D-Link DI-1750 Reference Manual page 307

ip
query-max-response-time time
Choose the 17th option in the parameter clew, notify
(00)access-group
(06)igmp
......
Please Input the code of command to be excute(0-22): 6
input 6，choose igmp option，notify：
(00)helper-address
......
(06)query-max-response-time the max response time for group member to report
......
Please Input the code of command to be execute (0-8): 6
input 6，choose query-max-response-time option，then input time.
For IGMP-Router port protocol version 1, the max response time is decided by the protocol, it can't be
configured, so the front configuration command is not used in the IGMP-Router port protocol version 1.
Example of configuring IGMP max response time
The following example demonstrate the process that administrator change the IGMP max response
time on one port to 15s.
interface ethernet 0/0
ip igmp query-max-response-time 15
7.2.8 Configure IGMP last member query interval
For the IGMP-Router port protocol version 2 and version 3, when send to someone specify Group
Specific Query of multi-cast, it will take query interval of the last group member as the max response
time of the master from IGMP Query message, that means the IGMP master must send the response
message to Query message during the query interval of the last group member when receive the
Group Specific Query. If the IGMP master check the state of itself, and fine that there is no need to
response the Query message, then the response message will still not be sent after the interval, the
multi-cast router will update the information about the members of multi-cast. If the interval is set too
long, it will cause the delay that IGMP multi-cast members changes the status, while if the interval is too
short, it will cause overflow of IGMP message.
For the IGMP-Router port protocol version 2 and version 3, set IGMP last group member query interval
could use the following command under the port configuration:
Command
ip
last-member-query-interval
time
Choose the 17th option in the parameter clew, notify
(00)access-group
......
(06)igmp
......
Please Input the code of command to be execute (0-22): 6
input 6，choose igmp option，notify：
(00)helper-address
......
(03)last-member-query-interval
Command
igmp
Configure IGMP max response time,/second
Specify access control for packets
......
IGMP interface command
relay igmp packet
igmp
Configure IGMP last group member query
interval (/s)
Specify access control for packets
IGMP interface command
Model Name
Purpose
Purpose
relay igmp packet
the interval between host query is sent
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