70To configure multicast VLAN ports in interface view or port group view:Step Command Remarks1. Enter system view. system-view N/A2. Configure the specified VLANas a multicast VLAN and entermulticast VLAN view.multicast-vlan vlan-id By default, a VLAN is not amulticast VLAN.3. Return to system view. quit N/A4. Enter interface view or portgroup view.• Enter Layer 2 Ethernet interfaceview or Layer 2 aggregateinterface view:interface interface-typeinterface-number• Enter port group view:port-group manualport-group-nameUse either command.5. Configure the current port asa member port of the multicastVLAN.port multicast-vlan vlan-id By default, a user port does notbelong to any multicast VLAN.Displaying and maintaining multicast VLANTask Command RemarksDisplay information about amulticast VLAN.display multicast-vlan [ vlan-id ] [ |{ begin | exclude | include }regular-expression ]Available in any viewMulticast VLAN configuration examplesSub-VLAN-based multicast VLAN configuration exampleNetwork requirementsAs shown in Figure 24, IGMPv2 runs on Router A, and IGMPv2 snooping runs on Switch A, Switch B,and Switch C. Router A acts as the IGMP querier. The multicast source sends multicast data to multicastgroup 224.1.1.1. Host A, Host B, Host C, and Host D are receivers of the multicast group. The hosts belongto VLAN 2 through VLAN 5 respectively.Configure the sub-VLAN-based multicast VLAN feature on Switch A so that Router A just sends multicastdata to Switch A through the multicast VLAN and Switch A forwards the traffic to the receivers that belongto different user VLANs.
