Re: [mpls] http://tools.ietf.org/html/draft-busibel-teas-yang-path-computation-00
Igor Bryskin <Igor.Bryskin@huawei.com> Thu, 03 November 2016 14:29 UTC
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From: Igor Bryskin <Igor.Bryskin@huawei.com>
To: "Belotti, Sergio (Nokia - IT)" <sergio.belotti@nokia.com>, "Scharf, Michael (Nokia - DE)" <michael.scharf@nokia.com>, Daniele Ceccarelli <daniele.ceccarelli@ericsson.com>, "CCAMP (ccamp@ietf.org)" <ccamp@ietf.org>, "pce@ietf.org" <pce@ietf.org>, "TEAS WG (teas@ietf.org)" <teas@ietf.org>, "mpls@ietf.org" <mpls@ietf.org>
Thread-Topic: http://tools.ietf.org/html/draft-busibel-teas-yang-path-computation-00
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Subject: Re: [mpls] http://tools.ietf.org/html/draft-busibel-teas-yang-path-computation-00
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IMHO we do not need both global and action RPC. The latter is more elegant but essentially the same as the former. Igor From: Teas [mailto:teas-bounces@ietf.org] On Behalf Of Belotti, Sergio (Nokia - IT) Sent: Thursday, November 03, 2016 10:25 AM To: Igor Bryskin; Scharf, Michael (Nokia - DE); Daniele Ceccarelli; CCAMP (ccamp@ietf.org); pce@ietf.org; TEAS WG (teas@ietf.org); mpls@ietf.org Subject: Re: [Teas] http://tools.ietf.org/html/draft-busibel-teas-yang-path-computation-00 Igor, this is correct. But if I remember well last weekly tunnel model discussion, action proposal to support stateless solution is still in alternative to a normal RPC. I guess in the new module Tarek has already created "arrangement" for both. Thanks Sergio From: CCAMP [mailto:ccamp-bounces@ietf.org] On Behalf Of Igor Bryskin Sent: Thursday, November 03, 2016 2:49 PM To: Scharf, Michael (Nokia - DE) <michael.scharf@nokia.com>; Daniele Ceccarelli <daniele.ceccarelli@ericsson.com>; CCAMP (ccamp@ietf.org) <ccamp@ietf.org>; pce@ietf.org; TEAS WG (teas@ietf.org) <teas@ietf.org>; mpls@ietf.org Subject: Re: [CCAMP] http://tools.ietf.org/html/draft-busibel-teas-yang-path-computation-00 Michael, Yang 1.1 action is a form of RPC. Igor From: Teas [mailto:teas-bounces@ietf.org] On Behalf Of Scharf, Michael (Nokia - DE) Sent: Thursday, November 03, 2016 9:45 AM To: Igor Bryskin; Daniele Ceccarelli; CCAMP (ccamp@ietf.org<mailto:ccamp@ietf.org>); pce@ietf.org<mailto:pce@ietf.org>; TEAS WG (teas@ietf.org<mailto:teas@ietf.org>); mpls@ietf.org<mailto:mpls@ietf.org> Subject: Re: [Teas] http://tools.ietf.org/html/draft-busibel-teas-yang-path-computation-00 We have discussed this before. From an implementer's perspective, the two clean solutions to the problem seem to either stateful "compute-only" tunnels or a stateless RPC. Michael From: mpls [mailto:mpls-bounces@ietf.org] On Behalf Of Igor Bryskin Sent: Thursday, November 03, 2016 2:34 PM To: Daniele Ceccarelli; CCAMP (ccamp@ietf.org<mailto:ccamp@ietf.org>); pce@ietf.org<mailto:pce@ietf.org>; TEAS WG (teas@ietf.org<mailto:teas@ietf.org>); mpls@ietf.org<mailto:mpls@ietf.org> Subject: [ALU] [mpls]http://tools.ietf.org/html/draft-busibel-teas-yang-path-computation-00 Hi, >From the draft: 6. YANG Model for requesting Path Computation Work on extending the TE Tunnel YANG model to support the need to request path computation has recently started also in the context of the [TE-TUNNEL<https://tools.ietf.org/html/draft-busibel-teas-yang-path-computation-00#ref-TE-TUNNEL>] draft. It is possible to request path computation by configuring a "compute-only" TE tunnel and retrieving the computed path(s) in the LSP(s) Record-Route Object (RRO) list as described in [TE-TUNNEL<https://tools.ietf.org/html/draft-busibel-teas-yang-path-computation-00#ref-TE-TUNNEL>]. This is a stateful solution since the state of each created "compute-only" TE tunnel needs to be maintained and updated, when underlying network conditions change. The need also for a stateless solution, based on an RPC, has been recognized. The YANG model to support stateless RPC is for further study. IB>> Please, note, that in the TE Tunnel model we consider the COMPUTE_AND_FORGET mode. We also consider the concept of path computation action to be defined under the TE tunnel node. All this is to facilitate stateless path computations. Cheers, Igor
- [mpls] CCAMP and JOINT YANG session agenda @IETF97 Daniele Ceccarelli
- [mpls] draft-zhang-ccamp-transport-yang-gap-analy… Igor Bryskin
- [mpls] http://tools.ietf.org/html/draft-busibel-t… Igor Bryskin
- Re: [mpls] [Teas] draft-zhang-ccamp-transport-yan… Belotti, Sergio (Nokia - IT)
- Re: [mpls] http://tools.ietf.org/html/draft-busib… Scharf, Michael (Nokia - DE)
- Re: [mpls] http://tools.ietf.org/html/draft-busib… Daniele Ceccarelli
- Re: [mpls] http://tools.ietf.org/html/draft-busib… Igor Bryskin
- Re: [mpls] http://tools.ietf.org/html/draft-busib… Scharf, Michael (Nokia - DE)
- Re: [mpls] http://tools.ietf.org/html/draft-busib… Igor Bryskin
- Re: [mpls] http://tools.ietf.org/html/draft-busib… Daniele Ceccarelli
- Re: [mpls] http://tools.ietf.org/html/draft-busib… Belotti, Sergio (Nokia - IT)
- Re: [mpls] http://tools.ietf.org/html/draft-busib… Igor Bryskin
- Re: [mpls] http://tools.ietf.org/html/draft-busib… Igor Bryskin
- Re: [mpls] http://tools.ietf.org/html/draft-busib… Daniele Ceccarelli
- Re: [mpls] http://tools.ietf.org/html/draft-busib… Leeyoung
- Re: [mpls] http://tools.ietf.org/html/draft-busib… Scharf, Michael (Nokia - DE)
- Re: [mpls] http://tools.ietf.org/html/draft-busib… Igor Bryskin
- Re: [mpls] http://tools.ietf.org/html/draft-busib… Leeyoung
- Re: [mpls] http://tools.ietf.org/html/draft-busib… Igor Bryskin
- Re: [mpls] http://tools.ietf.org/html/draft-busib… Leeyoung
- Re: [mpls] http://tools.ietf.org/html/draft-busib… Beller, Dieter (Nokia - DE)
- Re: [mpls] http://tools.ietf.org/html/draft-busib… Leeyoung
- Re: [mpls] [Teas] draft-zhang-ccamp-transport-yan… Zhangxian (Xian)
- Re: [mpls] http://tools.ietf.org/html/draft-busib… Dhruv Dhody
- Re: [mpls] http://tools.ietf.org/html/draft-busib… Francesco Lazzeri
- Re: [mpls] http://tools.ietf.org/html/draft-busib… Igor Bryskin
- Re: [mpls] http://tools.ietf.org/html/draft-busib… Igor Bryskin
- Re: [mpls] http://tools.ietf.org/html/draft-busib… Dieter Beller
- Re: [mpls] http://tools.ietf.org/html/draft-busib… Igor Bryskin
- Re: [mpls] http://tools.ietf.org/html/draft-busib… Francesco Lazzeri
- [mpls] 答复: http://tools.ietf.org/html/draft-busib… Fatai Zhang
- Re: [mpls] http://tools.ietf.org/html/draft-busib… Igor Bryskin
- Re: [mpls] http://tools.ietf.org/html/draft-busib… Francesco Lazzeri
- Re: [mpls] http://tools.ietf.org/html/draft-busib… Igor Bryskin
- Re: [mpls] http://tools.ietf.org/html/draft-busib… Francesco Lazzeri
- Re: [mpls] http://tools.ietf.org/html/draft-busib… Igor Bryskin
- Re: [mpls] http://tools.ietf.org/html/draft-busib… Francesco Lazzeri
- Re: [mpls] http://tools.ietf.org/html/draft-busib… Igor Bryskin
- [mpls] 答复: http://tools.ietf.org/html/draft-busib… Fatai Zhang
- Re: [mpls] http://tools.ietf.org/html/draft-busib… Francesco Lazzeri
- Re: [mpls] http://tools.ietf.org/html/draft-busib… Belotti, Sergio (Nokia - IT)
- Re: [mpls] http://tools.ietf.org/html/draft-busib… Igor Bryskin
- Re: [mpls] http://tools.ietf.org/html/draft-busib… Igor Bryskin
- Re: [mpls] http://tools.ietf.org/html/draft-busib… Francesco Lazzeri
- Re: [mpls] http://tools.ietf.org/html/draft-busib… Igor Bryskin
- Re: [mpls] http://tools.ietf.org/html/draft-busib… Francesco Lazzeri
- Re: [mpls] [Teas] http://tools.ietf.org/html/draf… Italo Busi
- Re: [mpls] http://tools.ietf.org/html/draft-busib… Igor Bryskin
- Re: [mpls] [Teas] http://tools.ietf.org/html/draf… Igor Bryskin
- Re: [mpls] [Teas] http://tools.ietf.org/html/draf… Italo Busi
- Re: [mpls] [Teas] http://tools.ietf.org/html/draf… Igor Bryskin
- Re: [mpls] http://tools.ietf.org/html/draft-busib… Francesco Lazzeri
- Re: [mpls] [Teas] http://tools.ietf.org/html/draf… Italo Busi
- Re: [mpls] http://tools.ietf.org/html/draft-busib… Igor Bryskin
- Re: [mpls] http://tools.ietf.org/html/draft-busib… Francesco Lazzeri
- Re: [mpls] [Teas] http://tools.ietf.org/html/draf… Igor Bryskin