Introduction -- Uses of Computer Networks -- Network Hardware -- Network Software -- Reference Models -- Example Networks -- Network Standardization -- Metric Units -- Outline of the Rest of the Book -- Physical Layer -- Theoretical Basis for Data Communication -- Guided Transmission Media -- Wireless Transmission -- Communication Satellites -- Public Switched Telephone Network -- Mobile Telephone System -- Cable Television -- Data Link Layer -- Data Link Layer Design Issues -- Error Detection and Correction -- Elementary Data Link Protocols -- Sliding Window Protocols -- Protocol Verification -- Example Data Link Protocols -- Medium Access Control Sublayer -- Channel Allocation Problem -- Multiple Access Protocols --

Ethernet -- Wireless Lans -- Broadband Wireless -- Bluetooth -- Data Link Layer Switching -- Network Layer -- Network Layer Design Issues -- Routing Algorithms -- Congestion Control Algorithms -- Quality of Service -- Internetworking -- Network Layer in the Internet -- Transport Layer -- Transport Service -- Elements of Transport Protocols -- Simple Transport Protocol -- Internet Transport Protocols: UDP -- Internet Transport Protocols: TCP -- Performance Issues -- Application Layer -- DNS -- The Domain Name System -- Electronic Mail -- World Wide Web -- Multimedia -- Network Security -- Cryptography -- Symmetric-Key Algorithms -- Public-Key Algorithms -- Digital Signatures -- Management of Public Keys

Authentication Protocols -- E-mail Security -- Web Security -- Social Issues -- Reading List and Bibliography -- Suggestions for Further Reading -- Alphabetical Bibliography.