All things related to multicast

["Marshall Eubanks" <>]

Hello;

The only sources I know of are
at U Oregon. There are probably others.

(Of course, all you have to do is go to the source web page ! That's what I 
am always
told every time I advocate a push channel for SSM sources. A brief google 
search does
not find any, alas.)

I do, however, have a suggestion for _measuring_ SSM use. Let's ask Stanislav
Shalunov to add it the weekly netflows reports

http://netflow.internet2.edu/weekly/

It already keeps track of the number of multicast packets; all he has to do
is add  a separate catagory for multicasts in the 232/8 address range.

By starting now, when SSM usage is still pretty small, we can at least keep
track of SSM usage on the I2.

Marshall

On Fri, 16 Apr 2004 11:07:25 -0400
 Alan Crosswell 
<>
 wrote:
> I would settle for a directory of test SSM sources so I can test my SSM 
> deployment which so far has been a big failure due to Cisco CGMP switches.
> /a
> 
> Kevin C. Almeroth wrote:
> > 
> > On Fri, 16 Apr 2004, Hitoshi Asaeda wrote:
> > 
> > 
> >>>Does anyone know papaers/links/presentations describing "how SSM is
> >>>deployed in the Internet", including the measurement of the num of SSM
> >>>services/traffic etc.?
> >>>Statistical issue would be great.
> > 
> > 
> > I don't know of anything...  it would be tough to measure...  in my
> > mind, SSM is defined as edge routers speaking IGMPv3 and hosts speaking
> > IGMPv3.  Sort of hard to measure unless one has a collection point in
> > every LAN.
> > 
> > If anyone has any good ideas on how to measure this, I'm up for it.
> > For example, collect stats from SSM sources on who actually joins,
> > but this has its weaknesses too.
> > 
> > -Kevin
>