Frame Relay Configuration

Sometime, in some stuff you need a frame relay configuration. If you know about the concept behind Frame Relay, you can easily understand about MPLS, ATM, etc. In this tutorial Let's see how to configure the routers which shown in the diagram.

FRS Configuration

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In global configuration mode
# frame-relay switching
# int s0/0
# no ip add
# encapsulation frame-relay
# frame-relay intf-type dce
# clock rate 64000
# frame-relay route 102 interface s0/1 201
# frame-relay route 103 interface s0/2 301
# no shut


# int s0/1
# no ip add
# encapsulation frame-relay
# frame-relay intf-type dce
# clock rate 64000
# frame-relay route 201 interface s0/0 102
# no shut

# int s0/2
# no ip add
# encapsulation frame-relay
# frame-relay intf-type dce
# clock rate 64000
# frame-relay route 301 interface s0/0 103
# no shut

#sh frame-relay route (still inactive)

R1 Configuration
-----------------------------------------------------------------------------------------
In global configuration mode
# int s0/0
# no ip address
# encapsulation frame-relay
# no shut
# exit

# int s0/0.1 multipoint
# ip add 10.10.10.1 255.255.255.248
# frame-relay map ip 10.10.10.2 102 broadcast
# frame-relay map ip 10.10.10.3 103 broadcast

R2 Configuration
-----------------------------------------------------------------------------------------
In global configuration mode
# int s0/0
# no ip address
# encapsulation frame-relay
# no shut
# exit

# int s0/0.1 multipoint
# ip add 10.10.10.2 255.255.255.248
# frame-relay map ip 10.10.10.1 201 broadcast

R3 Configuration
-----------------------------------------------------------------------------------------
In global configuration mode
# int s0/0
# no ip address
# encapsulation frame-relay
# no shut
# exit

# int s0/0.1 multipoint
# ip add 10.10.10.3 255.255.255.248
# frame-relay map ip 10.10.10.1 301 broadcast

# sh frame-relay route (active)
# sh frame-relay map (status-active)

Now you can ping through Frame Relay
R1 # ping 10.10.10.3 (okay)