The CCIE is a Cisco Certified Networking Expert, and its program is designed to develop the skills and knowledge of a networking expert to be able to design, deploy, and maintain complex network systems. In this article, we will introduce the content of the CCIE course syllabus, and how to prepare for and pass the exam. I. CCIE course syllabus content CCIE course syllabus includes the following areas: 1. routing and switching this area includes network protocols, IP routing, broadcast and multicast routing, network security and other aspects of knowledge. 2. security security area includes network security, data encryption, authentication, access control, firewalls and VPNs and other aspects of knowledge. 3. wireless network wireless network area includes Wireless network technology, network design and configuration, wireless security and other aspects of knowledge.4. Service Provider NetworksThe Service Provider Networks domain includes knowledge in the areas of Internet Service Providers, telecommunication carriers, television broadcasters, etc.5. Data Center NetworksThe Data Center Networks domain includes knowledge in the areas of data center architectures, virtualization technologies, network storage, and applications.6. CollaborationCollaboration Domain Includes knowledge in the areas of IP telephony, video, instant messaging, voicemail, and more.