10 Feb
1998
10 Feb
'98
4:07 p.m.
On Tue, 10 Feb 1998, Jeffrey Payne wrote: ==>I heard lots of questions on multicast today...here's how it works with ==>RealMedia. If you have decent MBONE connectivity, you'll negotiate ==>multicast when you connect to the audio or video stream. If you don't, the ==>client falls back to unicast UDP mode. If even that fails (say you're ==>behind a firewall), it rolls to TCP mode, and will ultimately resort to HTTP ==>"cloaking" if nothing else works. Users can override the automated ==>fall-back through the preferences dialog if there's a strong preference for ==>a particular mode. The goal here would be to allow other clients to see the session via traditional multicast tools (i.e., h.261 video and some form of RTP audio). /cah