Deployment Guide

Important Point to Remember
If you use a Loopback interface with a /32 mask as the RP, you must enable PIM Sparse-mode on the interface.
Conguring PIM-SM
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
Example of Viewing PIM-SM Interfaces
Example of Viewing PIM Neighbors
Example of Viewing the PIM Multicast Routing Table
To display which interfaces are enabled with PIM-SM, use the show ip pim interface command from EXEC Privilege mode.
Dell#show ip pim interface
Address Interface VIFindex Ver/ Nbr Query DR DR
Mode Count Intvl Prio
189.87.5.6 Gi 4/11 0x2 v2/S 1 30 1 127.87.5.6
189.87.3.2 Gi 4/12 0x3 v2/S 1 30 1 127.87.3.5
189.87.31.6 Gi 7/11 0x0 v2/S 0 30 1 127.87.31.6
189.87.50.6 Gi 7/13 0x4 v2/S 1 30 1 127.87.50.6
Dell#
PIM Sparse-Mode (PIM-SM)
601