H3C Technologies H3C S10500 Series Switches - Manual (Page 84)

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Displaying and maintaining multicast VLAN
To do… Use the 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
Network requirements
• As shown in Figure 24 , Router A connects to a multicast source through GigabitEthernet1/0/1 and
to Switch A through GigabitEthernet 1/0/2. 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.
Figure 24 Network diagram for sub-VLAN-based multicast VLAN configuration
Source
GE
1/0
/2
GE
1/0
/3
Switch A
IGMP querier
Router A
GE1/0/1
1.1.1.2/24
GE1/0/2
10.110.1.1/24
1.1.1.1/24
GE1/0/1
Switch B Switch C
GE
1/0
/1
GE
1/0
/1
Receiver
Host A
VLAN 2
Receiver
Host B
VLAN 3
Receiver
Host C
VLAN 4
Receiver
Host D
VLAN 5
GE1/0/2 GE1/0/3 GE1/0/2 GE1/0/3
Configuration procedure
1. Configure IP addresses