NOTIFY, for xml presence buddy-lists apparently, and MESSAGE with instant-message picture bodies. 1MB is the unusual case, but happens, whereas greater than 64KB is more common and also a problem (tough for a proxy to forward it over UDP).
-hadriel > -----Original Message----- > From: Adam Roach [mailto:[EMAIL PROTECTED] > Sent: Thursday, March 13, 2008 9:45 AM > To: Hadriel Kaplan > Cc: [email protected] List > Subject: Re: [Sip] Comment/question on draft-ietf-sip-body-handling-01.txt > > [private response] > > What? Without naming names, what methods are people attaching 1MB+ > bodies to? And why? > > /a > > On 3/13/08 9:45 AM, Hadriel Kaplan wrote: > > At one of the recent IETF's, there was a session on SIP interop issues. > One of the issues we've found is different expectations about SIP header > length and body size support. We have found some implementations sending > rather large bodies, where "rather large" is greater than 1MB. Ignoring > the reasons some middleboxes have policies to block such large bodies, the > reason they have such policies is because lots of devices simply can't > handle them. There are other issues with it too, such as head-of-line > blocking and inability to send it on over UDP. > > > > So my question is, is it appropriate for a draft such as draft-ietf-sip- > body-handling-01.txt to potentially define a maximum, or at least guidance > about it? It doesn't have to say one cannot send something larger - just > say that receivers should only be expected to accept up to X byte large > bodies. I know this is an unpleasant topic, but it's causing interop > issues which are causing certain SIP uses to fail in the real world. > > > > -hadriel > > _______________________________________________ > > 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 > > _______________________________________________ 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
