Re: [mpls] [Teas] Generic LSP Yang
Lou Berger <lberger@labn.net> Fri, 06 March 2015 14:05 UTC
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Date: Fri, 06 Mar 2015 09:05:09 -0500
From: Lou Berger <lberger@labn.net>
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To: Dhruv Dhody <dhruv.dhody@huawei.com>, Dhruv Dhody <dhruv.ietf@gmail.com>, "mpls@ietf.org" <mpls@ietf.org>
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Cc: "Rtg-yang-coord@ietf.org" <Rtg-yang-coord@ietf.org>, "Zhangxian (Xian)" <zhang.xian@huawei.com>, TEAS WG <teas@ietf.org>
Subject: Re: [mpls] [Teas] Generic LSP Yang
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Dhruv, On 03/06/2015 07:00 AM, Dhruv Dhody wrote: > Hi Lou, > >> -----Original Message----- >> From: Teas [mailto:teas-bounces@ietf.org] On Behalf Of Lou Berger >> Sent: 05 March 2015 22:48 >> To: Dhruv Dhody; mpls@ietf.org >> Cc: Rtg-yang-coord@ietf.org; Zhangxian (Xian); TEAS WG >> Subject: Re: [Teas] [mpls] Generic LSP Yang >> >> Hi Dhruv, >> Good stuff! There's already some related work going on based on the TE >> LSP drafts/work started in MPLS and now in the TEAS WG. -- This was >> mentioned at the TEAS interim too, see >> http://www.ietf.org/proceedings/interim/2014/12/18/teas/minutes/minutes- >> interim-2014-teas-1 >> >> It looks like you don't completely overlap as you are also considering non-TE >> LSPs. > > [Dhruv]: Yes, our aim is to go one level up and see if we can have a > generic LSP yang model including TE and non-TE, as well any signaling > protocol or lack thereof (static, SR). > Understood. BTW non-signaled TE is still part of TE architecture and the yang model work underway in TEAS. (TP, and to some degree PCE really made this point clear.) >> >> So I guess a basic question to answer is what is the relationship of the >> models of TE and non-TE LSPs. e.g, >> - a generic LSP model with parallel TE and non-TE sub models >> - a generic LSP model with protocol specific models >> - a generic LSP model with some mix of the above (which I think you are >> proposing) >> - no generic LSP model, and separate TE and non-TE sub models >> - etc > > [Dhruv]: Our aim is to explore and see if we have attributes common > to all LSP irrespective of TE/non-TE; signaling protocol, Segment > Routing and even PCEP to warrant such a generic LSP model. > Sure. PCE driven TE LSPs are in scope of the generic TE YANG models being developed. PCEP protocol specifics belong to PCE. > A possible overall relationship with the model is in the draft - > +---------------+ > | Generic LSPDB | > | ietf-lspdb | > +-------^-------+ > | > --------------------------------------------- > | | | | > | | | | > +----+----+ +-------+-------+ +----+----+ +--+--+ > | LDP-LSP | | BGP-LSP | | TE-LSP | | SR | > | | | | | | | | > +---------+ +---------------+ +----^----+ +--^--+ > | | > ----------- > | | > | | > +----+----+ +--+--+ > | RSVP-TE | | SR- | > | | | TE | > +----^----+ +--^--+ > | | > | | > ----------- > | > +----+----+ > | PCEP | > | | > +---------+ > > >> >> It's not clear to me how much value a generic model brings, but details >> always help to clarify the situation. >> >> My preference would be to have more details on the non-TE models (to compare >> against the TE model) before deciding on the need for / value of a generic >> LSP model. > > [Dhruv]: Yes, I think that would surely help. Glad to hear we're in agreement. > IMHO the ease of augmentation and having a generic base model is one > of the key advantages of YANG, so we hope its a worthwhile exercise > to explore the need for such a generic model instead of separate TE > and non-TE models. > The details of each will certainly demonstrate the degree of overlap. Thanks, Lou > Regards, > Dhruv > >> >> Lou >> >> On 3/5/2015 11:48 AM, Dhruv Dhody wrote: >>> Hi, >>> >>> Xian and I have created generic base yang model for LSPs. This model >>> is expected to be augmented by seperate data model with specific >>> signalling protocol and technology. >>> >>> See https://tools.ietf.org/html/draft-zhang-mpls-lspdb-yang-00 >>> >>> Comments / Suggestions ? >>> >>> We need to work out the relationship with the rest of MPLS yang model >>> which can be hashed out in Dallas. >>> >>> Regards, >>> Dhruv / Xian >>> >>> Excuse the obvious nit with the LSP abbreviation expansion :P >>> >>> _______________________________________________ >>> mpls mailing list >>> mpls@ietf.org >>> https://www.ietf.org/mailman/listinfo/mpls >>> >> >> >> >> _______________________________________________ >> Teas mailing list >> Teas@ietf.org >> https://www.ietf.org/mailman/listinfo/teas >
- [mpls] Generic LSP Yang Dhruv Dhody
- Re: [mpls] Generic LSP Yang Lou Berger
- Re: [mpls] Generic LSP Yang Lou Berger
- Re: [mpls] [Teas] Generic LSP Yang Dhruv Dhody
- Re: [mpls] [Teas] Generic LSP Yang Susan Hares
- Re: [mpls] [Teas] Generic LSP Yang Igor Bryskin
- Re: [mpls] [Teas] Generic LSP Yang Lou Berger
- Re: [mpls] [Teas] Generic LSP Yang Robert Raszuk
- Re: [mpls] [Rtg-yang-coord] [Teas] Generic LSP Ya… Loa Andersson
- Re: [mpls] [Rtg-yang-coord] [Teas] Generic LSP Ya… Shah, Himanshu
- Re: [mpls] [Teas] [Rtg-yang-coord] Generic LSP Ya… Loa Andersson
- Re: [mpls] [Teas] [Rtg-yang-coord] Generic LSP Ya… Robert Raszuk
- Re: [mpls] [Teas] [Rtg-yang-coord] Generic LSP Ya… Igor Bryskin
- Re: [mpls] [Teas] [Rtg-yang-coord] Generic LSP Ya… Lou Berger
- Re: [mpls] [Teas] [Rtg-yang-coord] Generic LSP Ya… Loa Andersson
- Re: [mpls] [Teas] [Rtg-yang-coord] Generic LSP Ya… Robert Raszuk
- Re: [mpls] [Teas] [Rtg-yang-coord] Generic LSP Ya… Loa Andersson
- Re: [mpls] [Teas] [Rtg-yang-coord] Generic LSP Ya… Robert Raszuk
- Re: [mpls] [Teas] [Rtg-yang-coord] Generic LSP Ya… Igor Bryskin
- Re: [mpls] [Teas] [Rtg-yang-coord] Generic LSP Ya… Igor Bryskin
- Re: [mpls] [Teas] [Rtg-yang-coord] Generic LSP Ya… Loa Andersson
- Re: [mpls] [Teas] [Rtg-yang-coord] Generic LSP Ya… Lou Berger
- Re: [mpls] [Teas] [Rtg-yang-coord] Generic LSP Ya… Lou Berger
- Re: [mpls] [Teas] [Rtg-yang-coord] Generic LSP Ya… Gregory Mirsky
- Re: [mpls] [Teas] [Rtg-yang-coord] Generic LSP Ya… Robert Raszuk
- Re: [mpls] [Teas] [Rtg-yang-coord] Generic LSP Ya… Gregory Mirsky
- Re: [mpls] [Teas] [Rtg-yang-coord] Generic LSP Ya… Gregory Mirsky
- Re: [mpls] [Teas] [Rtg-yang-coord] Generic LSP Ya… Robert Raszuk
- Re: [mpls] [Teas] [Rtg-yang-coord] Generic LSP Ya… Robert Raszuk
- Re: [mpls] [Teas] [Rtg-yang-coord] Generic LSP Ya… Gregory Mirsky
- Re: [mpls] [Teas] [Rtg-yang-coord] Generic LSP Ya… Robert Raszuk
- Re: [mpls] [Teas] [Rtg-yang-coord] Generic LSP Ya… t.petch
- Re: [mpls] [Teas] [Rtg-yang-coord] Generic LSP Ya… Zhangxian (Xian)