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Figure 72 Sub-VLAN-based IPv6 multicast VLAN

Source

Router A

MLD querier

VLAN 2

VLAN 3

VLAN 4

Switch A

Receiver

Host A

Receiver

Host B

Receiver

Host C

IPv6 Multicast packets

VLAN 2

VLAN 3

VLAN 4

VLAN 10 (IPv6 Multicast VLAN)

After the configuration, MLD snooping manages router ports in the IPv6 multicast VLAN and member

ports in the sub-VLANs. When forwarding multicast data to Switch A, Router A sends only one copy of

multicast data to Switch A in the IPv6 multicast VLAN, and Switch A distributes the data to the sub-

VLANs that contain receivers.

Port-based IPv6 multicast VLAN

As shown in Figure 73, Host A, Host B, and Host C are in different user VLANs. All the user ports are

hybrid ports. On Switch A, configure VLAN 10 as an IPv6 multicast VLAN, assign all user ports to VLAN

10, and enable MLD snooping in the IPv6 multicast VLAN and all user VLANs.

Figure 73 Port-based IPv6 multicast VLAN

After the configuration, upon receiving an MLD message on a user port, Switch A tags the message with

the IPv6 multicast VLAN ID and relays it to the MLD querier, so that MLD snooping can uniformly

manage the router port and member ports in the IPv6 multicast VLAN. When Router A forwards multicast

data to Switch A, it sends only one copy of multicast data to Switch A in the IPv6 multicast VLAN, and

Switch A distributes the data to all member ports in the IPv6 multicast VLAN.

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HP A5500 SI Switch Series Specifications

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