Users Guide

Table Of Contents
Usage
Information
This command displays the following:
S, GDisplays the entry in the multicast PIM database
uptimeDisplays the amount of time the entry has been in the PIM route table
expiresDisplays the amount of time until the entry expires and is removed from the database
RPDisplays the IP address of the RP or source for the entry
Incoming interfaceDisplays the reverse path forwarding (RPF) interface towards the RP/
source
RPF neighborDisplays the next hop IP address from this interface towards the RP/source
Outgoing interface listLists the interfaces that meet one of the following criteria:
a directly connected member of the group
a statically connected member of the group
received an (*, G) or (S, G) join message
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-nameEnter the keyword vrf, then the name of the VRF.
summaryRPF 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
Multicast 1089