Configuring a multicast group policy
About multicast group policies
This feature enables the Layer 2 device to filter IGMP reports by using an ACL that specifies the multicast groups and the optional sources. It is used to control the multicast groups that hosts can join. This configuration takes effect only on the multicast groups that ports join dynamically.
In a multicast application, a host sends an unsolicited IGMP report when a user requests a multicast program. The Layer 2 device uses the multicast group policy to filter the IGMP report. The host can join the multicast group only if the IGMP report is permitted by the multicast group policy.
Configuring a multicast group policy globally
Enter system view.
system-view
Enter IGMP-snooping view.
igmp-snooping
Configure a multicast group policy globally.
group-policy ipv4-acl-number [ vlan vlan-list ]
By default, no multicast group policies are configured, and hosts can join any multicast groups.
Configuring a multicast group policy on a port
Enter system view.
system-view
Enter Layer 2 interface view.
Enter Layer 2 Ethernet interface view.
interface interface-type interface-number
Enter Layer 2 aggregate interface view.
interface bridge-aggregation interface-number
Configure a multicast group policy on the port.
igmp-snooping group-policy ipv4-acl-number [ vlan vlan-list ]
By default, no multicast group policies are configured on a port, and hosts attached to the port can join any multicast groups.