196 IGMP Snooping Commands
Default Configuration
IGMP snooping is disabled.
Command Mode
Interface Configuration (VLAN) mode.
User Guidelines
• IGMP snooping can only be enabled on static VLANs.
Example
The following example enables IGMP snooping on VLAN 2.
ip igmp snooping mrouter
The ip igmp snooping mrouter Interface Configuration mode command enables automatic learning of
Multicast router ports of a specific VLAN. Use the no form of this command to remove automatic
learning of Multicast router ports.
Syntax
• ip igmp snooping mrouter learn-pim-dvmrp
• no ip igmp snooping mrouter learn-pim-dvmrp
Default Configuration
Automatic learning of mrouter ports is enabled.
Command Mode
Interface Configuration (VLAN) mode.
User Guidelines
• Multicast router ports can be configured statically by the
bridge multicast forward-all
command.
Example
The following example enables automatic learning of Multicast router ports on VLANs.
Console (config)# interface vlan 2
Console (config-if)# ip igmp snooping
Console (config) # interface vlan 2
Console (config-if)# ip igmp snooping mrouter learn-pim-dvmrp
5400_CLI.book Page 196 Wednesday, December 17, 2008 4:33 PM
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