What's happening on the line if there is nothing?

Brian O'Shea (boshea@wpine.com)
Fri, 17 Nov 1995 09:27:27 -0500

>I noticed an interesting quirk with the 4.00 reflector (I am using the
>SunOS version).
>Let's say you have reflector A BBCing video to reflector B. If one
>client sends video to reflector A, it does not get sent to reflector B
>unless there is another client actively viewing the video on reflector
>Perhaps in the next version of the reflector, BCCed video will go out
>regardless of the demand for video on the originating reflector.
>I'm using Mac 0.83b3 clients for the most part, but I am naively assuming
>it is a reflector problem and not a client problem.
The problem is that a CU-Seeme client won't send unless someone is watching.
The nature of BCC is such that downstream reflectors don't let the upstream
reflector know that someone is connected. So one client connected to the main
reflector doesn't send his video, even though another client is connected to
the downstream reflector. When a second client connects to the main
reflector, the first client begins sending his video, which is then propogated
downstream to reflector B.

This is taken care of with the -broadcast switch. This will cause the main
reflector to fabricate a fake BROADCAST client that watches any other
connected client. Then when your single client connects, it thinks someone is
watching and starts sending video. The reflector is then able to forward that
downstream to the other reflector.


+ Brian O'Shea White Pine Software +
+ Network/OS Software Engineer 15 Messenger Square +
+ boshea@wpine.com Suite 8A +
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