The previous week I went over networking with my students. I figured this would be the easiest class to teach all semester as it is my bailiwick . I’ve been earning a comfortable living through all my networking knowledge pretty much since just after I obtained my AAS at CCV. It’s been 10 years since I finished classes and 9 since I got my CCNA. I’ve worked for Cisco, PCR, and Sovernet in that time as a Systems Analyst and Network Engineer. My point is that I know this stuff like the back of my hand.
When it comes to delivering that knowledge though, it is really tough to narrow it down to one semester, much less one class. I attempted to explain the importance of subnets as that was the hardest concept to understand from my school days and yet one of the most important that I use all the time. The way I explained it, I believe I got everyone confused more. I was thinking that the book would do a good job to convey the basis of networking and I would go into more in depth knowledge with them. That was a gross miscalculation on my part. The book got across the basics in terms of a small home network and nothing more. It didn’t give the students enough knowledge in WAN routing to really enable them to understand the reason and rationale behind the concepts of why subnets would be a solution.
Condensing complex topics means I should evaluate what is relevant to the course and not to a future employee for an ISP. I should cover IP addresses and Default Gateways and Subnets in terms of ranges, not why they are needed and showing why.