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Cisco Home Lab Tutorial: Buying And Developing a Body Relay Change
One of several major subjects on the CCNA and CCNP exams is Frame Relay. Additionally, Body Relay is one of the most well-liked WAN technolgies in today’s networks. Acquiring fingers-on experience with Frame Relay in Cisco networks isn’t just a good suggestion, it’s a necessity. Permit’s confront it, your employer will almost certainly get a little touchy if You begin experimenting with the community’s Frame Relay set up.
To apply all of your significant Body Relay commands for the examinations, you need a Doing the job Frame Relay cloud in your home lab. A creation network’s Frame cloud consists of many Body switches, however, if you select wisely, an individual Cisco router can act as your own home lab’s total Body cloud!
Ahead of we look at the configuration of such a router (hereafter called a “frame relay swap”), let’s think about the Bodily necessities.
The more serial ports you might have, the greater. You'll want to obtain a router with not less than 4 serial ports. For frame switching needs, it doesn’t matter if the ports are synchronous or asynchronous – you just need to have the https://informatique-paris.net ports.
Additionally, you will want some DTE/DCE cables. The DCE finish of your cables will probably be connected to the frame swap.
An incredible configuration for a CCNA apply lab is 3 routers that serve as “manufacturing” routers, and also a 4th router for a body relay switch. (You’ll want an entry server in addition, but that’s One more posting.)
What I use in my university student and shopper pods is really a setup the place R1 is connected to the frame change’s S1 port, R2 is connected to S2 within the body switch, and R3 is connected to the frame swap’s S3 port.
Now will come the tough part – the configuration. A body relay change’s config could be hard to find, so right here’s a copy of mine. Shell out specific awareness to the config on ports s1, s2, and s3.
version twelve.0
services timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname FRAME_SWITCH
ip subnet-zero
no ip domain-lookup
frame-relay switching
interface Ethernet0
no ip address
no ip directed-broadcast
shutdown
interface Serial0
ip address 10.one.one.two 255.255.255.0
clockrate 56000
interface Serial1
encapsulation body-relay
logging party subif-hyperlink-standing
logging event dlci-position-adjust
no body-relay inverse-arp
frame-relay intf-style dce
body-relay route 122 interface Serial2 221
body-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 tackle a hundred and fifty.1.one.1 255.255.255.252
encapsulation ppp
dialer map ip one hundred fifty.1.1.two name R2 broadcast 2335552221
dialer-group 1
ip classless
dialer-record one protocol ip allow
line con 0
exec-timeout 0 0
logging synchronous
transportation enter none
line aux 0
line vty 0 4
login
end
The main element command in the worldwide configuration is frame-relay switching. You needs to have this configured before you decide to can configure the interfaces.
The interfaces is going to be configured With all the frame route command. Let’s Examine what Every single worth implies inside the command frame-relay route 122 interface Serial2 221.
body-relay route – the command
122 – the incoming DLCI on this interface
interface serial2 – the interface the information are going to be sent out
221 – the outgoing DLCI
This command on S1 implies that something that is available in on this port on DLCI 122 will probably be despatched out interface serial2 on DLCI 221.
It’s a good idea to hard-code the interfaces to work as DCEs While using the body intf-type dce command. Given that these interfaces are acting as DCEs, the clockrate command is required for the road protocol to return up.
Once you’ve configured your frame swap as demonstrated and have configured the body map statements within the “output” routers, you may check the body switch configuration. To the frame switch, run the command show frame route .
FRAME_SWITCH#exhibit body route
Input Intf Enter Dlci Output Intf Output Dlci Standing
Serial1 122 Serial2 221 Lively
Serial1 123 Serial3 321 Energetic
Serial2 221 Serial1 122 Lively
Serial3 321 Serial1 123 Energetic
You need to see “active” for each of the interfaces. If you see “deleted”, ensure that your body change interfaces are open When they are, Check out the router configs.
Remember that you'll be able to even now configure routing protocols to operate on ports you’re not making use of for body switching. The router we utilised here had an ethernet port and BRI port, as well as the BRI port has actually been configured as Component of the manufacturing network. Functioning body switching would not disable IP routing.
Acquiring and configuring your individual frame relay switch is an invaluable component of your Cisco education and learning. By training your frame instructions and configuring frame connections more than your own body relay cloud, you’re sprucing your Cisco techniques and attaining understanding that cannot be duplicated by simulator applications.
