Overview

Introduction

The Configure and verify EIGRP module provides you with the instructions and Cisco hardware to develop your hands on skills in configuring EIGRP, this module contains the following exercises:

  1. EIGRP neighbor relationship and authentication
  2. EIGRP stub routing
  3. EIGRP load balancing and managing bandwidth
  4. EIGRP metrics

Exercise 1 – EIGRP neighbor relationship and authentication

In this exercise you will learn how to configure the basics of Cisco’s EIGRP routing protocol and apply authentication.

Exercise 2 – EIGRP stub routing

In this exercise you will configure NYEDGE2 to become a stub router, to compliment this feature you will also inject a summary route in to NYEDGE2 from NYEDGE1.

Exercise 3 – EIGRP load balancing and managing bandwidth

In this exercise you will learn how to tune EIGRP load balancing and manage bandwidth across wide area networks.

Variance

Variance is used to allow unequal cost load balancing. For example in the lab there is a frame-relay link that has 4 paths to the same subnets. In the previous exercise you changed the bandwidth configuration to reflect the correct speed of the links which meant that the lower bandwidth links dropped out of the routing table.

Exercise 4 – EIGRP metrics

In this exercise you will tune EIGRP by changing various metrics.

Hello and hold times

Hello and hold timers are used to verify that a neighbor still exists. A router usually knows if an interface fails as it goes in to an up/down or down/down state, however in some instances this does may happen (some WAN links are a good example of this), therefore EIGRP needs another method to confirm a neighbors reachability.

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