DetNet Data Plane: MPLS over IEEE 802.1 Time Sensitive Networking (TSN)
draft-ietf-detnet-mpls-over-tsn-02
DetNet B. Varga, Ed.
Internet-Draft J. Farkas
Intended status: Standards Track Ericsson
Expires: September 7, 2020 A. Malis
Independent
S. Bryant
Futurewei Technologies
March 6, 2020
DetNet Data Plane: MPLS over IEEE 802.1 Time Sensitive Networking (TSN)
draft-ietf-detnet-mpls-over-tsn-02
Abstract
This document specifies the Deterministic Networking MPLS data plane
when operating over a TSN sub-network.
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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 MPLS Data Plane Overview . . . . . . . . . . . . . . . 4
4. DetNet MPLS Operation Over IEEE 802.1 TSN Sub-Networks . . . 5
4.1. Functions for DetNet Flow to TSN Stream Mapping . . . . . 7
4.2. TSN requirements of MPLS DetNet nodes . . . . . . . . . . 7
4.3. Service protection within the TSN sub-network . . . . . . 9
4.4. Aggregation during DetNet flow to TSN Stream mapping . . 9
5. Management and Control Implications . . . . . . . . . . . . . 9
6. Security Considerations . . . . . . . . . . . . . . . . . . . 10
7. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 11
8. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 11
9. References . . . . . . . . . . . . . . . . . . . . . . . . . 11
9.1. Normative References . . . . . . . . . . . . . . . . . . 11
9.2. Informative References . . . . . . . . . . . . . . . . . 11
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 with a low
packet loss rates and assured maximum end-to-end delivery latency.
General background and concepts of DetNet can be found in [RFC8655].
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) leveraging MPLS Traffic Engineering mechanisms.
[I-D.ietf-detnet-mpls] specifies the DetNet data plane operation for
MPLS-based Packet Switched Network (PSN). MPLS encapsulated DetNet
flows can be carried over network technologies that can provide the
DetNet required level of service. This document focuses on the
scenario where MPLS (DetNet) nodes are interconnected by a IEEE 802.1
TSN sub-network.
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