DES-3326S Layer 3 Fast Ethernet Switch User’s Guide
Web-Based Switch Management
241
This dialog box allows the configuration of IGMP for each IP
interface configured on the switch. IGMP can be configured as
Version 1 or 2 by toggling the
Version
field using the pull-down
menu. The length of time between queries can be varied by
entering a value between 1 and 65,500 seconds in the
Query
Interval
field. The maximum length of time between the
receipt of a query and the sending of an IGMP response report
can be varied by entering a value in the
Max Response Time
field.
The
Robustness Variable
field allows IGMP to be ‘tuned’ for
sub-networks that are expected to lose a lot of packets. A high
value (max. 255) for the robustness variable will help
compensate for ‘lossy’ sub-networks. A low value (min. 2)
should be used for less ‘lossy’ sub-networks.
The following fields can be set:
Parameter Description
Interface Name
<
System
>
Displays the name of the IP interface
that is to be configured for IGMP.
This must be a previously configured
IP interface.
IP Address
Displays the IP address
corresponding to the IP interface
name above.
Version <
2
>
Enter the IGMP version (1 or 2) that
will be used to interpret IGMP
queries on the interface.
Query Interval
<
125
>
Allows the entry of a value between
1
and
65535
seconds, with a default of
