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LB9 User’s Guide 1456/1523
Interface Mode - Select enable or disable from the pull down menu to set the administrative status
of IGMP on the selected interface. The default is disable.
Version - Enter the version of IGMP you want to configure on the selected interface. Valid values
are (1 to 3) and the default value is 3. This field is configurable only when IGMP interface mode is
enabled.
Robustness - Enter the robustness value. This variable allows tuning for the expected packet loss
on a subnet. If you expect the subnet to be lossy, you should enter a higher number for this
parameter. IGMP is robust to (robustness variable-1) packet losses. Valid values are from 1 to 255.
The default value is 2.
Query Interval - Enter the frequency in seconds at which IGMP host-query packets are to be
transmitted on this interface. Valid values are from 1 to 3600. The default value is 125.
Query Max Response Time - Enter the maximum query response time to be advertised in IGMPv2
queries on this interface, in tenths of a second. The default value is 10. Valid values are from (0 to
255) .
Startup Query Interval - Enter the number of seconds between the transmission of startup queries
on the selected interface. The valid values are from 1 to 300. The default value is 31
Startup Query Count - Enter the number of queries to be sent on startup. The valid values are from
1 to 20. The default value is 2.
Last Member Query Interval - Enter the last member query interval in tenths of a second. This is
the maximum response time to be inserted into group-specific queries sent in response to leave
group messages, and is also the amount of time between group-specific query messages. Valid
values are from 0 to 255. The default value is 1. This value is not used for IGMP version 1
Last Member Query Count - Enter the number of queries to be sent on receiving a leave group
report. Valid values are from 1 to 20. The default value is 2.
Command Buttons
Submit - Update the switch with the values on the screen. If you want the switch to retain the new
values across a power cycle you must perform a save
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