framerelay back-to-back

Question:

I have R1-R2 Cisco 1900 connected by serial link. There are two sub interfaces on each side connecting these two. How do we configure frame relay on these two sub interfaces without disabling keepalive?

Answer:

just make one router a frame-relay switch:

R1

enable

config t

frame-relay switching

int s1/0

encapsulation frame-relay

frame-relay intf-type dce

no shut

int s1/0.12

ip address 10.0.0.1 255.0.0.0

frame-relay interface-dlci 201

R2

enable

config t

int s1/0

encapsulation frame-relay

no shut

int s1/0.21

ip address 10.0.0.2 255.0.0.0

frame-relay Cisco 1900 router interface-dlci 201