DetNet Data Plane Encapsulation
draft-ietf-detnet-dp-sol-04
DetNet J. Korhonen, Ed.
Internet-Draft Nordic
Intended status: Standards Track L. Andersson
Expires: September 23, 2018 Y. Jiang
N. Finn
Huawei
B. Varga
J. Farkas
Ericsson
CJ. Bernardos
UC3M
T. Mizrahi
Marvell
L. Berger
LabN
March 22, 2018
DetNet Data Plane Encapsulation
draft-ietf-detnet-dp-sol-04
Abstract
This document specifies Deterministic Networking data plane
encapsulation solutions. The described data plane solutions can be
applied over either IP or 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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Task Force (IETF). Note that other groups may also distribute
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material or to cite them other than as "work in progress."
This Internet-Draft will expire on September 23, 2018.
Korhonen, et al. Expires September 23, 2018 [Page 1]
Internet-Draft DetNet Data Plane Encapsulation March 2018
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1. Terms used in this document . . . . . . . . . . . . . . . 4
2.2. Abbreviations . . . . . . . . . . . . . . . . . . . . . . 5
3. Requirements language . . . . . . . . . . . . . . . . . . . . 6
4. DetNet data plane overview . . . . . . . . . . . . . . . . . 6
4.1. DetNet data plane encapsulation requirements . . . . . . 8
4.2. Packet replication and elimination considerations . . . . 10
4.3. Packet reordering considerations . . . . . . . . . . . . 10
5. DetNet encapsulation . . . . . . . . . . . . . . . . . . . . 10
5.1. End-system specific considerations . . . . . . . . . . . 10
5.2. DetNet domain specific considerations . . . . . . . . . . 12
5.2.1. DetNet Bridging Service . . . . . . . . . . . . . . . 13
5.2.2. DetNet Routing Service . . . . . . . . . . . . . . . 14
5.3. DetNet Inter-Working Function (DN-IWF) . . . . . . . . . 17
5.3.1. Networks with multiple technology segments . . . . . 17
5.3.2. DN-IWF related considerations . . . . . . . . . . . . 18
6. MPLS-based DetNet data plane solution . . . . . . . . . . . . 19
6.1. DetNet specific packet fields . . . . . . . . . . . . . . 19
6.2. Data plane encapsulation . . . . . . . . . . . . . . . . 19
6.3. DetNet control word . . . . . . . . . . . . . . . . . . . 20
6.4. Flow identification . . . . . . . . . . . . . . . . . . . 21
6.5. Service layer considerations . . . . . . . . . . . . . . 21
6.5.1. Edge node processing . . . . . . . . . . . . . . . . 22
6.5.2. Relay node processing . . . . . . . . . . . . . . . . 23
6.5.3. End system processing . . . . . . . . . . . . . . . . 25
6.6. Transport node considerations . . . . . . . . . . . . . . 25
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