Cisco Systems EA6500 Manual De Usuario

Hosts normally join multicast groups dynamically, but you can also configure a host statically for a 
Layer 2 LAN port.

To configure a host statically for a Layer 2 LAN port, perform this task:

With Release 12.1(11b)E2 and later releases, you can enter the disable-snooping keyword to prevent 
multicast traffic addressed to the statically configured multicast MAC address from being sent to 
multicast router ports in the same VLAN.

This example shows how to configure a host statically in VLAN 12 on FastEthernet port 5/7:

Router(config)# mac-address-table static 0050.3e8d.6400 vlan 12 interface fastethernet 5/7 

All releases support the mac-address-table static command. The ip igmp snooping static command, 
which was available in earlier releases and which provided the same functionality as the 
mac-address-table static command, is deprecated in Release 12.1(13)E and later releases.

These sections describe displaying IGMP snooping information:

When you enable IGMP snooping, the switch automatically learns to which interface multicast routers 
are connected. 

To display multicast router interfaces, perform this task:

Router(config)# interface vlan vlan_ID 

Selects a VLAN interface.

Router(config)# mac-address-table static mac_addr 

 vlan_id interface type

1

 slot/port 

[disable-snooping]

1.

type = ethernet, fastethernet, gigabitethernet, or tengigabitethernet 

Configures a static connection to a multicast router. 

Router(config)# no mac-address-table static 

mac_addr vlan vlan_id 

Clears a static connection to a multicast router.

Router# show ip igmp snooping mrouter 

 vlan_ID 

Displays multicast router interfaces.