View Larger Image	Santiago Alvarez Cisco Press, Hardcover, Published June 2006, 400 pages, ISBN 1587052334
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Read an excerpt: Chapter 2: MPLS TE Technology Overview       Excerpt provided courtesy of by Cisco Press. Copyright © Pearson Education, Cisco Press. Written permission from the publisher is required for any use of this material.

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• Cisco Press

The comprehensive guide to implementing QoS in multiservice networks using IP/MPLS

• Understand the technology components of implementing QoS in a multiservice network
• Learn how to configure the MPLS QoS functionality in Cisco IOS--configuration details help you deploy QoS in your network
• Design optimal networks with confidence through knowledge of multiple QoS design options
• Understand the market potential of service differentiation using QoS

Quality of Service (QoS) plays a key role in the implementation of multiservice and converged networks. Industry efforts to achieve convergence have generated a need for increased levels of traffic differentiation. An array of QoS requirements need to be met to support distinct applications (e.g. voice, video, and data) and multiple network services (e.g. IP, Ethernet, ATM) on a single converged, multiservice network. Therefore, QoS has become an integral part of an multiservice, converged network and service implementation. QoS for IP/MPLS Networks offers network architects and engineers a single source of information for the design, deployment, and implementation of QoS-enabled services on an MPLS network using Cisco IOS. Readers will gain knowledge of the technology behind MPLS QoS and related technologies and will learn the different design options available to build a multiservice MPLS network. The book covers in detail the behavior and configuration of the rich MPLS QoS functionality in Cisco IOS. It is a solid reference of working configuration examples, but does not intend to be a command reference on the subject.

Table of Contents

Chapter 1 QoS Technology Overview

    IP QoS Architectures

        Integrated Services

        Differentiated Services

MPLS Support for IntServ

MPLS Support for DiffServ

        E-LSP

        L-LSP

    DiffServ Tunneling Models over MPLS

Traffic-Management Mechanisms

    Traffic Classification

    Traffic Marking

    Traffic Policing

    Traffic Shaping

    Congestion Management

    Active Queue Management

    Link Fragmentation and Interleaving

    Header Compression

QoS Signaling

    Resource Reservation Protocol

    Other QoS Signaling Mechanisms

Summary

References

Chapter 2 MPLS TE Technology Overview

MPLS TE Introduction

Basic Operation of MPLS TE

    Link Information Distribution

    Path Computation

    TE LSP Signaling

    Traffic Selection

DiffServ-Aware Traffic Engineering

    Class-Types and TE-Classes

    Bandwidth Constraints

Fast Reroute

    Link Protection

    Node Protection

Summary

References

Chapter 3 Cisco QoS

Cisco QoS Behavioral Model

    Classification Component

    Pre-Queuing Component

    Queuing Component

    Post-Queuing Component

Modular QoS Command-Line Interface

    Hardware Support for the MQC

    Traffic-Management Mechanisms

    Hierarchical Configurations

    Percentage-Based Rates

    Parameter Units

    Processing of Local Traffic

Summary

References

Chapter 4 Cisco MPLS Traffic Engineering

Basic Operation of MPLS TE

    Enabling MPLS TE

    Defining a TE Tunnel Interface

    Link Information Distribution

    Using IS-IS for Link Information Distribution

    Path Computation

    Signaling of TE LSPs

    Traffic Selection

DiffServ-Aware Traffic Engineering (DS-TE)

Fast Reroute (FRR)

Summary

References

Chapter 5 Backbone Infrastructure

Backbone Performance

    Performance Requirements for Different Applications

    Segmentation of Performance Targets

    Factors Affecting Performance Targets

Latency Versus Link Utilization

Reference Network

    Edge Nodes

QoS Design Alternatives

    Best-Effort Backbone

    Best-Effort Backbone with MPLS TE

    DiffServ Backbone

    DiffServ Backbone with MPLS TE

    DiffServ Backbone with DiffServ-Aware Traffic Engineering

    Adding MPLS TE FRR

    What Design Should I Use?

Summary

References

Appendix A Command Reference for Cisco MPLS Traffic Engineering and RSVP

About the Author

Santiago Alvarez, CCIE No. 3621, joined Cisco in 1997 as a member of the Technical Assistance Center. Since 2000, he has contributed as Technical Marketing Engineer within the Cisco IOS Technology Group. He focuses on MPLS and QoS technologies. He has been a regular speaker at Networkers and a periodic contributor to Packet magazine. Santiago holds a BS in Computer Science from EAFIT University, an MS in Computer Science from Colorado State University, and an MS in Telecommunications from the University of Colorado at Boulder.

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