Re: [mpls] I-D Action: draft-cui-mpls-tp-mfp-use-case-and-requirements-05.txt

Hello authors of this draft,

Triggered by a reference to your draft in another discussion I have read
your draft.

It describes useful use cases.

I would recommend to add to the introduction an explicit statement that
these use cases are specifically to end-to-end linear protection.
Currently only the abstract briefly mentions this and can easily be 
overlooked.

I also would recommend to add a requirement that any of the n working
entities and m protection entities should follow a disjoint path through
the network from node A to node Z.

Best regards, Huub.

> 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           : Use Cases and Requirements for MPLS-TP multi-failure protection
>          Authors         : Zhenlong Cui
>                            Rolf Winter
>                            Himanshu Shah
>                            Sam Aldrin
>                            Masahiro Daikoku
> 	Filename        : draft-cui-mpls-tp-mfp-use-case-and-requirements-05.txt
> 	Pages           : 8
> 	Date            : 2015-07-06
>
> Abstract:
>     For the Multiprotocol Label Switching Transport Profile (MPLS-TP)
>     linear protection capable of 1+1 and 1:1 protection has already been
>     defined.  That linear protection mechanism has not been designed for
>     handling multiple, simultaneously occuring failures, i.e. multiple
>     failures that affect the working and the protection entity during the
>     same time period.  In these situations currently defined protection
>     mechanisms would fail.
>
>     This document introduces use cases and requirements for mechanisms
>     that are capable of protecting against such failures.  It does not
>     specify a multi-failure protection mechanism itself.
>
>
> The IETF datatracker status page for this draft is:
> https://datatracker.ietf.org/doc/draft-cui-mpls-tp-mfp-use-case-and-requirements/
>
> There's also a htmlized version available at:
> https://tools.ietf.org/html/draft-cui-mpls-tp-mfp-use-case-and-requirements-05
>
> A diff from the previous version is available at:
> https://www.ietf.org/rfcdiff?url2=draft-cui-mpls-tp-mfp-use-case-and-requirements-05
>
>
> 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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