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Use the
debug frame-relay lmi
command to determine whether the router and the Frame Relay switch are
sending and receiving LMI packets properly.
 The “out” is an LMI status
message sent by the router. The “in” is a message received from the Frame
Relay switch. “type 0” is a full LMI status message. “type 1” is an LMI
exchange. The “dlci 100, status 0x2” means that the status of DLCI 100 is
active. The possible values of the status field are as follows:
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0x0 – Added/inactive means that the switch has this DLCI
programmed but for some reason it is not usable. The reason could possibly
be the other end of the PVC is down.
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0x2 – Added/active means the Frame Relay switch has the DLCI
and everything is operational.
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0x4 – Deleted means that the Frame Relay switch does not have
this DLCI programmed for the router, but that it was programmed at some
point in the past. This could also be caused by the DLCIs being reversed
on the router, or by the PVC being deleted by the service provider in the
Frame Relay cloud.
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Lab Activity
e-Lab Activity:
Frame Relay Configuration
In this activity, the student will work through several tasks
for configuring basic Frame Relay.
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Web Links