Hi, all In Internet-Draft, SCTP as a Transport for SIP, draft-ietf-sip-sctp-06.txt, there is a paragraph, "SIP transactions need to be mapped into SCTP streams in a way that avoids Head Of the Line (HOL) blocking. Among all the different ways of performing this mapping that fulfil this requirement, we have chosen the simplest one; a SIP entity SHOULD send every SIP message (request or response) over stream zero with the unordered flag set. On the receiving side, a SIP entity MUST be ready to receive SIP messages over any stream."
Does anyone know why the draft requires "a SIP entity SHOULD send every SIP message (request or response) over stream zero with the unordered flag set."? My understanding is we should set one SIP call into one SCTP stream. If the number of SIP calls is more than the number of streams in the SCTP, multiple calls can be in one stream with unorded flag set. So I don't understand why there is such a requirement in the draft. Waiting for your reply. Regards Leslie ( Wang Qi ) _______________________________________________ Sip-implementors mailing list [email protected] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
