FRAME-RELAY LAB on GNS(Dynamips)

FRAME-RELAY LAB on GNS(Dynamips) 

If you are going to practice Frame Relay Lab with real equitment , you will need to make one of your router work as Frame Relay Switch
here is how to do that using the following simple topology :

try to type Layer two configuration first then Layer three

configuration for 3700 Router :

this command will enable your router to act as frame relay switch :
Router(config)#frame-relay switching

now we will need to configure each interface and build each PVC

Router(config)#int ser 0/0
Router(config-if)#no ip address
Router(config-if)#encapsulation frame-relay
Router(config-if)#clock rate 64000
Router(config-if)#frame-relay intf-type dce
Router(config-if)#frame-relay route 200 interface serial 0/1 100
Router(config-if)#no sh

notice that i said to my interface s0/0 , use DLCI 200 which belong to R1 attached to you  (on serial interface 0/0 ) to connect to remote DLCI 100
also notice that your FR switch will act as DCE and your normal routers R2&R3 will act as DTE devices

Router(config-if)#int ser 0/1
Router(config-if)#no ip address
Router(config-if)#encapsulation frame-relay
Router(config-if)#clock rate 64000
Router(config-if)#frame-relay intf-type dce
Router(config-if)#frame-relay route 100 interface serial 0/0 200
Router(config-if)#no sh
Router(config-if)#exit
Router(config)#hostname sw1
sw1(config)#

configuration for R2

Router(config)#int serial 0/0
Router(config-if)#encapsulation frame-relay
Router(config-if)#ip address 10.0.0.1 255.0.0.0
Router(config-if)#no sh

configuration for R3

Router(config)#int serial 0/0
Router(config-if)#encapsulation frame-relay
Router(config-if)#ip address 10.0.0.2 255.0.0.0
Router(config-if)#no sh

do not forget to check your Frame Realy Switch with following command:

sw1#show frame-relay route
Input Intf      Input Dlci      Output Intf     Output Dlci     Status
Serial0/0       200             Serial0/1       100             active
Serial0/1       100             Serial0/0       200             active

as you can see under status teh word (active) mean that everything is ok and we have layer two connectivity btween R2 and R3
if you ever see the word (inactive) check your configuration on Frame Realy switch (3700 router) if there is any missing or mistyped command.