DetNet QoS Policy
draft-xiong-detnet-qos-policy-02

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DeNet WG                                                        Q. Xiong
Internet-Draft                                                     J. Yu
Intended status: Standards Track                         ZTE Corporation
Expires: May 4, 2020                                              P. Liu
                                                                  F. Qin
                                                            China Mobile
                                                        November 1, 2019

                           DetNet QoS Policy
                    draft-xiong-detnet-qos-policy-02

Abstract

   This document proposes a Quality of Service (QoS) policy to apply
   Differentiated Services (DiffServ) model for Deterministic Networking
   (DetNet) and defines a DetNet DiffServ mechanism including DetNet IP
   and MPLS encapsulation.

Status of This Memo

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   provisions of BCP 78 and BCP 79.

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   This Internet-Draft will expire on May 4, 2020.

Copyright Notice

   Copyright (c) 2019 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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   include Simplified BSD License text as described in Section 4.e of

Xiong, et al.              Expires May 4, 2020                  [Page 1]
Internet-Draft              DetNet QoS Policy              November 2019

   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Requirements Language . . . . . . . . . . . . . . . . . .   3
     1.2.  Terminology . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  DetNet DiffServ Overview  . . . . . . . . . . . . . . . . . .   3
     2.1.  DetNet Classifiers  . . . . . . . . . . . . . . . . . . .   4
     2.2.  DetNet Traffic Conditioners . . . . . . . . . . . . . . .   4
       2.2.1.  Scheduler . . . . . . . . . . . . . . . . . . . . . .   5
       2.2.2.  Order . . . . . . . . . . . . . . . . . . . . . . . .   5
     2.3.  DetNet DSCP . . . . . . . . . . . . . . . . . . . . . . .   5
     2.4.  DetNet PHB  . . . . . . . . . . . . . . . . . . . . . . .   5
     2.5.  DetNet Queuing  . . . . . . . . . . . . . . . . . . . . .   6
   3.  DetNet IP DiffServ Consideration  . . . . . . . . . . . . . .   6
   4.  DetNet MPLS DiffServ Consideration  . . . . . . . . . . . . .   6
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .   7
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   7
   7.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .   7
   8.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   7
     8.1.  Informative References  . . . . . . . . . . . . . . . . .   7
     8.2.  Normative References  . . . . . . . . . . . . . . . . . .   7
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   8

1.  Introduction

   As defined in [RFC8655], Deterministic Networking (DetNet) provides a
   capability to carry specified unicast or multicast data flows for
   real-time applications with extremely low data loss rates and bounded
   latency.  DetNet and non-DetNet packets may be allowed to transmitted
   in the same network and more than one DetNet flows which has
   different priorities may be forwarded through the DetNet domain.  The
   DetNet Class of Service (CoS) should be taken into consideration to
   provide Quality of Service (QoS) for DetNet services.

   As discussed in [I-D.ietf-detnet-mpls] and [I-D.ietf-detnet-ip],
   Differentiated Services (DiffServ) can provide traffic forwarding
   treatment for DetNet networks.  The DiffServ architecture as
   specified in [RFC2475] defined a model that traffic entering a
   DiffServ domain is classified and conditioned at the boundaries and
   marked with a DiffServ Code Point (DSCP) defined in [RFC2474].  The
   DSCP is used at transit nodes to select the Per Hop Behavior (PHB)
   that determines the scheduling treatment.  And [RFC3270] provide a
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