observing nodes behavior in IoT validation platforms
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1 a framework for observing nodes behavior in IoT validation platforms Orange Labs Quentin Lampin, Dominique Barthel June 2015, Ecole d été Rescom 2015
2 Agenda part 1 part 2 part 3 part 4 IoT protocol validation platforms an observability toolchain some results the way forward 2 Orange Labs OLPS/BIZZ/MIS IoT platform observability June 2015
3 IoT networks protocol validation, a look back Orange Labs working on WSN protocols since 2002 ARESA1 demo (2008) 86 nodes, full source code, in-band limited monitoring ARESA1 demo (2009) 56 nodes, Coronis black-box radio, in-band limited monitoring Dec 2013 OLRE / ARESA2 demo a 82-node fully observable platform (SensOrLabs) out of band monitoring, systemic approach to observability Coronis partnership ARESA ARESA2/ SensOrLabs SensOrLab v Senslab IoT-Lab 3 Orange Labs OLPS/BIZZ/MIS IoT platform observability June 2015
4 the SensOrLabs platform ARESA2 largely Senslab-inspired, but OrangeLabs intranet rewrote infrastructure software redesigned gateway board assembly redesigned power monitoring board hosted Elster/Coronis Excelyo nodes 82 nodes at Orange Labs Meylan plugged into any site Ethernet socket 82 devices 4 Orange Labs OLPS/BIZZ/MIS IoT platform observability June 2015
5 an observability toolchain a major hand-holding effort open node code instrumentation observability message compression power monitoring processed similarly event timestamping PCAP encapsulation flow multiplexing Wireshark as a general event browsing and display tool Gateway SensOrLabs server power monitor. Open Node Timestamping PCAP Muxing dissectors Wireshark 5 Orange Labs OLPS/BIZZ/MIS IoT platform observability June 2015
6 an underlying model for the network nodes, entities 6 Orange Labs OLPS/BIZZ/MIS IoT platform observability June 2015
7 an underlying model for the network (2) nodes, entities links packets already applied to very different comm. stacks 7 Orange Labs OLPS/BIZZ/MIS IoT platform observability June 2015
8 a taxonomy of observability events 8 Orange Labs OLPS/BIZZ/MIS IoT platform observability June 2015
9 a taxonomy of observability events (2) Wireshark dissectors remain totally generic assuming the network model 9 Orange Labs OLPS/BIZZ/MIS IoT platform observability June 2015
10 Staged timestamping and PCAP encapsulation log time spent in event buffer in open node clock ticks compute serialization time insert (adjusted) absolute time Open Node (relative time) Gateway (absolute time) NTP serial event Timestamping restore platform-wide time monotonicity SensOrLabs server Reordering Muxing 10 Orange Labs OLPS/BIZZ/MIS IoT platform observability June 2015
11 Wireshark output 11 Orange Labs OLPS/BIZZ/MIS IoT platform observability June 2015
12 Orange Labs Network visualizer 12 Orange Labs OLPS/BIZZ/MIS IoT platform observability June 2015
13 The way forward (1) Write observability event format specifications Make these specifications public Submit associated Wireshark dissectors for commit Provide Open Source observability libraries OpenWSN, Contiki, TinyOS, RIOT, FreeRTOS might use a little help on this Actually instrument some stacks OpenWSN Contiki LoRaWAN 13 Orange Labs OLPS/BIZZ/MIS IoT platform observability June 2015
14 The way forward (2) Version 2 of SensOrLab standard open node interface more generic gateway board (Raspberry PI2) GPS synchronization, enhanced timestamping/reordering improved current sensing board (optional) 14 Orange Labs OLPS/BIZZ/MIS IoT platform observability June 2015
15 The way forward (3) Apply observability techniques to in-band monitoring research completeness/cost trade-off monitoring info compression susceptibility to packet loss blend into existing protocols 15 Orange Labs OLPS/BIZZ/MIS IoT platform observability June 2015
16 thank you
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