DetNet Data Plane: MPLS over IEEE 802.1 Time Sensitive Networking (TSN)
draft-ietf-detnet-mpls-over-tsn-01
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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: MPLS over IEEE 802.1 Time Sensitive Networking (TSN)
draft-ietf-detnet-mpls-over-tsn-01
Abstract
This document specifies the Deterministic Networking MPLS 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
Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet-
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 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
Provisions Relating to IETF Documents
(https://trustee.ietf.org/license-info) in effect on the date of
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
Varga, et al. Expires April 29, 2020 [Page 1]
Internet-Draft DetNet MPLS 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 . . . . . . . . . . . . . . . . . . 4
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 . . . . . . . . . . . . . . . . . . . 11
7. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 11
8. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 11
9. References . . . . . . . . . . . . . . . . . . . . . . . . . 11
9.1. Normative References . . . . . . . . . . . . . . . . . . 11
9.2. Informative References . . . . . . . . . . . . . . . . . 11
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 13
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
[I-D.ietf-detnet-architecture].
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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