Three Router Frame-Relay Lab

CONFIGURATION OF FRAME RELAY ROUTER:

Router>enable

Router#conf t

Router(config)#hostname FR

FR(config)#enable password cisco

FR(config)#frame-relay switching

FR(config-if)#int s0

FR(config-if)# no ip address

FR(config-if)# encapsulation frame-relay

FR(config-if)# clockrate 64000

FR(config-if)# frame-relay lmi-type ansi

FR(config-if)# frame-relay intf-type dce

FR(config-if)# frame-relay route 100 interface Serial1 200

FR(config-if)# no shut

FR(config-if)#int s1

FR(config-if)# no ip address

FR(config-if)# encapsulation frame-relay

FR(config-if)# clockrate 64000

FR(config-if)# frame-relay lmi-type ansi

FR(config-if)# frame-relay intf-type dce

FR(config-if)# frame-relay route 200 interface Serial0 100

FR(config-if)# no shut

FR(config-line)#line vty 0 4

FR(config-line)# password cisco

FR(config-line)# login

FR(config-line)#end

FR#write

CONFIGURATION OF ROUTER 1

Router>Enable

Router#conf t

Router(config)#hostname R1

R1(config)#enable password cisco

R1(config-line)#line vty 0 4

R1(config-line)# password cisco

R1(config-line)# login

R1(config)#int loopback 0

R1(config-if)#ip add 1.1.1.1 255.255.255.255

R1(config-if)#no shut

R1(config-if)#int s0

R1(config-if)# encapsulation frame-relay

R1(config-if)# frame-relay lmi-type ansi

R1(config-if)# no shut

R1(config)#int Serial0.1 point-to-point

R1(config-subif)# ip address 192.168.1.1 255.255.255.0

R1(config-subif)# frame-relay interface-dlci 100

R1(config)#ip route 0.0.0.0 0.0.0.0 192.168.1.2

R1#write

CONFIGURATION OF ROUTER 2:

Router>Enable

Router#conf t

Router(config)#hostname R2

R2(config)#enable password cisco

R2(config-line)#line vty 0 4

R2(config-line)# password cisco

R2(config-line)# login

R2(config)#int loopback 0

R2(config-if)#ip add 2.2.2.2 255.255.255.255

R2(config-if)#no shut

R2(config)#int s0

R2(config-if)# no ip address

R2(config-if)# encapsulation frame-relay

R2(config-if)# frame-relay lmi-type ansi

R2(config-if)# no shut

R2(config-if)#interface Serial0.1 point-to-point

R2(config-subif)# ip address 192.168.1.2 255.255.255.0

R2(config-subif)# frame-relay interface-dlci 200

R2(config-if)#no ip classless

R2(config)#ip route 0.0.0.0 0.0.0.0 192.168.1.1

R2#write

TESTING CONNECTIVITY ROUTER 1:

R1#ping 192.168.1.2

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.1.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 32/32/36
ms

R1#ping 192.168.1.1

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 60/61/64
ms

R1#show frame-relay map
Serial0.1 (up): point-to-point dlci, dlci 100(0×64,0×1840), broadcast
status defined, active

R1#sho ip route
(Output omitted)

Gateway of last resort is 192.168.1.2 to network 0.0.0.0

1.0.0.0/32 is subnetted, 1 subnets
C 1.1.1.1 is directly connected, Loopback0
C 192.168.1.0/24 is directly connected, Serial0.1
S* 0.0.0.0/0 [1/0] via 192.168.1.2
R1#

TESTING CONNECTIVITY ROUTER 2:

R2#ping 192.168.1.1

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 32/32/36 ms

R2#ping 192.168.1.2

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 192.168.1.2, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 60/62/68 ms

R2#sho frame map

Serial0.1 (up): point-to-point dlci, dlci 200(0xC8,0×3080), broadcast

status defined, active

R2#sho ip route

(Output omitted)

Gateway of last resort is 192.168.1.1 to network 0.0.0.0

2.0.0.0/32 is subnetted, 1 subnets

C 2.2.2.2 is directly connected, Loopback0

C 192.168.1.0/24 is directly connected, Serial0.1

S* 0.0.0.0/0 [1/0] via 192.168.1.1

R2#

Frame Relay Monitoring

Router# show interface or show interface serial are the most common commands which show a wide variety of information including showing you the DLCI used for LMI. When monitoring Frame Relay information on the router, a number of items are typically monitored including DLCI and LMI.

Router# debug frame-relay LMI command that you would use to monitor LMI information

Frame Relay Troubleshooting

If a Frame-Relay DLCI attains a state other than “active” meaning inactive or deleted, you can check the Frame-Relay configuration to make sure its configuration matches the configuration of the router acting as the Frame-Relay DTE device.

Router# show frame-relay pvc – can be used to verify that the Frame-Relay PVCs are active and operational

Router# show frame-relay route – can be used to get a listing of the status of all the PVC’s

Router# show frame-relay map – can be used to verify that inverse ARP has successfully mapped remote network layer addresses to the appropriate DLCI.