John M. Lusa 
The Network Manager”s Handbook, Third Edition [PDF ebook] 
1999

The Network Manager”s Handbook is a one-of-a-kind resource featuring critical network technology assessments and career development advice from some of the most highly respected consultants and network managers in the field. This answer-filled compendium provides a rich blend of precise knowledge and real-world experience, the result of many thousands of hours of actual hands-on work in the field. The book gives you proven, successful, economical solutions to real-world problems associated with the host of new network technologies.