The Art of Network Architecture Business-Driven Design The business-centered, business-driven guide to architecting and evolving networks The Art of Network Architecture is the first book that places business needs and capabilities at the center of the process of architecting and evolving networks. Two leading enterprise network architects help you craft solutions that are fully aligned with business strategy, smoothly accommodate change, and maximize future flexibility. Russ White and Denise Donohue guide network designers in asking and answering the crucial questions that lead to elegant, high-value solutions. Carefully blending business and technical concerns, they show how to optimize all network interactions involving flow, time, and people. The authors review important links between business requirements and network design, helping you capture the information you need to design effectively. They introduce today's most useful models and frameworks, fully addressing modularity, resilience, security, and management. Next, they drill down into network structure and topology, covering virtualization, overlays, modern routing choices, and highly complex network environments. In the final section, the authors integrate all these ideas to consider four realistic design challenges: user mobility, cloud services, Software Defined Networking (SDN), and today's radically new data center environments. * Understand how your choices of technologies and design paradigms will impact your business * Customize designs to improve workflows, support BYOD, and ensure business continuity * Use modularity, simplicity, and network management to prepare for rapid change * Build resilience by addressing human factors and redundancy * Design for security, hardening networks without making them brittle * Minimize network management pain, and maximize gain * Compare topologies and their tradeoffs * Consider the implications of network virtualization, and walk through an MPLS-based L3VPN example * Choose routing protocols in the context of business and IT requirements * Maximize mobility via ILNP, LISP, Mobile IP, host routing, MANET, and/or DDNS * Learn about the challenges of removing and changing services hosted in cloud environments * Understand the opportunities and risks presented by SDNs * Effectively design data center control planes and topologies

Jess Wirth lives a dreary life. He spends most of his time crammed inside a cubicle, toiling as a network engineer and stewing over the details of his ugly divorce. But when he finds his co-worker dead in the basement of their office, Jess's life takes a surprising-and unpleasant-turn. The police quickly declare the death a suicide, but Jess isn't so sure. Not long after he begins digging into the victim's work, another co-worker turns up dead, convincing him once and for all that something sinister is brewing behind the cubicle walls. His investigation leads him to a mysterious woman name Leah, who pushes him to entrust her with the information he's collected about his dead colleagues. Wary of Leah's motives yet inexorably drawn to her, Jess keeps her at arm's length...until an attempt is made on both their lives. Realizing they are close on the trail of a dangerous criminal, the pair race to expose a data theft ring before they become the killer's next victims.

Techniques for optimizing large-scale IP routing operation and managing network growth * Understand the goals of scalable network design, including tradeoffs between network scaling, convergence speed, and resiliency * Learn basic techniques applicable to any network design, including hierarchy, addressing, summarization, and information hiding * Examine the deployment and operation of EIGRP, OSPF, and IS-IS protocols on large-scale networks * Understand when and how to use a BGP core in a large-scale network and how to use BGP to connect to external networks * Apply high availability and fast convergence to achieve 99.999 percent, or five 9s network uptime * Secure routing systems with the latest routing protocol security best practices * Understand the various techniques used for carrying routing information through a VPN Optimal Routing Design provides the tools and techniques, learned through years of experience with network design and deployment, to build a large-scale or scalable IP-routed network.The book takes an easy-to-read approach that is accessible to novice network designers while presenting invaluable, hard-to-find insight that appeals to more advanced-level professionals as well. Written by experts in the design and deployment of routing protocols, Optimal Routing Design leverages the authors' extensive experience with thousands of customer cases and network designs. Boiling down years of experience into best practices for building scalable networks, this book presents valuable information on the most common problems network operators face when seeking to turn best effort IP networks into networks that can support Public Switched Telephone Network (PSTN)-type availability and reliability. Beginning with an overview of design fundamentals, the authors discuss the tradeoffs between various competing points of network design, the concepts of hierarchical network design, redistribution, and addressing and summarization. This first part provides specific techniques, usable in all routing protocols, to work around real-world problems.The next part of the book details specific information on deploying each interior gateway protocol (IGP)-including EIGRP, OSPF, and IS-IS-in real-world network environments. Part III covers advanced topics in network design, including border gateway protocol (BGP), high-availability, routing protocol security, and virtual private networks (VPN). Appendixes cover the fundamentals of each routing protocol discussed in the book; include a checklist of questions and design goals that provides network engineers with a useful tool when evaluating a network design; and compare routing protocols strengths and weaknesses to help you decide when to choose one protocol over another or when to switch between protocols. The complexity associated with overlaying voice and video onto an IP network involves thinking through latency, jitter, availability, and recovery issues. This text offers keen insights into the fundamentals of network architecture for these converged environments.-John Cavanaugh, Distinguished Services Engineer, Cisco Systems(R) This book is part of the Networking Technology Series from Cisco Press' which offers networking professionals valuable information for constructing efficient networks, understanding new technologies, and building successful careers.