In the output, the DLCI number shows ???100??? and reports a status of ???deleted.??? This might
indicate that the DLCI you con?¬?gured was incorrect.
If the output of a show interface serial command displays a status of ???interface up/line
protocol down,??? this typically indicates a problem at Layer 2, the data link layer. If this is
the case, the serial interface might not be receiving the LMI keepalives from the Frame
Relay service provider. To verify that LMI messages are being sent and received and to
verify that the router LMI type matches the LMI type of the provider, use the show framerelay
lmi command, as demonstrated in Example 8-9.
Example 8-8 Verifying DLCI Con?¬?guration
RouterX# sshhooww ffrraammee--rreellaayy ppvvcc
PVC Statistics for interface Serial0/0/0 (Frame Relay DTE)
Active Inactive Deleted Static
Local 0 0 1 0
Switched 0 0 0 0
Unused 0 0 0 0
DLCI = 100, DLCI USAGE = LOCAL, PVC STATUS = DELETED, INTERFACE = Serial0/0/0
input pkts 9 output pkts 8 in bytes 879
out bytes 1024 dropped pkts 0 in pkts dropped 0
out pkts dropped 0 out bytes dropped 0
in FECN pkts 0 in BECN pkts 0 out FECN pkts 0
out BECN pkts 0 in DE pkts 0 out DE pkts 0
out bcast pkts 2 out bcast bytes 138
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
pvc create time 00:00:27, last time pvc status changed 00:00:27
Example 8-9 Verifying LMI Traf?¬?c Delivery/Receipt and LMI Type Matches Between Router
and Provider
RouterX# sshhooww ffrraammee--rreellaayy llmmii
LMI Statistics for interface Serial0/0/0 (Frame Relay DTE) LMI TYPE = CISCO
Invalid Unnumbered info 0 Invalid Prot Disc 0
Invalid dummy Call Ref 0 Invalid Msg Type 0
Invalid Status Message 0 Invalid Lock Shift 0
Invalid Information ID 0 Invalid Report IE Len 0
Invalid Report Request 0 Invalid Keep IE Len 0
Troubleshooting Frame Relay WANs 351
The output shows that 236 LMI status inquiry messages have been sent (Num Status Enq.
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