Your understanding is correct for rfc2543 but not rfc3261. As you noticed, rfc3261 doesn't always use the same retry rules over both reliable and non reliable transports. Although the rfc3261 appendix timer table can be misleading (especially concerning Timer G), it does provide a good summation and reference for the letter timers. Draft-ietf-sipcore-invfix introduces more letter timers.
> -----Original Message----- > From: [email protected] [mailto:sip- > [email protected]] On Behalf Of Aaron Clauson > Sent: Saturday, June 19, 2010 7:03 AM > To: [email protected] > Subject: [Sip-implementors] Retransmits on reliable transports? > > I was of the understanding that requests and responses should be > re-transmitted irrespective of the transport reliability in case of > unreliable hops on the route. However I had reason to question that > understanding and upon checking the RFC I'm now not sure what the > correct > behaviour is? _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
