FRuIT: Raspberry Pi clusters and other adventures in networking research, by Phil Basford
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A presentation from Networkshop46.
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FRuIT: Raspberry Pi clusters and other adventures in networking research, by Phil Basford
- 1. FRµIT: Raspberry Pi clusters and other adventures in networking research Phil Basford, University of Southampton
- 2. >FRµIT Project >Developing a distributed Raspberry Pi Cluster >Mountain Sensing >IPv6 in the Scottish Highlands >Glacsweb >Sensor Networks on/in Icelandic Glaciers >Erica the Rhino >IPv6 in a cyber-rhino Outline
- 3. >Distributed cluster of Raspberry Pis >Aiming for around 10,000 nodes >Testbed to enable Researchers to experiment without having to build their own cluster FRµIT Project https://fruit-testbed.org/
- 6. >Alpine Linux >Small OS build >Read only file-system >Running containers for applications >Docker >Singularity >Investigating using Jisc Assent service (jisc.ac.uk/assent) for identity management Software Architecture
- 7. Network Architecture L A N 9 5 1 4 - J Z X ® 4R7 4R7 BCM2836RIF GB BROADC OM Azure L A N 9 5 1 4 - J Z X ® 4R7 4R7 BCM2836RIF GB BROADC OM L A N 9 5 1 4 - J Z X ® 4R7 4R7 BCM2836RIF GB BROADC OM Raspberry Pi Symbol by https://github.com/rrobinet
- 10. >Nodes in limited bandwidth scenarios >Differential updates >Investigating peer to peer methods Update Mechanism
- 12. >6LoWPAN (IPv6 Low-power Wireless Personal Area Networks) >COAP (Constrained Application Protocol) >3km and multiple 1km radio links >Direct access to nodes from office desk Mountain Sensing Network
- 13. Mountain Sensing Network Topology Blue = Gateway Red = Default Route Dashed = Intermittent link
- 14. >Mini-ITX PC >Satellite internet connection >No native IPv6 >Uses IPv6 tunnel >Initially 3rd party (until they shutdown) >Now running an IPv6 tunnel server at the University (OpenVPN based) >Also maintains SSH connections to various servers with remote SSH port forward back to gateway Mountain Sensing Backhaul
- 17. >Limited number of servers in University had SSH ports available >Various single points of failure in departmental network >2 possible upload targets >Offsite server (Primary) >Department server (Secondary) Glacsweb Network Challenges
- 18. Erica the Rhino https://www.ericatherhino.org/
- 19. Erica Networking Dashed = VPN Dotted = WiFi
- 20. >Wide variety of research projects with different demands from network resources >Often doing something weird! >Sometimes require multiple redundant systems >Used IPv6 heavily >FREEPOST PICYCLE Summary
- 21. Except where otherwise noted, this work is licensed under CC-BY-NC-ND. Dr Philip J. Basford Senior research fellow P.J.Basford@soton.ac.uk I have been… B176/5001, Boldrewood Campus, SO16 7QF T 023 8059 5449
- 22. Thank you