Configuring Layer 2 Multicast IGMP Snooping Configuration
Configuration Guide  
  221
Query Interval With IGMP Snooping Querier enabled, specify the interval between general query 
messages sent by the switch.
Maximum 
Response Time
With IGMP Snooping Querier enabled, specify the host’s maximum response time 
to general query messages.
Last Member 
Query Interval
With IGMP Snooping Querier enabled, when the switch receives an IGMP leave 
message, it obtains the address of the multicast group that the host wants to 
leave from the message. Then the switch sends out group-specific queries to this 
multicast group through the port receiving the leave message. This parameter 
determines the interval between group-specific queries.
Last Member 
Query Count
With IGMP Snooping Querier enabled, specify the number of group-specific 
queries to be sent. If specified count of group-specific queries are sent and no 
report message is received, the switch will delete the multicast address from the 
multicast forwarding table.
General Query 
Source IP
With IGMP Snooping Querier enabled, specify the source IP address of the 
general query messages sent by the switch. It should be a unicast address. 
Static Router 
Ports
Select one or more ports to be the static router ports in the VLAN. Static router 
ports do not age. 
Multicast streams and IGMP packets to all groups in this VLAN will be forwarded 
through the static router ports. Multicast streams and IGMP packets to the groups 
that have dynamic router ports will be also forwarded through the corresponding 
dynamic router ports.
Forbidden 
Router Ports
Select ports to forbid them from being router ports in the VLAN.
2)  Click Save.