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+ + 5.2 + Configuring Frame Relay 
  + 5.2.6 + Verifying the Frame Relay + configuration 
+ + + + + + +
+ +

+ The + show interfaces + command displays information regarding the encapsulation and Layer 1 + and Layer 2 status. It also displays information about the following:

+
    +
  • + The LMI type
    • +
  • + The LMI DLCI
    • +
  • + The Frame Relay data terminal equipment/data circuit-terminating + equipment (DTE/DCE) type
    • +
+ +

+ Normally, the router is considered a data terminal equipment (DTE) + device. However, a Cisco router can be configured as a Frame Relay switch. + The router becomes a data circuit-terminating equipment (DCE) device when it + is configured as a Frame Relay switch. +

+ +

+ Use the + show frame-relay lmi + command to display LMI traffic statistics. + For example, + this command demonstrates the number of status messages exchanged between the local + router and the local Frame Relay switch.

+ +

+ Use the + show frame-relay pvc [interface interface] [dlci] + command to display the status of each configured PVC as well as + traffic statistics. + This command is + also useful for viewing the number of BECN and FECN packets received by the + router. The PVC status can be active, inactive, or + deleted.

+ +

+ The + show frame-relay pvc + command displays the status of all the PVCs configured on the router. + Specifying a PVC will show the status of only that PVC. In Figure + , the + + show frame-relay pvc 100 + command displays the status of only PVC 100.

+ +

+ Use the + show frame-relay map + command to display the current map entries and information about the + connections. The following information interprets the + + show frame-relay map + output that appears in Figure + :

+
    +
  • + 100 is the decimal value of the local DLCI number
    • +
  • + 0x64 is the hex conversion of the DLCI number, 0x64 = 100 decimal
    • +
  • + 0x1840 is the value as it would appear on the wire because of the way + the DLCI bits are spread out in the address field of the Frame Relay frame
    • +
  • + 10.140.1.1 is the IP address of the remote router, dynamically learned + via the Inverse ARP process
    • +
  • + Broadcast/multicast is enabled on the PVC
    • +
  • + PVC status is active
    • +
+ +

+ To clear dynamically created Frame Relay maps, which are created using + Inverse ARP, use the + clear frame-relay-inarp + command.    

+ + + + + + +
+ + +
+ + + + + +
+ + + + + +
  +

+ + + + Lab Activity

+ +

e-Lab Activity: + + + + show + frame-relay pvc

+ +

In this activity, the student will demonstrate how to use the + + + show frame-relay pvc + command to display statistics about PVCs for Frame Relay + interfaces.

+ +

+

+
+

    +

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