:p><=
/p></div></blockquote><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div><div><p =
class=3DMsoNormal>Susan or somebody from i2rs WG can decide whether the =
suggested presentation would help clarify i2rs requirements to NETCONF. =
>From a personal perspective it would certainly help to have examples of =
how the requirements could be met.<o:p></o:p></p></div><div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div><div><p =
class=3DMsoNormal>Cheers.<o:p></o:p></p></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><div><div><p =
class=3DMsoNormal>Mahesh Jethanandani<o:p></o:p></p></div><div><p =
class=3DMsoNormal><a =
href=3D"mailto:mjethanandani@gmail.com">mjethanandani@gmail.com</a><o:p><=
/o:p></p></div><div><p class=3DMsoNormal><o:p>&nbsp;</o:p></p></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p></div></body></html>
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Subject: Re: [Rtg-yang-coord] [i2rs] Requirements for I2RS protocol and I2RS interim (6/24/2015 at 10:00 - 11:30am ET)
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From nobody Mon Jul  6 08:27:37 2015
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Subject: Re: [Rtg-yang-coord] [i2rs] Requirements for I2RS protocol and I2RS interim (6/24/2015 at 10:00 - 11:30am ET)
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Xian:

=20

The time will be 6:00pm-7:00pm (18:00-19:00) on Sunday 7/19/2015 in =
Prague. =20

=20

I=E2=80=99m also trying to lock down a conference call at 11:00am-12:00 =
ET (8:00am-12:00pm PT, 23:00-23:59 Beijing) on 7/8 for the TEAS authors =
and the topology authors.  By this time I will have reviewed the TEAS =
and I2RS drafts submitted, and I will have questions for the authors.=20

=20

Please let me know if you can attend these two meetings.

=20

Sue=20

=20

=20

From: i2rs [mailto:i2rs-bounces@ietf.org] On Behalf Of Zhangxian (Xian)
Sent: Thursday, July 02, 2015 11:47 PM
To: Susan Hares; Vishnu Pavan Beeram; Lou Berger; =
draft-ietf-teas-yang-te-topo@tools.ietf.com
Cc: Rtg-yang-coord@ietf.org; i2rs@ietf.org; BRUNGARD, DEBORAH A; =
alex@cisco.com; Alia Atlas; Jeffrey Haas; Alvaro Retana (aretana)
Subject: Re: [i2rs] [Rtg-yang-coord] Requirements for I2RS protocol and =
I2RS interim (6/24/2015 at 10:00 - 11:30am ET)

=20

Hi,=20

=20

   I would echo what Lou said in another email:

=20

=E2=80=9CWe should probably announce the time and place where the =
authors will be meeting in Prague so that others who are interested can =
show.=E2=80=9D

=20

I am definitely interested.=20

=20

Another suggestion is: can we try to draw a relationship diagram to see =
how the topology related models fits together (irrespective of which WG =
should work on what)? In the <network-topo-model> draft, there is =
already a diagram which might be helpful as a starting point.=20

=20

Regards,
Xian

=20

From: i2rs [mailto:i2rs-bounces@ietf.org] On Behalf Of Vishnu Pavan =
Beeram
Sent: 2015=E5=B9=B47=E6=9C=882=E6=97=A5 8:42
To: Susan Hares
Cc: Rtg-yang-coord@ietf.org; i2rs@ietf.org; BRUNGARD, DEBORAH A; =
alex@cisco.com; Vishnu Pavan Beeram; Alia Atlas; =
draft-ietf-teas-yang-te-topo@tools.ietf.com; Jeffrey Haas; Alvaro Retana =
(aretana); Lou Berger
Subject: Re: [i2rs] [Rtg-yang-coord] Requirements for I2RS protocol and =
I2RS interim (6/24/2015 at 10:00 - 11:30am ET)

=20

+ Alex

+ <te-topo-model> authors

Sue, Jeff,

The authors of the <te-topo-model> draft had a meeting today with one of =
the authors (Alex) of the <network-topo-model> draft and discussed ways =
to align the topo models. The consensus so far is that the =
<te-topo-model> WILL augment the <network-topo-model>. There are some =
issues that need to be worked out (mapping identifiers, =
termination-points), but those should get resolved in due course of =
time.=20

I'll sync up with you (Sue) and coordinate a meeting between the authors =
of the <te-topo-model> and the authors of the I2RS topo model(s) at the =
IETF --- hopefully early in the week.=20

Regards,

-Pavan

=20

On Wed, Jul 1, 2015 at 6:49 PM, Susan Hares <shares@ndzh.com> wrote:

Lou and Jeffrey:

On 7/22, I talked with the TEAS TE authors team.  They had concerns =
about
how the I2RS was going to integrate the TEAS work.  I realized there are =
two
different approaches to the models - and I expressed my  hope that we =
could
have aligned/merged models.  I chatted with the I2RS topology draft =
authors,
and I found that the authors had not yet begun to work on the TE models.
The best plan is to try to get the TEAS authors and the I2RS Topology
authors together at IETF 93 and get a plan together for migrating these
teams together.

I will send a few times out to teams this evening.   It would really =
help
I2RS if the TEAS group would meet early in the week (or if the folks are =
at
the hack-athon like I am we may meet Saturday night).  We could then try =
to
give NETCONF our best insight on the TE additions.

 In order to prepare for this TE/Non-TE merge, I2RS WG need to finalize =
the
non-TE models in the topology.  Today's interim was target to firm up =
the
Service and T1 topology models, but the T1 topology model will not be =
ready
until IETF 93.  My message in June hoped that we would be to the TE =
models
by IETF so that NETCONF would have our entire scope, but we will not be
there by the beginning of IETF.   I2RS will be following up in August =
and
September with Interims that focus on the TE models in I2RS Topology =
model.

Do you have any other suggestions?

Sue


-----Original Message-----
From: i2rs [mailto:i2rs-bounces@ietf.org] On Behalf Of Lou Berger
Sent: Wednesday, July 01, 2015 11:39 AM
To: Susan Hares; 'Jeffrey Haas'
Cc: Rtg-yang-coord@ietf.org; i2rs@ietf.org; 'BRUNGARD, DEBORAH A'; =
Vishnu
Pavan Beeram; 'Alvaro Retana (aretana)'; 'Alia Atlas'
Subject: Re: [i2rs] [Rtg-yang-coord] Requirements for I2RS protocol and =
I2RS
interim (6/24/2015 at 10:00 - 11:30am ET)

> At this time, none of the Topology models utilize Traffic
engineering.  It is anticipated that these models will support traffic
engineering.

Sue, Jeff,
    Given some recent messages on the list, I thought it best to confirm
we're all still on the same page.

Based on our past discussions, it's my understanding that the work being
done in TEAS (see draft-ietf-teas-yang-te-topo) will serve as the =
foundation
for TE support in the I2RS models.  I complete agree that there are =
details
on how the different topology models will integrate/mesh still needs to =
be
worked out, and I assumed that this is what you/Sue were referring to =
above.
-- But we will not have two sets of TE topology models.

I believe that the authors of the respective drafts are already are =
working
this.  (Pavan, my co-chair as well as coauthor of the TEAS yang model, =
can
comment on this.)

Please let me know if I missed/miss-understood something.

Thanks,
Lou
(as TEAS WG co-chair)
On 6/23/2015 2:19 PM, Susan Hares wrote:
>
> Netconf Working Group:
>
>
>
> The I2RS WG would like to pass you a set of requirements for the I2RS
> protocol, and asks that you provide an analysis by IETF 93 on whether
> NETCONF or RESTCONF can meet these requirements.   We expect that
> these requirements may require changes to the either NETCONF or
> RESTCONF.
>
>
>
> The I2RS architecture document (draft-ietf-i2rs-architecture-09
> <https://datatracker.ietf.org/doc/draft-ietf-i2rs-architecture/>)
> provides a high-level overview of the I2RS  protocol.  The I2RS has
> compiled the following documents to provide the additional details on
> the requirements for the protocols.
>
>
>
> 1)      draft-ietf-i2rs-ephemeral-state-00
> <https://datatracker.ietf.org/doc/draft-ietf-i2rs-ephemeral-state/>
>
> 2)      draft-ietf-i2rs-pub-sub-requirements-02
> <https://datatracker.ietf.org/doc/draft-ietf-i2rs-pub-sub-requirements
> />
>
> 3)      draft-ietf-i2rs-traceability-03
> <https://datatracker.ietf.org/doc/draft-ietf-i2rs-traceability/>
>
>
>
> The draft-ietf-i2rs-ephemeral-state-00 contains the results of the
> discussion from the 6/10 interim and the top 10 requirements for I2RS.
> In addition, the draft-ietf-i2rs-ephemeral-state-00 contains an set of
> detailed requirements on how the I2RS WG sees the I2RS protocol
> operating.  These detailed requirements are to be seen as suggestions
> on what type of solution the I2RS WG would like to see, but I2RS WG is
> asking the NETCONF WG to provide its best designed protocol.  Please
> note as part of these detailed requirement the
> draft-ietf-i2rs-ephemeral-states-00 contains the idea of using
> metadata to record secondary identity.
>
>
>
> The I2RS protocol is driven by data-models.  The approved data models
> for protocol independent services are:
>
> -          draft-ietf-i2rs-rib-data-model-00
> <https://datatracker.ietf.org/doc/draft-ietf-i2rs-rib-data-model/>
>
> -          Filter-Based RIBS:  draft-kini-i2rs-fb-rib-data-model.00
> (released later this week)
>
> -          Topology model which is a composite of:
>
> o   Generic topology model: draft-ietf-i2rs-yang-network-topo-01
> <https://datatracker.ietf.org/doc/draft-ietf-i2rs-yang-network-topo/>
>
> o   L3 topology model: draft-ietf-i2rs-yang-l3-topology-00
> <https://datatracker.ietf.org/doc/draft-ietf-i2rs-yang-l3-topology/>
>
> o   L2 topology model: draft-ietf-i2rs-yang-l2-network-topology-00
> <https://datatracker.ietf.org/doc/draft-ietf-i2rs-yang-l2-network-topo
> logy/>
>
> o   L1 Topology model: draft-zhang-i2rs-l1-topo-yang-model-01 (-02
> released later this week).
>
> o   Service topology model:
> draft-hares-i2rs-service-topo-yang-model-00 (released on Wednesday)
>
>
>
> At this time, none of the Topology models utilize Traffic engineering.
> It is anticipated that these models will support traffic engineering.
> Estimated rates of transfer and timing requirements for these modules
> are at: http://trac.tools.ietf.org/wg/i2rs/trac/wiki - under the
> protocol requirements table.
>
>
>
> We hope that NETCONF WG can provide some initial feedback on these
> requirements by IETF 93 at the Tuesday I2RS session.   I2RS will use
> the 6/24 interim at 10:00-11:30am ET  to provide a time for any
> participate in the I2RS, netconf, or netmod group to ask additional
> questions on these requirements.
>
>
>
> Sue Hares
>
>
>
> Interim time: 10:00-11:30am ET
>
> Date 6/24/2015
>
> Webex:
>
> =
https://ietf.webex.com/ietf/j.php?MTID=3Dm4260bee7be61cb17b0008a3c52069d
> 0f
>
>
>
> agenda:
>
>
>
> 10:00 - 10:05 - Bash Agenda
>
> 10:05 - 10:20- -  review of requirements from
>
> draft-ietf-i2rs-ephemeral-state-00
>
> draft-ietf-i2rs-pub-sub-requirements-02
>
> draft-ietf-i2rs-traceability-03
>
> Timing requirements
>
>
>
> 10:20 - 10:30    Review of requirements for mutual authentication,
>
> and transaction in  draft-hares-auth-trans-01 requirements
>
>
>
> 10:30- 11:30     Open discussion for I2RS Requirements
>
>
>
> Proceedings and slides can be found at:
>
> http://www.ietf.org/proceedings/interim/2015/06/24/i2rs/proceedings.ht
> ml
>
>
>
> Sue Hares
>
>
>
>
>
>
>
> _______________________________________________
> Rtg-yang-coord mailing list
> Rtg-yang-coord@ietf.org
> https://www.ietf.org/mailman/listinfo/rtg-yang-coord


_______________________________________________

i2rs mailing list
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https://www.ietf.org/mailman/listinfo/i2rs

_______________________________________________
i2rs mailing list
i2rs@ietf.org
https://www.ietf.org/mailman/listinfo/i2rs

=20


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</o:shapelayout></xml><![endif]--></head><body lang=3DEN-US link=3Dblue =
vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Xian:<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>The time will be 6:00pm-7:00pm (18:00-19:00) on Sunday 7/19/2015 in =
Prague. =C2=A0<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>I=E2=80=99m also trying to lock down a conference call at =
11:00am-12:00 ET (8:00am-12:00pm PT, 23:00-23:59 Beijing) on 7/8 for the =
TEAS authors and the topology authors. =C2=A0By this time I will have =
reviewed the TEAS and I2RS drafts submitted, and I will have questions =
for the authors. <o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Please let me know if you can attend these two =
meetings.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Sue <o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p>&nbsp;</o:p></span></p><div><div =
style=3D'border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in'><p class=3DMsoNormal><b><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span>=
</b><span style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'> =
i2rs [mailto:i2rs-bounces@ietf.org] <b>On Behalf Of </b>Zhangxian =
(Xian)<br><b>Sent:</b> Thursday, July 02, 2015 11:47 PM<br><b>To:</b> =
Susan Hares; Vishnu Pavan Beeram; Lou Berger; =
draft-ietf-teas-yang-te-topo@tools.ietf.com<br><b>Cc:</b> =
Rtg-yang-coord@ietf.org; i2rs@ietf.org; BRUNGARD, DEBORAH A; =
alex@cisco.com; Alia Atlas; Jeffrey Haas; Alvaro Retana =
(aretana)<br><b>Subject:</b> Re: [i2rs] [Rtg-yang-coord] Requirements =
for I2RS protocol and I2RS interim (6/24/2015 at 10:00 - 11:30am =
ET)<o:p></o:p></span></p></div></div><p =
class=3DMsoNormal><o:p>&nbsp;</o:p></p><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D;mso-fareast-language:ZH-CN'>Hi, <o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D;mso-fareast-language:ZH-CN'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D;mso-fareast-language:ZH-CN'>&nbsp;&nbsp; I would echo what Lou said in =
another email:<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D;mso-fareast-language:ZH-CN'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D;mso-fareast-language:ZH-CN'>=E2=80=9C</span><span =
style=3D'mso-fareast-language:ZH-CN'>We should probably announce the =
time and place where the authors will be meeting in Prague so that =
others who are interested can show.<span =
lang=3DZH-CN>=E2=80=9D</span><o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-fareast-language:ZH-CN'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D;mso-fareast-language:ZH-CN'>I am definitely interested. =
<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D;mso-fareast-language:ZH-CN'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal style=3D'text-indent:5.25pt'><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D;mso-fareast-language:ZH-CN'>Another suggestion is: can we try to draw =
a relationship diagram to see how the topology related models fits =
together (irrespective of which WG should work on what)? In the =
&lt;network-topo-model&gt; draft, there is already a diagram which might =
be helpful as a starting point. <o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D;mso-fareast-language:ZH-CN'><o:p>&nbsp;</o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D;mso-fareast-language:ZH-CN'>Regards,<br>Xian<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Calibri","sans-serif";color:#1F497=
D;mso-fareast-language:ZH-CN'><o:p>&nbsp;</o:p></span></p><div =
style=3D'border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in'><p class=3DMsoNormal><b><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-fareast-l=
anguage:ZH-CN'>From:</span></b><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-fareast-l=
anguage:ZH-CN'> i2rs [<a =
href=3D"mailto:i2rs-bounces@ietf.org">mailto:i2rs-bounces@ietf.org</a>] =
<b>On Behalf Of </b>Vishnu Pavan Beeram<br><b>Sent:</b> 2015</span><span =
lang=3DZH-CN =
style=3D'font-size:10.0pt;mso-fareast-language:ZH-CN'>=E5=B9=B4</span><sp=
an =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-fareast-l=
anguage:ZH-CN'>7</span><span lang=3DZH-CN =
style=3D'font-size:10.0pt;mso-fareast-language:ZH-CN'>=E6=9C=88</span><sp=
an =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-fareast-l=
anguage:ZH-CN'>2</span><span lang=3DZH-CN =
style=3D'font-size:10.0pt;mso-fareast-language:ZH-CN'>=E6=97=A5</span><sp=
an =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-fareast-l=
anguage:ZH-CN'> 8:42<br><b>To:</b> Susan Hares<br><b>Cc:</b> <a =
href=3D"mailto:Rtg-yang-coord@ietf.org">Rtg-yang-coord@ietf.org</a>; <a =
href=3D"mailto:i2rs@ietf.org">i2rs@ietf.org</a>; BRUNGARD, DEBORAH A; <a =
href=3D"mailto:alex@cisco.com">alex@cisco.com</a>; Vishnu Pavan Beeram; =
Alia Atlas; <a =
href=3D"mailto:draft-ietf-teas-yang-te-topo@tools.ietf.com">draft-ietf-te=
as-yang-te-topo@tools.ietf.com</a>; Jeffrey Haas; Alvaro Retana =
(aretana); Lou Berger<br><b>Subject:</b> Re: [i2rs] [Rtg-yang-coord] =
Requirements for I2RS protocol and I2RS interim (6/24/2015 at 10:00 - =
11:30am ET)<o:p></o:p></span></p></div><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:ZH-CN'><o:p>&nbsp;</o:p></span></p><div><di=
v><div><p class=3DMsoNormal><span style=3D'mso-fareast-language:ZH-CN'>+ =
Alex<o:p></o:p></span></p></div><div><p class=3DMsoNormal =
style=3D'margin-bottom:12.0pt'><span =
style=3D'mso-fareast-language:ZH-CN'>+ &lt;te-topo-model&gt; =
authors<o:p></o:p></span></p></div><div><p class=3DMsoNormal =
style=3D'margin-bottom:12.0pt'><span =
style=3D'mso-fareast-language:ZH-CN'>Sue, =
Jeff,<o:p></o:p></span></p></div><p class=3DMsoNormal =
style=3D'margin-bottom:12.0pt'><span =
style=3D'mso-fareast-language:ZH-CN'>The authors of the =
&lt;te-topo-model&gt; draft had a meeting today with one of the authors =
(Alex) of the &lt;network-topo-model&gt; draft and discussed ways to =
align the topo models. The consensus so far is that the =
&lt;te-topo-model&gt; WILL augment the &lt;network-topo-model&gt;. There =
are some issues that need to be worked out (mapping identifiers, =
termination-points), but those should get resolved in due course of =
time. <br><br>I'll sync up with you (Sue) and coordinate a meeting =
between the authors of the &lt;te-topo-model&gt; and the authors of the =
I2RS topo model(s) at the IETF --- hopefully early in the week. =
<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:ZH-CN'>Regards,<o:p></o:p></span></p></div>=
<div><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:ZH-CN'>-Pavan<o:p></o:p></span></p></div><d=
iv><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:ZH-CN'><o:p>&nbsp;</o:p></span></p><div><p =
class=3DMsoNormal><span style=3D'mso-fareast-language:ZH-CN'>On Wed, Jul =
1, 2015 at 6:49 PM, Susan Hares &lt;<a href=3D"mailto:shares@ndzh.com" =
target=3D"_blank">shares@ndzh.com</a>&gt; wrote:<o:p></o:p></span></p><p =
class=3DMsoNormal style=3D'margin-bottom:12.0pt'><span =
style=3D'mso-fareast-language:ZH-CN'>Lou and Jeffrey:<br><br>On 7/22, I =
talked with the TEAS TE authors team.&nbsp; They had concerns =
about<br>how the I2RS was going to integrate the TEAS work.&nbsp; I =
realized there are two<br>different approaches to the models - and I =
expressed my&nbsp; hope that we could<br>have aligned/merged =
models.&nbsp; I chatted with the I2RS topology draft authors,<br>and I =
found that the authors had not yet begun to work on the TE =
models.<br>The best plan is to try to get the TEAS authors and the I2RS =
Topology<br>authors together at IETF 93 and get a plan together for =
migrating these<br>teams together.<br><br>I will send a few times out to =
teams this evening.&nbsp; &nbsp;It would really help<br>I2RS if the TEAS =
group would meet early in the week (or if the folks are at<br>the =
hack-athon like I am we may meet Saturday night).&nbsp; We could then =
try to<br>give NETCONF our best insight on the TE =
additions.<br><br>&nbsp;In order to prepare for this TE/Non-TE merge, =
I2RS WG need to finalize the<br>non-TE models in the topology.&nbsp; =
Today's interim was target to firm up the<br>Service and T1 topology =
models, but the T1 topology model will not be ready<br>until IETF =
93.&nbsp; My message in June hoped that we would be to the TE =
models<br>by IETF so that NETCONF would have our entire scope, but we =
will not be<br>there by the beginning of IETF.&nbsp; &nbsp;I2RS will be =
following up in August and<br>September with Interims that focus on the =
TE models in I2RS Topology model.<br><br>Do you have any other =
suggestions?<br><br>Sue<br><br><br><span class=3Dim>-----Original =
Message-----</span><br><span class=3Dim>From: i2rs [mailto:<a =
href=3D"mailto:i2rs-bounces@ietf.org">i2rs-bounces@ietf.org</a>] On =
Behalf Of Lou Berger</span><br><span class=3Dim>Sent: Wednesday, July =
01, 2015 11:39 AM</span><br><span class=3Dim>To: Susan Hares; 'Jeffrey =
Haas'</span><br><span class=3Dim>Cc: <a =
href=3D"mailto:Rtg-yang-coord@ietf.org">Rtg-yang-coord@ietf.org</a>; <a =
href=3D"mailto:i2rs@ietf.org">i2rs@ietf.org</a>; 'BRUNGARD, DEBORAH A'; =
Vishnu</span><br><span class=3Dim>Pavan Beeram; 'Alvaro Retana =
(aretana)'; 'Alia Atlas'</span><br><span class=3Dim>Subject: Re: [i2rs] =
[Rtg-yang-coord] Requirements for I2RS protocol and I2RS</span><br><span =
class=3Dim>interim (6/24/2015 at 10:00 - 11:30am =
ET)</span><o:p></o:p></span></p><div><div><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:ZH-CN'>&gt; At this time, none of the =
Topology models utilize Traffic<br>engineering.&nbsp; It is anticipated =
that these models will support traffic<br>engineering.<br><br>Sue, =
Jeff,<br>&nbsp; &nbsp; Given some recent messages on the list, I thought =
it best to confirm<br>we're all still on the same page.<br><br>Based on =
our past discussions, it's my understanding that the work being<br>done =
in TEAS (see draft-ietf-teas-yang-te-topo) will serve as the =
foundation<br>for TE support in the I2RS models.&nbsp; I complete agree =
that there are details<br>on how the different topology models will =
integrate/mesh still needs to be<br>worked out, and I assumed that this =
is what you/Sue were referring to above.<br>-- But we will not have two =
sets of TE topology models.<br><br>I believe that the authors of the =
respective drafts are already are working<br>this.&nbsp; (Pavan, my =
co-chair as well as coauthor of the TEAS yang model, can<br>comment on =
this.)<br><br>Please let me know if I missed/miss-understood =
something.<br><br>Thanks,<br>Lou<br>(as TEAS WG co-chair)<br>On =
6/23/2015 2:19 PM, Susan Hares wrote:<br>&gt;<br>&gt; Netconf Working =
Group:<br>&gt;<br>&gt;<br>&gt;<br>&gt; The I2RS WG would like to pass =
you a set of requirements for the I2RS<br>&gt; protocol, and asks that =
you provide an analysis by IETF 93 on whether<br>&gt; NETCONF or =
RESTCONF can meet these requirements.&nbsp; &nbsp;We expect that<br>&gt; =
these requirements may require changes to the either NETCONF or<br>&gt; =
RESTCONF.<br>&gt;<br>&gt;<br>&gt;<br>&gt; The I2RS architecture document =
(draft-ietf-i2rs-architecture-09<br>&gt; &lt;<a =
href=3D"https://datatracker.ietf.org/doc/draft-ietf-i2rs-architecture/" =
target=3D"_blank">https://datatracker.ietf.org/doc/draft-ietf-i2rs-archit=
ecture/</a>&gt;)<br>&gt; provides a high-level overview of the =
I2RS&nbsp; protocol.&nbsp; The I2RS has<br>&gt; compiled the following =
documents to provide the additional details on<br>&gt; the requirements =
for the protocols.<br>&gt;<br>&gt;<br>&gt;<br>&gt; 1)&nbsp; &nbsp; =
&nbsp; draft-ietf-i2rs-ephemeral-state-00<br>&gt; &lt;<a =
href=3D"https://datatracker.ietf.org/doc/draft-ietf-i2rs-ephemeral-state/=
" =
target=3D"_blank">https://datatracker.ietf.org/doc/draft-ietf-i2rs-epheme=
ral-state/</a>&gt;<br>&gt;<br>&gt; 2)&nbsp; &nbsp; &nbsp; =
draft-ietf-i2rs-pub-sub-requirements-02<br>&gt; &lt;<a =
href=3D"https://datatracker.ietf.org/doc/draft-ietf-i2rs-pub-sub-requirem=
ents" =
target=3D"_blank">https://datatracker.ietf.org/doc/draft-ietf-i2rs-pub-su=
b-requirements</a><br>&gt; /&gt;<br>&gt;<br>&gt; 3)&nbsp; &nbsp; &nbsp; =
draft-ietf-i2rs-traceability-03<br>&gt; &lt;<a =
href=3D"https://datatracker.ietf.org/doc/draft-ietf-i2rs-traceability/" =
target=3D"_blank">https://datatracker.ietf.org/doc/draft-ietf-i2rs-tracea=
bility/</a>&gt;<br>&gt;<br>&gt;<br>&gt;<br>&gt; The =
draft-ietf-i2rs-ephemeral-state-00 contains the results of the<br>&gt; =
discussion from the 6/10 interim and the top 10 requirements for =
I2RS.<br>&gt; In addition, the draft-ietf-i2rs-ephemeral-state-00 =
contains an set of<br>&gt; detailed requirements on how the I2RS WG sees =
the I2RS protocol<br>&gt; operating.&nbsp; These detailed requirements =
are to be seen as suggestions<br>&gt; on what type of solution the I2RS =
WG would like to see, but I2RS WG is<br>&gt; asking the NETCONF WG to =
provide its best designed protocol.&nbsp; Please<br>&gt; note as part of =
these detailed requirement the<br>&gt; =
draft-ietf-i2rs-ephemeral-states-00 contains the idea of using<br>&gt; =
metadata to record secondary identity.<br>&gt;<br>&gt;<br>&gt;<br>&gt; =
The I2RS protocol is driven by data-models.&nbsp; The approved data =
models<br>&gt; for protocol independent services are:<br>&gt;<br>&gt; =
-&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; =
draft-ietf-i2rs-rib-data-model-00<br>&gt; &lt;<a =
href=3D"https://datatracker.ietf.org/doc/draft-ietf-i2rs-rib-data-model/"=
 =
target=3D"_blank">https://datatracker.ietf.org/doc/draft-ietf-i2rs-rib-da=
ta-model/</a>&gt;<br>&gt;<br>&gt; -&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; =
Filter-Based RIBS:&nbsp; draft-kini-i2rs-fb-rib-data-model.00<br>&gt; =
(released later this week)<br>&gt;<br>&gt; -&nbsp; &nbsp; &nbsp; &nbsp; =
&nbsp; Topology model which is a composite of:<br>&gt;<br>&gt; o&nbsp; =
&nbsp;Generic topology model: =
draft-ietf-i2rs-yang-network-topo-01<br>&gt; &lt;<a =
href=3D"https://datatracker.ietf.org/doc/draft-ietf-i2rs-yang-network-top=
o/" =
target=3D"_blank">https://datatracker.ietf.org/doc/draft-ietf-i2rs-yang-n=
etwork-topo/</a>&gt;<br>&gt;<br>&gt; o&nbsp; &nbsp;L3 topology model: =
draft-ietf-i2rs-yang-l3-topology-00<br>&gt; &lt;<a =
href=3D"https://datatracker.ietf.org/doc/draft-ietf-i2rs-yang-l3-topology=
/" =
target=3D"_blank">https://datatracker.ietf.org/doc/draft-ietf-i2rs-yang-l=
3-topology/</a>&gt;<br>&gt;<br>&gt; o&nbsp; &nbsp;L2 topology model: =
draft-ietf-i2rs-yang-l2-network-topology-00<br>&gt; &lt;<a =
href=3D"https://datatracker.ietf.org/doc/draft-ietf-i2rs-yang-l2-network-=
topo" =
target=3D"_blank">https://datatracker.ietf.org/doc/draft-ietf-i2rs-yang-l=
2-network-topo</a><br>&gt; logy/&gt;<br>&gt;<br>&gt; o&nbsp; &nbsp;L1 =
Topology model: draft-zhang-i2rs-l1-topo-yang-model-01 (-02<br>&gt; =
released later this week).<br>&gt;<br>&gt; o&nbsp; &nbsp;Service =
topology model:<br>&gt; draft-hares-i2rs-service-topo-yang-model-00 =
(released on Wednesday)<br>&gt;<br>&gt;<br>&gt;<br>&gt; At this time, =
none of the Topology models utilize Traffic engineering.<br>&gt; It is =
anticipated that these models will support traffic engineering.<br>&gt; =
Estimated rates of transfer and timing requirements for these =
modules<br>&gt; are at: <a =
href=3D"http://trac.tools.ietf.org/wg/i2rs/trac/wiki" =
target=3D"_blank">http://trac.tools.ietf.org/wg/i2rs/trac/wiki</a> - =
under the<br>&gt; protocol requirements =
table.<br>&gt;<br>&gt;<br>&gt;<br>&gt; We hope that NETCONF WG can =
provide some initial feedback on these<br>&gt; requirements by IETF 93 =
at the Tuesday I2RS session.&nbsp; &nbsp;I2RS will use<br>&gt; the 6/24 =
interim at 10:00-11:30am ET&nbsp; to provide a time for any<br>&gt; =
participate in the I2RS, netconf, or netmod group to ask =
additional<br>&gt; questions on these =
requirements.<br>&gt;<br>&gt;<br>&gt;<br>&gt; Sue =
Hares<br>&gt;<br>&gt;<br>&gt;<br>&gt; Interim time: 10:00-11:30am =
ET<br>&gt;<br>&gt; Date 6/24/2015<br>&gt;<br>&gt; Webex:<br>&gt;<br>&gt; =
<a =
href=3D"https://ietf.webex.com/ietf/j.php?MTID=3Dm4260bee7be61cb17b0008a3=
c52069d" =
target=3D"_blank">https://ietf.webex.com/ietf/j.php?MTID=3Dm4260bee7be61c=
b17b0008a3c52069d</a><br>&gt; 0f<br>&gt;<br>&gt;<br>&gt;<br>&gt; =
agenda:<br>&gt;<br>&gt;<br>&gt;<br>&gt; 10:00 - 10:05 - Bash =
Agenda<br>&gt;<br>&gt; 10:05 - 10:20- -&nbsp; review of requirements =
from<br>&gt;<br>&gt; draft-ietf-i2rs-ephemeral-state-00<br>&gt;<br>&gt; =
draft-ietf-i2rs-pub-sub-requirements-02<br>&gt;<br>&gt; =
draft-ietf-i2rs-traceability-03<br>&gt;<br>&gt; Timing =
requirements<br>&gt;<br>&gt;<br>&gt;<br>&gt; 10:20 - 10:30&nbsp; &nbsp; =
Review of requirements for mutual authentication,<br>&gt;<br>&gt; and =
transaction in&nbsp; draft-hares-auth-trans-01 =
requirements<br>&gt;<br>&gt;<br>&gt;<br>&gt; 10:30- 11:30&nbsp; &nbsp; =
&nbsp;Open discussion for I2RS =
Requirements<br>&gt;<br>&gt;<br>&gt;<br>&gt; Proceedings and slides can =
be found at:<br>&gt;<br>&gt; <a =
href=3D"http://www.ietf.org/proceedings/interim/2015/06/24/i2rs/proceedin=
gs.ht" =
target=3D"_blank">http://www.ietf.org/proceedings/interim/2015/06/24/i2rs=
/proceedings.ht</a><br>&gt; ml<br>&gt;<br>&gt;<br>&gt;<br>&gt; Sue =
Hares<br>&gt;<br>&gt;<br>&gt;<br>&gt;<br>&gt;<br>&gt;<br>&gt;<br>&gt; =
_______________________________________________<br>&gt; Rtg-yang-coord =
mailing list<br>&gt; <a =
href=3D"mailto:Rtg-yang-coord@ietf.org">Rtg-yang-coord@ietf.org</a><br>&g=
t; <a href=3D"https://www.ietf.org/mailman/listinfo/rtg-yang-coord" =
target=3D"_blank">https://www.ietf.org/mailman/listinfo/rtg-yang-coord</a=
><br><br><br>_______________________________________________<o:p></o:p></=
span></p></div></div><div><div><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:ZH-CN'>i2rs mailing list<br><a =
href=3D"mailto:i2rs@ietf.org">i2rs@ietf.org</a><br><a =
href=3D"https://www.ietf.org/mailman/listinfo/i2rs" =
target=3D"_blank">https://www.ietf.org/mailman/listinfo/i2rs</a><br><br>_=
______________________________________________<br>i2rs mailing =
list<br><a href=3D"mailto:i2rs@ietf.org">i2rs@ietf.org</a><br><a =
href=3D"https://www.ietf.org/mailman/listinfo/i2rs" =
target=3D"_blank">https://www.ietf.org/mailman/listinfo/i2rs</a><o:p></o:=
p></span></p></div></div></div><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:ZH-CN'><o:p>&nbsp;</o:p></span></p></div></=
div></div></body></html>
------=_NextPart_000_011D_01D0B59D.7EF91390--


From nobody Mon Jul  6 08:27:38 2015
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Date: Fri, 03 Jul 2015 15:49:01 -0400
From: Lou Berger <lberger@labn.net>
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Subject: Re: [Rtg-yang-coord] [i2rs] Requirements for I2RS protocol and I2RS interim (6/24/2015 at 10:00 - 11:30am ET)
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Sue,

On 7/3/2015 2:35 PM, Susan Hares wrote:
> By this time I will have reviewed the TEAS and I2RS drafts submitted,
> and I will have questions for the authors.

It might be helpful to have this discussion on list so others who are on
the call can follow/participate.

Thanks,
Lou



From nobody Mon Jul  6 08:27:39 2015
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Subject: Re: [Rtg-yang-coord] [i2rs] Requirements for I2RS protocol and I2RS interim (6/24/2015 at 10:00 - 11:30am ET)
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Lou:

This webex (7/8) is to help inform the I2RS chair so that prior to kicking
off the mail list discussion. 

Sue 

-----Original Message-----
From: Lou Berger [mailto:lberger@labn.net] 
Sent: Friday, July 03, 2015 3:49 PM
To: Susan Hares; 'Zhangxian (Xian)'; 'Vishnu Pavan Beeram';
draft-ietf-teas-yang-te-topo@tools.ietf.com
Cc: Rtg-yang-coord@ietf.org; i2rs@ietf.org; 'BRUNGARD, DEBORAH A';
alex@cisco.com; 'Alia Atlas'; 'Jeffrey Haas'; 'Alvaro Retana (aretana)'
Subject: Re: [i2rs] [Rtg-yang-coord] Requirements for I2RS protocol and I2RS
interim (6/24/2015 at 10:00 - 11:30am ET)

Sue,

On 7/3/2015 2:35 PM, Susan Hares wrote:
> By this time I will have reviewed the TEAS and I2RS drafts submitted, 
> and I will have questions for the authors.

It might be helpful to have this discussion on list so others who are on the
call can follow/participate.

Thanks,
Lou




From nobody Mon Jul  6 09:15:05 2015
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Date: Mon, 06 Jul 2015 12:14:41 -0400
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Subject: [Rtg-yang-coord] Fwd: I-D Action: draft-rtgyangdt-rtgwg-device-model-00.txt
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<html>
  <head>

    <meta http-equiv="content-type" content="text/html; charset=windows-1252">
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  <body bgcolor="#FFFFFF" text="#000000">
    <br>
    <div class="moz-forward-container">Hi,<br>
          We've posted the first draft produced by the Routing Area YANG
      Architecture design team. It covers the so-called device
      meta-model.  This draft is driven by the requirements stated in 
      draft-openconfig-netmod-model-structure-00 and is also and is
      derivative of that work.<br>
      <br>
      It is very much a work in progress and we expect to discuss
      details, open issues and plans in the RTGWG meeting in Prague and
      on the WG mail list.<br>
      <br>
      Lou (and co-authors/dt members)<br>
      <br>
      -------- Forwarded Message --------
      <table class="moz-email-headers-table" border="0" cellpadding="0"
        cellspacing="0">
        <tbody>
          <tr>
            <th align="RIGHT" nowrap="nowrap" valign="BASELINE">Subject:
            </th>
            <td>I-D Action: draft-rtgyangdt-rtgwg-device-model-00.txt</td>
          </tr>
          <tr>
            <th align="RIGHT" nowrap="nowrap" valign="BASELINE">Date: </th>
            <td>Mon, 06 Jul 2015 08:56:51 -0700</td>
          </tr>
          <tr>
            <th align="RIGHT" nowrap="nowrap" valign="BASELINE">From: </th>
            <td><a class="moz-txt-link-abbreviated" href="mailto:internet-drafts@ietf.org">internet-drafts@ietf.org</a></td>
          </tr>
          <tr>
            <th align="RIGHT" nowrap="nowrap" valign="BASELINE">Reply-To:
            </th>
            <td><a class="moz-txt-link-abbreviated" href="mailto:internet-drafts@ietf.org">internet-drafts@ietf.org</a></td>
          </tr>
          <tr>
            <th align="RIGHT" nowrap="nowrap" valign="BASELINE">To: </th>
            <td><a class="moz-txt-link-abbreviated" href="mailto:i-d-announce@ietf.org">i-d-announce@ietf.org</a></td>
          </tr>
        </tbody>
      </table>
      <br>
      <br>
      <pre>A New Internet-Draft is available from the on-line Internet-Drafts directories.


        Title           : Network Device YANG Organizational Model
        Authors         : Acee Lindem
                          Lou Berger
                          Dean Bogdanovic
                          Christian Hopps
	Filename        : draft-rtgyangdt-rtgwg-device-model-00.txt
	Pages           : 28
	Date            : 2015-07-06

Abstract:
   This document presents an approach for organizing YANG models in a
   comprehensive structure that defines how individual models may be
   composed to configure and operate network infrastructure and
   services.  The structure is itself represented as a YANG model rooted
   at a device, with all of the related component models logically
   organized in a way that is operationally intuitive. This document is
   derived from work submitted to the IETF by members of the informal
   OpenConfig working group of network operators and is a product of the
   Routing Area YANG Architecture design team.


The IETF datatracker status page for this draft is:
<a class="moz-txt-link-freetext" href="https://datatracker.ietf.org/doc/draft-rtgyangdt-rtgwg-device-model/">https://datatracker.ietf.org/doc/draft-rtgyangdt-rtgwg-device-model/</a>

There's also a htmlized version available at:
<a class="moz-txt-link-freetext" href="https://tools.ietf.org/html/draft-rtgyangdt-rtgwg-device-model-00">https://tools.ietf.org/html/draft-rtgyangdt-rtgwg-device-model-00</a>


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:
<a class="moz-txt-link-freetext" href="ftp://ftp.ietf.org/internet-drafts/">ftp://ftp.ietf.org/internet-drafts/</a>

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</pre>
      <br>
    </div>
    <br>
  </body>
</html>


From nobody Mon Jul  6 13:14:26 2015
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To: rtg-yang-coord@ietf.org
References: <00d901d0ade1$194280e0$4bc782a0$@ndzh.com> <5594097C.70607@labn.net> <00d801d0b450$250e4560$6f2ad020$@ndzh.com> <CA+YzgTsJOptCtNqqccsFxGR6y+-kua2dW6NBsPru4fZY4PxnOg@mail.gmail.com>
From: Tom Taylor <tom.taylor.stds@gmail.com>
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Date: Mon, 6 Jul 2015 16:14:22 -0400
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Subject: Re: [Rtg-yang-coord] [i2rs] Requirements for I2RS protocol and I2RS interim (6/24/2015 at 10:00 - 11:30am ET)
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In theory, at least, LIME needs a topology model, but it has to cover 
multiple layers. I'll keep an eye on this work.

Tom Taylor

On 01/07/2015 8:41 PM, Vishnu Pavan Beeram wrote:
> + Alex
> + <te-topo-model> authors
>
> Sue, Jeff,
>
> The authors of the <te-topo-model> draft had a meeting today with one of
> the authors (Alex) of the <network-topo-model> draft and discussed ways to
> align the topo models. The consensus so far is that the <te-topo-model>
> WILL augment the <network-topo-model>. There are some issues that need to
> be worked out (mapping identifiers, termination-points), but those should
> get resolved in due course of time.
>
> I'll sync up with you (Sue) and coordinate a meeting between the authors of
> the <te-topo-model> and the authors of the I2RS topo model(s) at the IETF
> --- hopefully early in the week.
>
> Regards,
> -Pavan
>
...


From nobody Tue Jul  7 02:00:19 2015
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Cc: "rtg-yang-coord@ietf.org" <rtg-yang-coord@ietf.org>, Samuel Chen <samuel.chen@ericsson.com>, "Liubing \(Leo\)" <leo.liubing@huawei.com>, Yangang <yangang@huawei.com>, =?utf-8?B?w4Fkw6FtIEbDtmxkZXM=?= <adam.foldes@ericsson.com>, Kai Lin <kai.lin@ericsson.com>, lizhenbin 00147097 <l00147097@notesmail.huawei.com.cn>, Xufeng Liu <xufeng.liu@ericsson.com>
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From nobody Tue Jul  7 03:18:33 2015
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From: Mandy Liu <mandy.liu@ericsson.com>
To: "Zhengguangying " <IMCEAMAILTO-zhengguangying+40huawei+2Ecom@ericsson.com>
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Subject: [Rtg-yang-coord] Comments on draft-zheng-intarea-tunneling-for-ipv6-yang-00
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Hi Guangying,

Here are some comments for draft-zheng-intarea-tunneling-for-ipv6-yang-00.


-          I suggest that if GRE, ISATAP won't be included in this draft, y=
ou could remove them from the "introduction".

-          Why use "feature" statement to describe "tunneling-for-ipv6"?

-          Typo on "feeture".

-          Why there is no a field be used to address the routing-instance =
reference?

Regards,
Mandy

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<p class=3D"MsoNormal">Hi Guangying,<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Here are some comments for draft-zheng-intarea-tunne=
ling-for-ipv6-yang-00.<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoListParagraph" style=3D"text-indent:-.25in;mso-list:l0 level=
1 lfo1"><![if !supportLists]><span style=3D"mso-list:Ignore">-<span style=
=3D"font:7.0pt &quot;Times New Roman&quot;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]>I suggest that if GRE, ISATAP won&#8217;t be includ=
ed in this draft, you could remove them from the &#8220;introduction&#8221;=
.
<o:p></o:p></p>
<p class=3D"MsoListParagraph" style=3D"text-indent:-.25in;mso-list:l0 level=
1 lfo1"><![if !supportLists]><span style=3D"mso-list:Ignore">-<span style=
=3D"font:7.0pt &quot;Times New Roman&quot;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]>Why use &#8220;feature&#8221; statement to describe=
 &#8220;tunneling-for-ipv6&#8221;?<o:p></o:p></p>
<p class=3D"MsoListParagraph" style=3D"text-indent:-.25in;mso-list:l0 level=
1 lfo1"><![if !supportLists]><span style=3D"mso-list:Ignore">-<span style=
=3D"font:7.0pt &quot;Times New Roman&quot;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]>Typo on &#8220;feeture&#8221;.<o:p></o:p></p>
<p class=3D"MsoListParagraph" style=3D"text-indent:-.25in;mso-list:l0 level=
1 lfo1"><![if !supportLists]><span style=3D"mso-list:Ignore">-<span style=
=3D"font:7.0pt &quot;Times New Roman&quot;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]>Why there is no a field be used to address the rout=
ing-instance reference?<o:p></o:p></p>
<p class=3D"MsoNormal"><o:p>&nbsp;</o:p></p>
<p class=3D"MsoNormal">Regards,<o:p></o:p></p>
<p class=3D"MsoNormal">Mandy<o:p></o:p></p>
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From nobody Tue Jul  7 07:26:48 2015
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Subject: Re: [Rtg-yang-coord] [i2rs] Requirements for I2RS protocol and I2RS interim (6/24/2015 at 10:00 - 11:30am ET)
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Tom:

We should chat.  Lime, TEAS, and I2RS are looking at multiple layer topology
models. 

LIME is looking at the configuration of OAM. 
TEAS is looking at traffic engineering. 
I2RS is looking at  Virtual topology that are created by the I2RS protocol. 
  
 I2RS topology protocol independent topologies are composites from
 other protocol-dependent topologies.   OAM could be consider one
 of those other protocol dependent.

Sue 

-----Original Message-----
From: Rtg-yang-coord [mailto:rtg-yang-coord-bounces@ietf.org] On Behalf Of
Tom Taylor
Sent: Monday, July 06, 2015 4:14 PM
To: rtg-yang-coord@ietf.org
Subject: Re: [Rtg-yang-coord] [i2rs] Requirements for I2RS protocol and I2RS
interim (6/24/2015 at 10:00 - 11:30am ET)

In theory, at least, LIME needs a topology model, but it has to cover
multiple layers. I'll keep an eye on this work.

Tom Taylor

On 01/07/2015 8:41 PM, Vishnu Pavan Beeram wrote:
> + Alex
> + <te-topo-model> authors
>
> Sue, Jeff,
>
> The authors of the <te-topo-model> draft had a meeting today with one 
> of the authors (Alex) of the <network-topo-model> draft and discussed 
> ways to align the topo models. The consensus so far is that the 
> <te-topo-model> WILL augment the <network-topo-model>. There are some 
> issues that need to be worked out (mapping identifiers, 
> termination-points), but those should get resolved in due course of time.
>
> I'll sync up with you (Sue) and coordinate a meeting between the 
> authors of the <te-topo-model> and the authors of the I2RS topo 
> model(s) at the IETF
> --- hopefully early in the week.
>
> Regards,
> -Pavan
>
...

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Tom:

We are having a meeting of the TEAS And I2RS authors on Wednesday at 12:00pm
ET.  If you would like to listen in, please let me know. 

Sue 

-----Original Message-----
From: Rtg-yang-coord [mailto:rtg-yang-coord-bounces@ietf.org] On Behalf Of
Susan Hares
Sent: Tuesday, July 07, 2015 10:26 AM
To: 'Tom Taylor'; rtg-yang-coord@ietf.org
Subject: Re: [Rtg-yang-coord] [i2rs] Requirements for I2RS protocol and I2RS
interim (6/24/2015 at 10:00 - 11:30am ET)

Tom:

We should chat.  Lime, TEAS, and I2RS are looking at multiple layer topology
models. 

LIME is looking at the configuration of OAM. 
TEAS is looking at traffic engineering. 
I2RS is looking at  Virtual topology that are created by the I2RS protocol. 
  
 I2RS topology protocol independent topologies are composites from
 other protocol-dependent topologies.   OAM could be consider one
 of those other protocol dependent.

Sue 

-----Original Message-----
From: Rtg-yang-coord [mailto:rtg-yang-coord-bounces@ietf.org] On Behalf Of
Tom Taylor
Sent: Monday, July 06, 2015 4:14 PM
To: rtg-yang-coord@ietf.org
Subject: Re: [Rtg-yang-coord] [i2rs] Requirements for I2RS protocol and I2RS
interim (6/24/2015 at 10:00 - 11:30am ET)

In theory, at least, LIME needs a topology model, but it has to cover
multiple layers. I'll keep an eye on this work.

Tom Taylor

On 01/07/2015 8:41 PM, Vishnu Pavan Beeram wrote:
> + Alex
> + <te-topo-model> authors
>
> Sue, Jeff,
>
> The authors of the <te-topo-model> draft had a meeting today with one 
> of the authors (Alex) of the <network-topo-model> draft and discussed 
> ways to align the topo models. The consensus so far is that the 
> <te-topo-model> WILL augment the <network-topo-model>. There are some 
> issues that need to be worked out (mapping identifiers, 
> termination-points), but those should get resolved in due course of time.
>
> I'll sync up with you (Sue) and coordinate a meeting between the 
> authors of the <te-topo-model> and the authors of the I2RS topo
> model(s) at the IETF
> --- hopefully early in the week.
>
> Regards,
> -Pavan
>
...

_______________________________________________
Rtg-yang-coord mailing list
Rtg-yang-coord@ietf.org
https://www.ietf.org/mailman/listinfo/rtg-yang-coord

_______________________________________________
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From: Qin Wu <bill.wu@huawei.com>
To: "rtg-yang-coord@ietf.org" <rtg-yang-coord@ietf.org>
Thread-Topic: Update of Routing Area Yang Coordinator's Summary Page
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Here is the update to Routing Area Yang Coordinator's Summary Page
https://trac.tools.ietf.org/area/rtg/trac/wiki/RtgYangCoordSummary
We have 14 YANG model WG drafts in which 4 new was adopted recently.
Also we have 30 newly developed YANG model I-Ds covering OAM,
network topology, routing, Interface, Encapsulation and etc.

In the summary page, we can see these YANG models have been reorganized
In several topic groups. We as YANG coordinators believe authors of these Y=
ANG model draft need to
better Coordinate with each other if your drafts are classified into the sa=
me group in the summary page.
Thanks!

Qin and David


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<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span lang=3D"EN-US">Here is the update to Routing A=
rea Yang Coordinator's Summary Page<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><a href=3D"https://trac.tools.i=
etf.org/area/rtg/trac/wiki/RtgYangCoordSummary">https://trac.tools.ietf.org=
/area/rtg/trac/wiki/RtgYangCoordSummary</a><o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">We have 14 YANG model WG drafts=
 in which 4 new was adopted recently.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Also we have 30 newly developed=
 YANG model I-Ds covering OAM,
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">network topology, routing, Inte=
rface, Encapsulation and etc.<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">In the summary page, we can see=
 these YANG models have been reorganized<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">In several topic groups. We as =
YANG coordinators believe authors of these YANG model draft need to<o:p></o=
:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">better Coordinate with each oth=
er if your drafts are classified into the same group in the summary page.<o=
:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Thanks!<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Qin and David<o:p></o:p></span>=
</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
</div>
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From nobody Wed Jul 15 07:08:28 2015
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From: Alia Atlas <akatlas@gmail.com>
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Subject: Re: [Rtg-yang-coord] Update of Routing Area Yang Coordinator's Summary Page
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Qin and David,

Thank you very much for keeping this information up to date.  It really
helps
keep track of where we are with models.

Alia

On Tue, Jul 14, 2015 at 10:03 AM, Qin Wu <bill.wu@huawei.com> wrote:

>  Here is the update to Routing Area Yang Coordinator's Summary Page
>
> https://trac.tools.ietf.org/area/rtg/trac/wiki/RtgYangCoordSummary
>
> We have 14 YANG model WG drafts in which 4 new was adopted recently.
>
> Also we have 30 newly developed YANG model I-Ds covering OAM,
>
> network topology, routing, Interface, Encapsulation and etc.
>
>
>
> In the summary page, we can see these YANG models have been reorganized
>
> In several topic groups. We as YANG coordinators believe authors of these
> YANG model draft need to
>
> better Coordinate with each other if your drafts are classified into the
> same group in the summary page.
>
> Thanks!
>
>
>
> Qin and David
>
>
>
> _______________________________________________
> Rtg-yang-coord mailing list
> Rtg-yang-coord@ietf.org
> https://www.ietf.org/mailman/listinfo/rtg-yang-coord
>
>

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<div dir=3D"ltr">Qin and David,<div><br></div><div>Thank you very much for =
keeping this information up to date.=C2=A0 It really helps</div><div>keep t=
rack of where we are with models.</div><div><br></div><div>Alia</div></div>=
<div class=3D"gmail_extra"><br><div class=3D"gmail_quote">On Tue, Jul 14, 2=
015 at 10:03 AM, Qin Wu <span dir=3D"ltr">&lt;<a href=3D"mailto:bill.wu@hua=
wei.com" target=3D"_blank">bill.wu@huawei.com</a>&gt;</span> wrote:<br><blo=
ckquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #c=
cc solid;padding-left:1ex">





<div lang=3D"ZH-CN" link=3D"blue" vlink=3D"purple">
<div>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Here is the update to Routing A=
rea Yang Coordinator&#39;s Summary Page<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><a href=3D"https://trac.tools.i=
etf.org/area/rtg/trac/wiki/RtgYangCoordSummary" target=3D"_blank">https://t=
rac.tools.ietf.org/area/rtg/trac/wiki/RtgYangCoordSummary</a><u></u><u></u>=
</span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">We have 14 YANG model WG drafts=
 in which 4 new was adopted recently.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Also we have 30 newly developed=
 YANG model I-Ds covering OAM,
<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">network topology, routing, Inte=
rface, Encapsulation and etc.<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">In the summary page, we can see=
 these YANG models have been reorganized<u></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">In several topic groups. We as =
YANG coordinators believe authors of these YANG model draft need to<u></u><=
u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">better Coordinate with each oth=
er if your drafts are classified into the same group in the summary page.<u=
></u><u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Thanks!<u></u><u></u></span></p=
>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Qin and David<u></u><u></u></sp=
an></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><u></u>=C2=A0<u></u></span></p>
</div>
</div>

<br>_______________________________________________<br>
Rtg-yang-coord mailing list<br>
<a href=3D"mailto:Rtg-yang-coord@ietf.org">Rtg-yang-coord@ietf.org</a><br>
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oord</a><br>
<br></blockquote></div><br></div>

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From: "Scharf, Michael (Michael)" <michael.scharf@alcatel-lucent.com>
To: Qin Wu <bill.wu@huawei.com>, "rtg-yang-coord@ietf.org" <rtg-yang-coord@ietf.org>
Thread-Topic: [Rtg-yang-coord] Update of Routing Area Yang Coordinator's Summary	Page
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Subject: Re: [Rtg-yang-coord] Update of Routing Area Yang Coordinator's Summary	Page
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Thanks. This page is really useful.

A small nit: Entry 1 in "Routing Area WG Draft Table" is a successor of ent=
ry 49 in "Routing Area I-D Table", i.e., a duplicate, right?

Michael


From: Rtg-yang-coord [mailto:rtg-yang-coord-bounces@ietf.org] On Behalf Of =
Qin Wu
Sent: Tuesday, July 14, 2015 4:03 PM
To: rtg-yang-coord@ietf.org
Cc: david.sinicrope@ericsson.com
Subject: [Rtg-yang-coord] Update of Routing Area Yang Coordinator's Summary=
 Page

Here is the update to Routing Area Yang Coordinator's Summary Page
https://trac.tools.ietf.org/area/rtg/trac/wiki/RtgYangCoordSummary
We have 14 YANG model WG drafts in which 4 new was adopted recently.
Also we have 30 newly developed YANG model I-Ds covering OAM,
network topology, routing, Interface, Encapsulation and etc.

In the summary page, we can see these YANG models have been reorganized
In several topic groups. We as YANG coordinators believe authors of these Y=
ANG model draft need to
better Coordinate with each other if your drafts are classified into the sa=
me group in the summary page.
Thanks!

Qin and David


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<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;color=
:#1F497D">Thanks. This page is really useful.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;color=
:#1F497D">A small nit: Entry 1 in &#8220;Routing Area WG Draft Table&#8221;=
 is a successor of entry 49 in &#8220;Routing Area I-D Table&#8221;, i.e., =
a duplicate, right?<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;color=
:#1F497D">Michael
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;color=
:#1F497D"><o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
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4.0pt">
<div>
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0cm 0cm">
<p class=3D"MsoNormal" align=3D"left" style=3D"text-align:left"><b><span la=
ng=3D"EN-US" style=3D"font-size:10.0pt;font-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;"> Rtg-yang-coo=
rd [mailto:rtg-yang-coord-bounces@ietf.org]
<b>On Behalf Of </b>Qin Wu<br>
<b>Sent:</b> Tuesday, July 14, 2015 4:03 PM<br>
<b>To:</b> rtg-</span><span style=3D"font-size:10.0pt;font-family:&quot;Tah=
oma&quot;,&quot;sans-serif&quot;">yang-coord@ietf.org<br>
<b>Cc:</b> david.sinicrope@ericsson.com<br>
<b>Subject:</b> [Rtg-yang-coord] Update of Routing Area Yang Coordinator's =
Summary Page<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" align=3D"left" style=3D"text-align:left"><o:p>&nbsp;=
</o:p></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Here is the update to Routing A=
rea Yang Coordinator's Summary Page<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><a href=3D"https://trac.tools.i=
etf.org/area/rtg/trac/wiki/RtgYangCoordSummary">https://trac.tools.ietf.org=
/area/rtg/trac/wiki/RtgYangCoordSummary</a><o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">We have 14 YANG model WG drafts=
 in which 4 new was adopted recently.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Also we have 30 newly developed=
 YANG model I-Ds covering OAM,
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">network topology, routing, Inte=
rface, Encapsulation and etc.<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">In the summary page, we can see=
 these YANG models have been reorganized<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">In several topic groups. We as =
YANG coordinators believe authors of these YANG model draft need to<o:p></o=
:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">better Coordinate with each oth=
er if your drafts are classified into the same group in the summary page.<o=
:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Thanks!<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Qin and David<o:p></o:p></span>=
</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
</div>
</div>
</body>
</html>

--_000_655C07320163294895BBADA28372AF5D484270ABFR712WXCHMBA15z_--


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From: Qin Wu <bill.wu@huawei.com>
To: "Scharf, Michael (Michael)" <michael.scharf@alcatel-lucent.com>, "rtg-yang-coord@ietf.org" <rtg-yang-coord@ietf.org>
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<div class=3D"WordSection1">
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D">You are=
 right, Michale, entry 1 in =A1=B0</span><span lang=3D"EN-US" style=3D"font=
-size:11.0pt;color:#1F497D">Routing Area WG Draft Table</span><span lang=3D=
"EN-US" style=3D"color:#1F497D">=A1=B1 is the replacement
 of entry 49 in =A1=B0</span><span lang=3D"EN-US" style=3D"font-size:11.0pt=
;color:#1F497D">Routing Area I-D Table</span><span lang=3D"EN-US" style=3D"=
color:#1F497D">=A1=B1,<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D">We shou=
ld delete entry 49 in =A1=B0</span><span lang=3D"EN-US" style=3D"font-size:=
11.0pt;color:#1F497D">Routing Area I-D Table</span><span lang=3D"EN-US" sty=
le=3D"color:#1F497D">=A1=B1, I will fix this in the update.
 Thanks.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D"><o:p>&n=
bsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"color:#1F497D">-Qin<o:=
p></o:p></span></p>
<div>
<div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm =
0cm 0cm">
<p class=3D"MsoNormal" align=3D"left" style=3D"text-align:left"><b><span st=
yle=3D"font-size:10.0pt;font-family:=CB=CE=CC=E5">=B7=A2=BC=FE=C8=CB<span l=
ang=3D"EN-US">:</span></span></b><span lang=3D"EN-US" style=3D"font-size:10=
.0pt;font-family:=CB=CE=CC=E5"> Scharf, Michael (Michael) [mailto:michael.s=
charf@alcatel-lucent.com]
<br>
</span><b><span style=3D"font-size:10.0pt;font-family:=CB=CE=CC=E5">=B7=A2=
=CB=CD=CA=B1=BC=E4<span lang=3D"EN-US">:</span></span></b><span lang=3D"EN-=
US" style=3D"font-size:10.0pt;font-family:=CB=CE=CC=E5"> 2015</span><span s=
tyle=3D"font-size:10.0pt;font-family:=CB=CE=CC=E5">=C4=EA<span lang=3D"EN-U=
S">7</span>=D4=C2<span lang=3D"EN-US">15</span>=C8=D5<span lang=3D"EN-US">
 23:20<br>
</span><b>=CA=D5=BC=FE=C8=CB<span lang=3D"EN-US">:</span></b><span lang=3D"=
EN-US"> Qin Wu; rtg-yang-coord@ietf.org<br>
</span><b>=B3=AD=CB=CD<span lang=3D"EN-US">:</span></b><span lang=3D"EN-US"=
> david.sinicrope@ericsson.com<br>
</span><b>=D6=F7=CC=E2<span lang=3D"EN-US">:</span></b><span lang=3D"EN-US"=
> RE: [Rtg-yang-coord] Update of Routing Area Yang Coordinator's Summary Pa=
ge<o:p></o:p></span></span></p>
</div>
</div>
<p class=3D"MsoNormal" align=3D"left" style=3D"text-align:left"><span lang=
=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;color=
:#1F497D">Thanks. This page is really useful.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;color=
:#1F497D">A small nit: Entry 1 in =A1=B0Routing Area WG Draft Table=A1=B1 i=
s a successor of entry 49 in =A1=B0Routing Area I-D Table=A1=B1, i.e., a du=
plicate, right?<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;color=
:#1F497D">Michael
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;color=
:#1F497D"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:11.0pt;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=3D"MsoNormal" align=3D"left" style=3D"text-align:left"><b><span la=
ng=3D"EN-US" style=3D"font-size:10.0pt;font-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;"> Rtg-yang-coo=
rd [<a href=3D"mailto:rtg-yang-coord-bounces@ietf.org">mailto:rtg-yang-coor=
d-bounces@ietf.org</a>]
<b>On Behalf Of </b>Qin Wu<br>
<b>Sent:</b> Tuesday, July 14, 2015 4:03 PM<br>
<b>To:</b> <a href=3D"mailto:rtg-yang-coord@ietf.org">rtg-<span lang=3D"DE"=
>yang-coord@ietf.org</span></a></span><span lang=3D"DE" style=3D"font-size:=
10.0pt;font-family:&quot;Tahoma&quot;,&quot;sans-serif&quot;"><br>
<b>Cc:</b> <a href=3D"mailto:david.sinicrope@ericsson.com">david.sinicrope@=
ericsson.com</a><br>
<b>Subject:</b> [Rtg-yang-coord] Update of Routing Area Yang Coordinator's =
Summary Page<o:p></o:p></span></p>
</div>
</div>
<p class=3D"MsoNormal" align=3D"left" style=3D"text-align:left"><span lang=
=3D"DE"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Here is the update to Routing A=
rea Yang Coordinator's Summary Page<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><a href=3D"https://trac.tools.i=
etf.org/area/rtg/trac/wiki/RtgYangCoordSummary">https://trac.tools.ietf.org=
/area/rtg/trac/wiki/RtgYangCoordSummary</a><o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">We have 14 YANG model WG drafts=
 in which 4 new was adopted recently.<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Also we have 30 newly developed=
 YANG model I-Ds covering OAM,
<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">network topology, routing, Inte=
rface, Encapsulation and etc.<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">In the summary page, we can see=
 these YANG models have been reorganized<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">In several topic groups. We as =
YANG coordinators believe authors of these YANG model draft need to<o:p></o=
:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">better Coordinate with each oth=
er if your drafts are classified into the same group in the summary page.<o=
:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Thanks!<o:p></o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
<p class=3D"MsoNormal"><span lang=3D"EN-US">Qin and David<o:p></o:p></span>=
</p>
<p class=3D"MsoNormal"><span lang=3D"EN-US"><o:p>&nbsp;</o:p></span></p>
</div>
</div>
</body>
</html>

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From: Xufeng Liu <xufeng.liu@ericsson.com>
To: Ladislav Lhotka <lhotka@nic.cz>, "Rtg-yang-coord@ietf.org" <Rtg-yang-coord@ietf.org>
Thread-Topic: [Rtg-yang-coord] FW: New Version Notification for draft-liu-rtgwg-yang-rip-00.txt
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Hi Lada,

Thanks for the comments. We have updated the model to address them in https=
://tools.ietf.org/html/draft-liu-rtgwg-yang-rip-01.

Please let us know for any further comments.

Thanks,

- Xufeng

> -----Original Message-----
> From: Rtg-yang-coord [mailto:rtg-yang-coord-bounces@ietf.org] On Behalf O=
f
> Ladislav Lhotka
> Sent: Monday, April 27, 2015 5:08 AM
> To: Xufeng Liu; Rtg-yang-coord@ietf.org
> Subject: Re: [Rtg-yang-coord] FW: New Version Notification for draft-liu-=
rtgwg-
> yang-rip-00.txt
>=20
> Hi,
>=20
> I read the draft and here are my comments, mainly YANG-related:
>=20
>    - I'd suggest to define a common "rip" identity from which both
>      "ripv2" and "ripng" are derived. That is:
>=20
>      identity rip {
>        base rt:routing-protocol;
>        description
>          "Identity for the RIP routing protocol.";
>      }
>=20
>      identity ripv2 {
>        base "rip:rip";
>        description "RIPv2";
>      }
>=20
>      identity ripng {
>        base "rip:rip";
>        description "RIPng";
>      }
>=20
>      The benefits of doing so will be apparent with YANG 1.1 where the
>      following "when" statement will be able to cover both versions:
>=20
>      when "derived-from(rt:type, 'ietf-rip', 'rip')";
>=20
[Xufeng] Updated the model with the extra level of identity 'rip'.=20

>      - The purpose of distribute-list should be explained in more
>        detail given that it is not a standard function.
[Xufeng] Updated the model with more descriptions.

>=20
>      - The definition
>=20
>        leaf in-out {
>          type boolean;
>          description
>            "false for 'in', and true for 'out'.";
>        }
>=20
>        looks quite awkward, and without access to the data model it is
>        unclear what, e.g.
>=20
>        "in-out": true
>=20
>        means. I'd suggest something more reader-friendly, such as
>=20
>        leaf direction {
>          type enumeration {
>            enum "in";
>            enum "out";
>          }
>        }
[Xufeng] Took your suggestion to use enumeration instead of Boolean.

>=20
>      - The leaf "distance" seems to have the same role as
>        "rt:protocol/rt:route-preference". Do you have any reason for
>        not using the latter?
[Xufeng] Discussed with ospf people. It seems that you have discussed this =
issue and decided to move this attribute from ip-routing to the individual =
protocol.

>=20
>      - The range for route metric is "0..16" but both RFC 2080 and
>        2453 state that the metric is a value between 1 and 15. I am
>        especially wondering about the value of zero - is it really
>        legal?
[Xufeng] 0 is not legal to be advertised, but the value here is not used fo=
r advertisement. It is used for manipulating metric when a route is redistr=
ibuted.=20

>=20
>      - The "must" statement for leaf "rip:interface" tries to make sure
>        that either IPv4 or IPv6 is enabled on the interface to which
>        the leaf refers. I think the setting of the "ip:enabled" leaf
>        should also be taken into account, so the "must" expression
>        should be
>=20
>        must "(../../../rt:type =3D 'rip:ripv2' and "
>           + "/if:interfaces/if:interface[name=3Dcurrent()]/"
>           + "ip:ipv4/ip:enabled =3D 'true') or "
>           + "(../../../rt:type =3D 'rip:ripng' and "
>           + "/if:interfaces/if:interface[name=3Dcurrent()]/"
>           + "ip:ipv6/ip:enabled =3D 'true')"
[Xufeng] We intend to allow an interface to be configured even if IPv4/IPv6=
 is not enabled.

>=20
> Lada
>=20
> Xufeng Liu <xufeng.liu@ericsson.com> writes:
>=20
> > -----Original Message-----
> > From: internet-drafts@ietf.org [mailto:internet-drafts@ietf.org]
> > Sent: Friday, April 24, 2015 10:10 AM
> > To: Prateek Sarda; Xufeng Liu; Prateek Sarda; Xufeng Liu
> > Subject: New Version Notification for draft-liu-rtgwg-yang-rip-00.txt
> >
> >
> > A new version of I-D, draft-liu-rtgwg-yang-rip-00.txt has been successf=
ully
> submitted by Xufeng Liu and posted to the IETF repository.
> >
> > Name:		draft-liu-rtgwg-yang-rip
> > Revision:	00
> > Title:		A YANG Data Model for Routing Information Protocol (RIP)
> > Document date:	2015-04-24
> > Group:		Individual Submission
> > Pages:		26
> > URL:            http://www.ietf.org/internet-drafts/draft-liu-rtgwg-yan=
g-rip-00.txt
> > Status:         https://datatracker.ietf.org/doc/draft-liu-rtgwg-yang-r=
ip/
> > Htmlized:       http://tools.ietf.org/html/draft-liu-rtgwg-yang-rip-00
> >
> >
> > Abstract:
> >    This document describes a data model for Routing Information Protoco=
l
> >    (RIP). Both RIP version 2 and RIPng are covered.
> >
> >
> >
> >
> > Please note that it may take a couple of minutes from the time of submi=
ssion
> until the htmlized version and diff are available at tools.ietf.org.
> >
> > The IETF Secretariat
> >
> > _______________________________________________
> > Rtg-yang-coord mailing list
> > Rtg-yang-coord@ietf.org
> > https://www.ietf.org/mailman/listinfo/rtg-yang-coord
>=20
> --
> Ladislav Lhotka, CZ.NIC Labs
> PGP Key ID: E74E8C0C
>=20
> _______________________________________________
> Rtg-yang-coord mailing list
> Rtg-yang-coord@ietf.org
> https://www.ietf.org/mailman/listinfo/rtg-yang-coord


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From: Qin Wu <bill.wu@huawei.com>
To: Alia Atlas <akatlas@gmail.com>
Thread-Topic: [Rtg-yang-coord] Update of Routing Area Yang Coordinator's Summary Page
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--_000_B8F9A780D330094D99AF023C5877DABA847C8F7Cnkgeml501mbschi_--


From nobody Fri Jul 24 02:39:50 2015
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Date: Fri, 24 Jul 2015 11:39:41 +0200
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Subject: [Rtg-yang-coord] yang models intended for the mpls wg
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Folks,

There are four yang models intended for the MPLS working group, we have
not yet started the process of adoption as working group documents.
The four documents are:

1. draft-zhang-mpls-tp-yang-oam (announced earlier)
2. draft-zheng-mpls-lsp-ping-yang-cfg (announced now)
3. draft-openconfig-mpls-consolidated-model (announced now)
4. draft-raza-mpls-ldp-mldp-yang (announced now)

/Loa




-- 


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


From nobody Fri Jul 24 20:42:51 2015
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References: <55B207DD.8060502@pi.nu>
From: Mahesh Jethanandani <mjethanandani@gmail.com>
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To: Loa Andersson <loa@pi.nu>
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Subject: Re: [Rtg-yang-coord] yang models intended for the mpls wg
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[with yang doctor hat on]

Loa,

Has there been any discussion around how these models interact with each oth=
er or how the mpls WG would like to see the models structured.

For example, from this list of models (and I admit I have not looked at a co=
mplete list of mpls related yang models or each in detail), a couple of ques=
tions arise.=20

- Is there a plan for a generic mpls yang model?
- plan for a more specific mpls-tp, mpls-te etc. yang model (they could be a=
n extension of the more generic mpls model)?
- plan for a generic ping module (may belong in NETMOD WG)?
- plan for a mpls ping module (again an extension of the more generic ping m=
odule that interfaces with mpls module)?
- plan for a ldp module that interfaces with the mpls module?
- plan for a rsvp-te module that interfaces with mpls-te module?

Having some structure to the models would probably help these and other yang=
 authors in their design.

Thanks.

Mahesh Jethanandani
mjethanandani@gmail.com

> On Jul 24, 2015, at 11:39 AM, Loa Andersson <loa@pi.nu> wrote:
>=20
> Folks,
>=20
> There are four yang models intended for the MPLS working group, we have
> not yet started the process of adoption as working group documents.
> The four documents are:
>=20
> 1. draft-zhang-mpls-tp-yang-oam (announced earlier)
> 2. draft-zheng-mpls-lsp-ping-yang-cfg (announced now)
> 3. draft-openconfig-mpls-consolidated-model (announced now)
> 4. draft-raza-mpls-ldp-mldp-yang (announced now)
>=20
> /Loa
>=20
>=20
>=20
>=20
> --=20
>=20
>=20
> Loa Andersson                        email: loa@mail01.huawei.com
> Senior MPLS Expert                          loa@pi.nu
> Huawei Technologies (consultant)     phone: +46 739 81 21 64
>=20
> _______________________________________________
> Rtg-yang-coord mailing list
> Rtg-yang-coord@ietf.org
> https://www.ietf.org/mailman/listinfo/rtg-yang-coord


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To: Mahesh Jethanandani <mjethanandani@gmail.com>, Loa Andersson <loa@pi.nu>
References: <55B207DD.8060502@pi.nu> <5436B667-6766-4F3D-902E-C4929D4A0240@gmail.com>
From: Tom Taylor <tom.taylor.stds@gmail.com>
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Subject: Re: [Rtg-yang-coord] yang models intended for the mpls wg
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The generic ping module is a LIME work item.

Tom Taylor

On 24/07/2015 9:24 AM, Mahesh Jethanandani wrote:
> [with yang doctor hat on]
>
> Loa,
>
> Has there been any discussion around how these models interact with each other or how the mpls WG would like to see the models structured.
>
> For example, from this list of models (and I admit I have not looked at a complete list of mpls related yang models or each in detail), a couple of questions arise.
>
> - Is there a plan for a generic mpls yang model?
> - plan for a more specific mpls-tp, mpls-te etc. yang model (they could be an extension of the more generic mpls model)?
> - plan for a generic ping module (may belong in NETMOD WG)?
> - plan for a mpls ping module (again an extension of the more generic ping module that interfaces with mpls module)?
> - plan for a ldp module that interfaces with the mpls module?
> - plan for a rsvp-te module that interfaces with mpls-te module?
>
> Having some structure to the models would probably help these and other yang authors in their design.
>
> Thanks.
>
> Mahesh Jethanandani
> mjethanandani@gmail.com
>
>> On Jul 24, 2015, at 11:39 AM, Loa Andersson <loa@pi.nu> wrote:
>>
>> Folks,
>>
>> There are four yang models intended for the MPLS working group, we have
>> not yet started the process of adoption as working group documents.
>> The four documents are:
>>
>> 1. draft-zhang-mpls-tp-yang-oam (announced earlier)
>> 2. draft-zheng-mpls-lsp-ping-yang-cfg (announced now)
>> 3. draft-openconfig-mpls-consolidated-model (announced now)
>> 4. draft-raza-mpls-ldp-mldp-yang (announced now)
>>
>> /Loa
>>
>>
>>
>>
>> --
>>
>>
>> Loa Andersson                        email: loa@mail01.huawei.com
>> Senior MPLS Expert                          loa@pi.nu
>> Huawei Technologies (consultant)     phone: +46 739 81 21 64
>>
>> _______________________________________________
>> Rtg-yang-coord mailing list
>> Rtg-yang-coord@ietf.org
>> https://www.ietf.org/mailman/listinfo/rtg-yang-coord
>
> _______________________________________________
> Rtg-yang-coord mailing list
> Rtg-yang-coord@ietf.org
> https://www.ietf.org/mailman/listinfo/rtg-yang-coord
>


From nobody Sun Jul 26 02:21:17 2015
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Subject: Re: [Rtg-yang-coord] yang models intended for the mpls wg
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Tom, et.al.,

Sure generic "ping" are for LIME, but "ping" and "LSP Ping" are not
the same.

/Loa

On 2015-07-25 14:18, Tom Taylor wrote:
> The generic ping module is a LIME work item.
>
> Tom Taylor
>
> On 24/07/2015 9:24 AM, Mahesh Jethanandani wrote:
>> [with yang doctor hat on]
>>
>> Loa,
>>
>> Has there been any discussion around how these models interact with
>> each other or how the mpls WG would like to see the models structured.
>>
>> For example, from this list of models (and I admit I have not looked
>> at a complete list of mpls related yang models or each in detail), a
>> couple of questions arise.
>>
>> - Is there a plan for a generic mpls yang model?
>> - plan for a more specific mpls-tp, mpls-te etc. yang model (they
>> could be an extension of the more generic mpls model)?
>> - plan for a generic ping module (may belong in NETMOD WG)?
>> - plan for a mpls ping module (again an extension of the more generic
>> ping module that interfaces with mpls module)?
>> - plan for a ldp module that interfaces with the mpls module?
>> - plan for a rsvp-te module that interfaces with mpls-te module?
>>
>> Having some structure to the models would probably help these and
>> other yang authors in their design.
>>
>> Thanks.
>>
>> Mahesh Jethanandani
>> mjethanandani@gmail.com
>>
>>> On Jul 24, 2015, at 11:39 AM, Loa Andersson <loa@pi.nu> wrote:
>>>
>>> Folks,
>>>
>>> There are four yang models intended for the MPLS working group, we have
>>> not yet started the process of adoption as working group documents.
>>> The four documents are:
>>>
>>> 1. draft-zhang-mpls-tp-yang-oam (announced earlier)
>>> 2. draft-zheng-mpls-lsp-ping-yang-cfg (announced now)
>>> 3. draft-openconfig-mpls-consolidated-model (announced now)
>>> 4. draft-raza-mpls-ldp-mldp-yang (announced now)
>>>
>>> /Loa
>>>
>>>
>>>
>>>
>>> --
>>>
>>>
>>> Loa Andersson                        email: loa@mail01.huawei.com
>>> Senior MPLS Expert                          loa@pi.nu
>>> Huawei Technologies (consultant)     phone: +46 739 81 21 64
>>>
>>> _______________________________________________
>>> Rtg-yang-coord mailing list
>>> Rtg-yang-coord@ietf.org
>>> https://www.ietf.org/mailman/listinfo/rtg-yang-coord
>>
>> _______________________________________________
>> Rtg-yang-coord mailing list
>> Rtg-yang-coord@ietf.org
>> https://www.ietf.org/mailman/listinfo/rtg-yang-coord
>>


From nobody Sun Jul 26 02:54:42 2015
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To: Mahesh Jethanandani <mjethanandani@gmail.com>, Loa Andersson <loa@pi.nu>
References: <55B207DD.8060502@pi.nu> <5436B667-6766-4F3D-902E-C4929D4A0240@gmail.com>
From: Lou Berger <lberger@labn.net>
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Subject: Re: [Rtg-yang-coord] yang models intended for the mpls wg
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Mahesh ,
    Some of what you are asking about is happening over in teas and was
discussed in Prague:
          > 3         13:20         20         Title:         YANG Data
Model for
           TE Topologies
          >                        Draft:
           http://tools.ietf.org/html/draft-ietf-teas-yang-te-topo
          >                        Presenter:         Xufeng Liu / Igor
Bryskin
         
           Presentation:
           https://www.ietf.org/proceedings/93/slides/slides-93-teas-3.pdf

          > 4         13:40         25         Title:         RSVP/TE
Yang Models
          >                        Draft:
           http://tools.ietf.org/html/draft-saad-teas-yang-te
           http://tools.ietf.org/html/draft-saad-teas-yang-rsvp
          >                        Presenter:         Tarek Saad
          >       Slides:
           https://www.ietf.org/proceedings/93/slides/slides-93-teas-4.pdf

Also the following is likely to end up being both discussed in MPLS and
TEAS as it includes TE and non-TE related information:
         
          > 5         14:05         10         Title:         MPLS / TE
Model for
           Service Provider Networks
          >                        Draft:
          
https://tools.ietf.org/html/draft-openconfig-mpls-consolidated-model-01
          >                        Presenter:         Ina Minei
          >       Slides:
           https://www.ietf.org/proceedings/93/slides/slides-93-teas-5.pdf
         
Lou
On 7/24/2015 9:24 AM, Mahesh Jethanandani wrote:
> [with yang doctor hat on]
>
> Loa,
>
> Has there been any discussion around how these models interact with each other or how the mpls WG would like to see the models structured.
>
> For example, from this list of models (and I admit I have not looked at a complete list of mpls related yang models or each in detail), a couple of questions arise. 
>
> - Is there a plan for a generic mpls yang model?
> - plan for a more specific mpls-tp, mpls-te etc. yang model (they could be an extension of the more generic mpls model)?
> - plan for a generic ping module (may belong in NETMOD WG)?
> - plan for a mpls ping module (again an extension of the more generic ping module that interfaces with mpls module)?
> - plan for a ldp module that interfaces with the mpls module?
> - plan for a rsvp-te module that interfaces with mpls-te module?
>
> Having some structure to the models would probably help these and other yang authors in their design.
>
> Thanks.
>
> Mahesh Jethanandani
> mjethanandani@gmail.com
>
>> On Jul 24, 2015, at 11:39 AM, Loa Andersson <loa@pi.nu> wrote:
>>
>> Folks,
>>
>> There are four yang models intended for the MPLS working group, we have
>> not yet started the process of adoption as working group documents.
>> The four documents are:
>>
>> 1. draft-zhang-mpls-tp-yang-oam (announced earlier)
>> 2. draft-zheng-mpls-lsp-ping-yang-cfg (announced now)
>> 3. draft-openconfig-mpls-consolidated-model (announced now)
>> 4. draft-raza-mpls-ldp-mldp-yang (announced now)
>>
>> /Loa
>>
>>
>>
>>
>> -- 
>>
>>
>> Loa Andersson                        email: loa@mail01.huawei.com
>> Senior MPLS Expert                          loa@pi.nu
>> Huawei Technologies (consultant)     phone: +46 739 81 21 64
>>
>> _______________________________________________
>> Rtg-yang-coord mailing list
>> Rtg-yang-coord@ietf.org
>> https://www.ietf.org/mailman/listinfo/rtg-yang-coord
> _______________________________________________
> Rtg-yang-coord mailing list
> Rtg-yang-coord@ietf.org
> https://www.ietf.org/mailman/listinfo/rtg-yang-coord
>



From nobody Sun Jul 26 07:31:52 2015
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From: Mahesh Jethanandani <mjethanandani@gmail.com>
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To: Lou Berger <lberger@labn.net>
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Subject: Re: [Rtg-yang-coord] yang models intended for the mpls wg
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Lou,

I like the approach taken in the draft =
draft-openconfig-mpls-consolidated-model. In particular, the approach =
represented in this tree model makes sense to me.

   +--rw mpls!
         +--rw global
         |     ...
         +--rw te-global-attributes
         |     ...
         +--rw signaling-protocols
         |     ...
         +--rw lsps
               ...

However, by its own admission, the draft says:

This model does not aim to be feature complete (i.e., cover all
   possible aspects or features of MPLS).=20

My suggestion would be for the MPLS WG to take up the model structure as =
represented above and to do a more complete work of including all =
features of MPLS, e.g. GMPLS.=20

Thanks.

Mahesh Jethanandani
mjethanandani@gmail.com






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<html><head><meta http-equiv="Content-Type" content="text/html charset=windows-1252"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Lou,<div class=""><br class=""></div><div class="">I like the approach taken in the draft&nbsp;draft-openconfig-mpls-consolidated-model. In particular, the approach represented in this tree model makes sense to me.</div><div class=""><br class=""></div><div class=""><pre class="newpage" style="font-size: 13.3333330154419px; margin-top: 0px; margin-bottom: 0px; page-break-before: always; widows: 1;">   +--rw mpls!
         +--rw global
         |     ...
         +--rw te-global-attributes
         |     ...
         +--rw signaling-protocols
         |     ...
         +--rw lsps
               ...
</pre></div><div class=""><br class=""></div><div class="">However, by its own admission, the draft says:</div><div class=""><br class=""></div><div class=""><pre class="newpage" style="font-size: 13.3333330154419px; margin-top: 0px; margin-bottom: 0px; page-break-before: always; widows: 1;">This model does not aim to be feature complete (i.e., cover all
   possible aspects or features of MPLS). </pre><div class=""><br class=""></div></div><div class="">My suggestion would be for the MPLS WG to take up the model structure as represented above and to do a more complete work of including all features of MPLS, e.g. GMPLS.&nbsp;</div><div class=""><br class=""></div><div class="">Thanks.</div><div class=""><br class=""></div><div class=""><div apple-content-edited="true" class="">
<div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div class="">Mahesh Jethanandani</div><div class=""><a href="mailto:mjethanandani@gmail.com" class="">mjethanandani@gmail.com</a></div><div class=""><br class=""></div></div><br class="Apple-interchange-newline"></div><br class="Apple-interchange-newline"><br class="Apple-interchange-newline">
</div>
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Date: Sun, 26 Jul 2015 21:24:06 +0200
From: Juergen Schoenwaelder <j.schoenwaelder@jacobs-university.de>
To: "Acee Lindem (acee)" <acee@cisco.com>
Message-ID: <20150726192405.GA17645@elstar.local>
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References: <55B207DD.8060502@pi.nu> <5436B667-6766-4F3D-902E-C4929D4A0240@gmail.com> <55B4AE36.5040203@labn.net> <B0B12FA2-5510-4AD4-8964-DF21B8FAD6DA@gmail.com> <D1DAA351.298BB%acee@cisco.com>
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Subject: Re: [Rtg-yang-coord] yang models intended for the mpls wg
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Dear Acee,

please note that the interfaces model plus the IP model plus the core
system model plus the SNMP configuration model the IETF agreed on are
defined in RFC 7223, RFC 7277, RFC 7317, and RFC 7407. All these RFCs
were produced by the NETMOD working group.  Work is starting in other
SDOs to extend these models. Hence, I think any attempts to replace
them with something different should not only be discussed on the
NETMOD list but also seek support from the NETMOD working group.

Note that https://www.ietf.org/mailman/listinfo/rtg-yang-coord says:

    The rtg-yang-coord mailing list will provide a forum for
    coordination of the development of YANG models being worked on for
    Routing, in order to provide a consistent view to the NMS.

It seems some of the content of draft-rtgyangdt-rtgwg-device-model-00
seems to leave the routing scope.

/js

On Sun, Jul 26, 2015 at 06:48:10PM +0000, Acee Lindem (acee) wrote:
> Hi Mahesh,
> 
> Please comment on https://datatracker.ietf.org/doc/draft-rtgyangdt-rtgwg-device-model/ as this is the latest view of the design team.
> 
> Thanks,
> Acee
> 
> From: Rtg-yang-coord <rtg-yang-coord-bounces@ietf.org<mailto:rtg-yang-coord-bounces@ietf.org>> on behalf of Mahesh Jethanandani <mjethanandani@gmail.com<mailto:mjethanandani@gmail.com>>
> Date: Sunday, July 26, 2015 at 4:31 PM
> To: Lou Berger <lberger@labn.net<mailto:lberger@labn.net>>
> Cc: Routing YANG <rtg-yang-coord@ietf.org<mailto:rtg-yang-coord@ietf.org>>, YANG Doctors <yang-doctors@ietf.org<mailto:yang-doctors@ietf.org>>, Loa Andersson <loa@pi.nu<mailto:loa@pi.nu>>
> Subject: Re: [Rtg-yang-coord] yang models intended for the mpls wg
> 
> Lou,
> 
> I like the approach taken in the draft draft-openconfig-mpls-consolidated-model. In particular, the approach represented in this tree model makes sense to me.
> 
> 
>    +--rw mpls!
>          +--rw global
>          |     ...
>          +--rw te-global-attributes
>          |     ...
>          +--rw signaling-protocols
>          |     ...
>          +--rw lsps
>                ...
> 
> 
> However, by its own admission, the draft says:
> 
> 
> This model does not aim to be feature complete (i.e., cover all
>    possible aspects or features of MPLS).
> 
> My suggestion would be for the MPLS WG to take up the model structure as represented above and to do a more complete work of including all features of MPLS, e.g. GMPLS.
> 
> Thanks.
> 
> Mahesh Jethanandani
> mjethanandani@gmail.com<mailto:mjethanandani@gmail.com>
> 
> 
> 
> 
> 

> _______________________________________________
> Rtg-yang-coord mailing list
> Rtg-yang-coord@ietf.org
> https://www.ietf.org/mailman/listinfo/rtg-yang-coord


-- 
Juergen Schoenwaelder           Jacobs University Bremen gGmbH
Phone: +49 421 200 3587         Campus Ring 1 | 28759 Bremen | Germany
Fax:   +49 421 200 3103         <http://www.jacobs-university.de/>


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From: "Acee Lindem (acee)" <acee@cisco.com>
To: Juergen Schoenwaelder <j.schoenwaelder@jacobs-university.de>
Thread-Topic: Routing YANG Design Team Scope 
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From nobody Sun Jul 26 13:49:38 2015
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Date: Sun, 26 Jul 2015 22:49:27 +0200
From: Juergen Schoenwaelder <j.schoenwaelder@jacobs-university.de>
To: "Acee Lindem (acee)" <acee@cisco.com>
Message-ID: <20150726204927.GA17784@elstar.local>
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Subject: Re: [Rtg-yang-coord] Routing YANG Design Team Scope
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Acee,

you pointed to a document that seems to go out of the scope of this
routing yang design team and since this document is called
draft-rtgyangdt-rtgwg-* so I felt it is necessary to react.

/js

On Sun, Jul 26, 2015 at 07:50:40PM +0000, Acee Lindem (acee) wrote:
> Juergen, 
> 
> Since this E-mail thread is about the hierarchy and granularity of MPLS
> models, Iâ€™m somewhat confused by your response. Nevertheless, Iâ€™ve updated
> the subject line to correspond to your concern.
> 
> Our assumption is that the Routing YANG design team will attempt to use
> the existing models but will not be constrained by them. However, I agree
> that any changes or augmentations to the existing NETMOD RFCs would need
> to be reviewed in the NETMOD WG.
> 
> Thanks,
> Acee 
> 
> On 7/26/15, 3:24 PM, "Juergen Schoenwaelder"
> <j.schoenwaelder@jacobs-university.de> wrote:
> 
> >Dear Acee,
> >
> >please note that the interfaces model plus the IP model plus the core
> >system model plus the SNMP configuration model the IETF agreed on are
> >defined in RFC 7223, RFC 7277, RFC 7317, and RFC 7407. All these RFCs
> >were produced by the NETMOD working group.  Work is starting in other
> >SDOs to extend these models. Hence, I think any attempts to replace
> >them with something different should not only be discussed on the
> >NETMOD list but also seek support from the NETMOD working group.
> >
> >Note that https://www.ietf.org/mailman/listinfo/rtg-yang-coord says:
> >
> >    The rtg-yang-coord mailing list will provide a forum for
> >    coordination of the development of YANG models being worked on for
> >    Routing, in order to provide a consistent view to the NMS.
> >
> >It seems some of the content of draft-rtgyangdt-rtgwg-device-model-00
> >seems to leave the routing scope.
> >
> >/js
> >
> >On Sun, Jul 26, 2015 at 06:48:10PM +0000, Acee Lindem (acee) wrote:
> >> Hi Mahesh,
> >> 
> >> Please comment on
> >>https://datatracker.ietf.org/doc/draft-rtgyangdt-rtgwg-device-model/ as
> >>this is the latest view of the design team.
> >> 
> >> Thanks,
> >> Acee
> >> 
> >> From: Rtg-yang-coord
> >><rtg-yang-coord-bounces@ietf.org<mailto:rtg-yang-coord-bounces@ietf.org>>
> >> on behalf of Mahesh Jethanandani
> >><mjethanandani@gmail.com<mailto:mjethanandani@gmail.com>>
> >> Date: Sunday, July 26, 2015 at 4:31 PM
> >> To: Lou Berger <lberger@labn.net<mailto:lberger@labn.net>>
> >> Cc: Routing YANG
> >><rtg-yang-coord@ietf.org<mailto:rtg-yang-coord@ietf.org>>, YANG Doctors
> >><yang-doctors@ietf.org<mailto:yang-doctors@ietf.org>>, Loa Andersson
> >><loa@pi.nu<mailto:loa@pi.nu>>
> >> Subject: Re: [Rtg-yang-coord] yang models intended for the mpls wg
> >> 
> >> Lou,
> >> 
> >> I like the approach taken in the draft
> >>draft-openconfig-mpls-consolidated-model. In particular, the approach
> >>represented in this tree model makes sense to me.
> >> 
> >> 
> >>    +--rw mpls!
> >>          +--rw global
> >>          |     ...
> >>          +--rw te-global-attributes
> >>          |     ...
> >>          +--rw signaling-protocols
> >>          |     ...
> >>          +--rw lsps
> >>                ...
> >> 
> >> 
> >> However, by its own admission, the draft says:
> >> 
> >> 
> >> This model does not aim to be feature complete (i.e., cover all
> >>    possible aspects or features of MPLS).
> >> 
> >> My suggestion would be for the MPLS WG to take up the model structure
> >>as represented above and to do a more complete work of including all
> >>features of MPLS, e.g. GMPLS.
> >> 
> >> Thanks.
> >> 
> >> Mahesh Jethanandani
> >> mjethanandani@gmail.com<mailto:mjethanandani@gmail.com>
> >> 
> >> 
> >> 
> >> 
> >> 
> >
> >> _______________________________________________
> >> Rtg-yang-coord mailing list
> >> Rtg-yang-coord@ietf.org
> >> https://www.ietf.org/mailman/listinfo/rtg-yang-coord
> >
> >
> >-- 
> >Juergen Schoenwaelder           Jacobs University Bremen gGmbH
> >Phone: +49 421 200 3587         Campus Ring 1 | 28759 Bremen | Germany
> >Fax:   +49 421 200 3103         <http://www.jacobs-university.de/>
> 

-- 
Juergen Schoenwaelder           Jacobs University Bremen gGmbH
Phone: +49 421 200 3587         Campus Ring 1 | 28759 Bremen | Germany
Fax:   +49 421 200 3103         <http://www.jacobs-university.de/>


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References: <D1DAB06D.298C6%acee@cisco.com> <20150726204927.GA17784@elstar.local>
To: "Acee Lindem (acee)" <acee@cisco.com>
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Archived-At: <http://mailarchive.ietf.org/arch/msg/rtg-yang-coord/R30WPOH-a08uei4tyP2FHTwedTE>
Cc: "rtg-yang-coord@ietf.org" <Rtg-yang-coord@ietf.org>, YANG Doctors <yang-doctors@ietf.org>, Lou Berger <lberger@labn.net>, Juergen Schoenwaelder <j.schoenwaelder@jacobs-university.de>, Loa Andersson <loa@pi.nu>
Subject: Re: [Rtg-yang-coord] Routing YANG Design Team Scope
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Acee,

Juergen=E2=80=99s concerns aside, I am curious about the intent of the =
design. I see the device model as a abstract model that allows for =
plenty of extensions. Since the discussion started with MPLS, I am going =
to focus on that part for now.=20

BTW, the TOC in the html version of the draft have no hyper links.

I see that the mpls model in the draft to be very similar to the one in =
the OC MPLS draft. Is the idea that the device model is trying to define =
everything under a device tree? I would have thought that the device =
model would define networking-instance as a 'type identityref=E2=80=99 =
which would form a base identity, and from which specific =
networking-instance types would be derived, such as mpls - much like =
what the interfaces model does for all types of interfaces. That will =
allow the device model to be a fairly compact model, leaving the feature =
specific models to be developed elsewhere.

Thanks.

> On Jul 26, 2015, at 1:49 PM, Juergen Schoenwaelder =
<j.schoenwaelder@jacobs-university.de> wrote:
>=20
> Acee,
>=20
> you pointed to a document that seems to go out of the scope of this
> routing yang design team and since this document is called
> draft-rtgyangdt-rtgwg-* so I felt it is necessary to react.
>=20
> /js
>=20
> On Sun, Jul 26, 2015 at 07:50:40PM +0000, Acee Lindem (acee) wrote:
>> Juergen,=20
>>=20
>> Since this E-mail thread is about the hierarchy and granularity of =
MPLS
>> models, I=E2=80=99m somewhat confused by your response. Nevertheless, =
I=E2=80=99ve updated
>> the subject line to correspond to your concern.
>>=20
>> Our assumption is that the Routing YANG design team will attempt to =
use
>> the existing models but will not be constrained by them. However, I =
agree
>> that any changes or augmentations to the existing NETMOD RFCs would =
need
>> to be reviewed in the NETMOD WG.
>>=20
>> Thanks,
>> Acee=20
>>=20
>> On 7/26/15, 3:24 PM, "Juergen Schoenwaelder"
>> <j.schoenwaelder@jacobs-university.de> wrote:
>>=20
>>> Dear Acee,
>>>=20
>>> please note that the interfaces model plus the IP model plus the =
core
>>> system model plus the SNMP configuration model the IETF agreed on =
are
>>> defined in RFC 7223, RFC 7277, RFC 7317, and RFC 7407. All these =
RFCs
>>> were produced by the NETMOD working group.  Work is starting in =
other
>>> SDOs to extend these models. Hence, I think any attempts to replace
>>> them with something different should not only be discussed on the
>>> NETMOD list but also seek support from the NETMOD working group.
>>>=20
>>> Note that https://www.ietf.org/mailman/listinfo/rtg-yang-coord says:
>>>=20
>>>   The rtg-yang-coord mailing list will provide a forum for
>>>   coordination of the development of YANG models being worked on for
>>>   Routing, in order to provide a consistent view to the NMS.
>>>=20
>>> It seems some of the content of =
draft-rtgyangdt-rtgwg-device-model-00
>>> seems to leave the routing scope.
>>>=20
>>> /js
>>>=20
>>> On Sun, Jul 26, 2015 at 06:48:10PM +0000, Acee Lindem (acee) wrote:
>>>> Hi Mahesh,
>>>>=20
>>>> Please comment on
>>>> =
https://datatracker.ietf.org/doc/draft-rtgyangdt-rtgwg-device-model/ as
>>>> this is the latest view of the design team.
>>>>=20
>>>> Thanks,
>>>> Acee
>>>>=20
>>>> From: Rtg-yang-coord
>>>> =
<rtg-yang-coord-bounces@ietf.org<mailto:rtg-yang-coord-bounces@ietf.org>>
>>>> on behalf of Mahesh Jethanandani
>>>> <mjethanandani@gmail.com<mailto:mjethanandani@gmail.com>>
>>>> Date: Sunday, July 26, 2015 at 4:31 PM
>>>> To: Lou Berger <lberger@labn.net<mailto:lberger@labn.net>>
>>>> Cc: Routing YANG
>>>> <rtg-yang-coord@ietf.org<mailto:rtg-yang-coord@ietf.org>>, YANG =
Doctors
>>>> <yang-doctors@ietf.org<mailto:yang-doctors@ietf.org>>, Loa =
Andersson
>>>> <loa@pi.nu<mailto:loa@pi.nu>>
>>>> Subject: Re: [Rtg-yang-coord] yang models intended for the mpls wg
>>>>=20
>>>> Lou,
>>>>=20
>>>> I like the approach taken in the draft
>>>> draft-openconfig-mpls-consolidated-model. In particular, the =
approach
>>>> represented in this tree model makes sense to me.
>>>>=20
>>>>=20
>>>>   +--rw mpls!
>>>>         +--rw global
>>>>         |     ...
>>>>         +--rw te-global-attributes
>>>>         |     ...
>>>>         +--rw signaling-protocols
>>>>         |     ...
>>>>         +--rw lsps
>>>>               ...
>>>>=20
>>>>=20
>>>> However, by its own admission, the draft says:
>>>>=20
>>>>=20
>>>> This model does not aim to be feature complete (i.e., cover all
>>>>   possible aspects or features of MPLS).
>>>>=20
>>>> My suggestion would be for the MPLS WG to take up the model =
structure
>>>> as represented above and to do a more complete work of including =
all
>>>> features of MPLS, e.g. GMPLS.
>>>>=20
>>>> Thanks.
>>>>=20
>>>> Mahesh Jethanandani
>>>> mjethanandani@gmail.com<mailto:mjethanandani@gmail.com>
>>>>=20
>>>>=20
>>>>=20
>>>>=20
>>>>=20
>>>=20
>>>> _______________________________________________
>>>> Rtg-yang-coord mailing list
>>>> Rtg-yang-coord@ietf.org
>>>> https://www.ietf.org/mailman/listinfo/rtg-yang-coord
>>>=20
>>>=20
>>> --=20
>>> Juergen Schoenwaelder           Jacobs University Bremen gGmbH
>>> Phone: +49 421 200 3587         Campus Ring 1 | 28759 Bremen | =
Germany
>>> Fax:   +49 421 200 3103         <http://www.jacobs-university.de/>
>>=20
>=20
> --=20
> Juergen Schoenwaelder           Jacobs University Bremen gGmbH
> Phone: +49 421 200 3587         Campus Ring 1 | 28759 Bremen | Germany
> Fax:   +49 421 200 3103         <http://www.jacobs-university.de/>

Mahesh Jethanandani
mjethanandani@gmail.com






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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html =
charset=3Dutf-8"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" =
class=3D"">Acee,<div class=3D""><br class=3D""></div><div =
class=3D"">Juergen=E2=80=99s concerns aside, I am curious about the =
intent of the design. I see the device model as a abstract model that =
allows for plenty of extensions. Since the discussion started with MPLS, =
I am going to focus on that part for now.&nbsp;</div><div class=3D""><br =
class=3D""></div><div class=3D"">BTW, the TOC in the html version of the =
draft have no hyper links.</div><div class=3D""><br class=3D""></div><div =
class=3D"">I see that the mpls model in the draft to be very similar to =
the one in the OC MPLS draft. Is the idea that the device model is =
trying to define everything under a device tree? I would have thought =
that the device model would define networking-instance as a 'type =
identityref=E2=80=99 which would form a base identity, and from which =
specific networking-instance types would be derived, such as mpls - much =
like what the interfaces model does for all types of interfaces. That =
will allow the device model to be a fairly compact model, leaving the =
feature specific models to be developed elsewhere.</div><div =
class=3D""><br class=3D""></div><div class=3D"">Thanks.</div><div =
class=3D""><br class=3D""><div><blockquote type=3D"cite" class=3D""><div =
class=3D"">On Jul 26, 2015, at 1:49 PM, Juergen Schoenwaelder &lt;<a =
href=3D"mailto:j.schoenwaelder@jacobs-university.de" =
class=3D"">j.schoenwaelder@jacobs-university.de</a>&gt; wrote:</div><br =
class=3D"Apple-interchange-newline"><div class=3D"">Acee,<br =
class=3D""><br class=3D"">you pointed to a document that seems to go out =
of the scope of this<br class=3D"">routing yang design team and since =
this document is called<br class=3D"">draft-rtgyangdt-rtgwg-* so I felt =
it is necessary to react.<br class=3D""><br class=3D"">/js<br =
class=3D""><br class=3D"">On Sun, Jul 26, 2015 at 07:50:40PM +0000, Acee =
Lindem (acee) wrote:<br class=3D""><blockquote type=3D"cite" =
class=3D"">Juergen, <br class=3D""><br class=3D"">Since this E-mail =
thread is about the hierarchy and granularity of MPLS<br =
class=3D"">models, I=E2=80=99m somewhat confused by your response. =
Nevertheless, I=E2=80=99ve updated<br class=3D"">the subject line to =
correspond to your concern.<br class=3D""><br class=3D"">Our assumption =
is that the Routing YANG design team will attempt to use<br class=3D"">the=
 existing models but will not be constrained by them. However, I =
agree<br class=3D"">that any changes or augmentations to the existing =
NETMOD RFCs would need<br class=3D"">to be reviewed in the NETMOD WG.<br =
class=3D""><br class=3D"">Thanks,<br class=3D"">Acee <br class=3D""><br =
class=3D"">On 7/26/15, 3:24 PM, "Juergen Schoenwaelder"<br =
class=3D"">&lt;<a href=3D"mailto:j.schoenwaelder@jacobs-university.de" =
class=3D"">j.schoenwaelder@jacobs-university.de</a>&gt; wrote:<br =
class=3D""><br class=3D""><blockquote type=3D"cite" class=3D"">Dear =
Acee,<br class=3D""><br class=3D"">please note that the interfaces model =
plus the IP model plus the core<br class=3D"">system model plus the SNMP =
configuration model the IETF agreed on are<br class=3D"">defined in RFC =
7223, RFC 7277, RFC 7317, and RFC 7407. All these RFCs<br class=3D"">were =
produced by the NETMOD working group. &nbsp;Work is starting in other<br =
class=3D"">SDOs to extend these models. Hence, I think any attempts to =
replace<br class=3D"">them with something different should not only be =
discussed on the<br class=3D"">NETMOD list but also seek support from =
the NETMOD working group.<br class=3D""><br class=3D"">Note that <a =
href=3D"https://www.ietf.org/mailman/listinfo/rtg-yang-coord" =
class=3D"">https://www.ietf.org/mailman/listinfo/rtg-yang-coord</a> =
says:<br class=3D""><br class=3D""> &nbsp;&nbsp;The rtg-yang-coord =
mailing list will provide a forum for<br class=3D""> =
&nbsp;&nbsp;coordination of the development of YANG models being worked =
on for<br class=3D""> &nbsp;&nbsp;Routing, in order to provide a =
consistent view to the NMS.<br class=3D""><br class=3D"">It seems some =
of the content of draft-rtgyangdt-rtgwg-device-model-00<br =
class=3D"">seems to leave the routing scope.<br class=3D""><br =
class=3D"">/js<br class=3D""><br class=3D"">On Sun, Jul 26, 2015 at =
06:48:10PM +0000, Acee Lindem (acee) wrote:<br class=3D""><blockquote =
type=3D"cite" class=3D"">Hi Mahesh,<br class=3D""><br class=3D"">Please =
comment on<br class=3D""><a =
href=3D"https://datatracker.ietf.org/doc/draft-rtgyangdt-rtgwg-device-mode=
l/" =
class=3D"">https://datatracker.ietf.org/doc/draft-rtgyangdt-rtgwg-device-m=
odel/</a> as<br class=3D"">this is the latest view of the design =
team.<br class=3D""><br class=3D"">Thanks,<br class=3D"">Acee<br =
class=3D""><br class=3D"">From: Rtg-yang-coord<br class=3D"">&lt;<a =
href=3D"mailto:rtg-yang-coord-bounces@ietf.org" =
class=3D"">rtg-yang-coord-bounces@ietf.org</a>&lt;<a =
href=3D"mailto:rtg-yang-coord-bounces@ietf.org" =
class=3D"">mailto:rtg-yang-coord-bounces@ietf.org</a>&gt;&gt;<br =
class=3D"">on behalf of Mahesh Jethanandani<br class=3D"">&lt;<a =
href=3D"mailto:mjethanandani@gmail.com" =
class=3D"">mjethanandani@gmail.com</a>&lt;<a =
href=3D"mailto:mjethanandani@gmail.com" =
class=3D"">mailto:mjethanandani@gmail.com</a>&gt;&gt;<br class=3D"">Date: =
Sunday, July 26, 2015 at 4:31 PM<br class=3D"">To: Lou Berger &lt;<a =
href=3D"mailto:lberger@labn.net" class=3D"">lberger@labn.net</a>&lt;<a =
href=3D"mailto:lberger@labn.net" =
class=3D"">mailto:lberger@labn.net</a>&gt;&gt;<br class=3D"">Cc: Routing =
YANG<br class=3D"">&lt;<a href=3D"mailto:rtg-yang-coord@ietf.org" =
class=3D"">rtg-yang-coord@ietf.org</a>&lt;<a =
href=3D"mailto:rtg-yang-coord@ietf.org" =
class=3D"">mailto:rtg-yang-coord@ietf.org</a>&gt;&gt;, YANG Doctors<br =
class=3D"">&lt;<a href=3D"mailto:yang-doctors@ietf.org" =
class=3D"">yang-doctors@ietf.org</a>&lt;<a =
href=3D"mailto:yang-doctors@ietf.org" =
class=3D"">mailto:yang-doctors@ietf.org</a>&gt;&gt;, Loa Andersson<br =
class=3D"">&lt;<a href=3D"mailto:loa@pi.nu" class=3D"">loa@pi.nu</a>&lt;<a=
 href=3D"mailto:loa@pi.nu" class=3D"">mailto:loa@pi.nu</a>&gt;&gt;<br =
class=3D"">Subject: Re: [Rtg-yang-coord] yang models intended for the =
mpls wg<br class=3D""><br class=3D"">Lou,<br class=3D""><br class=3D"">I =
like the approach taken in the draft<br =
class=3D"">draft-openconfig-mpls-consolidated-model. In particular, the =
approach<br class=3D"">represented in this tree model makes sense to =
me.<br class=3D""><br class=3D""><br class=3D""> &nbsp;&nbsp;+--rw =
mpls!<br class=3D""> =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;+--rw global<br =
class=3D""> &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;| =
&nbsp;&nbsp;&nbsp;&nbsp;...<br class=3D""> =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;+--rw =
te-global-attributes<br class=3D""> =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;| =
&nbsp;&nbsp;&nbsp;&nbsp;...<br class=3D""> =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;+--rw =
signaling-protocols<br class=3D""> =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;| =
&nbsp;&nbsp;&nbsp;&nbsp;...<br class=3D""> =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;+--rw lsps<br class=3D""> =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;...<br class=3D""><br class=3D""><br class=3D"">However, by =
its own admission, the draft says:<br class=3D""><br class=3D""><br =
class=3D"">This model does not aim to be feature complete (i.e., cover =
all<br class=3D""> &nbsp;&nbsp;possible aspects or features of MPLS).<br =
class=3D""><br class=3D"">My suggestion would be for the MPLS WG to take =
up the model structure<br class=3D"">as represented above and to do a =
more complete work of including all<br class=3D"">features of MPLS, e.g. =
GMPLS.<br class=3D""><br class=3D"">Thanks.<br class=3D""><br =
class=3D"">Mahesh Jethanandani<br class=3D""><a =
href=3D"mailto:mjethanandani@gmail.com" =
class=3D"">mjethanandani@gmail.com</a>&lt;<a =
href=3D"mailto:mjethanandani@gmail.com" =
class=3D"">mailto:mjethanandani@gmail.com</a>&gt;<br class=3D""><br =
class=3D""><br class=3D""><br class=3D""><br class=3D""><br =
class=3D""></blockquote><br class=3D""><blockquote type=3D"cite" =
class=3D"">_______________________________________________<br =
class=3D"">Rtg-yang-coord mailing list<br class=3D""><a =
href=3D"mailto:Rtg-yang-coord@ietf.org" =
class=3D"">Rtg-yang-coord@ietf.org</a><br =
class=3D"">https://www.ietf.org/mailman/listinfo/rtg-yang-coord<br =
class=3D""></blockquote><br class=3D""><br class=3D"">-- <br =
class=3D"">Juergen Schoenwaelder =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Jacobs =
University Bremen gGmbH<br class=3D"">Phone: +49 421 200 3587 =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Campus Ring 1 | 28759 =
Bremen | Germany<br class=3D"">Fax: &nbsp;&nbsp;+49 421 200 3103 =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&lt;<a =
href=3D"http://www.jacobs-university.de/" =
class=3D"">http://www.jacobs-university.de/</a>&gt;<br =
class=3D""></blockquote><br class=3D""></blockquote><br class=3D"">-- =
<br class=3D"">Juergen Schoenwaelder =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Jacobs =
University Bremen gGmbH<br class=3D"">Phone: +49 421 200 3587 =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Campus Ring 1 | 28759 =
Bremen | Germany<br class=3D"">Fax: &nbsp;&nbsp;+49 421 200 3103 =
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&lt;<a =
href=3D"http://www.jacobs-university.de/" =
class=3D"">http://www.jacobs-university.de/</a>&gt;<br =
class=3D""></div></blockquote></div><br class=3D""><div =
apple-content-edited=3D"true" class=3D"">
<div style=3D"color: rgb(0, 0, 0); letter-spacing: normal; orphans: =
auto; text-align: start; text-indent: 0px; text-transform: none; =
white-space: normal; widows: auto; word-spacing: 0px; =
-webkit-text-stroke-width: 0px; word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" =
class=3D""><div style=3D"color: rgb(0, 0, 0); letter-spacing: normal; =
orphans: auto; text-align: start; text-indent: 0px; text-transform: =
none; white-space: normal; widows: auto; word-spacing: 0px; =
-webkit-text-stroke-width: 0px; word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" =
class=3D""><div class=3D"">Mahesh Jethanandani</div><div class=3D""><a =
href=3D"mailto:mjethanandani@gmail.com" =
class=3D"">mjethanandani@gmail.com</a></div><div class=3D""><br =
class=3D""></div></div><br class=3D"Apple-interchange-newline"></div><br =
class=3D"Apple-interchange-newline"><br =
class=3D"Apple-interchange-newline">
</div>
<br class=3D""></div></body></html>=

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From: Gregory Mirsky <gregory.mirsky@ericsson.com>
To: Tom Taylor <tom.taylor.stds@gmail.com>, Mahesh Jethanandani <mjethanandani@gmail.com>, Loa Andersson <loa@pi.nu>
Thread-Topic: [Rtg-yang-coord] yang models intended for the mpls wg
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Cc: "rtg-yang-coord@ietf.org" <Rtg-yang-coord@ietf.org>, YANG Doctors <yang-doctors@ietf.org>
Subject: Re: [Rtg-yang-coord] yang models intended for the mpls wg
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Hi Tom,
what is relationship between MPLS LSP Ping and "generic ping" models? Or, b=
etween BFD and "generic continuity check"?

	Regards,
		Greg

-----Original Message-----
From: Rtg-yang-coord [mailto:rtg-yang-coord-bounces@ietf.org] On Behalf Of =
Tom Taylor
Sent: Saturday, July 25, 2015 5:19 AM
To: Mahesh Jethanandani; Loa Andersson
Cc: rtg-yang-coord@ietf.org; YANG Doctors
Subject: Re: [Rtg-yang-coord] yang models intended for the mpls wg

The generic ping module is a LIME work item.

Tom Taylor

On 24/07/2015 9:24 AM, Mahesh Jethanandani wrote:
> [with yang doctor hat on]
>
> Loa,
>
> Has there been any discussion around how these models interact with each =
other or how the mpls WG would like to see the models structured.
>
> For example, from this list of models (and I admit I have not looked at a=
 complete list of mpls related yang models or each in detail), a couple of =
questions arise.
>
> - Is there a plan for a generic mpls yang model?
> - plan for a more specific mpls-tp, mpls-te etc. yang model (they could b=
e an extension of the more generic mpls model)?
> - plan for a generic ping module (may belong in NETMOD WG)?
> - plan for a mpls ping module (again an extension of the more generic pin=
g module that interfaces with mpls module)?
> - plan for a ldp module that interfaces with the mpls module?
> - plan for a rsvp-te module that interfaces with mpls-te module?
>
> Having some structure to the models would probably help these and other y=
ang authors in their design.
>
> Thanks.
>
> Mahesh Jethanandani
> mjethanandani@gmail.com
>
>> On Jul 24, 2015, at 11:39 AM, Loa Andersson <loa@pi.nu> wrote:
>>
>> Folks,
>>
>> There are four yang models intended for the MPLS working group, we=20
>> have not yet started the process of adoption as working group documents.
>> The four documents are:
>>
>> 1. draft-zhang-mpls-tp-yang-oam (announced earlier) 2.=20
>> draft-zheng-mpls-lsp-ping-yang-cfg (announced now) 3.=20
>> draft-openconfig-mpls-consolidated-model (announced now) 4.=20
>> draft-raza-mpls-ldp-mldp-yang (announced now)
>>
>> /Loa
>>
>>
>>
>>
>> --
>>
>>
>> Loa Andersson                        email: loa@mail01.huawei.com
>> Senior MPLS Expert                          loa@pi.nu
>> Huawei Technologies (consultant)     phone: +46 739 81 21 64
>>
>> _______________________________________________
>> Rtg-yang-coord mailing list
>> Rtg-yang-coord@ietf.org
>> https://www.ietf.org/mailman/listinfo/rtg-yang-coord
>
> _______________________________________________
> Rtg-yang-coord mailing list
> Rtg-yang-coord@ietf.org
> https://www.ietf.org/mailman/listinfo/rtg-yang-coord
>

_______________________________________________
Rtg-yang-coord mailing list
Rtg-yang-coord@ietf.org
https://www.ietf.org/mailman/listinfo/rtg-yang-coord


From nobody Mon Jul 27 03:40:03 2015
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Date: Mon, 27 Jul 2015 11:38:57 +0100
From: Rob Shakir <rjs@rob.sh>
To: "Acee Lindem (acee)" <acee@cisco.com>, Juergen Schoenwaelder <j.schoenwaelder@jacobs-university.de>
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Cc: Mahesh Jethanandani <mjethanandani@gmail.com>, YANG Doctors <yang-doctors@ietf.org>, "=?utf-8?Q?rtg-yang-coord=40ietf.org?=" <rtg-yang-coord@ietf.org>, Lou Berger <lberger@labn.net>, Loa Andersson <loa@pi.nu>
Subject: Re: [Rtg-yang-coord] Routing YANG Design Team Scope
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My assumption, and understanding of the ask that the ADs put to the DT, i=
s that the routing design team should consider usability of YANG models f=
rom a routing perspective, and not constrain itself on essentially arbitr=
ary IET=46-boundaries.

If the output of the DT means that we need cross-area review to further i=
ts work as any form of standard, or document that the IET=46 would choose=
 to commit to R=46C - then engagement with the relevant area should be so=
ught, of course.

I am very much opposed to considering that point parts of a solution shou=
ld be set as constraints on anything that can be done relating to network=
 management going forward.

I have a feeling that this opinion may not be aligned with that of the ne=
tmod working group - it needs to be openly discussed as to what the best =
technical solution is, rather than calling foul on =E2=80=98scope=E2=80=99=
 related discussions.

Thanks for your consideration,
r.




On 26 July 2015 at 20:50:41, Acee Lindem (acee) (acee=40cisco.com) wrote:=


Juergen, =20

Since this E-mail thread is about the hierarchy and granularity of MPLS =20
models, I=E2=80=99m somewhat confused by your response. Nevertheless, I=E2=
=80=99ve updated =20
the subject line to correspond to your concern. =20

Our assumption is that the Routing YANG design team will attempt to use =20
the existing models but will not be constrained by them. However, I agree=
 =20
that any changes or augmentations to the existing NETMOD R=46Cs would nee=
d =20
to be reviewed in the NETMOD WG. =20

Thanks, =20
Acee =20

On 7/26/15, 3:24 PM, =22Juergen Schoenwaelder=22 =20
<j.schoenwaelder=40jacobs-university.de> wrote: =20

>Dear Acee, =20
> =20
>please note that the interfaces model plus the IP model plus the core =20
>system model plus the SNMP configuration model the IET=46 agreed on are =
=20
>defined in R=46C 7223, R=46C 7277, R=46C 7317, and R=46C 7407. All these=
 R=46Cs =20
>were produced by the NETMOD working group. Work is starting in other =20
>SDOs to extend these models. Hence, I think any attempts to replace =20
>them with something different should not only be discussed on the =20
>NETMOD list but also seek support from the NETMOD working group. =20
> =20
>Note that https://www.ietf.org/mailman/listinfo/rtg-yang-coord says: =20
> =20
> The rtg-yang-coord mailing list will provide a forum for =20
> coordination of the development of YANG models being worked on for =20
> Routing, in order to provide a consistent view to the NMS. =20
> =20
>It seems some of the content of draft-rtgyangdt-rtgwg-device-model-00 =20
>seems to leave the routing scope. =20
> =20
>/js =20
> =20
>On Sun, Jul 26, 2015 at 06:48:10PM +0000, Acee Lindem (acee) wrote: =20
>> Hi Mahesh, =20
>> =20
>> Please comment on =20
>>https://datatracker.ietf.org/doc/draft-rtgyangdt-rtgwg-device-model/ as=
 =20
>>this is the latest view of the design team. =20
>> =20
>> Thanks, =20
>> Acee =20
>> =20
>> =46rom: Rtg-yang-coord =20
>><rtg-yang-coord-bounces=40ietf.org<mailto:rtg-yang-coord-bounces=40ietf=
.org>> =20
>> on behalf of Mahesh Jethanandani =20
>><mjethanandani=40gmail.com<mailto:mjethanandani=40gmail.com>> =20
>> Date: Sunday, July 26, 2015 at 4:31 PM =20
>> To: Lou Berger <lberger=40labn.net<mailto:lberger=40labn.net>> =20
>> Cc: Routing YANG =20
>><rtg-yang-coord=40ietf.org<mailto:rtg-yang-coord=40ietf.org>>, YANG Doc=
tors =20
>><yang-doctors=40ietf.org<mailto:yang-doctors=40ietf.org>>, Loa Andersso=
n =20
>><loa=40pi.nu<mailto:loa=40pi.nu>> =20
>> Subject: Re: =5BRtg-yang-coord=5D yang models intended for the mpls wg=
 =20
>> =20
>> Lou, =20
>> =20
>> I like the approach taken in the draft =20
>>draft-openconfig-mpls-consolidated-model. In particular, the approach =20
>>represented in this tree model makes sense to me. =20
>> =20
>> =20
>> +--rw mpls=21 =20
>> +--rw global =20
>> =7C ... =20
>> +--rw te-global-attributes =20
>> =7C ... =20
>> +--rw signaling-protocols =20
>> =7C ... =20
>> +--rw lsps =20
>> ... =20
>> =20
>> =20
>> However, by its own admission, the draft says: =20
>> =20
>> =20
>> This model does not aim to be feature complete (i.e., cover all =20
>> possible aspects or features of MPLS). =20
>> =20
>> My suggestion would be for the MPLS WG to take up the model structure =
=20
>>as represented above and to do a more complete work of including all =20
>>features of MPLS, e.g. GMPLS. =20
>> =20
>> Thanks. =20
>> =20
>> Mahesh Jethanandani =20
>> mjethanandani=40gmail.com<mailto:mjethanandani=40gmail.com> =20
>> =20
>> =20
>> =20
>> =20
>> =20
> =20
>> =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F =20
>> Rtg-yang-coord mailing list =20
>> Rtg-yang-coord=40ietf.org =20
>> https://www.ietf.org/mailman/listinfo/rtg-yang-coord =20
> =20
> =20
>-- =20
>Juergen Schoenwaelder Jacobs University Bremen gGmbH =20
>Phone: +49 421 200 3587 Campus Ring 1 =7C 28759 Bremen =7C Germany =20
>=46ax: +49 421 200 3103 <http://www.jacobs-university.de/> =20

=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F
Rtg-yang-coord mailing list
Rtg-yang-coord=40ietf.org
https://www.ietf.org/mailman/listinfo/rtg-yang-coord

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.error =7B color:=23AA0000; =7D</style></head><body style=3D=22word-wrap:=
 break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-sp=
ace;=22><div class=3D=22bloop=5Fmarkdown=22><p>My assumption, and underst=
anding of the ask that the ADs put to the DT, is that the routing design =
team should consider <em>usability</em> of YANG models from a routing per=
spective, and not constrain itself on essentially arbitrary IET=46-bounda=
ries.</p>

<p>If the output of the DT means that we need cross-area review to furthe=
r its work as any form of standard, or document that the IET=46 would cho=
ose to commit to R=46C - then engagement with the relevant area should be=
 sought, of course.</p>

<p>I am <em>very</em> much opposed to considering that point parts of a s=
olution should be set as constraints on anything that can be done relatin=
g to network management going forward.</p>

<p>I have a feeling that this opinion may not be aligned with that of the=
 netmod working group - it needs to be openly discussed as to what the be=
st technical solution is, rather than calling foul on =E2=80=98scope=E2=80=
=99 related discussions.</p>

<p>Thanks for your consideration,<br>
r.</p>

<p></p></div><div class=3D=22bloop=5Foriginal=5Fhtml=22><style>body=7Bfon=
t-family:Consolas,Arial;font-size:13px=7D</style><div id=3D=22bloop=5Fcus=
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gba(0,0,0,1.0); margin: 0px; line-height: auto;=22><br></div> <br> <div i=
d=3D=22bloop=5Fsign=5F1437993258851214848=22 class=3D=22bloop=5Fsign=22><=
/div> <br><p class=3D=22airmail=5Fon=22 style=3D=22color:=23000;=22>On 26=
 July 2015 at 20:50:41, Acee Lindem (acee) (<a href=3D=22mailto:acee=40ci=
sco.com=22>acee=40cisco.com</a>) wrote:</p> <blockquote type=3D=22cite=22=
 class=3D=22clean=5Fbq=22><span><div><div></div><div>Juergen, =20
<br>
<br>Since this E-mail thread is about the hierarchy and granularity of MP=
LS
<br>models, I=E2=80=99m somewhat confused by your response. Nevertheless,=
 I=E2=80=99ve updated
<br>the subject line to correspond to your concern.
<br>
<br>Our assumption is that the Routing YANG design team will attempt to u=
se
<br>the existing models but will not be constrained by them. However, I a=
gree
<br>that any changes or augmentations to the existing NETMOD R=46Cs would=
 need
<br>to be reviewed in the NETMOD WG.
<br>
<br>Thanks,
<br>Acee =20
<br>
<br>On 7/26/15, 3:24 PM, =22Juergen Schoenwaelder=22
<br>&lt;j.schoenwaelder=40jacobs-university.de&gt; wrote:
<br>
<br>&gt;Dear Acee,
<br>&gt;
<br>&gt;please note that the interfaces model plus the IP model plus the =
core
<br>&gt;system model plus the SNMP configuration model the IET=46 agreed =
on are
<br>&gt;defined in R=46C 7223, R=46C 7277, R=46C 7317, and R=46C 7407. Al=
l these R=46Cs
<br>&gt;were produced by the NETMOD working group.  Work is starting in o=
ther
<br>&gt;SDOs to extend these models. Hence, I think any attempts to repla=
ce
<br>&gt;them with something different should not only be discussed on the=

<br>&gt;NETMOD list but also seek support from the NETMOD working group.
<br>&gt;
<br>&gt;Note that https://www.ietf.org/mailman/listinfo/rtg-yang-coord sa=
ys:
<br>&gt;
<br>&gt;    The rtg-yang-coord mailing list will provide a forum for
<br>&gt;    coordination of the development of YANG models being worked o=
n for
<br>&gt;    Routing, in order to provide a consistent view to the NMS.
<br>&gt;
<br>&gt;It seems some of the content of draft-rtgyangdt-rtgwg-device-mode=
l-00
<br>&gt;seems to leave the routing scope.
<br>&gt;
<br>&gt;/js
<br>&gt;
<br>&gt;On Sun, Jul 26, 2015 at 06:48:10PM +0000, Acee Lindem (acee) wrot=
e:
<br>&gt;&gt; Hi Mahesh,
<br>&gt;&gt; =20
<br>&gt;&gt; Please comment on
<br>&gt;&gt;https://datatracker.ietf.org/doc/draft-rtgyangdt-rtgwg-device=
-model/ as
<br>&gt;&gt;this is the latest view of the design team.
<br>&gt;&gt; =20
<br>&gt;&gt; Thanks,
<br>&gt;&gt; Acee
<br>&gt;&gt; =20
<br>&gt;&gt; =46rom: Rtg-yang-coord
<br>&gt;&gt;&lt;rtg-yang-coord-bounces=40ietf.org&lt;mailto:rtg-yang-coor=
d-bounces=40ietf.org&gt;&gt;
<br>&gt;&gt; on behalf of Mahesh Jethanandani
<br>&gt;&gt;&lt;mjethanandani=40gmail.com&lt;mailto:mjethanandani=40gmail=
.com&gt;&gt;
<br>&gt;&gt; Date: Sunday, July 26, 2015 at 4:31 PM
<br>&gt;&gt; To: Lou Berger &lt;lberger=40labn.net&lt;mailto:lberger=40la=
bn.net&gt;&gt;
<br>&gt;&gt; Cc: Routing YANG
<br>&gt;&gt;&lt;rtg-yang-coord=40ietf.org&lt;mailto:rtg-yang-coord=40ietf=
.org&gt;&gt;, YANG Doctors
<br>&gt;&gt;&lt;yang-doctors=40ietf.org&lt;mailto:yang-doctors=40ietf.org=
&gt;&gt;, Loa Andersson
<br>&gt;&gt;&lt;loa=40pi.nu&lt;mailto:loa=40pi.nu&gt;&gt;
<br>&gt;&gt; Subject: Re: =5BRtg-yang-coord=5D yang models intended for t=
he mpls wg
<br>&gt;&gt; =20
<br>&gt;&gt; Lou,
<br>&gt;&gt; =20
<br>&gt;&gt; I like the approach taken in the draft
<br>&gt;&gt;draft-openconfig-mpls-consolidated-model. In particular, the =
approach
<br>&gt;&gt;represented in this tree model makes sense to me.
<br>&gt;&gt; =20
<br>&gt;&gt; =20
<br>&gt;&gt;    +--rw mpls=21
<br>&gt;&gt;          +--rw global
<br>&gt;&gt;          =7C     ...
<br>&gt;&gt;          +--rw te-global-attributes
<br>&gt;&gt;          =7C     ...
<br>&gt;&gt;          +--rw signaling-protocols
<br>&gt;&gt;          =7C     ...
<br>&gt;&gt;          +--rw lsps
<br>&gt;&gt;                ...
<br>&gt;&gt; =20
<br>&gt;&gt; =20
<br>&gt;&gt; However, by its own admission, the draft says:
<br>&gt;&gt; =20
<br>&gt;&gt; =20
<br>&gt;&gt; This model does not aim to be feature complete (i.e., cover =
all
<br>&gt;&gt;    possible aspects or features of MPLS).
<br>&gt;&gt; =20
<br>&gt;&gt; My suggestion would be for the MPLS WG to take up the model =
structure
<br>&gt;&gt;as represented above and to do a more complete work of includ=
ing all
<br>&gt;&gt;features of MPLS, e.g. GMPLS.
<br>&gt;&gt; =20
<br>&gt;&gt; Thanks.
<br>&gt;&gt; =20
<br>&gt;&gt; Mahesh Jethanandani
<br>&gt;&gt; mjethanandani=40gmail.com&lt;mailto:mjethanandani=40gmail.co=
m&gt;
<br>&gt;&gt; =20
<br>&gt;&gt; =20
<br>&gt;&gt; =20
<br>&gt;&gt; =20
<br>&gt;&gt; =20
<br>&gt;
<br>&gt;&gt; =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F
<br>&gt;&gt; Rtg-yang-coord mailing list
<br>&gt;&gt; Rtg-yang-coord=40ietf.org
<br>&gt;&gt; https://www.ietf.org/mailman/listinfo/rtg-yang-coord
<br>&gt;
<br>&gt;
<br>&gt;-- =20
<br>&gt;Juergen Schoenwaelder           Jacobs University Bremen gGmbH
<br>&gt;Phone: +49 421 200 3587         Campus Ring 1 =7C 28759 Bremen =7C=
 Germany
<br>&gt;=46ax:   +49 421 200 3103         &lt;http://www.jacobs-universit=
y.de/&gt;
<br>
<br>=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F<=
br>Rtg-yang-coord mailing list<br>Rtg-yang-coord=40ietf.org<br>https://ww=
w.ietf.org/mailman/listinfo/rtg-yang-coord<br></div></div></span></blockq=
uote></div><div class=3D=22bloop=5Fmarkdown=22><p></p></div></body></html=
>
--55b60a41_6b0a26b0_755b--


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Cc: "rtg-yang-coord@ietf.org" <rtg-yang-coord@ietf.org>, Juergen Schoenwaelder <j.schoenwaelder@jacobs-university.de>, Mahesh Jethanandani <mjethanandani@gmail.com>, YANG Doctors <yang-doctors@ietf.org>, Berger Lou <lberger@labn.net>, "Acee Lindem \(acee\)" <acee@cisco.com>, Loa Andersson <loa@pi.nu>
Subject: Re: [Rtg-yang-coord] Routing YANG Design Team Scope
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	Speaking as NETMOD co-chair:

	This is precisely why we are doing this effort and the others in =
the way that we are - across areas, with a wide enough group of people =
involved to hopefully cover the real requirements not just say server =
implementations, or client implementations - we want to cover those and =
operators who would using them.  So if one of the outputs of a DT is to =
conclude that the existing standard models are insufficient, then we =
will work to revise them.  The DTs should strive to recycle what is =
there as much as possible, but if in the end it is insufficient there is =
no other option.  So in summary: The DT should not believe that it is =
constrained to using only existing models as-is,

	=E2=80=94Tom



> On Jul 27, 2015:3:38 AM, at 3:38 AM, Rob Shakir <rjs@rob.sh> wrote:
>=20
> My assumption, and understanding of the ask that the ADs put to the =
DT, is that the routing design team should consider usability of YANG =
models from a routing perspective, and not constrain itself on =
essentially arbitrary IETF-boundaries.
>=20
> If the output of the DT means that we need cross-area review to =
further its work as any form of standard, or document that the IETF =
would choose to commit to RFC - then engagement with the relevant area =
should be sought, of course.
>=20
> I am very much opposed to considering that point parts of a solution =
should be set as constraints on anything that can be done relating to =
network management going forward.
>=20
> I have a feeling that this opinion may not be aligned with that of the =
netmod working group - it needs to be openly discussed as to what the =
best technical solution is, rather than calling foul on =E2=80=98scope=E2=80=
=99 related discussions.
>=20
> Thanks for your consideration,
> r.
>=20
>=20
>=20
>=20
>=20
> On 26 July 2015 at 20:50:41, Acee Lindem (acee) (acee@cisco.com =
<mailto:acee@cisco.com>) wrote:
>=20
>> Juergen, =20
>>=20
>> Since this E-mail thread is about the hierarchy and granularity of =
MPLS=20
>> models, I=E2=80=99m somewhat confused by your response. Nevertheless, =
I=E2=80=99ve updated=20
>> the subject line to correspond to your concern.=20
>>=20
>> Our assumption is that the Routing YANG design team will attempt to =
use=20
>> the existing models but will not be constrained by them. However, I =
agree=20
>> that any changes or augmentations to the existing NETMOD RFCs would =
need=20
>> to be reviewed in the NETMOD WG.=20
>>=20
>> Thanks,=20
>> Acee =20
>>=20
>> On 7/26/15, 3:24 PM, "Juergen Schoenwaelder"=20
>> <j.schoenwaelder@jacobs-university.de =
<mailto:j.schoenwaelder@jacobs-university.de>> wrote:=20
>>=20
>> >Dear Acee,=20
>> >=20
>> >please note that the interfaces model plus the IP model plus the =
core=20
>> >system model plus the SNMP configuration model the IETF agreed on =
are=20
>> >defined in RFC 7223, RFC 7277, RFC 7317, and RFC 7407. All these =
RFCs=20
>> >were produced by the NETMOD working group. Work is starting in other=20=

>> >SDOs to extend these models. Hence, I think any attempts to replace=20=

>> >them with something different should not only be discussed on the=20
>> >NETMOD list but also seek support from the NETMOD working group.=20
>> >=20
>> >Note that https://www.ietf.org/mailman/listinfo/rtg-yang-coord =
<https://www.ietf.org/mailman/listinfo/rtg-yang-coord> says:=20
>> >=20
>> > The rtg-yang-coord mailing list will provide a forum for=20
>> > coordination of the development of YANG models being worked on for=20=

>> > Routing, in order to provide a consistent view to the NMS.=20
>> >=20
>> >It seems some of the content of =
draft-rtgyangdt-rtgwg-device-model-00=20
>> >seems to leave the routing scope.=20
>> >=20
>> >/js=20
>> >=20
>> >On Sun, Jul 26, 2015 at 06:48:10PM +0000, Acee Lindem (acee) wrote:=20=

>> >> Hi Mahesh,=20
>> >> =20
>> >> Please comment on=20
>> =
>>https://datatracker.ietf.org/doc/draft-rtgyangdt-rtgwg-device-model/ =
<https://datatracker.ietf.org/doc/draft-rtgyangdt-rtgwg-device-model/> =
as=20
>> >>this is the latest view of the design team.=20
>> >> =20
>> >> Thanks,=20
>> >> Acee=20
>> >> =20
>> >> From: Rtg-yang-coord=20
>> >><rtg-yang-coord-bounces@ietf.org =
<mailto:rtg-yang-coord-bounces@ietf.org><mailto:rtg-yang-coord-bounces@iet=
f.org <mailto:rtg-yang-coord-bounces@ietf.org>>>=20
>> >> on behalf of Mahesh Jethanandani=20
>> >><mjethanandani@gmail.com =
<mailto:mjethanandani@gmail.com><mailto:mjethanandani@gmail.com =
<mailto:mjethanandani@gmail.com>>>=20
>> >> Date: Sunday, July 26, 2015 at 4:31 PM=20
>> >> To: Lou Berger <lberger@labn.net =
<mailto:lberger@labn.net><mailto:lberger@labn.net =
<mailto:lberger@labn.net>>>=20
>> >> Cc: Routing YANG=20
>> >><rtg-yang-coord@ietf.org =
<mailto:rtg-yang-coord@ietf.org><mailto:rtg-yang-coord@ietf.org =
<mailto:rtg-yang-coord@ietf.org>>>, YANG Doctors=20
>> >><yang-doctors@ietf.org =
<mailto:yang-doctors@ietf.org><mailto:yang-doctors@ietf.org =
<mailto:yang-doctors@ietf.org>>>, Loa Andersson=20
>> >><loa@pi.nu <mailto:loa@pi.nu><mailto:loa@pi.nu <mailto:loa@pi.nu>>>=20=

>> >> Subject: Re: [Rtg-yang-coord] yang models intended for the mpls wg=20=

>> >> =20
>> >> Lou,=20
>> >> =20
>> >> I like the approach taken in the draft=20
>> >>draft-openconfig-mpls-consolidated-model. In particular, the =
approach=20
>> >>represented in this tree model makes sense to me.=20
>> >> =20
>> >> =20
>> >> +--rw mpls!=20
>> >> +--rw global=20
>> >> | ...=20
>> >> +--rw te-global-attributes=20
>> >> | ...=20
>> >> +--rw signaling-protocols=20
>> >> | ...=20
>> >> +--rw lsps=20
>> >> ...=20
>> >> =20
>> >> =20
>> >> However, by its own admission, the draft says:=20
>> >> =20
>> >> =20
>> >> This model does not aim to be feature complete (i.e., cover all=20
>> >> possible aspects or features of MPLS).=20
>> >> =20
>> >> My suggestion would be for the MPLS WG to take up the model =
structure=20
>> >>as represented above and to do a more complete work of including =
all=20
>> >>features of MPLS, e.g. GMPLS.=20
>> >> =20
>> >> Thanks.=20
>> >> =20
>> >> Mahesh Jethanandani=20
>> >> mjethanandani@gmail.com =
<mailto:mjethanandani@gmail.com><mailto:mjethanandani@gmail.com =
<mailto:mjethanandani@gmail.com>>=20
>> >> =20
>> >> =20
>> >> =20
>> >> =20
>> >> =20
>> >=20
>> >> _______________________________________________=20
>> >> Rtg-yang-coord mailing list=20
>> >> Rtg-yang-coord@ietf.org <mailto:Rtg-yang-coord@ietf.org>=20
>> >> https://www.ietf.org/mailman/listinfo/rtg-yang-coord =
<https://www.ietf.org/mailman/listinfo/rtg-yang-coord>=20
>> >=20
>> >=20
>> >-- =20
>> >Juergen Schoenwaelder Jacobs University Bremen gGmbH=20
>> >Phone: +49 421 200 3587 Campus Ring 1 | 28759 Bremen | Germany=20
>> >Fax: +49 421 200 3103 <http://www.jacobs-university.de/ =
<http://www.jacobs-university.de/>>=20
>>=20
>> _______________________________________________
>> Rtg-yang-coord mailing list
>> Rtg-yang-coord@ietf.org <mailto:Rtg-yang-coord@ietf.org>
>> https://www.ietf.org/mailman/listinfo/rtg-yang-coord =
<https://www.ietf.org/mailman/listinfo/rtg-yang-coord>
>=20
>=20
> _______________________________________________
> Rtg-yang-coord mailing list
> Rtg-yang-coord@ietf.org <mailto:Rtg-yang-coord@ietf.org>
> https://www.ietf.org/mailman/listinfo/rtg-yang-coord =
<https://www.ietf.org/mailman/listinfo/rtg-yang-coord>


--Apple-Mail=_D3DCABC1-88FB-4EFE-A13B-FED679827964
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	charset=utf-8

<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html =
charset=3Dutf-8"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" =
class=3D""><div class=3D""><br class=3D""></div><div class=3D""><span =
class=3D"Apple-tab-span" style=3D"white-space:pre">	</span>Speaking =
as NETMOD co-chair:</div><div class=3D""><br class=3D""></div><span =
class=3D"Apple-tab-span" style=3D"white-space:pre">	</span>This is =
precisely why we are doing this effort and the others in the way that we =
are - across areas, with a wide enough group of people involved to =
hopefully cover the real requirements not just say server =
implementations, or client implementations - we want to cover those and =
operators who would using them. &nbsp;So if one of the outputs of a DT =
is to conclude that the existing standard models are insufficient, then =
we will work to revise them. &nbsp;The DTs should strive to recycle what =
is there as much as possible, but if in the end it is insufficient there =
is no other option. &nbsp;So in summary:&nbsp;The DT should not believe =
that it is constrained to using only existing models as-is,<div =
class=3D""><div class=3D""><br class=3D""></div><div class=3D""><span =
class=3D"Apple-tab-span" style=3D"white-space:pre">	=
</span>=E2=80=94Tom</div><div class=3D""><br class=3D""></div><div =
class=3D""><br class=3D""></div><div class=3D""><br =
class=3D""><div><blockquote type=3D"cite" class=3D""><div class=3D"">On =
Jul 27, 2015:3:38 AM, at 3:38 AM, Rob Shakir &lt;<a =
href=3D"mailto:rjs@rob.sh" class=3D"">rjs@rob.sh</a>&gt; wrote:</div><br =
class=3D"Apple-interchange-newline"><div class=3D""><div =
class=3D"bloop_markdown" style=3D"font-family: Consolas, Arial; =
font-size: 13px; font-style: normal; font-variant: normal; font-weight: =
normal; letter-spacing: normal; line-height: normal; orphans: auto; =
text-align: start; text-indent: 0px; text-transform: none; white-space: =
normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; =
background-color: rgb(254, 254, 254);"><p style=3D"margin: 15px 0px; =
-webkit-margin-before: 0px;" class=3D"">My assumption, and understanding =
of the ask that the ADs put to the DT, is that the routing design team =
should consider<span class=3D"Apple-converted-space">&nbsp;</span><em =
style=3D"-webkit-margin-before: 0px;" class=3D"">usability</em><span =
class=3D"Apple-converted-space">&nbsp;</span>of YANG models from a =
routing perspective, and not constrain itself on essentially arbitrary =
IETF-boundaries.</p><p style=3D"margin: 15px 0px;" class=3D"">If the =
output of the DT means that we need cross-area review to further its =
work as any form of standard, or document that the IETF would choose to =
commit to RFC - then engagement with the relevant area should be sought, =
of course.</p><p style=3D"margin: 15px 0px;" class=3D"">I am<span =
class=3D"Apple-converted-space">&nbsp;</span><em =
style=3D"-webkit-margin-before: 0px;" class=3D"">very</em><span =
class=3D"Apple-converted-space">&nbsp;</span>much opposed to considering =
that point parts of a solution should be set as constraints on anything =
that can be done relating to network management going forward.</p><p =
style=3D"margin: 15px 0px;" class=3D"">I have a feeling that this =
opinion may not be aligned with that of the netmod working group - it =
needs to be openly discussed as to what the best technical solution is, =
rather than calling foul on =E2=80=98scope=E2=80=99 related =
discussions.</p><p style=3D"margin: 15px 0px;" class=3D"">Thanks for =
your consideration,<br style=3D"-webkit-margin-before: 0px;" =
class=3D"">r.</p><div style=3D"margin: 15px 0px;" class=3D""><br =
class=3D"webkit-block-placeholder"></div></div><div =
class=3D"bloop_original_html" style=3D"font-family: Consolas, Arial; =
font-size: 13px; font-style: normal; font-variant: normal; font-weight: =
normal; letter-spacing: normal; line-height: normal; orphans: auto; =
text-align: start; text-indent: 0px; text-transform: none; white-space: =
normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; =
background-color: rgb(254, 254, 254);"><div id=3D"bloop_customfont" =
style=3D"font-family: Consolas, Arial; font-size: 13px; margin: 0px;" =
class=3D""><br class=3D""></div><br class=3D""><div =
id=3D"bloop_sign_1437993258851214848" class=3D"bloop_sign"></div><br =
class=3D""><p class=3D"airmail_on" style=3D"margin: 15px 0px;">On 26 =
July 2015 at 20:50:41, Acee Lindem (acee) (<a =
href=3D"mailto:acee@cisco.com" style=3D"color: rgb(65, 131, 196); =
background-color: inherit; text-decoration: none;" =
class=3D"">acee@cisco.com</a>) wrote:</p><blockquote type=3D"cite" =
class=3D"clean_bq" style=3D"margin: 15px 0px;"><span style=3D"margin-top: =
0px; margin-bottom: 0px;" class=3D""><div =
class=3D""></div>Juergen,&nbsp;&nbsp;<br class=3D""><br class=3D"">Since =
this E-mail thread is about the hierarchy and granularity of =
MPLS&nbsp;<br class=3D"">models, I=E2=80=99m somewhat confused by your =
response. Nevertheless, I=E2=80=99ve updated&nbsp;<br class=3D"">the =
subject line to correspond to your concern.&nbsp;<br class=3D""><br =
class=3D"">Our assumption is that the Routing YANG design team will =
attempt to use&nbsp;<br class=3D"">the existing models but will not be =
constrained by them. However, I agree&nbsp;<br class=3D"">that any =
changes or augmentations to the existing NETMOD RFCs would need&nbsp;<br =
class=3D"">to be reviewed in the NETMOD WG.&nbsp;<br class=3D""><br =
class=3D"">Thanks,&nbsp;<br class=3D"">Acee&nbsp;&nbsp;<br class=3D""><br =
class=3D"">On 7/26/15, 3:24 PM, "Juergen Schoenwaelder"&nbsp;<br =
class=3D"">&lt;<a href=3D"mailto:j.schoenwaelder@jacobs-university.de" =
style=3D"color: rgb(65, 131, 196); background-color: inherit; =
text-decoration: none;" =
class=3D"">j.schoenwaelder@jacobs-university.de</a>&gt; wrote:&nbsp;<br =
class=3D""><br class=3D"">&gt;Dear Acee,&nbsp;<br class=3D"">&gt;&nbsp;<br=
 class=3D"">&gt;please note that the interfaces model plus the IP model =
plus the core&nbsp;<br class=3D"">&gt;system model plus the SNMP =
configuration model the IETF agreed on are&nbsp;<br class=3D"">&gt;defined=
 in RFC 7223, RFC 7277, RFC 7317, and RFC 7407. All these RFCs&nbsp;<br =
class=3D"">&gt;were produced by the NETMOD working group. Work is =
starting in other&nbsp;<br class=3D"">&gt;SDOs to extend these models. =
Hence, I think any attempts to replace&nbsp;<br class=3D"">&gt;them with =
something different should not only be discussed on the&nbsp;<br =
class=3D"">&gt;NETMOD list but also seek support from the NETMOD working =
group.&nbsp;<br class=3D"">&gt;&nbsp;<br class=3D"">&gt;Note =
that&nbsp;<a href=3D"https://www.ietf.org/mailman/listinfo/rtg-yang-coord"=
 style=3D"color: rgb(65, 131, 196); background-color: inherit; =
text-decoration: none;" =
class=3D"">https://www.ietf.org/mailman/listinfo/rtg-yang-coord</a>&nbsp;s=
ays:&nbsp;<br class=3D"">&gt;&nbsp;<br class=3D"">&gt; The =
rtg-yang-coord mailing list will provide a forum for&nbsp;<br =
class=3D"">&gt; coordination of the development of YANG models being =
worked on for&nbsp;<br class=3D"">&gt; Routing, in order to provide a =
consistent view to the NMS.&nbsp;<br class=3D"">&gt;&nbsp;<br =
class=3D"">&gt;It seems some of the content of =
draft-rtgyangdt-rtgwg-device-model-00&nbsp;<br class=3D"">&gt;seems to =
leave the routing scope.&nbsp;<br class=3D"">&gt;&nbsp;<br =
class=3D"">&gt;/js&nbsp;<br class=3D"">&gt;&nbsp;<br class=3D"">&gt;On =
Sun, Jul 26, 2015 at 06:48:10PM +0000, Acee Lindem (acee) =
wrote:&nbsp;<br class=3D"">&gt;&gt; Hi Mahesh,&nbsp;<br =
class=3D"">&gt;&gt;&nbsp;&nbsp;<br class=3D"">&gt;&gt; Please comment =
on&nbsp;<br class=3D"">&gt;&gt;<a =
href=3D"https://datatracker.ietf.org/doc/draft-rtgyangdt-rtgwg-device-mode=
l/" style=3D"color: rgb(65, 131, 196); background-color: inherit; =
text-decoration: none;" =
class=3D"">https://datatracker.ietf.org/doc/draft-rtgyangdt-rtgwg-device-m=
odel/</a>&nbsp;as&nbsp;<br class=3D"">&gt;&gt;this is the latest view of =
the design team.&nbsp;<br class=3D"">&gt;&gt;&nbsp;&nbsp;<br =
class=3D"">&gt;&gt; Thanks,&nbsp;<br class=3D"">&gt;&gt; Acee&nbsp;<br =
class=3D"">&gt;&gt;&nbsp;&nbsp;<br class=3D"">&gt;&gt; From: =
Rtg-yang-coord&nbsp;<br class=3D"">&gt;&gt;&lt;<a =
href=3D"mailto:rtg-yang-coord-bounces@ietf.org" style=3D"color: rgb(65, =
131, 196); background-color: inherit; text-decoration: none;" =
class=3D"">rtg-yang-coord-bounces@ietf.org</a>&lt;<a =
href=3D"mailto:rtg-yang-coord-bounces@ietf.org" style=3D"color: rgb(65, =
131, 196); background-color: inherit; text-decoration: none;" =
class=3D"">mailto:rtg-yang-coord-bounces@ietf.org</a>&gt;&gt;&nbsp;<br =
class=3D"">&gt;&gt; on behalf of Mahesh Jethanandani&nbsp;<br =
class=3D"">&gt;&gt;&lt;<a href=3D"mailto:mjethanandani@gmail.com" =
style=3D"color: rgb(65, 131, 196); background-color: inherit; =
text-decoration: none;" class=3D"">mjethanandani@gmail.com</a>&lt;<a =
href=3D"mailto:mjethanandani@gmail.com" style=3D"color: rgb(65, 131, =
196); background-color: inherit; text-decoration: none;" =
class=3D"">mailto:mjethanandani@gmail.com</a>&gt;&gt;&nbsp;<br =
class=3D"">&gt;&gt; Date: Sunday, July 26, 2015 at 4:31 PM&nbsp;<br =
class=3D"">&gt;&gt; To: Lou Berger &lt;<a href=3D"mailto:lberger@labn.net"=
 style=3D"color: rgb(65, 131, 196); background-color: inherit; =
text-decoration: none;" class=3D"">lberger@labn.net</a>&lt;<a =
href=3D"mailto:lberger@labn.net" style=3D"color: rgb(65, 131, 196); =
background-color: inherit; text-decoration: none;" =
class=3D"">mailto:lberger@labn.net</a>&gt;&gt;&nbsp;<br =
class=3D"">&gt;&gt; Cc: Routing YANG&nbsp;<br class=3D"">&gt;&gt;&lt;<a =
href=3D"mailto:rtg-yang-coord@ietf.org" style=3D"color: rgb(65, 131, =
196); background-color: inherit; text-decoration: none;" =
class=3D"">rtg-yang-coord@ietf.org</a>&lt;<a =
href=3D"mailto:rtg-yang-coord@ietf.org" style=3D"color: rgb(65, 131, =
196); background-color: inherit; text-decoration: none;" =
class=3D"">mailto:rtg-yang-coord@ietf.org</a>&gt;&gt;, YANG =
Doctors&nbsp;<br class=3D"">&gt;&gt;&lt;<a =
href=3D"mailto:yang-doctors@ietf.org" style=3D"color: rgb(65, 131, 196); =
background-color: inherit; text-decoration: none;" =
class=3D"">yang-doctors@ietf.org</a>&lt;<a =
href=3D"mailto:yang-doctors@ietf.org" style=3D"color: rgb(65, 131, 196); =
background-color: inherit; text-decoration: none;" =
class=3D"">mailto:yang-doctors@ietf.org</a>&gt;&gt;, Loa =
Andersson&nbsp;<br class=3D"">&gt;&gt;&lt;<a href=3D"mailto:loa@pi.nu" =
style=3D"color: rgb(65, 131, 196); background-color: inherit; =
text-decoration: none;" class=3D"">loa@pi.nu</a>&lt;<a =
href=3D"mailto:loa@pi.nu" style=3D"color: rgb(65, 131, 196); =
background-color: inherit; text-decoration: none;" =
class=3D"">mailto:loa@pi.nu</a>&gt;&gt;&nbsp;<br class=3D"">&gt;&gt; =
Subject: Re: [Rtg-yang-coord] yang models intended for the mpls =
wg&nbsp;<br class=3D"">&gt;&gt;&nbsp;&nbsp;<br class=3D"">&gt;&gt; =
Lou,&nbsp;<br class=3D"">&gt;&gt;&nbsp;&nbsp;<br class=3D"">&gt;&gt; I =
like the approach taken in the draft&nbsp;<br =
class=3D"">&gt;&gt;draft-openconfig-mpls-consolidated-model. In =
particular, the approach&nbsp;<br class=3D"">&gt;&gt;represented in this =
tree model makes sense to me.&nbsp;<br class=3D"">&gt;&gt;&nbsp;&nbsp;<br =
class=3D"">&gt;&gt;&nbsp;&nbsp;<br class=3D"">&gt;&gt; +--rw =
mpls!&nbsp;<br class=3D"">&gt;&gt; +--rw global&nbsp;<br =
class=3D"">&gt;&gt; | ...&nbsp;<br class=3D"">&gt;&gt; +--rw =
te-global-attributes&nbsp;<br class=3D"">&gt;&gt; | ...&nbsp;<br =
class=3D"">&gt;&gt; +--rw signaling-protocols&nbsp;<br class=3D"">&gt;&gt;=
 | ...&nbsp;<br class=3D"">&gt;&gt; +--rw lsps&nbsp;<br =
class=3D"">&gt;&gt; ...&nbsp;<br class=3D"">&gt;&gt;&nbsp;&nbsp;<br =
class=3D"">&gt;&gt;&nbsp;&nbsp;<br class=3D"">&gt;&gt; However, by its =
own admission, the draft says:&nbsp;<br class=3D"">&gt;&gt;&nbsp;&nbsp;<br=
 class=3D"">&gt;&gt;&nbsp;&nbsp;<br class=3D"">&gt;&gt; This model does =
not aim to be feature complete (i.e., cover all&nbsp;<br =
class=3D"">&gt;&gt; possible aspects or features of MPLS).&nbsp;<br =
class=3D"">&gt;&gt;&nbsp;&nbsp;<br class=3D"">&gt;&gt; My suggestion =
would be for the MPLS WG to take up the model structure&nbsp;<br =
class=3D"">&gt;&gt;as represented above and to do a more complete work =
of including all&nbsp;<br class=3D"">&gt;&gt;features of MPLS, e.g. =
GMPLS.&nbsp;<br class=3D"">&gt;&gt;&nbsp;&nbsp;<br class=3D"">&gt;&gt; =
Thanks.&nbsp;<br class=3D"">&gt;&gt;&nbsp;&nbsp;<br class=3D"">&gt;&gt; =
Mahesh Jethanandani&nbsp;<br class=3D"">&gt;&gt;&nbsp;<a =
href=3D"mailto:mjethanandani@gmail.com" style=3D"color: rgb(65, 131, =
196); background-color: inherit; text-decoration: none;" =
class=3D"">mjethanandani@gmail.com</a>&lt;<a =
href=3D"mailto:mjethanandani@gmail.com" style=3D"color: rgb(65, 131, =
196); background-color: inherit; text-decoration: none;" =
class=3D"">mailto:mjethanandani@gmail.com</a>&gt;&nbsp;<br =
class=3D"">&gt;&gt;&nbsp;&nbsp;<br class=3D"">&gt;&gt;&nbsp;&nbsp;<br =
class=3D"">&gt;&gt;&nbsp;&nbsp;<br class=3D"">&gt;&gt;&nbsp;&nbsp;<br =
class=3D"">&gt;&gt;&nbsp;&nbsp;<br class=3D"">&gt;&nbsp;<br =
class=3D"">&gt;&gt; =
_______________________________________________&nbsp;<br =
class=3D"">&gt;&gt; Rtg-yang-coord mailing list&nbsp;<br =
class=3D"">&gt;&gt;&nbsp;<a href=3D"mailto:Rtg-yang-coord@ietf.org" =
style=3D"color: rgb(65, 131, 196); background-color: inherit; =
text-decoration: none;" class=3D"">Rtg-yang-coord@ietf.org</a>&nbsp;<br =
class=3D"">&gt;&gt;&nbsp;<a =
href=3D"https://www.ietf.org/mailman/listinfo/rtg-yang-coord" =
style=3D"color: rgb(65, 131, 196); background-color: inherit; =
text-decoration: none;" =
class=3D"">https://www.ietf.org/mailman/listinfo/rtg-yang-coord</a>&nbsp;<=
br class=3D"">&gt;&nbsp;<br class=3D"">&gt;&nbsp;<br =
class=3D"">&gt;--&nbsp;&nbsp;<br class=3D"">&gt;Juergen Schoenwaelder =
Jacobs University Bremen gGmbH&nbsp;<br class=3D"">&gt;Phone: +49 421 =
200 3587 Campus Ring 1 | 28759 Bremen | Germany&nbsp;<br =
class=3D"">&gt;Fax: +49 421 200 3103 &lt;<a =
href=3D"http://www.jacobs-university.de/" style=3D"color: rgb(65, 131, =
196); background-color: inherit; text-decoration: none;" =
class=3D"">http://www.jacobs-university.de/</a>&gt;&nbsp;<br =
class=3D""><br =
class=3D"">_______________________________________________<br =
class=3D"">Rtg-yang-coord mailing list<br class=3D""><a =
href=3D"mailto:Rtg-yang-coord@ietf.org" style=3D"color: rgb(65, 131, =
196); background-color: inherit; text-decoration: none;" =
class=3D"">Rtg-yang-coord@ietf.org</a><br class=3D""><a =
href=3D"https://www.ietf.org/mailman/listinfo/rtg-yang-coord" =
style=3D"color: rgb(65, 131, 196); background-color: inherit; =
text-decoration: none;" =
class=3D"">https://www.ietf.org/mailman/listinfo/rtg-yang-coord</a><br =
class=3D""></span></blockquote></div><div class=3D"bloop_markdown" =
style=3D"font-family: Consolas, Arial; font-size: 13px; font-style: =
normal; font-variant: normal; font-weight: normal; letter-spacing: =
normal; line-height: normal; orphans: auto; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; widows: =
auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; =
background-color: rgb(254, 254, 254);"><div style=3D"margin: 15px 0px; =
-webkit-margin-before: 0px;" class=3D""><br =
class=3D"webkit-block-placeholder"></div></div><span style=3D"font-family:=
 Consolas, Arial; font-size: 13px; font-style: normal; font-variant: =
normal; font-weight: normal; letter-spacing: normal; line-height: =
normal; orphans: auto; text-align: start; text-indent: 0px; =
text-transform: none; white-space: normal; widows: auto; word-spacing: =
0px; -webkit-text-stroke-width: 0px; background-color: rgb(254, 254, =
254); float: none; display: inline !important;" =
class=3D"">_______________________________________________</span><br =
style=3D"font-family: Consolas, Arial; font-size: 13px; font-style: =
normal; font-variant: normal; font-weight: normal; letter-spacing: =
normal; line-height: normal; orphans: auto; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; widows: =
auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; =
background-color: rgb(254, 254, 254);" class=3D""><span =
style=3D"font-family: Consolas, Arial; font-size: 13px; font-style: =
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auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; =
background-color: rgb(254, 254, 254); float: none; display: inline =
!important;" class=3D"">Rtg-yang-coord mailing list</span><br =
style=3D"font-family: Consolas, Arial; font-size: 13px; font-style: =
normal; font-variant: normal; font-weight: normal; letter-spacing: =
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auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; =
background-color: rgb(254, 254, 254);" class=3D""><a =
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196); background-color: rgb(254, 254, 254); text-decoration: none; =
font-family: Consolas, Arial; font-size: 13px; font-style: normal; =
font-variant: normal; font-weight: normal; letter-spacing: normal; =
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text-transform: none; white-space: normal; widows: auto; word-spacing: =
0px; -webkit-text-stroke-width: 0px;" =
class=3D"">Rtg-yang-coord@ietf.org</a><br style=3D"font-family: =
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254);" class=3D""><a =
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style=3D"color: rgb(65, 131, 196); background-color: rgb(254, 254, 254); =
text-decoration: none; font-family: Consolas, Arial; font-size: 13px; =
font-style: normal; font-variant: normal; font-weight: normal; =
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background-color: rgb(254, 254, 254);" =
class=3D""></div></blockquote></div><br =
class=3D""></div></div></body></html>=

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From nobody Mon Jul 27 06:26:07 2015
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Date: Mon, 27 Jul 2015 09:25:55 -0400
Message-ID: <CAG4d1rfW44RCv9ZBzmpfeHMJ1s1va7Jh1vWwXAkGDNYiRSEJAw@mail.gmail.com>
From: Alia Atlas <akatlas@gmail.com>
To: Rob Shakir <rjs@rob.sh>
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Cc: "rtg-yang-coord@ietf.org" <rtg-yang-coord@ietf.org>, Juergen Schoenwaelder <j.schoenwaelder@jacobs-university.de>, Mahesh Jethanandani <mjethanandani@gmail.com>, YANG Doctors <yang-doctors@ietf.org>, Lou Berger <lberger@labn.net>, "Acee Lindem \(acee\)" <acee@cisco.com>, Loa Andersson <loa@pi.nu>
Subject: Re: [Rtg-yang-coord] Routing YANG Design Team Scope
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The constraint to routing was to try and pick a plausibly sized set of work
to focus on, with the assumption it would
feed into other similar work as well.

Regards,
Alia

On Mon, Jul 27, 2015 at 6:38 AM, Rob Shakir <rjs@rob.sh> wrote:

> My assumption, and understanding of the ask that the ADs put to the DT, i=
s
> that the routing design team should consider *usability* of YANG models
> from a routing perspective, and not constrain itself on essentially
> arbitrary IETF-boundaries.
>
> If the output of the DT means that we need cross-area review to further
> its work as any form of standard, or document that the IETF would choose =
to
> commit to RFC - then engagement with the relevant area should be sought, =
of
> course.
>
> I am *very* much opposed to considering that point parts of a solution
> should be set as constraints on anything that can be done relating to
> network management going forward.
>
> I have a feeling that this opinion may not be aligned with that of the
> netmod working group - it needs to be openly discussed as to what the bes=
t
> technical solution is, rather than calling foul on =E2=80=98scope=E2=80=
=99 related
> discussions.
>
> Thanks for your consideration,
> r.
>
>
>
>
> On 26 July 2015 at 20:50:41, Acee Lindem (acee) (acee@cisco.com) wrote:
>
> Juergen,
>
> Since this E-mail thread is about the hierarchy and granularity of MPLS
> models, I=E2=80=99m somewhat confused by your response. Nevertheless, I=
=E2=80=99ve updated
> the subject line to correspond to your concern.
>
> Our assumption is that the Routing YANG design team will attempt to use
> the existing models but will not be constrained by them. However, I agree
> that any changes or augmentations to the existing NETMOD RFCs would need
> to be reviewed in the NETMOD WG.
>
> Thanks,
> Acee
>
> On 7/26/15, 3:24 PM, "Juergen Schoenwaelder"
> <j.schoenwaelder@jacobs-university.de> wrote:
>
> >Dear Acee,
> >
> >please note that the interfaces model plus the IP model plus the core
> >system model plus the SNMP configuration model the IETF agreed on are
> >defined in RFC 7223, RFC 7277, RFC 7317, and RFC 7407. All these RFCs
> >were produced by the NETMOD working group. Work is starting in other
> >SDOs to extend these models. Hence, I think any attempts to replace
> >them with something different should not only be discussed on the
> >NETMOD list but also seek support from the NETMOD working group.
> >
> >Note that https://www.ietf.org/mailman/listinfo/rtg-yang-coord says:
> >
> > The rtg-yang-coord mailing list will provide a forum for
> > coordination of the development of YANG models being worked on for
> > Routing, in order to provide a consistent view to the NMS.
> >
> >It seems some of the content of draft-rtgyangdt-rtgwg-device-model-00
> >seems to leave the routing scope.
> >
> >/js
> >
> >On Sun, Jul 26, 2015 at 06:48:10PM +0000, Acee Lindem (acee) wrote:
> >> Hi Mahesh,
> >>
> >> Please comment on
> >>https://datatracker.ietf.org/doc/draft-rtgyangdt-rtgwg-device-model/ as
> >>this is the latest view of the design team.
> >>
> >> Thanks,
> >> Acee
> >>
> >> From: Rtg-yang-coord
> >><rtg-yang-coord-bounces@ietf.org<mailto:rtg-yang-coord-bounces@ietf.org=
>>
>
> >> on behalf of Mahesh Jethanandani
> >><mjethanandani@gmail.com<mailto:mjethanandani@gmail.com>>
> >> Date: Sunday, July 26, 2015 at 4:31 PM
> >> To: Lou Berger <lberger@labn.net<mailto:lberger@labn.net>>
> >> Cc: Routing YANG
> >><rtg-yang-coord@ietf.org<mailto:rtg-yang-coord@ietf.org>>, YANG Doctors
> >><yang-doctors@ietf.org<mailto:yang-doctors@ietf.org>>, Loa Andersson
> >><loa@pi.nu<mailto:loa@pi.nu>>
> >> Subject: Re: [Rtg-yang-coord] yang models intended for the mpls wg
> >>
> >> Lou,
> >>
> >> I like the approach taken in the draft
> >>draft-openconfig-mpls-consolidated-model. In particular, the approach
> >>represented in this tree model makes sense to me.
> >>
> >>
> >> +--rw mpls!
> >> +--rw global
> >> | ...
> >> +--rw te-global-attributes
> >> | ...
> >> +--rw signaling-protocols
> >> | ...
> >> +--rw lsps
> >> ...
> >>
> >>
> >> However, by its own admission, the draft says:
> >>
> >>
> >> This model does not aim to be feature complete (i.e., cover all
> >> possible aspects or features of MPLS).
> >>
> >> My suggestion would be for the MPLS WG to take up the model structure
> >>as represented above and to do a more complete work of including all
> >>features of MPLS, e.g. GMPLS.
> >>
> >> Thanks.
> >>
> >> Mahesh Jethanandani
> >> mjethanandani@gmail.com<mailto:mjethanandani@gmail.com>
> >>
> >>
> >>
> >>
> >>
> >
> >> _______________________________________________
> >> Rtg-yang-coord mailing list
> >> Rtg-yang-coord@ietf.org
> >> https://www.ietf.org/mailman/listinfo/rtg-yang-coord
> >
> >
> >--
> >Juergen Schoenwaelder Jacobs University Bremen gGmbH
> >Phone: +49 421 200 3587 Campus Ring 1 | 28759 Bremen | Germany
> >Fax: +49 421 200 3103 <http://www.jacobs-university.de/>
>
> _______________________________________________
> Rtg-yang-coord mailing list
> Rtg-yang-coord@ietf.org
> https://www.ietf.org/mailman/listinfo/rtg-yang-coord
>
>
> _______________________________________________
> Rtg-yang-coord mailing list
> Rtg-yang-coord@ietf.org
> https://www.ietf.org/mailman/listinfo/rtg-yang-coord
>
>

--001a113cae68196cfa051bdb4bf9
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div>The constraint to routing was to try and pick a plaus=
ibly sized set of work to focus on, with the assumption it would<br></div><=
div>feed into other similar work as well.</div><div class=3D"gmail_extra"><=
br></div><div class=3D"gmail_extra">Regards,</div><div class=3D"gmail_extra=
">Alia</div><div class=3D"gmail_extra"><br><div class=3D"gmail_quote">On Mo=
n, Jul 27, 2015 at 6:38 AM, Rob Shakir <span dir=3D"ltr">&lt;<a href=3D"mai=
lto:rjs@rob.sh" target=3D"_blank">rjs@rob.sh</a>&gt;</span> wrote:<br><bloc=
kquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #cc=
c solid;padding-left:1ex"><div style=3D"word-wrap:break-word"><div><p>My as=
sumption, and understanding of the ask that the ADs put to the DT, is that =
the routing design team should consider <em>usability</em> of YANG models f=
rom a routing perspective, and not constrain itself on essentially arbitrar=
y IETF-boundaries.</p>

<p>If the output of the DT means that we need cross-area review to further =
its work as any form of standard, or document that the IETF would choose to=
 commit to RFC - then engagement with the relevant area should be sought, o=
f course.</p>

<p>I am <em>very</em> much opposed to considering that point parts of a sol=
ution should be set as constraints on anything that can be done relating to=
 network management going forward.</p>

<p>I have a feeling that this opinion may not be aligned with that of the n=
etmod working group - it needs to be openly discussed as to what the best t=
echnical solution is, rather than calling foul on =E2=80=98scope=E2=80=99 r=
elated discussions.</p>

<p>Thanks for your consideration,<br>
r.</p>

<p></p></div><div><span class=3D""><div style=3D"font-family:Consolas,Arial=
;font-size:13px;color:rgba(0,0,0,1.0);margin:0px;line-height:auto"><br></di=
v> <br> <div></div> <br><p style=3D"color:#000">On 26 July 2015 at 20:50:41=
, Acee Lindem (acee) (<a href=3D"mailto:acee@cisco.com" target=3D"_blank">a=
cee@cisco.com</a>) wrote:</p> </span><blockquote type=3D"cite"><span><div><=
div></div><div><span class=3D"">Juergen, =20
<br>
<br>Since this E-mail thread is about the hierarchy and granularity of MPLS
<br>models, I=E2=80=99m somewhat confused by your response. Nevertheless, I=
=E2=80=99ve updated
<br>the subject line to correspond to your concern.
<br>
<br>Our assumption is that the Routing YANG design team will attempt to use
<br>the existing models but will not be constrained by them. However, I agr=
ee
<br>that any changes or augmentations to the existing NETMOD RFCs would nee=
d
<br>to be reviewed in the NETMOD WG.
<br>
<br>Thanks,
<br>Acee =20
<br>
<br>On 7/26/15, 3:24 PM, &quot;Juergen Schoenwaelder&quot;
<br></span><span class=3D"">&lt;<a href=3D"mailto:j.schoenwaelder@jacobs-un=
iversity.de" target=3D"_blank">j.schoenwaelder@jacobs-university.de</a>&gt;=
 wrote:
<br>
<br>&gt;Dear Acee,
<br>&gt;
<br>&gt;please note that the interfaces model plus the IP model plus the co=
re
<br>&gt;system model plus the SNMP configuration model the IETF agreed on a=
re
<br>&gt;defined in RFC 7223, RFC 7277, RFC 7317, and RFC 7407. All these RF=
Cs
<br>&gt;were produced by the NETMOD working group.  Work is starting in oth=
er
<br>&gt;SDOs to extend these models. Hence, I think any attempts to replace
<br>&gt;them with something different should not only be discussed on the
<br>&gt;NETMOD list but also seek support from the NETMOD working group.
<br>&gt;
<br></span><span class=3D"">&gt;Note that <a href=3D"https://www.ietf.org/m=
ailman/listinfo/rtg-yang-coord" target=3D"_blank">https://www.ietf.org/mail=
man/listinfo/rtg-yang-coord</a> says:
<br>&gt;
<br>&gt;    The rtg-yang-coord mailing list will provide a forum for
<br>&gt;    coordination of the development of YANG models being worked on =
for
<br>&gt;    Routing, in order to provide a consistent view to the NMS.
<br>&gt;
<br>&gt;It seems some of the content of draft-rtgyangdt-rtgwg-device-model-=
00
<br>&gt;seems to leave the routing scope.
<br>&gt;
<br>&gt;/js
<br>&gt;
<br>&gt;On Sun, Jul 26, 2015 at 06:48:10PM +0000, Acee Lindem (acee) wrote:
<br>&gt;&gt; Hi Mahesh,
<br>&gt;&gt; =20
<br>&gt;&gt; Please comment on
<br></span>&gt;&gt;<a href=3D"https://datatracker.ietf.org/doc/draft-rtgyan=
gdt-rtgwg-device-model/" target=3D"_blank">https://datatracker.ietf.org/doc=
/draft-rtgyangdt-rtgwg-device-model/</a> as
<br><span class=3D"">&gt;&gt;this is the latest view of the design team.
<br>&gt;&gt; =20
<br>&gt;&gt; Thanks,
<br>&gt;&gt; Acee
<br>&gt;&gt; =20
<br>&gt;&gt; From: Rtg-yang-coord
<br></span>&gt;&gt;&lt;<a href=3D"mailto:rtg-yang-coord-bounces@ietf.org" t=
arget=3D"_blank">rtg-yang-coord-bounces@ietf.org</a>&lt;mailto:<a href=3D"m=
ailto:rtg-yang-coord-bounces@ietf.org" target=3D"_blank">rtg-yang-coord-bou=
nces@ietf.org</a>&gt;&gt;
<br><span class=3D"">&gt;&gt; on behalf of Mahesh Jethanandani
<br></span>&gt;&gt;&lt;<a href=3D"mailto:mjethanandani@gmail.com" target=3D=
"_blank">mjethanandani@gmail.com</a>&lt;mailto:<a href=3D"mailto:mjethanand=
ani@gmail.com" target=3D"_blank">mjethanandani@gmail.com</a>&gt;&gt;
<br><span class=3D"">&gt;&gt; Date: Sunday, July 26, 2015 at 4:31 PM
<br></span>&gt;&gt; To: Lou Berger &lt;<a href=3D"mailto:lberger@labn.net" =
target=3D"_blank">lberger@labn.net</a>&lt;mailto:<a href=3D"mailto:lberger@=
labn.net" target=3D"_blank">lberger@labn.net</a>&gt;&gt;
<br>&gt;&gt; Cc: Routing YANG
<br>&gt;&gt;&lt;<a href=3D"mailto:rtg-yang-coord@ietf.org" target=3D"_blank=
">rtg-yang-coord@ietf.org</a>&lt;mailto:<a href=3D"mailto:rtg-yang-coord@ie=
tf.org" target=3D"_blank">rtg-yang-coord@ietf.org</a>&gt;&gt;, YANG Doctors
<br>&gt;&gt;&lt;<a href=3D"mailto:yang-doctors@ietf.org" target=3D"_blank">=
yang-doctors@ietf.org</a>&lt;mailto:<a href=3D"mailto:yang-doctors@ietf.org=
" target=3D"_blank">yang-doctors@ietf.org</a>&gt;&gt;, Loa Andersson
<br>&gt;&gt;&lt;<a href=3D"mailto:loa@pi.nu" target=3D"_blank">loa@pi.nu</a=
>&lt;mailto:<a href=3D"mailto:loa@pi.nu" target=3D"_blank">loa@pi.nu</a>&gt=
;&gt;
<br><span class=3D"">&gt;&gt; Subject: Re: [Rtg-yang-coord] yang models int=
ended for the mpls wg
<br>&gt;&gt; =20
<br>&gt;&gt; Lou,
<br>&gt;&gt; =20
<br>&gt;&gt; I like the approach taken in the draft
<br>&gt;&gt;draft-openconfig-mpls-consolidated-model. In particular, the ap=
proach
<br>&gt;&gt;represented in this tree model makes sense to me.
<br>&gt;&gt; =20
<br>&gt;&gt; =20
<br>&gt;&gt;    +--rw mpls!
<br>&gt;&gt;          +--rw global
<br>&gt;&gt;          |     ...
<br>&gt;&gt;          +--rw te-global-attributes
<br>&gt;&gt;          |     ...
<br>&gt;&gt;          +--rw signaling-protocols
<br>&gt;&gt;          |     ...
<br>&gt;&gt;          +--rw lsps
<br>&gt;&gt;                ...
<br>&gt;&gt; =20
<br>&gt;&gt; =20
<br>&gt;&gt; However, by its own admission, the draft says:
<br>&gt;&gt; =20
<br>&gt;&gt; =20
<br>&gt;&gt; This model does not aim to be feature complete (i.e., cover al=
l
<br>&gt;&gt;    possible aspects or features of MPLS).
<br>&gt;&gt; =20
<br>&gt;&gt; My suggestion would be for the MPLS WG to take up the model st=
ructure
<br>&gt;&gt;as represented above and to do a more complete work of includin=
g all
<br>&gt;&gt;features of MPLS, e.g. GMPLS.
<br>&gt;&gt; =20
<br>&gt;&gt; Thanks.
<br>&gt;&gt; =20
<br>&gt;&gt; Mahesh Jethanandani
<br></span>&gt;&gt; <a href=3D"mailto:mjethanandani@gmail.com" target=3D"_b=
lank">mjethanandani@gmail.com</a>&lt;mailto:<a href=3D"mailto:mjethanandani=
@gmail.com" target=3D"_blank">mjethanandani@gmail.com</a>&gt;
<br>&gt;&gt; =20
<br>&gt;&gt; =20
<br>&gt;&gt; =20
<br>&gt;&gt; =20
<br>&gt;&gt; =20
<br>&gt;
<br>&gt;&gt; _______________________________________________
<br>&gt;&gt; Rtg-yang-coord mailing list
<br>&gt;&gt; <a href=3D"mailto:Rtg-yang-coord@ietf.org" target=3D"_blank">R=
tg-yang-coord@ietf.org</a>
<br>&gt;&gt; <a href=3D"https://www.ietf.org/mailman/listinfo/rtg-yang-coor=
d" target=3D"_blank">https://www.ietf.org/mailman/listinfo/rtg-yang-coord</=
a>
<br><span class=3D"">&gt;
<br>&gt;
<br>&gt;-- =20
<br>&gt;Juergen Schoenwaelder           Jacobs University Bremen gGmbH
<br></span>&gt;Phone: <a href=3D"tel:%2B49%20421%20200%203587" value=3D"+49=
4212003587" target=3D"_blank">+49 421 200 3587</a>         Campus Ring 1 | =
28759 Bremen | Germany
<br>&gt;Fax:   <a href=3D"tel:%2B49%20421%20200%203103" value=3D"+494212003=
103" target=3D"_blank">+49 421 200 3103</a>         &lt;<a href=3D"http://w=
ww.jacobs-university.de/" target=3D"_blank">http://www.jacobs-university.de=
/</a>&gt;
<br>
<br>_______________________________________________<br>Rtg-yang-coord maili=
ng list<span class=3D""><br><a href=3D"mailto:Rtg-yang-coord@ietf.org" targ=
et=3D"_blank">Rtg-yang-coord@ietf.org</a><br><a href=3D"https://www.ietf.or=
g/mailman/listinfo/rtg-yang-coord" target=3D"_blank">https://www.ietf.org/m=
ailman/listinfo/rtg-yang-coord</a><br></span></div></div></span></blockquot=
e></div><div><p></p></div></div><br>_______________________________________=
________<br>
Rtg-yang-coord mailing list<br>
<a href=3D"mailto:Rtg-yang-coord@ietf.org">Rtg-yang-coord@ietf.org</a><br>
<a href=3D"https://www.ietf.org/mailman/listinfo/rtg-yang-coord" rel=3D"nor=
eferrer" target=3D"_blank">https://www.ietf.org/mailman/listinfo/rtg-yang-c=
oord</a><br>
<br></blockquote></div><br></div></div>

--001a113cae68196cfa051bdb4bf9--


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From: "Acee Lindem (acee)" <acee@cisco.com>
To: Mahesh Jethanandani <mjethanandani@gmail.com>
Thread-Topic: Routing YANG Design Team Scope
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Date: Mon, 27 Jul 2015 14:14:32 +0000
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To: Gregory Mirsky <gregory.mirsky@ericsson.com>, Mahesh Jethanandani <mjethanandani@gmail.com>, Loa Andersson <loa@pi.nu>
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From: Tom Taylor <tom.taylor.stds@gmail.com>
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Date: Mon, 27 Jul 2015 11:06:01 -0400
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Subject: Re: [Rtg-yang-coord] yang models intended for the mpls wg
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LSP ping really corresponds to the generic tracert model, in that it 
provides hop-by-hop path characterization. I can see the LIME tracert 
RPC being invoked, and the MPLS nodes returning the parameters defined 
for that RPC to the extent that they correspond to what LSP ping reports.

BFD seems to correspond quite nicely to LIME ping in terms of the 
function performed.

Tom

On 27/07/2015 1:36 AM, Gregory Mirsky wrote:
> Hi Tom,
> what is relationship between MPLS LSP Ping and "generic ping" models? Or, between BFD and "generic continuity check"?
>
> 	Regards,
> 		Greg
>
> -----Original Message-----
> From: Rtg-yang-coord [mailto:rtg-yang-coord-bounces@ietf.org] On Behalf Of Tom Taylor
> Sent: Saturday, July 25, 2015 5:19 AM
> To: Mahesh Jethanandani; Loa Andersson
> Cc: rtg-yang-coord@ietf.org; YANG Doctors
> Subject: Re: [Rtg-yang-coord] yang models intended for the mpls wg
>
> The generic ping module is a LIME work item.
>
> Tom Taylor
>
> On 24/07/2015 9:24 AM, Mahesh Jethanandani wrote:
>> [with yang doctor hat on]
>>
>> Loa,
>>
>> Has there been any discussion around how these models interact with each other or how the mpls WG would like to see the models structured.
>>
>> For example, from this list of models (and I admit I have not looked at a complete list of mpls related yang models or each in detail), a couple of questions arise.
>>
>> - Is there a plan for a generic mpls yang model?
>> - plan for a more specific mpls-tp, mpls-te etc. yang model (they could be an extension of the more generic mpls model)?
>> - plan for a generic ping module (may belong in NETMOD WG)?
>> - plan for a mpls ping module (again an extension of the more generic ping module that interfaces with mpls module)?
>> - plan for a ldp module that interfaces with the mpls module?
>> - plan for a rsvp-te module that interfaces with mpls-te module?
>>
>> Having some structure to the models would probably help these and other yang authors in their design.
>>
>> Thanks.
>>
>> Mahesh Jethanandani
>> mjethanandani@gmail.com
>>
>>> On Jul 24, 2015, at 11:39 AM, Loa Andersson <loa@pi.nu> wrote:
>>>
>>> Folks,
>>>
>>> There are four yang models intended for the MPLS working group, we
>>> have not yet started the process of adoption as working group documents.
>>> The four documents are:
>>>
>>> 1. draft-zhang-mpls-tp-yang-oam (announced earlier) 2.
>>> draft-zheng-mpls-lsp-ping-yang-cfg (announced now) 3.
>>> draft-openconfig-mpls-consolidated-model (announced now) 4.
>>> draft-raza-mpls-ldp-mldp-yang (announced now)
>>>
>>> /Loa
>>>
>>>
>>>
>>>
>>> --
>>>
>>>
>>> Loa Andersson                        email: loa@mail01.huawei.com
>>> Senior MPLS Expert                          loa@pi.nu
>>> Huawei Technologies (consultant)     phone: +46 739 81 21 64
>>>
>>> _______________________________________________
>>> Rtg-yang-coord mailing list
>>> Rtg-yang-coord@ietf.org
>>> https://www.ietf.org/mailman/listinfo/rtg-yang-coord
>>
>> _______________________________________________
>> Rtg-yang-coord mailing list
>> Rtg-yang-coord@ietf.org
>> https://www.ietf.org/mailman/listinfo/rtg-yang-coord
>>
>
> _______________________________________________
> Rtg-yang-coord mailing list
> Rtg-yang-coord@ietf.org
> https://www.ietf.org/mailman/listinfo/rtg-yang-coord
>


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From: Gregory Mirsky <gregory.mirsky@ericsson.com>
To: Tom Taylor <tom.taylor.stds@gmail.com>, Mahesh Jethanandani <mjethanandani@gmail.com>, Loa Andersson <loa@pi.nu>
Thread-Topic: [Rtg-yang-coord] yang models intended for the mpls wg
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Date: Mon, 27 Jul 2015 15:18:19 +0000
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References: <55B207DD.8060502@pi.nu> <5436B667-6766-4F3D-902E-C4929D4A0240@gmail.com> <55B37EB3.60508@gmail.com> <7347100B5761DC41A166AC17F22DF11221884D17@eusaamb103.ericsson.se> <55B648D9.7060403@gmail.com>
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Subject: Re: [Rtg-yang-coord] yang models intended for the mpls wg
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Hi Tom,
I think I cannot agree with any of your comparisons.
LSP Ping provides both on-demand ping and traceroute functions.
BFD, if you refer to RFC 5880, provides variety of functions, primarily as =
proactive continuity check (Asynchronous and on-demand modes, as well as pi=
ng by Echo mode). RFC 5884 BFD over MPLS LSP consider only Asynchronous mod=
e.
One can argue that ping may be used as proactive continuity check mechanism=
 but that is not what it was originally designed and such application would=
, most likely, require use of another application, e.g. Measurement Agent p=
er LMAP Reference model.

I think it would be really helpful to define relationships between objects =
of LIME model and models specified in MPLS, BFD and other groups that had d=
eveloped OAM tools that broadly used in the industry.

	Regards,
		Greg

-----Original Message-----
From: Tom Taylor [mailto:tom.taylor.stds@gmail.com]=20
Sent: Monday, July 27, 2015 8:06 AM
To: Gregory Mirsky; Mahesh Jethanandani; Loa Andersson
Cc: rtg-yang-coord@ietf.org; YANG Doctors
Subject: Re: [Rtg-yang-coord] yang models intended for the mpls wg

LSP ping really corresponds to the generic tracert model, in that it provid=
es hop-by-hop path characterization. I can see the LIME tracert RPC being i=
nvoked, and the MPLS nodes returning the parameters defined for that RPC to=
 the extent that they correspond to what LSP ping reports.

BFD seems to correspond quite nicely to LIME ping in terms of the function =
performed.

Tom

On 27/07/2015 1:36 AM, Gregory Mirsky wrote:
> Hi Tom,
> what is relationship between MPLS LSP Ping and "generic ping" models? Or,=
 between BFD and "generic continuity check"?
>
> 	Regards,
> 		Greg
>
> -----Original Message-----
> From: Rtg-yang-coord [mailto:rtg-yang-coord-bounces@ietf.org] On=20
> Behalf Of Tom Taylor
> Sent: Saturday, July 25, 2015 5:19 AM
> To: Mahesh Jethanandani; Loa Andersson
> Cc: rtg-yang-coord@ietf.org; YANG Doctors
> Subject: Re: [Rtg-yang-coord] yang models intended for the mpls wg
>
> The generic ping module is a LIME work item.
>
> Tom Taylor
>
> On 24/07/2015 9:24 AM, Mahesh Jethanandani wrote:
>> [with yang doctor hat on]
>>
>> Loa,
>>
>> Has there been any discussion around how these models interact with each=
 other or how the mpls WG would like to see the models structured.
>>
>> For example, from this list of models (and I admit I have not looked at =
a complete list of mpls related yang models or each in detail), a couple of=
 questions arise.
>>
>> - Is there a plan for a generic mpls yang model?
>> - plan for a more specific mpls-tp, mpls-te etc. yang model (they could =
be an extension of the more generic mpls model)?
>> - plan for a generic ping module (may belong in NETMOD WG)?
>> - plan for a mpls ping module (again an extension of the more generic pi=
ng module that interfaces with mpls module)?
>> - plan for a ldp module that interfaces with the mpls module?
>> - plan for a rsvp-te module that interfaces with mpls-te module?
>>
>> Having some structure to the models would probably help these and other =
yang authors in their design.
>>
>> Thanks.
>>
>> Mahesh Jethanandani
>> mjethanandani@gmail.com
>>
>>> On Jul 24, 2015, at 11:39 AM, Loa Andersson <loa@pi.nu> wrote:
>>>
>>> Folks,
>>>
>>> There are four yang models intended for the MPLS working group, we=20
>>> have not yet started the process of adoption as working group documents=
.
>>> The four documents are:
>>>
>>> 1. draft-zhang-mpls-tp-yang-oam (announced earlier) 2.
>>> draft-zheng-mpls-lsp-ping-yang-cfg (announced now) 3.
>>> draft-openconfig-mpls-consolidated-model (announced now) 4.
>>> draft-raza-mpls-ldp-mldp-yang (announced now)
>>>
>>> /Loa
>>>
>>>
>>>
>>>
>>> --
>>>
>>>
>>> Loa Andersson                        email: loa@mail01.huawei.com
>>> Senior MPLS Expert                          loa@pi.nu
>>> Huawei Technologies (consultant)     phone: +46 739 81 21 64
>>>
>>> _______________________________________________
>>> Rtg-yang-coord mailing list
>>> Rtg-yang-coord@ietf.org
>>> https://www.ietf.org/mailman/listinfo/rtg-yang-coord
>>
>> _______________________________________________
>> Rtg-yang-coord mailing list
>> Rtg-yang-coord@ietf.org
>> https://www.ietf.org/mailman/listinfo/rtg-yang-coord
>>
>
> _______________________________________________
> Rtg-yang-coord mailing list
> Rtg-yang-coord@ietf.org
> https://www.ietf.org/mailman/listinfo/rtg-yang-coord
>


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To: Gregory Mirsky <gregory.mirsky@ericsson.com>, Mahesh Jethanandani <mjethanandani@gmail.com>, Loa Andersson <loa@pi.nu>
References: <55B207DD.8060502@pi.nu> <5436B667-6766-4F3D-902E-C4929D4A0240@gmail.com> <55B37EB3.60508@gmail.com> <7347100B5761DC41A166AC17F22DF11221884D17@eusaamb103.ericsson.se> <55B648D9.7060403@gmail.com> <7347100B5761DC41A166AC17F22DF1122188504D@eusaamb103.ericsson.se>
From: Tom Taylor <tom.taylor.stds@gmail.com>
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Date: Mon, 27 Jul 2015 11:34:15 -0400
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Subject: Re: [Rtg-yang-coord] yang models intended for the mpls wg
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I am not claiming that the capabilities of LSP ping are limited to those 
of tracert, or that the capabilities of BFD are limited to those of 
ping. I am saying that if I want to request these two functions 
(continuity check and hop-by-hop path characterization) at a generic 
level then the corresponding implementations at the MPLS 
technology-specific level would be invoked when the LIME RPCs were 
invoked at the boundaries of an MPLS segment.

The idea would be that once a fault was localized to that segment and to 
the MPLS layer as opposed to a supporting layer, the manager could 
invoke the technology-specific models as necessary to get details.

Tom

On 27/07/2015 11:18 AM, Gregory Mirsky wrote:
> Hi Tom,
> I think I cannot agree with any of your comparisons.
> LSP Ping provides both on-demand ping and traceroute functions.
> BFD, if you refer to RFC 5880, provides variety of functions, primarily as proactive continuity check (Asynchronous and on-demand modes, as well as ping by Echo mode). RFC 5884 BFD over MPLS LSP consider only Asynchronous mode.
> One can argue that ping may be used as proactive continuity check mechanism but that is not what it was originally designed and such application would, most likely, require use of another application, e.g. Measurement Agent per LMAP Reference model.
>
> I think it would be really helpful to define relationships between objects of LIME model and models specified in MPLS, BFD and other groups that had developed OAM tools that broadly used in the industry.
>
> 	Regards,
> 		Greg
>
> -----Original Message-----
> From: Tom Taylor [mailto:tom.taylor.stds@gmail.com]
> Sent: Monday, July 27, 2015 8:06 AM
> To: Gregory Mirsky; Mahesh Jethanandani; Loa Andersson
> Cc: rtg-yang-coord@ietf.org; YANG Doctors
> Subject: Re: [Rtg-yang-coord] yang models intended for the mpls wg
>
> LSP ping really corresponds to the generic tracert model, in that it provides hop-by-hop path characterization. I can see the LIME tracert RPC being invoked, and the MPLS nodes returning the parameters defined for that RPC to the extent that they correspond to what LSP ping reports.
>
> BFD seems to correspond quite nicely to LIME ping in terms of the function performed.
>
> Tom
>
> On 27/07/2015 1:36 AM, Gregory Mirsky wrote:
>> Hi Tom,
>> what is relationship between MPLS LSP Ping and "generic ping" models? Or, between BFD and "generic continuity check"?
>>
>> 	Regards,
>> 		Greg
>>
>> -----Original Message-----
>> From: Rtg-yang-coord [mailto:rtg-yang-coord-bounces@ietf.org] On
>> Behalf Of Tom Taylor
>> Sent: Saturday, July 25, 2015 5:19 AM
>> To: Mahesh Jethanandani; Loa Andersson
>> Cc: rtg-yang-coord@ietf.org; YANG Doctors
>> Subject: Re: [Rtg-yang-coord] yang models intended for the mpls wg
>>
>> The generic ping module is a LIME work item.
>>
>> Tom Taylor
>>
>> On 24/07/2015 9:24 AM, Mahesh Jethanandani wrote:
>>> [with yang doctor hat on]
>>>
>>> Loa,
>>>
>>> Has there been any discussion around how these models interact with each other or how the mpls WG would like to see the models structured.
>>>
>>> For example, from this list of models (and I admit I have not looked at a complete list of mpls related yang models or each in detail), a couple of questions arise.
>>>
>>> - Is there a plan for a generic mpls yang model?
>>> - plan for a more specific mpls-tp, mpls-te etc. yang model (they could be an extension of the more generic mpls model)?
>>> - plan for a generic ping module (may belong in NETMOD WG)?
>>> - plan for a mpls ping module (again an extension of the more generic ping module that interfaces with mpls module)?
>>> - plan for a ldp module that interfaces with the mpls module?
>>> - plan for a rsvp-te module that interfaces with mpls-te module?
>>>
>>> Having some structure to the models would probably help these and other yang authors in their design.
>>>
>>> Thanks.
>>>
>>> Mahesh Jethanandani
>>> mjethanandani@gmail.com
>>>
>>>> On Jul 24, 2015, at 11:39 AM, Loa Andersson <loa@pi.nu> wrote:
>>>>
>>>> Folks,
>>>>
>>>> There are four yang models intended for the MPLS working group, we
>>>> have not yet started the process of adoption as working group documents.
>>>> The four documents are:
>>>>
>>>> 1. draft-zhang-mpls-tp-yang-oam (announced earlier) 2.
>>>> draft-zheng-mpls-lsp-ping-yang-cfg (announced now) 3.
>>>> draft-openconfig-mpls-consolidated-model (announced now) 4.
>>>> draft-raza-mpls-ldp-mldp-yang (announced now)
>>>>
>>>> /Loa
>>>>
>>>>
>>>>
>>>>
>>>> --
>>>>
>>>>
>>>> Loa Andersson                        email: loa@mail01.huawei.com
>>>> Senior MPLS Expert                          loa@pi.nu
>>>> Huawei Technologies (consultant)     phone: +46 739 81 21 64
>>>>
>>>> _______________________________________________
>>>> Rtg-yang-coord mailing list
>>>> Rtg-yang-coord@ietf.org
>>>> https://www.ietf.org/mailman/listinfo/rtg-yang-coord
>>>
>>> _______________________________________________
>>> Rtg-yang-coord mailing list
>>> Rtg-yang-coord@ietf.org
>>> https://www.ietf.org/mailman/listinfo/rtg-yang-coord
>>>
>>
>> _______________________________________________
>> Rtg-yang-coord mailing list
>> Rtg-yang-coord@ietf.org
>> https://www.ietf.org/mailman/listinfo/rtg-yang-coord
>>
>


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From: Gregory Mirsky <gregory.mirsky@ericsson.com>
To: Tom Taylor <tom.taylor.stds@gmail.com>, Mahesh Jethanandani <mjethanandani@gmail.com>, Loa Andersson <loa@pi.nu>
Thread-Topic: [Rtg-yang-coord] yang models intended for the mpls wg
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Date: Mon, 27 Jul 2015 15:51:12 +0000
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Subject: Re: [Rtg-yang-coord] yang models intended for the mpls wg
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Hi Tom,
I don't think that BFD is or will be used as on-demand OAM tool as it does =
not have localization capability. Ping or traceroute are more suitable, in =
my opinion. But if that is how LIME model maps existing OAM tools, then I'd=
 encourage presenting and asking for review of the LIME model by WGs that d=
esigned this OAM mechanisms, e.g. MPLS Ping and BFD.

	Regards,
		Greg

-----Original Message-----
From: Tom Taylor [mailto:tom.taylor.stds@gmail.com]=20
Sent: Monday, July 27, 2015 8:34 AM
To: Gregory Mirsky; Mahesh Jethanandani; Loa Andersson
Cc: rtg-yang-coord@ietf.org; YANG Doctors
Subject: Re: [Rtg-yang-coord] yang models intended for the mpls wg

I am not claiming that the capabilities of LSP ping are limited to those of=
 tracert, or that the capabilities of BFD are limited to those of ping. I a=
m saying that if I want to request these two functions (continuity check an=
d hop-by-hop path characterization) at a generic level then the correspondi=
ng implementations at the MPLS technology-specific level would be invoked w=
hen the LIME RPCs were invoked at the boundaries of an MPLS segment.

The idea would be that once a fault was localized to that segment and to th=
e MPLS layer as opposed to a supporting layer, the manager could invoke the=
 technology-specific models as necessary to get details.

Tom

On 27/07/2015 11:18 AM, Gregory Mirsky wrote:
> Hi Tom,
> I think I cannot agree with any of your comparisons.
> LSP Ping provides both on-demand ping and traceroute functions.
> BFD, if you refer to RFC 5880, provides variety of functions, primarily a=
s proactive continuity check (Asynchronous and on-demand modes, as well as =
ping by Echo mode). RFC 5884 BFD over MPLS LSP consider only Asynchronous m=
ode.
> One can argue that ping may be used as proactive continuity check mechani=
sm but that is not what it was originally designed and such application wou=
ld, most likely, require use of another application, e.g. Measurement Agent=
 per LMAP Reference model.
>
> I think it would be really helpful to define relationships between object=
s of LIME model and models specified in MPLS, BFD and other groups that had=
 developed OAM tools that broadly used in the industry.
>
> 	Regards,
> 		Greg
>
> -----Original Message-----
> From: Tom Taylor [mailto:tom.taylor.stds@gmail.com]
> Sent: Monday, July 27, 2015 8:06 AM
> To: Gregory Mirsky; Mahesh Jethanandani; Loa Andersson
> Cc: rtg-yang-coord@ietf.org; YANG Doctors
> Subject: Re: [Rtg-yang-coord] yang models intended for the mpls wg
>
> LSP ping really corresponds to the generic tracert model, in that it prov=
ides hop-by-hop path characterization. I can see the LIME tracert RPC being=
 invoked, and the MPLS nodes returning the parameters defined for that RPC =
to the extent that they correspond to what LSP ping reports.
>
> BFD seems to correspond quite nicely to LIME ping in terms of the functio=
n performed.
>
> Tom
>
> On 27/07/2015 1:36 AM, Gregory Mirsky wrote:
>> Hi Tom,
>> what is relationship between MPLS LSP Ping and "generic ping" models? Or=
, between BFD and "generic continuity check"?
>>
>> 	Regards,
>> 		Greg
>>
>> -----Original Message-----
>> From: Rtg-yang-coord [mailto:rtg-yang-coord-bounces@ietf.org] On=20
>> Behalf Of Tom Taylor
>> Sent: Saturday, July 25, 2015 5:19 AM
>> To: Mahesh Jethanandani; Loa Andersson
>> Cc: rtg-yang-coord@ietf.org; YANG Doctors
>> Subject: Re: [Rtg-yang-coord] yang models intended for the mpls wg
>>
>> The generic ping module is a LIME work item.
>>
>> Tom Taylor
>>
>> On 24/07/2015 9:24 AM, Mahesh Jethanandani wrote:
>>> [with yang doctor hat on]
>>>
>>> Loa,
>>>
>>> Has there been any discussion around how these models interact with eac=
h other or how the mpls WG would like to see the models structured.
>>>
>>> For example, from this list of models (and I admit I have not looked at=
 a complete list of mpls related yang models or each in detail), a couple o=
f questions arise.
>>>
>>> - Is there a plan for a generic mpls yang model?
>>> - plan for a more specific mpls-tp, mpls-te etc. yang model (they could=
 be an extension of the more generic mpls model)?
>>> - plan for a generic ping module (may belong in NETMOD WG)?
>>> - plan for a mpls ping module (again an extension of the more generic p=
ing module that interfaces with mpls module)?
>>> - plan for a ldp module that interfaces with the mpls module?
>>> - plan for a rsvp-te module that interfaces with mpls-te module?
>>>
>>> Having some structure to the models would probably help these and other=
 yang authors in their design.
>>>
>>> Thanks.
>>>
>>> Mahesh Jethanandani
>>> mjethanandani@gmail.com
>>>
>>>> On Jul 24, 2015, at 11:39 AM, Loa Andersson <loa@pi.nu> wrote:
>>>>
>>>> Folks,
>>>>
>>>> There are four yang models intended for the MPLS working group, we=20
>>>> have not yet started the process of adoption as working group document=
s.
>>>> The four documents are:
>>>>
>>>> 1. draft-zhang-mpls-tp-yang-oam (announced earlier) 2.
>>>> draft-zheng-mpls-lsp-ping-yang-cfg (announced now) 3.
>>>> draft-openconfig-mpls-consolidated-model (announced now) 4.
>>>> draft-raza-mpls-ldp-mldp-yang (announced now)
>>>>
>>>> /Loa
>>>>
>>>>
>>>>
>>>>
>>>> --
>>>>
>>>>
>>>> Loa Andersson                        email: loa@mail01.huawei.com
>>>> Senior MPLS Expert                          loa@pi.nu
>>>> Huawei Technologies (consultant)     phone: +46 739 81 21 64
>>>>
>>>> _______________________________________________
>>>> Rtg-yang-coord mailing list
>>>> Rtg-yang-coord@ietf.org
>>>> https://www.ietf.org/mailman/listinfo/rtg-yang-coord
>>>
>>> _______________________________________________
>>> Rtg-yang-coord mailing list
>>> Rtg-yang-coord@ietf.org
>>> https://www.ietf.org/mailman/listinfo/rtg-yang-coord
>>>
>>
>> _______________________________________________
>> Rtg-yang-coord mailing list
>> Rtg-yang-coord@ietf.org
>> https://www.ietf.org/mailman/listinfo/rtg-yang-coord
>>
>


From nobody Mon Jul 27 09:34:43 2015
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To: Gregory Mirsky <gregory.mirsky@ericsson.com>, Mahesh Jethanandani <mjethanandani@gmail.com>, Loa Andersson <loa@pi.nu>
References: <55B207DD.8060502@pi.nu> <5436B667-6766-4F3D-902E-C4929D4A0240@gmail.com> <55B37EB3.60508@gmail.com> <7347100B5761DC41A166AC17F22DF11221884D17@eusaamb103.ericsson.se> <55B648D9.7060403@gmail.com> <7347100B5761DC41A166AC17F22DF1122188504D@eusaamb103.ericsson.se> <55B64F77.9010308@gmail.com> <7347100B5761DC41A166AC17F22DF112218850B1@eusaamb103.ericsson.se>
From: Tom Taylor <tom.taylor.stds@gmail.com>
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Date: Mon, 27 Jul 2015 12:34:30 -0400
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Subject: Re: [Rtg-yang-coord] yang models intended for the mpls wg
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I do not consider ping to have localization capability. That's why I 
consider BFD to be the functional equivalent.

Review is certainly something that LIME will welcome, I'm sure.

Tom

On 27/07/2015 11:51 AM, Gregory Mirsky wrote:
> Hi Tom,
> I don't think that BFD is or will be used as on-demand OAM tool as it does not have localization capability. Ping or traceroute are more suitable, in my opinion. But if that is how LIME model maps existing OAM tools, then I'd encourage presenting and asking for review of the LIME model by WGs that designed this OAM mechanisms, e.g. MPLS Ping and BFD.
>
> 	Regards,
> 		Greg
>
> -----Original Message-----
> From: Tom Taylor [mailto:tom.taylor.stds@gmail.com]
> Sent: Monday, July 27, 2015 8:34 AM
> To: Gregory Mirsky; Mahesh Jethanandani; Loa Andersson
> Cc: rtg-yang-coord@ietf.org; YANG Doctors
> Subject: Re: [Rtg-yang-coord] yang models intended for the mpls wg
>
> I am not claiming that the capabilities of LSP ping are limited to those of tracert, or that the capabilities of BFD are limited to those of ping. I am saying that if I want to request these two functions (continuity check and hop-by-hop path characterization) at a generic level then the corresponding implementations at the MPLS technology-specific level would be invoked when the LIME RPCs were invoked at the boundaries of an MPLS segment.
>
> The idea would be that once a fault was localized to that segment and to the MPLS layer as opposed to a supporting layer, the manager could invoke the technology-specific models as necessary to get details.
>
> Tom
>
> On 27/07/2015 11:18 AM, Gregory Mirsky wrote:
>> Hi Tom,
>> I think I cannot agree with any of your comparisons.
>> LSP Ping provides both on-demand ping and traceroute functions.
>> BFD, if you refer to RFC 5880, provides variety of functions, primarily as proactive continuity check (Asynchronous and on-demand modes, as well as ping by Echo mode). RFC 5884 BFD over MPLS LSP consider only Asynchronous mode.
>> One can argue that ping may be used as proactive continuity check mechanism but that is not what it was originally designed and such application would, most likely, require use of another application, e.g. Measurement Agent per LMAP Reference model.
>>
>> I think it would be really helpful to define relationships between objects of LIME model and models specified in MPLS, BFD and other groups that had developed OAM tools that broadly used in the industry.
>>
>> 	Regards,
>> 		Greg
>>
>> -----Original Message-----
>> From: Tom Taylor [mailto:tom.taylor.stds@gmail.com]
>> Sent: Monday, July 27, 2015 8:06 AM
>> To: Gregory Mirsky; Mahesh Jethanandani; Loa Andersson
>> Cc: rtg-yang-coord@ietf.org; YANG Doctors
>> Subject: Re: [Rtg-yang-coord] yang models intended for the mpls wg
>>
>> LSP ping really corresponds to the generic tracert model, in that it provides hop-by-hop path characterization. I can see the LIME tracert RPC being invoked, and the MPLS nodes returning the parameters defined for that RPC to the extent that they correspond to what LSP ping reports.
>>
>> BFD seems to correspond quite nicely to LIME ping in terms of the function performed.
>>
>> Tom
>>
>> On 27/07/2015 1:36 AM, Gregory Mirsky wrote:
>>> Hi Tom,
>>> what is relationship between MPLS LSP Ping and "generic ping" models? Or, between BFD and "generic continuity check"?
>>>
>>> 	Regards,
>>> 		Greg
>>>
>>> -----Original Message-----
>>> From: Rtg-yang-coord [mailto:rtg-yang-coord-bounces@ietf.org] On
>>> Behalf Of Tom Taylor
>>> Sent: Saturday, July 25, 2015 5:19 AM
>>> To: Mahesh Jethanandani; Loa Andersson
>>> Cc: rtg-yang-coord@ietf.org; YANG Doctors
>>> Subject: Re: [Rtg-yang-coord] yang models intended for the mpls wg
>>>
>>> The generic ping module is a LIME work item.
>>>
>>> Tom Taylor
>>>
>>> On 24/07/2015 9:24 AM, Mahesh Jethanandani wrote:
>>>> [with yang doctor hat on]
>>>>
>>>> Loa,
>>>>
>>>> Has there been any discussion around how these models interact with each other or how the mpls WG would like to see the models structured.
>>>>
>>>> For example, from this list of models (and I admit I have not looked at a complete list of mpls related yang models or each in detail), a couple of questions arise.
>>>>
>>>> - Is there a plan for a generic mpls yang model?
>>>> - plan for a more specific mpls-tp, mpls-te etc. yang model (they could be an extension of the more generic mpls model)?
>>>> - plan for a generic ping module (may belong in NETMOD WG)?
>>>> - plan for a mpls ping module (again an extension of the more generic ping module that interfaces with mpls module)?
>>>> - plan for a ldp module that interfaces with the mpls module?
>>>> - plan for a rsvp-te module that interfaces with mpls-te module?
>>>>
>>>> Having some structure to the models would probably help these and other yang authors in their design.
>>>>
>>>> Thanks.
>>>>
>>>> Mahesh Jethanandani
>>>> mjethanandani@gmail.com
>>>>
>>>>> On Jul 24, 2015, at 11:39 AM, Loa Andersson <loa@pi.nu> wrote:
>>>>>
>>>>> Folks,
>>>>>
>>>>> There are four yang models intended for the MPLS working group, we
>>>>> have not yet started the process of adoption as working group documents.
>>>>> The four documents are:
>>>>>
>>>>> 1. draft-zhang-mpls-tp-yang-oam (announced earlier) 2.
>>>>> draft-zheng-mpls-lsp-ping-yang-cfg (announced now) 3.
>>>>> draft-openconfig-mpls-consolidated-model (announced now) 4.
>>>>> draft-raza-mpls-ldp-mldp-yang (announced now)
>>>>>
>>>>> /Loa
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> --
>>>>>
>>>>>
>>>>> Loa Andersson                        email: loa@mail01.huawei.com
>>>>> Senior MPLS Expert                          loa@pi.nu
>>>>> Huawei Technologies (consultant)     phone: +46 739 81 21 64
>>>>>
>>>>> _______________________________________________
>>>>> Rtg-yang-coord mailing list
>>>>> Rtg-yang-coord@ietf.org
>>>>> https://www.ietf.org/mailman/listinfo/rtg-yang-coord
>>>>
>>>> _______________________________________________
>>>> Rtg-yang-coord mailing list
>>>> Rtg-yang-coord@ietf.org
>>>> https://www.ietf.org/mailman/listinfo/rtg-yang-coord
>>>>
>>>
>>> _______________________________________________
>>> Rtg-yang-coord mailing list
>>> Rtg-yang-coord@ietf.org
>>> https://www.ietf.org/mailman/listinfo/rtg-yang-coord
>>>
>>
>


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From: Mahesh Jethanandani <mjethanandani@gmail.com>
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Date: Mon, 27 Jul 2015 08:49:53 -0700
To: "Acee Lindem (acee)" <acee@cisco.com>
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Subject: Re: [Rtg-yang-coord] Routing YANG Design Team Scope
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Acee,

The boiler plate goals and approach does not answer what I thought was a ver=
y specific question. Let me reiterate:

What was thought behind defining a mpls feature in the devices model, vs say=
 defining networking-instance as a 'type identityref=E2=80=99 which would fo=
rm a base identity, and from which specific networking-instance types such a=
s mpls would be derived?=20

The latter in my mind lays the framework for how models could augment the ba=
se devices model without defining each and every feature, while the former h=
as to define at least a basic model for each feature which then would have t=
o be augmented anyway to realize the full feature.

Mahesh Jethanandani
mjethanandani@gmail.com

> On Jul 27, 2015, at 7:14 AM, Acee Lindem (acee) <acee@cisco.com> wrote:
>=20
> Is the idea that the device model is trying to define everything under a d=
evice tree? I would have thought that the device model would define networki=
ng-instance as a 'type identityref=E2=80=99 which would form a base identity=
, and from which specific networking-instance types would be derived, such a=
s mpls - much like what the interfaces model does for all types of interface=
s. That will allow the device model to be a fairly compact model, leaving th=
e feature specific models to be developed elsewhere.
>=20
>=20
> The design team started with https://www.ietf.org/id/draft-openconfig-netm=
od-model-structure-00.txt and went through several iterations. The motivatio=
n excerpted from this draft is:=20
>=20
> 1.1.  Goals and approach
>=20
>    In this document, we describe a structure for organizing YANG
>    [RFC6020] models that is broadly applicable to physical and virtual
>    devices.  Individual models are composed such that the data they
>    define can be accessed in a predictable and operationally intuitive
>    way that is common across implementations.  This organization enables
>    several important capabilities:
>=20
>    o  a common schema to access data related to all aspects of a device
>=20
>    o  an extensible structure that makes it clear where additional
>       models or data should be fit (e.g., using YANG augmentation or
>       imports)
>=20
>    o  a place for including metadata that provides useful information
>       about the corresponding individual models, such as which
>       organization provides them, which vendors support them, or which
>       version of the model is deployed
>=20
>    o  a common infrastructure model layer on which higher layer service
>       models can be built, for example by specifying which models are
>       needed to provide the service
>=20
>    o  an ability to express an instance of the structure consisting of
>       models that have been validated to work together (i.e., with
>       information about sources of the models, their versions, etc.), so
>       that operators can easily identify a set of models that is known
>       to be mutually consistent
>=20
>    Our approach is to organize the models describing various aspects of
>    network infrastructure, including devices and their subsystems, and
>    relevant protocols operating at the link and network layers.  The
>    proposal does not consider a common model for higher level network
>    services, nor does it specify details of how hardware-related data
>    should be organized.  Both of these are challenging to standardize --
>    services are subject to operational and business considerations that
>    vary across network operators, and hardware models are necessarily
>    dependent on specific platform features and architecture -- and are
>    thus out of scope of this document.  We instead consider the set of
>    models that are commonly used by network operators, and suggest a
>    corresponding organization.
>=20
>    As with other models developed from an operator perspective, the
>    intent is not to be exhaustive by including all possible models in
>    the overall structure, whether currently available or not.  We focus
>    on components that are deemed most useful for network operators
>    across a variety of use cases.  We recognize, however, that
>    additional models will be needed in some cases, and this structure is
>    useful for describing how new models can be fit into the overall
>    structure.

--Apple-Mail-733199F4-97F0-4C50-BB83-87EEC2C2EACF
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<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charset=3D=
utf-8"></head><body dir=3D"auto"><div>Acee,</div><div><br></div><div>The boi=
ler plate goals and approach does not answer what I thought was a very speci=
fic question. Let me reiterate:</div><div><br></div><div>What was thought be=
hind defining a mpls feature in the devices model, vs say&nbsp;<span style=3D=
"background-color: rgba(255, 255, 255, 0);">defining networking-instance as a=
 'type identityref=E2=80=99 which would form a base identity, and from which=
 specific networking-instance types such as mpls would be derived?&nbsp;</sp=
an></div><div><br></div><div>The latter in my mind lays the framework for ho=
w models could augment the base devices model without defining each and ever=
y feature, while the former has to define at least a basic model for each fe=
ature which then would have to be augmented anyway to realize the full featu=
re.<br><br>Mahesh Jethanandani<div><a href=3D"mailto:mjethanandani@gmail.com=
">mjethanandani@gmail.com</a></div></div><div><br>On Jul 27, 2015, at 7:14 A=
M, Acee Lindem (acee) &lt;<a href=3D"mailto:acee@cisco.com">acee@cisco.com</=
a>&gt; wrote:<br><br></div><blockquote type=3D"cite"><span id=3D"OLK_SRC_BOD=
Y_SECTION" style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; f=
ont-size: 14px;"><blockquote id=3D"MAC_OUTLOOK_ATTRIBUTION_BLOCKQUOTE" style=
=3D"BORDER-LEFT: #b5c4df 5 solid; PADDING:0 0 0 5; MARGIN:0 0 0 5;"><div><di=
v style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-bre=
ak: after-white-space;" class=3D""><div class=3D"">Is the idea that the devi=
ce model is trying to define everything under a device tree? I would have th=
ought that the device model would define networking-instance as a 'type iden=
tityref=E2=80=99 which would form a base identity, and from which specific
 networking-instance types would be derived, such as mpls - much like what t=
he interfaces model does for all types of interfaces. That will allow the de=
vice model to be a fairly compact model, leaving the feature specific models=
 to be developed elsewhere.</div>
</div>
</div>
</blockquote>
</span>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-si=
ze: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-si=
ze: 14px;">
<br>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-si=
ze: 14px;">
The design team started with&nbsp;<a href=3D"https://www.ietf.org/id/draft-o=
penconfig-netmod-model-structure-00.txt">https://www.ietf.org/id/draft-openc=
onfig-netmod-model-structure-00.txt</a> and went through several iterations.=
 The motivation excerpted from this draft is:&nbsp;</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-si=
ze: 14px;">
<br>
</div>
<div>
<div><font face=3D"Calibri,sans-serif">1.1. &nbsp;Goals and approach</font><=
/div>
<div><font face=3D"Calibri,sans-serif"><br>
</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;In this document, we des=
cribe a structure for organizing YANG</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;[RFC6020] models that is=
 broadly applicable to physical and virtual</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;devices. &nbsp;Individua=
l models are composed such that the data they</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;define can be accessed i=
n a predictable and operationally intuitive</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;way that is common acros=
s implementations. &nbsp;This organization enables</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;several important capabi=
lities:</font></div>
<div><font face=3D"Calibri,sans-serif"><br>
</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;o &nbsp;a common schema t=
o access data related to all aspects of a device</font></div>
<div><font face=3D"Calibri,sans-serif"><br>
</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;o &nbsp;an extensible st=
ructure that makes it clear where additional</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp; &nbsp; models or data s=
hould be fit (e.g., using YANG augmentation or</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp; &nbsp; imports)</font><=
/div>
<div><font face=3D"Calibri,sans-serif"><br>
</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;o &nbsp;a place for incl=
uding metadata that provides useful information</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp; &nbsp; about the corres=
ponding individual models, such as which</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp; &nbsp; organization pro=
vides them, which vendors support them, or which</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp; &nbsp; version of the m=
odel is deployed</font></div>
<div><font face=3D"Calibri,sans-serif"><br>
</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;o &nbsp;a common infrast=
ructure model layer on which higher layer service</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp; &nbsp; models can be bu=
ilt, for example by specifying which models are</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp; &nbsp; needed to provid=
e the service</font></div>
<div><br>
</div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;o &nbsp;an ability to ex=
press an instance of the structure consisting of</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp; &nbsp; models that have=
 been validated to work together (i.e., with</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp; &nbsp; information abou=
t sources of the models, their versions, etc.), so</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp; &nbsp; that operators c=
an easily identify a set of models that is known</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp; &nbsp; to be mutually c=
onsistent</font></div>
<div><font face=3D"Calibri,sans-serif"><br>
</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;Our approach is to organ=
ize the models describing various aspects of</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;network infrastructure, i=
ncluding devices and their subsystems, and</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;relevant protocols opera=
ting at the link and network layers. &nbsp;The</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;proposal does not consid=
er a common model for higher level network</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;services, nor does it sp=
ecify details of how hardware-related data</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;should be organized. &nb=
sp;Both of these are challenging to standardize --</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;services are subject to o=
perational and business considerations that</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;vary across network oper=
ators, and hardware models are necessarily</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;dependent on specific pl=
atform features and architecture -- and are</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;thus out of scope of thi=
s document. &nbsp;We instead consider the set of</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;models that are commonly=
 used by network operators, and suggest a</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;corresponding organizati=
on.</font></div>
<div><font face=3D"Calibri,sans-serif"><br>
</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;As with other models dev=
eloped from an operator perspective, the</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;intent is not to be exha=
ustive by including all possible models in</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;the overall structure, w=
hether currently available or not. &nbsp;We focus</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;on components that are d=
eemed most useful for network operators</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;across a variety of use c=
ases. &nbsp;We recognize, however, that</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;additional models will b=
e needed in some cases, and this structure is</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;useful for describing ho=
w new models can be fit into the overall</font></div>
<div><font face=3D"Calibri,sans-serif">&nbsp; &nbsp;structure.</font></div>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Calibri, sans-serif; font-si=
ze: 14px;"></div></blockquote></body></html>=

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From: "Acee Lindem (acee)" <acee@cisco.com>
To: Mahesh Jethanandani <mjethanandani@gmail.com>
Thread-Topic: [Rtg-yang-coord] Routing YANG Design Team Scope
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From: Mahesh Jethanandani <mjethanandani@gmail.com>
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References: <D1DAB06D.298C6%acee@cisco.com> <20150726204927.GA17784@elstar.local> <B2F97D6D-C316-4176-83E3-E08E6F553E9D@gmail.com> <D1DBB3C4.2991F%acee@cisco.com> <022BA705-5EA2-4C4D-B012-EF2946F5F523@gmail.com> <6D8CFA7E-4E24-4FC2-BB69-31F4F436ACFC@cisco.com>
To: "Acee Lindem (acee)" <acee@cisco.com>
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Subject: Re: [Rtg-yang-coord] Routing YANG Design Team Scope
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Acee,

> On Jul 28, 2015, at 7:07 AM, Acee Lindem (acee) <acee@cisco.com> =
wrote:
>=20
> The networking-instance is used to instantiate separate layer-3 or =
layer-2 domains as opposed to protocol domains. For example, in many =
implementations, a networking-instance would correspond to a VRF or a =
Virtual Switch Instance (VSI). Hence, it would not make sense to define =
a separate networking-instance for MPLS since it is only one piece of a =
layer-3 domain.=20

Ok.

Similarly, could oam-protocols, control-plane-protocols, =
system-management, networking-services be identityrefs also? mpls could =
be part of tunneling-protocols that would include protocols such as gre.=20=


My concern with the model as it is structured, is its size. Not in terms =
of code size (because you are using groupings judiciously) but the =
ultimate size of the tree. I expect the device model to lay the =
framework for other models to augment the model. In addition, groupings =
cannot be augmented and if there is a new system-management definition =
tomorrow, the current structure does not allow for that to be added.

Mahesh Jethanandani
mjethanandani@gmail.com




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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html =
charset=3Dus-ascii"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" =
class=3D"">Acee,<div class=3D""><br class=3D""><div><blockquote =
type=3D"cite" class=3D""><div class=3D"">On Jul 28, 2015, at 7:07 AM, =
Acee Lindem (acee) &lt;<a href=3D"mailto:acee@cisco.com" =
class=3D"">acee@cisco.com</a>&gt; wrote:</div><br =
class=3D"Apple-interchange-newline"><div class=3D""><span =
style=3D"font-family: Helvetica; font-size: 12px; font-style: normal; =
font-variant: normal; font-weight: normal; letter-spacing: normal; =
line-height: normal; orphans: auto; text-align: start; text-indent: 0px; =
text-transform: none; white-space: normal; widows: auto; word-spacing: =
0px; -webkit-text-stroke-width: 0px; float: none; display: inline =
!important;" class=3D"">The networking-instance is used to instantiate =
separate layer-3 or layer-2 domains as opposed to protocol domains. For =
example, in many implementations, a networking-instance would correspond =
to a VRF or a Virtual Switch Instance (VSI). Hence, it would not make =
sense to define a separate networking-instance for MPLS since it is only =
one piece of a layer-3 domain.&nbsp;</span></div></blockquote><br =
class=3D""></div><div>Ok.</div><div><br class=3D""></div><div>Similarly, =
could oam-protocols, control-plane-protocols, system-management, =
networking-services be identityrefs also? mpls could be part of =
tunneling-protocols that would include protocols such as =
gre.&nbsp;</div><div><br class=3D""></div><div>My concern with the model =
as it is structured, is its size. Not in terms of code size (because you =
are using groupings judiciously) but the ultimate size of the tree. I =
expect the device model to lay the framework for other models to augment =
the model. In addition, groupings cannot be augmented and if there is a =
new system-management definition tomorrow, the current structure does =
not allow for that to be added.</div><br class=3D""><div =
apple-content-edited=3D"true" class=3D"">
<div class=3D"">Mahesh Jethanandani</div><div class=3D""><a =
href=3D"mailto:mjethanandani@gmail.com" =
class=3D"">mjethanandani@gmail.com</a></div><div class=3D""><br =
class=3D""></div><br class=3D"Apple-interchange-newline">

</div>
<br class=3D""></div></body></html>=

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--_000_02A437FC64AA489C831039F677CAF418ciscocom_--


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Subject: Re: [Rtg-yang-coord] Routing YANG Design Team Scope
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On 07/28/2015 02:29 PM, Acee Lindem (acee) wrote:
> However, the design team is
> certainly open to suggestions if you have a better representation. 

Going a step further, we'd love to hear more from you on this  --
although perhaps  we should do this off list (and on a call).  I'll send
mail...

Thanks,
Lou



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From: Juergen Schoenwaelder <j.schoenwaelder@jacobs-university.de>
To: Rob Shakir <rjs@rob.sh>
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Subject: Re: [Rtg-yang-coord] Routing YANG Design Team Scope
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I disagree that a routing design team can be in charge to do work
that fundamentally affects several standards-track RFCs that only
marginally are routing specific.

Yes, I agree a discussion needs to be held. Being old fashioned, I
believe the place to have this discussions that affects 'network
management going forward' is the OPS area.

/js

On Mon, Jul 27, 2015 at 11:38:57AM +0100, Rob Shakir wrote:
> My assumption, and understanding of the ask that the ADs put to the DT, is that the routing design team should consider usability of YANG models from a routing perspective, and not constrain itself on essentially arbitrary IETF-boundaries.
> 
> If the output of the DT means that we need cross-area review to further its work as any form of standard, or document that the IETF would choose to commit to RFC - then engagement with the relevant area should be sought, of course.
> 
> I am very much opposed to considering that point parts of a solution should be set as constraints on anything that can be done relating to network management going forward.
> 
> I have a feeling that this opinion may not be aligned with that of the netmod working group - it needs to be openly discussed as to what the best technical solution is, rather than calling foul on â€˜scopeâ€™ related discussions.
> 
> Thanks for your consideration,
> r.
> 
> 
> 
> 
> On 26 July 2015 at 20:50:41, Acee Lindem (acee) (acee@cisco.com) wrote:
> 
> Juergen,  
> 
> Since this E-mail thread is about the hierarchy and granularity of MPLS  
> models, Iâ€™m somewhat confused by your response. Nevertheless, Iâ€™ve updated  
> the subject line to correspond to your concern.  
> 
> Our assumption is that the Routing YANG design team will attempt to use  
> the existing models but will not be constrained by them. However, I agree  
> that any changes or augmentations to the existing NETMOD RFCs would need  
> to be reviewed in the NETMOD WG.  
> 
> Thanks,  
> Acee  
> 
> On 7/26/15, 3:24 PM, "Juergen Schoenwaelder"  
> <j.schoenwaelder@jacobs-university.de> wrote:  
> 
> >Dear Acee,  
> >  
> >please note that the interfaces model plus the IP model plus the core  
> >system model plus the SNMP configuration model the IETF agreed on are  
> >defined in RFC 7223, RFC 7277, RFC 7317, and RFC 7407. All these RFCs  
> >were produced by the NETMOD working group. Work is starting in other  
> >SDOs to extend these models. Hence, I think any attempts to replace  
> >them with something different should not only be discussed on the  
> >NETMOD list but also seek support from the NETMOD working group.  
> >  
> >Note that https://www.ietf.org/mailman/listinfo/rtg-yang-coord says:  
> >  
> > The rtg-yang-coord mailing list will provide a forum for  
> > coordination of the development of YANG models being worked on for  
> > Routing, in order to provide a consistent view to the NMS.  
> >  
> >It seems some of the content of draft-rtgyangdt-rtgwg-device-model-00  
> >seems to leave the routing scope.  
> >  
> >/js  
> >  
> >On Sun, Jul 26, 2015 at 06:48:10PM +0000, Acee Lindem (acee) wrote:  
> >> Hi Mahesh,  
> >>  
> >> Please comment on  
> >>https://datatracker.ietf.org/doc/draft-rtgyangdt-rtgwg-device-model/ as  
> >>this is the latest view of the design team.  
> >>  
> >> Thanks,  
> >> Acee  
> >>  
> >> From: Rtg-yang-coord  
> >><rtg-yang-coord-bounces@ietf.org<mailto:rtg-yang-coord-bounces@ietf.org>>  
> >> on behalf of Mahesh Jethanandani  
> >><mjethanandani@gmail.com<mailto:mjethanandani@gmail.com>>  
> >> Date: Sunday, July 26, 2015 at 4:31 PM  
> >> To: Lou Berger <lberger@labn.net<mailto:lberger@labn.net>>  
> >> Cc: Routing YANG  
> >><rtg-yang-coord@ietf.org<mailto:rtg-yang-coord@ietf.org>>, YANG Doctors  
> >><yang-doctors@ietf.org<mailto:yang-doctors@ietf.org>>, Loa Andersson  
> >><loa@pi.nu<mailto:loa@pi.nu>>  
> >> Subject: Re: [Rtg-yang-coord] yang models intended for the mpls wg  
> >>  
> >> Lou,  
> >>  
> >> I like the approach taken in the draft  
> >>draft-openconfig-mpls-consolidated-model. In particular, the approach  
> >>represented in this tree model makes sense to me.  
> >>  
> >>  
> >> +--rw mpls!  
> >> +--rw global  
> >> | ...  
> >> +--rw te-global-attributes  
> >> | ...  
> >> +--rw signaling-protocols  
> >> | ...  
> >> +--rw lsps  
> >> ...  
> >>  
> >>  
> >> However, by its own admission, the draft says:  
> >>  
> >>  
> >> This model does not aim to be feature complete (i.e., cover all  
> >> possible aspects or features of MPLS).  
> >>  
> >> My suggestion would be for the MPLS WG to take up the model structure  
> >>as represented above and to do a more complete work of including all  
> >>features of MPLS, e.g. GMPLS.  
> >>  
> >> Thanks.  
> >>  
> >> Mahesh Jethanandani  
> >> mjethanandani@gmail.com<mailto:mjethanandani@gmail.com>  
> >>  
> >>  
> >>  
> >>  
> >>  
> >  
> >> _______________________________________________  
> >> Rtg-yang-coord mailing list  
> >> Rtg-yang-coord@ietf.org  
> >> https://www.ietf.org/mailman/listinfo/rtg-yang-coord  
> >  
> >  
> >--  
> >Juergen Schoenwaelder Jacobs University Bremen gGmbH  
> >Phone: +49 421 200 3587 Campus Ring 1 | 28759 Bremen | Germany  
> >Fax: +49 421 200 3103 <http://www.jacobs-university.de/>  
> 
> _______________________________________________
> Rtg-yang-coord mailing list
> Rtg-yang-coord@ietf.org
> https://www.ietf.org/mailman/listinfo/rtg-yang-coord

> _______________________________________________
> Rtg-yang-coord mailing list
> Rtg-yang-coord@ietf.org
> https://www.ietf.org/mailman/listinfo/rtg-yang-coord


-- 
Juergen Schoenwaelder           Jacobs University Bremen gGmbH
Phone: +49 421 200 3587         Campus Ring 1 | 28759 Bremen | Germany
Fax:   +49 421 200 3103         <http://www.jacobs-university.de/>


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From: Juergen Schoenwaelder <j.schoenwaelder@jacobs-university.de>
To: Nadeau Thomas <tnadeau@lucidvision.com>
Message-ID: <20150730093112.GD16332@elstar.local>
Mail-Followup-To: Nadeau Thomas <tnadeau@lucidvision.com>, Rob Shakir <rjs@rob.sh>, "rtg-yang-coord@ietf.org" <rtg-yang-coord@ietf.org>, Mahesh Jethanandani <mjethanandani@gmail.com>, YANG Doctors <yang-doctors@ietf.org>, Berger Lou <lberger@labn.net>, "Acee Lindem (acee)" <acee@cisco.com>, Loa Andersson <loa@pi.nu>
References: <D1DAB06D.298C6%acee@cisco.com> <etPan.55b60a41.3b25a484.755b@piccolo.local> <FD8CBA1C-AF7D-47EE-A469-A6361EF00D8F@lucidvision.com>
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Subject: Re: [Rtg-yang-coord] Routing YANG Design Team Scope
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On Mon, Jul 27, 2015 at 06:06:49AM -0700, Nadeau Thomas wrote:
> 
> 	Speaking as NETMOD co-chair:
> 
> 	This is precisely why we are doing this effort and the others in the way that we are - across areas, with a wide enough group of people involved to hopefully cover the real requirements not just say server implementations, or client implementations - we want to cover those and operators who would using them.  So if one of the outputs of a DT is to conclude that the existing standard models are insufficient, then we will work to revise them.  The DTs should strive to recycle what is there as much as possible, but if in the end it is insufficient there is no other option.  So in summary: The DT should not believe that it is constrained to using only existing models as-is,
>

Tom,

the value of standards is their stability and that we do not change
them every other day. In other words, someone proposing to redo a
standard must have very strong arguments that the current one is
fundamentally flawed and unusable. And these arguments should in my
view be brought to the place where the affected standards were
created.

If the routing area starts to work on the premise that published IETF
standards will be redone based on some ideas originating from a DT but
without agreement of the people who were involved in creating and
implementing the standard, then I think we have a problem.

/js

-- 
Juergen Schoenwaelder           Jacobs University Bremen gGmbH
Phone: +49 421 200 3587         Campus Ring 1 | 28759 Bremen | Germany
Fax:   +49 421 200 3103         <http://www.jacobs-university.de/>


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To: Nadeau Thomas <tnadeau@lucidvision.com>, Rob Shakir <rjs@rob.sh>,  "rtg-yang-coord@ietf.org" <rtg-yang-coord@ietf.org>, Mahesh Jethanandani <mjethanandani@gmail.com>,  YANG Doctors <yang-doctors@ietf.org>, "Acee Lindem (acee)" <acee@cisco.com>, Loa Andersson <loa@pi.nu>
References: <D1DAB06D.298C6%acee@cisco.com> <etPan.55b60a41.3b25a484.755b@piccolo.local> <FD8CBA1C-AF7D-47EE-A469-A6361EF00D8F@lucidvision.com> <20150730093112.GD16332@elstar.local>
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Subject: Re: [Rtg-yang-coord] Routing YANG Design Team Scope
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Juergen,

On 07/30/2015 05:31 AM, Juergen Schoenwaelder wrote:
...
> If the routing area starts to work on the premise that published IETF
> standards will be redone based on some ideas originating from a DT but
> without agreement

Per my previous message.  We, the DT members, understand that from a
process perspective [1] that what we produce is no different than any
other individual contribution/position/draft put forward.  And that
agreement is subject to normal IETF process.

> of the people who were involved in creating and
> implementing the standard, then I think we have a problem.

>From our perspective, we too are people implementing the standard, and
doing so from both the user and vendor sides.

Also ownership of RFCs and WG drafts belongs to the IETF, not to
specific people, and modifications follow the process.

Lou

> 
> /js
> 

[1] https://www.ietf.org/iesg/statement/design-team.html


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Subject: Re: [Rtg-yang-coord] Routing YANG Design Team Scope
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Juergen,

On 07/30/2015 05:18 AM, Juergen Schoenwaelder wrote:
> I disagree that a routing design team can be in charge to do work
> that fundamentally affects several standards-track RFCs that only
> marginally are routing specific.

I'll defer to the folks that put the DT together to talk to their
motivation.  Of course their desired scope/outcome is documented on the
DT wiki [1].

That said, I think we, the DT, understand the process here and that what
we produce is simply input to the normal IETF process [2].  We're not
"in charge", we are trying to be "agile" and "solve a particular"
problem for users of YANG and YANG model writers for protocols and
mechanisms defined in the routing area.  Certainly our perspective is
different than some, and focused on a certain class of users and authors.

> 
> Yes, I agree a discussion needs to be held. 

Excellent.  And we agree that our work has implication beyond routing
area YANG model users and writers -- and these implications must, as Rob
said, be discussed in the appropriate area/WG.  We've already identified
two such pretty fundamental requirements that we're planning to continue
discussing with folks/WGs in the OPS area.  (i.e., the topics that were
discussed in the netmod interims.)

> Being old fashioned, I
> believe the place to have this discussions that affects 'network
> management going forward' is the OPS area.
> 

So this can be read to mean that you are saying that all YANG model
definitions and discussions, as they "affect network management", should
take place in the OPS area.  Is this a correct interpretation?  If so,
this isn't a particular scalable approach and doesn't reflect how the
IETF has done things in the past.  If you are saying that changes to
YANG, netconf, restconf, ..., must be discussed in the OPS area, then I
completely agree.

Lou

[1] http://wiki.tools.ietf.org/area/rtg/trac/wiki/RtgYangArchDT
[2] https://www.ietf.org/iesg/statement/design-team.html


> /js
> 
> On Mon, Jul 27, 2015 at 11:38:57AM +0100, Rob Shakir wrote:
>> My assumption, and understanding of the ask that the ADs put to the DT, is that the routing design team should consider usability of YANG models from a routing perspective, and not constrain itself on essentially arbitrary IETF-boundaries.
>>
>> If the output of the DT means that we need cross-area review to further its work as any form of standard, or document that the IETF would choose to commit to RFC - then engagement with the relevant area should be sought, of course.
>>
>> I am very much opposed to considering that point parts of a solution should be set as constraints on anything that can be done relating to network management going forward.
>>
>> I have a feeling that this opinion may not be aligned with that of the netmod working group - it needs to be openly discussed as to what the best technical solution is, rather than calling foul on â€˜scopeâ€™ related discussions.
>>
>> Thanks for your consideration,
>> r.
>>
>>
>>
>>
>> On 26 July 2015 at 20:50:41, Acee Lindem (acee) (acee@cisco.com) wrote:
>>
>> Juergen,  
>>
>> Since this E-mail thread is about the hierarchy and granularity of MPLS  
>> models, Iâ€™m somewhat confused by your response. Nevertheless, Iâ€™ve updated  
>> the subject line to correspond to your concern.  
>>
>> Our assumption is that the Routing YANG design team will attempt to use  
>> the existing models but will not be constrained by them. However, I agree  
>> that any changes or augmentations to the existing NETMOD RFCs would need  
>> to be reviewed in the NETMOD WG.  
>>
>> Thanks,  
>> Acee  
>>
>> On 7/26/15, 3:24 PM, "Juergen Schoenwaelder"  
>> <j.schoenwaelder@jacobs-university.de> wrote:  
>>
>>> Dear Acee,  
>>>  
>>> please note that the interfaces model plus the IP model plus the core  
>>> system model plus the SNMP configuration model the IETF agreed on are  
>>> defined in RFC 7223, RFC 7277, RFC 7317, and RFC 7407. All these RFCs  
>>> were produced by the NETMOD working group. Work is starting in other  
>>> SDOs to extend these models. Hence, I think any attempts to replace  
>>> them with something different should not only be discussed on the  
>>> NETMOD list but also seek support from the NETMOD working group.  
>>>  
>>> Note that https://www.ietf.org/mailman/listinfo/rtg-yang-coord says:  
>>>  
>>> The rtg-yang-coord mailing list will provide a forum for  
>>> coordination of the development of YANG models being worked on for  
>>> Routing, in order to provide a consistent view to the NMS.  
>>>  
>>> It seems some of the content of draft-rtgyangdt-rtgwg-device-model-00  
>>> seems to leave the routing scope.  
>>>  
>>> /js  
>>>  
>>> On Sun, Jul 26, 2015 at 06:48:10PM +0000, Acee Lindem (acee) wrote:  
>>>> Hi Mahesh,  
>>>>  
>>>> Please comment on  
>>>> https://datatracker.ietf.org/doc/draft-rtgyangdt-rtgwg-device-model/ as  
>>>> this is the latest view of the design team.  
>>>>  
>>>> Thanks,  
>>>> Acee  
>>>>  
>>>> From: Rtg-yang-coord  
>>>> <rtg-yang-coord-bounces@ietf.org<mailto:rtg-yang-coord-bounces@ietf.org>>  
>>>> on behalf of Mahesh Jethanandani  
>>>> <mjethanandani@gmail.com<mailto:mjethanandani@gmail.com>>  
>>>> Date: Sunday, July 26, 2015 at 4:31 PM  
>>>> To: Lou Berger <lberger@labn.net<mailto:lberger@labn.net>>  
>>>> Cc: Routing YANG  
>>>> <rtg-yang-coord@ietf.org<mailto:rtg-yang-coord@ietf.org>>, YANG Doctors  
>>>> <yang-doctors@ietf.org<mailto:yang-doctors@ietf.org>>, Loa Andersson  
>>>> <loa@pi.nu<mailto:loa@pi.nu>>  
>>>> Subject: Re: [Rtg-yang-coord] yang models intended for the mpls wg  
>>>>  
>>>> Lou,  
>>>>  
>>>> I like the approach taken in the draft  
>>>> draft-openconfig-mpls-consolidated-model. In particular, the approach  
>>>> represented in this tree model makes sense to me.  
>>>>  
>>>>  
>>>> +--rw mpls!  
>>>> +--rw global  
>>>> | ...  
>>>> +--rw te-global-attributes  
>>>> | ...  
>>>> +--rw signaling-protocols  
>>>> | ...  
>>>> +--rw lsps  
>>>> ...  
>>>>  
>>>>  
>>>> However, by its own admission, the draft says:  
>>>>  
>>>>  
>>>> This model does not aim to be feature complete (i.e., cover all  
>>>> possible aspects or features of MPLS).  
>>>>  
>>>> My suggestion would be for the MPLS WG to take up the model structure  
>>>> as represented above and to do a more complete work of including all  
>>>> features of MPLS, e.g. GMPLS.  
>>>>  
>>>> Thanks.  
>>>>  
>>>> Mahesh Jethanandani  
>>>> mjethanandani@gmail.com<mailto:mjethanandani@gmail.com>  
>>>>  
>>>>  
>>>>  
>>>>  
>>>>  
>>>  
>>>> _______________________________________________  
>>>> Rtg-yang-coord mailing list  
>>>> Rtg-yang-coord@ietf.org  
>>>> https://www.ietf.org/mailman/listinfo/rtg-yang-coord  
>>>  
>>>  
>>> --  
>>> Juergen Schoenwaelder Jacobs University Bremen gGmbH  
>>> Phone: +49 421 200 3587 Campus Ring 1 | 28759 Bremen | Germany  
>>> Fax: +49 421 200 3103 <http://www.jacobs-university.de/>  
>>
>> _______________________________________________
>> Rtg-yang-coord mailing list
>> Rtg-yang-coord@ietf.org
>> https://www.ietf.org/mailman/listinfo/rtg-yang-coord
> 
>> _______________________________________________
>> Rtg-yang-coord mailing list
>> Rtg-yang-coord@ietf.org
>> https://www.ietf.org/mailman/listinfo/rtg-yang-coord
> 
> 


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From: Juergen Schoenwaelder <j.schoenwaelder@jacobs-university.de>
To: Lou Berger <lberger@labn.net>
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References: <D1DAB06D.298C6%acee@cisco.com> <etPan.55b60a41.3b25a484.755b@piccolo.local> <20150730091828.GC16332@elstar.local> <55BA0B16.3000400@labn.net>
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Subject: Re: [Rtg-yang-coord] Routing YANG Design Team Scope
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On Thu, Jul 30, 2015 at 07:31:34AM -0400, Lou Berger wrote:
> 
> > Being old fashioned, I
> > believe the place to have this discussions that affects 'network
> > management going forward' is the OPS area.
> 
> So this can be read to mean that you are saying that all YANG model
> definitions and discussions, as they "affect network management", should
> take place in the OPS area.  Is this a correct interpretation?

No.

> If so, this isn't a particular scalable approach and doesn't reflect how the
> IETF has done things in the past.  If you are saying that changes to
> YANG, netconf, restconf, ..., must be discussed in the OPS area, then I
> completely agree.

I am saying that if RFCs are affected that were done in the OPS area,
then I think it is good idea to explain to the OPS area why they are
not good enough. Except in special cases, I also think that WGs that
produced an RFC ars the default place to discuss shortcomings of an
RFC. This is perhaps formally not required since everything belongs to
the IETF but still I believe this is a good approach to avoid flapping
(trying to use routing vocabular here, I might fail badly with it).

/js

-- 
Juergen Schoenwaelder           Jacobs University Bremen gGmbH
Phone: +49 421 200 3587         Campus Ring 1 | 28759 Bremen | Germany
Fax:   +49 421 200 3103         <http://www.jacobs-university.de/>


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To: Nadeau Thomas <tnadeau@lucidvision.com>, Rob Shakir <rjs@rob.sh>, "rtg-yang-coord@ietf.org" <rtg-yang-coord@ietf.org>, Mahesh Jethanandani <mjethanandani@gmail.com>, YANG Doctors <yang-doctors@ietf.org>, Berger Lou <lberger@labn.net>, "Acee Lindem (acee)" <acee@cisco.com>, Loa Andersson <loa@pi.nu>
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From: Benoit Claise <bclaise@cisco.com>
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On 30/07/2015 11:31, Juergen Schoenwaelder wrote:
> On Mon, Jul 27, 2015 at 06:06:49AM -0700, Nadeau Thomas wrote:
>> 	Speaking as NETMOD co-chair:
>>
>> 	This is precisely why we are doing this effort and the others in the way that we are - across areas, with a wide enough group of people involved to hopefully cover the real requirements not just say server implementations, or client implementations - we want to cover those and operators who would using them.  So if one of the outputs of a DT is to conclude that the existing standard models are insufficient, then we will work to revise them.  The DTs should strive to recycle what is there as much as possible, but if in the end it is insufficient there is no other option.  So in summary: The DT should not believe that it is constrained to using only existing models as-is,
>>
> Tom,
>
> the value of standards is their stability and that we do not change
> them every other day. In other words, someone proposing to redo a
> standard must have very strong arguments that the current one is
> fundamentally flawed and unusable. And these arguments should in my
> view be brought to the place where the affected standards were
> created.
>
> If the routing area starts to work on the premise that published IETF
> standards will be redone based on some ideas originating from a DT but
> without agreement of the people who were involved in creating and
> implementing the standard, then I think we have a problem.
This is the reason why we organized a NETMOD interim meeting on the YANG 
model structure in June (and another one on the oper status btw).
Unfortunately, some key openconfig people were not in Prague to discuss 
further. Another NETMOD interim is the way to go. Currently in 
discussion with the NETMOD chairs.

Regards, Benoit
>
> /js
>


From nobody Thu Jul 30 06:33:13 2015
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Subject: Re: [Rtg-yang-coord] [yang-doctors] Routing YANG Design Team Scope
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On 07/30/2015 09:28 AM, Benoit Claise wrote:
> Unfortunately, some key openconfig people were not in Prague to discuss
> further. Another NETMOD interim is the way to go. Currently in
> discussion with the NETMOD chairs.

Agreed & Thanks!

Lou


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Subject: Re: [Rtg-yang-coord] Routing YANG Design Team Scope
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Juergen,

On 07/30/2015 08:44 AM, Juergen Schoenwaelder wrote:
> On Thu, Jul 30, 2015 at 07:31:34AM -0400, Lou Berger wrote:
>>
>>> Being old fashioned, I
>>> believe the place to have this discussions that affects 'network
>>> management going forward' is the OPS area.
>>
>> So this can be read to mean that you are saying that all YANG model
>> definitions and discussions, as they "affect network management", should
>> take place in the OPS area.  Is this a correct interpretation?
> 
> No.

Great.

> 
>> If so, this isn't a particular scalable approach and doesn't reflect how the
>> IETF has done things in the past.  If you are saying that changes to
>> YANG, netconf, restconf, ..., must be discussed in the OPS area, then I
>> completely agree.
> 
> I am saying that if RFCs are affected that were done in the OPS area,
> then I think it is good idea to explain to the OPS area why they are
> not good enough. Except in special cases, I also think that WGs that
> produced an RFC ars the default place to discuss shortcomings of an
> RFC. 

100% agree.

> This is perhaps formally not required since everything belongs to
> the IETF but still I believe this is a good approach to avoid flapping
> (trying to use routing vocabular here, I might fail badly with it).

WFM.  I appreciate the effort to try to understand our (user and vendor)
perspective(s) as it clearly is different than what has been the focus
to date -- to me this is a symptom of the growing pains related to
successful use/adoption of a new technology.

Lou
> 
> /js
> 


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Subject: Re: [Rtg-yang-coord] Routing YANG Design Team Scope
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--001a11c27cf0b4e8b4051c19b450
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Hi,

Is there a design team report published yet?
I agree with Juergen that existing YANG data
such as /interfaces, system, netconf-state MUST NOT
be moved to a different place in the data tree.

You should restrict your activities to new routing modules.


Andy


On Tue, Jul 28, 2015 at 12:16 PM, Lou Berger <lberger@labn.net> wrote:

> On 07/28/2015 02:29 PM, Acee Lindem (acee) wrote:
> > However, the design team is
> > certainly open to suggestions if you have a better representation.
>
> Going a step further, we'd love to hear more from you on this  --
> although perhaps  we should do this off list (and on a call).  I'll send
> mail...
>
> Thanks,
> Lou
>
>
> _______________________________________________
> Rtg-yang-coord mailing list
> Rtg-yang-coord@ietf.org
> https://www.ietf.org/mailman/listinfo/rtg-yang-coord
>

--001a11c27cf0b4e8b4051c19b450
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<div dir=3D"ltr">Hi,<div><br></div><div>Is there a design team report publi=
shed yet?</div><div>I agree with Juergen that existing YANG data</div><div>=
such as /interfaces, system, netconf-state MUST NOT</div><div>be moved to a=
 different place in the data tree.</div><div><br></div><div>You should rest=
rict your activities to new routing modules.</div><div><br></div><div><br><=
/div><div>Andy</div><div><br><div class=3D"gmail_extra"><br><div class=3D"g=
mail_quote">On Tue, Jul 28, 2015 at 12:16 PM, Lou Berger <span dir=3D"ltr">=
&lt;<a href=3D"mailto:lberger@labn.net" target=3D"_blank">lberger@labn.net<=
/a>&gt;</span> wrote:<br><blockquote class=3D"gmail_quote" style=3D"margin:=
0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">On 07/28/2015 02:29=
 PM, Acee Lindem (acee) wrote:<br>
&gt; However, the design team is<br>
&gt; certainly open to suggestions if you have a better representation.<br>
<br>
Going a step further, we&#39;d love to hear more from you on this=C2=A0 --<=
br>
although perhaps=C2=A0 we should do this off list (and on a call).=C2=A0 I&=
#39;ll send<br>
mail...<br>
<br>
Thanks,<br>
Lou<br>
<br>
<br>
_______________________________________________<br>
Rtg-yang-coord mailing list<br>
<a href=3D"mailto:Rtg-yang-coord@ietf.org">Rtg-yang-coord@ietf.org</a><br>
<a href=3D"https://www.ietf.org/mailman/listinfo/rtg-yang-coord" rel=3D"nor=
eferrer" target=3D"_blank">https://www.ietf.org/mailman/listinfo/rtg-yang-c=
oord</a><br>
</blockquote></div><br></div></div></div>

--001a11c27cf0b4e8b4051c19b450--


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	We are planning one for the second week of September, but I have =
not booked it yet. I will do so early next week.=20

	=97Tom


> On Jul 30, 2015:6:32 AM, at 6:32 AM, Lou Berger <lberger@labn.net> =
wrote:
>=20
> On 07/30/2015 09:28 AM, Benoit Claise wrote:
>> Unfortunately, some key openconfig people were not in Prague to =
discuss
>> further. Another NETMOD interim is the way to go. Currently in
>> discussion with the NETMOD chairs.
>=20
> Agreed & Thanks!
>=20
> Lou
>=20


From nobody Thu Jul 30 13:42:47 2015
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Date: Thu, 30 Jul 2015 16:42:17 -0400
From: Lou Berger <lberger@labn.net>
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To: Andy Bierman <andy@yumaworks.com>
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Cc: "rtg-yang-coord@ietf.org" <Rtg-yang-coord@ietf.org>, Juergen Schoenwaelder <j.schoenwaelder@jacobs-university.de>, Mahesh Jethanandani <mjethanandani@gmail.com>, YANG Doctors <yang-doctors@ietf.org>, "Acee Lindem \(acee\)" <acee@cisco.com>, Loa Andersson <loa@pi.nu>
Subject: Re: [Rtg-yang-coord] Routing YANG Design Team Scope
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Hi Andy,


On 07/30/2015 11:53 AM, Andy Bierman wrote:
> Hi,
> 
> Is there a design team report published yet?

The work is still underway.
see https://www.ietf.org/proceedings/93/slides/slides-93-rtgwg-3.pdf
and draft-rtgyangdt-rtgwg-device-model-00.txt


> I agree with Juergen that existing YANG data
> such as /interfaces, system, netconf-state MUST NOT
> be moved to a different place in the data tree.
> 

This is part of the discussion that was and will be subject to the
Netmod interims.  We'd like to find a solution to our use case /
requirements that coexists with existing models/RFCs.

> You should restrict your activities to new routing modules.

The objective is to reuse and augment what's there to the maximum extent
possible and to work with the groups that own the respective mechanisms
when we hit limitations/restrictions to come up with a consensus-based
solution.

Lou

> 
> 
> Andy
> 
> 
> On Tue, Jul 28, 2015 at 12:16 PM, Lou Berger <lberger@labn.net
> <mailto:lberger@labn.net>> wrote:
> 
>     On 07/28/2015 02:29 PM, Acee Lindem (acee) wrote:
>     > However, the design team is
>     > certainly open to suggestions if you have a better representation.
> 
>     Going a step further, we'd love to hear more from you on this  --
>     although perhaps  we should do this off list (and on a call).  I'll send
>     mail...
> 
>     Thanks,
>     Lou
> 
> 
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> 
> 
> 
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