Chapter 51
| Multicast Routing Commands
Static Multicast Routing
– 1182 –
Command Mode
Global Configuration
Command Usage
Depending on your network connections, IGMP snooping may not always be able
to locate the IGMP querier. Therefore, if the IGMP querier is a known multicast
router/switch connected over the network to an interface (port or trunk) on your
router, you can manually configure that interface to join all the current multicast
groups.
Example
The following shows how to configure port 11 as a multicast router port within
VLAN 1:
Console(config)#ip igmp snooping vlan 1 mrouter ethernet 1/11
Console(config)#
show ip igmp
snooping mrouter
This command displays information on statically configured and dynamically
learned multicast router ports.
Syntax
show ip igmp snooping mrouter [vlan vlan-id]
vlan-id - VLAN ID (Range: 1-4094)
Default Setting
Displays multicast router ports for all configured VLANs.
Command Mode
Privileged Exec
Command Usage
Multicast router port types displayed include Static or Dynamic.
Example
The following shows that port 11 in VLAN 1 is attached to a multicast router:
Console#show ip igmp snooping mrouter vlan 1
VLAN M'cast Router Ports Type
---- ------------------- -------
1 Eth 1/11 Static
2 Eth 1/12 Dynamic
Console#
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