PLANET WGS3-2820 - Manual (Page 281)

User’s Manual of WGS3-2820/WGS3-5220
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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.
o 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.
o Number of Groups - The current number of entries for the selected interface in the cache table.
Command Buttons
o Refresh - Refresh the data on the screen with the present state of the data in the router.
4.7.2.4 IGMP Cache Information
Figure 4-6-60 IGMP Cache Information
Selection Criteria
o Slot/Port - Select the Slot and port for which data is to be displayed. Slot 0 is the base unit.
o 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
o Last Reporter - The IP address of the source of the last membership report received for the IP Multicast group
address on the selected interface.
o Up Time - The time elapsed since this entry was created.
o Expiry Time - The minimum amount of time remaining before this entry will be aged out.