Dell POWEREDGE M1000E - Manual (Page 669)

Configuring IP Multicast 667
The MLD Routing Interface Summary page contains the following fields:
• Interface — Select the VLAN for which data is to be displayed.
Interface Parameters section:
• Global Admin Mode — Displays whether MLD has been globally enabled or disabled.
• Interface Mode — Displays whether the administrative status of MLD on the selected interface is
enabled or disabled.
• Operational Mode — Displays the operational state of MLD on the selected interface, regardless of
the administrative setting.
• Version — Displays the version of MLD configured on the selected interface.
•
Query Interval — Displays the interval in seconds at which MLD host-query packets are transmitted
on the selected interface.
• Query Max Response Time — Displays the maximum query response time in milliseconds (ms)
advertised in MLDv2 queries from the selected interface.
• 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 section:
• 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.