* Technical Summary
This document defines the semantics that allows for grouping of
forward error correction (FEC) streams with the protected payload
streams in Session Description Protocol (SDP). The semantics defined
in this document is to be used with Grouping of Media Lines in the
Session Description Protocol (RFC 3388) to group together "m" lines
in the same session.
* Working Group Summary
The draft is a product of the MMUSIC working group.
* Protocol Quality
The draft extends an existing SDP feature, to support FEC. This
is an obvious use of the grouping feature, and is needed to support the
ULP work ongoing in AVT.
* Note to RFC Editor
Please change the reference to SDP (reference [3]) from informative to
normative.
Please consider the Gen-ART comments - they all look like good
improvements.
Section 3, third paragraph:
Old
When FEC data are multiplexed with the original payload stream, the
association relationship is indicated as specified in RTP Payload for
Redundant Audio Data (RFC 2198) [4]. As an example, such relationship
can be indicated as in the generic RFC payload format for FEC [5].
New
When FEC data are multiplexed with the original payload stream, the
association relationship may for example be indicated as specified in
RTP Payload for Redundant Audio Data (RFC 2198) [4]. The generic RFC
payload format for FEC [5] uses that method.
Section 5:
Old:
It is recommended that the receiver
SHOULD do integrity check on SDP and follow the security
considerations of SDP to only trust SDP from trusted sources.
New:
It is recommended that the receiver
SHOULD do integrity check on SDP and follow the security
considerations of SDP [3] to only trust SDP from trusted sources.