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End-to-End Qos Network Design : Quality of Service in LANs, WANs, and VPNs

by: Szigeti, Tim; Hattingh, Christina

End-to-End Qos Network Design : Quality of Service in LANs, WANs, and VPNs

by: Szigeti, Tim; Hattingh, Christina

ISBN 13:
9781587051760
ISBN 10:
1587051761
Edition: 1st
Format: Hardcover
Copyright: 11/09/2004
Publisher: Cisco Press
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Summary

Quality of Service (QoS) has already proven itself as the enabling technology for the convergence of voice, video, and data networks. As business needs evolve, so do the demands for QoS. The need to protect critical applications via QoS mechanisms in business networks has escalated over the past few years, primarily due to the increased frequency and sophistication of denial-of-service (DoS) and worm attacks.

Introduction

xxii

Part I Introduction to QoS

(64)

Introduction to QoS

(28)

A Brief Historical Perspective

(2)

QoS Evolution

(2)

User Network Expectations

(1)

End User

(1)

Information Technologies Management

(1)

Understanding QoS

(4)

End-to-End QoS

(1)

All Packets Are (Not) Equal

(1)

The Challenges of Converged Networks

(2)

QoS Models

(3)

IntServ Overview

(1)

DiffServ Overview

(1)

Introduction to the QoS Toolset

(2)

Simplifying QoS

(7)

Modular QoS Command-Line Interface

(1)

QoS Baseline

(1)

Default Behavior

(3)

Cross-Platform Feature Consistency

(1)

Automatic QoS

(2)

If I Have AutoQoS, Why Should I Be Reading This Book?

(3)

The Continuing Evolution of QoS

(1)

Summary

(1)

Further Reading

(3)

General

(1)

IntServ

(1)

DiffServ

(1)

AutoQoS

(2)

QoS Design Overview

(34)

QoS Requirements of VoIP

(6)

Voice (Bearer Traffic)

(5)

Call-Signaling Traffic

(1)

QoS Requirements of Video

(3)

Interactive-Video

(2)

Streaming-Video

(1)

QoS Requirements of Data

(6)

Best-Effort Data

(1)

Bulk Data

(1)

Transactional Data/Interactive Data

(1)

Locally Defined Mission-Critical Data

(2)

DLSw+ Considerations

(1)

QoS Requirements of the Control Plane

(1)

IP Routing

(1)

Network-Management

(1)

Scavenger Class

(1)

DoS and Worm Mitigation Strategy Through Scavenger Class QoS

(4)

Principles of QoS Design

(9)

General QoS Design Principles

(2)

Classification and Marking Principles

(1)

Policing and Markdown Principles

(1)

Queuing and Dropping Principles

(3)

DoS and Worm Mitigation Principles

(1)

Deployment Principles

(1)

Summary

(1)

Further Reading

(3)

Part II QoS Toolset

(220)

Classification and Marking Tools

(34)

Classification Tools

(7)

Modular QoS Command-Line Interface Class Maps

(2)

Network-Based Application Recognition

(4)

Marking Tools

(21)

Class-Based Marking

(1)

Class-Based Policing

(1)

Committed Access Rate

(1)

Policy-Based Routing

(1)

Voice Gateway Packet Marking

(2)

Layer 2 Marking Fields

(5)

Layer 3 Marking Fields

(4)

Translating Layer 2 and Layer 3 Packet Markings

(8)

Summary

(1)

Further Reading

(4)

General

(1)

DiffServ

(1)

L2 Protocol Tunneling

100

(1)

VPN

100

(1)

NBAR

100

(1)

MPLS

100

(1)

IP--ATM/Frame Relay Bundles

101

(1)

Level 2 to Level 3 Packet-Marking Translation

101

(2)

Policing and Shaping Tools

103

(30)

Token Bucket Algorithms

105

(2)

Policers

107

(11)

Policers as Markers

107

(1)

Committed Access Rate

107

(2)

Class-Based Policing

109

(9)

Shapers

118

(10)

Shaping Algorithms

120

(1)

Shaping on ATM and Frame Relay Networks

121

(5)

Generic Traffic Shaping

126

(1)

Class-Based Shaping

126

(2)

Further Reading

128

(5)

DiffServ Policing Standards

128

(1)

Policing

129

(1)

ATM PVC Traffic Parameters

129

(1)

Frame Relay Traffic Shaping

129

(1)

Traffic Shaping

130

(3)

Congestion-Management Tools

133

(26)

Understanding Scheduling and Queuing

134

(2)

Legacy Layer 3 Queuing Mechanisms

136

(3)

Priority Queuing

137

(1)

Custom Queuing

137

(1)

Weighted Fair Queuing

137

(2)

IP RTP Priority Queuing

139

(1)

Currently Recommended Layer 3 Queuing Mechanisms

139

(11)

Class-Based Weighted Fair Queuing

139

(1)

Low-Latency Queuing

140

(10)

Layer 2 Queuing Tools

150

(2)

Frame Relay Dual-FIFO

150

(1)

PVC Interface Priority Queuing

150

(2)

Tx-ring

152

(1)

PAK_priority

153

(1)

Summary

154

(1)

Further Reading

154

(5)

Layer 3 Queuing

154

(1)

Layer 2 Queuing

155

(1)

Tx-ring

156

(1)

PAK_priority

156

(3)

Congestion-Avoidance Tools

159

(10)

Random Early Detection

160

(1)

Weighted Random Early Detection

161

(1)

DSCP-Based Weighted Random Early Detection

162

(1)

Explicit Congestion Notification

163

(3)

Summary

166

(1)

Further Reading

166

(3)

DiffServ Standards Relating to WRED

166

(1)

Cisco IOS WRED Documentation

166

(3)

Link-Specific Tools

169

(26)

Header-Compression Techniques

170

(11)

Related Standards

171

(1)

TCP Header Compression

171

(1)

RTP Header Compression

171

(2)

Compression Formats

173

(1)

Layer 2 Encapsulation Protocol Support

174

(3)

Summary of cRTP Formats and Protocol Encapsulations

177

(1)

Class-Based Header Compression

178

(2)

Advanced Topics on cRTP

180

(1)

Link Fragmentation and Interleaving

181

(9)

Fragment Sizes

183

(1)

Multilink PPP LFI

183

(2)

Frame-Relay Fragmentation

185

(3)

LFI for Frame Relay/ATM Service Interworking

188

(2)

IPSec Prefragmentation

190

(1)

Summary

190

(1)

Further Reading

191

(4)

General

191

(1)

IETF Standards

191

(1)

Frame Relay Forum Standards

191

(1)

Header Compression

192

(1)

Link Fragmentation and Interleaving

192

(3)

Bandwidth Reservation

195

(10)

RSVP Overview

196

(3)

RSVP Service Types

197

(1)

Admission Control

197

(1)

RSVP and LLQ

198

(1)

MPLS Traffic Engineering

199

(1)

Scalability

200

(1)

RSVP-DiffServ Integration

200

(1)

Endpoints and Proxies

201

(1)

Summary

201

(1)

Further Reading

201

(4)

Standards

201

(1)

Cisco IOS Documentation

202

(3)

Call Admission Control (CAC)

205

(18)

CAC Overview

205

(1)

CAC Defined

206

(1)

CAC Tool Categories

207

(2)

Local CAC Tools

208

(1)

Measurement-Based CAC Tools

208

(1)

Resource-Based CAC Tools

208

(1)

CallManager Locations CAC

209

(2)

Gatekeeper CAC

211

(1)

RSVP

212

(6)

Example of VoIP CAC Through RSVP

215

(3)

Summary

218

(1)

Further Reading

218

(5)

General

218

(1)

Cisco IOS Documentation

218

(5)

Catalyst QoS Tools

223

(46)

Generic Catalyst QoS Models

224

(7)

Classification, Marking, and Mapping

224

(3)

Policing and Markdown

227

(1)

Queuing and Dropping

228

(3)

Catalyst 2950

231

(4)

Catalyst 2950 Classification, Marking, and Mapping

232

(2)

Catalyst 2950 Policing and Markdown

234

(1)

Catalyst 2950 Queuing

235

(1)

Catalyst 3550

235

(7)

Catalyst 3550 Classification, Marking, and Mapping

237

(1)

Catalyst 3550 Policing and Markdown

238

(2)

Catalyst 3550 Queuing and Dropping

240

(2)

Catalyst 2970, 3650, and 3750

242

(5)

Catalyst 2970/3560/3750 Classification, Marking, and Mapping

243

(1)

Catalyst 2970/3560/3750 Policing and Markdown

244

(1)

Catalyst 2970/3560/3750 Queuing and Dropping

244

(3)

Catalyst 4500

247

(5)

Catalyst 4500 Classification, Marking, and Mapping

248

(1)

Catalyst 4500 Policing and Markdown

249

(1)

Catalyst 4500 Queuing and Dropping

250

(2)

Catalyst 6500

252

(11)

Catalyst 6500 Classification, Marking, and Mapping

254

(3)

Catalyst 6500 Policing and Markdown

257

(2)

Catalyst 6500 Queuing and Dropping

259

(4)

Summary

263

(3)

Further Reading

266

(3)

WLAN QoS Tools

269

(18)

QoS for Wireless LANs Versus QoS on Wired LANs

270

(1)

Upstream Versus Downstream QoS

271

(1)

IEEE 802.11 DCF

272

(3)

Interframe Spaces

272

(1)

Random Backoffs/Contention Windows

273

(2)

IEEE 802.11e EDCF

275

(4)

QoS Basic Service Set Information Element

278

(1)

IEEE 802.1D Classes of Service

279

(1)

QoS Operation on Cisco APs

280

(1)

Configuring QoS on Cisco APs

281

(3)

Summary

284

(1)

Further Reading

285

(2)

Part III LAN QoS Design

287

(158)

Campus QoS Design

289

(156)

DoS/Worm-Mitigation Strategies

292

(3)

Scavenger-Class QoS Operation

294

(1)

Call-Signaling TCP/UDP Ports in Use

295

(7)

Access-Edge Trust Models

302

(12)

Trusted Endpoint Models

302

(2)

Untrusted Endpoint Models

304

(3)

Conditionally Trusted Endpoint(s) Models

307

(7)

Catalyst 2950 QoS Considerations and Design

314

(11)

Catalyst 2950: Trusted Endpoint Model

314

(1)

Catalyst 2950: Untrusted PC with SoftPhone Model

315

(1)

Catalyst 2950: Untrusted Server Model

315

(4)

Catalyst 2950: Conditionally Trusted IP Phone + PC: Basic Model

319

(3)

Catalyst 2950: Conditionally Trusted IP Phone + PC: Advanced Model

322

(1)

Catalyst 2950: Queuing

322

(3)

Catalyst 3550 QoS Considerations and Design

325

(17)

Catalyst 3550: Trusted Endpoint Model

327

(1)

Catalyst 3550: Untrusted PC with SoftPhone Model

327

(3)

Catalyst 3550: Untrusted Server Model

330

(1)

Catalyst 3550: Conditionally Trusted IP Phone + PC: Basic Model

331

(2)

Catalyst 3550: Conditionally Trusted IP Phone + PC: Advanced Model

333

(3)

Catalyst 3550: Queuing and Dropping

336

(6)

Catalyst 2970/3560/3750 QoS Considerations and Design

342

(15)

Catalyst 2970/3560/3750: Trusted Endpoint Model

343

(1)

Catalyst 2970/3560/3750: Untrusted PC with SoftPhone Model

344

(1)

Catalyst 2970/3560/3750: Untrusted Server Model

345

(1)

Catalyst 2970/3560/3750: Conditionally Trusted IP Phone + PC: Basic Model

346

(2)

Catalyst 2970/3560/3750: Conditionally Trusted IP Phone + PC: Advanced Model

348

(3)

Catalyst 2970/3560/3750: Queuing and Dropping

351

(6)

Catalyst 4500-SupII+/III/IV/V QoS Considerations and Design

357

(15)

Catalyst 4500: Trusted Endpoint Model

359

(1)

Catalyst 4500: Untrusted PC with SoftPhone Model

359

(1)

Catalyst 4500: Untrusted Server Model

360

(2)

Catalyst 4500: Conditionally Trusted IP Phone + PC: Basic Model

362

(2)

Catalyst 4500: Conditionally Trusted IP Phone + PC: Advanced Model

364

(2)

Catalyst 4500: Queuing

366

(6)

Catalyst 6500 QoS Considerations and Design

372

(48)

Catalyst 6500: CatOS Defaults and Recommendations

375

(1)

Catalyst 6500: Trusted Endpoint Model

375

(3)

Catalyst 6500: Untrusted PC with SoftPhone Model

378

(5)

Catalyst 6500: Untrusted Server Model

383

(3)

Catalyst 6500: Conditionally Trusted IP Phone + PC: Basic Model

386

(1)

Catalyst 6500: Conditionally Trusted IP Phone + PC: Advanced Model

387

(4)

Catalyst 6500: Queuing and Dropping

391

(28)

Catalyst 6500: PFC3 Distribution-Layer (Cisco IOS) Per-User Microflow Policing

419

(1)

WAN Aggregator/Branch Router Handoff Considerations

420

(2)

Case Study: Campus QoS Design

422

(18)

Summary

440

(1)

Further Reading

441

(4)

Part IV WAN QoS Design

445

(100)

WAN Aggregator QoS Design

447

(66)

Where Is QoS Needed over the WAN?

447

(1)

WAN Edge QoS Design Considerations

448

(5)

Software QoS

448

(1)

Bandwidth Provisioning for Best-Effort Traffic

449

(1)

Bandwidth Provisioning for Real-Time Traffic

449

(1)

Serialization

450

(1)

IP RTP Header Compression

451

(1)

Tx-ring Tuning

451

(1)

PAK_priority

452

(1)

Link Speeds

452

(1)

Distributed Platform QoS and Consistent QoS Behavior

453

(1)

WAN Edge Classification and Provisioning Models

453

(14)

Slow/Medium Link-Speed QoS Class Models

454

(5)

High Link Speed QoS Class Models

459

(8)

WAN Edge Link-Specific QoS Design

467

(38)

Leased Lines

467

(11)

Frame Relay

478

(10)

ATM

488

(9)

ATM-to-Frame Relay Service Interworking

497

(4)

ISDN

501

(4)

Case Study: WAN Aggregation Router QoS Design

505

(2)

Summary

507

(1)

Further Reading

508

(5)

Branch Router QoS Design

513

(32)

Branch WAN Edge QoS Design

514

(3)

Unidirectional Applications

514

(3)

Branch Router LAN Edge QoS Design

517

(18)

DSCP-to-CoS Remapping

518

(1)

Branch-to-Campus Classification and Marking

519

(7)

NBAR Known-Worm Classification and Policing

526

(9)

Case Study: Branch Router QoS Design

535

(6)

Summary

541

(1)

Further Reading

541

(4)

Part V VPN QoS Design

545

(156)

MPLS VPN QoS Design

547

(88)

Where Is QoS Needed over an MPLS VPN?

548

(2)

Customer Edge QoS Design Considerations

550

(13)

Layer 2 Access (Link-Specific) QoS Design

550

(1)

Service-Provider Service-Level Agreements

551

(1)

Enterprise-to-Service Provider Mapping Models

552

(11)

Provider-Edge QoS Considerations

563

(19)

Service Provider-to-Enterprise Models

563

(3)

MPLS DiffServ Tunneling Modes

566

(16)

Core QoS Considerations

582

(34)

Aggregate Bandwidth Overprovisioning

583

(1)

DiffServ in the Backbone

583

(4)

MPLS Traffic Engineering

587

(29)

Case Study: MPLS VPN QoS Design (CE/PE/P Routers)

616

(16)

Summary

632

(1)

Further Reading

632

(3)

IPSec VPN QoS Design

635

(66)

Site-to-Site V3PN QoS Considerations

637

(21)

IPSec VPN Modes of Operation

637

(3)

Packet Overhead Increases

640

(3)

cRTP and IPSec Incompatibility

643

(1)

Prefragmentation

644

(1)

Bandwidth Provisioning

645

(1)

Logical Topologies

646

(1)

Delay Budget Increases

647

(1)

ToS Byte Preservation

648

(1)

QoS Pre-Classify

649

(2)

Pre-Encryption Queuing

651

(3)

Anti-Replay Implications

654

(3)

Control Plane Provisioning

657

(1)

Site-to-Site V3PN QoS Designs

658

(7)

Headend VPN Edge QoS Options for Site-to-Site V3PNs

665

(1)

Teleworker V3PN QoS Considerations

666

(16)

Teleworker Deployment Models

667

(4)

Broadband-Access Technologies

671

(3)

Bandwidth Provisioning

674

(3)

Asymmetric Links and Unidirectional QoS

677

(1)

Broadband Serialization Mitigation Through TCP Maximum Segment Size Tuning

678

(1)

Split Tunneling

679

(3)

Teleworker V3PN QoS Designs

682

(4)

Case Study: IPSec VPN QoS Design

686

(10)

Summary

696

(1)

Further Reading

697

(4)

Appendix QoS ``At-A-Glance'' Summaries

701

(12)

Index

713

Amazon no longer offers textbook rentals. We do!

End-to-End Qos Network Design : Quality of Service in LANs, WANs, and VPNs

End-to-End Qos Network Design : Quality of Service in LANs, WANs, and VPNs

9781587051760

1587051761

Summary

Author Biography

Table of Contents

Supplemental Materials

Write a Review

Amazon no longer offers textbook rentals. We do!

End-to-End Qos Network Design : Quality of Service in LANs, WANs, and VPNs

End-to-End Qos Network Design : Quality of Service in LANs, WANs, and VPNs

9781587051760

1587051761

Summary

Author Biography

Table of Contents

Supplemental Materials

Write a Review

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