All things related to multicast

[Mark Boolootian <>]

Folks,

I have a bit of a multicast problem and could use some advice.

I've got a project involving a VBrick 4300 that will eventually multicast 
MPEG-2 video from an ROV crawling around the floor of the Monterey Bay,
assuming the microwave shot across the Monterey Bay works.

Currently, the VBrick is sourcing video to 233.22.107.1 and issuing SAP
announcements.  Routers listening for sdr (session name is "UCSC Test")
can see the session, but the announcement doesn't show up in the sdr 
application.  I also could not see the announcement using an iptv client.
I had hoped to use the iptv client to look at the VBrick stream, but as far 
as I can tell, iptv will only let me fire up sessions it learns from content 
managers.  I can't tell iptv to look at a particular group/port.  

Why aren't the SAP announcements from the VBrick showing up in
sdr or the IP/TV content manager iptvhost.uoregon.edu?   Are there 
nuances to the SAP configuration on the VBrick that might be responsible
for this?  

thanks,
mb
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Mark Boolootian
UC Santa Cruz