DetNet Data Plane: IP over IEEE 802.1 Time Sensitive Networking (TSN)
draft-ietf-detnet-ip-over-tsn-01

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Last updated 2019-10-28
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DetNet                                                     B. Varga, Ed.
Internet-Draft                                                 J. Farkas
Intended status: Standards Track                                Ericsson
Expires: April 29, 2020                                         A. Malis
                                                             Independent
                                                               S. Bryant
                                                  Futurewei Technologies
                                                        October 27, 2019

 DetNet Data Plane: IP over IEEE 802.1 Time Sensitive Networking (TSN)
                    draft-ietf-detnet-ip-over-tsn-01

Abstract

   This document specifies the Deterministic Networking IP data plane
   when operating over a TSN sub-network.

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
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   This Internet-Draft will expire on April 29, 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
   publication of this document.  Please review these documents
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Varga, et al.            Expires April 29, 2020                 [Page 1]
Internet-Draft             DetNet IP over TSN               October 2019

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

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
     2.1.  Terms Used In This Document . . . . . . . . . . . . . . .   3
     2.2.  Abbreviations . . . . . . . . . . . . . . . . . . . . . .   3
     2.3.  Requirements Language . . . . . . . . . . . . . . . . . .   3
   3.  DetNet IP Data Plane Overview . . . . . . . . . . . . . . . .   3
   4.  DetNet IP Flows over an IEEE 802.1   TSN sub-network  . . . .   5
     4.1.  Functions for DetNet Flow to TSN Stream Mapping . . . . .   6
     4.2.  TSN requirements of IP DetNet nodes . . . . . . . . . . .   6
     4.3.  Service protection within the TSN sub-network . . . . . .   8
     4.4.  Aggregation during DetNet flow to TSN Stream mapping  . .   8
   5.  Management and Control Implications . . . . . . . . . . . . .   8
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .   9
   7.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  10
   8.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  10
   9.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  10
     9.1.  Normative references  . . . . . . . . . . . . . . . . . .  10
     9.2.  Informative references  . . . . . . . . . . . . . . . . .  10
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  12

1.  Introduction

   Deterministic Networking (DetNet) is a service that can be offered by
   a network to DetNet flows.  DetNet provides these flows extremely low
   packet loss rates and assured maximum end-to-end delivery latency.
   General background and concepts of DetNet can be found in the DetNet
   Architecture [I-D.ietf-detnet-architecture].

   [I-D.ietf-detnet-ip] specifies the DetNet data plane operation for IP
   hosts and routers that provide DetNet service to IP encapsulated
   data.  This document focuses on the scenario where DetNet IP nodes
   are interconnected by a TSN sub-network.

   The DetNet Architecture decomposes the DetNet related data plane
   functions into two sub-layers: a service sub-layer and a forwarding
   sub-layer.  The service sub-layer is used to provide DetNet service
   protection and reordering.  The forwarding sub-layer is used to
   provides congestion protection (low loss, assured latency, and
   limited reordering).  As described in [I-D.ietf-detnet-ip] no DetNet
   specific headers are added to support DetNet IP flows, only the
   forwarding sub-layer functions are supported inside the DetNet
   domain.  Service protection can be provided on a per sub-network
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