The client can take several minutes to notice (it seems to take between 3 minutes and 7 minutes depending on the OS) that a TCP connection has died.
This leaves a substantial window that requests to the client are undeliverable.
Re-routing in-dialog requests when the flow fails solves this problem.
Regards,
Peter
Peter Dunkley writes:
By enabling the route-set to change you can failover to another flow within dialog. This gives you protection against sessions terminating because the connection between the client and one of the edge proxies dies.
If you cannot change the route-set and one of your connections to the edge proxy fails you will never be able to route another request on that dialog.
yes you can if the edge proxy is still alive and client establishes a new connection to it (as it according to outbound rfc should do).
-- juha
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