Alcatel-Lucent 7210 SAS E OS Quality Of Service Manual

7210 SAS E OS

Quality of Service Guide

Software Version: 7210 SAS OS 2.0 Rev. 03

September 2010

Document Part Number: 93-0225-03-03

*93-0225-03-03*

This document is protected by copyright. Except as specifically permitted herein, no portion of the provided information can be

reproduced in any form, or by any means, without prior written permission from Alcatel-Lucent.

Alcatel, Lucent, Alcatel-Lucent and the Alcatel-Lucent logo are trademarks of Alcatel-Lucent. All other trademarks are the property of

their respective owners.

The information presented is subject to change without notice.

Alcatel-Lucent assumes no responsibility for inaccuracies contained herein.

7210 SAS E OS Quality of Service Guide Page 3

TABLE OF CONTENTS

Preface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Getting Started

Alcatel-Lucent 7210 SAS-Series Services Configuration Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

QoS Policies

QoS Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

QoS Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

Service and Network QoS Policies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

Network QoS Policies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

Network Queue QoS Policies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

Meter Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

Queue Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32

Service Ingress QoS Policies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37

Access Egress QoS Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41

Buffer Pools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44

Slope Policies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45

Slope Policy Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47

Port Scheduler Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49

CPU Queues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52

Forwarding Classes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52

QoS Policy Entities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55

Configuration Notes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56

Port Level Egress Rate-Limiting

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58

Applications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58

Affect of Port Level Rate-Limiting on Access Uplink Queue Functionality . . . . . . . . . . . . . . . . . . . . . .59

Basic Configurations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60

Modifying Port Level Egress-Rate Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61

Removing Port Level Egress-Rate Command. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62

Default Egress-Rate Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62

Port Level Egress-Rate Command Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63

Configuration Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64

Show Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65

Frame Based Accounting

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68

Affects of Enabling Ingress Frame Based Accounting on Ingress Meter Functionality . . . . . . . . . . . . .68

Affects of Enabling Egress Frame Based Accounting on Access Uplink Queue Functionality . . . . . . .68

Accounting and Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68

Basic Configurations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69

Enabling and Disabling Frame-Based Accounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70

Default Frame-Based-Accounting Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70

Frame Based Accounting Command Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71

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Configuration Commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72

Show Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73

Network QoS Policies

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78

Normal QoS Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79

DSCP Marking CPU Generated Traffic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80

Default DSCP Mapping Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80

Basic Configurations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82

Create a Network QoS Policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82

Default Network Policy Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .85

Service Management Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .88

Deleting QoS Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .88

Remove a Policy from the QoS Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .89

Copying and Overwriting Network Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .89

Editing QoS Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90

Network QoS Policy Command Reference. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91

Network Queue QoS Policies

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .112

Basic Configurations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .113

Create a Network Queue QoS Policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .113

Applying Network Queue Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .115

Ethernet Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .115

Default Network Queue Policy Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .116

Service Management Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .119

Deleting QoS Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .119

Copying and Overwriting QoS Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .120

Editing QoS Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .122

Network Queue QoS Policy Command Reference. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .123

Service Ingress QoS Policies

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .134

Default SAP Ingress Policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .135

SAP Ingress Policy Defaults. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .136

Service Ingress Meter Selection Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .137

Service Ingress QoS Policy Configuration Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .138

Basic Configurations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .139

Create Service Ingress QoS Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .139

Service Ingress QoS Policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .140

Applying Service Ingress Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .160

Service Management Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .161

Deleting QoS Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .161

Remove a QoS Policy from Service SAP(s). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .161

Copying and Overwriting QoS Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .162

Remove a Policy from the QoS Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .163

Editing QoS Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .163

Service SAP QoS Policy Command Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .165

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Access Egress QoS Policies

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .200

Basic Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .200

Create Access Egress QoS Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .200

Access Egress QoS Policy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .200

Modifying Access Egress QoS Queues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .202

Applying Access Egress QoS Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .203

Default Access Egress QoS Policy Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .204

Deleting QoS Policies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .207

Removing a Policy from the QoS Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .207

Access Egress QoS Policy Command Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .209

QoS Port Scheduler Policies

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .222

Configuring Port Scheduler Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .222

Basic Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .223

Creating a QoS Port Scheduler Policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .224

Service Management Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .225

Copying and Overwriting Port Scheduler Policies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .225

Editing QoS Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .227

QoS Port Scheduler Policy Command Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .229

Slope QoS Policies

Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .238

Basic Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .239

Create a Slope QoS Policy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .239

Applying Slope Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .241

Default Slope Policy Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .242

Deleting QoS Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .244

Remove a Policy from the QoS Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .244

Copying and Overwriting QoS Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .245

Editing QoS Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .246

Slope QoS Policy Command Reference. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .247

Standards and Protocol Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .257

Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .259

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7210 SAS E OS Quality of Service Guide Page 7

LIST OF TABLES

Getting Started

Table 1: Configuration Process. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

QoS Policies

Table 2: QoS Policy Types and Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

Table 3: Default Network QoS Policy Egress Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

Table 4: Default Network QoS Policy Dot1p to FC Mapping. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

Table 5: Default Network Queue Policy Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

Table 6: Administrative Rate Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

Table 7: Service Ingress QoS Policy IP Match Criteria. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39

Table 8: Service Ingress QoS Policy MAC Match Criteria . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39

Table 9: MAC Match Ethernet Frame Types. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39

Table 10: MAC Match Criteria Frame Type Dependencies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39

Table 11: Default Service Ingress Policy ID 1 Definition. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40

Table 12: Default Access Egress Policy ID 1 Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42

Table 13: Slope Policy Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47

Table 14: Drop Rate Value to Percent Mapping Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47

Table 15: Minimum and Maximum Bandwidth Meters Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49

Table 16: Forwarding Classes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52

Table 17: Forwarding Class to Queue-ID Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53

Network QoS Policies

Table 18: DSCP/FC Marking. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80

Table 19: Network Policy Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .85

Table 20: Default Network QoS Policy Dot1p to FC Mapping. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .86

Table 21: Show QoS Network Output Fields . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .106

Network Queue QoS Policies

Table 22: Network Queue Policy Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .116

Service Ingress QoS Policies

Table 23: SAP Ingress Policy Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .136

Access Egress QoS Policies

Table 24: Access Egress Default Policy Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .205

QoS Port Scheduler Policies

Slope QoS Policies

Table 25: Slope Policy Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .242

Page 8 7210 SAS E OS Quality of Service Guide

List of Tables

7210 SAS E OS Quality of Service Guide Page 9

LIST OF FIGURES

QoS Policies

Figure 1: 7210 SAS E Traffic Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

Figure 2: Traffic Queuing Model for Forwarding Classes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38

Page 10 7210 SAS E OS Quality of Service Guide

List of Figures

7210 SAS E OS Quality of Service Guide Page 11

Preface

About This Guide

This guide describes the Quality of Service (QoS) provided by the 7210 SAS E OS and presents

examples to configure and implement various protocols and services.

This document is organized into functional chapters and provides concepts and descriptions of the

implementation flow, as well as Command Line Interface (CLI) syntax and command usage.

Audience

This manual is intended for network administrators who are responsible for configuring the 7210

SAS-Series routers. It is assumed that the network administrators have an understanding of

networking principles and configurations. Protocols, standards, and services described in this

manual include the following:

•CLI concepts

• Quality of Service (QoS) policies and profiles

Preface

Page 12 7210 SAS E OS Quality of Service Guide

List of Technical Publications

The 7210 SAS E OS documentation set is composed of the following books:

• 7210 SAS E OS Basic System Configuration Guide

This guide describes basic system configurations and operations.

• 7210 SAS E OS System Management Guide

This guide describes system security and access configurations as well as event

logging and accounting logs.

• 7210 SAS E OS Interface Configuration Guide

This guide describes card, Media Dependent Adapter (MDA), and port provisioning.

• 7210 SAS E OS Router Configuration Guide

This guide describes logical IP routing interfaces and associated attributes such as an

IP address, port, link aggregation group (LAG) as well as IP and MAC-based filtering.

• 7210 SAS E OS Services Guide

This guide describes how to configure service parameters such as customer

information, and user services.

• 7210 SAS E OS OAM and Diagnostic Guide

This guide describes how to configure features such as service mirroring and

Operations, Administration and Management (OAM) tools.

• 7210 SAS E OS Quality of Service Guide

This guide describes how to configure Quality of Service (QoS) policy management.

Preface

7210 SAS E OS Quality of Service Guide Page 13

Technical Support

If you purchased a service agreement for your 7210 SAS device and related products from a

distributor or authorized reseller, contact the technical support staff for that distributor or reseller

for assistance. If you purchased an Alcatel-Lucent service agreement, contact your welcome

center.

Web: http://www1.alcatel-lucent.com/comps/pages/carrier_support.jhtml

Preface

Page 14 7210 SAS E OS Quality of Service Guide

7210 SAS E OS Quality of Service Guide Page 15

Getting Started

In This Chapter

This chapter provides process flow information to configure Quality of Service (QoS) policies and

provision services.

Alcatel-Lucent 7210 SAS-Series Services Configuration

Process

Table 1 lists the tasks necessary to configure and apply QoS policies. This guide is presented in an

overall logical configuration flow. Each section describes a software area and provides CLI syntax

and command usage to configure parameters for a functional area.

Table 1: Configuration Process

Area Task Chapter

Policy configuration Configuring QoS Policies

• Egress Rate Port Level Egress Rate-Limiting on page 57

• Accounting Mode Frame Based Accounting on page 67

• Network Network QoS Policies on page 77

• Network queue Network Queue QoS Policies on page 111

• SAP ingress Service Ingress QoS Policies on page 133

• Access egress Access Egress QoS Policies on page 199

• Port scheduler QoS Port Scheduler Policies on page 221

• Slope Slope QoS Policies on page 237

Getting Started

Page 16 7210 SAS E OS Quality of Service Guide

Reference • List of IEEE, IETF, and

other proprietary entities

Standards and Protocol Support on page 317

Table 1: Configuration Process (Continued)

Area Task Chapter (Continued)

7210 SAS E OS Quality of Service Guide Page 17

QoS Policies

In This Chapter

This chapter provides information about Quality of Service (QoS) policy management.

Topics in this chapter include:

• QoS Overview on page 18

• Service and Network QoS Policies on page 22

→ Port Level Egress Rate-Limiting on page 57

→ Frame Based Accounting on page 67

→ Network QoS Policies on page 23

→ Network Queue QoS Policies on page 26

→ Service Ingress QoS Policies on page 37

→ Access Egress QoS Policies on page 41

→ Meter Parameters on page 28

→ Queue Parameters on page 32

• Slope Policies on page 45

• Port Scheduler Policies on page 49

• QoS Policy Entities on page 55

• Configuration Notes on page 56

QoS Overview

Page 18 7210 SAS E OS Quality of Service Guide

QoS Overview

The 7210 SAS E is designed with QoS mechanisms on both ingress and egress to support multiple

services per physical port. The 7210 SAS E has extensive and flexible capabilities to classify,

police, shape, and mark traffic.

In the Alcatel-Lucent service router’s service model, a service is provisioned on the provider-edge

(PE) equipment. Service data is encapsulated and then sent in a service tunnel to the far-end

Alcatel-Lucent service routerwhere the service data is delivered.

The operational theory of a service tunnel is that the encapsulation of the data between the two

Alcatel Lucent service routers appear like a Layer 2 path to the service data although it is really

traversing an IP or IP/MPLS core. The tunnel from one edge device to the other edge device is

provisioned with an encapsulation and the services are mapped to the tunnel that most

appropriately supports the service needs.

The 7210 SAS supports eight forwarding classes internally named: Network-Control, High-1,

Expedited, High-2, Low-1, Assured, Low-2 and Best-Effort. The forwarding classes are discussed

in more detail in Forwarding Classes on page 52.

7210 SAS devices use QoS policies to control how QoS is handled at distinct points in the service

delivery model within the device. There are different types of QoS policies that cater to the

different QoS needs at each point in the service delivery model. QoS policies are defined in a

global context in the 7210 SAS and only take effect when the policy is applied to a relevant entity.

QoS policies are uniquely identified with a policy ID number or name. Policy ID 1 or Policy ID

“default” is reserved for the default policy which is used if no policy is explicitly applied.

The QoS policies within the 7210 SAS can be divided into three main types:

• QoS policies are used for classification, defining metering and queuing attributes and

marking.

• Slope policies define default buffer allocations and WRED slope definitions.

• Port scheduler policies determine how queues are scheduled.

QoS Policies

7210 SAS E OS Quality of Service Guide Page 19

QoS Policies

7210 SAS E QoS policies are applied on service ingress, access ports, egress and access uplink

ports and define:

• Classification rules for how traffic is mapped to forwarding classes

• Forwarding class association with meters and meter parameters used for policing (rate-

limiting).

• Queuing parameters for shaping and buffer allocation

• QoS marking/interpretation

There are several types of QoS policies:

• Service ingress

• Access egress

• Network (for ingress and egress)

• Network queue (for egress)

• Port scheduler

•Slope

• Defines Dot1p value mapping to forwarding classes

• Defines forwarding class to meter mapping

Service ingress QoS policies are applied to the customer-facing Service Access Points (SAPs).

Traffic that enters through the SAP is classified to map it to a Forwarding Class (FC). Forwarding

class is associated with meters on ingress. The mapping of traffic to meters can be based on

combinations of customer QoS marking (IEEE 802.1p bits), IP and MAC criteria. The

characteristics of the forwarding class meters are defined within the policy as to the number of

forwarding class meters for unicast traffic and the meter characteristics (like CIR, PIR, etc.). Each

of the forwarding classes can be associated with different unicast parameters. A service ingress

QoS policy also defines up to three (3) meters per forwarding class to be used for multipoint traffic

for multipoint services. There can be up to 18 meters in total per Service ingress QOS policies.

In the case of the VPLS, four types of forwarding are supported (which is not to be confused with

forwarding classes); unicast, multicast, broadcast, and unknown. Multicast, broadcast, and

unknown types are flooded to all destinations within the service while the unicast forwarding type

is handled in a point-to-point fashion within the service.

An access egress policy is similar to a SAP egress policy as defined in the 7750 SR, 7450 ESS,

7710 SR series of products. The difference is the point of attachment. An access egress policy is

applied on the physical port as opposed to the logical port (SAP) for SAP egress policy. An access

egress QoS policy maps the traffic egressing out on the customer facing ports into various queues

QoS Overview

Page 20 7210 SAS E OS Quality of Service Guide

and marks the traffic accordingly. The FCs are mapped onto the queues. There are 8 queues at the

port level. FC-to-queue mapping is static and is not configurable. The number of queues are static

and there are always 8 queues at the port level. An access egress policy also defines how to remark

the forwarding class to IEEE 802.1p bits in the customer traffic.

Network QoS policies are applied to access uplink ports. On ingress, the policy applied to an IP

interface maps incoming Dot1p values to forwarding class and profile state for the traffic received

from the core network. On egress, the policy maps forwarding class and profile state to Dot1p

values for traffic to be transmitted into the core network.

Network queue policies are applied on egress to access uplink ports. The policies define the

forwarding class queue characteristics for these entities.

Service ingress, access egress, and network QoS policies are defined with a scope of either

template or exclusive. Template policies can be applied to multiple entities (such as SAPs and

ports) whereas exclusive policies can only be applied to a single entity.

One service ingress QoS policy can be applied to a specific SAP. One access egress QoS policy

can be applied to the access port. One network QoS policy can be applied to a specific port. A

network QoS policy defines both ingress and egress behavior. One network queue policy can be

applied to the access uplink port.

If no QoS policy is explicitly applied to a SAP or port, a default QoS policy is applied.

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