There are a lot of commands in the Cisco IOS that you can use for troubleshooting. It depends on what the symptoms are and what networking technology you are using (eg ATM, ethernet, frame relay). The more common of course are your sh ip int brie, sh run, sh ver, sh controllers etc but there […]

When I was studying for my CCNA afew years back, I needed some reference. There are plenty of books to read, and I decide to make some notes myself, and store them online where I could easily find them. Below, are a list of the more common things you need to remember. If you want […]