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To configure multicast VLAN ports in interface view or port group view:
Ste
Command
Remarks
1. Enter system view.
system-view N/A
2. Configure the specified VLAN
as a multicast VLAN and enter
multicast VLAN view.
multicast-vlan vlan-id
By default, a VLAN is not a
multicast VLAN.
3. Return to system view.
quit N/A
4. Enter interface view or port
group view.
• Enter Layer 2 Ethernet interface
view or Layer 2 aggregate
interface view:
interface interface-type
interface-number
• Enter port group view:
port-group manual
port-group-name
Use either command.
5. Configure the current port as
a member port of the multicast
VLAN.
port multicast-vlan vlan-id
By default, a user port does not
belong to any multicast VLAN.
Displaying and maintaining multicast VLAN
Task Command
Remarks
Display information about a
multicast VLAN.
display multicast-vlan [ vlan-id ] [ |
{ begin | exclude | include }
regular-expression ]
Available in any view
Multicast VLAN configuration examples
Sub-VLAN-based multicast VLAN configuration example
Network requirements
As 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 multicast
group 224.1.1.1. Host A, Host B, Host C, and Host D are receivers of the multicast group. The hosts belong
to VLAN 2 through VLAN 5 respectively.
Configure the sub-VLAN-based multicast VLAN feature on Switch A so that Router A just sends multicast
data to Switch A through the multicast VLAN and Switch A forwards the traffic to the receivers that belong
to different user VLANs.
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