What is BGP and BGP Configuration Explained | DDOT
In this video, I will explain to you what is BGP (Border Gateway Protocol), what it's used for, how it works, and why autonomous systems make the routing decisions they do with this tutorial.
BGP is the primary routing protocol used by the Internet. Its aim is to find all the routes available on the Internet and distribute them worldwide.
BGP is primarily designed for service providers and enterprise customers, rather than individual households or small users. Small commercial routers found in homes are no match for the routers used by service providers. With BGP, service providers can access their neighbors' routing tables to determine where to send traffic received from their users.
BGP is optimized to handle autonomous systems rather than individual routers. An autonomous system may consist of several hundred routers.
To determine the best route, BGP uses a variety of criteria, including route weight, local preference values, local routes, and the shortest autonomous system path.
BGP is the slowest routing protocol in use today. It takes several days for a registered domain name to propagate, and news of a server failure can take a long time to reach all corners of the Internet.
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