Please see in line below for my response to your questions. I will post a revised version of the draft tomorrow.
Regards,
Malcolm
| "Adrian Farrel"
<adrian@xxxxxxxxxxxx>
Sent by: ietf-bounces@xxxxxxxx 09/12/2011 05:49 AM
|
|
Hi Malcolm and Huub,
I have squeezed a little time from the current ITU-T meeting to look at your
draft and write-up. I have also read the email threads on the IETF discussion
list and the MPLS list. Sorry that this has taken me a week to process, but your
publication request came at pretty much the worst possible time for getting me
to do this task.
I don't like proliferating threads across multiple mailing lists. On the other
hand it is difficult to ensure that all the constituencies are present, so I am
perpetuating the cross-posting.
My review of the document...
1. idnits (http://www.ietf.org/tools/idnits/) shows a couple of nits. I think
only one of these is real (the spurious space in a citation). The other nits are
spurious caused by citations wrapping across lines. Could you please keep a note
of the nit so that you can fix it the next time the draft is respun or so it can
be captured in an RFC Editor Note at a later stage (you don't have to post a new
revision to address this now unless you really want to).
[MB] OK fixed in the update
2. This document requests a code point from a registry that contains code points
that are used equally for MPLS LSPs and pseudowires. I can't tell from the I-D
whether it is your intention that your code point would also be applicable in
both cases. What is your intention? Is this "obvious" from G.8113.1 or does it
need to be clarified?
[MB] The draft requests a code point to support Ethernet based OAM messages the use of these messages on MPLS-TP LSPs and PWs is described in G.8113.1 other uses are not prohibited by this draft.
My review of the write-up and discussions...
3. There seems to be quite a feeling on the mailing lists that this document
should be run through the MPLS working group. The write-up makes a case for
progressing it as AD sponsored. As far as I can see, the main assertions to
answer are as follows. Do you have a view on these points before I make a
decision on what to do?
a. This is a proposal to use an MPLS code point and so is part of MPLS by
definition.
b. The type of network being managed by the OAM described in G.8113.1 is an MPLS
network. Therefore, this is clearly relevant to the MPLS working .
Do you object to this going through the MPLS on principle, or were you just
hoping to save the WG the work? If the latter, and if the WG wants to look at
the draft, the easiest approach seems to be to redirect the work to the working
group.
[MB] G.8113.1 supports a subset of the functions defined in draft-bhh-mpls-tp-oam-y1731-08. The -00 version was posted in March 2009, the draft was presented at several meetings in 2009 and early 2010 and had extensive discussion on the MPLS mailing list. However, the MPLS WG have, by rough consensus, adopted a different approach. Therefore, further review by the MPLS WG is of little value.
4. G.8113.1 is clearly important to understanding to which the code point is
being put. Thus, an available and stable copy of group. G.8113.1 will be key to
the last call review of you I-D. Can you make a stable copy available (for
example, through liaison)? How does the editing work currently in progress in
the SG15 meeting affect that availability?
[MB] The draft is requesting a code point for the version of G.8113.1 that was forwarded to WTSA by SG 15 in December, this is the same as the draft that was determined in February 2011, I am not anticipating any changes prior to the approval decision at WTSA. None of the changes in G.8113.1 that were discussed during the drafting sessions and were anticipated in draft-betts-itu-oam-ach-code-point-01 were implemented, as I stated above I will post a new version draft-betts-itu-oam-ach-code-point to correctly reflect the content and title of G.8113.1 later this week.
5. Can you clarify for me why the suggested value has been suggested. This will
help guide IANA who would normally do their allocation in a "tidy" way.
[MB] This value corresponds to the Ethertype used for Ethernet OAM
Looking forward to your reply.
Thanks,
Adrian
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