TAILIEUCHUNG - Lecture Routing Protocols and Concepts - Chapter 10: Link-State Routing Protocols

After studying this chapter you will be able to: Describe the basic features & concepts of link-state routing protocols, list the benefits and requirements of link-state routing protocols. | Link-State Routing Protocols Routing Protocols and Concepts – Chapter 10 Objectives Describe the basic features & concepts of link-state routing protocols. List the benefits and requirements of link-state routing protocols. Introduction Link-State Routing Link state routing protocols Also known as shortest path first algorithms These protocols built around Dijkstra’s SPF Link-State Routing Dikjstra’s algorithm also known as the shortest path first (SPF) algorithm Link-State Routing The shortest path to a destination is not necessarily the path with the least number of hops Link-State Routing Link-State Routing Process How routers using Link State Routing Protocols reach convergence Each routers learns about its own directly connected networks Link state routers exchange hello packet to “meet” other directly Connected link state routers Each router builds its own Link State Packet (LSP) which includes information about neighbors such as neighbor ID, link type, & bandwidth After the LSP

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