How to configure Frame Relay Point-to-Point

What is Frame Relay?

Frame Relay Point-to-Point Topology:

Step 1: Configure Frame Relay Switch on GNS3

 

Step 2: Turn on Frame relay Encapsulation,

HQ(config)#interface serial 1/0

HQ(config-if)#encapsulation frame-relay

HQ(config-if)#exit

HQ(config-if)#no shutdown  >> put this command after create all sub interface.

Create sub interface in HQ router:

HQ(config)#interface serial 1/0.102 point-to-point

HQ(config-subif)#ip address 192.168.1.1 255.255.255.252

HQ(config-subif)#frame-relay interface-dlci 102

HQ(config-fr-dlci)#exit

HQ(config)#interface serial 1/0.103 point-to-point

HQ(config-subif)#ip address 192.168.2.1 255.255.255.252

HQ(config-subif)#frame-relay interface-dlci 103

HQ(config-fr-dlci)#exit

Note: same configuration for all sub interfaces

Step 3: Configure branches

Branch1(config)#interface serial 1/0

Branch1(config-if)#encapsulation frame-relay

Branch1(config-if)#exit

Branch1(config-if)#no shutdown >> put this command after create all sub interface.

Create sub interface in Branch router

Branch1(config)#interface serial 1/0.201 point-to-point

Branch1(config-subif)#ip address 192.168.1.2 255.255.255.252

Branch1(config-subif)#frame-relay interface-dlci 201

Branch1(config-fr-dlci)#exit

Note: same configuration for all sub interfaces and also other branches 

Frame Relay Troubleshoot Command:

HQ#show frame-relay map

HQ#show frame-relay lmi

HQ#show frame-relay pvc

Here i troubleshoot about (#show frame-relay map) Deleted status of frame-relay MAP:
I going to establish new connection between Branch1(105) and Branch2(501), after complete configuration the status of "#show frame-relay map" command (Same output on both router)

this may happened, cause the DLCI does not on frame-relay switch or configured. so added the DLCI into frame-relay switch.

Frame Relay have slower update process. so wait for some time and see output of command
#show frame-relay map: Everything will be fine...

Running Configuration of all Routers:

Router HQ:

!

interface Loopback0

 ip address 200.200.200.1 255.255.255.0

!

interface Serial1/0

 no ip address

 encapsulation frame-relay

 serial restart-delay 0

 no dce-terminal-timing-enable

!

interface Serial1/0.102 point-to-point

 ip address 192.168.1.1 255.255.255.252

 frame-relay interface-dlci 102  

!

interface Serial1/0.103 point-to-point

 ip address 192.168.2.1 255.255.255.252

 frame-relay interface-dlci 103  

!

interface Serial1/0.104 point-to-point

 ip address 192.168.3.1 255.255.255.252

 frame-relay interface-dlci 104  

!

 

Router Branch1:

!

interface Loopback0

 ip address 172.16.100.1 255.255.255.0

!

interface Serial1/0

 no ip address

 encapsulation frame-relay

 serial restart-delay 0

 no dce-terminal-timing-enable

!

interface Serial1/0.105 point-to-point

 ip address 192.168.4.1 255.255.255.252

 frame-relay interface-dlci 105  

!

interface Serial1/0.201 point-to-point

 ip address 192.168.1.2 255.255.255.252

 frame-relay interface-dlci 201  

!

Router Branch2:

!

interface Loopback0

 ip address 10.100.200.1 255.255.255.0

!

interface Serial1/0

 no ip address

 encapsulation frame-relay

 serial restart-delay 0

 no dce-terminal-timing-enable

!

interface Serial1/0.301 point-to-point

 ip address 192.168.2.2 255.255.255.252

 frame-relay interface-dlci 301  

!

interface Serial1/0.501 point-to-point

 ip address 192.168.4.2 255.255.255.252

 frame-relay interface-dlci 501  

!

Router Branch3:

!

interface Serial1/0

 no ip address

 encapsulation frame-relay

 serial restart-delay 0

 no dce-terminal-timing-enable

!

interface Serial1/0.401 point-to-point

 ip address 192.168.3.2 255.255.255.252

 frame-relay interface-dlci 401  

!