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Cisco Property Lab Tutorial: Acquiring And Developing a Body Relay Change
Among the list of main topics on your CCNA and CCNP examinations is Frame Relay. Moreover, Body Relay is one of the most well-liked WAN technolgies in currently’s networks. Receiving fingers-on working experience with Frame Relay in Cisco networks isn’t just a good suggestion, it’s a necessity. Allow’s deal with it, your employer will get just a little Sensitive if You begin experimenting along with your network’s Frame Relay setup.
To follow all of your essential Frame Relay instructions on your exams, You will need a Doing the job Body Relay cloud in your house lab. A generation community’s Body cloud includes a great deal of Body switches, but if you end up picking sensibly, one Cisco router can work as your home lab’s complete Frame cloud!
Right before we consider the configuration of this kind of router (hereafter often called a “body relay swap”), Enable’s consider the physical requirements.
The more serial ports you've, the better. You need to receive a router with at least four serial ports. For body switching functions, it doesn’t issue If your ports are synchronous or asynchronous – you just want the ports.
You will also require some DTE/DCE cables. The DCE end of the cables will probably be connected to the body change.
A fantastic configuration for your CCNA practice lab is 3 routers that serve as “production” routers, and a 4th router as being a body relay change. (You’ll want an accessibility server too, but that’s A further short article.)
What I take advantage of in my college student and customer pods is usually a set up in which R1 is connected to the body swap’s S1 port, R2 is connected to S2 to the body swap, and R3 is connected to the frame swap’s S3 port.
Now will come the tricky portion – the configuration. A body relay switch’s config might be hard to find, so listed here’s a duplicate of mine. Pay back particular interest on the config on ports s1, s2, and s3.
Variation 12.0
assistance timestamps debug uptime
provider timestamps log uptime
no services password-encryption
!
hostname FRAME_SWITCH
ip subnet-zero
no ip area-lookup
body-relay switching
interface Ethernet0
no ip address
no ip directed-broadcast
shutdown
interface Serial0
ip deal with ten.1.1.2 255.255.255.0
clockrate 56000
interface Serial1
encapsulation body-relay
logging celebration subif-backlink-status
logging occasion dlci-standing-transform
no frame-relay inverse-arp
body-relay intf-sort dce
body-relay route 122 interface Serial2 221
frame-relay route 123 interface Serial3 321
interface Serial2
body-relay route 221 interface Serial1 122
interface Serial3
body-relay route 321 interface Serial1 123
interface BRI0
ip deal with one hundred fifty.1.one.1 255.255.255.252
encapsulation ppp
dialer map ip 150.1.1.2 name R2 broadcast 2335552221
dialer-group one
ip classless
dialer-listing one protocol ip allow
line con 0
exec-timeout 0 0
logging synchronous
transport input none
line aux 0
line vty 0 four
login
finish
The main element command in the worldwide configuration is frame-relay switching. You need to have this configured before you can configure the interfaces.
The interfaces is going to be configured Together with the body route command. Permit’s Consider what Each individual benefit indicates while in the command frame-relay route 122 interface Serial2 221.
frame-relay route – the command
122 – the incoming DLCI on this interface
interface serial2 – the interface the info will be despatched out
221 – the outgoing DLCI
This command on S1 signifies that anything that comes in on this port on DLCI 122 is going to be despatched out interface serial2 on DLCI 221.
It’s a smart idea to tricky-code the interfaces to work as DCEs with the body intf-sort dce command. Considering that these interfaces are acting as DCEs, the clockrate command is needed for the line protocol to come up.
As you’ve configured your frame change as revealed and have configured the body map statements about the “output” routers, you are able to test the frame switch configuration. On the frame change, operate the command display frame route .
FRAME_SWITCH#clearly show frame route
Input Intf Input Dlci Output Intf Output Dlci Standing
Serial1 122 Serial2 221 active
Serial1 123 Serial3 321 Assistance informatique Informatique-Paris Energetic
Serial2 221 Serial1 122 Lively
Serial3 321 Serial1 123 Energetic
You must see “active” for all of the interfaces. If the thing is “deleted”, ensure that your frame change interfaces are open if they are, check the router configs.
Keep in mind that you could however configure routing protocols to run on ports that you simply’re not utilizing for body switching. The router we utilised in this article experienced an ethernet port and BRI port, plus the BRI port is configured as Section of the manufacturing community. Operating body switching won't disable IP routing.
Getting and configuring your own personal body relay change is an invaluable element of your Cisco education and learning. By working towards your frame commands and configuring body connections about your personal frame relay cloud, you’re sprucing your Cisco skills and getting knowledge that can not be duplicated by simulator programs.