YANG Model for QoS
draft-ietf-rtgwg-qos-model-01
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Network Working Group                                       A. Choudhary
Internet-Draft                                             Cisco Systems
Intended status: Standards Track                         M. Jethanandani
Expires: October 10, 2020                                         VMware
                                                              N. Strahle
                                                                E. Aries
                                                        Juniper Networks
                                                                 I. Chen
                                                   The MITRE Corporation
                                                          April 08, 2020

                           YANG Model for QoS
                     draft-ietf-rtgwg-qos-model-01

Abstract

   This document describes a YANG model for Quality of Service (QoS)
   configuration and operational parameters.

Status of This Memo

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   This Internet-Draft will expire on October 10, 2020.

Copyright Notice

   Copyright (c) 2020 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
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   (https://trustee.ietf.org/license-info) in effect on the date of
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Choudhary, et al.       Expires October 10, 2020                [Page 1]

Internet-Draft             YANG Model For QoS                 April 2020

   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Tree Diagrams . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  QoS Model Design  . . . . . . . . . . . . . . . . . . . . . .   3
   4.  DiffServ Model Design . . . . . . . . . . . . . . . . . . . .   4
   5.  Modules Tree Structure  . . . . . . . . . . . . . . . . . . .   5
   6.  Modules . . . . . . . . . . . . . . . . . . . . . . . . . . .  14
     6.1.  IETF-QOS-CLASSIFIER . . . . . . . . . . . . . . . . . . .  14
     6.2.  IETF-QOS-POLICY . . . . . . . . . . . . . . . . . . . . .  17
     6.3.  IETF-QOS-ACTION . . . . . . . . . . . . . . . . . . . . .  20
     6.4.  IETF-QOS-TARGET . . . . . . . . . . . . . . . . . . . . .  38
     6.5.  IETF-DIFFSERV . . . . . . . . . . . . . . . . . . . . . .  40
     6.6.  IETF-QUEUE-POLICY . . . . . . . . . . . . . . . . . . . .  51
     6.7.  IETF-SCHEDULER-POLICY . . . . . . . . . . . . . . . . . .  54
   7.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  57
   8.  Security Considerations . . . . . . . . . . . . . . . . . . .  57
   9.  Acknowledgement . . . . . . . . . . . . . . . . . . . . . . .  57
   10. References  . . . . . . . . . . . . . . . . . . . . . . . . .  57
     10.1.  Normative References . . . . . . . . . . . . . . . . . .  57
     10.2.  Informative References . . . . . . . . . . . . . . . . .  58
   Appendix A.  Company A, Company B and Company C examples  . . . .  59
     A.1.  Example of Company A Diffserv Model . . . . . . . . . . .  59
     A.2.  Example of Company B Diffserv Model . . . . . . . . . . .  68
     A.3.  Example of Company C Diffserv Model . . . . . . . . . . .  82
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  89

1.  Introduction

   This document defines a base YANG [RFC6020] [RFC7950] data module for
   Quality of Service (QoS) configuration parameters.  Differentiated
   Services (DiffServ) module is an augmentation of the base QoS model.
   Remote Procedure Calls (RPC) or notification definition is not part
   of this document.  QoS base modules define a basic building blocks to
   define a classifier, policy, action and target.  The base modules
   have been augmented to include packet match fields and action
   parameters to define the DiffServ module.  Queues and schedulers are
   stitched as part of diffserv policy itself or separate modules are
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