Most budding beginners trying to build up there home lab for the CCNA and higher exam's will be looking to setup, configure and troubleshoot frame relay scenarios at some point. In this first video in a series of many, I'll show you how to configure the Cisco 3640 Router with an NM-4A/S module to act as a frame relay switch.

The Network:

Video of the Configuration:

After configuring the standard router settings (hostname, enable secret, etc) you must tell the router to act as a frame relay switch by doing the following

R0(config)#frame-relay switching

Once the router has been configured to act as a frame relay switch, the interfaces must be configured. In order for the DTE router's to work correctly, you must set the following: 

• The clock rate
• The encapsulation (frame-relay)
• The LMI type
• The interface type (DCE)
• Frame relay routes

In the video, and the example syntax for the frame-relay route commands, the idea is as follows: for a route such as frame-relay route 100 interface serial 1/2 300 the command is saying packages with a source DLCI of 100 destined for DLCI 300, switch out interface serial 1/2 .

R0(config)#interface serial 1/0
R0(config-if)#no shutdown
R0(config-if)#encapsulation frame-relay
R0(config-if)#clock rate 64000
R0(config-if)#frame-relay lmi-type cisco
R0(config-if)#frame-relay intf-type dce
R0(config-if)#frame-relay route 100 interface serial 1/2 300
R0(config-if)#interface serial 1/1
R0(config-if)#no shutdown
R0(config-if)#encapsulation frame-relay
R0(config-if)#clock rate 64000
R0(config-if)#frame-relay lmi-type cisco
R0(config-if)#frame-relay intf-type dce
R0(config-if)#frame-relay route 200 interface serial 1/2 301
R0(config-if)#interface serial 1/2
R0(config-if)#no shutdown
R0(config-if)#encapsulation frame-relay
R0(config-if)#clock rate 64000
R0(config-if)#frame-relay lmi-type cisco
R0(config-if)#frame-relay intf-type dce
R0(config-if)#frame-relay route 300 interface serial 1/0 100
R0(config-if)#frame-relay route 301 interface serial 1/1 200

Since this example topology utilizes a hub with a single interface, the hub connected interface on the DCE has two frame-relay routes. Once you've done you configuration dont forget to save it!.

R0(config-if)#^Z
R0#copy run start
Destination filename [startup-config]?
Building configuration...
[OK]
R0#

And that's it! Watchout for more videos which will build ontop of this one.