Re: [MMUSIC] RTSP: Connectionless vs. connection-based

[Magnus Westerlund <magnus.westerlund@era.ericsson.se>]

Hi Jonathan,

I had the following sentence in my previous letter which shows my view 
on the issue.

"The server should never close a connection unless the session times 
out, even not after teardown of the session."

So my answer to your question is NO, the server shall not close the 
connection. The connection was initiated by the client, so it is the 
clients to control and decide about. The only two reasons for the server 
to close a connection is a serious server internal error that can't be 
recovered from and when the server is taken off line and redirect has 
been issued in sufficient time before this event.

Regards

Magnus

Jonathan Sergent wrote:

>
> On Thursday, June 13, 2002, at 04:42 AM, Magnus Westerlund wrote:
>
>> -  Any RTSP message with the sessions ID. A list in order of 
>> preference of use should be established: Ping, Options with session 
>> header.
>> -  RTCP messages from the client for the RTP sessions attached to the 
>> session's media streams.
>> - The TCP connection if it has keep alive messages verifying that 
>> connectivity exist. (I am a little doubting about this. This may not 
>> show an application failure correctly)
>>
>> My point is that persistent TCP is actually a special case of 
>> non-persistent, and if a server implements non-persistent correctly 
>> it will work fine when the client do not close the TCP connection.
>
>
> This doesn't deal with the server closing the connection.  Should the 
> server be able to close the connection after PLAY and assume the 
> client will reconnect if it wants to send a PAUSE?  If the client does 
> not expect this, it may stop playing the stream when this happens.
>
> --jss.
>
>
>
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-- 

Magnus Westerlund 

Multimedia Technologies, Ericsson Research ERA/TVA/A
----------------------------------------------------------------------
Ericsson Radio Systems AB  | Phone +46 8 4048287
Torshamsgatan 23           | Fax   +46 8 7575550
S-164 80 Stockholm, Sweden | mailto: magnus.westerlund@era.ericsson.se




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