An essential guide to understanding the Cisco IOS architecture In-depth coverage of Cisco's IOS Software architecture provides crucial information to: Prevent network problems and optimize performance through more efficient design and configuration Isolate and resolve network problems more quickly and easily Apply the appropriate packet switching method, such as process switching, fast switching, optimum switching, or Cisco Express Forwarding (CEF) Understand the hardware architecture, packet buffering, and packet switching processes for shared memory routers (Cisco 1600, 2500, 3600, 4000, 4500, and 4700 series) Understand the hardware architecture, packet buffering, and packet switching processes for the Cisco 7200 series routers Understand the hardware architecture, packet buffering, and packet switching processes for the Cisco 7500 series routers Understand the hardware architecture, packet buffering, and packet switching processes for the Cisco GSR 12000 series routers Further your knowledge of how IOS Software implements Quality of Service (QoS) Inside Cisco IOS Software Architecture offers crucial and hard-to-find information on Cisco's Internetwork Operating System (IOS) Software. IOS Software provides the means by which networking professionals configure and manage Cisco networking devices. Beyond understanding the Cisco IOS command set, comprehending what happens inside Cisco routers will help you as a network designer or engineer to perform your job more effectively. By understanding the internal operations of IOS Software, you will be able to take architectural considerations into account when designing networks and isolate problems more easily when troubleshooting networks. Inside Cisco IOS Software Architecture provides essential information on the internal aspects of IOS Software at this level, and it is an invaluable resource for better understanding the intricacies of IOS Software and how it affects your network. Inide Cisco IOS Software Architecture begins with an overview of operating system concepts and the IOS Software infrastructure, including processes, memory management, CPU scheduling, packet buffers, and device drivers, as well as a discussion of packet switching architecture with detailed coverage of the various platform-independent switching methods, including process switching, fast switching, optimum switching, and Cisco Express Forwarding (CEF). The book then delves into the intricate details of the design and operation of platform-specific features, including the 1600, 2500, 4x00, 3600, 7200, 7500, and GSR Cisco routers. Finally, an overview of IOS Quality of Service (QoS) is provided, including descriptions of several QoS methods, such as priority queuing, custom queuing, weighted fair queuing, and modified deficit round robin.

Summary Learn Cisco Network Administration in a Month of Lunches is a tutorial designed for beginners who want to learn how to administer Cisco switches and routers. Just set aside one hour a day (lunchtime would be perfect) for a month, and you'll start learning practical Cisco Network administration skills faster than you ever thought possible. Purchase of the print book includes a free eBook in PDF, Kindle, and ePub formats from Manning Publications. About the Technology Cisco's ultrareliable routers and switches are the backbone of millions of networks, but "set and forget" is not an acceptable attitude. Fortunately, you don't have to be an old-time administrator to set up and maintain a Cisco-based network. With a handful of techniques, a little practice, and this book, you can keep your system in top shape. About the Book Learn Cisco Network Administration in a Month of Lunches is designed for occasional and full-time network administrators using Cisco hardware. In 22 bite-sized lessons, you'll learn practical techniques for setting up a Cisco network and making sure that it never fails. Real-world labs start with configuring your first switch and guide you through essential commands, protocols, dynamic routing tricks, and more. What's Inside Understand your Cisco network, including the difference between routers and switches Configure VLANs and VLAN trunks Secure your network Connect and configure routers and switches Establish good maintenance habits About the Reader This book is written for readers with no previous experience with Cisco networking. About the Author Ben Piper is an IT consultant who holds numerous Cisco, Citrix, and Microsoft certifications including the Cisco CCNA and CCNP. He has created many video courses on networking, Cisco CCNP certification, Puppet, and Windows Server Administration. Table of Contents Before you begin What is a Cisco network? A crash course on Cisco's Internetwork Operating System Managing switch ports Securing ports by using the Port Security feature Managing virtual LANs (VLANs) Breaking the VLAN barrier by using switched virtual interfaces IP address assignment by using Dynamic Host Configuration Protocol Securing the network by using IP access control lists Connecting switches using trunk links Automatically configuring VLANs using the VLAN Trunking Protocol Protecting against bridging loops by using the Spanning Tree Protocol Optimizing network performance by using port channels Making the network scalable by connecting routers and switches together Manually directing traffic using the IP routing table A dynamic routing protocols crash course Tracking down devices Securing Cisco devices Facilitating troubleshooting using logging and debugging Recovering from disaster Performance and health checklist Next steps

Written as a comprehensive guide for intermediate and advanced network professionals, who want to install or maintain a Cisco switching environment or learn about Cisco switching technologies. No other book thoroughly covers the advanced topics required to achieve this level of comprehensive Cisco knowledge or certification in the new CCNP curriculum. Includes valuable information for those studying for the CCNP certification including tips and hints, sample review questions and lab exercises. Explores complex topics in-depth, in the popular Black Book format, using a complete systematic approach to Cisco switching along with comprehensive examples and diagrams.

Cisco Systems is known among the technology elite in Silicon Valley as one of the most successful companies to emerge from the Valley in many years. It has been dubbed computing's next Superpower. Just as Intel and Microsoft soared to lofty heights with the rise of the personal computer, Cisco Systems is flying on the spectacular updraft of the Internet. The company, which makes specialized computers that route information through a network--acting as a sort of data traffic cop--has captured 85 percent of the market for routers used as the backbone of the biggest network of them all, the Internet. As a result, over the last five years, the value of Cisco's total outstanding stock has risen over 2,000 percent--twice the increase of Microsoft Corp. stock in the same period. Beginning as a tale of two college sweethearts at Stanford University who cofounded the company fifteen years ago, the often-told Cisco legend has all the makings of a great novel--love, money, a villain or two, corporate coups, and the sweet taste of victory. But mostly, the Cisco story is a very unusual tale of corporate success. Despite the struggle of passing through several regimes, Cisco managed to hit all the crucial spots of its business. Cisco consistently bested competitors like 3Com and IBM with insight, innovation, customer focus, and one of the biggest corporate buying sprees in history. Making the Cisco Connection deftly traces the networking giant's path to success, from its founding couple, Sandra Lerner and Leonard Bosack, to current CEO John Chambers. It highlights the company's astounding knack for buying other businesses and making them part of a huge conglomerate; its own highly developed use of technology; and its unusually tight-knit culture. Featuring the perspective of top Cisco executives and competitors, this book reveals how Cisco's technology, employees, and even its competition have blended to make Cisco possibly the most important company shaping the future of communications. Next to ruthless competitors Microsoft and Intel, Cisco shines with a kinder, gentler image, emphasizing happy customers and employees. You'll see how Cisco built its impressive culture by cultivating community, boosting morale, whittling down bureaucracy, and saving money to boot. This book also explains how Cisco is positioning itself to enter a new competitive playing field, moving beyond Internet routers in an attempt to build a single, giant, global communications system--based on the Internet--that would make the current telephone system obsolete. Cisco wants to be the company that delivers the infrastructure of this new network, which will combine computer networks with telephones, television, radio, and satellite communications. To do that, it is now challenging global giants such as Lucent Technologies and Fujitsu. Cisco plans to become the backbone of the entire communications industry, making it a corporation of incredible power as the Internet Age blossoms in the new millennium. Provocative and instructive, Making the Cisco Connection traces the unique history of one of the most profitable and enduring technology companies in business today. Acclaim for Making the CISCO Connection "If you want to learn the whole scoop about the first Internet-Age company, and one of the most successful firms of any age, you've come to the right place. Bunnell's treatment of Cisco's rise--and continued rise--is fascinating and full of human detail. It's clear that Cisco is not just a firm with great technology, but also great leaders and managers."--Thomas H. Davenport, Director, Andersen Consulting Institute for Strategic Change; Professor, Boston University School of Management "Cisco has emerged as a twenty-first century leader. David Bunnell captures the ongoing story of the Cisco executive team exploiting IT, structuring a unique organization, and creating a dynamic strategy for this breakaway dot com company."--Richard L. Nolan, William Barclay Harding Professor of Business Administration, Harvard Business School

Cisco routers are everywhere that networks are. They come in all sizes, from inexpensive units for homes and small offices to equipment costing well over $100,000 and capable of routing at gigabit speeds. A fixture in today's networks, Cisco claims roughly 70% of the router market, producing high-end switches, hubs, and other network hardware. One unifying thread runs through the product line: virtually all of Cisco's products run the Internetwork Operating System, or IOS. If you work with Cisco routers, it's likely that you deal with Cisco's IOS software--an extremely powerful and complex operating system, with an equally complex configuration language. With a cryptic command-line interface and thousands of commands--some of which mean different things in different situations--it doesn't have a reputation for being user-friendly. Fortunately, there's help. This second edition of Cisco IOS in a Nutshell consolidates the most important commands and features of IOS into a single, well-organized volume that you'll find refreshingly user-friendly. This handy, two-part reference covers IOS configuration for the TCP/IP protocol family. The first section includes chapters on the user interface, configuring lines and interfaces, access lists, routing protocols, and dial-on-demand routing and security. A brief, example-filled tutorial shows you how to accomplish common tasks. The second part is a classic O'Reilly quick reference to all the commands for working with TCP/IP and the lower-level protocols on which it relies. Brief descriptions and lists of options help you zero in on the commands you for the task at hand. Updated to cover Cisco IOS Software Major Release 12.3, this second edition includes lots of examples of the most common configuration steps for the routers themselves. It's a timely guide that any network administrator will come to rely on.

This book picks Cisco as an example to propose a framework of ambidextrous integration of innovation and operation, which is the key to the success of global companies along their evolutions, especially for those technology companies. The authors try to find how the company combines active innovation and efficient operation for its sustainable development. On the basis of comprehensive analysis of the strategic leadership, change management, innovation system, M&As, IT-enabled value chains, collaboration, etc., in Cisco, as well as the interviews with Cisco staff, this book shows that management practices shape the balance of internal-external resources for explorative-exploitative innovations. IT strategies and implementation enable efficient operations when innovations are identified and justified in the leading company. Managerial insights for sustainable competitiveness can be gained from Cisco practices in this book. The companion of the book, Huawei: From Catching up to Lead, telling another growth path of technology company in China by similar framework.

Annotation An essential guide to understanding the Cisco IOS architectureIn-depth coverage of Cisco's IOS Software architecture provides crucial information to:Prevent network problems and optimize performance through more efficient design and configurationIsolate and resolve network problems more quickly and easilyApply the appropriate packet switching method, such as process switching, fast switching, optimum switching, or Cisco Express Forwarding (CEF)Understand the hardware architecture, packet buffering, and packet switching processes for shared memory routers (Cisco 1600, 2500, 3600, 4000, 4500, and 4700 series)Understand the hardware architecture, packet buffering, and packet switching processes for the Cisco 7200 series routersUnderstand the hardware architecture, packet buffering, and packet switching processes for the Cisco 7500 series routersUnderstand the hardware architecture, packet buffering, and packet switching processes for the Cisco GSR 12000 series routersFurther your knowledge of how IOS Software implements Quality of Service (QoS)Inside Cisco IOS Software Architectureoffers crucial and hard-to-find information on Cisco's Internetwork Operating System (IOS) Software. IOS Software provides the means by which networking professionals configure and manage Cisco networking devices. Beyond understanding the Cisco IOS command set, comprehending what happens inside Cisco routers will help you as a network designer or engineer to perform your job more effectively. By understanding the internal operations of IOS Software, you will be able to take architectural considerations into account when designing networks and isolate problems more easily when troubleshooting networks. Inside Cisco IOS Software Architectureprovides essential information on the internal aspects of IOS Software at this level, and it is an invaluable resource for better understanding the intricacies of IOS Software and how it affects your network. Inide Cisco IOS Software Architecturebegins with an overview of operating system concepts and the IOS Software infrastructure, including processes, memory management, CPU scheduling, packet buffers, and device drivers, as well as a discussion of packet switching architecture with detailed coverage of the various platform-independent switching methods, including process switching, fast switching, optimum switching, and Cisco Express Forwarding (CEF). The book then delves into the intricate details of the design and operation of platform-specific features, including the 1600, 2500, 4x00, 3600, 7200, 7500, and GSR Cisco routers. Finally, an overview of IOS Quality of Service (QoS) is provided, including descriptions of several QoS methods, such as priority queuing, custom queuing, weighted fair queuing, and modified deficit round robin.