Subject: Re: [Sipping] SIP and TCP transport....

From: Rohan Mahy <[email-masked]>
Date: Tue, 3 Jun 2003 14:30:46 -0700

Sarkar,

On Friday, May 30, 2003, at 10:55 PM, Jonathan Rosenberg wrote:
> Sarkar, Uttam wrote:
>> Hi All,
>> I have posted this messgage to the sip-implementors list. There might 
>> have
>> been a discussion already regarding this.
>> When transport is TCP, do you keep the socket connection open till 
>> the call
>> is active or you close the socket once party A and party B are 
>> connected.
>
> The specification only requires that you keep a connection open until 
> there have been 64*T1 seconds of inactivity. However, genreally 
> speaking it is good to keep the connections open for as long as you 
> have resources, since they could potentially be reused down the road.
>
>> When you get BYE or other sip Message from either end, then you open 
>> new
>> socket connection to the other side to send that request. I would 
>> appreciate
>> your inputs.
>
> Generally there is a separate connection used for requests in each 
> direction.
>
see also the connection reuse draft for a proposal to allow sharing 
connections in both directions.

	draft-ietf-sipping-connect-reuse-reqs-00.txt

thanks,
-rohan

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