Administrator Guide

Layer 3 Routing Commands 1670
Syntax
ip pim sparse-mode
no ip pim
Default Configuration
PIM not enabled by default.
Command Mode
Global Configuration mode
User Guidelines
Only one of sparse or dense mode can be configured on a router.IGMP is
automatically enabled if PIM is enabled and disabled when PIM is disabled.
IP multicast must be enabled for PIM to operate. ip multicast-routing is not
disabled or enabled by this command.
It is recommended that IGMP snooping be disabled if IP multicast is enabled
unless specifically required.
PIM is not compatible with DVMRP. DVMRP must be disabled before
enabling PIM.
Example
console(config)#ip pim sparse-mode
ip pim ssm
Use the ip pim ssm command in Global Configuration mode to
administratively configure PIM source specific multicast range of addresses
for IP multicast routing. Use the no form of this command to remove
configured ranges of addresses from the router.
Syntax
ip pim ssm {default | group-address group-mask }
no ip pim ssm {default |
group-address group-mask }
• default —Defines the SSM range access list to 232/8.
2CSNXXX_SWUM204.book Page 1670 Monday, January 25, 2016 1:25 PM