For many years I have been a consultant for different companies and have written books on switch and router
configurations and troubleshooting. During my years as a consultant I have had to either install, administer, or
troubleshoot switching problems and configurations for switches without a good handbook. I have constantly
gone through bookstores looking for a book on Cisco switch troubleshooting and configurations that didn’t
deal with a Cisco curriculum. Guess what? I couldn’t find one!