Russ White – författare

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.

Design your networks to successfully manage their growing complexity

 

 

Network professionals have often been told that today’s modern control planes would simplify their networks. The opposite has happened: Technologies like SDN and NFV, although immensely valuable, are exacerbating complexity instead of solving it. Navigating Network Complexity is the first comprehensive guide to managing this complexity in both deployment and day-to-day operations.

 

Russ White and Jeff Tantsura introduce modern complexity theory from the standpoint of the working network engineer, helping you apply it to the practical problems you face every day. Avoiding complex mathematical models, they show how to characterize network complexity, so you can understand it and control it.

 

The authors examine specific techniques and technologies associated with network control planes, including SDNs, fast reroute, segment routing, service chaining, and cloud computing. They reveal how each of these affects network design and complexity and help you anticipate causes of failure in highly complex systems.

 

Next, they turn to modern control planes, examining the fundamental operating principles of SDNs, such as OpenFlow and I2RS, network and other service function virtualization, content distribution networks, Layer 2 fabrics, and service chaining solutions. You’ll learn how each of these might both resolve and increase complexity in network design and operations and what you can do about it.

 

Coverage includes:

 

Defining complexity, understanding its components, and measuring it Mastering a straightforward “state, speed, and surface” model for analyzing complexity Controlling complexity in design, deployment, operations, protocols, and programmable networks Understanding how complex network systems begin to fail and how to prevent failure Recognizing complexity tradeoffs in service virtualization and service chaining Managing new challenges of complexity in virtualized and cloud environments Learning why constructs such as hierarchical design, aggregation, and protocol layering work and when they work best Choosing the right models to contain complexity as your network changes

 

From start to finish, Navigating Network Complexity helps you assess the true impact of new network technologies, so they can capture more value with fewer problems.

 

Trust the best-selling Official Cert Guide series from Cisco Press to help you learn, prepare, and practice for the CCST Networking 100-150 exam. Well regarded for its level of detail, study plans, assessment features, and challenging review questions and exercises, Cisco Certified Support Technician CCST Networking 100-150 Official Cert Guide helps you master the concepts and techniques that ensure your exam success and is the only self-study resource approved by Cisco. Leading Cisco technology expert and best-selling author Russ White shares preparation hints and test-taking tips, helping you identify areas of weakness and improve both your conceptual knowledge and hands-on skills.

This complete study package includes

A test-preparation routine proven to help you pass the exam Do I Know This Already? quizzes, which allow you to decide how much time you need to spend on each section Exam Topic lists that make referencing easy Chapter-ending exercises, which help you drill on key concepts you must know thoroughly The powerful Pearson Test Prep Practice Test software, complete with hundreds of well-reviewed, exam-realistic questions, customization options, and detailed performance reports More than 5 hours of video mentoring from the author An online Flash Cards application to help you drill on Key Terms by chapter A final preparation chapter, which guides you through tools and resources to help you craft your review and test-taking strategies Study plan suggestions and templates to help you organize and optimize your study time

Content Update Program:

This Cert Guide includes coverage of all the topics on the Cisco Certified Support Technician CCST Networking exam from the original exam blueprint. Visit ciscopress.com/newcerts for information on any digital updates for this book that align with Cisco exam blueprint version changes

The Cisco Certified Support Technician CCST Networking 100-150 Official Cert Guide walks you through all the exam topics found in the Cisco CCST exam. Topics covered include

Standards and Concepts Addressing and Subnet Formats Endpoints and Media Types Infrastructure Diagnosing Problems Security

Companion Website

The companion website contains more than 200 unique practice exam questions, practice exercises, a study planner, online flash cards, and more than 5 hours of video training.

Pearson Test Prep online system requirements:

Browsers: Chrome version 73 and above, Safari version 12 and above, Microsoft Edge 44 and above.

Devices: Desktop and laptop computers, tablets running on Android v8.0 and above and iOS v13 and above, smartphones with a minimum screen size of 4.7”. Internet access required.

Pearson Test Prep offline system requirements:

Windows 11, Windows 10, Windows 8.1; Microsoft .NET Framework 4.5 Client; Pentium-class 1 GHz processor (or equivalent); 512 MB RAM; 650 MB disk space plus 50 MB for each downloaded practice exam; access to the Internet to register and download exam databases

Also available from Cisco Press for CCST study is the Cisco Certified Support Technician CCST Networking 100-150 Official Cert Guide Premium Edition and Practice Test. This digital-only certification preparation product combines an eBook with an enhanced Pearson Test Prep Practice Test.

This integrated learning package:

Enables you to focus on individual topic areas or take complete, timed exams Includes direct links from each question to detailed tutorials to help you understand the concepts behind the questions Provides unique sets of exam-realistic practice questions Tracks your performance and provides feedback on a module-by-module basis, laying out a complete assessment of your knowledge to help you focus your study where it is needed most

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®

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.

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