[avt list bcc'd -- discussion on mmusic]
On Friday, July 8 2005, "Magnus Westerlund" wrote:Can you please remind where and when the decision was taken to not define TCP/TLS/RTP/AVP? All I find is some loose discussion without conclusion about the topic, but nothing I can interpret as an WG consensus on this.
It was at the MMusic meeting in San Diego (August 2004), following my
initial presentation of comedia-tls. Here's the relevant paragraph from the
minutes:
An open issue is that this defines only TCP/TLS, not TCP/TLS/ RTP/AVP.
Similarly, nothing defines TCP/RTP/SAVP. What should be the preferred
way of doing secure connection-oriented RTP? Steve Casner suggested
that it might be appropriate to wait until there is a use case for
SRTP over connection oriented media, rather than trying to specify it
now.
As I recall, Steve's comment got a rough nodding of heads. So I wouldn't
say that a decision was explicitly taken not to define this, so much as that
no decision was taken *to* define it.
I am in favor of defining both TCP/TLS/RTP/AVP and TCP/TLS/RTP/AVPF.
TCP/TLS/RTP/AVP, yes. I'm not sure what the use-case is for
TCP/TLS/RTP/AVPF -- I thought most of the motivation for AVPF was for
bandwidth adaptation and improved delivery reliablity, both of which seem to
be redundant for something transmitted over TCP.
Colin
_______________________________________________ Audio/Video Transport Working Group avt at ietf.org https://www1.ietf.org/mailman/listinfo/avt