Jonathan
I am seeking to clarify that in the statement from your reply
When a provisional arrives, the interval goes to 4s if
it is not already at 4s.
the number of retransmissions for non-INVITE requests is unaffected
(i.e.remains at 10).
Also, is this mentioned anywhere in the rfc or bis?
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]] On Behalf Of Jonathan
Rosenberg
Sent: Thursday, March 29, 2001 12:27 AM
To: 'Deepak Mohan'; [EMAIL PROTECTED]
Subject: RE: [Sip-implementors] Retransmissions in Proxy
> -----Original Message-----
> From: Deepak Mohan [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, March 27, 2001 11:35 PM
> To: [EMAIL PROTECTED]
> Subject: [Sip-implementors] Retransmissions in Proxy
>
>
> Section 12.3.4 of bis-02 states that responses from UAS are
> cached and retransmitted to a UAC on a stateful proxy.
> Does a proxy retransmit cached *requests* to UASs on
> non-arrival of responses?
The behavior for transmissions of requests at a stateful proxy is the same
as a UAC. For invite, they are retransmitted with an increasing period until
a provisional or final response, at which time they stop. For non-INVITE,
they are retransmitted with an increasing period until 4s, and then
retransmitted at 4s. When a provisional arrives, the interval goes to 4s if
it is not already at 4s. Request retransmissions stop when a final response
arrives.
> Or do the retransmissions originate
> at the UAC?
A stateful proxy re-originates the request.
> I beleive that the proxy will retransmit requests if forked,
> but otherwise?
A forking proxy must be stateful, but a non-forking proxy can also be
stateful.
-Jonathan R.
---
Jonathan D. Rosenberg 72 Eagle Rock Ave.
Chief Scientist First Floor
dynamicsoft East Hanover, NJ 07936
[EMAIL PROTECTED] FAX: (973) 952-5050
http://www.cs.columbia.edu/~jdrosen PHONE: (973) 952-5000
http://www.dynamicsoft.com
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