Re: [Sip] Changing route set in SIP outbound

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)" <dworley@avaya.com> wrote:

________________________________________
From: sip-bounces@ietf.org [sip-bounces@ietf.org] On Behalf Of Avshalom
Houri [AVSHALOM@il.ibm.com]

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
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