ICND2 Part 2: Routing Protocols, Downloadable Version, 2nd Edition

Part II: Routing Protocols

Lab 3, “RIP with Split Horizon, Route Poisoning, and Poison Reverse”–This lab

explains the concepts behind some of the more advanced distance vector loop avoidance features.

It also demonstrates these features in a small network using the output of IOS debug

commands.

Lab 4, “Single Area and Multi-area OSPF Configuration”–This lab shows how to configure

OSPF in a five-router WAN. It shows how to configure OSPF as simply as possible,

using a single OSPF area, as well as how to configure Area Border Routers (ABR) in a multiarea

design.

Lab 5, “EIGRP Configuration and Operation”–This lab shows how to configure EIGRP

in a simple three-router WAN. It focuses on the meaning of the EIGRP network configuration

subcommand; in particular, how the wildcard mask option allows an engineer to control

on which interfaces the router enables EIGRP. It also shows the contents of the IP routing

table when Variable Length Subnet Masking (VLSM) is used.

Lab 6, “Understanding EIGRP Metric Calculations”–This lab shows how EIGRP calculates

its integer metric value based on interface bandwidth and delay. It also shows examples

of the metric from the CLI, as well as how to influence the calculated metric–and therefore

the routes chosen by EIGRP–by tuning the interface bandwidth.

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