01 May 2011 - Lab-Rat
Cisco likes to do a lot of manual configuration of frame relay on the Routing and Switching CCIE lab. Here’s some debug commands and their output to remember.
show frame-relay pvc 102
-shows the stats for frame PVC
R1#show frame-relay pvc 102
PVC Statistics for interface Serial0/0/0 (Frame Relay DTE)
DLCI = 102, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial0/0/0
input pkts 28 output pkts 6 in bytes 1612
out bytes 394 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 6 out bcast bytes 394
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
pvc create time 00:09:42, last time pvc status changed 00:09:42
show frame-relay pvc | include STAT
- shows the DLCI usage- you want to see “Active”.
R1#show frame-relay pvc | include STAT
DLCI = 102, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial0/0/0
DLCI = 103, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial0/0/0
DLCI = 104, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial0/0/0
DLCI = 105, DLCI USAGE = UNUSED, PVC STATUS = INACTIVE, INTERFACE = Serial0/0/0
DLCI = 106, DLCI USAGE = UNUSED, PVC STATUS = INACTIVE, INTERFACE = Serial0/0/0
DLCI = 108, DLCI USAGE = UNUSED, PVC STATUS = INACTIVE, INTERFACE = Serial0/0/0
DLCI = 109, DLCI USAGE = UNUSED, PVC STATUS = INACTIVE, INTERFACE = Serial0/0/0
DLCI = 112, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial0/0/0
DLCI = 114, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial0/0/0
DLCI = 123, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial0/0/0
DLCI = 134, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial0/0/0
show frame-relay pvc summary
- shows abbreviated stats for the frame PVC
R1#show frame-relay pvc summary
Frame-Relay VC Summary
Active Inactive Deleted Static
Local 7 0 0 0
Switched 0 0 0 0
Unused 0 4 0 0
show frame-relay map
- shows the DLCI to IP mappings
R1#show frame-relay map
Serial0/0/0 (up): ip 10.10.10.2 dlci 102(0x66,0x1860), dynamic,
broadcast,, status defined, active
Serial0/0/0 (up): ip 10.10.10.3 dlci 103(0x67,0x1870), dynamic,
broadcast,, status defined, active
Serial0/0/0 (up): ip 10.10.10.4 dlci 114(0x72,0x1C20), dynamic,
broadcast,, status defined, active
Split Horizon is ON for all interface types in EIGRP.
Split horizon is DISABLED by default on physical frame relay interfaces in RIP for IPv4, but on for all other interface types.
Additional Reading
Frame FAQ
Split Horizon Issues