04-17-2008 12:50 PM - edited 03-05-2019 10:27 PM
Is it possible to have two RP in one configuration?
ip pim rp-address x.x.x.x
ip pim rp-address y.y.y.y
04-17-2008 01:03 PM
Etienne
Yes you can use multiple rp-address config commands but not for the same group as there is no way of proritizing which rp to use when there are multiple rp's for the same group.
Jon
04-17-2008 01:13 PM
Jon,
I just gave it a shot but no luck. Once I entered the new rp-address, the old one was no longer present in the run config.
04-17-2008 01:23 PM
Etienne
You have to make sure the RP's are for different groups eg. from a 2621XM router
ip pim rp-address 192.168.6.10 2
ip pim rp-address 192.168.5.10 1
!
!
access-list 1 permit 239.10.10.10
access-list 2 permit 239.20.10.10
Jon
04-17-2008 01:31 PM
04-17-2008 01:49 PM
Jon,
Here is what I did...
access-list 1 permit 239.0.0.0 0.255.255.255
access-list 1 permit 231.0.0.0 0.255.255.255
access-list 1 permit 235.0.0.0 0.255.255.255
access-list 1 permit 230.0.0.0 0.255.255.255
access-list 2 permit 224.1.2.0 0.0.0.255
ip pim rp-address 63.211.75.254 2
ip pim rp-address 10.33.63.1 1
I hope this will work.
Thanks,
04-17-2008 01:52 PM
Etienne
Ws just about to post again to tell you that you can use wildcards but you seem have to worked that out yourself.
Let me know if it all works. Thanks for the rating.
Jon
04-18-2008 05:02 AM
Hi Jon,
It seems to be working at least for the old rp-address. I am no seeing mcast group from the new rp address. I am able to ping it but some troubleshooting commands are failing:
NJ00#sh ip rpf 63.211.75.254
RPF information for ? (63.211.75.254) failed, no route exists
NJ00#ping 63.211.75.254
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 63.211.75.254, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/4/9 ms
04-18-2008 07:08 AM
Etienne,
I suppose you wanted to configure two RP addresses for redundancy purposes, right?
If so, you might want to look at configuring anycast RP.
Refer to the following document for more information on anycast RP.
http://www.cisco.com/en/US/docs/ios/solutions_docs/ip_multicast/White_papers/anycast.html#wp1029198
Regards,
04-18-2008 07:14 AM
No, we actually want to get mcast (different groups) from different rp addresses.
04-18-2008 07:43 AM
Etienne,
The fact that the "sh ip rpf" fails but that the ping works is most probably due to the fact that the route to 63.211.75.254 is via an interface that is not configured for PIM.
Regards,
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