Re: Polling for new WG I-Ds
Igor Bryskin <i_bryskin@yahoo.com> Mon, 21 August 2006 13:49 UTC
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Date: Mon, 21 Aug 2006 06:38:52 -0700
From: Igor Bryskin <i_bryskin@yahoo.com>
Subject: Re: Polling for new WG I-Ds
To: Adrian Farrel <adrian@olddog.co.uk>
Cc: ccamp@ops.ietf.org, owner-ccamp@ops.ietf.org
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Hi, Yes to all three. Igor ----- Original Message ----- From: To: "Adrian Farrel" Cc: ; Sent: Thursday, August 17, 2006 6:32 AM Subject: Re: Polling for new WG I-Ds > adrian - see in-line > > Adrian Farrel wrote: > > Hi, > > > > As discussed in Montreal, we need to poll for a couple of new WG drafts. > > > > > http://www.ietf.org/internet-drafts/draft-bernstein-ccamp-gmpls-vcat-lcas-04.txt > > > has been updated by the authors to provide further details and > > clarification. > > - ok - > > > > http://www.ietf.org/internet-drafts/draft-caviglia-ccamp-pc-and-sc-reqs-02.txt > > - guess it is v03.txt ? - > > > has been updated since the version discussed in Montreal. > > i am ok in investigating the MP->CP but i have two concerns that imho > should deserve more specific attention to maintain consistency wrt to > CP->MP > > section 2.2: if control is lost for an LSP (during CP failure) how can it > be possible transfer that LSP from the CP -> MP ? [dan] Yes, there is a problem if we still want to use the control plane to do the CP->MP transfer. Unless the transfer is based on the predetermined policy, MP takes the control of the LSP resource directly (no signaling required), but this way should not be discussed in CCAMP. > > section 4.4: why the document assumes that both MUST be supported ? in > part. concerning the CP->MP if one does implement current GMPLS signaling > restart/recovery why shall this be mandated ? in brief, the document shall > take into account existing mechanisms and prevent overlaps (with existing > GMPLS mechanisms) > [dan] I think the CP->MP should not be the mandatory requirement. > hence, it is strongly suggested to identify conditions when such CP->MP is > required (and not an alternative to existing CP mechanisms) b/f > progressing that part > [dan] In order to make the carriers' life easy, when we provide the MP->CP conversion feature, the reverse procedure (CP->MP) may also is needed just simply in case the carriers want to withdraw their previous decision, and they also feel more comfortable with this "undo" function; In order to achieve this, we should have the working control plane. > > > http://www.ietf.org/internet-drafts/draft-ali-ccamp-mpls-graceful-shutdown-04.txt > > > has been updated as Zafar says in his previous email. > > informational imho - in its current version > > - not sure to understand why the PathErr/Notify can be processed by the > head-end only (what about segment recovery and stitching case) - why only > MBB is possible upon reception (pls use E2E recovery/Segment recovery > capabilities as you address GMPLS networks) > > - compared to path-reopt, error description is identical for the TE link > case which leads to the following point - if errors code/value are the > same how to distinguish them (assuming that the query procedure described > in path-reopt is used during the setup of that LSP) ? - comment is more > for the path-reopt draft than yours but since there is an overlap ... it > must be addressed in a way or another (note that when fully head-end > driven operations look similar but there is a major difference role of > timing and severity of the error code/value) > > - in case shutdown of a protected component link (of a bundle) is > initiated why can't link protection be used ? > > > Please send yes or no for these I-Ds. > > > > Reasons and opinions are also welcomed. > > > > Thanks, > > Adrian > > --------------------------------- Do you Yahoo!? Next-gen email? Have it all with the all-new Yahoo! Mail Beta.
- Polling for new WG I-Ds Adrian Farrel
- Re: Polling for new WG I-Ds Richard Rabbat
- Re: Polling for new WG I-Ds Dan Li
- Re: Polling for new WG I-Ds Wataru Imajuku
- Re: Polling for new WG I-Ds Huub van Helvoort
- Re: Polling for new WG I-Ds Diego Caviglia
- RE: Polling for new WG I-Ds Trevor Wilson
- comments on ID-draft-bernstein-ccamp-gmpls-vcat-l… Huub van Helvoort
- Re: Polling for new WG I-Ds Dimitri.Papadimitriou
- RE: comments on ID-draft-bernstein-ccamp-gmpls-vc… Trevor Wilson
- Re: comments on ID-draft-bernstein-ccamp-gmpls-vc… Huub van Helvoort
- Re: Polling for new WG I-Ds Dan Li
- Re: Polling for new WG I-Ds Kenji Kumaki
- Re: Polling for new WG I-Ds Tomohiro Otani
- RE: Polling for new WG I-Ds Zafar Ali (zali)
- RE: Polling for new WG I-Ds LE ROUX Jean-Louis RD-CORE-LAN
- Re: Polling for new WG I-Ds Igor Bryskin
- Re: Polling for new WG I-Ds Eric W Gray
- RE: Polling for new WG I-Ds Dean Cheng (dcheng)
- Re: Polling for new WG I-Ds Tomohiro Otani
- Re: Polling for new WG I-Ds Dimitri.Papadimitriou
- Re: Polling for new WG I-Ds Diego Caviglia
- Re: Polling for new WG I-Ds Diego Caviglia
- RE: Polling for new WG I-Ds Bryskin, Igor
- RE: Polling for new WG I-Ds Drake, John E
- RE: Polling for new WG I-Ds Ong, Lyndon
- RE: Polling for new WG I-Ds Brungard, Deborah A, ALABS
- RE: Polling for new WG I-Ds Bryskin, Igor
- RE: Polling for new WG I-Ds Drake, John E
- Re: Polling for new WG I-Ds Dimitri.Papadimitriou
- RE: Polling for new WG I-Ds Bryskin, Igor
- RE: Polling for new WG I-Ds benjamin.niven-jenkins
- RE: Polling for new WG I-Ds Bryskin, Igor
- RE: Polling for new WG I-Ds Drake, John E
- RE: Polling for new WG I-Ds Drake, John E
- RE: Polling for new WG I-Ds Bryskin, Igor
- RE: Polling for new WG I-Ds Bryskin, Igor
- RE: Polling for new WG I-Ds Brungard, Deborah A, ALABS
- RE: Polling for new WG I-Ds Drake, John E
- RE: Polling for new WG I-Ds Bryskin, Igor
- Re: Polling for new WG I-Ds Richard Rabbat
- RE: Polling for new WG I-Ds Bryskin, Igor
- RE: Polling for new WG I-Ds Bryskin, Igor
- RE: Polling for new WG I-Ds Drake, John E
- RE: Polling for new WG I-Ds Drake, John E
- RE: comments on ID-draft-bernstein-ccamp-gmpls-vc… Trevor Wilson
- New WG I-Ds Adrian Farrel