Re: IPCP option for SIP server
James Carlson <[email protected]>
| Newsgroups | gmane.ietf.pppext |
|---|---|
| Message-ID | <[email protected]> |
Ashutosh Dutta writes: > Just to reiterate, there are cases where each PDSN may have a > different outbound proxy associated with it. Thus as the mobile > mobile moves between PDSNs within the same DNS domain or AAA > domain , it may end up getting a new outbound proxy or P-CSCF > (in IMS language) during each transition. I agree that overconstrained problems are difficult to solve. That doesn't mean that adding options to PPP is really the right answer. > The point I was > trying to make was that timing associated with outbound proxy > configuration should not be neglected and should be considered > during any handover optimization. Of course there are many ways > it can be done, such as make-before-break as you have > indicated. I was hoping if it can as well be done during the > PPP negotiation phase itself, but DHCP appears to be cleaner > solution at the moment, albeit an extra pair of message > exchange. I agree that performance is important, but I wouldn't suggest a micro- optimization such as this (moving an option from one protocol to another) unless we've got hard data showing that this is an important consideration (compared to all the other issues; there's no need to optimize away 1% of the problem) and that there aren't more global optimizations possible. Such as, for instance, fixing the deployment so that these SIP servers are accessible from adjacent cells. -- James Carlson, KISS Network <[email protected]> Sun Microsystems / 1 Network Drive 71.232W Vox +1 781 442 2084 MS UBUR02-212 / Burlington MA 01803-2757 42.496N Fax +1 781 442 1677 _______________________________________________ Pppext mailing list [email protected] https://www1.ietf.org/mailman/listinfo/pppext