Example 
For VLAN 2, specify its query-interval as 200 seconds, and the response-time 
as 20 seconds: 
T2500G-10TS(config)#ip igmp snooping querier vlan 2 query-interval 200 
T2500G-10TS(config)#ip igmp snooping querier vlan 2 
max-response-time 20 
31.15  ip igmp snooping querier vlan (specific query) 
Description 
The  ip igmp snooping querier vlan  command is used to configure the 
parameters for IGMP Snooping Querier to send a specific query frame. To 
return to the default configuration, please use no ip igmp snooping querier 
vlan command. 
Syntax 
ip igmp snooping querier vlan 
vlan-list
  {last-member-query-interval 
interval |
  last-member-query-count
  count |
  special-query source-ip 
ip-addr
 } 
no ip igmp snooping querier vlan 
vlan-list
  {last-member-query-interval 
|
 
last-member-query-count
 |
 special-query source-ip} 
Parameter 
vlan-list
—— VLAN ID list, ranging from 1 to 4094, in the format of 1-3, 5. It is 
multi-optional. 
interval
——  The time interval of sending specific query frames by IGMP 
Snooping Querier, ranging from 1 to 5 (Seconds). By default, it is 1. A specific 
query will be sent on condition that “immediate-leave” is not enabled and a 
leave frame is received. 
count
——  The  times of sending specific query frames by IGMP Snooping 
Querier,  ranging from 1 to 5. By default, it is 2. The switch will still treat the 
port as group member until the specific frames number sent by the querier 
reaches “last-member-query-count” and no report frame is received from the 
port. 
ip-addr
—— The source IP of the specific query frame sent by IGMP Snooping 
Querier. It should not be a multicast IP or a broadcast IP. By default, it is 
192.168.0.1. 
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