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Last Member Query Interval - The last member query interval. The last member query interval is the
maximum response time inserted into group-specific queries sent in response to leave group
messages, and is also the amount of time between group-specific query messages. This value may
be tuned to modify the leave latency of the network. A reduced value results in reduced time to detect
the loss of the last member of a group. This value is not used for IGMP version 1.
Last Member Query Count - The number of queries to be sent on receiving a leave group report.
Querier - The address of the IGMP querier on the IP subnet to which the selected interface is
attached.
Querier Status - Indicates whether the selected interface is in querier or non querier mode.
Querier Up Time - The time in seconds since the IGMP interface querier was last changed.
Querier Expiry Time - The time in seconds remaining before the other querier present timer expires.
If the local system is the querier, this will be zero.
Wrong Version Queries - The number of queries that have been received on the selected interface
with an IGMP version that does not match the IGMP version configured for the interface, over the
lifetime of the entry. IGMP requires that all routers on a LAN be configured to run the same version of
IGMP. Therefore, a configuration error is indicated if any queries are received with the wrong version
number.
Number of Joins - The number of times a group membership has been added on the selected
interface; that is, the number of times an entry for this interface has been added to the cache table.
This gives an indication of the amount of IGMP activity on the interface.
Number of Groups - The current number of entries for the selected interface in the cache table.
Command Buttons
Refresh - Refresh the data on the screen with the present state of the data in the router.
11.8.2.4 Viewing IGMP Cache Information Page
Selection Criteria
Slot/Port - Select the Slot and port for which data is to be displayed. Slot 0 is the base unit.
Multicast Group IP - Select the IP multicast group address for which data is to be displayed. If no
group membership reports have been received on the selected interface you will not be able to make
this selection, and none of the non-configurable data will be displayed.
Non-Configurable Data