SMC Networks SMC6624M Management Manual page 289

Configuring IGMP Traffic Priority. This command assigns "high" priority
to IGMP traffic or returns a high-priority setting to "normal" priority.
Syntax:
vlan <vid> ip igmp high-priority-forward
Default: normal
SMC6624M(config)# vlan 1 ip igmp high-priority-forward
Configures high priority for IGMP traffic on VLAN 1.
SMC6624M(vlan-1)# vlan 1 ip igmp high-priority-forward
Same as above command, but in the VLAN 1 context level.
SMC6624M(vlan 1)# no ip igmp high-priority-forward
Returns IGMP traffic to "normal" priority.
SMC6624M> show ip igmp config
Show command to display results of above high-priority commands.
Configuring the Querier Function. The function of the IGMP Querier is
to poll other IGMP-enabled devices in an IGMP-enabled VLAN to elicit group
membership information. The switch performs this function if there is no
other device in the VLAN, such as a multicast router, to act as Querier.
Although the switch automatically ceases Querier operation in an IGMP-
enabled VLAN if it detects another Querier on the VLAN, you can also use a
CLI command to disable the Querier function for that VLAN.
The default querier function is "enabled". This command disables or re-
enables the querier function.
[no] vlan <vid> ip igmp querier
Syntax:
Yes
Default:
For example, to disable the Querier function on VLAN 1 in an SMC6624M
switch:
SMC6624M(config)# no vlan 1 ip igmp querier
Disables the querier function on VLAN 1.
SMC6624M(vlan-1)# no ip igmp querier
Disables Querier function on VLAN 1 from within the VLAN 1
context.
Configuring Advanced Features
Multimedia Traffic Control with IP Multicast (IGMP)
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