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Last Call Review of draft-ietf-anima-prefix-management-05

Request Review of draft-ietf-anima-prefix-management
Requested revision No specific revision (document currently at 07)
Type Last Call Review
Team Routing Area Directorate (rtgdir)
Deadline 2017-10-12
Requested 2017-09-29
Requested by Alvaro Retana
Authors Sheng Jiang , Zongpeng Du , Brian E. Carpenter , Qiong Sun
I-D last updated 2017-10-16
Completed reviews Genart Last Call review of -05 by Dan Romascanu (diff)
Rtgdir Last Call review of -05 by Geoff Huston (diff)
Opsdir Last Call review of -06 by Fred Baker (diff)
Secdir Last Call review of -05 by Russ Housley (diff)
Secdir Telechat review of -06 by Catherine Meadows (diff)
Genart Telechat review of -06 by Dan Romascanu (diff)
Assignment Reviewer Geoff Huston
State Completed
Request Last Call review on draft-ietf-anima-prefix-management by Routing Area Directorate Assigned
Reviewed revision 05 (document currently at 07)
Result Has issues
Completed 2017-10-16

I have been selected as the Routing Directorate reviewer for this draft. The
Routing Directorate seeks to review all routing or routing-related drafts as
they pass through IETF last call and IESG review, and sometimes on special
request. The purpose of the review is to provide assistance to the Routing
ADs. For more information about the Routing Directorate, please see

Although these comments are primarily for the use of the Routing ADs, it
would be helpful if you could consider them along with any other IETF Last
Call comments that you receive, and strive to resolve them through
discussion or by updating the draft.

Document: draft-name-version.txt 
Reviewer: your-name 
Review Date: date 
IETF LC End Date: date-if-known 
Intended Status: copy-from-I-D


  I have some minor concerns about this document that I think should be
  resolved before publication


  This document describes an "autonomic solution for IPv6 prefix
  management at the edge of large-scale ISP networks".

  The document contains a description of a mechanism to request and receive
  an IPv6 prefix, which is just one part of an overall process of address
  management in a network. The document could benefit from some
  considerations of the interplay between this address assignment mechanism
  and the routing system used within the network. The document also does not
  explicitly address issues of address prefix reuse, and the relative
  advantages and disadvantages between an address management mechanism that
  attempts to define a long lived association between a device a particular
  address prefix, and a dynamic pool management system that admits for high
  levels of prefix reuse. The document also does not define the intended scope 
  applicability - for example is this mechanism intended to operate across
  network administrative boundaries? If not, how are such adminis boundaries

  This is intended for publication as an informational document, so there is
  no requirement to meet strict standards of precision and clarity. That
  said, there are areas where the language is speculative and vague, and
  some assertions are clearly untested (and somewhat dubious in the way in
  which they are stated).

Comments on quality and readability.

  I don't believe that the document clearly achieves what it intended to

  The document describes a problem space, and then jumps immediately into a
  way to define an ANIMA scheme that could be set up to perform a prefix
  assignment function. It would help in an informational document to provide
  a bridge between problem and solution specifics, namely a design overview
  of they overall approach being described in this document.
  Other reviews have noted editorial nits - no point in repeating that work