Large-Scale Deterministic Network
draft-qiang-detnet-large-scale-detnet-00

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Last updated 2018-05-29
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Network Working Group                                      L. Qiang, Ed.
Internet-Draft                                                    B. Liu
Intended status: Informational                                    Huawei
Expires: November 30, 2018                                       L. Geng
                                                            China Mobile
                                                            May 29, 2018

                   Large-Scale Deterministic Network
                draft-qiang-detnet-large-scale-detnet-00

Abstract

   This document presents a Large-scale Deterministic Network (LDN)
   system, which consists of Scalable Deterministic Forwarding (SDF) and
   Scalable Resource Reservation (SRR).

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   This Internet-Draft is submitted in full conformance with the
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   This Internet-Draft will expire on November 30, 2018.

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Requirements Language . . . . . . . . . . . . . . . . . .   2
     1.2.  Terminology & Abbreviations . . . . . . . . . . . . . . .   2
   2.  Scalable Deterministic Forwarding . . . . . . . . . . . . . .   3
     2.1.  Three Queues  . . . . . . . . . . . . . . . . . . . . . .   4
     2.2.  Cycle Identifier Carrying . . . . . . . . . . . . . . . .   5
   3.  Scalable Resource Reservation . . . . . . . . . . . . . . . .   5
   4.  Performance Analysis  . . . . . . . . . . . . . . . . . . . .   6
     4.1.  Queueing Delay  . . . . . . . . . . . . . . . . . . . . .   6
     4.2.  Jitter  . . . . . . . . . . . . . . . . . . . . . . . . .   6
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   6
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .   6
   7.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .   6
   8.  Normative References  . . . . . . . . . . . . . . . . . . . .   6
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   7

1.  Introduction

   This document presents a Large-scale Deterministic Network (LDN)
   system, which consists of Scalable Deterministic Forwarding (SDF) and
   Scalable Resource Reservation (SRR).  The technologies of SDF and SRR
   can be used independently.

   As [draft-ietf-detnet-problem-statement] indicates, deterministic
   forwarding can only apply on flows with well-defined traffic
   characteristics.  The traffic characteristics of DetNet flow has been
   discussed in [draft-ietf-detnet-architecture], that could be achieved
   through shaping at Ingress node or up-front commitment by
   application.  This document assumes that DetNet flows follow some
   specific traffic patterns accordingly.

1.1.  Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in RFC 2119.

1.2.  Terminology & Abbreviations

   This document uses the terminology defined in
   [draft-ietf-detnet-architecture].

   TSN: Time Sensitive Network

   CQF: Cyclic Queuing and Forwarding

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   LDN: Large-scale Deterministic Network

   SDF: Scalable Deterministic Forwarding

   SRR: Scalable Resource Reservation

   DSCP: Differentiated Services Code Point

   EXP: Experimental

   T: the length of a cycle

   H: the number of hops

   K: the size of aggregated resource reservation window
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