HP 6125G HP 6125G & 6125G/XG Blade Switches IP Multicast Configuration - Page 251
Port-based IPv6 multicast VLAN,
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Figure 67 Sub-VLAN-based 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 68, 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 the user ports to VLAN 10, and enable MLD snooping in the IPv6 multicast VLAN and all user VLANs. Figure 68 Port-based IPv6 multicast VLAN IPv6 Multicast packets VLAN 10 (IPv6 Multicast VLAN) VLAN 2 Receiver Host A Source Router A MLD querier GE1/0/2 GE1/0/1 Switch A GE1/0/3 GE1/0/4 VLAN 3 Receiver Host B VLAN 4 Receiver Host C After the configuration, if Switch A receives an MLD message on a user port, it 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 ports 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. For more information about MLD snooping, router ports, and member ports, see "Configuring MLD snooping." 240
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