- Paperback: 688 pages
- Publisher: Addison Wesley; 1 edition (21 Dec 2000)
- Language English
- ISBN-10: 0201704552
- ISBN-13: 978-0201704556
- Product Dimensions: 22.6 x 18.5 x 3.6 cm
- Amazon Bestsellers Rank: 2,621,780 in Books (See Top 100 in Books)
- See Complete Table of Contents
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Product Description
Product Description
Today, organizations are more dependent on their Cisco networks than ever before -- and their networks are growing ever more complex and interdependent. In this book, one of the world's leading network consultants shares practical, realistic techniques for maximizing reliability and availability in any network environment. This book discusses every leading approach to improving network availability, including key principles and tradeoffs -- guiding network professionals in choosing the most appropriate solutions for their own networks. Leading network consultant, Dr. Vincent Jones presents a series of common network scenarios, analyzes their weaknesses, and presents solutions -- demonstrating how to ensure that other services continue unaffected when parts of the network fail, and how to automate recovery. While the examples in the book are Cisco-focused, the principles and design tradeoffs apply to any contemporary router- or switch-based internetwork. For every network designer and administrator responsible for optimizing the reliability and availability of today's networks.
From the Back Cover
Keeping a network continuously available despite the many potential hazards that can shut it down is a job that network implementors and technical managers struggle with every day. High Availability Networking with Cisco shows those charged with that increasingly important task how to achieve higher network availability both in theory and in practice. Using a "divide-and-conquer" approach, each chapter dissects the general need of high availability network design. The specific challenges and available solutions for each need are first discussed on a theoretical level. When appropriate, one or more implementation examples are presented, showing how the theory translates into working Cisco router configurations.
Although the examples use Cisco routers, the underlying theory is vendor-independent, and most of the solutions presented easily can be adapted to routers and switches from any vendor. Similarly, the theoretical aspects discussed in this book can be applied to networks of all sizes and technologies. Sample solutions focus on the needs of moderately sized extended corporate networks using IP version 4.0 and stable performance technologies such as frame relay, ISDN, and Ethernet.
Readers will find an invaluable survey of all aspects of high availability network design, including the following:
- Network vulnerabilities and appropriate counter measures
- Selecting and tuning bridging and routing protocols for higher availability
- Multihomed hosts from individual client-to-server clusters
- Dial backup over asynchronous and ISDN links
- Single points of failure despite multiple routers at a single site
- Hub and spokes design approaches that scale
- Linking to another private network
- Multiple links to one or more Internet service providers
- Alternate routing through redundant firewalls without sacrificing security
- Supporting legacy systems using Data Link Switching (DLSw)
- Disaster-recovery options, including hot backup and load sharing approaches
- Management considerations ranging from status monitoring to total quality control
By using many examples drawn from working configurations proven to be successful in actual corporate networks, High Availability Networking with Cisco reflects the author's extensive experience helping clients minimize the impact of failure on network operations
0201704552B04062001
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7 reviews
9 of 9 people found the following review helpful
Tackles the Tough Topics
6 Feb 2001
Format:Paperback
This book is a fantastic, practical, detailed, readable reference for a huge range of very important networking topics relating to increasing the up-time of networks. It gives sample configurations for Cisco routers (with some reference to Bay/Nortel routers as well) in many environments (ISP connection, firewall, hub-and-spoke architecture, load-sharing, and so on), and provides supurb discussions of the decisions and trade-offs in the many ways of designing high-availablility networks. Difficult network problems, such as enabling backup data links for routers where the primary WAN interface fails "silently" (without a change in the interface status) are clearly addressed, with several detailed solutions presented, discussing the advantages, disadvantages and restrictions of each. There are none of those frustrating issues left for us to work out on our own, this is a tutorial book with all the answers, not a college textbook with questions. Redundant network components, including dual LAN adapters, LAN adapters with built-in dual ports, dual switches, routers with dual WAN interfaces, dual routers, dual DNS servers, dual firewalls, dual ISPs, and dual locations are all examined, showing what has to be done to actually get increased availability. Even though I likely won't be implementing these myself, I now know what I can ask of those who are configuring my routers, and I know how to look at network designs with a better knowledge about reliability and failure modes.
8 of 8 people found the following review helpful
Essential for 24x7 infrastructure strategies
24 Feb 2001
Format:Paperback|Amazon Verified Purchase
This book is an important addition to the body of knowledge of high availability in general and network availability in particular. Do not let the title mislead you, this book is not about high availability for Cisco - it uses that product family for examples. The information provided in this excellent book can be effectively applied to any vendor-specific or multi-vendor network architecture.
I am not going to rehash the table of contents or the lengthly editorial review - I am going to jump into why I like this book and what I think makes it so valuable.
First, no 24x7 system is a true highly available information resource unless you can access it. Try as I may, I cannot think of a single company that does not employ a network as the base infrastructure for their information systems. This book provides information necessary to create a foundation for high-availability and 24x7 operations.
Second, the book is a catalog of high availability designs that will fit within any network architecture, regardless of complexity, products used or geographical scope. No matter what your network currently looks like you will find out what it takes to transform it into a reliable, resilient 24x7 network. The author has provided a design strategy for every conceivable situation and network configuration, and thoroughly discusses the underlying technical issues. This is where the "Cisco" part of the title comes in - he uses that particular product family as examples for achieving high availability designs for each scenario.
Third, the disaster recovery section in the book is well thought out and shows that the author has a lot of knowledge and experience in business continuity planning and disaster recovery. This section alone is worth the price of the book.
This book is, in my opinion, essential reading for network architects, consultants and integrators, and operations managers who are seeking a total solution to high-availability solutions.
What I would love to see is a follow-on book that provides the design information reformatted as design patterns. This would be an invaluable resource for experienced network architects and consultants.
7 of 7 people found the following review helpful
High Availability Networking
4 Jan 2001
Format:Paperback|Amazon Verified Purchase
Outstanding! This book details all the aspects of HA design. No handwaving here, discussions include tradeoffs, gotchas, and alternatives for resilent infrastructure, complete with working examples and explanations. A great cookbook that's a must-have.
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