Knowing the OSPF Network Types and how they work with different frame relay topologies is one of those things that you should know inside out if you are attempting the CCIE lab. This five part series of tutorials are designed to take you through all the different OSPF network types and demonstrate how they interact with Frame-Relay over various partial-mesh topologies.

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I get a lot of requests from students asking how they can practice some of the topics I teach on my Cisco courses. Cisco equipment can be pretty expensive especially when you are starting out your networking career, and not having anything to practice on makes that barrier to entry that much higher. Enter Dynamips. Dynamips is a Cisco hardware emulator. Its like VMWare for Cisco! It emulates a basic Cisco hardware platform so all you need to add is an IOS.