Written by the creator of the OSPF (Open Shortest Path First) protocol, this book demonstrates the protocol in action with a complete OSPF implementation. It shows how the protocol's theory is realized in a real-time distributed software system, reveals many of the finer points of OSPF, and offers experienced-based optimization and porting techniques. The implementation described and examined in this book is written in C++ and designed with porting in mind. The book details the software architecture of the implementation and describes in-depth key OSPF functions, illustrated by numerous code samples. It also includes a guide to porting OSPF software to different environments, with an explanation of the software layer between the OSPF implementation and the operating system. In addition, two sample ports are included-a routing daemon for Linux and an OSPF routing simulator for Linux and Windows. Key topics covered include: Implementation architecture, including I/O, data flow, and data structures Porting considerations, including handling different types of CPU chips AVL trees, Patricia trees, priority queues, timers, and logging messages The IP routing table Link-state database, including aging LSAs Neighbor discovery and the neighbor state machine Synchronization of link-state databases through the flooding algorithm Hierarchy Routing calculations, including intra-area, inter-area, and external routes An implementation of the Multicast Extensions to OSPF (MOSPF) Configuration and monitoring, including cryptographic authentication Host wiretapping Together, OSPF: Anatomy of an Internet Routing Protocol and OSPF Complete Implementation provide an in-depth view into the theory and inner workings of OSPF, and the knowledge you need to make full use of this important protocol in Internet-based applications.

Practical throughout, this book provides not only a theoretical description of Internet routing, but also a real-world look at theory translated into practice. For example, Moy describes how algorithms are implemented, and shows how the routing protocols function in a working network where transmission lines and routers routinely break down.

"Cisco OSPF Command and Configuration Handbook is a clear, concise, and complete source of documentation for all Cisco IOS Software OSPF commands. The way you use this book will depend on your objectives. If you are preparing for the CCIE written and lab exams, then this book can be used as a laboratory guide to learn the purpose and proper use of every OSPF command. If you are a network designer, then this book can be used as a ready reference for any OSPF command. Author Bill Parkhurst provides concise snapshots of every command with regard to command purpose, usage, syntax explanation, initial introduction in Cisco IOS Software, and cross references to related commands also covered in the book. This book covers many OSPF topic areas, including interface configuration, OSPF area configuration, route filtering, OSPF process configuration, route cost, default route generation, redistribution, administrative distance, OSPF neighbor relationships, route summarization, and show, debug, and clear commands"--Resource description page.

The comprehensive reference for OSPF network design and deployment bull; Understand the full dynamics of OSPF network components, how they interact with one another, and how to configure them Increase the efficiency of your OSPF network through a variety of performance tuning techniques Apply load balancing to enhance OSPF's capability to adapt to network topology changes Ensure seamless communication between OSPF and other Interior Gateway Protocols (IGPs) and OSPF and BGP through redistribution Optimize network stability and efficiency with OSPF summarization Maximize your ability to properly manage an ever-changing OSPF network landscape through Simple Network Management Protocol (SNMP) and Management Information Bases (MIBs) Develop a practiced, tested security plan to protect your OSPF network Optimize the efficiency and bandwidth of your OSPF network through the integration of MPLS Complete your basic OSPF knowledge gaps with a boiled down summary of the OSPF RFCs One of the most prevalent Interior Gateway Protocols (IGPs), OSPF is in use in numerous networks across the globe. Open Shortest Path First (OSPF) is also one of the most widely tested protocols if you choose to pursue a networking certification. From a technical perspective, the overwhelming presence of OSPF ensures that you will encounter it at some point in your career. As a result, every networking professional should understand how OSPF operates, how to configure and troubleshoot this important protocol, and most importantly how to design a network that uses OSPF. OSPF Network Design Solutions, Second Edition provides comprehensive coverage of OSPF network design, deployment, management, and troubleshooting. The book begins in Part I by providing you with a common-sense understanding of the primary building blocks of internetworking, and follows up with a detailed examination of how OSPF fits into the big picture. You will also learn how OSPF neighboring routers communicate with one another via link-state advertisements (LSAs) and how to optimize this communication for network efficiency. Part II begins with a detailed explanation of how to apply the "golden rules of design" to create an optimal OSPF network and follows up with a logical approach to configuring OSPF routers and areas. Part II concludes with hard-to-find information about how to redistribute RIP into OSPF and OSPF into BGP as well as how to make your OSPF network more efficient through summarization. Part III provides you with detailed information about how to keep pace with network growth through tested network management tools and techniques. Furthermore, you will learn how to secure your OSPF network from inside and outside attackers and how to troubleshoot your network should problems arise. Part III concludes with timely information about how to accommodate BGP and MPLS in an OSPF network.

Be prepared for the CCIE exam - or hone your Cisco expertise - with this best-of-class guide to network design and implementation for the OSPF (Open Shortest Path First) protocol. Both comprehensive and practical, Cisco Router OSPF doesn't leave you guessing. It picks up where Cisco documentation leaves off and explains everything from the underlying mechanisms of network data transmission to configuration issues and OSPF troubleshooting.

Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide is ideal for certification candidates who are seeking a tool to learn all the topics covered in the ROUTE 642-902 exam --Book Jacket.

Annotation Offers a comprehensive explanation of the inner workings of OSPF and IS-IS, the two protocols used in very large IP networks.

Routing Protocols Companion Guide is the official supplemental textbook for the Routing Protocols course in the Cisco® Networking Academy® CCNA® Routing and Switching curriculum. This course describes the architecture, components, and operations of routers, and explains the principles of routing and routing protocols. You learn how to configure a router for basic and advanced functionality. By the end of this course, you will be able to configure and troubleshoot routers and resolve common issues with RIPv1, RIPv2, EIGRP, and OSPF in both IPv4 and IPv6 networks. The Companion Guide is designed as a portable desk reference to use anytime, anywhere to reinforce the material from the course and organize your time. The book’s features help you focus on important concepts to succeed in this course: Chapter objectives–Review core concepts by answering the focus questions listed at the beginning of each chapter. Key terms–Refer to the lists of networking vocabulary introduced and highlighted in context in each chapter. Glossary–Consult the comprehensive Glossary with more than 150 terms. Summary of Activities and Labs–Maximize your study time with this complete list of all associated practice exercises at the end of each chapter. Check Your Understanding–Evaluate your readiness with the end-of-chapter questions that match the style of questions you see in the online course quizzes. The answer key explains each answer. How To–Look for this icon to study the steps you need to learn to perform certain tasks. Interactive Activities–Reinforce your understanding of topics by doing all the exercises from the online course identified throughout the book with this icon. Videos–Watch the videos embedded within the online course. Packet Tracer Activities–Explore and visualize networking concepts using Packet Tracer exercises interspersed throughout the chapters. Hands-on Labs–Work through all the course labs and Class Activities that are included in the course and published in the separate Lab Manual.

This is a Cisco authorized, self-paced learning tool for CCNP preparation. This book teaches readers how to design, configure, maintain, and scale routed networks that are growing in size and complexity. The book covers all routing principles covered in the CCNP Implementing Cisco IP Routing course. This intermediate-level text assumes that readers have been exposed to beginner-level networking concepts contained in the CCNA (ICND1 and ICND2) certification curriculum. No previous exposure to the CCNP level subject matter is required, so the book provides a great deal of detail on the topics covered.

Network routing can be broadly categorized into Internet routing, PSTN routing, and telecommunication transport network routing. This book systematically considers these routing paradigms, as well as their interoperability. The authors discuss how algorithms, protocols, analysis, and operational deployment impact these approaches. A unique feature of the book is consideration of both macro-state and micro-state in routing; that is, how routing is accomplished at the level of networks and how routers or switches are designed to enable efficient routing. In reading this book, one will learn about 1) the evolution of network routing, 2) the role of IP and E.164 addressing in routing, 3) the impact on router and switching architectures and their design, 4) deployment of network routing protocols, 5) the role of traffic engineering in routing, and 6) lessons learned from implementation and operational experience. This book explores the strengths and weaknesses that should be considered during deployment of future routing schemes as well as actual implementation of these schemes. It allows the reader to understand how different routing strategies work and are employed and the connection between them. This is accomplished in part by the authors' use of numerous real-world examples to bring the material alive. Bridges the gap between theory and practice in network routing, including the fine points of implementation and operational experience Routing in a multitude of technologies discussed in practical detail, including, IP/MPLS, PSTN, and optical networking Routing protocols such as OSPF, IS-IS, BGP presented in detail A detailed coverage of various router and switch architectures A comprehensive discussion about algorithms on IP-lookup and packet classification Accessible to a wide audience due to its vendor-neutral approach