Ip multicast routing table – CANOGA PERKINS CanogaOS Configuration Guide User Manual
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CanogaOS Configuration Guide
Proprietary & Confidential Canoga Perkins Metro Ethernet Switches
Page 183 of 350
Address Interface VIFindex Ver/ Nbr DR DR HoldTime
Mode Count Prior
192.168.47.1 eth-0-4 1 v2/S 0 1 192.168.47.1 105
IP multicast routing table
Note: Multicast Routing Table displays of an RP router are different from other routers.
1. The show ip pim sparse-mode mroute command displays the IP multicast routing table. In this table:
RPF nbr
Displays the unicast next-hop to reach RP.
RPF idx
Displays the incoming interface for this (*, G) state.
RP
Displays the IP address for the RP router
The leading dots ....
Stand for VIF index
Router_E# show ip pim sparse-mode mroute
IP Multicast Routing Table
(*,*,RP) Entries: 0
(*,G) Entries: 1
(S,G) Entries: 0
(S,G,rpt) Entries: 0
(*, 224.0.1.3)
RP: 10.10.1.5
RPF nbr: 172.16.1.2
RPF idx: eth-0-2
Upstream State: JOINED
Local ................................
Joined j...............................
Asserted ................................
Outgoing o...............................
At Router_E, eth-0-2 is the incoming interface of the (*, G) entry, and eth-0-1 is on the outgoing
interface list of the (*,G) entry. This means that there is a group member through eth-0-1, and RP
is reachable through eth-0-2.
The 0 position on this 32-bit index is for eth-0-1 (as illustrated in the interface display above).
The j on the 0 index indicates that the Join has come from eth-0-1.
2. Since Router_C is the RP, and the root of this multicast tree, the show ip pim sparse-mode mroute
command on Router_C shows RPF nbr as 0.0.0.0 and RPF idx as none.