Each section of the book is designed to cover a separate ""layer"" of a critical networking issue, such as bridging, routed protocols, and more. The book provides complete coverage of Cisco-specific troubleshooting tools including Cisco debug commands, traceroute, ping, and scripts. Hundreds of troubleshooting tips and techniques are provided that have been thoroughly tested in the field.

Innokenty is a Cisco Certified Internetworking Expert and works as a consultant at J.P. Morgan, where he manages the corporate networking infrastructure, consisting of various types of Cisco Equipment.