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  3. 7210 SAS E OS

Alcatel-Lucent 7210 SAS E OS Quality Of Service Manual

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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
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The information presented is subject to change without notice.
Alcatel-Lucent assumes no responsibility for inaccuracies contained herein.
Copyright 2010 Alcatel-Lucent. All rights reserved.
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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Table of Contents
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.
/