Hi There is no recommendation for using exisiting TCP connection for in-dialog Sip requests. As MTU for PRACK/BYE can be smaller ,so can be send over UDP also . But for TLS recommendation is there to reuse same connection ,even for request coming from callee using alias in via .
Regards Ankur Bansal On Fri, Mar 11, 2016 at 10:44 PM, xaled <xa...@web.de> wrote: > Hi, > > > > Consider following scenario - Proxy1 and Proxy2 are edge proxies that are > DNS resolvable from edge.test.com. DNS resolution does some load balancing > and dynamically changes priority of proxy1 and proxy2. > > > > A client originates a session over TCP connection to proxy1 after having it > resolved as top priority outbound proxy from preconfigured edge.test.com > domain. Proxy 1 sends 200 Ok response with following Record-Route header: > > > > Record-Route: <sip:edge.test.com;transport=tcp;lr> > > > > Now client wants to send a reINVITE and instead of reusing the established > TCP connection to proxy1 it resolves edge.test.com over DNS again and this > time receives proxy2 as top priority outbound proxy. Having received proxy2 > with highest priority than proxy1 client sends in-dialog request to proxy2 > instead of reusing established TCP connection to proxy1. > > > > Now is there any recommendation for the preferential use of established TCP > connection to the proxy1 given that it is resolvable from edge.test.com? > > > > Thanks, > > xaled > > > > _______________________________________________ > Sip-implementors mailing list > Sip-implementors@lists.cs.columbia.edu > https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors > _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
