Configuring an IPv6 multicast group filter
On a MLD snooping-enabled switch, the configuration of an IPv6 multicast group filter enables the service provider to define limits of multicast programs available to different users.
In an actual application, when a user requests a multicast program, the user's host initiates an MLD report. Upon receiving this report message, the switch compares the report against the configured ACL rule. If the port that received the report can join this IPv6 multicast group, the switch adds an entry for this port in the MLD snooping forwarding table. Otherwise the switch drops this report message. Any IPv6 multicast data that fails the ACL check will not be sent to this port. In this way, the service provider can control the VOD programs provided for multicast users.
Configuring an IPv6 multicast group filter globally
Follow these steps to configure an IPv6 multicast group globally:
To do... | Use the command... | Remarks |
|---|---|---|
Enter system view | system-view | — |
Enter MLD snooping view | mld-snooping | — |
Configure an IPv6 multicast group filter | group-policy acl6-number [ vlan vlan-list ] | Required By default, no IPv6 group filter is globally configured. That is, hosts in VLANs can join any valid multicast group. |
Configuring an IPv6 multicast group filter on a port or a group of ports
Follow these steps to configure an IPv6 multicast group filer on a port or a group of ports:
To do... | Use the command... | Remarks |
|---|---|---|
Enter system view | system-view | — |
Enter Ethernet interface/Layer 2 aggregate interface view or port group view | interface interface-type interface-number | Required Use either approach |
port-group manual port-group-name | ||
Configure an IPv6 multicast group filter | mld-snooping group-policy acl6-number [ vlan vlan-list ] | Required By default, no IPv6 group filter is configured on an interface. That is, hosts on the interface can join any valid multicast group. |