Users Guide

Layer 2 Switching Commands 488
Default Configuration
Unregistered multicast traffic is only flooded to router ports by default. If no
mrouter ports are configured, or IGMP snooping cannot identify a multicast
router, then unregistered multicast is flooded to all ports in the VLAN.
Command Mode
Global Configuration mode.
User Guidelines
There is no equivalent MLD command since this setting applies to both
protocols.
Example
console(config)#ip igmp snooping unregistered floodall
ip igmp snooping vlan mrouter
This command statically configures a port as connected to a multicast router
for a specified VLAN. Use the no form of this command to remove the static
binding.
Syntax
ip igmp snooping vlan vlan-id mrouter interface interface-id
no ip igmp snooping vlan vlan-id mrouter interface interface-id
• vlan-id — A VLAN identifier (Range 1-4093).
• interface-id—The next-hop interface to the multicast router. Ethernet
interface identifiers and port channel identifiers are allowed.
Default Configuration
There are no multicast router ports configured by default.
Command Mode
Global Configuration mode.