The Requirements for Precise Transport Networking
draft-xiong-rtgwg-precise-tn-requirements-00

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RTGWG                                                           Q. Xiong
Internet-Draft                                           ZTE Corporation
Intended status: Standards Track                                  P. Liu
Expires: October 26, 2020                                   China Mobile
                                                          April 24, 2020

           The Requirements for Precise Transport Networking
              draft-xiong-rtgwg-precise-tn-requirements-00

Abstract

   The future networks not only need to offer the Service Level
   Agreements (SLA) guarantees such as low lantency and jitter, low
   packet loss and high reliability, but also need to support the
   precise services such as flexible resource allocation and service
   isolation.  This document proposes a set of performance requirements
   and precise properties for Precise Transport Networking in various
   industries such as 5G networks.

Status of This Memo

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   This Internet-Draft will expire on October 26, 2020.

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Internet-DraThe Requirements for Precise Transport Networkin  April 2020

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Conventions used in this document . . . . . . . . . . . . . .   3
     2.1.  Terminology . . . . . . . . . . . . . . . . . . . . . . .   3
     2.2.  Requirements Language . . . . . . . . . . . . . . . . . .   3
   3.  Terms of Precise Transport Networking . . . . . . . . . . . .   3
   4.  Requirements of Precise Transport Networking  . . . . . . . .   4
     4.1.  Precise Latency, Jitter, and Packet Loss  . . . . . . . .   4
     4.2.  Precise SLA Guarantees for Converged Networks . . . . . .   4
     4.3.  Precise Resource Allocation . . . . . . . . . . . . . . .   4
     4.4.  Precise Service Isolation . . . . . . . . . . . . . . . .   5
     4.5.  Precise OAM . . . . . . . . . . . . . . . . . . . . . . .   5
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .   5
   6.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .   5
   7.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   5
   8.  Normative References  . . . . . . . . . . . . . . . . . . . .   6
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   6

1.  Introduction

   5G network is oriented to the internet of everything.  In addition to
   the Enhanced Mobile Broadband (eMBB) and Massive Machine Type
   Communications(mMTC) services, it also supports the Ultra-reliable
   Low Latency Communications (uRLLC) services.  The uRLLC services
   cover the industries such as intelligent electrical network,
   intelligent factory, internet of vehicles, industry automation and
   other industrial internet scenarios, which is the key demand of
   digital transformation of vertical domains.  These uRLLC services
   demand SLA guarantees such as low latency and high reliability and
   other deterministic and precise properties.

   For the intelligent electrical network, there are deterministic
   requirements for communication delay, jitter and packet loss rate.
   For example, in the electrical current difference model, a delay of
   3~10ms and a jitter variation is no more than 100us are required.
   The isolation requirement is also important.  For example, the
   automatic operation, control of a process, isochronous data and low
   priority service need to meet the requirements of hard isolation.  In
   addition to the requirements of delay and jitter, the differential
   protection (DP) service needs to be isolated from other services.
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