Industrial Use Cases for In-Network Computing
draft-kunze-coin-industrial-use-cases-01

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COIN                                                            I. Kunze
Internet-Draft                                                 K. Wehrle
Intended status: Informational                    RWTH Aachen University
Expires: May 7, 2020                                   November 04, 2019

             Industrial Use Cases for In-Network Computing
                draft-kunze-coin-industrial-use-cases-01

Abstract

   Cyber-physical systems and the Industrial Internet of Things are
   characterized by diverse sets of requirements which can hardly be
   satisfied using standard networking technology.  One example are
   latency-critical computations which become increasingly complex and
   are consequently outsourced to more powerful cloud platforms for
   feasibility reasons.  The intrinsic physical propagation delay to
   these remote sites can, however, already be too high for given
   requirements.  The challenge is to develop techniques that bring
   together these requirements.  Utilizing available computational
   capabilities within the network can be a solution to this challenge
   which makes in-network computing concepts a promising starting point.
   This document discusses select industrial use cases to demonstrate
   how in-network computing concepts can be applied to the industrial
   domain and to point out essential requirements of industrial
   applications.

Status of This Memo

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   This Internet-Draft will expire on May 7, 2020.

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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
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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  In-Network Control / Time-sensitive applications  . . . . . .   4
     2.1.  Characterization and Requirements . . . . . . . . . . . .   5
       2.1.1.  Approaches  . . . . . . . . . . . . . . . . . . . . .   5
   3.  Large Volume Applications/ Traffic Filtering  . . . . . . . .   6
     3.1.  Characterization and Requirements . . . . . . . . . . . .   6
     3.2.  Approaches  . . . . . . . . . . . . . . . . . . . . . . .   7
       3.2.1.  Traffic Filters . . . . . . . . . . . . . . . . . . .   7
       3.2.2.  In-Network (Pre-)Processing . . . . . . . . . . . . .   8
   4.  Industrial Safety (Dead Man's Switch) . . . . . . . . . . . .   9
     4.1.  Characterization and Requirements . . . . . . . . . . . .   9
       4.1.1.  Approaches  . . . . . . . . . . . . . . . . . . . . .  10
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .  10
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  11
   7.  Conclusion  . . . . . . . . . . . . . . . . . . . . . . . . .  11
   8.  Informative References  . . . . . . . . . . . . . . . . . . .  11
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  12

1.  Introduction

   The Internet is based on a best-effort network that provides limited
   guarantees regarding the timely and successful transmission of
   packets.  This design-choice is suitable for general Internet-based
   applications, but specialized industrial applications demand a number
   of strict performance guarantees, e.g., regarding real-time
   capabilities, which cannot be provided over regular best-effort
   networks.

   Enhancements to the standard Ethernet such as Time-Sensitive-
   Networking [TSN] try to achieve the requirements on the link layer by
   statically reserving shares of the bandwidth.  These concepts are

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