T3700G-28TQ
 
JetStream 28-Port Gigabit Stackable L3 Managed Switch CLI Guide 
 
226 
Command Mode 
Global Configuration Mode 
Example 
Specify the operation of processing unknown multicast as “discard”: 
T3700G-28TQ(config)#ip igmp snooping drop-unknown 
ip igmp snooping vlan-config 
Description 
The ip igmp snooping vlan-config command is used to enable VLAN IGMP 
Snooping function or to modify IGMP Snooping parameters, and to create static 
multicast IP entry. To disable the VLAN IGMP Snooping function, please use no 
ip igmp snooping vlan-config command. 
Syntax 
ip igmp snooping vlan-config  vlan-list [ rtime  router-time |   mtime 
member-time |  ltime  leave-time | rport interface {  fastEthernet  port | 
gigabitEthernet port | ten-gigabitEthernet port } ] 
ip igmp snooping vlan-config vlan-id static ip interface { fastEthernet port | 
gigabitEthernet port | ten-gigabitEthernet port } 
no ip igmp snooping vlan-config vlan-id list 
no ip igmp snooping vlan-config vlan-id static ip 
Parameter 
vlan-list  ——  The ID list of the VLAN desired to modify configuration, ranging 
from 1 to 4094, in the format of 1-3, 5. 
router-time  —— Router Port Time. Within this time, if the switch does not 
receive IGMP query message from the router port, it will consider this port is not 
a router port any more. Router Port Time ranges from 60 to 600 in seconds. By 
default, it is 300 seconds. 
member-time  ——  Member Port Time. Within this time, if the switch does not 
receive IGMP report message from the member port, it will consider this port is 
not a member port any more. Member Port Time ranges from 60 to 600 in 
seconds. By default, it is 260 seconds. 
leave-time  ——  Leave Time, which is the interval between the switch receiving 
a leave message from a host and the switch removing the host from the