How it Works
Nokia
Loading...
7210 SAS OS
Table of contents
Loading...

Nokia 7210 SAS OS, 7210 SAS-M, 7210 SAS-Sx, 7210 SAS-T, 7210 SAS-Mxp Service Manual

...
Download
7210 SAS OS Quality of Service Guide7210 SAS-M7210 SAS-T7210 SAS­Mxp7210 SAS-S7210 SAS-SxRelease 9.0.R8
7210 SERVICE ACCESS SWITCH
7210 SAS OS Quality of Service Guide 7210 SAS-M 7210 SAS-T 7210 SAS-Mxp 7210 SAS-S 7210 SAS-Sx Release 9.0.R8
3HE11482AAAHTQZZA
Issue: 01
September 2017
Nokia — Proprietary and confidential. Use pursuant to applicable agreements.
Nokia is a registered trademark of Nokia Corporation. Other products and company names mentioned herein may be trademarks or tradenames of their respective owners.
The information presented is subject to change without notice. No responsibility is assumed for inaccuracies contained herein.
© 2013, 2016, 2017 Nokia.
Contains proprietary/trade secret information which is the property of Nokia and must not be made available to, or copied or used by anyone outside Nokia without its written authorization. Not to be used or disclosed except in accordance with applicable agreements.

Table of Contents

Preface................................................................................................................................................... 15
About This Guide................................................................................................................................................15
Audience .......................................................................................................................................................16
List of Technical Publications ........................................................................................................................16
Technical Support .........................................................................................................................................17
Getting Started...................................................................................................................................... 19
In This Chapter ...................................................................................................................................................19
Alcatel-Lucent 7210 SAS-Series Services Configuration Process .....................................................................19
QoS Policies ......................................................................................................................................... 21
In This Chapter ..................................................................................................................................................21
QoS Overview ...................................................................................................................................................21
Overview of QoS Policies on 7210 SAS-M and 7210 SAS-T in Access-uplink mode ...................................22
Overview of QoS Policies on 7210 SAS-M and 7210 SAS-T in network mode ............................................25
Overview of QoS Policies on 7210 SAS-Mxp in network mode ....................................................................28
Overview of QoS Policies on 7210 SAS-Sx/S 1/10GE and 7210 SAS-Sx 10/100GE ...................................32
Service and Network QoS Policies .....................................................................................................................36
Network QoS Policies in Network Mode.............................................................................................................37
'ip-interface' type Network QoS policy ..........................................................................................................38
“port” Type Network QoS Policy ....................................................................................................................40
Network QoS Policies for Access-uplink Mode ..................................................................................................42
Network Queue policies in Network mode .........................................................................................................44
Network Queue policies in Access-uplink mode ................................................................................................46
......................................................................................................................................................................47
Meter/Policer Parameters...................................................................................................................................48
Meter ID.........................................................................................................................................................48
Committed Information Rate for Meters ........................................................................................................49
Peak Information Rate for Meters .................................................................................................................49
Adaptation Rule for Meters............................................................................................................................50
Committed Burst Size (For Meter/Policers) ...................................................................................................51
Maximum Burst Size (For Meter/Policers).....................................................................................................51
Meter Counters..............................................................................................................................................52
Meter Modes .................................................................................................................................................52
Color Aware Policing ..........................................................................................................................................52
QoS Overrides for Meters/Policers .....................................................................................................................53
Configuration guidelines of QoS Override .....................................................................................................54
Configuring Meter Override parameters .............................................................................................................54
Queue Parameters .............................................................................................................................................55
Queue ID ......................................................................................................................................................55
Committed Information Rate for Queues.......................................................................................................56
Peak Information Rate for Queues ................................................................................................................57
Adaptation Rule for Queues ..........................................................................................................................57
Committed Burst Size (CBS) and the Maximum Burst Size (MBS) for Queues ............................................59
Service Ingress QoS Policies .............................................................................................................................61
Hierarchical Ingress Policing ..............................................................................................................................67
7210 SAS-M, T, Mxp, Sx, S OS Quality of Service Guide 3
Table of Contents
Service Egress QoS Policies on 7210 SAS-Mxp................................................................................................67
Access Egress QoS Policies on 7210 SAS-M, 7210 SAS-T, 7210 SAS-Sx/S 1/10GE, and 7210 SAS-Sx 10/100GE 71
Access Egress QoS Policies on 7210 SAS-Mxp ................................................................................................75
Access Egress QoS policy for SAP-based queuing mode on 7210 SAS-Mxp ...................................................75
Access Egress QoS policy for Port-based Queuing mode on 7210 SAS-Mxp ...................................................76
Buffer Pools on 7210 SAS-M and 7210 SAS-T ..................................................................................................78
Buffer pool allocation - Per port MBS pool (7210 SAS-M and 7210 SAS-T) ................................................78
Buffer pool allocation - Per Node MBS pool on 7210 SAS-T .......................................................................79
Decommissioning Ports with Per port MBS pool ................................................................................................80
Using decommission command for Buffer Allocation on 7210 SAS-M and 7210 SAS-T devices............80
Configuration guidelines for use of ‘Decommission’ commands on 7210 SAS-M and 7210 SAS-T devices
81
Buffer Pools on 7210 SAS-Sx/S 1/10GE and 7210 SAS-Sx 10/100GE devices................................................82
Buffer Pools on 7210 SAS-Mxp..........................................................................................................................83
Slope Policies for 7210 SAS-M, 7210 SAS-T, 7210 SAS-Sx/S 1/10GE, and 7210 SAS-Sx 10/100GE devices84
RED Slopes In Network and Access-uplink Mode ........................................................................................85
Tuning the Shared Buffer Utilization Calculation...........................................................................................88
Slope Policy Parameters ...............................................................................................................................90
Queue Management Policies for 7210 SAS-Mxp ...............................................................................................93
Queue Management Policy Parameters .......................................................................................................93
Port Scheduler Policies for 7210 SAS-M, 7210 SAS-T, 7210 SAS-Sx/S 1/10GE, and 7210 SAS- Sx 10/100GE94
Scheduler Modes ..........................................................................................................................................95
Schedulers on 7210 SAS-Mxp ...........................................................................................................................97
CPU Queues ......................................................................................................................................................97
Remark Policy on 7210 SAS-T, 7210 SAS-Sx/S 1/10GE, 7210 SAS-Sx 10/100GE, and 7210 SAS-Mxp (Network
mode) .............................................................................................................................
Egress Port Rate Limiting...................................................................................................................................98
Forwarding Classes............................................................................................................................................99
Forwarding-Class To Queue-ID Map on 7210 SAS-M, 7210 SAS-T, and 7210 SAS-Mxp .........................101
Forwarding-Class To Queue-ID Map on 7210 SAS-Sx/S 1/10GE and 7210 SAS-Sx 10/100GE ...............101
QoS Policy for Hybrid port on 7210 SAS-M and 7210 SAS-T ..........................................................................103
QoS Policy for Hybrid port on 7210 SAS-Sx/S 1/10GE and 7210 SAS-Sx 10/100GE .....................................103
QoS Policy for Hybrid port on 7210 SAS-Mxp ..................................................................................................104
QoS Policy Entities ...........................................................................................................................................105
Configuration Notes.....................................................................................................................................106
....................................98
Discard Eligibility Indicator (DEI) based Classification and Marking............................................ 107
In This Section..................................................................................................................................................107
DEI based Classification ..................................................................................................................................107
DEI based marking ..........................................................................................................................................109
Configuration Guidelines .................................................................................................................................109
Port Level Egress Rate-Limiting ....................................................................................................... 111
In This Section..................................................................................................................................................111
Overview...........................................................................................................................................................111
Applications .................................................................................................................................................111
Effect of Port Level Rate-Limiting on Network Queue Functionality............................................................112
Basic Configurations.........................................................................................................................................112
4 7210 SAS-M, T, Mxp, Sx, S OS Quality of Service Guide
Table of Contents
Modifying Port Level Egress-Rate Command .............................................................................................113
Removing Port Level Egress-Rate Command ............................................................................................113
Default Egress-Rate Values ...................................................................................................................114
Port Level Egress-Rate Command Reference .................................................................................................115
Command Hierarchies.................................................................................................................................115
Configuration Commands .....................................................................................................................115
Show Commands...................................................................................................................................115
Command Descriptions ...............................................................................................................................116
Configuration Commands ......................................................................................................................116
Show Commands...................................................................................................................................116
Frame Based Accounting .................................................................................................................. 119
In This Section..................................................................................................................................................119
Overview...........................................................................................................................................................119
Frame Based Accounting ............................................................................................................................119
Effects of Enabling Ingress Frame Based Accounting on Ingress Meter Functionality ..............................120
Effects of Enabling Egress Frame Based Accounting on Network Queue Functionality ............................120
Accounting and Statistics ...........................................................................................................................120
Basic Configurations ........................................................................................................................................120
Enabling and Disabling Frame-Based Accounting .....................................................................................121
Frame Based Accounting Command Reference ..............................................................................................123
Command Hierarchies.................................................................................................................................123
Configuration Commands .....................................................................................................................123
Command Descriptions ...............................................................................................................................124
Configuration Commands ......................................................................................................................124
Network QoS Policies ........................................................................................................................ 125
In This Section..................................................................................................................................................125
Overview...........................................................................................................................................................125
Overview of Network QoS policies in Network mode ..................................................................................125
Overview of Network QoS policies in Access-uplink mode .........................................................................126
Network QoS Policy in Network Mode..............................................................................................................126
Network Qos Policy (ip-interface type) Functionality ...................................................................................127
Basic Configurations ...................................................................................................................................128
Create a Network QoS Policy (type - IP interface) for Network mode.........................................................128
Example for network qos policy of type ip-interface ...............................................................................129
Configuring Network policy (type - port) for Network Mode.........................................................................131
Default Network Policy Values available in Network mode .........................................................................133
Resource Allocation for Network QoS policy ..............................................................................................137
Network QoS Policies Resource Usage Examples .....................................................................................140
Network QoS Policy in Access Uplink Mode ....................................................................................................148
Basic Configurations ...................................................................................................................................149
Configuring Network policy for Access-uplink Mode ...................................................................................150
Default Network Policy Values available in Access-uplink mode ................................................................152
DSCP Marking CPU Generated Traffic ............................................................................................................156
Default DSCP Mapping Table .....................................................................................................................157
Service Management Tasks .............................................................................................................................158
Deleting QoS Policies..................................................................................................................................158
Remove a Policy from the QoS Configuration.............................................................................................159
7210 SAS-M, T, Mxp, Sx, S OS Quality of Service Guide 5
Table of Contents
Copying and Overwriting Network Policies .................................................................................................159
Editing QoS Policies....................................................................................................................................160
Network QoS Policy Command Reference ......................................................................................................161
Command Hierarchies.................................................................................................................................161
Configuration Commands ......................................................................................................................161
Configuration Commands (for 7210 SAS-M network mode operation)..................................................161
Configuration Commands in 7210 SAS-T and 7210 SAS-Sx/S 1/10GE configured in network mode...162
Configuration Commands for 7210 SAS-Mxp ........................................................................................163
Configuration Commands in Access-uplink Mode .................................................................................164
Operational Commands (for network mode or access-uplink mode of operation) .................................165
Show Commands (for network mode or access-uplink mode of operation)...........................................165
Command Descriptions ...............................................................................................................................166
Configuration Commands ......................................................................................................................166
Operational Commands .........................................................................................................................166
Show Commands...................................................................................................................................195
Network Queue QoS Policies ............................................................................................................ 209
In This Section..................................................................................................................................................209
Overview...........................................................................................................................................................209
Basic Configurations.........................................................................................................................................210
Create a Network Queue QoS Policy .........................................................................................................210
Applying Network Queue Policies ...............................................................................................................211
Applying Network Queue configuration in Network mode .....................................................................212
Applying Network Queue configuration in Access-Uplink mode ...........................................................212
Default Network Queue Policy Values .............................................................................................................213
Service Management Tasks .............................................................................................................................216
Deleting Network Queue QoS Policies........................................................................................................216
Copying and Overwriting Network Queue QoS Policies .............................................................................216
Editing Network Queue QoS Policies ..........................................................................................................218
Network Queue QoS Policy Command Reference...........................................................................................219
Command Hierarchies.................................................................................................................................219
Configuration Commands for 7210 SAS-M and 7210 SAS-T (network mode and access-uplink mode) 219
Configuration Commands for 7210 SAS-Mxp ........................................................................................219
Configuration Commands for 7210 SAS-Sx/S 1/10GE and 7210 SAS-Sx 10/100GE ...........................220
Operational Commands .........................................................................................................................220
Show Commands...................................................................................................................................220
Command Descriptions ...............................................................................................................................221
Configuration Commands ......................................................................................................................221
Operational Commands .........................................................................................................................221
Network Queue QoS Policy Commands ................................................................................................222
Network Queue QoS Policy Queue Commands ....................................................................................223
Show Commands...................................................................................................................................226
Service Ingress QoS Policies ............................................................................................................ 229
In This Section..................................................................................................................................................229
Overview...........................................................................................................................................................229
Default SAP Ingress Policy ...................................................................................................................230
Resource Allocation for SAP ingress policy ................................................................................................231
Use of Index file by SAP QoS Ingress policy ........................................................................................231
6 7210 SAS-M, T, Mxp, Sx, S OS Quality of Service Guide
Table of Contents
Use of the keyword “multipoint” for default meter “11” ...........................................................................231
Service Ingress Meter Selection Rules ..................................................................................................234
Service Ingress Policy Configuration Considerations ...........................................................................236
Resource Allocation for Service Ingress QoS policies ...............................................................................237
Computation of resources used per SAP ingress policy .......................................................................240
Basic Configurations.........................................................................................................................................244
Create Service Ingress QoS Policies ..........................................................................................................244
Service Ingress QoS Policy .........................................................................................................................244
Service Ingress QoS Meter ...................................................................................................................245
Service Ingress IP Match Criteria ..........................................................................................................246
Service Ingress MAC Match Criteria .....................................................................................................247
Examples for Computation of resources required for Service ingress QoS policy.................................248
Applying Service Ingress Policies ..............................................................................................................284
Epipe ......................................................................................................................................................284
VPLS ......................................................................................................................................................284
VPRN .....................................................................................................................................................285
IES ........................................................................................................................................................285
Service Management Tasks .............................................................................................................................286
Deleting QoS Policies..................................................................................................................................286
Remove a QoS Policy from Service SAP(s) ..........................................................................................287
Copying and Overwriting QoS Policies .......................................................................................................287
Remove a Policy from the QoS Configuration.............................................................................................288
Editing QoS Policies....................................................................................................................................288
Service SAP QoS Policy Command Reference ...............................................................................................289
Command Hierarchy ...................................................................................................................................289
Service Ingress QoS Policy Commands ...............................................................................................289
Operational Commands .........................................................................................................................291
Show Commands...................................................................................................................................291
Command Descriptions ...............................................................................................................................292
Configuration Commands ......................................................................................................................292
Operational Commands .........................................................................................................................292
Show Commands...................................................................................................................................320
Access Egress QoS Policies on 7210 SAS-M, 7210 SAS-T, 7210 SAS-Sx/S 1/10GE, and 7210 SAS-
Sx 10/100GE ........................................................................................................................................ 331
In This Section..................................................................................................................................................331
Overview...........................................................................................................................................................332
Basic Configurations ...................................................................................................................................332
Modifying Access Egress QoS Queues .................................................................................................334
Applying Access Egress QoS Policies ...................................................................................................334
Default Access Egress QoS Policy Values ............................................................................................335
Deleting QoS Policies ............................................................................................................................337
Removing a Policy from the QoS Configuration.....................................................................................337
Access Egress QoS Policy Command Reference ............................................................................................339
Command Hierarchies.................................................................................................................................339
Configuration Commands for 7210 SAS-M (Access-uplink mode) .......................................................339
Configuration Commands for 7210 SAS-M network mode ...................................................................340
Configuration Commands for 7210 SAS-T (Access-uplink mode) ........................................................340
7210 SAS-M, T, Mxp, Sx, S OS Quality of Service Guide 7
Table of Contents
Configuration Commands for 7210 SAS-T, 7210 SAS-Sx/S 1/10GE, and 7210 SAS-Sx 10/100GE network
mode .....................................................................................................................................................341
Operational Commands .........................................................................................................................341
Show Commands...................................................................................................................................341
Configuration Commands............................................................................................................................342
Generic Commands ...............................................................................................................................342
Access Egress Queue QoS Policy Commands .....................................................................................351
Access Egress QoS Policies for 7210 SAS-Mxp ............................................................................. 359
In This Section..................................................................................................................................................359
Overview...........................................................................................................................................................359
Access Egress QoS policy for SAP-based queuing mode on 7210 SAS-Mxp ............................................360
Access Egress QoS policy for Port-based Queuing mode on 7210 SAS-Mxp............................................361
Basic Configurations ...................................................................................................................................363
Editing QoS Policies...............................................................................................................................363
Deleting QoS Policies ............................................................................................................................363
Removing a Policy from the QoS Configuration.....................................................................................364
Access Egress QoS Policy Command Reference ............................................................................................365
Command Hierarchies.................................................................................................................................365
Configuration Commands for 7210 SAS-Mxp ........................................................................................365
Show Commands...................................................................................................................................365
Command Descriptions ...............................................................................................................................366
Service Egress Policies for 7210 SAS-Mxp...................................................................................... 379
In This Section..................................................................................................................................................379
Overview...........................................................................................................................................................379
Basic Configurations ...................................................................................................................................379
Create a SAP Egress Policy........................................................................................................................380
Editing QoS Policies....................................................................................................................................381
Service Egress Policy Command Reference....................................................................................................383
Command Hierarchies.................................................................................................................................383
Configuration Commands for 7210 SAS-Mxp ........................................................................................383
Copy Commands ...................................................................................................................................383
Show Commands...................................................................................................................................383
Command Descriptions ...............................................................................................................................384
Configuration Commands ......................................................................................................................384
QoS Port Scheduler Policies for 7210 SAS-M and 7210 SAS-T ..................................................... 395
In This Section..................................................................................................................................................395
Overview ..........................................................................................................................................................395
Configuring Port Scheduler Policies............................................................................................................395
Basic Configurations ...................................................................................................................................396
Creating a QoS Port Scheduler Policy ...................................................................................................396
Service Management Tasks .............................................................................................................................396
Copying and Overwriting Scheduler Policies ..............................................................................................397
Editing QoS Policies....................................................................................................................................398
Schedulers on 7210 SAS-Sx/S 1/10GE and 7210 SAS-Sx 10/100GE.............................................. 399
In this section....................................................................................................................................................399
8 7210 SAS-M, T, Mxp, Sx, S OS Quality of Service Guide
Table of Contents
QoS Port Scheduler Policy Command Reference ............................................................................................401
Command Hierarchies.................................................................................................................................401
Port Scheduler Policy Configuration Commands ...................................................................................401
Operational Commands .........................................................................................................................401
Show Commands...................................................................................................................................401
Command Descriptions ...............................................................................................................................402
Configuration Commands ......................................................................................................................402
Operational Commands .........................................................................................................................402
Port Scheduler Policy Commands .........................................................................................................403
Show Commands...................................................................................................................................405
Schedulers on 7210 SAS-Mxp ........................................................................................................... 409
In This Section..................................................................................................................................................409
Overview ..........................................................................................................................................................409
Scheduling with SAP based queues on Access ports .....................................................................................410
Scheduling on Network Ports ...........................................................................................................................412
Scheduling on Hybrid port with SAP based egress queues .............................................................................412
Port Based Scheduling and Queuing on Access Ports ....................................................................................413
Scheduling on hybrid port with port based SAP queues ..................................................................................415
Slope QoS Policies............................................................................................................................. 417
In This Section..................................................................................................................................................417
Overview ..........................................................................................................................................................417
Configuration Guidelines .............................................................................................................................417
For 7210 SAS-M Network Mode ............................................................................................................417
For 7210 SAS-M Access-uplink mode ...................................................................................................418
WRED Slope enhancement ...................................................................................................................418
WRED support on 7210 SAS-T access-uplink mode ..................................................................................419
Basic Configurations ...................................................................................................................................420
Create a Slope QoS Policy ....................................................................................................................420
Applying Slope Policies..........................................................................................................................422
Default Slope Policy Values .......................................................................................................................422
Service Management Tasks .............................................................................................................................426
Deleting QoS Policies..................................................................................................................................426
Ports.......................................................................................................................................................426
Remove a Policy from the QoS Configuration .......................................................................................426
Copying and Overwriting QoS Policies .......................................................................................................426
Editing QoS Policies....................................................................................................................................429
Slope QoS Policy Command Reference ..........................................................................................................431
Command Hierarchies.................................................................................................................................431
Configuration Commands .....................................................................................................................431
WRED Commands ................................................................................................................................432
Operational Commands .........................................................................................................................432
Show Commands...................................................................................................................................432
Command Descriptions ...............................................................................................................................433
Configuration Commands ......................................................................................................................433
Operational Commands .........................................................................................................................433
Show Commands...................................................................................................................................441
7210 SAS-M, T, Mxp, Sx, S OS Quality of Service Guide 9
Table of Contents
Queue Management Policies............................................................................................................. 445
In This Section..................................................................................................................................................445
Overview...........................................................................................................................................................445
Basic Configurations ...................................................................................................................................446
Service Management Tasks .............................................................................................................................446
Creating a Queue Management Policy .......................................................................................................446
Editing QoS Policies....................................................................................................................................447
Queue Management Policy Command Reference ...........................................................................................449
Command Hierarchies.................................................................................................................................449
Configuration Commands for 7210 SAS-Mxp ........................................................................................449
Show Commands...................................................................................................................................449
Operational Commands .........................................................................................................................449
Command Descriptions ...............................................................................................................................451
Configuration Commands ......................................................................................................................451
Operational Commands .........................................................................................................................451
Show Commands...................................................................................................................................456
Remark Policies ................................................................................................................................. 461
In This Section..................................................................................................................................................461
Overview...........................................................................................................................................................461
Configuration Guideline...............................................................................................................................466
Basic Configurations ...................................................................................................................................466
Creating a Remark Policy ......................................................................................................................466
Editing QoS Policies...............................................................................................................................468
Remark Policy Command Reference ...............................................................................................................469
Command Hierarchies.................................................................................................................................469
Configuration Commands for 7210 SAS-T, 7210 SAS-Sx/S 1/10GE, 7210 SAS-Sx 10/100GE, and 7210
SAS-Mxp in Network Mode ....................................................................................................................469
Show Commands...................................................................................................................................469
Operational Commands .........................................................................................................................470
Command Descriptions ...............................................................................................................................471
Configuration Commands ......................................................................................................................471
Operational Commands .........................................................................................................................471
Show Commands...................................................................................................................................482
10 7210 SAS-M, T, Mxp, Sx, S OS Quality of Service Guide

List of Figures

QoS Policies ......................................................................................................................................... 21
Figure 1 7210 SAS Traffic Types Operating in Network Mode ....................................................................36
Figure 2 7210 SAS-M Traffic Types for Access Uplink Mode ......................................................................37
Figure 3 Traffic Queuing Model for Forwarding Classes..............................................................................62
Figure 4 RED Slope Characteristics ............................................................................................................87
Schedulers on 7210 SAS-Mxp ........................................................................................................... 409
Figure 5 SAP Egress Scheduling...............................................................................................................410
Figure 6 Scheduling on Network Ports.......................................................................................................412
Figure 7 Hybrid Port Egress Scheduling ....................................................................................................413
Figure 8 Port Based Scheduling and Queuing...........................................................................................414
Figure 9 Scheduling hierarchy for the hybrid port with SAPs.....................................................................415
7210 SAS-M, T, Mxp, Sx, S OS Quality of Service Guide 11
List of Figures
12 7210 SAS-M, T, Mxp, Sx, S OS Quality of Service Guide

List of Tables

Getting Started...................................................................................................................................... 19
Table 1 Configuration Process ..................................................................................................................19
QoS Policies ......................................................................................................................................... 21
Table 2 QoS Policy Types and Descriptions for 7210 SAS-M, T devices in Access-uplink mode .............24
Table 3 QoS Policy Types and Descriptions for 7210 SAS-M, T devices in network mode ......................27
Table 4 QoS Policy Types and Descriptions for 7210 SAS-Mxp devices ..................................................31
Table 5 QoS Policy Types and Descriptions for 7210 SAS-Sx/S 1/10GE and 7210 SAS0Sx 10/100GE
devices ..........................................................................................................................................35
Table 6 Default Network QoS Policy (type = ip-interface) Egress Marking ..............................................39
Table 7 Default Network QoS Policy (type = ip-interface) EXP to FC Mapping .........................................39
Table 8 Default Network QoS Policy of type 'port' Egress Marking ..........................................................41
Table 9 Default Network QoS Policy of Type Port - Dot1p/DSCP to FC Mapping ....................................42
Table 10 Default Network QoS Policy used for Egress Marking on Access-uplink Ports ............................43
Table 11 Default Network QoS Policy used for Dot1p to FC on Access-uplink Ports ..................................44
Table 12 Default Network Queue Policy Definition (for 7210 SAS-M, 7210 SAS-T, 7210 SAS-Sx/S 1/10GE,
7210 SAS-Sx 10/100GE, and 7210 SAS-Mxp configured in Network mode) ...............................45
Table 13 Default Network Queue Policy Definition (for 7210 SAS-M and 7210 SAS-T configured in access
uplink mode) .................................................................................................................................47
Table 14 Supported Hardware rates and burst step sizes for CIR and PIR values for all platforms ..........50
Table 15 Administrative Rate Example .......................................................................................................50
Table 16 Supported Hardware Rates and CIR/PIR Values for 7210 SAS-M, 7210 SAS-T, and 7210 SAS-Sx/S
1/10GE devices .............................................................................................................................58
Table 17 Supported Hardware Rates and CIR/PIR Values for 10-Gig Port for all platforms .......................58
Table 18 Supported Hardware Rates and CIR/PIR Values for 7210 SAS-Mxp devices ..............................59
Table 19 Default CBS and MBS Values ......................................................................................................60
Table 20 Service Ingress QoS Policy IP Match Criteria for 7210 SAS-M, 7210 SAS-Sx/S 1/10GE, 7210 SAS-
Sx 10/100GE, and 7210 SAS-Mxp network mode ........................................................................64
Table 21 Service Ingress QoS Policy MAC Match Criteria for 7210 SAS-M, 7210 SAS-T, 7210 SAS-Sx/S 1/
10GE, 7210 SAS-Sx 10/100GE, and 7210 SAS-Mxp Network mode ...........................................64
Table 22 Service Ingress QoS Policy IPv6 Match Criteria for 7210 SAS-M, 7210 SAS-T, 7210 SAS-Sx/S 1/
10GE, 7210 SAS-Sx 10/100GE and 7210 SAS-Mxp network mode ...........................................64
Table 23 Service Ingress QoS policy MAC criteria for 7210 SAS-M and 7210 SAS-T access-uplink mode
......................................................................................................................................................64
Table 24 Service Ingress QoS Policy IPv6 Match Criteria in 7210 SAS-M and 7210 SAS-T access-uplink
mode .............................................................................................................................................65
Table 25 Service Ingress QoS Policy MAC Match Criteria in 7210 SAS-M and 7210 SAS-T access-uplink
mode .............................................................................................................................................65
Table 26 MAC Match Ethernet Frame Types .............................................................................................65
Table 27 MAC Match Criteria Frame Type Dependencies .........................................................................65
Table 28 Default Service Ingress Policy ID 1 Definition ..............................................................................66
Table 29 Default SAP Egress Policy ID 1 Definition for 7210 SAS-Mxp ......................................................70
Table 30 Default Access Egress Policy ID 1 Definition for
Table 31 Default Access Egress Policy ID 1 Definition for 7210 SAS-M and 7210 SAS-T ..........................74
Table 32 TAF Impact on Shared Buffer Average Utilization Calculation ....................................................88
Table 33 Default Slope Policy Definition (for 7210 SAS-M configured in Network mode) ...........................90
7210 SAS-M and 7210 SAS-T ..........................73
7210 SAS-M, T, Mxp, Sx, S OS Quality of Service Guide 13
List of Tables
Table 34 Default Slope Policy Definition (for 7210 SAS-T, 7210 SAS-Sx/S 1/10GE, and 7210 SAS- Sx 10/
100GE configured in Network mode) ............................................................................................92
Table 35 Default values for the default slope policy for 7210 SAS-Mxp ......................................................94
Table 36 Minimum and Maximum Bandwidth Meters Example ...................................................................95
Table 37 Forwarding Classes ......................................................................................................................99
Table 38 Forwarding Class to Queue-ID Map for 7210 SAS-M, 7210 SAS-T, and 7210 SAS-Mxp ..........101
Table 39 Forwarding Class to Queue-ID Map for 7210 SAS-Sx/S 1/10GE and 7210 SAS-Sx 10/100GE .102
Network QoS Policies ........................................................................................................................ 125
Table 40 Network Policy Defaults for Policy Type IP Interface .................................................................133
Table 41 Default Network QoS Policy of Type IP Interface, LSP EXP to FC Mapping on Ingress ............134
Table 42 DSCP and Dot1p Marking ..........................................................................................................156
Table 43 Default DSCP Mapping Table......................................................................................................157
Table 44 Default DSCP Names to DSCP Value Mapping Table ..............................................................182
Table 45 Default Class Selector Code Points to DSCP Value Mapping Table .........................................183
Table 46 Show QoS Network Output Fields ............................................................................................196
Table 47 Show QoS Network Output Fields ............................................................................................202
Table 48 Show QoS Network Output Fields ............................................................................................206
Network Queue QoS Policies ............................................................................................................ 209
Table 49 Network Queue Labels and Descriptions ....................................................................................227
Access Egress QoS Policies on 7210 SAS-M, 7210 SAS-T, 7210 SAS-Sx/S 1/10GE, and 7210 SAS-
Sx 10/100GE ........................................................................................................................................ 331
Table 50 Default FC Marking Values for 7210 SAS-M and 7210 SAS-T (Access-uplink mode) and 7210 SAS-
M (Network mode) ......................................................................................................................336
Slope QoS Policies............................................................................................................................. 417
Table 51 Slope behavior table ...................................................................................................................419
Table 52 Show QoS Slope Policy Output Fields ......................................................................................441
Queue Management Policies............................................................................................................. 445
Table 53 Show Queue Management Policy Output Fields ......................................................................456
Remark Policies ................................................................................................................................. 461
Table 54 Summary of remark policy and attachment points for 7210 SAS- T, 7210 SAS-Sx/S 1/10GE, and
7210 SAS-Sx 10/100GE(Network mode) ....................................................................................462
Table 55 Summary of remark policy and attachment points for SAS-Mxp ................................................464
Table 56 Show Remark Policy Output Fields ..........................................................................................482
14 7210 SAS-M, T, Mxp, Sx, S OS Quality of Service Guide

About This Guide

This guide describes Quality of Service (QoS) provided by the 7210 SAS-M, T, Sx/S 1/ 10GE,Sx 10/100GE, and Mxp presents examples to configure and implement various protocols and services.
On 7210 SAS devices, not all the CLI commands are supported on all the platforms and in all the modes. In many cases, the CLI commands are mentioned explicitly in this document. In other cases, it is implied and easy to know the CLIs that are not supported on a particular platform.All the variants of 7210 SAS-M and 7210 SAS-T can be configured in two modes, that is, in network mode and in access-uplink mode. In network mode configuration 7210 SAS-M and 7210 SAS-T uses IP/MPLS to provide service transport. In access-uplink mode configuration 7210 SAS-M and 7210 SAS-T uses Ethernet QinQ technology to provide service transport. The mode can be selected by configuring the BOF appropriately. 7210 SAS-Mxp, 7210 SAS-Sx/S 1/10GE, and 7210 SAS-Sx 10/100GE devices operates only on Network mode.

Preface

This guide also presents examples to configure and implement various tests.
Note:
• This user guide is applicable to all 7210 SAS-M, 7210 SAS-T, 7210 SAS-Mxp, 7210 SAS-Sx/S 1/10GE, and 7210 SAS-Sx 10/100GE platforms, unless specified otherwise.
• In either mode, it is expected that the user will only configure the required CLI parameters appropriate for the mode he intends to use. Unless otherwise noted, most of the configuration is similar in both the network mode and Access uplink mode.
• Only 7210 SAS-M, 7210 SAS-T, supports access-uplink mode. 7210 SAS-Mxp, 7210 SAS-Sx/S 1/10GE, and 7210 SAS-Sx 10/100GE supports only Network Mode.
• The 7210 SAS-Sx/S 1/10GE and 7210 SAS-Sx 10/100GE can be operated in standalone mode and satellite mode. The user guide provides features and CLI commands supported in 7210 SAS-Sx/S 1/10GE and 7210 SAS-Sx 10/100GE standalone mode of operations. Only the Basics System Configuration User Guide contains information on how to boot the 7210 SAS-Sx/S 1/10GE and 7210 SAS-Sx 10/ 100GE in satellite mode of operation.
7210 SAS-M, T, Mxp, Sx, S OS Quality of Service Guide 15
About This Guide

Audience

On 7210 SAS devices, not all the CLI commands are supported on all the platforms and in all the modes. In many cases, the CLI commands are mentioned explicitly in this document. In other cases, it is implied and easy to know the CLIs that are not supported on a particular platform.
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 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

List of Technical Publications

The 7210 SAS-M, T, X, R6, R12, Mxp, Sx OS documentation set is composed of the following books:
• 7210 SAS-M, T, X, R6, R12, Mxp, Sx OS Basic System Configuration Guide
This guide describes basic system configurations and operations.
• 7210 SAS-M, T, X, R6, R12, Mxp, Sx OS System Management Guide
This guide describes system security and access configurations as well as event logging and accounting logs.
• 7210 SAS-M, T, X, R6, R12, Mxp, Sx OS Interface Configuration Guide
This guide describes card, Media Dependent Adapter (MDA), link aggregation group (LAG), and port provisioning.
• 7210 SAS-M, T, X, R6, R12, Mxp, Sx OS Router Configuration Guide
This guide describes logical IP routing interfaces and associated attributes such as an IP address, port, as well as IP and MAC-based filtering.
• 7210 SAS-M, T, Mxp, Sx OS Services Guide
This guide describes how to configure service parameters such as customer information, and user services.
16 7210 SAS-M, T, Mxp, Sx, S OS Quality of Service Guide
• 7210 SAS-M, T, X, R6, R12, Mxp, Sx 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-M,T, Mxp, Sx Quality of Service Guide
This guide describes how to configure Quality of Service (QoS) policy management.
• 7210-SAS-M, T, X, R6, R12, Mxp, Sx OS MPLS Guide
This guide describes how to configure Multiprotocol Label Switching (MPLS) and Label Distribution Protocol (LDP).
• 7210-SAS-M, T, X, R6, R12, Mxp, Sx OS Routing Protocols Guide
This guide provides an overview of routing concepts and provides configuration examples for OSPF, IS-IS, and route policies.

Technical Support

Preface
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://www.alcatel-lucent.com/wps/portal/support
7210 SAS-M, T, Mxp, Sx, S OS Quality of Service Guide 17
About This Guide
18 7210 SAS-M, T, Mxp, Sx, S OS Quality of Service Guide

In This Chapter

This chapter provides process flow information to configure Quality of Service (QoS) policies and provision services.
This guide provides information to configure QoS policies in both network mode and access­uplink mode. Unless otherwise noted, many of the qos policies are applicable to both network mode and access-uplink mode.

Getting Started

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
• Accounting Mode Frame Based Accounting
•Network Network QoS Policies
•Network queue Network Queue QoS Policies
• SAP ingress Service Ingress QoS Policies
7210 SAS-M, T, Mxp, Sx, S OS Quality of Service Guide 19
Alcatel-Lucent 7210 SAS-Series Services Configuration Process
Table 1: Configuration Process (Continued)
Area Task Chapter (Continued)
• Access egress Access Egress QoS Policies on
7210 SAS-M, 7210 SAS-T, 7210 SAS-Sx/S 1/10GE, and 7210 SAS­Sx 10/100GE
• Access egress for 7210
SAS-Mxp
• Port scheduler QoS Port Scheduler Policies for
Schedulers on 7210 SAS-Mxp Schedulers on 7210 SAS-Mxp
•Slope Slope QoS Policies
Queue Management Policies Queue Management Policies
Remark Policies Remark Policies
Reference • List of IEEE, IETF, and
other proprietary entities
Access Egress QoS Policies for 7210 SAS-Mxp
7210 SAS-M and 7210 SAS-T
Standards and Protocol Support
20 7210 SAS-M, T, Mxp, Sx, S OS Quality of Service Guide

In This Chapter

This chapter provides information about Quality of Service (QoS) policy management.
Topics in this chapter include:
• QoS Overview
• QoS Policy Entities
• Configuration Notes

QoS Policies

QoS Overview

The 7210 SAS devices are designed with QoS mechanisms on both ingress and egress to support multiple services per physical port. The 7210 SAS devices are extensive and flexible capabilities to Classify, Police, Queue, Shape, and mark traffic.
Note: The QoS capabilities supported on different 7210 SAS platforms are different. In other words, not all the platforms support all of the capabilities. Please read through the following chapters to know what is available on different 7210 SAS platforms.
In the Nokia 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 Nokia 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 Nokia 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.
7210 SAS-M, T, Mxp, Sx, S OS Quality of Service Guide 21
QoS Overview
The 7210 SAS supports eight forwarding classes internally named: Network-Control, High­1, Expedited, High-2, Low-1, Assured, Low-2 and Best-Effort. The forwarding classes are discussed in more detail in Forwarding Classes.
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. Typically, Policy ID 1 or Policy ID “default” (there are a few instances where the default QoS policy uses a different ID) 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 defining marking behavior.
• Slope policies define default buffer allocations and WRED slope definitions.
• Port Scheduler policies, SAP ingress/egress policies or network/network-queue policies determine how queues are scheduled.

Overview of QoS Policies on 7210 SAS-M and 7210 SAS-T in Access-uplink mode

When configured to operate in access-uplink mode, 7210 SAS M and 7210 SAS-T QoS policies are applied on service ingress, access port egress, and access-uplink port ingress and egress. These policies allow user to configure the following:
• 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 (for access SAP ingress)
• Access egress (for access port egress)
• Network (for access-uplink port, ingress and egress)
• Network queue (for access-uplink port, egress)
22 7210 SAS-M, T, Mxp, Sx, S OS Quality of Service Guide
QoS Policies
• Port scheduler (for access port and access-uplink port egress)
• Slope Policies
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/policier 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-to­point fashion within the service.
An access egress policy is analogous to a SAP egress policy as defined in the 7x50 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. It applies to all the SAPs on the given port. 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 is not user configurable and software always allocates 8 queues at the port level. An access egress policy also defines how to remark the forwarding class to packet header bits (for example: IEEE 802.1p bits in the L2 VLAN header, etc.).
For devices configured to operate in access uplink mode, network QoS policies apply to access uplink ports. Access-uplink ports in access-uplink mode are analogous to network ports in network mode. On ingress, the policy applied to an access-uplink port 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 packet header values (for example: IEEE 802.1p value in the L2 header, etc.) for traffic to be transmitted into the core network.
Network queue policies are applied on egress of access-uplink ports when operating in access-uplink mode. The policies define the forwarding class queue characteristics for these entities. The FCs are mapped onto the queues. There are 8 queues at the port level. FC-to­queue mapping is system defined not user configurable. The number of queues is not user configurable and software always allocates 8 queues at the port level.
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.
7210 SAS-M, T, Mxp, Sx, S OS Quality of Service Guide 23
QoS Overview
One service ingress QoS policy can be applied to a specific SAP. Access egress policy can be applied to an access port. One access egress QoS policy can be applied to the access port. One network QoS policy can be applied to a access-uplink port when operating in access­uplink mode. A network QoS policy defines both ingress and egress behavior. One network queue policy can be applied to an access-uplink port. If no QoS policy is explicitly applied to a SAP, port or interface, a default QoS policy is applied.
A summary of the major functions performed by the QoS policies is listed in Table 3.
Note: Not all policies are supported on all platforms. For more information, see the sections, and chapters below.
Table 2: QoS Policy Types and Descriptions for 7210 SAS-M, T devices in Access-uplink mode
Policy Type Device
Operating Mode
Service Ingress Access-Uplink
mode
Access Egress Access-Uplink
mode
Network Access-Uplink
mode
Applied at… Description Page
SAP ingress • Defines up to 16 forwarding class
61
meters and meter parameters for traffic classification.
• Defines match criteria to map flows to the meters based on any one of the criteria.
Access port • Defines up to 8 forwarding class queues
42
and queue parameters for traffic classification.
• Maps forwarding classes to the queues.
• Defines FC to remarking values (for example: Dot1p, etc.).
• Defines CIR levels and PIR weights that determines how the queue gets prioritized by the scheduler.
Access-Uplink port
• Used for classification/marking of IP packets.
37
• At ingress, defines Dot1p to FC mapping and 8 meters.
• At egress, defines FC to remarking values (for example: Dot1p, etc.)
24 7210 SAS-M, T, Mxp, Sx, S OS Quality of Service Guide
QoS Policies
Table 2: QoS Policy Types and Descriptions for 7210 SAS-M, T devices in Access-uplink mode (Continued)
Policy Type Device
Operating Mode
Network Queue Access-uplink
mode
Slope Access-uplink
mode
Port scheduler Access-uplink
mode
Applied at… Description Page
Access-uplink port
Access ports and Access uplink ports
Access ports and Access uplink ports
• Defines forwarding class mappings to network queues and queue characteristics for the queues.
• Enables or disables the high-slope, low­slope, and non-TCP parameters within the egress pool.
• Defines the parameters for the port scheduler.
44
90
94

Overview of QoS Policies on 7210 SAS-M and 7210 SAS-T in network mode

QoS policies are applied on service ingress, access port egress, network port ingress and egress, and network IP interfaces ingress when configured to operate in network mode.
These policies allow user to configure the following:
• 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
• QoS marking/interpretation
There are several types of QoS policies:
• Service ingress (for access SAP ingress)
• Access egress (for access port egress)
• Network (for network and hybrid port, ingress and egress)
• Network queue (for network and hybrid port, egress)
• Port scheduler (for access port, network port and hybrid port egress)
• Slope Policies
• Remark policies (for access port, network port and hybrid port egress marking only on 7210 SAS-T Network Mode)
7210 SAS-M, T, Mxp, Sx, S OS Quality of Service Guide 25
QoS Overview
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/policier 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-to­point fashion within the service.
An access egress policy is analogous to a SAP egress policy as defined in the 7x50 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. It applies to all the SAPs on the given port. 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 is not user configurable and software allocates 8 queues at the port level. An access egress policy also defines how to remark the forwarding class to packet header bits (e.g. IEEE 802.1p bits in the L2 VLAN header, and others.).
For devices configured to operate in network mode, there are two types of network QoS policies, one applied to a network IP interface and the other is applied to a network port. Network QoS policies are applied to IP interfaces. On ingress, the policy applied to an IP interface maps incoming MPLS LSP EXP 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 MPLS LSP EXP values for traffic to be transmitted into the core network. The network policy applied to a network port maps incoming IP packets, DSCP or Dot1p values, to the forwarding class and the profile state for the traffic received from the core network. On egress, the policy maps forwarding class and profile state to DSCP and/or Dot1p values for IP traffic to be transmitted into the core network.
Network queue policies are applied on egress to network ports when operating in network mode. The policies define the forwarding class queue characteristics for these entities. 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 is not user configurable and software allocates 8 queues at the port level.
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.
26 7210 SAS-M, T, Mxp, Sx, S OS Quality of Service Guide
QoS Policies
One service ingress QoS policy can be applied to a specific SAP Access egress policy can be applied to an access port. One access egress QoS policy can be applied to the access port. One network QoS policy can be applied to a specific IP interface or network port based on the type of network QoS policy. when operating in network mode. One network QoS policy can be applied to a access-uplink port when operating in access-uplink modeA network QoS policy defines both ingress and egress behavior. One network queue policy can be applied to the network port or a access-uplink port.
If no QoS policy is explicitly applied to a SAP, port or interface, a default QoS policy is applied.
A summary of the major functions performed by the QoS policies is listed in Tabl e 3.
Note: Not all policies are supported on all platforms. For more information, see the sections, and chapters below.
Table 3: QoS Policy Types and Descriptions for 7210 SAS-M, T devices in network mode
Policy Type Device
Operating Mode
Applied at… Description Page
Service Ingress Network mode SAP ingress • Defines up to 16 forwarding class
meters and meter parameters for traffic classification.
• Defines match criteria to map flows to the meters based on any one of the criteria.
Access Egress Network mode Access port • Defines up to 8 forwarding class queues
and queue parameters for traffic classification.
• Maps forwarding classes to the queues.
• Defines FC to remarking values.
• Defines CIR levels and PIR weights that determines how the queue gets prioritized by the scheduler.
61
61
7210 SAS-M, T, Mxp, Sx, S OS Quality of Service Guide 27
QoS Overview
Table 3: QoS Policy Types and Descriptions for 7210 SAS-M, T devices in network mode (Continued)
Policy Type Device
Operating Mode
Network (of type’ip­interface’)
Network (of type’port’)
Network Queue Network mode Network Ports
Slope Network mode Access ports,
Network mode IP interface • Used for classification/marking of
Network mode Network and
Applied at… Description Page
Hybrid Ports
and Hybrid Ports
Network ports and Hybrid ports
MPLS packets.
• At ingress, defines MPLS LSP-EXP to FC mapping and 12 meters used by FCs.
• At egress, defines FC to MPLS LSP­EXP marking.
• Used for classification/marking of IP packets.
• At ingress, defines DSCP or Dot1p to FC mapping and 8 meters.
• At egress, defines FC to DSCP or Dot1p marking or both.
• Defines forwarding class mappings to network queues and queue characteristics for the queues.
• Enables or disables the high-slope, low­slope, and non-TCP parameters within the egress pool.
37
37
44
90
Port scheduler Network mode Access ports,
Network ports and Hybrid ports
Remark Network Mode
(Only on 7210 SAS-T)
Network Port, Access ports and Hybrid Ports
• Defines the parameters for the port scheduler.
• Applied at egress, defines the FC to Priority Bits (DSCP or dot1p or EXP) marking.
94
461

Overview of QoS Policies on 7210 SAS-Mxp in network mode

QoS policies are applied on service ingress, access port egress, network port ingress and egress, and network IP interfaces ingress when configured to operate in network mode.
28 7210 SAS-M, T, Mxp, Sx, S OS Quality of Service Guide
QoS Policies
These policies allow user to configure the following:
• 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
• QoS marking/interpretation
There are several types of QoS policies:
• Service ingress (for access SAP ingress)
• Access egress (for access SAP egress)
• Access egress (for access port egress)
• Network (for network and hybrid port, ingress and egress)
• Network queue (for network and hybrid port, egress)
• Port scheduler (for access port, network port and hybrid port egress)
• Slope Policies
• Remark policies (for access port, network port and hybrid port egress marking)
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/policier 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-to­point fashion within the service.
Service egress QoS policies are applied to SAPs and map forwarding classes to service egress queues for a service. The system allocates a maximum of 8 queues per SAP for the 8 forwarding classes. It is not user configurable. All traffic types (that is, both unicast and BUM traffic types) share the same queue on service egress. A service egress QoS policy defines the forwarding class queue characteristics and also defines how to remark the forwarding class to priority bits in the packet header (for example: IEEE 802.1p bits in the Ethernet VLAN tag) in the customer traffic.
7210 SAS-M, T, Mxp, Sx, S OS Quality of Service Guide 29
QoS Overview
An access egress policy is applied on the physical port as opposed to the logical port (SAP) for SAP egress policy. It applies to all the SAPs on the given port. An access egress policy defines how to remark the forwarding class to packet header bits (For example: IEEE 802.1p bits in the L2 VLAN header, and others.).
The 7210 SAS-Mxp provides an option to use port-based queuing on access ports. This is a per-node configuration option and is mutually exclusive to use of SAP-based egress queues (configured through service egress policies). When enabled, all SAPs on the access port share a set of 8 queues configured on the port and the access egress policy is used to define the queue parameters for port-based queues.
For devices configured to operate in network mode, there are two types of network QoS policies, one applied to a network IP interface and the other is applied to a network port. Network QoS policies are applied to IP interfaces. On ingress, the policy applied to an IP interface maps incoming MPLS LSP EXP 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 MPLS LSP EXP values for traffic to be transmitted into the core network. The network policy applied to a network port maps incoming IP packets, DSCP or Dot1p values, to the forwarding class and the profile state for the traffic received from the core network. On egress, the policy maps forwarding class and profile state to DSCP and/or Dot1p values for IP traffic to be transmitted into the core network.
Network queue policies are applied on egress to network ports when operating in network mode. The policies define the forwarding class queue characteristics for these entities. 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 is not user configurable and software allocates 8 queues at the port level.
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. Access egress policy can be applied to an access port. One access egress QoS policy can be applied to the access port. One network QoS policy can be applied to a specific IP interface or network port based on the type of network QoS policy. A network QoS policy defines both ingress and egress behavior. One network queue policy can be applied to the network port. If no QoS policy is explicitly applied to a SAP, port or interface, a default QoS policy is applied.
A summary of the major functions performed by the QoS policies is listed in Table 3.
Note: Not all policies are supported on all platforms. For more information, see the sections, and chapters below.
30 7210 SAS-M, T, Mxp, Sx, S OS Quality of Service Guide
Loading...
+ 484 hidden pages
Buy Points How it Works FAQ Contact Us Questions and Suggestions Privacy Policy Cookie Policy Terms of Use