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Designing Cisco Network Service Architectures (ARCH) Foundation Learning Guide: (CCDP ARCH 642-874), 3rd edition

  • John Tiso

Published by Cisco Press (November 1st 2011) - Copyright © 2012

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Designing Cisco Network Service Architectures (ARCH) Foundation Learning Guide: (CCDP ARCH 642-874)

ISBN-13: 9780132652971

Includes: Unassigned

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Overview

Table of contents

    Foreword xxx

    Introduction xxxi

Chapter 1 The Cisco Enterprise Architecture 1

    Reviewing Cisco Enterprise Architecture 1

    The Hierarchical Model 2

        Example Hierarchical Network 3

    Enterprise Network Design for Cisco Architectures 4

    Service and Application Integration 7

        Network Services 7

        Network Applications 9

        Modularity in Cisco Network Architectures for the Enterprise 9

    Reviewing the Cisco PPDIOO Approach 12

        PPDIOO Network Lifecycle Approach 13

        Benefits of the Lifecycle Approach 14

        Using the Design Methodology Under PPDIOO 16

    Identifying Customer Requirements 16

    Characterizing the Existing Network and Sites 17

    Designing the Topology and Network Solutions 18

        Dividing the Network into Areas 18

    Summary 20

    References 21

    Review Questions 21

Chapter 2 Enterprise Campus Network Design 23

    Designing High Availability in the Enterprise Campus 24

        Enterprise Campus Infrastructure Review 24

        Access Layer 24

        Distribution Layer 26

        Core Layer 27

        Collapsed-Core Model 29

        High-Availability Considerations 30

        Implement Optimal Redundancy 30

        Provide Alternate Paths 32

        Avoid Single Points of Failure 33

        Cisco NSF with SSO 33

        Routing Protocol Requirements for Cisco NSF 34

        Cisco IOS Software Modularity Architecture 35

        Example: Software Modularity Benefits 37

    Designing an Optimum Design for Layer 2 38

        Recommended Practices for Spanning-Tree Configuration 38

        Cisco STP Toolkit 40

        STP Standards and Features 40

    &n

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