Re: [Teas] [mpls] Generic LSP Yang
Igor Bryskin <IBryskin@advaoptical.com> Fri, 06 March 2015 13:11 UTC
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From: Igor Bryskin <IBryskin@advaoptical.com>
To: Dhruv Dhody <dhruv.dhody@huawei.com>, 'Lou Berger' <lberger@labn.net>, Dhruv Dhody <dhruv.ietf@gmail.com>, "mpls@ietf.org" <mpls@ietf.org>
Thread-Topic: [mpls] [Teas] Generic LSP Yang
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Date: Fri, 06 Mar 2015 13:11:28 +0000
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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: [Teas] [mpls] Generic LSP Yang
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Druv, IMHO TE-LSP, LDP-LSP and SPRING-LSP have nothing in common. They should have totally independent models each being developed in respective WG. Igor -----Original Message----- From: mpls [mailto:mpls-bounces@ietf.org] On Behalf Of Dhruv Dhody Sent: Friday, March 06, 2015 7:00 AM To: 'Lou Berger'; Dhruv Dhody; mpls@ietf.org Cc: Rtg-yang-coord@ietf.org; Zhangxian (Xian); TEAS WG Subject: Re: [mpls] [Teas] Generic LSP Yang 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/minute > s- > 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). > > 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. 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. 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. 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 mailing list mpls@ietf.org https://www.ietf.org/mailman/listinfo/mpls
- Re: [Teas] [mpls] Generic LSP Yang Lou Berger
- Re: [Teas] [mpls] Generic LSP Yang Lou Berger
- Re: [Teas] [mpls] Generic LSP Yang Dhruv Dhody
- Re: [Teas] [mpls] Generic LSP Yang Susan Hares
- Re: [Teas] [mpls] Generic LSP Yang Lou Berger
- Re: [Teas] [mpls] Generic LSP Yang Igor Bryskin
- Re: [Teas] [mpls] Generic LSP Yang Robert Raszuk
- Re: [Teas] [Rtg-yang-coord] [mpls] Generic LSP Ya… Loa Andersson
- Re: [Teas] [mpls] [Rtg-yang-coord] Generic LSP Ya… Shah, Himanshu
- Re: [Teas] [mpls] [Rtg-yang-coord] Generic LSP Ya… Loa Andersson
- Re: [Teas] [mpls] [Rtg-yang-coord] Generic LSP Ya… Robert Raszuk
- Re: [Teas] [mpls] [Rtg-yang-coord] Generic LSP Ya… Igor Bryskin
- Re: [Teas] [mpls] [Rtg-yang-coord] Generic LSP Ya… Lou Berger
- Re: [Teas] [mpls] [Rtg-yang-coord] Generic LSP Ya… Loa Andersson
- Re: [Teas] [mpls] [Rtg-yang-coord] Generic LSP Ya… Robert Raszuk
- Re: [Teas] [mpls] [Rtg-yang-coord] Generic LSP Ya… Loa Andersson
- Re: [Teas] [mpls] [Rtg-yang-coord] Generic LSP Ya… Robert Raszuk
- Re: [Teas] [mpls] [Rtg-yang-coord] Generic LSP Ya… Igor Bryskin
- Re: [Teas] [mpls] [Rtg-yang-coord] Generic LSP Ya… Igor Bryskin
- Re: [Teas] [mpls] [Rtg-yang-coord] Generic LSP Ya… Loa Andersson
- Re: [Teas] [mpls] [Rtg-yang-coord] Generic LSP Ya… Lou Berger
- Re: [Teas] [mpls] [Rtg-yang-coord] Generic LSP Ya… Lou Berger
- Re: [Teas] [mpls] [Rtg-yang-coord] Generic LSP Ya… Gregory Mirsky
- Re: [Teas] [mpls] [Rtg-yang-coord] Generic LSP Ya… Robert Raszuk
- Re: [Teas] [mpls] [Rtg-yang-coord] Generic LSP Ya… Gregory Mirsky
- Re: [Teas] [mpls] [Rtg-yang-coord] Generic LSP Ya… Gregory Mirsky
- Re: [Teas] [mpls] [Rtg-yang-coord] Generic LSP Ya… Robert Raszuk
- Re: [Teas] [mpls] [Rtg-yang-coord] Generic LSP Ya… Robert Raszuk
- Re: [Teas] [mpls] [Rtg-yang-coord] Generic LSP Ya… Gregory Mirsky
- Re: [Teas] [mpls] [Rtg-yang-coord] Generic LSP Ya… Robert Raszuk
- Re: [Teas] [mpls] [Rtg-yang-coord] Generic LSP Ya… Zhangxian (Xian)