This command displays information about configured loopback interfaces.
| Format | show interface loopback [loopback-id] |
| Mode | Privileged EXEC |
If you do not specify a loopback ID, the following information appears for each loopback interface on the system.
| Term | Definition |
|---|---|
| Loopback ID | The loopback ID associated with the rest of the information in the row. |
| Interface | The interface name. |
| IP Address | The IPv4 address of the interface. |
If you specify a loopback ID, the following information appears.
| Term | Definition |
|---|---|
| Interface Link Status | Shows whether the link is up or down. |
| IP Address | The IPv4 address of the interface. |
| MTU size | The maximum transmission size for packets on this interface, in bytes. |
