Working With Cisco Networking Materials
The fourth edition of the Ccna Guide To Cisco Networking Fourth Edition by David McDonald and Wes Payne covers a lot of ground. It was written for people preparing for the CCNA exam, though it also serves as a general reference for anyone who needs to understand how Cisco devices behave at the command line. The book is dense. It assumes you have touched a switch or router before. If you have not, you will struggle through chapters four and five on switching fundamentals. The text walks through the OSI model, IP addressing, subnetting, VLANs, STP, routing protocols like OSPF and EIGRP, basic security configurations, and NAT. It also touches on wireless and automation, which the fifth edition would expand significantly. The material is organized by topic rather than by difficulty, so you might find yourself reading about spanning tree before you fully understand why you need it. That feels intentional on the authors' part, but it caught me off guard when I first flipped through it. The real value sits in the command examples. McDonald and Payne show the actual CLI output from Cisco IOS, not sanitized screenshots. You see the prompts, the partial configs, the error messages that happen when you miss a comma in a route-map. That is useful. Most books gloss over the ugly output.
How I Actually Used This Book
I kept a copy on my desk during a migration project around 2019. We were replacing a pair of aging Catalyst 3560s with newer hardware, and I needed to verify our spanning-tree priorities before tearing down the old switches. The section on STP tuning in chapter eight gave me the exact commands. I tested the config on a lab box first. That step alone prevented a three-hour outage that might have happened if I had just pushed it directly. Another time, a junior engineer asked me why a router was not advertising a network into OSPF. The book's OSPF chapter explains the passive-interface command and how it quietly blocks adjacency formation on certain ports. We found the misconfiguration within twenty minutes. Without that reference, we might have spent the afternoon chasing phantom routing loops.
Pitfalls I Would Warn You About
The subnetting tables in the early chapters are fine, but they do not cover modern CIDR notation in enough depth for someone who has never worked with variable-length subnet masks. I have seen candidates breeze through the book and then freeze on a lab question that asks for a /27 subnet under a /24 summary. The answer is there, but you have to work for it. Do not skip the practice problems at the end of each chapter. They are not filler. Another problem: the book uses IOS classic syntax throughout. If you are studying for the current CCNA exam, you will eventually run into IOS-XE commands that look slightly different. The differences are minor, mostly in how you display routing tables or configure ACLs, but they matter on the exam. I would cross-reference this book with a live IOS-XE environment if possible. A used Cisco 2960 or even a Packet Tracer setup will do.
Get the Full Details
Is It Worth Reading Cover to Cover?
No. It is too long for that, and some sections repeat themselves unnecessarily. I recommend reading the chapters on IP addressing, VLANs, and routing first. Then skim the rest. Return to the later chapters when you hit a specific problem. That approach cut my study time roughly in half compared to the linear method I tried first. If you want a more modern companion, I would pair this with the official Cisco Press materials or Jeremy's IT Lab on YouTube. The book is solid reference material. It is not a complete standalone course. Treat it that way and it will serve you well.
Where to Find a Copy
The book is still in print through major retailers. The fourth edition is sometimes hard to track down on Amazon since the fifth edition exists, but older stock circulates on eBay and AbeBooks at reasonable prices. If you already own the third edition, the changes between editions are incremental enough that you can probably wait. The core networking concepts have not shifted dramatically. What has changed is the emphasis on automation and programmability, which the later editions handle better. For now, the fourth edition remains a practical, no-nonsense reference for anyone who wants to understand how Cisco gear actually behaves when something goes wrong at 2 AM.
