Extensions to enable wireless reliability and availability in multi- access edge deployments
draft-bernardos-raw-mec-01
RAW WG CJ. Bernardos
Internet-Draft UC3M
Intended status: Standards Track A. Mourad
Expires: July 22, 2021 InterDigital
January 18, 2021
Extensions to enable wireless reliability and availability in multi-
access edge deployments
draft-bernardos-raw-mec-01
Abstract
There are several scenarios involving multi-hop heterogeneous
wireless networks requiring reliable and available features combined
with multi-access edge computing, such as Industry 4.0. This
document describes solutions integrating IETF RAW and ETSI MEC,
fostering discussion about extensions at both IETF and ETSI MEC to
better support these scenarios.
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This Internet-Draft will expire on July 22, 2021.
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Internet-Draft RAW and MEC integration January 2021
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 5
3. Problem Statement . . . . . . . . . . . . . . . . . . . . . . 5
4. RAW and MEC integration . . . . . . . . . . . . . . . . . . . 7
4.1. MEC app request for RAW . . . . . . . . . . . . . . . . . 8
4.2. RAW OAM triggering MEC app migration . . . . . . . . . . 11
4.3. MEC OAM for RAW updates . . . . . . . . . . . . . . . . . 13
5. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 15
6. Security Considerations . . . . . . . . . . . . . . . . . . . 15
7. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 15
8. Informative References . . . . . . . . . . . . . . . . . . . 15
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 16
1. Introduction
Wireless operates on a shared medium, and transmissions cannot be
fully deterministic due to uncontrolled interferences, including
self-induced multipath fading. RAW (Reliable and Available Wireless)
is an effort to provide Deterministic Networking on across a path
that include a wireless interface. RAW provides for high reliability
and availability for IP connectivity over a wireless medium. The
wireless medium presents significant challenges to achieve
deterministic properties such as low packet error rate, bounded
consecutive losses, and bounded latency. RAW extends the DetNet
Working Group concepts to provide for high reliability and
availability for an IP network utilizing scheduled wireless segments
and other media, e.g., frequency/time-sharing physical media
resources with stochastic traffic: IEEE Std. 802.15.4 timeslotted
channel hopping (TSCH), 3GPP 5G ultra-reliable low latency
communications (URLLC), IEEE 802.11ax/be, and L-band Digital
Aeronautical Communications System (LDACS), etc. Similar to DetNet,
RAW technologies aim at staying abstract to the radio layers
underneath, addressing the Layer 3 aspects in support of applications
requiring high reliability and availability.
As introduced in [I-D.pthubert-raw-architecture], RAW separates the
path computation time scale at which a complex path is recomputed
from the path selection time scale at which the forwarding decision
is taken for one or a few packets. RAW operates at the path
selection time scale. The RAW problem is to decide, amongst the
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