150 IGMP Snooping Commands
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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 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.
ip igmp snooping host-time-out
The
ip igmp snooping host-time-out
Interface Configuration mode 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.
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