摘要:CCIE Security
The Security track concentrates on network security and covers subjects such as ASA, IDS, IOS security, and many others.
CCIE Service Provider
The Service Provider track focuses on networking in the service provider industry. Subjects include Optical networks, DSL, WAN switching, Voice over IP, Content networking, Broadband Cable and Metro Ethernet.
CCIE Voice
The Voice track concentrates on voice solutions for the enterprise and includes subjects such as QoS, MGCP, Call Manager (Cisco’s VoIP PBX), Cisco Unity (Cisco’s Unified Messaging platform), Unity Express and IP Contact Center Express.
The CCIE Voice is said to be one of the more difficult certifications to obtain, and there are only 802 CCIE Voice certified people in the world as of September 9, 2008.