DetNet Data Plane: MPLS
draft-ietf-detnet-mpls-13
DetNet B. Varga, Ed.
Internet-Draft J. Farkas
Intended status: Standards Track Ericsson
Expires: April 14, 2021 L. Berger
LabN Consulting, L.L.C.
A. Malis
Malis Consulting
S. Bryant
Futurewei Technologies
J. Korhonen
October 11, 2020
DetNet Data Plane: MPLS
draft-ietf-detnet-mpls-13
Abstract
This document specifies the Deterministic Networking data plane when
operating over an MPLS Packet Switched Network. It leverages
existing pseudowire (PW) encapsulations and MPLS Traffic Engineering
encapsulations and mechanisms. This document builds on the DetNet
Architecture and Data Plane Framework.
Status of This Memo
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provisions of BCP 78 and BCP 79.
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material or to cite them other than as "work in progress."
This Internet-Draft will expire on April 14, 2021.
Copyright Notice
Copyright (c) 2020 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
Varga, et al. Expires April 14, 2021 [Page 1]
Internet-Draft DetNet MPLS October 2020
(https://trustee.ietf.org/license-info) in effect on the date of
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1. Terms Used in This Document . . . . . . . . . . . . . . . 4
2.2. Abbreviations . . . . . . . . . . . . . . . . . . . . . . 4
2.3. Requirements Language . . . . . . . . . . . . . . . . . . 5
3. DetNet MPLS Data Plane Overview . . . . . . . . . . . . . . . 5
3.1. Layers of DetNet Data Plane . . . . . . . . . . . . . . . 5
3.2. DetNet MPLS Data Plane Scenarios . . . . . . . . . . . . 6
4. MPLS-Based DetNet Data Plane Solution . . . . . . . . . . . . 8
4.1. DetNet Over MPLS Encapsulation Components . . . . . . . . 8
4.2. MPLS Data Plane Encapsulation . . . . . . . . . . . . . . 9
4.2.1. DetNet Control Word and the DetNet Sequence Number . 10
4.2.2. S-Labels . . . . . . . . . . . . . . . . . . . . . . 12
4.2.3. F-Labels . . . . . . . . . . . . . . . . . . . . . . 15
4.3. OAM Indication . . . . . . . . . . . . . . . . . . . . . 17
4.4. Flow Aggregation . . . . . . . . . . . . . . . . . . . . 18
4.4.1. Aggregation Via LSP Hierarchy . . . . . . . . . . . . 18
4.4.2. Aggregating DetNet Flows as a new DetNet flow . . . . 19
4.5. Service Sub-Layer Considerations . . . . . . . . . . . . 20
4.5.1. Edge Node Processing . . . . . . . . . . . . . . . . 20
4.5.2. Relay Node Processing . . . . . . . . . . . . . . . . 20
4.6. Forwarding Sub-Layer Considerations . . . . . . . . . . . 21
4.6.1. Class of Service . . . . . . . . . . . . . . . . . . 21
4.6.2. Quality of Service . . . . . . . . . . . . . . . . . 21
5. Management and Control Information Summary . . . . . . . . . 22
5.1. Service Sub-Layer Information Summary . . . . . . . . . . 23
5.1.1. Service Aggregation Information Summary . . . . . . . 24
5.2. Forwarding Sub-Layer Information Summary . . . . . . . . 24
6. Security Considerations . . . . . . . . . . . . . . . . . . . 25
7. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 26
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