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Jegatheesan
Beginner

Frame-Relay Switching

In this case,

I want to configure R4 as Frame-relay switch.

R1 uses DLCI 102
R2 uses DLCI 201
USE IETF encapsulation (rfc 1490)
Ensure both DTE do not build dynamic address mapping
Ensure the broadcast packets are replicated on the frame relay link
Ensure that both DTE are able to ping each other and their own Frame-Relay interface
Configure on R1 and R2 the administrative bandwidth for both Frame Relay interface to 50000 kbps.FRS.png

3 REPLIES 3
Leo Laohoo
VIP Community Legend

Please post homework questions at the Cisco Learning Network.

Georg Pauwen
VIP Expert

Hello,

 

the below should work:

 

R1

 

interface Serial2/0
bandwidth 50000
ip address 131.131.12.1 255.255.255.0
encapsulation frame-relay IETF
serial restart-delay 0
frame-relay map ip 131.131.12.2 102 broadcast IETF
no frame-relay inverse-arp

 

R2

 

interface Serial2/0
bandwidth 50000
ip address 131.131.12.2 255.255.255.0
encapsulation frame-relay IETF
serial restart-delay 0
frame-relay map ip 131.131.12.1 201 broadcast IETF
no frame-relay inverse-arp

 

R4

 

frame-relay switching
!
interface Serial2/0
description R1
no ip address
encapsulation frame-relay IETF
serial restart-delay 0
clock rate 64000
frame-relay intf-type dce
frame-relay route 102 interface Serial2/1 201
!
interface Serial2/1
description R2
no ip address
encapsulation frame-relay IETF
serial restart-delay 0
clock rate 64000
frame-relay intf-type dce
frame-relay route 201 interface Serial2/0 102

 

Martin L
VIP Advocate

GNS3 has FR switch build-in for you convince; It has to be set up but it works fine; you should be able to find old videos about FR on youtube.

 

Regards, ML
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