I am the assigned Gen-ART reviewer for this draft. The General Area
Review Team (Gen-ART) reviews all IETF documents being processed by the
IESG for the IETF Chair. Please treat these comments just like any other
last call comments. For more information, please see the FAQ at
<http://wiki.tools.ietf.org/area/gen/trac/wiki/GenArtfaq>.
Summary: This draft is on the right track but has open issues, described
in the review.
Major Issues: NONE
Minor Issues:
It would be helpful if this draft described its intended target
audience. It would also benefit from having additional references
providing background context for the substance of the draft.
In particular, "ECMP" and "PMTUD" are used extensively, in the text and
even the title of the draft. While these acronyms are expanded in the
text, there are no references to definitions of them.
I sought out references for ECMP. The ones I found are RFC2991 and
RFC2992, which are old. Is there a more recent analysis that ought to be
considered? It seems that the problem at hand comes when using ECMP for
load balancing across multiple servers. Is there some reference that
talks about that? (RFCs 2991 and 2992 are more general - they could
apply in other contexts and don't mention this use.)
The single reference in the document is to RFC4821. Is it the proper
reference for PMTUD? It seems to be closely related, but it seems to be
more specialized.
In the Security Considerations section a possible attack is identified,
and a mitigation described. But then a seemingly serious drawback to the
mitigation is also described. I think this bears more discussion.
Thanks,
Paul
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