WHAT IS BGP
1. BGP IS A STANDERISED EXTERIOR GATEWAY PROTOCOL.
2. DESIGNED TO EXCHANGE ROUTING AND REACHABILITY INFORMATION AMONG AUTONOMOUS SYSTEM (AS) NUMBER ON THE INTERNET.
3. EACH BGP STORE INFORMATION
ABOUT HOW TO REACH OTHER NETWORK.
FEATURES OF BGP
1. CONNECT MULTI AS NUMBER.
2. KNOWN AS MULTI DOMAIN ROUTING.
3. MOSTLY USED FOR ISP LEVEL NETWORK.
4. IT IS AN EXTERIOR ROUTING PROTOCOL.
5. INTER DOMAIN ROUTING PROTOCOL.
6. USED FOR INTERNET COMMUNICATION SYSTEM
7. NUMBER OF HOPES IS EQUAL AS NUMBER.
8. IT IS A PATH VECTOR ROUTING PROTOCOL.
9. SLOW ROUTING DECISIONS.
10. IT IS RUN OVER TCP .
11. BGP SUPPORTED SECURITY.
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BGP MESSAGE
CONFIGURATION BGP
SWITCH AND
ROUTER CAN TAKE ANY MODEL OF AND
AND ALSO YOU HAVE TO TAKE AFTER THAT PC AND A LAPTOP.
2. AFTER THAT ASSIGN A IP ADDRESS IN ALL DEVICES.
STEP 1
Router(config)# inter gig0/0
Router(config-if)# ip address 1.1.1.1 255.0.0.0
Router(config-if)# no shutdown
Router(config)#inter gig0/1
Router(config-if)#ip address 192.168.1.1 255.255.255.0
Router(config-if)#no shutdown
GP TO R2 CONFIGURATION MODE AND ENTER COMMANDS
Router(config)# inter gig0/0
Router(config-if)# ip address 1.1.1.2 255.0.0.0
Router(config-if)# no shutdown
Router(config)#inter gig0/1
Router(config-if)#ip address 192.165.1.1 255.255.0.0
Router(config-if)#no shutdown
AFTER THAT GO TO PC 1 "DESKTOP" AND CLICK "IP CONFIGURATION" AND ENTER IP ADDRESS SAME AS IT IS LAPTOP 1.
STEP 2
Router(config)# ROUTER BGP 20
Router(config-router)# network 1.1.1.0
Router(config-router)# network 192.168.1.0
Router(config-router)# neighbor 172.168.1.1 remote-as 30
Router(config-router)# neighbor 1.1.1.2 remote-as 30
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GO TO R2 CONFIGURATION MODE AND ENTER COMMANDS.
Router(config)# ROUTER BGP 30
Router(config-router)# network 1.1.1.0
Router(config-router)# network 172.165.0.0
Router(config-router)# neighbor 192.168.1.1 remote-as 20
Router(config-router)# neighbor 1.1.1.21 remote-as 20
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YOU SAW THAT THERE IS COMMUNICATION BETWEEN THE SCHOOL LAN AND UNIVERSTY LAN.
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