restarted whenever a Query control message is received over that port. If there were no Query control
messages received for 'Router Port Purge Interval' time, the learned router port entry will be purged. Default
is 260 seconds.
Last Member Query Interval (1-25 sec): The Last Member Query Interval is the Max 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 adjusted 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. Default
is 1 second.
Max Response Time (10-25 sec): The Max Response Time specifies the maximum allowed time before
sending a responding report message. Adjusting this setting effects the "leave latency", or the time between
the moment the last host leaves a group and when the multicast server is notified that there are no more
members. It also allows adjustments for controlling the frequency of IGMP traffic on a subnet. Default is 10
seconds.
Press Apply for changes to take effect.
Click the Edit button to enter the Router Port Settings which you can configure what ports to be assigned as
router ports for IGMP snooping for the VLAN.
A router port configured manually is a Static Router Port and a Dynamic Router Port is dynamically
configured by the Switch when a query control message is received. Press Apply for changes to take effect.
Figure 4.54 – Configuration > IGMP Snooping > IGMP Snooping-Router Port Settings
To view the Multicast Entry Table for a given VLAN, press the View button.
Figure 4.55– Configuration > IGMP Snooping > IGMP Snooping-Multicast Entry Table
Configuration > IGMP Snooping > IGMP Access Control Settings
The IGMP Access Control Settings page allows you to enable or disable the IGMP access control of ports.
Click Apply to implement changes made.
Figure 4.56 - Configuration > IGMP Snooping > IGMP Access Control Settings
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