All things related to multicast

["David Farmer" <>]

We the Nothern Lights GigaPOP are having some multicast problems, we 
changed to a Juniper M10 and have had a few problems, mostly between the 
chair and the keyboard.  Also I beleive that MNSCU may be expanding 
Multicast on their network, but may have not started announcing Multicast 
NLRI to us.  I have a meeting with them later this morning and will check on 
this with them on this.

On 14 Aug 2002 Marshall Eubanks wrote:

> Yesterday, we got receiver reports from a receiver at
> 199.17.82.171, which it turns out is from
> mnstate.edu, Moorhead State, which is
> part of the 
> Minnesota State University System (and near to Fargo, ND).
> 
> I do not _know_ if they received our broadcasts (there is no packet
> loss info, and some receivers send partial RR's when they start even
> if they do not receive), but I received this RTCP via multicast.
> 
> I do not have MBGP routing to 199.17.82.171, and this address has
> never (well, at least this month) been present in our 6 hour multicast
> monitoring program.
> 
> NorduNet - 
> http://www.nordu.net/connectivity/looking-glass/lg.cgi
> does not have MBGP routing to 199.17.82.171, neither
> do some randomly selected Abilene core routers.
> 
> So, how did I get multicast packets from there ?
> Was this some test, or does the Minnesota State University System  and
> the University of Minnesota (AS 57) have MBGP messed up ?
> 
> Marshall
> 
> P.S. We have been asked about setting up a multicast operational
> mailing list for questions such as this, and for Multicast NOC type
> questions for the I2 and the commodity Internet in general; do list
> members here think that this is a good idea ?
> 
> 


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