From: midatlanticnet@gmail.com
Date: Sat Sep 16 2006 - 00:10:23 ART
Group,
Here is a multicast issue I am having. I cannot figure out what is causeing this behavior and therefore cannot figure out how to fix it. Here is the topology:
R5 (Frame hub and Multicast RP)
/ \
frame/ \frame
/ \
R1 R2---ETH----R3
R5 is the RP for group 224.1.1.1 and 224.2.2.2. I have R5 configure for the mapping agent also. PIM Sparse mode only is used on the appropriate interfaces of all routers. I am using AutoRP on all routers. Lo0 on r1 is configured with the igmp join command. I can ping 224.1.1.1 and 224.2.2.2 from all routers.
Now here is the issue:
When I ping 224.1.1.1 or 224.2.2.2 from r2, I see the (S,G) in the mroute table of r5 as (1.1.125.2, 224.1.1.1) and the outbound interface as serial 0/2. When I ping 224.1.1.1 from r3, I see the (S,G) in the mroute table of r5 as (1.1.62.8, 224.1.1.1) and the outbound interface as serial 0/2.
But, even though I can ping from r2 or r3...i can never ping at the same time. When I send 500 pings from r2 to 224.1.1.1 first, I see pings from r3 with an outbound interface as null on r5. If I stop the pings from r2, I will see the outbound interface for the pings from r3 change to serial 0/2. If I start the pings from r2 back up, the outbound interface on r5 for that new ping will be null.
Why is this happening and how do I fix it?
-Broadway
This archive was generated by hypermail 2.1.4 : Sun Oct 01 2006 - 16:55:40 ART