Re: [MMUSIC] Minor correction to ICE RTP/RTCP handling

Suhas Nandakumar <suhasietf@gmail.com> Thu, 16 May 2019 20:41 UTC

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From: Suhas Nandakumar <suhasietf@gmail.com>
Date: Thu, 16 May 2019 13:41:30 -0700
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To: Roman Shpount <roman@telurix.com>
Cc: mmusic WG <mmusic@ietf.org>
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Subject: Re: [MMUSIC] Minor correction to ICE RTP/RTCP handling
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On Fri, Apr 26, 2019 at 2:04 PM Roman Shpount <roman@telurix.com>; wrote:

> Hi All,
>
> One more change related to
> https://github.com/suhasHere/ice-sip-sdp/pull/1
>
> In the current version of ice-sip-sdp, it was specified that agent MUST
> include SDP candidate attributes for both the RTP and RTCP components if
> RTCP is used.. I think this is incorrect if RTCP mux only is used, only
> candidate attributes for RTP must be included. To address this I have
> changed the RTP/RTCP Considerations section.
>
> Old Text:
>
> If an agent utilizes both RTP and RTCP, the agent MUST include SDP
> candidate attributes for both the RTP and RTCP components in the "m="
> section.
>
> If an agent uses separate ports for RTP and RTCP, the agent MUST include
> an  SDP rtcp attribute in the "m=" section, as described in <<RFC3605>>. In
> the cases  where the port number for the RTCP is one higher than the RTP
> port and RTCP  component address is same as the address of the RTP
> component, the SDP rtcp  attribute MAY be omitted.
>
>
> New Text:
>
> If an agent utilizes both RTP and RTCP, and separate ports are used for
> RTP and RTCP, the agent MUST include SDP candidate attributes for both the
> RTP and RTCP components and SDP rtcp attribute SHOULD be included in the
> "m=" section, as  described in <<RFC3605>>. In the cases  where the port
> number for the RTCP is one higher than the RTP port and RTCP component
> address is same as the address of the RTP component, the SDP rtcp attribute
> MAY be omitted.
>
>
> Please let me know what you think
>

[Suhas] Agree with the changes and incorporated. Thanks Roman

> .
> _____________
> Roman Shpount
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