Viewing the current IGMP configuration

Syntax 

show ip igmp config

Description

Displays IGMP configuration for all VLANs on the switch.

Subcommands 

show ip igmp vlan vid config

Displays IGMP configuration for a specific VLAN on the switch, including per-port data.

Example

Suppose you have the following VLAN and IGMP configurations on the switch:

VLAN ID

VLAN name

IGMP enabled

Querier

1

DEFAULT_VLAN

Yes

No

22

VLAN-2

Yes

Yes

33

VLAN-3

No

Yes

You could use the CLI to display this data as follows:

Listing of IGMP configuration for all VLANs in the switch

switch(config)# show ip igmp config

 IGMP Service Config

  Control unknown multicast [Yes] : Yes
  Forced fast leave timeout [0] : 4
  Delayed flush timeout [0] : 0

  VLAN ID VLAN Name    IGMP Enabled Querier Allowed Querier Interval
  ------- ------------ ------------ --------------- ----------------
  1       DEFAULT_VLAN Yes          No              125
  22      VLAN-2       Yes          Yes             125
  33      VLAN-3       No           Yes             125

The following version of the show ip igmp command includes the VLAN ID (vid) designation, and combines the above data with the IGMP per-port configuration:

Listing of IGMP configuration for a specific VLAN