content: But it focuses on IP routing. This book contains lots of information on analyzing IP routing processes but other than the includion of IS-IS, there are no non-IP routing protocols covered. A more appropriate name for this book would be "Cisco Router IP Configuration: Answers!". Extra credit is given for not taking 10 pages to explain a simple concept like most technical books do today. Keeping it short and to the point brought my evaluation up from 3 stars to 4.