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Deploying QoS for Cisco IP and Next Generation Networks

Book Description

Deploying QoS for IP Next Generation Networks: The Definitive Guide provides network architects and planners with insight into the various aspects that drive QoS deployment for the various network types. It serves as a single source of reference for businesses that plan to deploy a QoS framework for voice, video, mobility and data applications creating a converged infrastructure. It further provides detailed design and implementation details for various service deployments across the various Cisco platforms such as the CRS-1, 12000, 7600 & 7200 series routers that are widely deployed in most Carrier Networks.

The book covers architectural and implementation specific information plus recommendations for almost all the popular line cards across the various hardware platforms widely used in the market. It also addresses QoS architecture and deployment on the Cisco CRS-1 platform and is considered as a unique selling point of this book.

In short the books serve as an "On the Job Manual" which can also be used as a study guide for Cisco specialist certification programs (CCNA, CCIP, CCIE)

This book will includes detailed illustration and configurations. In addition, it provides detailed case studies along with platform specific tests and measurement results. A link to a detailed tutorial on QoS metrics and associated test results will be available at the book's companion website in order to ensure that the reader is able to understand QoS functionality from a deployment standpoint.
  • Covers the requirements and solutions in deploying QoS for voice, video, IPTV, mobility and data traffic classes (Quad-play networks), saving the reader time in searching for hardware specific QoS information, given the abundance of Cisco platforms and line cards.
  • Presents real-life deployments by means of detailed case studies, allowing the reader to apply the same solutions to situations in the work place.
  • Provides QoS architecture and implementation details on Cisco CRS-1, 12000, 7600, and 7200 routing platforms using Cisco IOS/IOS-XR software, aiding the reader in using these devices and preparing for Cisco specialist certification.

Table of Contents

  1. Cover image
  2. Title page
  3. Table of Contents
  4. Copyright
  5. Preface
    1. Rationale
    2. Organization and Approach
    3. Audience
    4. Acknowledgments
  6. About the Authors
  7. Chapter 1. The Evolution of Communication Systems
    1. 1.1 Quality-of-Service Definition
    2. 1.2 Transmission Infrastructure Evolution
    3. 1.3 The First Global Communications Network: PSTN
    4. 1.4 The Internet and TCP/IP History
    5. 1.5 The Computer Age
    6. 1.6 Computer Internetworking
    7. 1.7 X.25 Packet Switching
    8. 1.8 The Evolution of Packet Switching: Frame Relay
    9. 1.9 Asynchronous Transfer Mode
    10. 1.10 Ethernet Beyond the LAN
    11. 1.11 IP as the Converged Protocol
    12. 1.12 The Emergence of Service-Level Agreements
    13. 1.13 The Service Provider Virtual Private Network
    14. 1.14 Evolution of the Telecommunications Industry
    15. 1.15 The Next-Generation Network Vision
    16. 1.16 The Cisco Next-Generation Network Framework
    17. 1.17 The Network Requirements
    18. 1.18 The Path to the Next-Generation Network
    19. 1.19 Upgrade the Existing ISP Network
    20. 1.20 Upgrade the Existing Enterprise VPN Infrastructure
    21. 1.21 A Completely New Core Network
    22. 1.22 What’s in This Book
    23. 1.23 Summary
  8. Chapter 2. Introduction to Cisco’s Quality-of-Service Architecture for IP Networks
    1. 2.1 Building Blocks of the IP NGN QoS Framework
    2. 2.2 IP Precedence
    3. 2.3 IP DSCP
    4. 2.4 IntServ Strengths and Shortcomings
    5. 2.5 The Differentiated Services (DiffServ) Architecture
    6. 2.6 DiffServ in Cisco Software
    7. 2.7 Classification and Marking
    8. 2.8 Traffic Policing
    9. 2.9 Shaping
    10. 2.10 Fitting the Components Together
    11. 2.11 Congestion Avoidance Using Weighted Random Early Detection
    12. 2.12 Congestion Management
    13. 2.13 Modular QoS CLI
    14. 2.14 Labeled Traffic
    15. 2.15 Unlabeled Traffic
    16. 2.16 Trust Boundaries
    17. 2.17 QoS Transparency
    18. 2.18 DiffServ Tunnel Modes
    19. 2.19 Business Objectives
    20. 2.20 The Tunnel Modes
    21. 2.21 Summary
  9. Chapter 3. Class-of-Service Requirements for Quad-Play Networks
    1. 3.1 Overview
    2. 3.2 Service-Level Agreements
    3. 3.3 In-Contract Traffic
    4. 3.4 Out-of-Contract Traffic
    5. 3.5 DiffServ QoS and Traffic-Mapping Options
    6. 3.6 Cisco QoS Baseline
    7. 3.7 RFC-4594 Configuration Guidelines for DiffServ Classes
    8. 3.8 Cisco QoS Baseline vs. RFC-4594
    9. 3.9 Enterprise-to-Service-Provider Mapping Options
    10. 3.10 QoS Requirements and Design for Video Applications
    11. 3.11 Broadcast Video: Internet Protocol Television
    12. 3.12 Video on Demand
    13. 3.13 Video Admission Control
    14. 3.14 RSVP-Based On-Path Admission Control
    15. 3.15 Multimedia Conferencing and Streaming: Video Streaming and Telephony
    16. 3.16 QoS Requirements and Design for Voice Over IP
    17. 3.17 Summary of Requirements for Voice and Video Classes
    18. 3.18 QoS Requirements and Design for Data Applications
    19. 3.19 QoS Treatment of Locally Sourced Traffic
    20. 3.20 Management Class
    21. 3.21 Summary
  10. Chapter 4. Carrier CE Services in Cisco IP NGN Networks
    1. 4.1 Overview
    2. 4.2 Customer Requirements
    3. 4.3 Challenges Faced by Customers
    4. 4.4 Managed and Unmanaged CE Services
    5. 4.5 Guidelines for Carriers Deploying Managed CE Services
    6. 4.6 Sample Carrier Service Offerings
    7. 4.7 Summary
  11. Chapter 5. Quality of Service for IP Mobile Networks
    1. 5.1 Overview
    2. 5.2 The First-Generation Mobile Network
    3. 5.3 The Second-Generation Mobile Network
    4. 5.4 The 2.5G Mobile Network
    5. 5.5 The Third-Generation Mobile Vision
    6. 5.6 The Evolution Toward 3G
    7. 5.7 Third-Generation Evolution for GSM
    8. 5.8 Converged NGN Infrastructure for Mobile Transport
    9. 5.9 Third-Generation Release 99 Overview
    10. 5.10 Third-Generation Release 99 Convergence Over IP/MPLS
    11. 5.11 Third-Generation Release 4 Overview
    12. 5.12 Third-Generation Release 4 Convergence Over IP/MPLS
    13. 5.13 Third-Generation Release 5/6 Overview
    14. 5.14 Third-Generation Release 5/6 Convergence Over IP/MPLS
    15. 5.15 Mobile Network RAN Access
    16. 5.16 IPv6 in 3G Networks
    17. 5.17 3GPP Specifications for IPv6
    18. 5.18 Overview of QoS and the 3GPP Standards
    19. 5.19 QoS Concept and Architecture (3GPP TS 23.107)
    20. 5.20 3G Traffic Classes
    21. 5.21 Bearer Service Attributes
    22. 5.22 Mobile Network Protocol Stacks
    23. 5.23 Packet-Switched Domain Network Protocol Stacks
    24. 5.24 GSM 2.5G GPRS Protocol Stacks
    25. 5.25 3G Release 99 and Release 4 GPRS Protocol Stacks
    26. 5.26 3G Release 5 GPRS Protocol Stacks
    27. 5.27 Circuit-Switched Domain Network Protocol Stacks
    28. 5.28 Mobile Network Transport Framework
    29. 5.29 Quality-of-Service Framework
    30. 5.30 QoS Traffic Management for Mobile
    31. 5.31 Quality-of-Service Mapping for 2.5G and 3G Release 99
    32. 5.32 Quality-of-Service Mapping for 3G Release 4
    33. 5.33 Quality-of-Service Mapping for 3G Release 5
    34. 5.34 Summary
  12. Chapter 6. QoS Service Assurance
    1. 6.1 Overview
    2. 6.2 Revisiting Service-Level Agreements
    3. 6.3 Calculating Delay
    4. 6.4 Calculating Jitter
    5. 6.5 Calculating Packet Loss
    6. 6.6 The Need for Performance Management
    7. 6.7 Performance Management Tools and Software
    8. 6.8 Network Investigations
    9. 6.9 Summary
  13. Chapter 7. Cisco CRS-1, 12000, 7600, and ASR1000 Router Architecture
    1. 7.1 Overview
    2. 7.2 Cisco Carrier Routing System Series Routers
    3. 7.3 Cisco 12000 Series Router
    4. 7.4 Cisco 7600 Series Router
    5. 7.5 Cisco ASR1000 Series Router
    6. 7.6 Summary
  14. Chapter 8. Cisco IOS and IOS-XR Quality-of-Service Implementation for MPLS Layer 3 VPN Services
    1. 8.1 Overview
    2. 8.2 QoS Implementation for MPLS Layer 3 VPN Services
    3. 8.3 Edge QoS Configurations
    4. 8.4 DiffServ Tunneling Modes on IOS-XR
    5. 8.5 Summary
  15. Chapter 9. Cisco IOS and IOS-XR Quality-of-Service Implementation for Carrier Ethernet and Virtual Leased-Line Services
    1. 9.1 Overview
    2. 9.2 Carrier Ethernet Service
    3. 9.3 An Introduction to Ethernet Virtual Circuits
    4. 9.4 EVC Configuration
    5. 9.5 EVC QoS Overview
    6. 9.6 Virtual Leased-Line Service
    7. 9.7 Summary
  16. Chapter 10. Cisco IOS and IOS-XR Quality-of-Service Implementation for IP Internet Services
    1. 10.1 Overview
    2. 10.2 QoS Implementation for IP Internet Services
    3. 10.3 QoS Configurations
    4. 10.4 Summary
  17. Chapter 11. Cisco IOS and IOS-XR Quality-of-Service Implementation for Multicast Services
    1. 11.1 Overview
    2. 11.2 QoS Implementation for Multicast Services
    3. 11.3 Preserving Customer ToS Values
    4. 11.4 Summary
  18. Chapter 12. Proof of Concept for Verifying QoS Behavior in Cisco IP NGN Networks
    1. 12.1 Overview
    2. 12.2 Test Setup
    3. 12.3 Test Procedure Without QoS Enabled
    4. 12.4 Test Procedure with QoS Enabled
    5. 12.5 Stopping and Starting the Streams
    6. 12.6 Summary
  19. Chapter 13. Performance Monitoring and Measurement
    1. 13.1 Overview
    2. 13.2 The Importance of Performance Measurement and Monitoring
    3. 13.3 Performance Measurement Framework
    4. 13.4 Performance Measurement Options
    5. 13.5 Simple Network Management Protocol
    6. 13.6 NetFlow
    7. 13.7 IP Service-Level Agreement
    8. 13.8 IP SLA Monitoring Tools
    9. 13.9 Service Provider Deployment Example
    10. 13.10 Summary
  20. Chapter 14. Summary
    1. 14.1 Introduction
    2. 14.2 The Evolution of IP Routed Networks
    3. 14.3 Compromised Traffic Delivery
    4. 14.4 Future Directions in the Deployment of QoS
    5. 14.5 The IPv6 Flow Label
    6. 14.6 Summary
  21. Index