Routing TCP/IP, Volume II Cisco
Lan Switching 上面两本最好，强烈推荐
Large-Scale IP Network Solutions
Advanced IP Network Design
Inside Cisco IOS Software Architecture
其次可考虑上面这三本，都是CCIE推荐阅读书目
Performance and Fault Management
CISCO ATM Solutions: Master ATM Implementation of Cisco Networks
Cisco Voice over Frame Relay, Atm, and Ip
BOOTCAMP(19个实验全)
Cisco(r) CCIE(tm) Lab Practice Kit
准备LAB的话，上面两本必不可少