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ip pim snooping
e
Enable PIM-SM snooping globally on a switch or on a VLAN interface.
x
ip pim snooping [enable]
Syntax
To disable PIM-SM snooping enter the no form of the command.
Defaults
Disabled.
Command Modes
CONFIGURATION: To configure PIM-SM snooping globally, enter the ip pim snooping enable
command in global configuration mode.
VLAN INTERFACE: To configure PIM-SM snooping on a VLAN interface, enter the ip pim
snooping command in VLAN interface configuration mode.
Command
Version 8.4.1.1
History
Usage
Because PIM-SM snooping is used in a Layer 2 environment, PIM-SM snooping and PIM multicast
Information
routing are mutually exclusive. PIM-SM snooping cannot be enabled on a switch/router if PIM-SM or
PIM-DM is enabled.
If enabled at the global level, PIM-SM snooping is automatically enabled on all VLANs unless the no
ip pim snooping command has been entered on a VLAN.
If enabled at the VLAN level, PIM-SM snooping requires that you also enter the no shutdown
command to enable the interface.
PIM-SM snooping is supported with IGMP snooping, and forwards the IGMP report on the port that
connects to the PIM DR. It is recommended that you do not enable IGMP snooping on a PIM-SM
snooping-enabled VLAN interface unless until it is necessary for VLAN operation.
PIM-SM snooping listens to PIM hello and PIM-SM join and prune messages while maintaining the
VLAN- and port-specific information in multicast packets that are snooped.
To display information about the operation of PIM-SM snooping on a switch, enter the show ip pim
summary command.
Related
show ip pim snooping tib
Commands
Introduced on E-Series ExaScale
Display TIB information learned through PIM-SM snooping.
PIM-Sparse Mode (PIM-SM) | 1107
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