Multicast
Querying IGMP/MLD IP Multicast Group
279 Cisco 500 Series Stackable Managed Switch Administration Guide Release 1.3
16
• Operational Query Robustness—Displays the robustness variable sent by 
the elected querier.
• Query Interval—Enter the Query Interval value to be used by the device if 
the device cannot derive the value from the messages sent by the elected 
querier. 
• Operational Query Interval—The time interval in seconds between General 
Queries received from the elected querier.
• Query Max Response Interval—Enter Query Max Response delay to be 
used if the device cannot read the Max Response Time value from General 
Queries sent by the elected querier.
• Operational Query Max Response Interval—Displays the delay used to 
calculate the Maximum Response Code inserted into the General Queries.
• Last Member Query Counter—Enter the Last Member Query Count to be 
used if the device cannot derive the value from the messages sent by the 
elected querier.
• Operational Last Member Query Counter—Displays the operational value 
of the Last Member Query Counter.
• Last Member Query Interval—Enter the Maximum Response Delay to be 
used if the device cannot read Max Response Time value from Group-
Specific queries sent by the elected querier.
• Operational Last Member Query Interval—The Last Member Query 
Interval sent by the elected querier.
• Immediate Leave—When enabled, reduces the time it takes to block 
unnecessary MLD traffic sent to a device port.
STEP  5 Click Apply. The Running Configuration file is updated.
Querying IGMP/MLD IP Multicast Group
The IGMP/MLD IP Multicast Group page displays the IPv4 and IPv6 group address 
learned from IGMP/MLD messages.