DetNet MPLS Data Plane Encapsulation
draft-ietf-detnet-dp-sol-mpls-01

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Last updated 2018-10-21
Replaces draft-ietf-detnet-dp-sol
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DetNet                                                  J. Korhonen, Ed.
Internet-Draft
Intended status: Standards Track                           B. Varga, Ed.
Expires: April 24, 2019                                         Ericsson
                                                        October 21, 2018

                  DetNet MPLS Data Plane Encapsulation
                    draft-ietf-detnet-dp-sol-mpls-01

Abstract

   This document specifies Deterministic Networking data plane
   encapsulation solutions.  The described data plane solutions is
   applied over an MPLS Packet Switched Networks.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

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   This Internet-Draft will expire on April 24, 2019.

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   Copyright (c) 2018 IETF Trust and the persons identified as the
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Korhonen & Varga         Expires April 24, 2019                 [Page 1]
Internet-Draft           DetNet MPLS Data Plane             October 2018

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   4
     2.1.  Terms used in this document . . . . . . . . . . . . . . .   4
     2.2.  Abbreviations . . . . . . . . . . . . . . . . . . . . . .   4
   3.  Requirements language . . . . . . . . . . . . . . . . . . . .   6
   4.  MPLS DetNet data plane overview . . . . . . . . . . . . . . .   6
     4.1.  Layers of DetNet data plane . . . . . . . . . . . . . . .   6
     4.2.  MPLS DetNet data plane scenarios  . . . . . . . . . . . .   7
     4.3.  Packet flow example (service protection)  . . . . . . . .  11
   5.  DetNet MPLS Data Considerations . . . . . . . . . . . . . . .  12
     5.1.  End-system specific considerations  . . . . . . . . . . .  13
     5.2.  DetNet domain specific considerations . . . . . . . . . .  15
       5.2.1.  DetNet Layer Two Service  . . . . . . . . . . . . . .  16
       5.2.2.  DetNet Routing Service (IP over MPLS) . . . . . . . .  17
     5.3.  DetNet Inter-Working Function (DN-IWF)  . . . . . . . . .  18
       5.3.1.  Networks with multiple technology segments  . . . . .  18
       5.3.2.  DN-IWF related considerations . . . . . . . . . . . .  19
   6.  MPLS-based DetNet data plane solution . . . . . . . . . . . .  20
     6.1.  DetNet over MPLS Encapsulation Components . . . . . . . .  20
     6.2.  MPLS data plane encapsulation . . . . . . . . . . . . . .  22
     6.3.  DetNet control word . . . . . . . . . . . . . . . . . . .  23
     6.4.  Flow Identification . . . . . . . . . . . . . . . . . . .  24
     6.5.  Indication of the DetNet Payload Type . . . . . . . . . .  24
     6.6.  OAM Indication  . . . . . . . . . . . . . . . . . . . . .  25
     6.7.  Flow Aggregation  . . . . . . . . . . . . . . . . . . . .  25
       6.7.1.  Aggregation at the LSP  . . . . . . . . . . . . . . .  26
       6.7.2.  Aggregating DetNet flows as a new DetNet flow . . . .  26
       6.7.3.  Simple Aggregation at the DetNet layer  . . . . . . .  27
     6.8.  Service Layer Considerations  . . . . . . . . . . . . . .  28
       6.8.1.  Edge node processing  . . . . . . . . . . . . . . . .  28
       6.8.2.  Relay node processing . . . . . . . . . . . . . . . .  29
     6.9.  Other DetNet data plane considerations  . . . . . . . . .  30
       6.9.1.  Class of Service  . . . . . . . . . . . . . . . . . .  30
       6.9.2.  Quality of Service  . . . . . . . . . . . . . . . . .  31
       6.9.3.  Cross-DetNet flow resource aggregation  . . . . . . .  32
       6.9.4.  Layer 2 addressing and QoS Considerations . . . . . .  33
       6.9.5.  Time Synchronization  . . . . . . . . . . . . . . . .  33
   7.  Management and control considerations . . . . . . . . . . . .  34
     7.1.  MPLS-based data plane . . . . . . . . . . . . . . . . . .  34
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