All things related to multicast

["Marshall Eubanks" <>]

On Mon, 11 Feb 2002 11:35:56 -0800
 Bill Fenner 
<>
 wrote:
> 
> >OK, so if I'm not seeing all sources in my sa-cache,
> where does that point?
> 
> MSDP doesn't work, and since nobody implements the
> version of the protocol
> that we think would work, nobody knows why it doesn't
> work.
> 
>   Bill (oh, wait, you wanted an optimistic answer?)
> 

I would look in my router logs for RPF failures.
MSDP RPF failures IMHO are the most common cause
of mysterious multicast problems.

We have had audience at columbia, and I have seen multicasts
from there, so it _can_ work.

This is, as usual, a case where having an NLANR beacon would
help : http://beaconserver.accessgrid.org:9999/ .

BTW, our SAP is 

n=216.177.62.18 216.177.62.18 1013452255 224.2.127.254 9875
255 trusted none none  noauth noenc notset notset 
k=
v=0
o=- 0080194001938448768 1 IN IP4 216.177.62.18
s=FutureOfMusic 2002
i=VBrick Streaming Video
e=ON-THE-I.tv 
<
 >
p=ON-THE-I.tv <(703)293-9601 >
t=0 0
a=type:broadcast
a=x-iptv-type:scheduled
m=video 7010 RTP/AVP 32
c=IN IP4 233.64.133.200/255
a=x-iptv-svr:video 216.177.62.18 file 1 loop
m=audio 7012 RTP/AVP 14
c=IN IP4 233.64.133.201/255
a=x-iptv-svr:audio 216.177.62.18 file 1 loop

Regards
Marshall Eubanks