Use this command to display IGMP configuration information for one or more VLANs.
| vlan-list | Specifies the VLAN(s) for which to display IGMP configuration information. | 
None.
All command modes.
This example shows how to display IGMP configuration information for VLAN 1:
System(su)->show igmp config 1 IGMP config for vlan 1 ----------------------------------- QueryInterval(sec.) - 125 Status - Active Version - 2 QueryMaxResponseTime(sec.) - 10 Robustness - 2 LastMemberQueryIntvl - 10 FastLeaveState - Disabled RouterAlert Required - True QuerierUpTime - 0 D 0 H 0 M 0 S QuerierExpiryTime - 0 D 0 H 0 M 0 S QuerierIP - 0.0.0.0
show igmp config Output Details shows a detailed explanation of command output. For details on using the set igmp config command to set these parameters, refer to set igmp config.

show igmp config Output Details
| Output... | What it displays... | 
|---|---|
| QueryInterval(sec.) | Frequency (in seconds) of host-query frame transmissions. | 
| Status | Whether VLAN configuration is Active or Not in Service. | 
| Version | IGMP version (1 or 2). | 
| QueryMaxResponseTime(sec.) | Maximum query response time. | 
| Robustness | Robustness value. | 
| LastMemberQueryIntvl | Last member query interval (in tenths of a second). This is the maximum response time inserted into group-specific queries which are sent in response to Leave Group messages. It is also the amount of time between group-specific query messages. | 
| FastLeaveState | Whether fast leave is enabled or disabled on the VLAN. | 
| RouterAlert Required | Whether routing alert checking is required. | 
| QuerierUpTime | Time (in days, hours, minutes, and seconds) the IGMP querier has been active. | 
| QuerierExpiryTime | Time (in days, hours, minutes, and seconds) before the IGMP querier expires. | 
| QuerierIP | IP address of the IGMP querier. | 
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