If you are studying for the TSHOOT exam,
it is a good idea to familiarize yourself with the topology. I've
been working on creating a lab that mocks the TSHOOT topology and it has
forced me to recall how to setup a Cisco router to act like a Frame Relay
switch.
Here is the topology that I've built. As
you can see, it closely resembles the topology that Cisco has provided on their
site. Since their doc doesn't provide specific DLCIs, I've used the most
logical numbers I could think of.
The first step in configuring a Cisco
router to act like a frame relay switch is to enable frame relay switching:
FR(config)#frame-relay
switching
Once enabled, you then configure the serial
interfaces connected to the other routers.
interface Serial0/0
description Link to R4
no ip address
encapsulation frame-relay
clock rate 64000
no frame-relay inverse-arp
frame-relay lmi-type ansi
frame-relay intf-type dce
frame-relay route 403 interface Serial0/1 304
!
interface Serial0/1
description Link to R3
no ip address
encapsulation frame-relay
clock rate 64000
no frame-relay inverse-arp
frame-relay lmi-type ansi
frame-relay intf-type dce
frame-relay route 302 interface Serial0/2 203
frame-relay route 304 interface Serial0/0 403
!
interface Serial0/2
description Link to R2
no ip address
encapsulation frame-relay
clock rate 64000
no frame-relay inverse-arp
frame-relay lmi-type ansi
frame-relay intf-type dce
frame-relay route 201 interface Serial0/3 102
frame-relay route 203 interface Serial0/1 302
!
interface Serial0/3
description Link to R1
no ip address
encapsulation frame-relay
clock rate 64000
no frame-relay inverse-arp
frame-relay lmi-type ansi
frame-relay intf-type dce
frame-relay route 102 interface Serial0/2 201
Then all you need to do is configure the
other routers and connect them to your "switch". Here are the configs
for the other router serial interfaces for reference:
!R1
interface Serial0/0
no ip address
encapsulation frame-relay
no frame-relay inverse-arp
frame-relay lmi-type ansi
!
interface Serial0/0.12 point-to-point
ip address 10.1.1.1 255.255.255.252
frame-relay interface-dlci 102
!R2
interface Serial0/0
no ip address
encapsulation frame-relay
no frame-relay inverse-arp
frame-relay lmi-type ansi
!
interface Serial0/0.12
point-to-point
ip address 10.1.1.2 255.255.255.252
frame-relay interface-dlci 201
!
interface Serial0/0.23
point-to-point
ip address 10.1.1.5 255.255.255.252
frame-relay interface-dlci 203
!R3
interface Serial0/0
no ip address
encapsulation frame-relay
no frame-relay inverse-arp
frame-relay lmi-type ansi
!
interface Serial0/0.23
point-to-point
ip address 10.1.1.6 255.255.255.252
frame-relay interface-dlci 302
!
interface Serial0/0.34
point-to-point
ip address 10.1.1.9 255.255.255.252
frame-relay interface-dlci 304
!R4
interface Serial0/0
no ip address
encapsulation frame-relay
no frame-relay inverse-arp
frame-relay lmi-type ansi
!
interface Serial0/0.34
point-to-point
ip address 10.1.1.10 255.255.255.252
frame-relay interface-dlci 403
References used for this configuration are
as follows:
Cisco Press Book - Cisco Frame Relay Configurations Chapter
(ciscopress.com)
Comprehensive Guide to Configuring and Troubleshooting Frame
Relay (cisco.com)
TSHOOT Topology PDF (cisco.com)
---From http://tekcert.com/
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Thanks for sharing poe switches
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