Table of Contents

List of Figures

1. USP Agent and Controller Architecture
2. Receiving a X.509 Certificate
3. Example: USP Request/Response over the CoAP MTP
4. WebSocket Session Handshake
5. USP Request using a WebSocket Session
6. USP over STOMP Architecture
7. USP over MQTT Architecture
8. MQTT Packets
9. Processing of Received USP Records
10. E2E Segmentation and Reassembly
11. TLS Session Handshake
12. A successful request/response sequence
13. A failed request/response sequence
14. Operate Message Flow for Synchronous Operations
15. Operate Message Flow for Asynchronous Operations
16. Receiving a USP Record
17. USP Record without USP Layer Secure Message Exchange
18. Sending a USP Record
19. Checking a Certificate
20. Determining the Role
21. Trusted Broker with Received Record
22. Trusted Broker Sending a Record
23. Deployment Unit State Diagram
24. Execution Unit State Diagram
25. Possible Multi-Execution Environment Implementation
26. Example of MTP Proxy in LAN with WAN Controller
27. CoAP-STOMP MTP Proxy Example Flow
28. IoT Data Model
29. IoT individual device models
30. IoT proxied device model
31. IoT threshold trigger sensitivity
32. IoT threshold trigger hold time
33. IoT threshold trigger rest time
34. IoT threshold trigger minimum duration

List of Tables

1. Proxy Building Block Functions
2. Possible MTP Proxy Methods

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Acknowledgments

The following individuals are being acknowledged for their efforts in the testing and development of this specification.