The media-policy-dataset provides 3 different bandwidth limitations: max-bw max-session-bw max-stream-bw Comparing the description of these (section 7.3 et seq.) with the description of the b= line in SDP (RFC 4566 section 5.8) turns up a lot of ambiguity in the definitions. It seems to me to be clear that the max-stream-bw number corresponds to the "b=AS:..." line in an SDP media description -- the bandwidth used by one direction of one media stream. The max-session-bw seems to correspond to the "b=AS:..." line in the *session* description, the total bandwidth used (in one direction) by the whole session. The max-bw number is less clear. It seems to be intended to limit the total bandwidth used by an agent (across all of the sessions it participates in). As such, it can't be translated to an SDP attribute. Conversely, the "b=CT:..." line in an SDP session description seems to be intended to describe the total bandwidth used by a "conference" (whatever that is). It's not clear what the significance of that is exactly, since the agent in question may not be the conference focus, and indeed, the session may not be part of a "conference". Thoughts? Dale _______________________________________________ Sipping mailing list https://www.ietf.org/mailman/listinfo/sipping This list is for NEW development of the application of SIP Use sip-implementors@xxxxxxxxxxxxxxx for questions on current sip Use sip@xxxxxxxx for new developments of core SIP
