This best-selling, conceptual introduction to TCP/IP internetworking protocols interweaves a clear discussion of fundamentals with the latest technologies. Leading author Doug Comer covers layering and shows how all protocols in the TCP/IP suite fit into the five-layer model. With a new focus on CIDR addressing, this revision addresses MPLS and IP switching technology, traffic scheduling, VOIP, Explicit Congestion Notification (ECN), and Selective ACKnowledgement (SACK). Includes coverage of Voice and Video Over IP (RTP), IP coverage, a discussion of routing architectures, examination of Internet application services such as domain name system (DNS), electronic mail (SMTP, MIME), file transfer and access (FTP, TFTP, NFS), remote login (TELNET, rlogin), and network management (SNMP, MIB, ANS.I), a description of mobile IP, and private network interconnections such as NAT and VPN. The new edition includes updates to every chapter, updated examples, a new chapter on MPLS and IP switching technology and an expanded TCP description that featuers Explicit Congestion Notification (ECN) and Selective ACKnowledgement (SACK). For network and web designers, implementers, and administrators, and for anyone interested in how the Internet works.

Assuming no knowledge of industry jargon, this book describes the design of network systems such as routers, bridges, switches, firewalls, and other equipment used in the Internet. It considers the functionality required for protocol processing, and explains how the functionality has been implemented on a range of hardware architectures. The author focuses on network processor technology, a recent development that has become one of the standard tools used by designers. This book explores network processors and surveys network processor architectures, explains design complexity, covers architectural approaches and gives examples of commercial network processors that follow each approach, and uses the Intel IXP 2xxx series of network processors as a detailed example. For network and web designers, implementers, and administrators, and for anyone interested in how the Internet works.

Written by a best-selling author and leading computer networking authority, this updated book builds a comprehensive picture of the technologies behind Internet applications. It answers the basic question “how do computer networks and Internets operate?” in the broadest sense and includes an early optional introduction to network programming and applications. The book provides a comprehensive, self-contained tour through all of networking from the lowest levels of data transmission and wiring to the highest levels of application software, explaining how underlying technologies provide services and how Internet applications use those services. At each level, it shows how the facilities and services provided by lower levels are used and extended in the next level. Emphasis on Internet technologies and applications provides readers with substantial sections on Internetworking and Network Applications. For individuals with little or no background in the subject.

The second edition of this best-selling text continues to offer immensely practical advice and technical expertise to aid researchers in making sense of their collected data. Basics of Qualitative Research, Second Edition presents methods that enable researchers to analyze and interpret their data, and ultimately build theory from it. Highly accessible in their approach, authors Anselm Strauss (late of the University of San Francisco and co-creator of grounded theory) and Juliet Corbin provide a step-by-step guide to the research act— from the formation of the research question through several approaches to coding and analysis, to reporting on the research. Full of definitions and illustrative examples, this highly accessible book concludes with chapters that present criteria for evaluating a study, as well as responses to common questions posed by students of qualitative research. Significantly revised, Basics of Qualitative Research remains a landmark volume in the study of qualitative methods.