Chapter 9. Interior Gateway Routing Protocol (IGRP)

This chapter covers the following key topics:

  • IGRP fundamentals

  • Configuring IGRP

This chapter briefly reviews the IGRP routing protocol and then completes the lab objectives associated with this protocol. You also will learn about several commands to help troubleshoot and debug IGRP. Note that, for a full review of the IGRP protocol, you should review Chapter 8 of Interconnecting Cisco Network Devices from Cisco Press.

IGRP Fundamentals

The Interior Gateway Routing Protocol (IGRP) is an advanced distance vector routing protocol. Because it is a Cisco-developed routing protocol, only Cisco devices can utilize this protocol for routing purposes. Like RIP, it, too, is a classful protocol, meaning that ...

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