All things related to multicast

[Alan Crosswell <>]

I see state but no traffic:

wat-edge-1>sho ip msdp sa-cache 233.18.159.50
MSDP Source-Active Cache - 1 entries for 233.18.159.50
(203.159.28.31, 233.18.159.50), RP 203.159.128.5, MBGP/AS 4767, 
2d07h/00:05:46
wat-edge-1>sho ip mroute 233.18.159.50
IP Multicast Routing Table
Flags: D - Dense, S - Sparse, s - SSM Group, C - Connected, L - Local,
       P - Pruned, R - RP-bit set, F - Register flag, T - SPT-bit set,
       J - Join SPT, M - MSDP created entry, X - Proxy Join Timer Running
       A - Candidate for MSDP Advertisement, U - URD,
       I - Received Source Specific Host Report
Outgoing interface flags: H - Hardware switched
Timers: Uptime/Expires
Interface state: Interface, Next-Hop or VCD, State/Mode

(*, 233.18.159.50), 00:04:35/stopped, RP 128.59.0.15, flags: SJC
  Incoming interface: Null, RPF nbr 0.0.0.0
  Outgoing interface list:
    Vlan39, Forward/Sparse, 00:00:05/00:02:54

(203.159.28.31, 233.18.159.50), 00:00:05/00:02:54, flags: M
  Incoming interface: Vlan501, RPF nbr 128.59.1.6, Mbgp
  Outgoing interface list:
    Vlan39, Forward/Sparse, 00:00:05/00:02:54


Group: 233.18.159.50, Source count: 1, Packets forwarded: 0
  RP-tree: Forwarding: 0/0/0/0, Other: 0/0/0
  Source: 203.159.28.31/32, Forwarding: 0/0/0/0, Other: 0/0/0

wat-edge-1>sho ip mroute 233.18.159.50  count
IP Multicast Statistics
1323 routes using 1319242 bytes of memory
51 groups, 24.94 average sources per group
Forwarding Counts: Pkt Count/Pkts per second/Avg Pkt Size/Kilobits per 
second
Other counts: Total/RPF failed/Other drops(OIF-null, rate-limit etc)

Group: 233.18.159.50, Source count: 1, Packets forwarded: 0
  RP-tree: Forwarding: 0/0/0/0, Other: 0/0/0
  Source: 203.159.28.31/32, Forwarding: 0/0/0/0, Other: 0/0/0

Patcharee Basu wrote:
> Dear Internet2 Folks,
>
> Asian Institute of Technology(AIT), Thailand, has just finished multicast
> configuration. I would like to ask if some friends in the WG can help check
> if you could get a multicast stream from AIT,
> http://www.mmserv.ait.ac.th/MPU-web/liveconf/MPUMediaStation.asx,
> It's a 256-kbps window media stream, multicast group = 233.18.159.50 port
> 15000 , source addr = 203.159.28.31 port 1035.
>
> The current status of multicast testing with Internet2.
>
> Internet2 -> AIT:
> AIT can receive multicast stream from Internet2, multicasttech.com,
> www.americafree.tv.
>
> AIT -> Internet2:
> An Abilene network engineer has helped me checking. The traffics flows all
> the way from source to his campus. But at his campus router, there was a
> source tree state but no traffic flowing. We still don't know yet what is
> the problem. -- Therefore, I would like to know if there is the same problem
> on other campus so I write here if someone could help joining the stream or
> telling us what could be a problem.
>
> Thank you very very much.
>
> Best regards,
> Patcharee