The Internet, the so-called 'information superhighway,' is being used by an increasing number of people worldwide. As a result, the Internet has been growing exponentially with the number of machines connected to the network and the amount of network traffic roughly doubling each year. The Internet today is fundamentally changing our social, political, and economic structures, and in many ways obviating geographic boundaries. In this chapter, we will consider the Internet protocol suite and the next generation Internet (IPv6). We will also consider Internet applications, Internet security, and voice over IP networks.

Chapter Contents:

• 2.1 Internet Protocol Suite
• 2.1.1 TCP Level
• 2.1.2 IP Level
• 2.1.3 Addresses and Addressing Scheme
• 2.2 IPv6: Next-Generation Internet
• 2.3 Quality of Service
• 2.4 Applications and Services
• 2.5 Voice Over IP
• 2.5.1 VoIP Network
• 2.5.2 Applications and Benefits
• 2.6 Internet Security
• 2.7 Flow Control
• Summary
• Review Questions
• Problems

Inspec keywords: telecommunication security; Internet telephony; next generation networks

Other keywords: geographic boundaries; protocol; next generation Internet; IPv6; information superhighway; network traffic; voice over IP networks; Internet security

Subjects: Computer communications; Other computer networks; Telephony; Data security