Inter-domain routing & BGP
This blog post assumes that you have read / know about the topics mentioned in the previous blog post. If you have not taken a look at the previous post, you can do so here. Introduction The internet is a network of network consisting of over 50,000 Autonomous Systems (AS) that connect to each other using IXPs and Peering. Within each AS, they make use of intra-domain routing protocols such as OSPF and BGP to route traffic within their own network. The networks within each AS are usually small. As a result, intra-domain routing protocols usually send large information about each router to each other to route traffic between them. ...