[AG-TECH] Multicast beacon questions

[Ivan R. Judson]

hey,

a pointer that might be helpful is:

http://www-mice.cs.ucl.ac.uk/multimedia/software/rqm/

it's a rtp/rtcp based monitor of a group.  This would be pointed *at* the
audio or video group and tell you information on that group.  I believe the
statistics are less network based and more application based, but that might
not be a bad thing.

It's probably not a replacement for the beacon, but it might be another
level of information that's helpful and less taxing.

--Ivan

> -----Original Message-----
> From: owner-ag-tech at mcs.anl.gov [mailto:owner-ag-tech at mcs.anl.gov]On
> Behalf Of Chris Greenhalgh
> Sent: Friday, October 26, 2001 3:07 AM
> To: Tony Rimovsky
> Cc: ag-tech at mcs.anl.gov; Chris Greenhalgh
> Subject: Re: [AG-TECH] Multicast beacon questions
>
>
> > I understand your concern about beacon scalability.  We will be
> > examining mechanisms such as using RTP data in order to try to lower
> > the overhead of using the beacon in large communities.
>
> I gather there are at least three candidate mechanisms for RTCP
> aggregate bandwidth management (scaling each sender's rate so
> that the total of all senders is bounded; in RTP/RTCP this is to some
> fraction of the total data traffic). This would seem an obvious place to
> look, as long as noone is relying on '10pps' as a magic number
>
> Chris Greenhalgh
>
>