Example: Configuring MLD proxying

As shown in Figure 105:

• IPv6 PIM-DM runs on the core network.

• Host A and Host C on the stub network receive VOD information destined to IPv6 multicast group FF3E::101.

Configure the MLD proxying feature on Switch B so that Switch B can maintain group memberships and forward IPv6 multicast traffic without running IPv6 PIM-DM.

1. Assign an IPv6 address and prefix length to each interface, as shown in Figure 105. (Details not shown.)

2. Enable IPv6 multicast routing, IPv6 PIM-DM, MLD, and MLD proxying:

   # On Switch A, enable IPv6 multicast routing.

   <SwitchA> system-view
   [SwitchA] ipv6 multicast routing
   [SwitchA-mrib6] quit
   

   # Enable IPv6 PIM-DM on VLAN-interface 101.

   [SwitchA] interface vlan-interface 101
   [SwitchA-Vlan-interface101] ipv6 pim dm
   [SwitchA-Vlan-interface101] quit
   

   # Enable MLD on VLAN-interface 100.

   [SwitchA] interface vlan-interface 100
   [SwitchA-Vlan-interface100] mld enable
   [SwitchA-Vlan-interface100] quit
   

   # On Switch B, enable IPv6 multicast routing.

   <SwitchB> system-view
   [SwitchB] multicast ipv6 routing-enable
   [SwitchB-mrib6] quit
   

   # Enable MLD proxying on VLAN-interface 100.

   [SwitchB] interface vlan-interface 100
   [SwitchB-Vlan-interface100] mld proxying enable
   [SwitchB-Vlan-interface100] quit
   

   # Enable MLD on VLAN-interface 200.

   [SwitchB] interface vlan-interface 200
   [SwitchB-Vlan-interface200] mld enable
   [SwitchB-Vlan-interface200] quit
   

# Display IPv6 multicast group membership information maintained by the MLD proxy on Switch B.

[SwitchB] display mld proxy group
MLD proxy group records in total: 1
 Vlan-interface100(FE80::16:1):
  MLD proxy group records in total: 1
   Group address: FF1E::1
    Member state: Delay
    Expires: 00:00:02