Configuration Guide - IP Multicast

Procedure

1. Run system-view

   The system view is displayed.

2. Run interface interface-type interface-number

   The interface view is displayed.

3. On an Ethernet interface, run undo portswitch

   The interface is switched to Layer 3 mode.

   By default, an Ethernet interface works in Layer 2 mode.

   The mode switching function takes effect when the interface only has attribute configurations (for example, shutdown and description configurations). Alternatively, if configuration information supported by both Layer 2 and Layer 3 interfaces exists (for example, mode lacp and lacp system-id configurations), no configuration that is not supported after the working mode of the interface is switched can exist. If unsupported configurations exist on the interface, delete the configurations first and then run the undo portswitch command.

   NOTE:

   If many Ethernet interfaces need to be switched to Layer 3 mode, run the undo portswitch batch interface-type { interface-number1 [ to interface-number2 ] } &<1-10> command in the system view to switch these interfaces to Layer 3 mode in batches.

4. For a Layer 3 sub-interface, run the following commands to configure termination of single-tagged packets on it.
   1. Run quit

      Return to the system view.

   2. Run interface interface-type interface-number.subinterface-number

      The Layer 3 sub-interface view is displayed.

      The subinterface-number parameter must specify a Layer 3 sub-interface number on an Ethernet interface that has been switched to the Layer 3 mode.

   3. Run dot1q termination vid vid

      Termination of Dot1q packets is configured on the Layer 3 sub-interface.

      By default, the termination of Dot1q packets is not configured on a Layer 3 sub-interface.

5. Run igmp group-policy { acl-number | acl-name acl-name } [ 1 | 2 | 3 ]

   An ACL is applied to specify the range of multicast groups that the interface can join.

   By default, an interface can join any multicast group.

   NOTE:

   When configuring an ACL rule for an interface, use the permit parameter in the rule command to allow hosts connected to the interface to join groups within the specified range. If no rule is configured in the ACL, hosts connected to the interface cannot join any groups.

6. Run commit

   The configuration is committed.