Updated material reflects the changes in technology and includes such things as: the new specs for 10 Gigabit Ethernet; the concept of a public key infrastructure (PKI); the emerging home networking infrastructure standards; the results of the new advanced encryption standard (AES) that will replace DES. -- Increased coverage of selected topics within current chapters includes descriptions of specific flow control protocols in Chapter 5 (e.g., Stop-and-Wait, Sliding Window); -- coverage of UDP and TCP in Chapter 3; coverage of DSL service in Chapter 15; description of the RSA algorithm in Chapter 16; larger glossary. -- New chapters include voice and data wireless networking, multimedia networking, and network convergence -- New appendix on X.25.5. -- Chapter Titles: Fundamental Concepts of Computer Networks and Networking; Network Topologies, Architectures, and the OSI Model; The Internet and TCP/IP; Physical Layer Concepts; Data Link Layer Concepts and IEEE Standards; Network Hardware Components (Layers 1 and 2); WANs, Internetworking, and Network Layer Concepts and Components; Ethernet, Ethernet, and More Ethernet; Token Ring; Fiber Distributed Data Interface (FDDI); Integrated Services Digital Network (ISDN); Frame Relay; Switched Multimegabit Data Service (SMDS); Asynchronous Transfer Mode (ATM); Dialup and Home Networking; Network Security Issues; Network Convergence; Wireless Networking.