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Monitoring PIM Group-to-RP Mappings for IPv4
Purpose
Display information about PIM group-to-RP mappings. Specify the address of a group to view PIM group-to-RP mappings for a particular group. Specify the mapping keyword to display all group-to-RP mappings that the router has recorded.
Action
To display information about PIM group-to-RP mappings:
host1:8#show ip pim rp mapping PIM Group-to-RP mapping(s) Group(s) 224.0.0.0/4 RP 122.0.0.1, priority 0, via AutoRP, expiryTime 88 Group(s) 224.0.1.39/32 (negative) RP 122.0.0.1, priority 0, via AutoRP (Negative), expiryTime 88 Group(s) 224.0.1.40/32 (negative) RP 122.0.0.1, priority 0, via AutoRP (Negative), expiryTime 88
host1:8#show ip pim rp mapping PIM Group-to-RP mapping(s) Group(s) 224.0.0.0/4 RP 134.0.0.1, priority 0, via Static, from access-list 1 Group(s) 232.0.0.0/16 RP 134.0.0.1, priority 0, via BSR, expires in 121 seconds
Meaning
Table 36 lists the show ip pim rp command output fields.
Table 36: show ip pim rp Output Fields
Field Name | Field Description |
|---|---|
Group(s) | Prefix of the multicast group |
RP | IP address of RP router for the multicast group |
priority | Priority of the router |
via | Method by which the RP router was assigned: AutoRP, Static RP, or BSR |
expiryTime | Time in seconds at which the RP mapping becomes invalid, unless the mapping agent (access list) reassigns the RP router to this group |
