Distance Vector Routing Protocols

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

Examples of Distance Vector routing protocols:

• Routing Information Protocol (RIP)
• Interior Gateway Routing Protocol (IGRP)
• Enhanced Interior Gateway Routing Protocol (EIGRP)

Distance Vector Technology

• The Meaning of Distance Vector:

A router using distance vector routing protocols
knows 2 things:

1. Distance to final destination
2. V ector, or direction, traffic should be directed

Characteristics of Distance Vector routing protocols:

• Periodic updates
• Neighbors
• Broadcast updates
• Entire routing table is included with routing update

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