Re: [CCAMP] I-D Action: draft-ietf-ccamp-mpls-tp-rsvpte-ext-associated-lsp-04.txt

John E Drake <jdrake@juniper.net> Thu, 16 August 2012 21:36 UTC

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From: John E Drake <jdrake@juniper.net>
To: Lou Berger <lberger@labn.net>, "Rakesh Gandhi (rgandhi)" <rgandhi@cisco.com>
Date: Thu, 16 Aug 2012 14:35:52 -0700
Thread-Topic: [CCAMP] I-D Action: draft-ietf-ccamp-mpls-tp-rsvpte-ext-associated-lsp-04.txt
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Subject: Re: [CCAMP] I-D Action: draft-ietf-ccamp-mpls-tp-rsvpte-ext-associated-lsp-04.txt
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Lou,

Since the WG did not agree to this changes, let alone discuss them, would it be possible to simply rollback these changes and ask the authors to write a draft addressing the topics you list in your email, below?

Thanks,

John 

Sent from my iPhone


> -----Original Message-----
> From: ccamp-bounces@ietf.org [mailto:ccamp-bounces@ietf.org] On Behalf
> Of Lou Berger
> Sent: Thursday, August 16, 2012 2:10 PM
> To: Rakesh Gandhi (rgandhi)
> Cc: ccamp@ietf.org
> Subject: Re: [CCAMP] I-D Action: draft-ietf-ccamp-mpls-tp-rsvpte-ext-
> associated-lsp-04.txt
> 
> Rakesh,
> 	Such major changes (in scope and functionality) to WG drafts are
> usually discussed with the WG prior to the authors/editors just
> publishing the changes.  But, this is a judgment call by the document
> editors in how, quoting rfc2418, they "ensur[e] that the contents of
> the document accurately reflect the decisions that have been made by
> the working group."
> 
> So let's jump into discussing the changes.
> 
> As I see it this draft introduces several major functional changes that
> have not been discussed by the WG.  Correct me if I get them wrong, but
> I believe they include:
> 1) Introduction of a second method for signaling Co-routed LSPs
> 2) Support for FRR bypass tunnels for piggybacked on the TP
> bidirectional LSP mechanisms.
> 
>    There are also other changes, but I'll defer discussing them
>    until the discussion on the above is concluded.
> 
> Is this correct?
> 
> Assuming yes, I have questions about both rational and specific
> mechanisms.  For now let's look at the former, so please:
> 
> A) Articulate the issues/limitations with using the RFC3473 defined
> mechanisms for (co-routed) bidirectional LSPs that you'd like to see
> addressed.
> 
> B.1) Articulate the FRR/GMPLS-related issue you'd like to address?
> 
> B.2) Articulate why this issue should be solved in a TP-specific and
> not GMPLS generic fashion?
> 
> Thanks,
> Lou
> 
> On 8/16/2012 4:26 PM, Rakesh Gandhi (rgandhi) wrote:
> > Hi Lou,
> >
> > Yes.
> >
> > Please advise if you think detailed email is required.
> > We believe latest draft summarizes the changes well and we could
> start review/discussions from there.
> >
> > Thanks,
> > Rakesh
> >
> >
> > -----Original Message-----
> > From: Lou Berger [mailto:lberger@labn.net]
> > Sent: Thursday, August 16, 2012 4:00 PM
> > To: Rakesh Gandhi (rgandhi)
> > Cc: ccamp@ietf.org; zhang.fei3@zte.com.cn
> > Subject: Re: [CCAMP] I-D Action:
> > draft-ietf-ccamp-mpls-tp-rsvpte-ext-associated-lsp-04.txt
> >
> > Rakesh,
> > 	Is this the start of the thread that I requested in
> > http://www.ietf.org/mail-archive/web/ccamp/current/msg13729.html
> >
> > In particular, is it the response to:
> >> I'd like to ask that someone (Rakesh, Fei, etc.) review each of the
> >> proposed change and the rational for each change (in one or in
> >> separate e-mails). The WG discussion can then really begin on the
> >> proposed changes. (Which are quite substantial both in scope and
> >> implication.)
> >
> > Lou
> >
> > On 8/16/2012 3:19 PM, Rakesh Gandhi (rgandhi) wrote:
> >> Hi All,
> >>
> >> We have uploaded a new version of this draft with following changes:
> >
> > 1.  Added a section on Signaling of Co-routed LSPs
> >
> > 2.  Added clarification on Signaling of Associated Bidirectional
> > Protection LSPs
> >
> > 3.  Added a section on Signaling of Auto-tunnel Mesh-group LSPs
> >
> > 4.   Added clarification on Signaling of Inter-domain Associated
> Bidirectional LSPs
> >
> > 5.  The Extended ASSOCIATION object format with Association Type
> "Associated Bidirectional LSP". Clarified on how to populate different
> fields in this object.
> >
> >
> >> We believe that some of these changes were necessary to avoid the
> interoperability issues due to potentially different interpretations.
> >>
> >> Your review comments are welcome.
> >>
> >> Thanks,
> >> Rakesh
> >>
> >> -----Original Message-----
> >> From: ccamp-bounces@ietf.org [mailto:ccamp-bounces@ietf.org] On
> >> Behalf Of internet-drafts@ietf.org
> >> Sent: Wednesday, August 15, 2012 10:53 AM
> >> To: i-d-announce@ietf.org
> >> Cc: ccamp@ietf.org
> >> Subject: [CCAMP] I-D Action:
> >> draft-ietf-ccamp-mpls-tp-rsvpte-ext-associated-lsp-04.txt
> >>
> >>
> >> A New Internet-Draft is available from the on-line Internet-Drafts
> directories.
> >>  This draft is a work item of the Common Control and Measurement
> Plane Working Group of the IETF.
> >>
> >> 	Title           : RSVP-TE Extensions for Associated Bidirectional
> LSPs
> >> 	Author(s)       : Fei Zhang
> >>                           Ruiquan Jing
> >>                           Rakesh Gandhi
> >> 	Filename        : draft-ietf-ccamp-mpls-tp-rsvpte-ext-associated-
> lsp-04.txt
> >> 	Pages           : 17
> >> 	Date            : 2012-08-15
> >>
> >> Abstract:
> >>    The MPLS Transport Profile (MPLS-TP) requirements document
> [RFC5654],
> >>    describes that MPLS-TP MUST support associated bidirectional
> point-
> >>    to-point LSPs.
> >>
> >>    This document provides a method to bind two unidirectional Label
> >>    Switched Paths (LSPs) into an associated bidirectional LSP.  The
> >>    association is achieved by defining the new Association Type in
> the
> >>    Extended ASSOCIATION object.
> >>
> >>
> >> The IETF datatracker status page for this draft is:
> >> https://datatracker.ietf.org/doc/draft-ietf-ccamp-mpls-tp-rsvpte-
> ext-
> >> a
> >> ssociated-lsp
> >>
> >> There's also a htmlized version available at:
> >> http://tools.ietf.org/html/draft-ietf-ccamp-mpls-tp-rsvpte-ext-
> associ
> >> a
> >> ted-lsp-04
> >>
> >> A diff from the previous version is available at:
> >> http://www.ietf.org/rfcdiff?url2=draft-ietf-ccamp-mpls-tp-rsvpte-
> ext-
> >> a
> >> ssociated-lsp-04
> >>
> >>
> >> Internet-Drafts are also available by anonymous FTP at:
> >> ftp://ftp.ietf.org/internet-drafts/
> >>
> >> _______________________________________________
> >> CCAMP mailing list
> >> CCAMP@ietf.org
> >> https://www.ietf.org/mailman/listinfo/ccamp
> >>
> >>
> >>
> >>
> >
> >
> >
> >
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