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QoS for IP/MPLS Networks
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.
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.
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
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