multicasting.... RP selection

Answered Question
Jul 21st, 2010

Hi !

I would like to know if we have more then one router is annoncing it self as an rp-candidate for the same group of multicast group  which one will be choosen by receiver ?  is the router to which receiver as the lower cost too ?  the source to which have the lower cost to ? higher or lower router IP address within it's annoncement ?

what is the selection process exactly !

thanks a lot !

I have this problem too.
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Correct Answer by Reza Sharifi about 6 years 4 months ago

Hi,

If multiple ip pim rp-address commands are configured, the following rules apply:

Highest RP IP address selected regardless of reachability: If a multicast group is matched by the access list of more than one configured ip pim rp-address command, then the RP for the group is determined by the RP with the highest RP address configured.

HTH

Reza

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Correct Answer
Reza Sharifi Wed, 07/21/2010 - 19:57

Hi,

If multiple ip pim rp-address commands are configured, the following rules apply:

Highest RP IP address selected regardless of reachability: If a multicast group is matched by the access list of more than one configured ip pim rp-address command, then the RP for the group is determined by the RP with the highest RP address configured.

HTH

Reza

Mohamed Sobair Thu, 07/22/2010 - 04:23

As Riza mentioned, the RP with the highest IP address is elected as an RP candidiate for that Group.

Mohamed

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