3Com 4210G Series, Configuration Manual, Page: 423 / 1133

5-7
z
Configure the sub-VLAN-based IPv6 multicast VLAN feature so that Router A just sends IPv6
multicast data to Switch A through the IPv6 multicast VLAN and Switch A forwards the traffic to
the receivers that belong to different user VLANs.
Figure 5-4
Network diagram for sub-VLAN-based IPv6 multicast VLAN configuration
Source
Receiver
Host A
VLAN 2
GE1/0/2
GE1/0/3
GE1/0/4
Switch A
MLD querier
Router A
GE1/0/1
1:2/64
GE1/0/2
2001::1/64
1::1/64
Receiver
Host B
VLAN 3
Receiver
Host C
VLAN 4
GE1/0/1
Configuration procedure
1) Enable IPv6 forwarding and configure IPv6 addresses
Enable IPv6 forwarding on each device and configure an IPv6 address and address prefix for each
interface as per
Figure 3-4 . The detailed configuration steps are omitted here.
2) Configure Router A
# Enable IPv6 multicast routing, enable IPv6 PIM-DM on each interface and enable MLD on the
host-side interface GigabitEthernet 1/0/2.
<RouterA> system-view
[RouterA] multicast ipv6 routing-enable
[RouterA] interface gigabitethernet 1/0/1
[RouterA-GigabitEthernet1/0/1] pim ipv6 dm
[RouterA-GigabitEthernet1/0/1] quit
[RouterA] interface gigabitethernet 1/0/2
[RouterA-GigabitEthernet1/0/2] pim ipv6 dm
[RouterA-GigabitEthernet1/0/2] mld enable
3) Configure Switch A
# Enable MLD Snooping globally.
<SwitchA> system-view
[SwitchA] mld-snooping
[SwitchA-mld-snooping] quit
# Create VLAN 2 and assign GigabitEthernet 1/0/2 to this VLAN.
[SwitchA] vlan 2
[SwitchA-vlan2] port gigabitethernet 1/0/2
[SwitchA-vlan2] quit