Industrial Routing Requirements in Low-Power and Lossy Networks
RFC 5673
Network Working Group K. Pister, Ed.
Request for Comments: 5673 Dust Networks
Category: Informational P. Thubert, Ed.
Cisco Systems
S. Dwars
Shell
T. Phinney
Consultant
October 2009
Industrial Routing Requirements in Low-Power and Lossy Networks
Abstract
The wide deployment of lower-cost wireless devices will significantly
improve the productivity and safety of industrial plants while
increasing the efficiency of plant workers by extending the
information set available about the plant operations. The aim of
this document is to analyze the functional requirements for a routing
protocol used in industrial Low-power and Lossy Networks (LLNs) of
field devices.
Status of This Memo
This memo provides information for the Internet community. It does
not specify an Internet standard of any kind. Distribution of this
memo is unlimited.
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Pister, et al. Informational [Page 1]
RFC 5673 Industrial Routing Reqs in LLNs October 2009
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1. Requirements Language . . . . . . . . . . . . . . . . . . 3
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 4
3. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3.1. Applications and Traffic Patterns . . . . . . . . . . . . 5
3.2. Network Topology of Industrial Applications . . . . . . . 9
3.2.1. The Physical Topology . . . . . . . . . . . . . . . . 10
3.2.2. Logical Topologies . . . . . . . . . . . . . . . . . . 12
4. Requirements Related to Traffic Characteristics . . . . . . . 13
4.1. Service Requirements . . . . . . . . . . . . . . . . . . . 14
4.2. Configurable Application Requirement . . . . . . . . . . . 15
4.3. Different Routes for Different Flows . . . . . . . . . . . 15
5. Reliability Requirements . . . . . . . . . . . . . . . . . . . 16
6. Device-Aware Routing Requirements . . . . . . . . . . . . . . 18
7. Broadcast/Multicast Requirements . . . . . . . . . . . . . . . 19
8. Protocol Performance Requirements . . . . . . . . . . . . . . 20
9. Mobility Requirements . . . . . . . . . . . . . . . . . . . . 21
10. Manageability Requirements . . . . . . . . . . . . . . . . . . 21
11. Antagonistic Requirements . . . . . . . . . . . . . . . . . . 22
12. Security Considerations . . . . . . . . . . . . . . . . . . . 23
13. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 25
14. References . . . . . . . . . . . . . . . . . . . . . . . . . . 25
14.1. Normative References . . . . . . . . . . . . . . . . . . . 25
14.2. Informative References . . . . . . . . . . . . . . . . . . 25
Pister, et al. Informational [Page 2]
RFC 5673 Industrial Routing Reqs in LLNs October 2009
1. Introduction
Information Technology (IT) is already, and increasingly will be
applied to industrial Control Technology (CT) in application areas
where those IT technologies can be constrained sufficiently by
Service Level Agreements (SLA) or other modest changes that they are
able to meet the operational needs of industrial CT. When that
happens, the CT benefits from the large intellectual, experiential,
and training investment that has already occurred in those IT
precursors. One can conclude that future reuse of additional IT
protocols for industrial CT will continue to occur due to the
significant intellectual, experiential, and training economies that
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