YANG Model for QoS
draft-ietf-rtgwg-qos-model-02

Document Type Active Internet-Draft (rtgwg WG)
Authors Aseem Choudhary  , Mahesh Jethanandani  , Norm Strahle  , Ebben Aries  , Ing-Wher Chen 
Last updated 2020-07-09
Replaces draft-asechoud-rtgwg-qos-model
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Network Working Group                                       A. Choudhary
Internet-Draft                                             Cisco Systems
Intended status: Standards Track                         M. Jethanandani
Expires: January 9, 2021                                          VMware
                                                              N. Strahle
                                                                E. Aries
                                                        Juniper Networks
                                                                 I. Chen
                                                   The MITRE Corporation
                                                           July 08, 2020

                           YANG Model for QoS
                     draft-ietf-rtgwg-qos-model-02

Abstract

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

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at https://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on January 9, 2021.

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
   Provisions Relating to IETF Documents
   (https://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must

Choudhary, et al.        Expires January 9, 2021                [Page 1]

Internet-Draft             YANG Model For QoS                  July 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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