Subject: Re: [mpls] MPLS-RT review of draft-atlas-mpls-ldp-mrt-02.txt

From: Gregory Mirsky <[email-masked]>
Date: Tue, 18 Nov 2014 21:31:07 +0000

Dear Authors, MPLS WG chairs, et. al,
I've been asked to review the draft-atlas-mpls-ldp-mrt-02.txt.

The document is very well written, technically sound and clearly addresses integral part of MRT-FRR solution.
It is ready for the WG adoption in my opinion.

Below are my comments to authors that are should not be viewed as gating the adoption:
*       section 4.1, I'd consider padding the MRT Capability TLV with extra 3 octets and changing the Length field accordingly to 4;
*       section 4.3, a bit strange that IANA request to allocate MT-IDs for MRT-Red and MRT-Blue is in ietf-rtgwg-mrt-frr-architecture and not in this document as for Rainbow-MRT's MT-ID (section 4.2). Perhaps by grouping all in one request would make it logistically easier and minimize inter-dependency of the MRT-FRR documents.

Thank you for your kind consideration.

        Regards,
                Greg

-----Original Message-----
From: Loa Andersson [mailto:[email-masked]]
Sent: Tuesday, October 28, 2014 4:26 AM
To: Mach Chen; [email-masked]; Gregory Mirsky
Cc: [email-masked]; VIGOUREUX, MARTIN (MARTIN); [email-masked]
Subject: MPLS-RT review of draft-atlas-mpls-ldp-mrt-02.txt

Mach, Stewart and Greg,

You have be selected as MPLS-RT reviewers for  draft-atlas-mpls-ldp-mrt.

Note to authors: You have been CC'd on this email so that you can know that this review is going on. However, please do not review your own document.

Reviews should comment on whether the document is coherent, is it useful (ie, is it likely to be actually useful in operational networks), and is the document technically sound?  We are interested in knowing whether the document is ready to be considered for WG adoption (ie, it doesn't have to be perfect at this point, but should be a good start).

Reviews should be sent to the document authors, WG co-chairs and WG secretary, and CC'd to the MPLS WG email list. If necessary, comments may be sent privately to only the WG chairs.

If you have technical comments you should try to be explicit about what
*really* need to be resolved before adopting it as a working group document, and what can wait until the document is a working group document and the working group has the revision control.

Are you able to review this draft by Nov 18, 2014? Please respond in a timely fashion.

Thanks, Loa
(as MPLS WG chair)

-------- Original Message --------
Subject: [mpls] I-D Action: draft-atlas-mpls-ldp-mrt-02.txt
Date: Mon, 27 Oct 2014 09:09:38 -0700
From: [email-masked]<mailto:[email-masked]>
To: [email-masked]<mailto:[email-masked]>
CC: [email-masked]<mailto:[email-masked]>

A New Internet-Draft is available from the on-line Internet-Drafts directories.
  This draft is a work item of the Multiprotocol Label Switching Working Group of the IETF.

         Title           : LDP Extensions to Support Maximally Redundant
Trees
         Authors         : Alia Atlas
                           Kishore Tiruveedhula
                           Chris Bowers
                           Jeff Tantsura
                           IJsbrand Wijnands
        Filename        : draft-atlas-mpls-ldp-mrt-02.txt
        Pages           : 16
        Date            : 2014-10-27

Abstract:
    This document specifies extensions to LDP to support the creation of
    label-switched paths for Maximally Redundant Trees (MRT).  A prime
    use of MRTs is for unicast and multicast IP/LDP Fast-Reroute, which
    we will refer to as MRT-FRR.

    The sole protocol extension to LDP is simply the ability to advertise
    an MRT Capability.  This document describes that extension and the
    associated behavior expected for LSRs and LERs advertising the MRT
    Capability.

    MRT-FRR uses LDP multi-topology extensions and requires three
    different multi-topology IDs to be allocated from the LDP MT-ID
    space.

The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-atlas-mpls-ldp-mrt/

There's also a htmlized version available at:
http://tools.ietf.org/html/draft-atlas-mpls-ldp-mrt-02

A diff from the previous version is available at:
http://www.ietf.org/rfcdiff?url2=draft-atlas-mpls-ldp-mrt-02

Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org.

Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/

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