PLANET XGS3-24040 - Manual (Page 647)

XGS3 Command Guide
38-76
every multicast group, the value of timer is selected random from 0 to maximum response time, the host
will transmit member report message of the multicast group. Reasonable configuring maximum response
time, it can make host quickly response query message. The router can also quickly grasp the status of
multicast group member.
Example: configure the maximum period responding to the IGMP query messages to 20s
Switch (config)#interface vlan 1
Switch(Config-if-Vlan1)#ip igmp query- max-response-time 20
38.9.11 ip igmp query-timeout
Command: ip igmp query-timeout <time_val>
no ip igmp query-timeout
Function: Configure IGMP query timeout of interface; the “no ip igmp query-timeout” command
restores default value.
Parameter: <time_val> is IGMP query-timeout, value range from 60s to 300s.
Default: 255s.
Command Mode: Interface Configuration Mode
Usage Guide: When multi-running IGMP switches are exist on sharing network, a switch will be voted as
query processor on the sharing network, and other switches will be a timer monitoring the state of query
processor; It still does not receive query message transmitting by query processor over query time-out,
thus it re-votes another switch as new query processor.
Example: Configure timeout of IGMP query message on interface to 100s.
Switch (config)#interface vlan 1
Switch(Config-if-Vlan1)#ip igmp query-timeout 100
38.9.12 ip igmp robust-variable
Command: ip igmp robust-variable <value>
no ip igmp robust-variable
Function: Configure the robust variable value，the “no ip igmp robust-variable” command restores
default value.
Parameter: value：range from 2 to 7.
Command Mode: Interface Configuration Mode
Default: 2.
Usage Guide: It is recommend to use the default value.
Example:
Switch (config-if-vlan1)#ip igmp robust-variable 3