[MMUSIC] Review of draft-ietf-mmusic-sctp-sdp-22

[Brian Carpenter <[e-mail]>]

Reviewer: Brian Carpenter
Review result: Ready with Nits

Gen-ART Last Call review of draft-ietf-mmusic-sctp-sdp-22

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Review Team (Gen-ART) reviews all IETF documents being processed
by the IESG for the IETF Chair.  Please treat these comments just
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Document: draft-ietf-mmusic-sctp-sdp-22.txt
Reviewer: Brian Carpenter
Review Date: 2017-02-XX
IETF LC End Date: 2017-02-09
IESG Telechat date:  

Summary: Ready with nits
--------

Comments:
---------

Two points I noted in the writeup:
"There are existing implementations of earlier versions of the
document..."

Excellent, but I wonder why we don't see Implementation Status
sections
under RFC 6982 in more Last Call drafts.

"IPv6 address examples are not necessary since IP version differences
are immaterial to the purpose of the specification."

It's just as easy to give an IPv6 example though, and more future
proof.

Minor issue: (almost a nit)
------------

> 1.  Introduction
...
>   NOTE: Due to the characteristics of TCP, usage of 'TCP/DTLS/SCTP'
>   will always force ordered and reliable delivery of the SCTP
packets,
>   which limits the usage of the SCTP options.  Therefore, it is
>   RECOMMENDED that TCP is only used in situations where UDP traffic
is
>   blocked.

Why would one choose 'TCP/DTLS/SCTP' rather than just 'TCP/TLS'? I
don't
object to it being specified, but since you don't support multihoming
or multiple associations, what is the use case, in a few words?

Nits:
-----

> 4.4.2.  SDP Media Description values
>
>      m= line parameter        parameter value(s)
>     
------------------------------------------------------------------
>      <media>:                 "application"
>      <proto>:                 "UDP/DTLS/SCTP" or "TCP/DTLS/SCTP"
>      <port>:                  UDP port number (for "UDP/DTLS/SCTP")
>                               TCP port number (for
""UDP/DTLS/SCTP")

I think the last line should be: TCP port number (for
"TCP/DTLS/SCTP")

There is some inconsistency in the use of quotation marks:
"UDP/DTLS/SCTP"
or 'UDP/DTLS/SCTP'