User Guidelines
IGMP snooping can only be enabled on static VLANs.
Example
The following example enables IGMP snooping on VLAN 2.
Console (config)# interface vlan 2
Console (config-if)# ip igmp snooping
ip igmp snooping mrouter
The ip igmp snooping mrouter interface configuration command enables automatic learning of
Multicast router ports in the context of a specific VLAN. To remove automatic learning of
Multicast router ports, use the no form of this command.
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 mrouter learn-pim-dvmrp
ip igmp snooping host-time-out
The ip igmp snooping host-time-out interface configuration command configures the host-time-
out. If an IGMP report for a Multicast group was not received for a host-time-out period, from a
specific port, this port is deleted from the member list of that Multicast group. To reset to default
host-time-out use the no form of this command.
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IGMP Snooping Commands