H3C Technologies H3C S3100 Series Switches - Manual (Page 334)

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[SwitchA-vlan100] mld-snooping querier
[SwitchA-vlan100] quit
2) Configure Switch B
# Enable IPv6 forwarding and enable MLD snooping globally.
<SwitchB> system-view
[SwitchB] ipv6
[SwitchB] mld-snooping
[SwitchB-mld-snooping] quit
# Create VLAN 100, add Ethernet 1/0/1 through Ethernet 1/0/4 into VLAN 100.
[SwitchB] vlan 100
[SwitchB-vlan100] port ethernet 1/0/1 to ethernet 1/0/4
# Enable the MLD snooping feature and the function of dropping unknown IPv6 multicast data packets
in VLAN 100.
[SwitchB-vlan100] mld-snooping enable
[SwitchB-vlan100] mld-snooping drop-unknown
[SwitchB-vlan100] quit
Configurations of Switch C and Switch D are similar to the configuration of Switch B.
3) Verify the configuration
When the MLD snooping querier starts to work, all the switches but the querier receive MLD general
queries. Use the display mld-snooping statistics command to view the statistics information of these
MLD messages received.
# Display the MLD message statistics on Switch B.
[SwitchB-vlan100] display mld-snooping statistics
Received MLD general queries:3.
Received MLDv1 specific queries:0.
Received MLDv1 reports:12.
Received MLD dones:0.
Sent MLDv1 specific queries:0.
Received MLDv2 reports:0.
Received MLDv2 reports with right and wrong records:0.
Received MLDv2 specific queries:0.
Received MLDv2 specific sg queries:0.
Sent MLDv2 specific queries:0.
Sent MLDv2 specific sg queries:0.
Received error MLD messages:0.
MLD Snooping Proxying Configuration Example
Network requirements
As shown in Figure 3-7 ,
z Router A connects to an IPv6 multicast source through port Ethernet 1/0/2, and to Switch A through
port Ethernet 1/0/1.
z Router A runs MLDv1 and Switch A runs MLDv1 Snooping. Router A acts as an MLD querier.
z Configure MLD snooping proxying on Switch A, enabling the switch to forward MLD reports and
done messages on behalf of attached hosts and to respond to MLD queries from Router A and
forward the queries to the hosts on behalf of Router A.