IGMP multicast router discovery

Use the show ip igmp mrdisc command to display information about the IGMP multicast discovery routes. The syntax for this command is as follows.

show ip igmp mrdisc [vrf WORD <0-16>] [vrfids WORD <0-512>]

Note

This command is not supported on a node configured as the DvR Leaf within a DvR domain.

The following table shows the field descriptions for this command.

Table 1. show ip igmp mrdisc command
Field	Description
VLAN ID	Indicates the VLAN ID.
MRDISC	Indicates the status of multicast router discovery.
MAX ADV INTERVAL	Indicates the maximum number (in seconds) between successive advertisements.
MIN ADV INTERVAL	Indicates the minimum number (in seconds) between successive advertisements.
MAX INIT ADV INTERVAL	Indicates the maximum number (in seconds) between successive initial advertisements.
MAX INIT ADV	Indicates the maximum number of initial multicast advertisements after initialization.
NBR DEAD INTERVAL	Indicates the multicast router discovery dead interval — the number of seconds the multicast route neighbors for the switch must wait before assuming that the multicast router is down.
DISCOVERED RTR PORTS	Indicates the ports discovered.