Broken down into routable and nonroutable protocols, this handbook focuses on specific and potentially problematic issues common to each network type. As an aid for professionals in the field of Internet-working, it helps them make more intelligent, time- and cost-effective decisions for their environment.

The situation is dire for British forces in the Mediterranean, and Commander Nick Everard and his son Jack find themselves in the midst of chaos. Aboard separate ships, the Everards are part of a flotilla patrolling the Aegean. There they face the terrifying bomber attacks of German Stukas as they struggle to save as many of the evacuating troops as possible. But when the order comes for one last lift from Crete, the decimated flotilla must make a suicide run—and only a miracle can save them!

Over the years, thousands of tools have been developed for debugging TCP/IP networks. They range from very specialized tools that do one particular task, to generalized suites that do just about everything except replace bad Ethernet cables. Even better, many of them are absolutely free. There's only one problem: who has time to track them all down, sort through them for the best ones for a particular purpose, or figure out how to use them?Network Troubleshooting Tools does the work for you--by describing the best of the freely available tools for debugging and troubleshooting. You can start with a lesser-known version of ping that diagnoses connectivity problems, or take on a much more comprehensive program like MRTG for graphing traffic through network interfaces. There's tkined for mapping and automatically monitoring networks, and Ethereal for capturing packets and debugging low-level problems.This book isn't just about the tools available for troubleshooting common network problems. It also outlines a systematic approach to network troubleshooting: how to document your network so you know how it behaves under normal conditions, and how to think about problems when they arise, so you can solve them more effectively.The topics covered in this book include: Understanding your network Connectivity testing Evaluating the path between two network nodes Tools for capturing packets Tools for network discovery and mapping Tools for working with SNMP Performance monitoring Testing application layer protocols Software sources If you're involved with network operations, this book will save you time, money, and needless experimentation.

CD-ROM contains: Internet related RFCs -- Internet modem technology reference -- Case study on firewalls and data communications -- Internetworking troubleshooting reference -- glossary and acronym list.

A complete resource for assessing, auditing, analyzing, and evaluating any network environment With "Network Consultants Handbook, you will Learn from network audit and evaluation guidelines that aid in data gathering and analysis of network environments Work with tables and calculations that help provide near-real-time answers to internetworking issues and challenges Learn network diagramming tips that aid consultants and engineers in preparing consistent drawings for in-house documentation Discover how specific internetworking technologies fit into a design to create a networking solution for your customer Network consultants and engineers in today's industry continually face the challenge of assessing, auditing, and reviewing existing networks. Documenting, reviewing, and analyzing these changes in a customer's network is more challenging today than in the past, partly because of the explosive growth of converged applications and the Internet. Consultants and engineers often reinvent the wheel to gather and analyze relevant network information, particularly when examining a client's network while having little or no background information. "Network Consultants Handbook is a complete resource for assessing, auditing, analyzing, and evaluating any network environment. Intended for anyone who designs, manages, sells, administrates, or desires to understand various internetworking technologies, "Network Consultants Handbook demonstrates where and how to gather relevant information and how to analyze and document this information. Technology overviews peel away each layer of the network to provide a complete assessment. This book prepares you with form templates to completeduring a network audit, necessary device commands to aid in obtaining necessary information, and consistent forms to aid in documentation. Networks are like snowflakes: No two are alike. This is the challenge that network consultants, engineers, managers, designers, and anyone else involved with networks must face every day. Network Consultants Handbook provides the resources you need to evaluate and design networks, either as a desktop reference resource or in the field where the tables and calculations help provide near-real-time answers to internetworking issues and challenges. Companion Web Site The companion Web site for the book contains fully downloadable versions of the data gathering and analysis templates. These templates offer an easy-to-complete solution to gathering the data you need to complete your analysis of network environments. This book is part of the Cisco Press Networking Technologies Series, which offers networking professionals valuable information for constructing efficient networks, understanding new technologies, and building successful careers.

& Learn the troubleshooting techniques that every IT professional running a Virtual Private Network (VPN) must master & & Experience real-world solutions through practice scenarios in each chapter & & An essential workplace reference guide for every VPN management site

Perlman, a bestselling author and senior consulting engineer for Sun Microsystems, provides insight for building more robust, reliable, secure and manageable networks. Coverage also includes routing and addressing strategies, VLANs, multicasting, IPv6, and more.