Troubleshooting Frame Relay
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show frame-relay pvc
When you issue the show frame-relay pvc command, you get output that
contains the LMI status of every DLCI on the router, or you may be more
specific and check only certain PVCs.
There are two types of DLCI usage: local DTE and switched. Things to
check for in the output of the command include dropped frames, congestion
notifications, and discard-eligible packets.
Here is a sample output. The data provided includes PVC information. It
has the input and output packets for the interface, as well as FECN and
BECN packet information. These statistics are available for every DLCI PVC
on the router. Here, only two PVCs are shown:
Router_A#show frame-relay pvc
PVC Statistics for interface Serial0 (Frame Relay DTE)
DLCI = 18, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE,
INTERFACE = Serial0.4
input pkts 37515875 output pkts 38589330 in bytes
4113557032
out bytes 2755391175 dropped pkts 16 in FECN pkts 0
in BECN pkts 0 out FECN pkts 0 out BECN pkts 0
in DE pkts 315420 out DE pkts 0
pvc create time 13w4d, last time pvc status changed
06:40:12
DLCI = 19, DLCI USAGE = UNUSED, PVC STATUS = ACTIVE,
INTERFACE = Serial0
input pkts 38 output pkts 0 in bytes 8372
out bytes 0 dropped pkts 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
pvc create time 13w4d, last time pvc status changed 7w4d
Num Pkts Switched 0
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