From: Kirby, Ron (Ron.Kirby@xxxxxxxxxxxxx)
Date: Tue May 14 2002 - 10:21:18 GMT-3
Where is your multicast source in reference to your cloud? I found that when r
unning mcaster on a spoke router the other spoke routers did not get the multic
ast traffic. The hub router showed the multicast coming in S0, and it didn't w
ant to send the traffic back out the same interface. When I put in NBMA mode, m
y source and forward interface was the same, and the other spokes got the traff
ic.
Ron
-----Original Message-----
From: Sam.MicroGate@usa.telekom.de [mailto:Sam.MicroGate@usa.telekom.de]
Sent: Tuesday, May 14, 2002 7:57 AM
To: ccielab@groupstudy.com
Subject: When should I use ip pim nbma-mode?
Hello everyone
I have a frame relay hop and spoke topology. The hop is multipoint and the
three spokes are physical interfaces. My IGP is OSPF. Everything is working
fine. I configured the hop as static rp using the command ip pim rp-address.
I issued the same command in all the routers in the internetwork. Still
everything work fine. I ping all my multicast sources and my multicast
routes show correctly in all the routers. Here is my question, When should I
use ip pim nbma-mode? I read in one of the posting that I must use this
command in multipoint interfaces for the multicast to work correctly in the
frame relay environment. I did not use ip pim nbma-mode in my multipoint
interface and still working. Do I really need it or I did something wrong.
Thanks for your help.
Sam
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