Example Analysis of BGP Loop Loop Interconnection
Editor to share with you the example analysis of BGP loop backtracking interconnection, I believe that most people do not know much about it, so share this article for your reference, I hope you will learn a lot after reading this article, let's go to know it!
Experiment name: BGP loop loop interconnection experiment
Purpose: proficient in using and configuring BGP, understanding the use of update-source, ebgp-multihop, next-hop-self
Experimental topology diagram:
The steps of the experiment:
Router R1 configuration:
Router > en
Router#conf t
Router (config) # int e0Universe 0
Router (config-if) # ip add 172.16.255.1 255.255.255.0
Router (config-if) # no shut
Router (config-if) # int loop 0
Router (config-if) # ip add 172.16.0.1 255.255.255.0
Router (config-if) # no shut
Router (config-if) # int loop 1
Router (config-if) # ip add 172.16.1.1 255.255.255.0
Router (config-if) # no shut
Router (config-if) # int loop 2
Router (config-if) # ip add 172.16.2.1 255.255.255.0
Router (config-if) # no shut
Router (config-if) # int loop 3
Router (config-if) # ip add 172.16.3.1 255.255.255.0
Router (config-if) # no shut
Router (config-if) # exit
Router (config) # router bgp 500
Router (config-router) # neighbor 172.16.16.1 remote-as 500
Router (config-router) # neighbor 172.16.16.1 update-source loop 0
Router (config-router) # net 172.16.255.0 mask 255.255.255.0
Router (config-router) # net 172.16.0.0 mask 255.255.255.0
Router (config-router) # net 172.16.1.0 mask 255.255.255.0
Router (config-router) # net 172.16.2.0 mask 255.255.255.0
Router (config-router) # net 172.16.3.0 mask 255.255.255.0
Router (config-router) # exit
Router (config) # router rip
Router (config-router) # version 2
Router (config-router) # net 172.16.0.0
Router (config-router) # no auto-summ
Router R2 configuration:
Router > en
Router#conf t
Router (config) # int e0Universe 0
Router (config-if) # ip add 172.16.255.2 255.255.255.0
Router (config-if) # no shut
Router (config-if) # int e0bin1
Router (config-if) # ip add 10.1.255.1 255.255.255.0
Router (config-if) # no shut
Router (config-if) # int loop 0
Router (config-if) # ip add 172.16.16.1 255.255.255.0
Router (config-if) # no shut
Router (config-if) # exit
Router (config) # router bgp 500
Router (config-router) # neighbor 172.16.0.1 remote-as 500
Router (config-router) # neighbor 172.16.0.1 update-source loop 0
Router (config-router) # neighbor 172.16.0.1 next-hop-self
Router (config-router) # neighbor 192.168.0.1 remote-as 600
Router (config-router) # neighbor 192.168.0.1 update-source loop 0
Router (config-router) # neighbor 192.168.0.1 ebgp-multihop 2
Router (config-router) # net 172.16.16.0 mask 255.255.255.0
Router (config-router) # net 172.16.255.0 mask 255.255.255.0
Router (config-router) # net 10.1.255.0 mask 255.255.255.0
Router (config-router) # exit
Router (config) # ip route 192.168.0.0 255.255.255.0 10.1.255.2
Router (config) # router rip
Router (config-router) # version 2
Router (config-router) # net 172.16.0.0
Router (config-router) # no auto-summ
Router R3 configuration:
Router > en
Router#conf t
Router (config) # int e0bin1
Router (config-if) # ip add 10.1.255.2 255.255.255.0
Router (config-if) # no shut
Router (config-if) # int loop 0
Router (config-if) # ip add 192.168.0.1 255.255.255.0
Router (config-if) # no shut
Router (config-if) # int loop 1
Router (config-if) # ip add 192.168.1.1 255.255.255.0
Router (config-if) # no shut
Router (config-if) # int loop 2
Router (config-if) # ip add 192.168.2.1 255.255.255.0
Router (config-if) # no shut
Router (config-if) # int loop 3
Router (config-if) # ip add 192.168.3.1 255.255.255.0
Router (config-if) # no shut
Router (config-if) # exit
Router (config) # router bgp 600
Router (config-router) # neighbor 172.16.16.1 remote-as 500
Router (config-router) # neighbor 172.16.16.1 update-source loop 0
Router (config-router) # neighbor 172.16.16.1 ebgp-multihop 2
Router (config-router) # aggregate-address 192.168.0.0 255.255.252.0 summary-only
Router (config-router) net 192.168.0.0 mask 255.255.255.0
Router (config-router) net 192.168.1.0 mask 255.255.255.0
Router (config-router) net 192.168.2.0 mask 255.255.255.0
Router (config-router) net 192.168.3.0 mask 255.255.255.0
Router (config-router) net 10.1.255.0 mask 255.255.255.0
Router (config-router) # exit
Router (config) # ip route 172.16.16.0 255.255.255.0 10.1.255.1
The above is all the contents of the article "sample Analysis of BGP Loop interconnection". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!
