Networking Fundamentals - Vol 8 - Basics of IP Routing
Routers move data from one IP network or subnet to another by maintaining a routing database and sending received packets on to the next hop. This paper introduces distance-vector protocols such as RIPv2, link-state protocols such as Open Shortest Path First (OSPF), and path-vector protocols such as Border Gateway Protocol (BGP). With a basic understanding of Variable Length Subnet Mask (VLSM) and classless IP addressing, you’ll quickly learn the logic behind routing methods.