ASP Confifuration P1

Chia sẻ: Thach Sau | Ngày: | Loại File: PDF | Số trang:30

lượt xem

ASP Confifuration P1

Mô tả tài liệu
  Download Vui lòng tải xuống để xem tài liệu đầy đủ

For the modern Web-enabled community to grow and prosper, we need to create and deploy communication solutions that can collate an assorted collection of data and applications, while incorporating legacy solutions still in use and allowing for painless migration to future technologies.

Chủ đề:

Nội dung Text: ASP Confifuration P1

  1. 1 YEAR UPGRADE BUYER PROTECTION PLAN ASP [ ] Application Service Provider Configuration Handbook Become an Application Service Provider! • Step-by-Step Instructions for Converting an ISP from Standard Bandwidth Provisioning to Providing Complex Services • Hundreds of Common ASP Terms Defined, Types of ASP Firms Identified, and Best Platforms Revealed • Complete Coverage of Application Outsourcing, Business Process Outsourcing, and Platform IT Outsourcing Gary Palmatier, Vice President of Business Development and Solution Architecture, EngineX Networks, Inc. Foreword by Dale Booth, Chairman & CEO, EngineX Networks, Inc. Sean Thurston Technical Editor Professional Reference Series
  2. With more than 1,500,000 copies of our MCSE, MCSD, CompTIA, and Cisco study guides in print, we continue to look for ways in which we can better serve the information needs of our readers. One way we do this is by listening. Readers like yourself have been telling us they want an Internet-based ser- vice that would extend and enhance the value of our books. Based on reader feedback and our own strategic plan, we have created a Web site that we hope will exceed your expectations. is an interactive treasure trove of useful infor- mation focusing on our book topics and related technologies. The site offers the following features: s One-year warranty against content obsolescence due to vendor product upgrades. You can access online updates for any affected chapters. s “Ask the Author”™ customer query forms that enable you to post questions to our authors and editors. s Exclusive monthly mailings in which our experts provide answers to reader queries and clear explanations of complex material. s Regularly updated links to sites specially selected by our editors for readers desiring additional reliable information on key topics. Best of all, the book you’re now holding is your key to this amazing site. Just go to, and keep this book handy when you register to verify your purchase. Thank you for giving us the opportunity to serve your needs. And be sure to let us know if there’s anything else we can do to help you get the max- imum value from your investment. We’re listening.
  3. 1 YEAR UPGRADE BUYER PROTECTION PLAN ASP [ ] Application Service Provider Configuration Handbook Professional Reference Series
  4. Syngress Publishing, Inc., the author(s), and any person or firm involved in the writing, editing, or production (collectively “Makers”) of this book (“the Work”) do not guarantee or warrant the results to be obtained from the Work. There is no guarantee of any kind, expressed or implied, regarding the Work or its contents.The Work is sold AS IS and WITHOUT WARRANTY.You may have other legal rights, which vary from state to state. In no event will Makers be liable to you for damages, including any loss of profits, lost savings, or other inci- dental or consequential damages arising out from the Work or its contents. Because some states do not allow the exclusion or limitation of liability for consequential or incidental damages, the above limitation may not apply to you. You should always use reasonable case, including backup and other appropriate precautions, when working with computers, networks, data, and files. Syngress Media®, Syngress®, and “Career Advancement Through Skill Enhancement®,”are registered trademarks of Syngress Media, Inc. “Ask the Author™,”“Ask the Author UPDATE™,”“Mission Critical™,” and “Hack Proofing™” are trademarks of Syngress Publishing, Inc. Brands and product names mentioned in this book are trademarks or service marks of their respective companies. KEY SERIAL NUMBER 001 KKHJH87875 002 GSRSUY6456 003 ALERKTPD53 004 E458XPS368 005 5ERPTK348A 006 NV49533JFE 007 Q8URVNA394 008 BHU89FE2MP 009 Q2WPMKA843 010 CDFUU8Z922 PUBLISHED BY Syngress Publishing, Inc. 800 Hingham Street Rockland, MA 02370 ASP Configuration Handbook: A Guide for ISPs Copyright © 2001 by Syngress Publishing, Inc. All rights reserved. Printed in the United States of America. Except as permitted under the Copyright Act of 1976, no part of this publication may be reproduced or dis- tributed in any form or by any means, or stored in a database or retrieval system, without the prior written permission of the publisher, with the exception that the program listings may be entered, stored, and executed in a computer system, but they may not be reproduced for publication. Printed in the United States of America 1 2 3 4 5 6 7 8 9 0 ISBN: 1-928994-26-1 Technical Editor: Sean Thurston Freelance Editorial Manager: Maribeth Corona-Evans Co-Publisher: Richard Kristof Copy Editor: Beth A. Roberts Cover Design by: Michael Kavish Index by: Robert Saigh Page Layout and Art by: Shannon Tozier Distributed by Publishers Group West in the United States.
  5. Acknowledgments We would like to acknowledge the following people for their kindness and support in making this book possible. Richard Kristof and Duncan Anderson of Global Knowledge, for their generous access to the IT industry’s best courses, instructors, and training facilities. Karen Cross, Lance Tilford, Meaghan Cunningham, Kim Wylie, Harry Kirchner, Bill Richter, Kevin Votel, Brittin Clark, and Kent Anderson of Publishers Group West for sharing their incredible marketing experience and expertise. Mary Ging, Caroline Hird, Simon Beale, Caroline Wheeler,Victoria Fuller, Jonathan Bunkell, and Klaus Beran of Harcourt International for making certain that our vision remains worldwide in scope. Anneke Baeten, Annabel Dent, and Laurie Giles of Harcourt Australia for all their help. David Buckland,Wendi Wong, Daniel Loh, Marie Chieng, Lucy Chong, Leslie Lim, Audrey Gan, and Joseph Chan of Transquest Publishers for the enthusiasm with which they receive our books. Kwon Sung June at Acorn Publishing for his support. Ethan Atkin at Cranbury International for his help in expanding the Syngress program. Joe Pisco, Helen Moyer, and the great folks at InterCity Press for all their help. v
  6. Contributors Dale Booth is EngineX Networks’ Chairman and CEO. He has more than two decades of telecommunications industry experience, including the role of Senior Vice President and Chief Operating Officer at Fujitsu Network Services, a division of Fujitsu Network Communications. Dale created the vendor-neutral services division and powered it to a 373 per- cent compound annual growth rate. He also served as Chief Information Officer of Fujitsu Network Communications. Prior to that, he held var- ious technical and management positions at InteCom, a PBX start-up specializing in converged voice and data platforms. Dale has an engi- neering degree from DeVry Institute and did post-graduate work at the University of Pennsylvania,Wharton School of Business. He serves on numerous boards and councils, including Daisytek International, the Texas Quality Foundation, and the International Engineering Consortium. Gary Palmatier is Vice President of Business Development and Solution Architecture for EngineX Networks Inc. He is responsible for defining markets, creating technical service solutions, and managing customer, partner, and alliance relationships. He has more than 18 years of telecom- munications industry experience. Previously, he was Director of Advanced Network Services at Fujitsu Network Services, where he established the professional services business unit and directed the division’s global profes- sional services efforts. Gary has a master’s degree in IS management from Aurora University, in Aurora, IL and a bachelor’s degree in industrial tech- nology from Southern Illinois University. Gary serves as Chairman of the Systems Integration Committee of the National Convergence Alliance. He is certified as an Oracle Master Systems Analyst and is a member of the IEEE. Gary has been a featured speaker at Argonne National Laboratory, professional societies, and industry symposiums on topics such as software engineering, innovation, and management systems. He has also taught electronics technology, programming languages, and networking at the college level. vii
  7. Matt Lyons (CCIE #1133) is the Director of Solution Architecture for EngineX Networks Inc. Matt has over 20 years of experience working with networking and IP. He has worked for such early network pioneers as Ungermann Bass, SynOptics Communications, Network General, and Nestar Systems, the first company to network the Apple II. After more than 7 years at Cisco Systems, and leveraging his international consulting experience, he has joined EngineX Networks to build a Solution Architecture group that is focused on large-scale carrier network issues and design. Matt lives in Fremont, CA. Kevin Murphy (CCNA, CSE) is the Director of Business Development for EngineX Networks Inc. Kevin is responsible for developing the part- nerships and alliances required to support EngineX Networks’ advanced designs and deployments. Previously, Kevin served on the EngineX Design team as a Solution Architect and Engagement Manager. His areas of focus include VoIP, content networking, and VPN. He has also held var- ious business development and sales positions within the Infrastructure segment. Kevin holds a bachelor’s degree in business administration from the University of Southern California with an entrepreneur emphasis. He lives in San Francisco, CA. Aaron Davidson (CCNA) is a Solution Architect with EngineX Networks Inc. He creates infrastructure and data center design solutions. His specialties include security, load balancing, and implementation of var- ious vendors’ equipment. Aaron’s background includes designing and securing several Silicon Valley ventures and working for numerous Internet service providers. Aaron lives in the East Bay and is working on his certifications and a music career. Mark Egan (CCNP, MCSE, MCP+I, CNE) is a Senior Solution Architect for EngineX Networks Inc. He provides technical leadership for the Solution Architecture team as well as support for the design and implementation of customer networks. Mark’s background includes working for Sprint-Paranet as a Technical Analyst and as a Consultant for Exxon. Mark Lives in Dublin, CA. viii
  8. Ben Tsui (CCNP, CCDA, MCSE, MCP+I, MBA) is a Senior Network Engineer with EngineX Networks Inc. He designs telecommunications infrastructures and implements network devices as well as the provision of local loop for transport deployment. His specialties include research, doc- umentation, and implementation. Ben’s background includes positions as Design Engineer for PacBell and a Network Engineer Specialist for SBC Datacomm. Ben lives in Fremont, CA. He is pursuing his master’s degree in telecommunications. ix
  9. Technical Editor and Contributor Sean Thurston (CCDP, CCNP, MCSE, MCP+I) is a Senior Solution Architect with EngineX Networks Inc. He provides network and data center design solutions for large-scale deployment. His specialties include implementation of multi-vendor routing and switching equipment and XoIP (everything over IP) installations. Sean’s background includes posi- tions as a Technical Analyst for Sprint-Paranet and the Director of a brick and mortar advertising dot-com company. Sean is also a contributing author to Syngress Publishing’s Building a Cisco Network for Windows 2000, ISBN: 1-928994-00-8. Sean lives in Renton,WA. He is currently pursuing his CCIE. x
  10. Contents Foreword xxix Choose the Best Chapter 1 An Introduction to ASPs for ISPs 1 Platform for Your ASP Introduction 2 Why This Book Is for You 3 ASPs take advantage of What This Book Can Do for You 4 existing Internet connectivity to offer Whom This Book Is Written For 5 corporations the Definitions of Common ASP Terms 5 opportunity to outsource What Is an Internet Service Provider? 5 not only peripheral applications but also What Is an Application Service Provider? 6 mission-critical The Pure ASP 6 applications. This trend What Is Information Technology Outsourcing? 6 will continue to escalate as customers discover that Application Outsourcing 7 outsourcing firms can Business Process Outsourcing 7 deliver mission-critical Platform Information Technology applications that meet Outsourcing 7 their demands for service licensing agreements The Elements That Make an ASP Viable 8 (SLAs). For ISPs and ASPs, Life Cycle for the Cost of Ownership 8 these application-hosting The Initial Cost of Hardware Acquisition 9 responsibilities require the choice of a platform that Hardware Maintenance and Associated can deliver the correct Costs 10 balance of performance, Initial System Software Package scalability, upgradeability and manageability. Acquisition 10 Initial Application Software Package Acquisition 10 Implementation 10 The Cost of Hardware Upgrades 11 The Cost of System Software Upgrades 11 xi
  11. xii Contents The Cost of Application Software Upgrades 12 Network Administration Resources 12 Other Support (Training, Help Desk, Etc.) 12 Possible Business Models and Offerings 12 Types of ASP Firms 13 Professional Consulting 14 Project-Based Service Providers 14 Outsourcing Providers 15 Staff Augmentation Providers 15 Education and Training Providers 16 Value-Added Resellers 16 The OSI-ISO Seven Layer Model 16 Layer 1:The Physical Layer 17 Layer 2:The Data-Link Layer 18 Layer 3:The Network Layer 18 Layer 4:The Transport Layer 18 Layer 5:The Session Layer 19 Layer 6:The Presentation Layer 19 Layer 7:The Application Layer 19 The Upper Layers 21 The Lower Layers 21 The Pseudo Layers 21 Layer 8:The Political Layer 21 Layer 9:The Religion Layer 22 Layer 10:The Financial Layer 22 Choosing the Best Platform for Your ASP 22 Hardware 23 Servers 24 Hewlett-Packard 24 Sun Microsystems 25 Compaq 25 Network Equipment 25 Data Traffic Explosion 25 Alcatel Networks 26 Cisco Systems 26 Extreme Networks 26
  12. Contents xiii F5 Networks 27 Foundry Networks 27 Juniper Networks 27 Lucent Technologies 27 Nortel Networks 28 Cache Appliance Makers 28 Akamai 28 Intel 28 Inktomi 28 Software 29 Load-Balancing Software 29 BEA Systems 30 Hewlett-Packard WebQoS 30 IBM 31 Microsoft 32 Resonate 32 Segue 33 Business Drivers for the Conversion to ASP 34 Business Factors That Impact the ASP Model 34 Enabling Technologies 35 Technical Factors 36 Barriers to the ASP Business Model 37 ASP Business Model Strategies 38 System Integrators and Implementers 40 Internet Service Providers and Telecommunication Companies 41 Independent Software Vendors 42 Independent Software Vendor Companies 43 Why All the Mergers? 45 Performance Issues 45 Amount of System Uptime (Five Nines) 46 Failover 47 Clustering 47 Sun Microsystems 47 Hewlett Packard 47 Compaq 48
  13. xiv Contents Problems That Could Arise from Conversion 48 Major Issues in the Implementation of an ASP Model 49 What Is Needed to Sell Your Services? 49 Necessary Components 50 Summary 51 Solutions Fast Track 51 Frequently Asked Questions 57 Chapter 2 The Business Case 59 Review ASP Decision Introduction 60 Criteria ISP Market Conditions 61 Current Analysis published The Onset of Commoditization 63 the results of their survey Broadband—The Enabling Technology 64 of ASP customers that Service Provider Business Requirements 67 ranked the major decision The New Model 68 criteria they used to choose an ASP provider. Customers’ Demands 69 Major factors included: Investor Demands 71 s Support Capabilites The Evolving ISP 72 s Hosting and Facility The Steps Necessary to Offer Value 73 Experience Deployment of Services 75 s Cost and Pricing Value-Added Services and Core Structure s Reputation and Client Competencies 78 Reference The Service Provider of the Future 80 s Service Level Agreement The Finances Involved 82 s Past Performance The Case for Application Service Provider s Scalability and Conversion 82 Completeness of Solution Market Factors 84 ASP Customer Value Proposition 86 ISP Value Proposition 88 ASP Services Also Enable Future Migration Up the Value Chain 91 ISP to ASP:The Perfect Fit? 91 Critical Success Factors 94 Business Models 94 Determining Your Offerings 96 Customer Issues 99
  14. Contents xv Summary 103 Solutions Fast Track 104 Frequently Asked Questions 106 Chapter 3 Server Level Considerations 109 Introduction 110 Understand How Servers Work in Your Implementation,Where to Begin 111 Environment Server Hardware 111 Central Processing Unit 112 ASPs need to support Symmetric Multiprocessing 114 content, database Random Access Memory 115 information, storage area networking (SAN), and file Mass Storage 116 servers to truly provide Network Adapters 118 well-rounded application Software Solutions for Your ASP 133 service offerings. These "server farms" must be System Software 133 maintained and supported Application Software Types 137 with the priority that the Web Applications 137 application demands. Remember that the design Database Applications 141 of a system and Middleware Software 142 implementation of an Server Redundancy 143 infrastructure that will work for your company and Shared Device 144 satisfy your customers will Shared Nothing 144 require exceptionally Under- and Over-Subscription 145 careful planning and forethought. Network Service Considerations 147 Network Storage 147 Network File System Protocol 148 Server Message Block Protocol 149 Common Internet File System 159 Data Backups and How They Can Affect You 159 Software Selection 162 Virus Scanning Suggestions 168 Thin Client Solutions 171 ICA Protocol 172 Maintenance and Support Issues 174 Planned Upgrades 174 Break/Fix 176 System Monitoring 177
  15. xvi Contents Summary 179 Solutions Fast Track 180 Frequently Asked Questions 184 Chapter 4 Performance Enhancement Technologies 187 Introduction 188 Content Delivery Networks and Streaming What Is Web Caching? 189 Media What Is Load Balancing? 189 What Is Content Routing? 189 Content Delivery Networks Web Caching and How It Works 189 can provide more efficient What Is Data Caching? 190 service, as they can store and forward multiple formats and The Benefits of Data Caching? 191 bit rates for streaming media. What Happens With and Without a A number of companies now Solution in Place 193 offer streaming media appliances: How to Reduce Bandwidth Usage 195 s Midstream— Key Requirements for a Caching Solution 195 Deployment Models for Data Caching 197 s Network Engines— Forward Proxy 198 Transparent Caching 198 s Vingage— Reverse Proxy 198 s Vividon— Cache Locations and Placement 199 Cache Hierarchies 199 What Are Cache Appliances? 201 Cost Effectiveness 201 Ease of Installation and Management 201 Fault Tolerance 202 Scalability and Flexibility 203 Performance and Speed 203 Load Balancing in Your Infrastructure 204 Localized Load Balancing 204 Distributed Load Balancing 204 Comparing Different Load-Balancing Systems 205 Software-Only Solutions 206 Switches 207 Routers and Caching Systems 207 Clustering 208
  16. Contents xvii Network Appliances 208 Criteria You Should Look for in a Superior Load-Balancing Solution 209 Dependability 209 Quality of Service 210 High Availability 210 Can Load Balancing Enhance and Extend Your Network? 211 Vendor Credibility and Their Support Infrastructure 211 Load-Balancing Solutions from F5 212 First-Generation Load-Balancing Solutions 213 What Takes a Site Down? 213 Guaranteeing Availability to Your Client 214 Cisco Systems’ LocalDirector 215 Scaling a Server Farm 215 High Availability 217 Managing Your Server Connections 218 Security with the LocalDirector 219 LocalDirector Configuration Samples 219 Multiple Virtual Servers and One Real Server 223 Multiple Virtual Servers and Multiple Real Servers 226 Foundry Networks’ ServerIron 228 Content Delivery Networks 230 Today’s Content Delivery Landscape 231 Functional Components of a CDN 232 How Do CDNs Work? 232 Who Needs CDNs? 233 Content Providers 234 What Do Content Publishers Require from CDNs? 235 CDN Service Providers 237
  17. xviii Contents What CDN Service Providers Require 238 CDN Deployment Basics and Considerations 239 Network Service Providers 239 Satellite-Based Network Service Providers 240 What Network Service Providers Require from CDN Service Providers and CDN Component Product Makers 240 CDN Product Manufacturers 240 Enterprises 241 Consumers 241 The CDN Services Landscape 241 Industry Standardization Efforts 241 The Content Alliance 242 The Content Bridge Alliance 243 CDN Solutions from Various Vendors 244 Inktomi Content Delivery Suite 244 Inktomi Content Distributor 246 Inktomi Content Manager 247 Cisco System’s Content Delivery Networks and Next-Generation Content-Based Services 247 Cisco’s CDN Group 248 Akamai and F5 Networks’ Combined Offerings 249 Akamai’s Solution 249 F5 Products 250 Summary 251 Solutions Fast Track 252 Frequently Asked Questions 255 Chapter 5 Storage Solutions 257 Introduction 258 Upfront Concerns and Selection Criteria 259 Concerns for Your Storage Devices 259 Host Independence 259 Mixed Vendor Support 260
  18. Contents xix Security 260 Legacy Support 261 System Availability 262 Price versus Performance 262 Directly Attached Storage in Your Infrastructure 263 Choose the Best Storage Solution for Network Attached Storage Solutions 264 Your Company Quality of Service 266 Location of NAS in Your Network 266 Six major concerns and Storage Area Networks 267 criteria should be taken The Need for SAN 267 into account before deciding on the storage Benefits of SAN 268 solution that best fits your SAN Virtualization 270 requirements: Multihost Arrays 270 s Host independence Logical Unit Number Masking 271 s Mixed vendor support In-Band Virtualization 272 s Security Storage Domain Servers 273 s Legacy support NAS versus SAN 274 s System availability s Price versus Comparing Fiber Channel to SCSI 275 performance The Benefits of Fiber Channel 276 What Are the Limitations of SCSI? 277 All Fiber versus Mixed Solutions 277 SAN Management 280 Capacity Management 281 Configuration Management 281 Performance Management 281 Availability Management 281 Scalability and How It Affects Your Business 282 Storage in Your Infrastructure 282 Wire Speed and How It Can Help You 284 One versus Many 287 Fault Tolerance Features and Issues 288 Shared Resources 289 Data Backup 289 Remote Mirroring 290 Synchronous 290 Asynchronous 291
Đồng bộ tài khoản