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DES-3326 Layer 3 Fast Ethernet Switch User’s Guide
IGMP Interface Configuration
Figure 6-57. IGMP Interface Configuration screen
This menu 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 Ver field. The length of time between queries can be varied
by entering a value between 1 and 65,535 seconds in the Query 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 field.
The Robustness Var 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.
Parameter Description
Interface Name:[ ]
Allows the entry of the name of the IP interface that is to
be configured for IGMP. This must be a previously
configured IP interface.
Ver:<2> Can be toggled between 1 and 2. This determines the
IGMP version (1 or 2) that will be used to interpret IGMP
queries on the interface.
Robustness Var:[ 2]
A tuning variable to allow for subnetworks that are
expected to lose a large number of packets. A value
between 2 and 255 can be entered, with larger values
being specified for subnets that are expected to lose
larger numbers of packets.
Query:[125 ] Allows the entry of a value between 1 and 65535
seconds, with a default of 125 seconds. This specifies
the length of time between sending IGMP queries.
Max Response:[10]
Sets the maximum amount of time allowed before
sending an IGMP response report. A value between 1
and 25 seconds can be entered, with a default of 10
seconds.
IP Address:
Displays the IP address corresponding to the IP interface
name entere
d above
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