Telechat Review of draft-ietf-mboned-auto-multicast-17
review-ietf-mboned-auto-multicast-17-genart-telechat-melnikov-2014-11-28-00

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Gen-ART, please see the FAQ at

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Please resolve these comments along with any other Last Call comments
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Document: draft-ietf-mboned-auto-multicast-17
Reviewer: Alexey Melnikov
Review Date: May 26, 2014
IETF LC End Date: May 26, 2014

Summary:  Nearly ready for publication as a Proposed Standard.

Major issues:


In the document, I am seeing:

5.1.1.1.  Version (V)

   [And in several other similar sections]

   The protocol version number for this message is 0.

5.2.3.2.  Handling AMT Messages

   A gateway that conforms to this specification MUST ignore any message
   with a Version field value other than zero.

5.3.3.1.  Handling AMT Messages

   A relay that conforms to this specification MUST ignore any message
   with a Version field value other than zero.





This might not actually be an issue, if it was discussed in the WG. But 


I am wondering if the WG thought about versioning, backward 


compatibility and other related issues.


How likely is it that a new version of AMT is going to be designed? At 


the moment the document reads like "we have a stub field for future 


versions, but we haven't thought about how they are going to be handled 


yet".





Minor issues: None

Nits/editorial comments:

5.3.3.4.  Handling a Membership Update Message

  o  The computed checksums for the encapsulated IP datagram and its
      payload MUST match the values contained therein.  Checksum
      computation and verification varies by protocol; See [RFC0791] for
      IPv4, [RFC3376] for IGMPv3, and [RFC4443] for MLD (ICMPv6).

Any recommendation for IPv6 or is it covered by one of the other choices?