Users Guide

Table Of Contents
Example
OS10# show ip pim tib
PIM Multicast Routing Table
Flags: S - Sparse, C - Connected, L - Local, P - Pruned,
R - RP-bit set, F - Register Flag, T - SPT-bit set, J - Join SPT,
K - Ack-Pending state
Timers: Uptime/Expires
Interface state: Interface, next-Hop, State/Mode
(*, 225.1.1.1), uptime 13:08:24, expires 00:00:12, RP 171.1.1.1, flags: SCJ
Incoming interface: vlan105, RPF neighbor 3.1.1.1
Outgoing interface list:
vlan121 Forward/Sparse 13:07:53/Never
(101.1.1.10, 225.1.1.1), uptime 13:07:51, expires 00:06:09, flags: T
Incoming interface: vlan103, RPF neighbor 2.1.1.1
Outgoing interface list:
vlan121 Forward/Sparse 13:07:50/Never
Supported Releases 10.4.3.0 or later
show ip rpf
Displays reverse path forwarding (RPF) information.
Syntax
show ip rpf [vrf vrf-name] [summary]
Parameters
vrf vrf-name—Enter the keyword vrf, then the name of the VRF.
summary—RPF summary.
Default None
Command Mode EXEC
Usage Information PIM uses unicast routing to check the multicast source reachability. PIM examines the distance of each route. The
route with the shortest distance is the one that PIM selects for reachability.
Example
OS10# show ip rpf
RPF information for 101.1.1.10
RPF interface: vlan103
RPF neighbor: 2.1.1.1
RPF route/mask: 101.1.1.0/255.255.255.0
RPF type: Unicast
RPF information for 171.1.1.1
RPF interface: vlan105
RPF neighbor: 3.1.1.1
RPF route/mask: 171.1.1.0/255.255.255.0
RPF type: Unicast
Supported Releases 10.4.3.0 or later
PIM-SM sample conguration
This section describes how to enable PIM-SM in the FHR, RP, and LHR nodes using the topology show in the following illustration.
To enable PIM-SM, perform the following congurations on each of the nodes (FHR, RP, and LHR):
Enable multicast routing on all the nodes using the ip multicast-routing command
Multicast
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