Configure Cisco Router as FRS

Cisco Router as a Frame Relay Switch

Students Preparing for The CCNA Exam often need to have a frame relay switch in their lab to practice for the Frame-Relay. In this post we are going to tell you how to configure  Frame-Relay Switching on a Cisco Router.
The following are the steps with topology diagram explaining the step by step configuration :

In this example we will take four routers R1, R2, R3 and R4 . The Router R2 will be working as the Frame relay Switch. Now open the GNS3 Simulator and create the following topology with the help of four Routers.

Remember to create topology using only serial cables because Frame-Relay is a Wan technology and works only on Wan links.Now open the console of Router R2 and start configuring it for Frame-Relay with the commands given below.

R2>enable

R2#configure terminal

R2(config)#frame-relay switching

R2(config)#interface s0/0

R2(config-if)#no shutdown

 R2(config-if)#no ip address

R2(config-if)#clock rate 56000

R2(config-if)#encapsulation frame-relay

R2(config-if)#frame-relay intf-type dce

R2(config-if)#frame-relay route 103 interface s0/1 301

R2(config-if)#frame-relay route 104 interface s0/1 401

R2(config-if)#interface s0/1

R2(config-if)#no shutdown

R2(config-if)#no ip address

R2(config-if)#clock rate 56000

R2(config-if)#encapsulation frame-relay

R2(config-if)#frame-relay intf-type dce

R2(config-if)#frame-relay route 301 interface s0/1 103

R2(config-if)#interface s0/2

R2(config-if)#no shutdown

R2(config-if)#no ip address

R2(config-if)#clock rate 56000

R2(config-if)#encapsulation frame-relay

R2(config-if)#frame-relay intf-type dce

R2(config-if)#frame-relay route 401 interface s0/1 104

R2(config-if)#exit

To confirm your FRS is working properly you can use the following command :

R2#show frame-relay route