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My Objectives :-
· On R1, create the sub-interface Serial0/0.122 and assign it the interface DLCI of122 and the IP Address of172.18.12.1/30 then create interface Serial0/0.123 and assign it the IP Address172.18.13.1/30
· On R2, create the sub-interface Serial0/0.221 and assign it the interface DLCI of221 and the IP Address of172.18.12.2/30
· On R3, create the sub-interface Serial0/0.321 and assign it the interface DLCI of321 and the IP Address of172.18.13.2/30
· Verify connectivity using the show frame-relay pvc and ping commands on R1.
On R1, create the sub-interface Serial0/0.122 and assign it the interface DLCI of122 and the IP Address of172.18.12.1/30 then create interface Serial0/0.123 and assign it the ip address172.18.13.1/30
R1>enable
R1#configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
R1(config)#interface Serial0/0.122 point-to-point
R1(config-subif)#ip address172.18.12.1255.255.255.252
R1(config-subif)#frame-relay interface-dlci122
R1(config-fr-dlci)#exit
R1(config-subif)#interface Serial0/0.123 point-to-point
R1(config-subif)#ip address172.18.13.1255.255.255.252
R1(config-subif)#frame-relay interface-dlci123
R1(config-subif)#end
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On R2, create the sub-interface Serial0/0.221 and assign it the interface DLCI of221 and the IP Address of172.18.12.2/30
R2>enable
R2#configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
R2(config)#interface Serial0/0.221 point-to-point
R2(config-subif)#ip add172.18.12.2255.255.255.252
R2(config-subif)#frame-relay interface-dlci221
R2(config-fr-dlci)#end
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On R3, create the sub-interface Serial0/0.321 and assign it the interface DLCI of321 and the IP Address of172.18.13.2/30
R3>enable
R3#configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
R3(config)#interface Serial0/0.321 point-to-point
R3(config-subif)#ip add172.18.13.2255.255.255.252
R3(config-subif)#frame-relay interface-dlci321
R3(config-fr-dlci)#end
Verify connectivity using the show frame-relay pvc and ping commands on R1.
R1#show frame-relay pvc PVC Statistics for interface Serial0/0 (Frame Relay DTE) Active Inactive Deleted Static Local 2 0 0 0 Switched 0 0 0 0 Unused 2 0 0 0 DLCI =122, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial0/0.122 input pkts20 output pkts19 in bytes5395 out bytes5187 dropped pkts0 in pkts dropped0 out pkts dropped0 out bytes dropped0 in FECN pkts0 in BECN pkts0 out FECN pkts0 out BECN pkts0 in DE pkts0 out DE pkts0 out bcast pkts14 out bcast bytes4667 5 minute input rate0 bits/sec,0 packets/sec 5 minute output rate0 bits/sec,0 packets/sec pvc create time00:14:33, last time pvc status changed00:14:33 DLCI =123, DLCI USAGE = LOCAL, PVC STATUS = ACTIVE, INTERFACE = Serial0/0.123 input pkts22 output pkts20 in bytes6045 out bytes4380 dropped pkts0 in pkts dropped0 out pkts dropped0 out bytes dropped0 in FECN pkts0 in BECN pkts0 out FECN pkts0 out BECN pkts0 in DE pkts0 out DE pkts0 out bcast pkts10 out bcast bytes3340 5 minute input rate0 bits/sec,0 packets/sec 5 minute output rate0 bits/sec,0 packets/sec pvc create time00:17:27, last time pvc status changed00:17:27
For understanding this please read following article
http://www.freeccnaworkbook.com/workbooks/ccna/configuring-point-to-point-frame-relay-sub-interfaces
