Chapter 14 - Unicast routing protocols: RIP, OSPF, and BGP. In this chapter, you will learn: Distinguish between intra and interdomain routing, understand distance vector routing and RIP, understand link state routing and OSPF, understand path vector routing and BGP. | Chapter 14 Upon completion you will be able to: Unicast Routing Protocols: RIP, OSPF, and BGP Distinguish between intra and interdomain routing Understand distance vector routing and RIP Understand link state routing and OSPF Understand path vector routing and BGP Objectives TCP/IP Protocol Suite INTRA- AND INTERDOMAIN ROUTING Routing inside an autonomous system is referred to as intradomain routing. Routing between autonomous systems is referred to as interdomain routing. TCP/IP Protocol Suite Figure Autonomous systems TCP/IP Protocol Suite Figure Popular routing protocols TCP/IP Protocol Suite DISTANCE VECTOR ROUTING In distance vector routing, the least cost route between any two nodes is the route with minimum distance. In this protocol each node maintains a vector (table) of minimum distances to every node The topics discussed in this section include: Initialization Sharing Updating When to Share Two-Node Loop Instability Three-Node . | Chapter 14 Upon completion you will be able to: Unicast Routing Protocols: RIP, OSPF, and BGP Distinguish between intra and interdomain routing Understand distance vector routing and RIP Understand link state routing and OSPF Understand path vector routing and BGP Objectives TCP/IP Protocol Suite INTRA- AND INTERDOMAIN ROUTING Routing inside an autonomous system is referred to as intradomain routing. Routing between autonomous systems is referred to as interdomain routing. TCP/IP Protocol Suite Figure Autonomous systems TCP/IP Protocol Suite Figure Popular routing protocols TCP/IP Protocol Suite DISTANCE VECTOR ROUTING In distance vector routing, the least cost route between any two nodes is the route with minimum distance. In this protocol each node maintains a vector (table) of minimum distances to every node The topics discussed in this section include: Initialization Sharing Updating When to Share Two-Node Loop Instability Three-Node Instability TCP/IP Protocol Suite Figure Distance vector routing tables TCP/IP Protocol Suite Figure Initialization of tables in distance vector routing TCP/IP Protocol Suite In distance vector routing, each node shares its routing table with its immediate neighbors periodically and when there is a change. Note: TCP/IP Protocol Suite Figure Updating in distance vector routing TCP/IP Protocol Suite Figure Two-node instability TCP/IP Protocol Suite Figure Three-node instability TCP/IP Protocol Suite RIP The Routing Information Protocol (RIP) is an intradomain routing protocol used inside an autonomous system. It is a very simple protocol based on distance vector routing. The topics discussed in this section include: RIP Message Format Requests and Responses Timers in RIP RIP Version 2 Encapsulation TCP/IP Protocol Suite Figure Example of a domain using RIP TCP/IP Protocol Suite Figure RIP message format TCP/IP .