This command displays the registered multicast groups on the interface. The argument unit/slot/port corresponds to a physical routing interface or VLAN routing interface. The keyword vlan is used to specify the VLAN ID of the routing VLAN directly instead of in a unit/slot/port format. If [detail] is specified this command displays the registered multicast groups on the interface in detail.
| Format | show ip igmp groups {unit/slot/port|vlan 1-4093 [detail]} |
| Mode | Privileged EXEC |
If you do not use the detail keyword, the following fields appear:
| Field | Definition |
|---|---|
| IP Address | The IP address of the interface participating in the multicast group. |
| Subnet Mask | The subnet mask of the interface participating in the multicast group. |
| Interface Mode | This displays whether IGMP is enabled or disabled on this interface. |
The following fields are not displayed if the interface is not enabled:
| Field | Definition |
|---|---|
| Querier Status | This displays whether the interface has IGMP in Querier mode or Non-Querier mode. |
| Groups | The list of multicast groups that are registered on this interface. |
If you use the detail keyword, the following fields appear:
| Field | Definition |
|---|---|
| Multicast IP Address | The IP address of the registered multicast group on this interface. |
| Last Reporter | The IP address of the source of the last membership report received for the specified multicast group address on this interface. |
| Up Time | The time elapsed since the entry was created for the specified multicast group address on this interface. |
| Expiry Time | The amount of time remaining to remove this entry before it is aged out. |
| Version1 Host Timer | The time remaining until the local router assumes that there are no longer any IGMP version 1 multicast members on the IP subnet attached to this interface. This could be an integer value or "-----" if there is no Version 1 host present. |
| Version2 Host Timer | The time remaining until the local router assumes that there are no longer any IGMP version 2 multicast members on the IP subnet attached to this interface. This could be an integer value or "-----" if there is no Version 2 host present. |
| Group Compatibility Mode | The group compatibility mode (v1, v2 or v3) for this group on the specified interface. |
