All things related to multicast

["Kevin C. Almeroth" <>]

Hard to say...  since one multicast flow across a router can support
1 user, 1000 users, or a million users, one cannot really rely on
what a router sees.

Once upon a time we could collect RTCP traffic to count/estimate
the number of actual receivers but that has become essentially
unreliable.

Maybe you could look instead at how often a particular group
is forwarded across a router, i.e. how often there is at least
one downstream receiver.  But, these stats aren't currently
be collected.

-Kevin

On Thu, 4 Sep 2003, Jon Zeeff wrote:

>>
>>How can I find out what are the most popular multicast uses on the 
>>Internet? Or perhaps on Abilene (where netflow data is available).
>>
>>
>>For example, I assume that some of the UofOregon traffic is popular, but I 
>>don't know for sure.
>>