Dell PowerConnect 6248 User's Guide - Page 755
Wrong Version Queries Received, Last Member Query Interval
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• Robustness - Displays the robustness parameter for the selected interface. This value allows tuning for the expected packet loss on a subnet. If a subnet is expected to be lossy, increase the robustness variable. MLD is robust to (robustness variable - 1) packet losses. • Startup Query Interval - Displays the interval in seconds at which startup queries are sent on the selected interface. • Startup Query Count - Displays the number of queries to be sent upon startup. • Last Member Query Interval - Displays the maximum response time, in milliseconds, inserted into group-specific queries sent in response to leave group messages. This value is also the amount of time between group-specific query messages. This value may be tuned to modify the leave latency of the network. 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. NOTE: This value is not used for MLD version 1. • Last Member Query Count - The number of queries to be sent on receiving a leave group report. Interface Statistics • Querier Status - Displays whether the selected router interface is currently the MLD querier. If another interface on the network has a lower source IP address, it becomes the querier. • Querier - The address of the MLD querier on the IP subnet to which the selected interface is attached. • Querier Up Time - The time in hours:minutes:seconds since the MLD interface querier was last changed. • Querier Expiry Time - The time in hours:minutes:seconds remaining before the other querier present timer expires. If the local system is the querier, this will be zero. • Wrong Version Queries Received - The number of queries that have been received on the selected interface with an MLD version that does not match the MLD version configured for the interface, over the lifetime of the entry. MLD requires that all routers on a LAN be configured to run the same version of MLD. Therefore, a configuration error is indicated if any queries are received with the wrong version number. • Number of Joins Received - 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 MLD activity on the interface. • Number of Groups - The current number of entries for the selected interface in the cache table. Click Refresh to display the latest information from the router. Displaying IPv6 MLD Routing Interface Summary Information Using CLI Commands For information about the CLI command that performs this function, see the following chapter in the CLI Reference Guide: • IPv6 Routing Commands Configuring IP Multicast 755