Setup Guide

Conguring PIM-SSM
Conguring PIM-SM is a three-step process.
1 Enable multicast routing (refer to the following step).
2 Select a rendezvous point.
3 Enable PIM-SM on an interface.
Enable multicast routing.
CONFIGURATION mode
ip multicast-routing
Related Conguration Tasks
The following are related PIM-SM conguration tasks.
• Conguring S,G Expiry Timers
• Conguring a Static Rendezvous Point
• Conguring a Designated Router
• Creating Multicast Boundaries and Domains
Enable PIM-SM
You must enable PIM-SM on each participating interface.
1 Enable multicast routing on the system.
CONFIGURATION mode
ip multicast-routing
2 Enable PIM-Sparse mode.
INTERFACE mode
ip pim sparse-mode
Examples of Viewing PIM-SM Information
To display which interfaces are enabled with PIM-SM, use the show ip pim interface command from EXEC Privilege mode.
show ip pim interface
Address Interface Ver/ Nbr Query DR DR
Mode Count Intvl Prio
1.1.1.1 Te 1/0 v2/S 0 30 1 1.1.1.1
2.1.1.1 Te 11/0 v2/S 0 30 1 2.1.1.1
5.1.1.1 Vl 10 v2/S 0 30 1 5.1.1.1
6.1.1.1 Vl 20 v2/S 0 30 1 6.1.1.1
NOTE
: You can inuence the selection of the Rendezvous Point by enabling PIM-Sparse mode on a Loopback interface and
assigning a low IP address.
To display PIM neighbors for each interface, use the show ip pim neighbor command EXEC Privilege mode.
Dell#show ip pim neighbor
Neighbor Interface Uptime/Expires Ver DR
Address Prio/Mode
127.87.5.5 Te 0/11 01:44:59/00:01:16 v2 1 / S
127.87.3.5 Te 0/12 01:45:00/00:01:16 v2 1 / DR
PIM Sparse-Mode (PIM-SM)
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