SMC Networks SMC Tiger 10/100 SMC6128L2 - Manual (Page 536)

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Command Usage
If enabled, the switch will serve as querier if elected. The querier is
responsible for asking hosts if they want to receive multicast traffic.
Example
ip igmp snooping query-count
This command configures the query count. Use the no form to restore the
default.
Syntax
ip igmp snooping query-count count
no ip igmp snooping query-count
count - The maximum number of queries issued for which there has
been no response before the switch takes action to drop a client
from the multicast group. (Range: 2-10)
Default Setting
2 times
Command Mode
Global Configuration
Command Usage
The query count defines how long the querier waits for a response
from a multicast client before taking action. If a querier has sent a
number of queries defined by this command, but a client has not
responded, a countdown timer is started using the time defined by ip
igmp snooping query-max- response-time. If the countdown
finishes, and the client still has not responded, then that client is
considered to have left the multicast group.
Console(config)#ip igmp snooping querier
Console(config)#