frame-relay map ip x.x.x.x dlci broadcast OR frame-relay interface-dlci
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
Num Status Enq. Sent 14 Num Status msgs Rcvd 14
Num Update Status Rcvd 0 Num Status Timeouts 0
Last Full Status Req 00:00:47 Last Full Status Rcvd 00:00:47
R2#sh frame pvc
Local 1 0 0 0
Switched 0 0 0 0
Unused 0 0 0 0
out bytes 0 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 0 out bcast bytes 0
5 minute input rate 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
pvc create time 05:30:57, last time pvc status changed 00:21:00
R2#sh frame map
Serial1.123 (up): ip 188.8.131.52 dlci 221(0xDD,0x34D0), static,
CISCO, status defined, active
Serial1.123 (up): ip 184.108.40.206 dlci 221(0xDD,0x34D0), static,
CISCO, status defined, active
My View on Frame-Relay:
Frame-relay can be very weird. The hard thing about frame-relay is “which frame-relay command do I use?” is the question.
The answer to the question is simple: You can use which one you want as long as all the PVC mappings are complete and connect to the correct router interface. You can mix and match frame-relay commands. Just run a ping command to each PVC (ip address) and run your debug commands:
show frame map – Should see word “Active” if working well.
show frame pvc –
show frame lmi – Sent/Received should be equal amount if working
Static Mappings Command:
frame-relay map ip (remote ip address) (local dlci) broadcast
frame-relay map ip 220.127.116.11 201 broadcast
NOTE: Broadcast is used with this command to allow RIP updates to work. But, if “frame-relay inverse-arp” is used and inverse-arp is turned on, then the command “broadcast” is not needed.
Dynamic Mappings Command:
frame-relay interface-dlci (local dlci)
frame-relay interface-dlci 201
frame-relay inverse-arp (enabled)
NOTE: frame-relay inverse-arp used to allow for dynamic mappings.
If you look at the drawing I have given you, it explains the difference between the “actual” and the “virtual/logical” layout of the frame-relay setup. What you see is not what you actually get. When I first saw the “Full-Mesh” I thought there were three actual physical ports on each router. This is not true. You have instead 3 virtual or 3 sub-interfaces on each router that set up a PVCs to each router. I think this is essential when teaching or learning frame-relay. Remember that they are virtual/logical mappings not separate physical ports.
NOTE: You need ‘broadcast’ command with “frame-relay map ip” command when using RIPv1 since it uses broadcasts to send out routing table information.
NOTE: The hard thing now is to know when to use the right frame-relay command mentioned above and which type of port setup:
Port setup types: Example:
Serial Port only Serial0
Serial Port with Multipoint option Serial0.1 multipoint
Serial Port with Point-to-Point option Serial0.1 point-to-point
Other important Commands:
no frame-relay inverse-arp
You need “broadcast” command to allow RIP updates to take place.
No need for “broadcast” command here.
frame-relay lmi-type (ansi, cisco, q933a)
Keep lmi types the same on both ends.
encapsulation frame-relay (can use – “ietf”)
Keep encap “frame-relay” for frame-relay connections
Example of R1 (Full-mesh) Frame-relay topology:
Subinterfaces on R1:
R1(config)#interface serial 0
R1(config-if)#interface serial0.200 point-to-point
R1(config-subif)#frame-relay interface-dlci 102
R1(config-subif)#ip address 172.16.1.1 255.255.255.0
R1(config-if)#interface serial0.300 point-to-point
R1(config-subif)#frame-relay interface-dlci 103
R1(config-subif)#ip address 172.16.3.1 255.255.255.0
R1(config-if)#interface serial0.400 point-to-point
R1(config-subif)#frame-relay interface-dlci 104
R1(config-subif)#ip address 172.16.4.1 255.255.255.0
Frame Relay YouTube nice! Below (Double Click to expand video Full Screen
H2o Fuel…Answer to get rid USA dependency on OPEC oil–OPEC Sucks!!!