DetNet Data Plane Framework
draft-ietf-detnet-data-plane-framework-00

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Last updated 2019-05-06
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DetNet                                                     B. Varga, Ed.
Internet-Draft                                                 J. Farkas
Intended status: Informational                                  Ericsson
Expires: November 6, 2019                                      L. Berger
                                                                D. Fedyk
                                                 LabN Consulting, L.L.C.
                                                                A. Malis
                                                               S. Bryant
                                                     Huawei Technologies
                                                             J. Korhonen
                                                             May 5, 2019

                      DetNet Data Plane Framework
               draft-ietf-detnet-data-plane-framework-00

Abstract

   This document provides an overall framework for the Deterministic
   Networking data plane.  It covers concepts and considerations that
   are generally common to any Deterministic Networking data plane
   specification.

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
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   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 November 6, 2019.

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
   Provisions Relating to IETF Documents
   (https://trustee.ietf.org/license-info) in effect on the date of

Varga, et al.           Expires November 6, 2019                [Page 1]
Internet-Draft         DetNet Data Plane Framework              May 2019

   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
   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  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   4
     2.1.  Terms Used in This Document . . . . . . . . . . . . . . .   4
     2.2.  Abbreviations . . . . . . . . . . . . . . . . . . . . . .   4
   3.  DetNet Data Plane Overview  . . . . . . . . . . . . . . . . .   5
     3.1.  Data Plane Characteristics  . . . . . . . . . . . . . . .   6
     3.2.  Encapsulation . . . . . . . . . . . . . . . . . . . . . .   7
     3.3.  Metadata  . . . . . . . . . . . . . . . . . . . . . . . .   7
     3.4.  DetNet IP Data Plane  . . . . . . . . . . . . . . . . . .   8
     3.5.  DetNet MPLS Data Plane  . . . . . . . . . . . . . . . . .   8
     3.6.  Further DetNet Data Plane Considerations  . . . . . . . .   9
       3.6.1.  Service Protection  . . . . . . . . . . . . . . . . .  11
       3.6.2.  Aggregation Considerations  . . . . . . . . . . . . .  13
       3.6.3.  End-System Specific Considerations  . . . . . . . . .  14
       3.6.4.  Sub-Network Considerations  . . . . . . . . . . . . .  14
   4.  Controller Plane (Management and Control)
       Considerations  . . . . . . . . . . . . . . . . . . . . . . .  15
     4.1.  DetNet Controller Plane Requirements  . . . . . . . . . .  15
     4.2.  Generic Controller Plane Considerations . . . . . . . . .  16
       4.2.1.  Flow Aggregation Control  . . . . . . . . . . . . . .  17
       4.2.2.  Explicit Routes . . . . . . . . . . . . . . . . . . .  18
       4.2.3.  Contention Loss and Jitter Reduction  . . . . . . . .  19
       4.2.4.  Bidirectional Traffic . . . . . . . . . . . . . . . .  19
     4.3.  IP-Specific Controller Plane Considerations . . . . . . .  20
       4.3.1.  Flow Identification and Aggregation . . . . . . . . .  20
     4.4.  MPLS-Specific Controller Plane Considerations . . . . . .  20
       4.4.1.  S-Label and F-Label Assignment and Distribution . . .  20
     4.5.  Packet Replication, Elimination, and Ordering (PREOF) . .  22
     4.6.  Contention Loss and Jitter Reduction  . . . . . . . . . .  22
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .  22
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  23
   7.  Contributors  . . . . . . . . . . . . . . . . . . . . . . . .  23
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