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Configuring PIM-SM
Configuring 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 Configuration Tasks
The following are related PIM-SM configuration tasks.
• Configuring S,G Expiry Timers
• Configuring a Static Rendezvous Point
• Configuring 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.
Dell#show ip pim interface
Address Interface VIFindex Ver/ Nbr Query DR DR
Mode Count Intvl Prio
189.87.5.6 Te 0/11 0x2 v2/S 1 30 1 127.87.5.6
189.87.3.2 Te 0/12 0x3 v2/S 1 30 1 127.87.3.5
189.87.31.6 Te 1/11 0x0 v2/S 0 30 1 127.87.31.6
189.87.50.6 Te 1/13 0x4 v2/S 1 30 1 127.87.50.6
Dell#
NOTE: You can influence the selection of the Rendezvous Point by enabling PIM-Sparse mode on a
Loopback interface and assigning a low IP address.
666
PIM Sparse-Mode (PIM-SM)