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[MMUSIC] Mismatch between sdp-bundle-negotiation and RFC5888

Roman Shpount <roman@telurix.com> Wed, 28 November 2018 00:07 UTC

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From: Roman Shpount <roman@telurix.com>
Date: Tue, 27 Nov 2018 19:07:17 -0500
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To: mmusic WG <mmusic@ietf.org>, Christer Holmberg <christer.holmberg@ericsson.com>
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Subject: [MMUSIC] Mismatch between sdp-bundle-negotiation and RFC5888
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Hi All,

I know this is a really late notice, but I think there is a slight mismatch
between RFC5888 and sdp-bundle.

RFC 5888 Section 9.2 (https://tools.ietf.org/html/rfc5888#section-9.2) says:

SIP entities refuse media streams by setting the port to zero in the
corresponding "m" line. "a=group" lines MUST NOT contain
identification-tags that correspond to "m" lines with the port set to zero.


Considering that sdp-bundle redefines the meaning of port zero when
'bundle-only' attribute is present, RFC5888 will need to be updated to
allow including bundle-only media streams in the "a=group" lines.

Regards,
_____________
Roman Shpount

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