SHOW IP PIM RP MAPPING command

[kfarrington]

I have an mcast query.

We run PIM-SM using BSRs.

There are about 23 mcast groups and only 7 are active.

Every 60 seconds, the group to RP mappings are flooded through the network hop-by-hop via a PIM message type 4 packet (bootstrap).

In this packet there are what appears to be the active mcast groups in the body of the packets.

This co-insides with the output of the "show ip pim rp" command.

When you do a "show ip pim rp mapping" command you get the following, which indicates (via the expiry timer) that you get an update of all permitted mcast groups (via some update packet - maybe the bootstrap packet?), but I don't see any reference to all of the 23 mcast groups in the bootstrap packet, only the 7 active mcast groups

Can anyone help?

[ciscomoderator]

Since there has been no response to your post, it appears to be either too complex or too rare an issue for other forum members to assist you. If you don't get a suitable response to your post, you may wish to review our resources at the online Technical Assistance Center (http://www.cisco.com/tac) or speak with a TAC engineer. You can open a TAC case online at http://www.cisco.com/tac/caseopen

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Thank you for posting.