Module 7: Distance Vector Routing Protocols / Overview

Module 7: Distance Vector Routing Protocols 

Overview

Dynamic routing makes it possible to avoid the configuration of static routes. Dynamic routing makes it possible to avoid the time-consuming and exacting process of configuring static routes. Dynamic routing also makes it possible for routers to react to changes in the network and to adjust their routing tables accordingly, without the intervention of the network administrator. However, dynamic routing can cause problems. Some of the problems associated with dynamic distance vector routing protocols are discussed in this module, along with some of the steps that designers of the protocols have taken to solve the problems.
RIP is a distance vector routing protocol that is used in thousands of networks throughout the world. The fact that RIP is based on open standards and is easy to implement makes it attractive to some network administrators. However, RIP lacks the power and features of more advanced routing protocols. Because of its simplicity, RIP is a good basic protocol for networking students. This module will also introduce RIP configuration and troubleshooting.
IGRP is another distance vector routing protocol. Unlike RIP, IGRP is a Cisco-proprietary protocol rather than a standards-based protocol. IGRP is also very simple to implement. However, IGRP is a more complex routing protocol than RIP and can use many factors to determine the best route to a destination network. This module will introduce IGRP configuration and troubleshooting.
This module covers some of the objectives for the CCNA 640-801, INTRO 640-821, and ICND 640-811 exams. -
Students who complete this module should be able to perform the following tasks:

• Describe how routing loops can occur in distance vector routing
• Describe several methods used by distance vector routing protocols to ensure that routing information is accurate
• Configure RIP
• Use the ip classless command
• Troubleshoot RIP
• Configure RIP for load balancing
• Configure static routes for RIP
• Verify RIP
• Configure IGRP
• Verify IGRP operation 
• Troubleshoot IGRP