tailieunhanh - Lecture Routing Protocols and Concepts - Chapter 4: Distance Vector Routing Protocols

In this chapter: Identify the characteristics of distance vector routing protocols, describe the network discovery process of distance vector routing protocols using Routing Information Protocol (RIP), describe the processes to maintain accurate routing tables used by distance vector routing protocols,. | Distance Vector Routing Protocols Routing Protocols and Concepts – Chapter 4 Objectives Identify the characteristics of distance vector routing protocols. Describe the network discovery process of distance vector routing protocols using Routing Information Protocol (RIP). Describe the processes to maintain accurate routing tables used by distance vector routing protocols. Identify the conditions leading to a routing loop and explain the implications for router performance. Recognize that distance vector routing protocols are in use today. Distance Vector Routing Protocols Examples of Distance Vector routing protocols: Routing Information Protocol (RIP) Interior Gateway Routing Protocol (IGRP) Enhanced Interior Gateway Routing Protocol (EIGRP) Distance Vector Routing Protocols Distance Vector Technology - the Meaning of Distance Vector A router using distance vector routing protocols knows 2 things: Distance to final destination Vector, or direction, traffic should be directed Distance | Distance Vector Routing Protocols Routing Protocols and Concepts – Chapter 4 Objectives Identify the characteristics of distance vector routing protocols. Describe the network discovery process of distance vector routing protocols using Routing Information Protocol (RIP). Describe the processes to maintain accurate routing tables used by distance vector routing protocols. Identify the conditions leading to a routing loop and explain the implications for router performance. Recognize that distance vector routing protocols are in use today. Distance Vector Routing Protocols Examples of Distance Vector routing protocols: Routing Information Protocol (RIP) Interior Gateway Routing Protocol (IGRP) Enhanced Interior Gateway Routing Protocol (EIGRP) Distance Vector Routing Protocols Distance Vector Technology - the Meaning of Distance Vector A router using distance vector routing protocols knows 2 things: Distance to final destination Vector, or direction, traffic should be directed Distance Vector Routing Protocols Characteristics of Distance Vector routing protocols: Periodic updates Neighbors Broadcast updates Entire routing table is included with routing update Distance Vector Routing Protocols Routing Protocol Algorithm: Defined as a procedure for accomplishing a certain task Distance Vector Routing Protocols Routing Protocol Characteristics Criteria used to compare routing protocols includes Time to convergence Scalability Resource usage Implementation & maintenance Distance Vector Routing Protocols Network Discovery Router initial start up (Cold Starts) Initial network discovery Directly connected networks are initially placed in routing table Network Discovery Initial Exchange of Routing Information If a routing protocol is configured then: Routers will exchange routing information Routing updates received from other routers Router checks update for new information If there is new information: Metric is updated New information is stored in routing table Network .

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