Interdomain Routing: Border Gateway Protocol
Explore the fundamentals of Border Gateway Protocol (BGP) and its critical role in interdomain routing. Understand how domains use BGP to advertise their presence and determine optimal routes for network packets, facilitating seamless communication across autonomous systems.
Introduction
Just the way packets need to move around within a domain or autonomous system, packets need to move across them too. To enable all domains to communicate with each other, they need to be talking in the same language, in other words, they need to be using the same protocol. Hence, there exists just one interdomain routing protocol and it’s called the Border Gateway Protocol (BGP). We’ll spend a bit of time on ...