Good article complete with diagrams and clear explanations on how service providers peer or sell transit to each other. The difference between each is discussed as well as how the economics work. Border Gateway Protocol (BGP), Autonomous Systems (AS) and ‘Hot’ and ‘cold’ potato routing are defined but that is as technical as the article gets. Good for non-technical types that want to understand how the Internet ‘connects’ everyone.
How ISPs peer and sell transit
