Routing And Switching Questions
The main difference between eBGP (external Border Gateway Protocol) and iBGP (internal Border Gateway Protocol) lies in the way they are used to exchange routing information between different autonomous systems (AS) within a network.
eBGP is used to exchange routing information between different autonomous systems, which are separate networks operated by different organizations or service providers. It is typically used to connect different networks on the internet. eBGP is designed to exchange routing information between ASs and ensures that the best path is chosen for traffic to reach its destination.
On the other hand, iBGP is used to exchange routing information within the same autonomous system. It is used to distribute routing information between routers within an AS. iBGP ensures that all routers within the AS have consistent routing information and helps in achieving optimal routing within the AS.
In summary, eBGP is used for exchanging routing information between different autonomous systems, while iBGP is used for exchanging routing information within the same autonomous system.