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Written for software engineers, this book explains how to program the microengines of Intel's IXP 1200 family of network processors. The book describes the hardware and development environment and uses a series of expanding examples to outline the correct approach to programming. Common mistakes are identified. The book assumes no previous experience with Intel IXA components. A companion CD-ROM contains the microengine code examples used in the book and a IXA developer's kit for building applications. Johnson and Kunze are software engineers at Intel Labs. Annotation c. Book News, Inc., Portland, OR (booknews.com)

Tabla de contenidos provista por Syndetics

• Part I Peer-To-Peer Computing(p. 1)
• Chapter 1 A New Computing Model for the Internet
• What is Peer-to-Peer Computing?--First Take(p. 4)
• In One Word: Interoperability(p. 6)
• The Popular View of Peer-to-Peer(p. 8)
• Why and Why Now?(p. 10)
• What is Peer-to-Peer Computing(p. 13)
• What P2P Computing Can Do for You(p. 20)
• The Peer-to-Peer Challenge(p. 22)
• Chapter 2 Envision the Future
• A Day in the Life of a Peer(p. 25)
• The User's Perspective(p. 32)
• The Implications for IT(p. 35)
• The Potential for the Application Developer(p. 38)
• Chapter 3 Precursors--A Historical Perspective
• Direct Exchanges--The Beginning(p. 42)
• Distributed Processing(p. 43)
• Early Collaborative Applications(p. 48)
• Part II Laying The Foundations(p. 51)
• Chapter 4 Architecture and Infrastructure
• Nomenclature and Concepts(p. 54)
• The Net Infrastructure(p. 59)
• Objectives, Attributes, and Requiremens of the Middleware(p. 63)
• Middleware Services(p. 69)
• Design Approaches(p. 75)
• Chapter 5 An Overview of Reference Architectures
• Infrastructure for Distributed Computing(p. 84)
• Entropia: Internet-based Distributing Computing(p. 85)
• United Devices: Creating the MetaProcessor[superscript +] Platform for Tapping into Unused Resources(p. 88)
• Environments for Content Sharing(p. 91)
• OpenCola: Delivery of Relevant Content(p. 92)
• Mangosoft: Clustering and Technologies for Distributed File Systems(p. 97)
• NextPage: Unifying Content without Centralizing(p. 102)
• The Escher Group: Data Management and Distributed Messaging(p. 105)
• Frameworks for Collaborations(p. 110)
• Groove Networks: Internet-Based Collaboration(p. 111)
• Endeavors: Inclusive Peer-to-Peer Collaboration with Magi(p. 115)
• Engenia: Information Sharing and Interactivity(p. 119)
• Towards a General-Purpose P2P Infrastructure(p. 122)
• AVAKI: Integrated Architecture for Secure Resource Sharing(p. 123)
• Grid Computing for Large-Scale Resource Sharing(p. 126)
• Summary of Approaches and Objectives(p. 130)
• Chapter 6 First, Peers Need to Communicate
• About Addresses, Names, and Protocols(p. 133)
• What is TCP/IP?(p. 135)
• Addresses on the Net(p. 136)
• Associating Names with Addresses(p. 139)
• The Tree of Protocols and other Standards(p. 141)
• HTTP(p. 141)
• XML(p. 141)
• SOAP(p. 142)
• WebDAV(p. 142)
• UDDI(p. 143)
• XPath(p. 143)
• Constructing the Tree of Protocols(p. 144)
• Dealing with Firewalls and NATs(p. 145)
• NATs and How they Work(p. 146)
• Firewalls(p. 150)
• Addressing NAT and Firewall Traversal(p. 151)
• NATs and Firewalls--where do we go from here?(p. 155)
• Current Practices(p. 157)
• The Interplay of Protocol Use(p. 157)
• Employing Higher-Level Protocols(p. 159)
• Proprietary Protocols(p. 159)
• Managing on the Net(p. 161)
• Concluding Observations(p. 164)
• Chapter 7 Next, Name and Find Everyone and Everything
• The Name Space Issue(p. 167)
• Group Identities(p. 170)
• Examples of P2P Naming Schemes(p. 171)
• Useful Technologies(p. 176)
• Metadata for P2P Services(p. 176)
• Intelligent Agents in P2P Computing(p. 177)
• Finding out about things: Search, Discovery, and Directories(p. 180)
• Protocols(p. 182)
• More about UDDI(p. 182)
• LDAP(p. 183)
• Discovery and Search Practices(p. 184)
• In Closing(p. 188)
• Chapter 8 Then, Peers Wish to Stay Connected
• Intermittent Presence(p. 190)
• Fault-tolerance(p. 191)
• Content Coherency and Synchronization(p. 192)
• Availability of Resources(p. 194)
• Availability of Content(p. 195)
• Intermediation--With Fault-tolerance and Performance(p. 196)
• System Management(p. 197)
• Lessons, Observations(p. 198)
• Chapter 9 Security--The Big Concern
• Why Security is such a Big Deal for P2P(p. 202)
• Authentication: Know who you're talking to(p. 204)
• Authorization: You Control what is Allowed on Your System(p. 206)
• Access Control(p. 207)
• Sandboxing(p. 208)
• Data Integrity: No One Modified Your Transmissions(p. 209)
• Security Models and Practices(p. 211)
• Security for an Object-Based Infrastructure(p. 211)
• Security in Shared Spaces(p. 216)
• Grid Security Infrastructure(p. 220)
• Securing Distributed Internet Computing(p. 223)
• Applying Security Basics in P2P Networks(p. 224)
• Security with WebRiposte from The Escher Group(p. 224)
• Engenia's Collaborative Services Platform(p. 225)
• Security Between Magi Peers(p. 226)
• Security in Mangosoft's Mangomind(p. 227)
• The Peer-to-Peer Trusted Library(p. 228)
• Concluding Remarks(p. 230)
• Chapter 10 Cooperative Management of Shared Resources
• Managing Distributed Resources(p. 234)
• The Globus approach(p. 234)
• Managing Resources in Avaki(p. 237)
• Computational Resources(p. 239)
• Shared Storage(p. 242)
• Network Bandwidth(p. 244)
• Control of Resource Usage(p. 246)
• Part III Successes and Challenges(p. 249)
• Chapter 11 Applying Peer-to-Peer Technologies
• Interactive Collaborations(p. 252)
• Collaboration and Communities(p. 252)
• P2P and Online Development Projects(p. 255)
• Online Gaming Communities(p. 256)
• Computing Communities(p. 256)
• Join Forces for Virus Protection(p. 258)
• Relevant Content through P2P(p. 259)
• P2P and Knowledge Management(p. 260)
• Distribution of Content the P2P-Way(p. 261)
• Usages of Edge Services(p. 262)
• Applying P2P to Search and Discovery(p. 263)
• Distributed Computing(p. 265)
• Distributed Computing on the Internet(p. 265)
• Distributed Computing on the Intranet(p. 268)
• Grid Computing(p. 269)
• Web Testing(p. 272)
• Concluding Remarks(p. 274)
• Chapter 12 Challenges and Outlook
• Technical Challenges(p. 275)
• Connectivity(p. 276)
• Security and Privacy(p. 276)
• Fault-tolerance and Availability(p. 278)
• Performance and Bandwidth(p. 278)
• Scalability(p. 280)
• Self-Managed Systems(p. 281)
• Interoperability--Standards, Protocols(p. 281)
• Dealing with Complexity(p. 283)
• Social and Mindset Challenges(p. 284)
• Self-Organization and the Centralized Mindset(p. 284)
• Concerns of IT Managers(p. 286)
• Creation of Online Communities(p. 287)
• Trust Between Remote Users(p. 287)
• Trust and Reputation(p. 288)
• Protection from Undesirable Content(p. 289)
• How to Create the "P2P Groundswell"(p. 289)
• About Business Models(p. 290)
• Looking Ahead(p. 291)
• Industry Initiatives and Research(p. 292)
• Outlook(p. 294)
• References(p. 297)
• Glossary(p. 305)
• Index(p. 329)
• Figures
• 1.1 P2P computing is decentralized and at the edges of the net(p. 5)
• 1.2 Find and download a file: client-server model and P2P model(p. 14)
• 1.3 P2P Middleware(p. 23)
• 2.1 Identity, communities, and profiles(p. 33)
• 2.2 IT and P2P: Storage, maintenance, cycle sharing, and edge services(p. 37)
• 4.1 The three vectors of P2P computing(p. 56)
• 4.2 High level view of P2P architecture(p. 57)
• 4.3 Building blocks of the physical infrastructure(p. 59)
• 4.4 On the web without P2P(p. 60)
• 4.5 Peer computing on the Web(p. 61)
• 4.6 Components of the physical infrastructure(p. 62)
• 4.7 Components of middleware layer(p. 70)
• 5.1 The Entropia system(p. 87)
• 5.2 The MetaProcessor and UD Agent architecture(p. 90)
• 5.3 The OpenCola network architecture(p. 96)
• 5.4 Extending a file system service from the local net to the Internet using Mangomind(p. 100)
• 5.5 Cachelink architecture(p. 101)
• 5.6 Rings of decentralization(p. 103)
• 5.7 NextPage architecture(p. 104)
• 5.8 WebRiposte system overview(p. 107)
• 5.9 WebRiposte network and caching architecture(p. 110)
• 5.10 Groove architecture(p. 114)
• 5.11 Architecture of the Magi client, or "servlet"(p. 118)
• 5.12 Architectural view of the Engenia platform(p. 121)
• 5.13 Avaki's distributed middleware architecture(p. 124)
• 5.14 An application developer's view of the Globus architecture(p. 129)
• 6.1 Mapping TCP/IP to the OSI Model(p. 134)
• 6.2 TCP, IP address, port, and the application(p. 140)
• 6.3 The tree of protocols and standards(p. 144)
• 6.4 NAT network topologies(p. 149)
• Tables
• 2.1 Summary of the P2P user scenarios(p. 31)
• 5.1. Platform categories for everyday scenarios(p. 83)

Notas de autor provistas por Syndetics

This insider's account of Peer-to-Peer (P2P) Computing takes you from past experimental projects to the present resurgence, and looks into its future as a computing model for businesses and consumers on the Internet. Whether you are an application developer, an IT professional, or an end user, this book will help you discover what the P2P buzz is all about. Included are some early success stories and discussions of the challenges still ahead. Learn about the technologies that form the foundation on which P2P applications can be developed. Read about solutions and innovations from the pioneering work done by the most creative developers in the P2P arena. This book portrays P2P computing as a viable set of technologies and a computing model for business and the enterprise, as well as for self-organized, self-managed online communities of consumers. P2P is about secure direct exchanges and sharing of resources at the edge of the network. It enhances and complements current network computing in wonderful and exciting ways. At home and in the corporate world, for e-commerce and for entertainment, P2P enables novel applications and usages in three categories: meaningful collaborations through direct exchanges, relevant content discovery and delivery, and efficient use of shared resources. Whether you are an application developer, an IT professional, or an end user, this book will help you to discover what the P2P buzz is all about.