Internet Area WG R. Kelsey
Internet-Draft Silicon Labs
Intended status: Standards Track February 21, 2013
Expires: August 25, 2013
Mesh Link Establishment
draft-kelsey-intarea-mesh-link-establishment-05
Abstract
This document defines the mesh link establishment (MLE) protocol for
establishing and configuring secure radio links in IEEE 802.15.4
radio mesh networks. MLE extends IEEE 802.15.4 for use in multihop
mesh networks by adding three capabilities: 1) dynamically
configuring and securing radio links, 2) enabling network-wide
changes to radio parameters, and 3) detecting neighboring devices.
MLE operates below the routing layer, insulating it from the details
of configuring, securing, and maintaining individual radio links
within a larger mesh network.
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Kelsey Expires August 25, 2013 [Page 1]
Internet-Draft Mesh Link Establishment February 2013
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1. Requirements Language . . . . . . . . . . . . . . . . . . 3
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 4
3. Applicability . . . . . . . . . . . . . . . . . . . . . . . . 5
4. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4.1. Link Configuration . . . . . . . . . . . . . . . . . . . . 6
4.2. Parameter Dissemination . . . . . . . . . . . . . . . . . 6
4.3. Neighbor Detection . . . . . . . . . . . . . . . . . . . . 7
5. Security Formats . . . . . . . . . . . . . . . . . . . . . . . 8
6. Command Format . . . . . . . . . . . . . . . . . . . . . . . . 9
7. TLV Formats . . . . . . . . . . . . . . . . . . . . . . . . . 10
7.1. Source Address . . . . . . . . . . . . . . . . . . . . . . 10
7.2. Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
7.3. Timeout . . . . . . . . . . . . . . . . . . . . . . . . . 10
7.4. Challenge . . . . . . . . . . . . . . . . . . . . . . . . 11
7.5. Response . . . . . . . . . . . . . . . . . . . . . . . . . 11
7.6. Link-layer Frame Counter . . . . . . . . . . . . . . . . . 11
7.7. Link Quality . . . . . . . . . . . . . . . . . . . . . . . 11
7.8. Network Parameter . . . . . . . . . . . . . . . . . . . . 13
7.9. MLE Frame Counter . . . . . . . . . . . . . . . . . . . . 14
8. Message transmission . . . . . . . . . . . . . . . . . . . . . 15
9. Processing of incoming messages . . . . . . . . . . . . . . . 17
10. Link Configuration . . . . . . . . . . . . . . . . . . . . . . 18
11. Parameter Dissemination . . . . . . . . . . . . . . . . . . . 19
12. Neighbor Detection . . . . . . . . . . . . . . . . . . . . . . 20
13. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 21
14. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 22
14.1. Security Suites . . . . . . . . . . . . . . . . . . . . . 22
14.2. Command Types . . . . . . . . . . . . . . . . . . . . . . 22
14.3. TLV Types . . . . . . . . . . . . . . . . . . . . . . . . 22
14.4. Network Parameters . . . . . . . . . . . . . . . . . . . . 23
15. Security Considerations . . . . . . . . . . . . . . . . . . . 24
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