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    7210 SERVICE ACCESS SWITCH

    7210 SAS 7210 SAS-K 2F2T1C and 7210 SAS-K 2F4T6C OS QoS guideRelease 9.0.R4

    3HE12057AAAATQZZA

    Issue: 1

    April 2017

    TitlePage Guide Name

  • 2

    7210 SAS 7210 SAS-K 2F2T1C and 7210 SAS-K 2F4T6C OS QoS guide

    3HE12057AAAATQZZA Issue: 1

    Nokia is a registered trademark of Nokia Corporation. Other products and company names mentioned herein may be trademarks or trade names of their respective owners.

    The information presented is subject to change without notice. No responsibility is assumed for inaccuracies contained herein.

    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.

  • 7210 SAS 7210 SAS-K 2F2T1C and 7210 SAS-K 2F4T6C OS QoS guide 3

    Table of Contents

    Table of Contents ................................................................................................................................... 3

    List of Figures....................................................................................................................................... 11

    List of Tables ........................................................................................................................................ 13

    Preface................................................................................................................................................... 15About This Guide................................................................................................................................................15

    Audience .......................................................................................................................................................15List of Technical Publications ........................................................................................................................15

    Getting Started...................................................................................................................................... 17In This Chapter ...................................................................................................................................................17Nokia 7210 SAS-Series Services Configuration Process...................................................................................17

    QoS Policies ......................................................................................................................................... 19In This Chapter ...................................................................................................................................................19QoS Overview ....................................................................................................................................................20

    Overview of QoS Policies on 7210 SAS-K 2F2T1C ......................................................................................21Overview of QoS Policies on 7210 SAS-K 2F4T6C ......................................................................................23QoS marking interpretation ...........................................................................................................................24Summary of major functions of QoS policies ................................................................................................27

    Service and Network QoS Policies ..........................................................................................................30Network QoS Policies....................................................................................................................................31

    Network QoS Policies on network ports on 7210 SAS-K 2F4T6C ...........................................................31Ingress Classification Support for Network ports .....................................................................................33Egress Marking Support for Network ports ..............................................................................................33

    Network QoS policies on Access-uplink ports ...............................................................................................36Ingress Classification Support for access-uplink ports.............................................................................37

    Network Queue policies ...............................................................................................................................38Network Queue policies on 7210 SAS-K 2F2T1C and 7210 SAS-K 2F4T6C..........................................38

    Queues and Queue Parameters ...................................................................................................................41Queue- Queue ID.....................................................................................................................................42Queue- Committed Information Rate .......................................................................................................42Queue- Peak Information Rate ................................................................................................................44Queue- Adaptation Rule for Queues........................................................................................................44Queue- Committed Burst Size .................................................................................................................45Queue- Maximum Burst Size ...................................................................................................................45Queue Counters.......................................................................................................................................47Queue support on various platforms .....................................................................................................47

    Service Ingress QoS Policies .......................................................................................................................48Service Ingress QoS policies ........................................................................................................................48

    Default Service Ingress Policy .................................................................................................................49Service Ingress Classification .......................................................................................................................50

    Service Ingress Classification .................................................................................................................50

  • Table of Contents

    4 7210 SAS 7210 SAS-K 2F2T1C and 7210 SAS-K 2F4T6C OS QoS guide

    Service Ingress Classification IP and Mac Packet fields........................................................................51Service Egress QoS Policies ........................................................................................................................54

    Default Service Egress Policy .................................................................................................................55Buffer Pools...................................................................................................................................................55

    Buffer pools on 7210 SAS-K 2F2T1C and 7210 SAS-K 2F4T6C ............................................................56Ring and Non-Ring Buffer pool ...............................................................................................................57Configuration Guidelines for CBS and MBS ...........................................................................................60

    Slope Policies................................................................................................................................................60RED Slopes...................................................................................................................................................61

    Operation and Configuration of RED Slopes ...........................................................................................61Simplified overview of RED for 7210 SAS-K platform..............................................................................61Slope Policy Parameters ..........................................................................................................................63

    Schedulers..........................................................................................................................................................64Scheduler on 7210 SAS-K ............................................................................................................................64

    CPU Queues on SAS-K......................................................................................................................................65......................................................................................................................................................................65

    Egress Port Rate Limiting...................................................................................................................................65......................................................................................................................................................................65

    Forwarding Classes................................................................................

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