All things related to multicast

[Philip Pishioneri <>]

Bill Owens wrote:

> Columbia is setting up to be a participation site for the virtual 
> member meeting, and is sending an MPEG-1 stream from their location 
> with IP/TV. At present it doesn't seem to be getting out. Can anyone 
> see either the announcement or the content? 


I see the announcement, but no content.  My direct peering with Columbia 
doesn't show the source (128.59.33.212?):

> net3>sh ip msdp sa-cache 14
> MSDP Source-Active Cache - 7136 entries
> (128.59.31.24, 224.0.1.84), RP 128.59.0.15, MBGP/AS 14, 5d04h/00:05:54
> (128.59.31.169, 224.2.127.254), RP 128.59.0.15, MBGP/AS 14, 4d10h/00:05:54
> (128.59.31.169, 224.2.142.155), RP 128.59.0.15, MBGP/AS 14, 3w2d/00:05:54
> (128.59.31.169, 224.2.153.71), RP 128.59.0.15, MBGP/AS 14, 3w2d/00:05:54
> (128.59.39.163, 224.2.153.245), RP 128.59.0.15, MBGP/AS 14, 
> 02:24:14/00:05:54
> (128.59.39.163, 224.2.183.43), RP 128.59.0.15, MBGP/AS 14, 
> 02:24:14/00:05:54
> (128.59.39.163, 224.2.186.45), RP 128.59.0.15, MBGP/AS 14, 
> 05:57:34/00:05:54
> (128.59.96.18, 224.2.198.93), RP 128.59.0.15, MBGP/AS 14, 4w3d/00:05:54
> (128.59.39.163, 224.2.211.53), RP 128.59.0.15, MBGP/AS 14, 
> 05:57:34/00:05:54
> (128.59.96.18, 224.2.242.197), RP 128.59.0.15, MBGP/AS 14, 4w3d/00:05:54
> (128.59.204.67, 225.1.2.3), RP 128.59.0.15, MBGP/AS 14, 05:38:42/00:05:54
> (128.59.204.83, 225.1.2.3), RP 128.59.0.15, MBGP/AS 14, 00:32:29/00:05:54
> (128.59.204.87, 225.1.2.3), RP 128.59.0.15, MBGP/AS 14, 02:38:04/00:05:54
> (128.59.204.106, 225.1.2.3), RP 128.59.0.15, MBGP/AS 14, 01:17:16/00:05:54
> (128.59.48.36, 233.0.32.34), RP 128.59.0.15, MBGP/AS 14, 1d07h/00:05:54

[though it does show one host from Columbia on the video group 
224.2.211.53 ]

-Phil