D-Link DES-3226SM Reference Manual page 202

DES-3226S Layer 2 Fast Ethernet Switch User's Guide
config igmp_snooping querier
in response to leave-group messages. You
might lower this interval to reduce the
amount of time it takes a router to detect the
loss of the last member of a group
state [enabled/disabled] − Allows the switch to
be specified as an IGMP Querier or Non-
querier.
Restrictions Only administrator-level users can issue this
command.
Example Usage:
To configure the igmp snooping:
DES3226S:4#config igmp_snooping querier default
query_interval 125 state enabled
Command: config igmp_snooping querier default
query_interval 125 state enabled
Success.
DES3226S:4#
202
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IGMP Snooping Commands