Specifications

Multicast Filtering
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Command Usage
• Static multicast addresses are never aged out.
• When a multicast address is assigned to specific VLAN, the corresponding traffic
can only be forwarded to ports within that VLAN.
Command Attributes
• Interface – Activates the Port or Trunk scroll down list.
• VLAN ID – Selects the VLAN to propagate all multicast traffic coming from the
attached multicast router/switch.
• Multicast IP – The IP address for a specific multicast service.
• Port or Trunk – Specifies the interface attached to a multicast router.
Web – Click IGMP, IGMP Member Port Table. Specify the interface attached to a
multicast service (via an IGMP-enabled switch or multicast router), indicate the
VLAN that will propagate the multicast service, specify the multicast IP address, and
then click Add. After you have completed adding ports to the member list, click
Apply.
Figure 2-70 Specifying Multicast Port Membership
CLI – This example assigns a multicast address to VLAN 1, and then displays all the
known multicast services supported on VLAN 1.
Console(config)#ip igmp snooping vlan 1 static 224.0.0.12
ethernet 1/12 3-156
Console(config)#exit
Console#show mac-address-table multicast vlan 1 3-158
VLAN M'cast IP addr. Member ports Type
---- --------------- ------------ -------
1 224.0.0.12 Eth1/12 USER
1 224.1.2.3 Eth1/12 IGMP
Console#