All things related to multicast

[Dan Oachs <>]

The easiest thing we have found so far is to query all the switches  and 
ask them what multicast  groups are in use.  We happen to have HP 
switches in all our buildings and grab the multicast info from SNMP but 
I assume any managed switch could do the same.  We only get the info 
every 5 minutes so it is not super accurate, but does help us learn a 
lot about hour our IPTV system is being used.

   Thanks,
      Dan Oachs
      Gustavus Adolphus College

Anthony DeNardo III wrote:
> Here at Colorado State University, we have replace our legacy cable tv
> infrastructure with a Multicast IP TV system.  We take digital content,
> and multicast to administratively scoped group addresses.  With several
> thousand student residents on campus, is there an effective way for me
> to determine how many subscribers there are to a given multicast group
> at any given time?
>
> My end goal would be to create a dashboard, using Cricket
> (cricket.sourceforge.net) that would display all channels, and current
> subscribers.
>
> Our architecture is pretty simple, and only involves one Cisco 6509 router.
>
>
>         MIPTV CLUSTER ---->  Cisco6509 --->  building switches
>
>
> Each building is a residence hall, and there are about 15-20 of them.
>
> Thanks in advance!
>
>
> ad3
>
>

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