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Cisco BGP Configuration by topology PDF Print E-mail
Written by CiscoNET   

What is a command for showing BGP table? show ip BGP. that's right. Visit showipbgp.com to see a lot of sample BGP configurations and more to come. It will provide nothing but BGP information.
I believe that the below topologies will cover most of BGP configurations you need in the field. If you need a configuration for more specific topology, please send email at This e-mail address is being protected from spam bots, you need JavaScript enabled to view it

Click below samples

 

BGP topology 1
 
  • ISPs : 1
  • WAN links : 1
  • CPE : 1
  • PE : 1

Sample configurations

1-1-1. Cisco Single BGP with default route
1-2-1. Cisco Single BGP with Metric
1-3-1. Cisco Single BGP with Origin value
1-4-1. Cisco Single BGP with AS prepend
1-5-1. Cisco Single BGP with Community string
1-6-1. Cisco Single BGP with Multi-hop
BGP configuration topology 1

 

 

BGP topology 2

  
  • ISPs : 1
  • WAN links : 2
  • CPE : 1
  • PE : 1

Sample configurations

2-1-1. Cisco Single BGP with Multi-hop (load-balancing)
2-2-1. Cisco dual BGP with conditional announcement
2-3-1. Cisco Single BGP with Multi-hop (load-balancing) on Ethernet using GRE Tunnel
2-3-2. Cisco Multiple BGP with (load-balancing) on Ethernet using Maximum path

BGP configuration topology 2


BGP topology 3

  
  • ISPs : 1
  • WAN links : 2
  • CPE : 1
  • PE : 2

Sample configurations

3-1-1. Cisco Dual BGP with Metric (Redundancy)
3-2-1. Cisco Dual BGP with prefix Length (Load-balancing)
3-3-1. Cisco Dual BGP with AS prepend (Redundancy)
3-3-2. Cisco Dual BGP with AS prepend (Load-balancing)
3-4-1. Cisco Dual BGP with Community string (Redundancy)
3-4-2. Cisco Dual BGP with Community string (Load-balancing)
3-5-1. Cisco Dual BGP with Origin Value (Redundancy)
3-6-1. Cisco Dual BGP with Conditional Announcement
BGP configuration topology 3









BGP topology 4

  
  • ISPs : 2
  • WAN links : 2
  • CPE : 1
  • PE : 2

Sample configurations

4-1-1. Cisco dual BGP with Metric (Redundancy)
4-2-1. Cisco dual BGP with prefix Length (Load-balancing)
4-3-1. Cisco dual BGP with AS prepend (Redundancy)
4-3-2. Cisco dual BGP with AS prepend (Load-balancing)
4-4-1. Cisco dual BGP with Community string (Redundancy)
4-4-2. Cisco dual BGP with Community string (Load-balancing)
4-5-1. Cisco dual BGP with Origin Value (Redundancy)
4-5-2. Cisco dual BGP with Origin Value (Load-balancing)
4-6-1. Cisco dual BGP with Conditional Announcement
BGP configuration topology 4








BGP topology 5

  
  • ISPs : 1
  • WAN links : 2
  • CPE :2
  • PE : 2

Sample configurations

5-1-1. Cisco dual BGP with AS prepend-HSRP (Load-sharing)
5-1-2. Cisco dual BGP with AS prepend-iBGP (Load-sharing)
5-2-1. Cisco dual BGP with Community string-HSRP (Load-sharing)
5-2-2. Cisco dual BGP with Community string-iBGP (Load-sharing)

BGP configuration topology 5





BGP topology 6

  
  • ISPs : 2
  • WAN links : 2
  • CPE :2
  • PE : 2

Sample configurations

6-1-1. Cisco dual BGP with AS prepend-HSRP (Load-sharing)
6-1-2. Cisco dual BGP with AS prepend-iBGP (Load-sharing)
6-2-1. Cisco dual BGP with Community string-HSRP (Load-sharing)
6-2-2. Cisco dual BGP with Community string-iBGP (Load-sharing)
BGP configuration topology 6
 
























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