El Thursday 21 August 2008 10:12:51 Attila Sipos escribió:
> 3. if the OPTIONS is forked - and the first fork responded
> with 200 OK? What does the proxy do with subsequent
> 200 OKs?
16.7 Response Processing
5. Check response for forwarding
Until a final response has been sent on the server transaction,
the following responses MUST be forwarded immediately:
- Any provisional response other than 100 (Trying)
- Any 2xx response
...
After a final response has been sent on the server transaction,
the following responses MUST be forwarded immediately:
- Any 2xx response to an INVITE request <--- just INVITE !!!!!
This step, combined with the next, ensures that a stateful
proxy will forward exactly one final response to a non-INVITE
request, and either exactly one non-2xx response or one or more
2xx responses to an INVITE request.
6. Choosing the best response
A stateful proxy MUST send a final response to a response
context's server transaction if no final responses have been
immediately forwarded by the above rules
(This is the point, since a 200 OK for a non-INVITE was already
received !!!)
So, the documented behaviour is that when a proxy forks a non-INVITE request
(an OPTIONS for example), if it receives a 200 from one location it replies
it directly to the UAC and absorb the rest of future responses from other
branches (other client transactions).
--
Iñaki Baz Castillo
[EMAIL PROTECTED]
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