Device Online Help # Go back one pageGo to the next page#Go to this book's Index

Configuring IGMP

To configure IGMP:


From the Device Manager menu bar, choose Edit > Port > IGMP.


The Port dialog box opens with the IGMP tab displayed.

The table below describes the IGMP tab fields.


Field Description
QueryInterval
The frequency (in seconds) at which IGMP host query packets are transmitted on the interface. The range is from 1 to 65535. The default is 125.
Version
The version of IGMP that is configured on the interface. For IGMP to function correctly, all routers on a LAN must be configured to run the same version of IGMP on that LAN. Select IGMP version1 or version2 for ALL routers on the LAN.
QueryMaxResponseTime
The maximum response time (in seconds) advertised in IGMPv2 general queries on this interface. Smaller values allow a router to prune groups faster. This value for IGMPv1 is not configurable and has a default value of 10 seconds.
Robustness
This parameter allows tuning for the expected packet loss of a network. This value is equal to the number of expected query packet losses per serial query interval, plus 1. If a network is expected to lose query packets, the robustness value should be increased. The range is from 2 to 255 with a default value of 2. The default value of 2 means that one query per query interval may be dropped without the querier aging out.
LastMemQueryInt
The maximum response time inserted into group-specific queries sent in response to leave group messages; also the time between group-specific query messages. Increasing this parameter increases the time before aging hosts on the network. It also increases the number of retransmits of group-specific queries. The range is from 1 to 255. The default value is 1.
SnoopEnable
ProxySnoopEnable
FastLeaveEnable

Click the radio button to enable one or more of these features.

See also


Go back one pageGo to the next page##Go to this book's Index