I don't understand Juha's argument about proxies "knowing things".
If a UA does not register an outbound flow via a certain proxy that proxy doesn't have to know anything about other proxies, because no call to/from the UA will ever go through that proxy. Regards, Christer -----Original Message----- From: Juha Heinanen [mailto:[EMAIL PROTECTED] Sent: 8. toukokuuta 2008 21:20 To: Hadriel Kaplan Cc: Francois Audet; [email protected]; Christer Holmberg; [EMAIL PROTECTED]; [EMAIL PROTECTED] Subject: RE: [Sip] draft-ietf-sip-outbound Hadriel Kaplan writes: > First you argue to let the UA's decide what's best for them, and now > you're saying the proxy needs to trust/know that each UA registers > with every proxy. Why is that? How does it change the behavior of > the proxy? if every proxy knows that every UA always registers with every proxy in the set, then implementing the proxy set becomes very simple. if the proxy set cannot trust that every ob UA registers with every proxy in the set, then the proxy set needs to implement various complicated mechanisms to ensure that every proxy in the set is aware of each registration and is able to reach every UA even when the UA may be behind NAT. you will find lots of discussions about the problems on various practical sip related mailing lists. -- juha _______________________________________________ Sip mailing list https://www.ietf.org/mailman/listinfo/sip This list is for NEW development of the core SIP Protocol Use [EMAIL PROTECTED] for questions on current sip Use [EMAIL PROTECTED] for new developments on the application of sip
