Alcatel-Lucent 7210 SAS E OS User manual

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Software
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User manual

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7210 SAS D, E OS
Quality of Service Guide
Software Version: 7210 SAS OS 6.0 Rev.02
August 2013
Document Part Number: 93-0488-01-02
93-0488-01-02
This document is protected by copyright. Except as specifically permitted herein, no portion of the provided information can be
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The information presented is subject to change without notice.
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Copyright 2013 Alcatel-Lucent. All rights reserved.
7210 SAS D, E OS Quality of Service Guide Page 3
TABLE OF CONTENTS
Preface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Getting Started
Alcatel-Lucent 7210 SAS-Series Services Configuration Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
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
QoS Overrides . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Queue Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Service Ingress QoS Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40
Hierarchical Ingress Policing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
Access Egress QoS Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
Buffer Pools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
Slope Policies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50
Slope Policy Parameters (for 7210 SAS-E devices) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56
Slope Policy Parameters (for 7210 SAS D devices) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
Port Scheduler Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
CPU Queues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
Egress Port Rate Limiting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62
Forwarding Classes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63
QoS Policy Entities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65
Configuration Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66
Port Level Egress Rate-Limiting
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68
Effect of Port Level Rate-Limiting on Access Uplink Queue Functionality . . . . . . . . . . . . . . . . . . . . . .69
Basic Configurations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70
Modifying Port Level Egress-Rate Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
Removing Port Level Egress-Rate Command. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72
Default Egress-Rate Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72
Frame Based Accounting
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74
Effects of Enabling Ingress Frame Based Accounting on Ingress Meter Functionality . . . . . . . . . .74
Effects of Enabling Egress Frame Based Accounting on Access Uplink Queue Functionality . . . .74
Accounting and Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74
Basic Configurations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75
Enabling and Disabling Frame-Based Accounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76
Default Frame-Based-Accounting Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76
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Table of Contents
Port Level Egress-Rate Command Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77
Frame Based Accounting Command Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81
Configuration Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82
Show Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .83
Network QoS Policies
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90
Normal QoS Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91
DSCP Marking CPU Generated Traffic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .92
Default DSCP Mapping Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93
Basic Configurations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .94
Create a Network QoS Policy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .94
Default Network Policy Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .97
Service Management Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .101
Deleting QoS Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .101
Remove a Policy from the QoS Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .102
Copying and Overwriting Network Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .102
Editing QoS Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .103
Resource Allocation for Network QoS policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .104
Network QoS Policies Resource Usage Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .106
Network QoS Policy Command Reference. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .115
Network Queue QoS Policies
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .140
Basic Configurations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .141
Create a Network Queue QoS Policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .141
Applying Network Queue Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .143
Ethernet Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .143
Default Network Queue Policy Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .144
Service Management Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .148
Deleting QoS Policies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .148
Copying and Overwriting QoS Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .149
Editing QoS Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .151
Network Queue QoS Policy Command Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .153
Service Ingress QoS Policies
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .164
Default SAP Ingress Policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .165
SAP Ingress Policy Defaults. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .166
Use of Index file by SAP QoS Ingress . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .166
Service Ingress Meter Selection Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .169
Service Ingress QoS Policy Configuration Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .171
Resource Allocation for Service Ingress QoS policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .172
Computation of resources used per SAP ingress policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .175
Basic Configurations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .178
Create Service Ingress QoS Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .178
Service Ingress QoS Policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .179
Applying Service Ingress Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .206
Service Management Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .208
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Table of Contents
Deleting QoS Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .208
Remove a QoS Policy from Service SAP(s). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .208
Copying and Overwriting QoS Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .209
Remove a Policy from the QoS Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .210
Editing QoS Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .210
Service SAP QoS Policy Command Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .211
Access Egress QoS Policies
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .246
Basic Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .246
Create Access Egress QoS Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .246
Access Egress QoS Policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .246
Modifying Access Egress QoS Queues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .248
Applying Access Egress QoS Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .249
Default Access Egress QoS Policy Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .250
Deleting QoS Policies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .253
Removing a Policy from the QoS Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .253
Access Egress QoS Policy Command Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .255
QoS Port Scheduler Policies
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .272
Configuring Port Scheduler Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .272
Basic Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .273
Creating a QoS Port Scheduler Policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .274
Service Management Tasks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .275
Copying and Overwriting Port Scheduler Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .275
Editing QoS Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .277
QoS Port Scheduler Policy Command Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .279
Slope QoS Policies
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .290
Configuration Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .291
WRED Slope enhancement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .291
Basic Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .292
Create a Slope QoS Policy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .292
Applying Slope Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .295
Default Slope Policy Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .296
Default Slope Policy Values (for 7210 SAS-D devices). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .298
Deleting QoS Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .302
Copying and Overwriting QoS Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .303
Editing QoS Policies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .308
Slope QoS Policy Command Reference. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .309
Standards and Protocol Support (7210 SAS D) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .331
Standards and Protocol Support (7210 SAS E). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .335
Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .337
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7210 SAS D, E OS Quality of Service Guide Page 7
LIST OF TABLES
Getting Started
Table 1: Configuration Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
QoS Policies
Table 2: QoS Policy Types and Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Table 3: QoS Policy Types and Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Table 4: Default Network QoS Policy Egress Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Table 5: Default Network QoS Policy Dot1p to FC Mapping. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Table 6: Default Network Queue Policy Definition.(For 7210 SAS E and 7210 SAS D devices) . . . . . . .26
Table 7: Administrative Rate Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Table 8: Supported Hardware Rates and CIR/PIR Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Table 9: Supported Hardware Rates and CIR/PIR Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Table 10: in 7210 SAS-D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Table 11: Service Ingress QoS Policy IP Match Criteria in 7210 SAS-E . . . . . . . . . . . . . . . . . . . . . . . . . .42
Table 12: Service Ingress QoS Policy IPv6 Match Criteria for 7210 SAS-D and 7210 SAS-E . . . . . . . . . .42
Table 13: Service Ingress QoS Policy MAC Match Criteria for 7210 SAS-E and 7210 SAS-D . . . . . . . . .42
Table 14: MAC Match Ethernet Frame Types. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Table 15: MAC Match Criteria Frame Type Dependencies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Table 16: Default Service Ingress Policy ID 1 Definition. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
Table 17: Default Access Egress Policy ID 1 Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
Table 18: TAF Impact on Shared Buffer Average Utilization Calculation . . . . . . . . . . . . . . . . . . . . . . . . . .54
Table 19: Default Slope Policy Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56
Table 20: Drop Rate Value to Percent Mapping Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
Table 21: Default Slope Policy Definition (for 7210 SAS D) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58
Table 22: Minimum and Maximum Bandwidth Meters Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
Table 23: Forwarding Classes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63
Table 24: Forwarding Class to Queue-ID Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64
Port Level Egress Rate-Limiting
Frame Based Accounting
Network QoS Policies
Table 25: DSCP and Dot1p Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .92
Table 26: Network Policy Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .97
Table 27: Default Network QoS Policy Dot1p to FC Mapping. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .98
Table 28: Show QoS Network Output Fields . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .135
Network Queue QoS Policies
Table 29: Network Queue Policy Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .144
Table 30: Network Queue Labels and Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .161
Service Ingress QoS Policies
Table 31: SAP Ingress Policy Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .166
Page 8 7210 SAS D, E OS Quality of Service Guide
List of Tables
Access Egress QoS Policies
Table 32: Access Egress Default Policy Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250
Table 33: Marking the packets egressing the port (If and Then) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263
QoS Port Scheduler Policies
Slope QoS Policies
Table 34: Slope behavior table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 291
Table 35: Slope Policy Defaults (for 7210 SAS E) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .296
Table 36: Slope Policy Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 298
Table 37: Show QoS Slope Policy Output Fields . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 327
Table 38: Show QoS Slope Policy Output Fields . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 329
7210 SAS D, E OS Quality of Service Guide Page 9
LIST OF FIGURES
QoS Policies
Figure 1: 7210 SAS D, E Traffic Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Figure 2: Traffic Queuing Model for Forwarding Classes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
Figure 3: RED Slope Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
Port Level Egress Rate-Limiting
Frame Based Accounting
Network QoS Policies
Network Queue QoS Policies
Service Ingress QoS Policies
Access Egress QoS Policies
QoS Port Scheduler Policies
Slope QoS Policies
Page 10 7210 SAS D, E OS Quality of Service Guide
List of Figures
7210 SAS D, 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 D and 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.
This guide provides information to configure QoS policies on both 7210 SAS E and 7210 SAS D
devices. Unless otherwise noted, the QoS policies are applicable to both 7210 SAS E and 7210
SAS D devices.
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 D, E OS Quality of Service Guide
List of Technical Publications
The 7210-SAS D and E OS documentation set is composed of the following books:
7210-SAS D and E OS Basic System Configuration Guide
This guide describes basic system configurations and operations.
7210-SAS D and E OS System Management Guide
This guide describes system security and access configurations as well as event
logging and accounting logs.
7210-SAS D and E OS Interface Configuration Guide
This guide describes card, Media Dependent Adapter (MDA), and port provisioning.
7210-SAS D and 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 D and E OS Services Guide
This guide describes how to configure service parameters such as customer
information, and user services.
7210-SAS D and 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 D and E OSQuality of Service Guide
This guide describes how to configure Quality of Service (QoS) policy management.
Preface
7210 SAS D, 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 D, E OS Quality of Service Guide
7210 SAS D, 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
Page 16 7210 SAS D, E OS Quality of Service Guide
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 67
• Accounting Mode Frame Based Accounting on page 73
• Network Network QoS Policies on page 89
• Network queue Network Queue QoS Policies on page 139
• SAP ingress Service Ingress QoS Policies on page 163
• Access egress Access Egress QoS Policies on page 245
• Port scheduler QoS Port Scheduler Policies on page 271
• Slope Slope QoS Policies on page 289
Reference • List of IEEE, IETF, and
other proprietary entities
Standards and Protocol Support on page 397
7210 SAS D, 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 67
Frame Based Accounting on page 73
Network QoS Policies on page 23
Network Queue QoS Policies on page 26
Service Ingress QoS Policies on page 40
Access Egress QoS Policies on page 45
Queue Parameters on page 35
Slope Policies on page 50
Port Scheduler Policies on page 59
QoS Policy Entities on page 65
Configuration Notes on page 66
QoS Overview
Page 18 7210 SAS D, E OS Quality of Service Guide
QoS Overview
The 7210 SAS D, E are designed with QoS mechanisms on both ingress and egress to support
multiple services per physical port. The 7210 SAS D, E have extensive and flexible capabilities to
classify, police, shape, and mark traffic.
In the Alcatel-Lucent service routers 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 router where 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 63.
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 D, E OS Quality of Service Guide Page 19
QoS Policies
7210 SAS D, 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
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 32 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
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.
QoS Overview
Page 20 7210 SAS D, E OS Quality of Service Guide
Network QoS policies are applied to access uplink ports. On ingress, the policy applied to
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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Alcatel-Lucent 7210 SAS E OS User manual

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