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Editorial Reviews

From the Inside Flap
The relentless growth in the information-processing needs of organizations has been accompanied both by the rapid development in computer- and data-networking technology to support those needs and by an explosion in the variety of equipment and networks offered by vendors. Gone are the days when an organization would rely on a single vendor and a relatively straightforward architecture to support its needs. The world is no longer divided into the pure mainframe-based, IBM-compatible, centralized environment and the PC-based, single-LAN-type, distributed environment. Today's typical organization has a large and growing but amorphous architecture, with a variety of local-area networks (LANs) and wide-area networks (WANs), supported by bridges and routers, and a variety of distributed computing services and devices, including PCs, workstations, and servers. And, of course, despite over two decades of premature eulogies, the mainframe lives on in countless distributed and some centralized configurations.

To manage these systems and networks, which continue to grow in scale and diversity, a rich set of automated network management tools and applications is needed. Fundamental to the operation of such tools and applications in a multivendor environment are standardized techniques for representing and exchanging information relating to network management.

In response to these needs, managers and users have turned overwhelmingly to one standard: the Simple Network Management Protocol (SNMP) and the related Remote Network Monitoring (RMON) specification. SNMP was initially specified in the late 1980s and quickly became the standard means for multivendor network management. However, SNMP was too limited to meet all the critical needs for network management. Two enhancements have solidified the role of SNMP as the indispensable network management tool. First, the RMON specification, which is built on SNMP, was released in 1991. RMON defines algorithms and data bases for managing remote LANs. Second, an enhanced version of SNMP, known as SNMPv2, was released in 1993. SNMPv2 provides more functionality and greater efficiency than the original version of SNMP.

In 1995 both RMON and SNMPv2 were updated and extensively revised. This book is based on these most recent versions.

ObjectiveIn order to manage today's systems effectively and to plan intelligently for the future use of network management systems, the systems manager needs an understanding of the technology of network management and a thorough grasp of the details of the existing and evolving standards. It is the objective of this book to fill this need.

This book provides a comprehensive introduction to SNMP-based network and internetwork management. The first part of the book is a survey of network management technology and techniques, to enable the reader to place the various vendor offerings into the context of his or her requirements. The second part of the book presents the original SNMP family of standards, which is still the most widely deployed version. The third part looks at the revised version of RMON, which includes an update of the original RMON specification, plus RMON2, which extends RMON functionality. The final part of the book examines SNMPv2 in detail. Throughout, practical issues related to the use of these standards and products based on these standards are examined.

Intended AudienceThis book is intended for a broad range of readers interested in network management, including:

Students and professionals in data processing and data communications: This book is intended as a basic tutorial and reference source for this exciting area.

Network management designers and implementors: This book discusses critical design issues and explores approaches to meeting communication requirements.

Network management system customers and system managers: This book helps the reader understand what features and structures are needed in a network management facility and provides information about current and evolving standards to enable the reader to assess a specific vendor's offering.

AcknowledgmentsI would like to thank the reviewers of this book, who generously provided feedback on part or all of the manuscript: K. K. Ramakrishnan of AT&T; Russell Dietz of Technically Elite Concepts; Ravi Prakash of FTP Software; Ole Jacobsen of Interop Company; Clif Baker of the Research Libraries Group; Sandra Durham of Cisco; and Ian Taylor of Cygnus. In addition, the two main authors of RMON2 - Andy Bierman of Bierman Consulting, and Robin Iddon of AXON Networks - provided detailed reviews of the RMON material.

Also, I am grateful to the people who reviewed both the original proposal for this book and an early draft: Lyman Chapin of BBN; Radia Perlman of Novell; Glen Glater, Christopher Heigham, and Peter Schmidt of Midnight Networks.

0201634791P04062001

From the Back Cover
Third Edition
now available!

In order to manage today's complex, multivendor network environments effectively and to plan intelligently for the future, you will need an understanding of network management technology and a thorough grasp of the existing and evolving standards.

SNMP (Simple Network Management Protocol) is the most widely-deployed TCP/IP network management standard. This definitive guide is updated from the first edition to cover the final version of SNMPv2 and the increasingly popular RMON network management utility. It provides a comprehensive introduction to SNMP-based network management.

You will find clear explanations of such general network management fundamentals as performance monitoring and security control, as well as a specific introduction to SNMP network management concepts and information. Both the SNMPv1 and SNMPv2 protocols are described in depth. RMON2, the latest version of the Remote Network Monitoring management utility, is thoroughly documented, including practical techniques for its effective application.

Geared for network designers, implementers, and system managers, the book discusses critical design issues, explores various approaches to meeting communications requirements, and gives systems professionals the understanding they need to evaluate specific vendors' network products. 0201634791B04062001

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