Frame Relay Point-to-Point Configuration


Basic Frame Relay Point-to-Point Configuration on Cisco

AS you know Frame-Relay is a well-known WAN technology that generally used for backbone routers. To understand the basic configuration of Frame-Relay, there is a configuration below with three Cisco 3600 Series Router and one Frame-Relay Switch.

First of all, we will start with Frame-Relay Switch. On GNS3 create a Frame-Relay Switch and right click the Frame-Relay Switch. Configure the DLCI – port mapping like below:

1:101 10:202

1:102 11:203
After mapping, connect the routers to the Frame-Relay Switch port mentioned in the mapping via serial connection. ( R1 to port 1, R2 to port 10, R3 to port 11)

Frame Relay Point-to-Point Configuration
It is time to configure our routers. Starting with the R1 make the below configuration. Here, the Hub Router is R1.

R1 Configuration

R1(config)# no logging console
R1 (config)# int s 0/0
R1 (config-if)# no shut
R1 (config-if)# encapsulation frame-relay
R1 (config-if)# interface s0/0.1 point-to-point
R1 (config-subif)# ip address
R1 (config-subif)# frame-relay interface-dlci 101
R1 (config-fr-dlci)# exit
R1 (config-subif)# interface s0/0.2 point-to-point
R1 (config-subif)# ip address
R1 (config-subif)# frame-relay interface-dlci 102
R1 (config-fr-dlci)# exit
R1 (config-subif)# write

Now, configure the R2 for Frame-Relay. Here you can get help from “show frame-relay pvc” command.

R2 Configuration

R2 (config)# no logging console
R2 (config)# int s 0/0
R2 (config-if)# no shut
R2 (config-if)# encapsulation frame-relay
R2 (config-if)# interface serial 0/0.1 point-to-point
R2 (config-subif)# ip address

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Lesson tags: frame-relay
Back to: CCIE > WAN