One of the interconnections between the frame relay switch and the Frame relay switch

On many occasions, you can configure the Cisco router to become a Frame relay switch. and supports multiple routers to form a larger frame relay switch via NNI connections.

In this paper, R2 and R3 are interconnected to form a large switch to communicate R1 and R4.

R2:

No IP routing

Frame-relay switching

Interface serial1/0

Encapsulation Frame-relay

Clock rate 64000

Frame-relay Lmi-type Cisco

Frame-relay Intf-type DCE

Frame-relay Route Interface SERIAL1/1 23

!

Interface SERIAL1/1

Encapsulation Frame-relay

Clock rate 64000

Frame-relay Lmi-type Cisco

Frame-relay Intf-type Nni

Frame-relay Route Interface serial1/0 104

R3:

No IP routing

Frame-relay switching

Interface serial1/0

Encapsulation Frame-relay

Clock rate 64000

Frame-relay Lmi-type ANSI

Frame-relay Intf-type DCE

Frame-relay Route 401 Interface SERIAL1/1 23

!

Interface SERIAL1/1

Encapsulation Frame-relay

Clock rate 64000

Frame-relay Lmi-type Cisco

Frame-relay Intf-type Nni

Frame-relay Route Interface Serial1/0 401

R1:

Interface serial1/0

IP address 192.168.14.1 255.255.255.0

Encapsulation Frame-relay

R4:

Interface serial1/0

IP address 192.168.14.4 255.255.255.0

Encapsulation Frame-relay