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| 4.5 |  | Troubleshooting Frame Relay |
| 4.5.2 |  | The show frame-relay lmi command |

The show frame-relay lmi command is invaluable for determining the status of the link between the router and the Frame-Relay switch. Examine the output from item A to determine the locally configured LMI type.

An incrementing “Num Status Enq. Sent” and “Received” indicates that successful router to Frame-Relay switch communications are occurring.

If the router is sending status messages but not receiving them, then check the physical layer between the router and the Frame Relay switch. Ensure that the LMI encapsulation used by the router and the Frame Relay switch are the same. By default, the LMI type used by the IOS is set to Cisco.