The route set cannot be changed mid dialog. Regarding the endpoint detecting the crash of an intermediate proxy,there is a periodic session refresh mechanism available in SIP which the endpoint must support.
This mechanism is implemented by examining the Session-Expires and Min-SE headers. Conversely if a backup proxy takes over the crashed one, then both proxies (Active-Stabdby) must support Virtual IP failover for implementing this fault tolerance use case. On Jan 3, 2011 8:59 PM, "Worley, Dale R (Dale)" <[email protected]> wrote: ________________________________________ From: [email protected] [[email protected]] On Behalf Of Avshalom Houri [[email protected]] Assume that the first SIP proxy that is part of the route set (in SIP outbound) crashes and immedia... ________________________________________ As you phrase the question, the *dialog* cannot be kept alive if the connection in question is lost because the route set cannot be changed. Dale _______________________________________________ Sip mailing list https://www.ietf.org/mailman/listinfo/sip This list is essentially closed and only used for finishing old business. Use [email protected] for questions on how to develop a SIP implementation. Use [email protected] for new developments on the application of sip. Use [email protected] for issues related to maintenance of the core SIP specifications.
_______________________________________________ Sip mailing list https://www.ietf.org/mailman/listinfo/sip This list is essentially closed and only used for finishing old business. Use [email protected] for questions on how to develop a SIP implementation. Use [email protected] for new developments on the application of sip. Use [email protected] for issues related to maintenance of the core SIP specifications.
