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Bronze

two RP addresses?

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

10 REPLIES
Hall of Fame Super Blue

Re: two RP addresses?

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

Bronze

Re: two RP addresses?

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.

Hall of Fame Super Blue

Re: two RP addresses?

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

Bronze

Re: two RP addresses?

Thanks. This is going tough to accomplish because I have multiple mcast groups (see attached). And, I am looking to add 224.1.2.1 to 224.1.2.195 in addition to what is in the attached file.

Bronze

Re: two RP addresses?

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,

Hall of Fame Super Blue

Re: two RP addresses?

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

Bronze

Re: two RP addresses?

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

Cisco Employee

Re: two RP addresses?

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,

Harold Ritter
Sr. Technical Leader
CCIE 4168 (R&S, SP)
harold@cisco.com
México móvil: +52 1 55 8312 4915
Cisco México 
Paseo de la Reforma 222 Piso 19
Cuauhtémoc, Juárez
Ciudad de México, 06600
México
Bronze

Re: two RP addresses?

No, we actually want to get mcast (different groups) from different rp addresses.

Cisco Employee

Re: two RP addresses?

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,

Harold Ritter
Sr. Technical Leader
CCIE 4168 (R&S, SP)
harold@cisco.com
México móvil: +52 1 55 8312 4915
Cisco México 
Paseo de la Reforma 222 Piso 19
Cuauhtémoc, Juárez
Ciudad de México, 06600
México
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