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Re: [MMUSIC] FW: I-D Action:draft-stiemerling-rtsp-announce-01.txt



Martin Stiemerling skrev:
> Hi all,
> 
> This is an updated version of the RTSP 2.0 ANNOUNCE draft. The draft has been discussed during the last IETF meeting, but the WG didn't find a conclusion yet.
> 
> The draft argues for introducing semantics for two explicit RTSP server to client asynchronous notifications:
> - one for end-of-stream and
> - one for end-of-session. 
> 
> There is already some embedded end-of-session in RFC 2326bis but it is a bit hidden in REDIRECT. 
> 
> I'm still in favour of adding a new method to RTSP 2.0 (ANNOUNCE or any other name) that is used to convey these two asynchronous notifications. 
> 
> Any comment?

Hi,

I am also supporting to add a new method for end-of-stream notification. 
I would discourage against using Announce due to both the confusion 
around RTSP/1.0 Announce and the propreitary extensions existing.

In general I think overloading is a bad practice that RTSP 1.0 has 
suffered greately from. By having RTSP 2.0 being clear that it is likely 
that new methods will be defined for different extensions purposes. Thus 
having a very generic method name for end-of-stream notification seems 
to be bad practice.

When it comes to end-of-session I think we should take a second look on 
what so far is defined. And work from that. If that is overloaded and 
found to have short comming we should fix that in the best possible way.

Cheers

Magnus Westerlund

IETF Transport Area Director & TSVWG Chair
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Multimedia Technologies, Ericsson Research EAB/TVM
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Ericsson AB                | Phone +46 8 4048287
Torshamsgatan 23           | Fax   +46 8 7575550
S-164 80 Stockholm, Sweden | mailto: magnus.westerlund at ericsson.com
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