PLANET XGS3-24040 - Manual (Page 434)

Chapter 44 IPv6 Multicast Protocol
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to multicast server, port 2 to switch2. To send Query periodically, global MLD Snooping has to be enabled
while executing the mld snooping vlan 60 l2-general-querier, setting the vlan 60 to a Level 2 General Querier.
Configuration procedure is as follows:
SwitchA#config
SwitchA(config)#ipv6 mld snooping
SwitchA(config)#ipv6 mld snooping vlan 60
SwitchA(config)#ipv6 mld snooping vlan 60 l2-general-querier
SwitchB#config
SwitchB(config)#ipv6 mld snooping
SwitchB(config)#ipv6 mld snooping vlan 100
SwitchB(config)#ipv6 mld snooping vlan 100 mrouter interface ethernet 1/1
Multicast configuration:
Same as scenario 1
MLD Snooping interception results:
Same as scenario 1
Scenario 3: To run in cooperation with layer 3 multicast protocols
SWITCH which is used in Scenario 1 is replaced with ROUTER with specific configurations remains the same.
And multicast and IGMP snooping configurations are the same with what it is in Scenario 1. To configure
PIM-SM6 on ROUTER, and enable PIM-SM6 on vlan 100 (use the same PIM mode with the connected
multicast router), the configurations are listed as below:
switch#config
switch(config)#ipv6 pim multicast-routing
switch(config)#interface vlan 100
switch(config-if-vlan100)#ipv6 pim sparse-mode
MLD snooping does not distribute entries when layer 3 multicast protocol is enabled. It only does the following
tasks.
 To remove the layer 2 multicast entries.
 To provide query functions to the layer 3 with vlan, S, and G as the parameters.
 When layer 3 MLD is disabled, re-enable distributing layer 2 multicast entries.
By looking up the layer 3 IP6MC entries, it can be found that ports can be indicated by the layer 3 multicast
entries. This ensures the MLD Snooping can work in cooperation with the layer 3 multicast protocols.