Refer to the exhibit:
Which two statements are true based the output of the show frame-relay lmi command issued on the Branch router? (Choose two.)
A.
LMI messages are being sent on DLCI 1023.
B.
The LMI exchange between the router and Frame Relay switch is functioning properly.
C.
LMI messages are being sent on DLCI 0.
D.
The Frame Relay switch is not responding to LMI requests from the router.
E.
The router is providing a clock signal on Serial0/0 on the circuit to the Frame Relay switch.
F.
Interface Serial0/0 is not configured to encapsulate Frame Relay.
Explanation:
Local Management Interface (LMI) messages manage the local access link between the router and the Frame Relay switch. A Frame Relay DTE can send an LMI Status Enquiry message to the switch; the switch then replies with an LMI Status message to inform the router about the DLCIs of the defined VCs, as well as the status of each VC. By default, the LMI messages flow every 10 seconds. Every sixth message carries a full Status message, which includes more complete status information about each VC. As we can see, the router has sent 61 messages, but received back none. We also know that DLCI 0 is used as this is the LMI DLCI used in ANSI. If the LMI type had been Cisco, the DLCI used is 1023.