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❲❛❧❚✿ ❆ ❘❡♣r♦❞✉❝✐❜❧❡ ❘❡s❡❛r❝❤ P❧❛t❢♦r♠ ❢♦r ◆❡t✇♦r❦s ❛♥❞ ❉✐str✐❜✉t❡❞ ❉❛t❛ ❊t✐❡♥♥❡ ❉✉❜❧é ✭▲■● ✴ ❈◆❘❙✮✱ ❋r❛♥❝❦ ❘♦✉ss❡❛✉ ✭▲■● ✴ ●r❡♥♦❜❧❡ ■◆P✮ ❛♥❞ ❉r❛❦❦❛r t❡❛♠ ♦❢ ▲■● ❧❛❜ ●r❡♥♦❜❧❡✱ ❋❡❜r✉❛r② ✷✵✷✵

❲❛❧❚ ❢♦r r❡❛❧✳✳✳ ❚❤✐s ✐s ❛ t②♣✐❝❛❧ ✇✐r❡❧❡ss ♥❡t✇♦r❦ ❡①♣❡r✐♠❡♥t✦ ❀✮

❆❣❡♥❞❛ ▼♦t✐✈❛t✐♦♥ ❙❛♠♣❧❡ ✉s❡ ❝❛s❡ ❆r❝❤✐t❡❝t✉r❡ ❲❛❧❚ ✉♥❞❡r t❤❡ ❤♦♦❞ ◆❡✇s✱ ❖♥✲❣♦✐♥❣ ✇♦r❦ ❛♥❞ P❡rs♣❡❝t✐✈❡s

❊①✐st✐♥❣ ♣❧❛t❢♦r♠s ▲❛r❣❡ s❝❛❧❡ t❡st❜❡❞s ✭❡✳❣✳ ■♦❚✲▲❛❜✮ • ▲✐♠✐t❡❞ ❤❛r❞✇❛r❡ ❝❤♦✐❝❡ • ❙t❛t✐❝ ❡♥✈✐r♦♥♠❡♥t ✫ ♥❡t✇♦r❦ t♦♣♦❧♦❣② • ◆♦ ♣❤②s✐❝❛❧ ❛❝❝❡ss ✭❢♦r ❞❡❜✉❣❣✐♥❣✮ • ❇♦♦❦✐♥❣ s②st❡♠ s♦♠❡t✐♠❡s ❝r♦✇❞❡❞ ❍❛♥❞♠❛❞❡ ♣❧❛t❢♦r♠ ✏♦♥ ②♦✉r ♦✇♥ ❞❡s❦✑ • ❉♦❡s ♥♦t s❝❛❧❡ • ■s ❤❛r❞❧② r❡♣r♦❞✉❝✐❜❧❡ ✶

❲❛❧❚ ♣❧❛t❢♦r♠ ♦❜❥❡❝t✐✈❡s ❲❛❧❚ st❛♥❞s ❤❛❧❢✇❛② ❜❡t✇❡❡♥ t❤♦s❡ ✷ ❝❛t❡❣♦r✐❡s✳ ❏✉st ❛s ❛ ❤❛♥❞♠❛❞❡ ♣❧❛t❢♦r♠✱ • ❲❛❧❚ ❝❛♥ ❜❡ ❧✐❣❤t✇❡✐❣❤t ✭❜❛❝❦♣❛❝❦✲❝♦♠♣❛t✐❜❧❡✱ ❢♦r ❛ ❞❡♠♦✮ • ❨♦✉ ❝❛♥ ❜✉✐❧❞ s❡✈❡r❛❧ ✐♥st❛♥❝❡s ♦❢ ❲❛❧❚ • ❨♦✉ ❝❛♥ s❡t ✉♣ ♦♥❡ ♦♥ ②♦✉r ❞❡s❦ ✭❢♦r ❞❡❜✉❣❣✐♥❣✮ • ❨♦✉ ❝❛♥ ❡❛s✐❧② ♠♦✈❡ ♥♦❞❡s ✭❈P❙✱ ✇✐r❡❧❡ss ♥❡t✇♦r❦s✮ ❏✉st ❛s ❛ ❧❛r❣❡✲s❝❛❧❡ ♣❧❛t❢♦r♠✱ • ❨♦✉ ❝❛♥ ♠❛❦❡ ✐t ❜✐❣❣❡r ✭②♦✉ ❝❛♥ ❞❡♣❧♦② ✐t ✐♥ ❛ ❜✉✐❧❞✐♥❣✮ • ■t ✐s ❡❛s② t♦ ✉s❡ ✷

❲❛❧❚ ♣r♦❥❡❝t ♦❜❥❡❝t✐✈❡s ❲❡ ♣r♦✈✐❞❡✿ • ❖♣❡♥ s♦✉r❝❡ ❝♦❞❡ • ■♥st❛❧❧❛t✐♦♥ ✐♠❛❣❡s • ❉♦❝✉♠❡♥t❛t✐♦♥ ✭❤♦✇ t♦ ✐♥st❛❧❧ ❛♥❞ ✉s❡✮ • ❙✉♣♣♦rt ✭✇❛❧t✲✉s❡rs❅✉♥✐✈✲❣r❡♥♦❜❧❡✲❛❧♣❡s✳❢r✮ ❲❡ ❞♦ ♥♦t ♣r♦✈✐❞❡✿ • ❆ ♣✉❜❧✐❝❧② ❛✈❛✐❧❛❜❧❡ ♣❧❛t❢♦r♠ ✭②♦✉ s❤♦✉❧❞ ❜✉✐❧❞ ②♦✉r ♦✇♥✮ ✸

❆❣❡♥❞❛ ▼♦t✐✈❛t✐♦♥ ❙❛♠♣❧❡ ✉s❡ ❝❛s❡ ❆r❝❤✐t❡❝t✉r❡ ❲❛❧❚ ✉♥❞❡r t❤❡ ❤♦♦❞ ◆❡✇s✱ ❖♥✲❣♦✐♥❣ ✇♦r❦ ❛♥❞ P❡rs♣❡❝t✐✈❡s

❙❛♠♣❧❡ ✉s❡ ❝❛s❡ Is it still working with interference? Bob ✹

❙❛♠♣❧❡ ✉s❡ ❝❛s❡ I will test with WalT. Bob John's images WalT image rpi-wi fi Bob's images ✹

❙❛♠♣❧❡ ✉s❡ ❝❛s❡ OS on nodes should support wi fi ... Bob John's images WalT image rpi-wi fi Bob's images ✹

❙❛♠♣❧❡ ✉s❡ ❝❛s❡ > walt image search wifi Bob John's images WalT image rpi-wi fi Bob's images ✹

❙❛♠♣❧❡ ✉s❡ ❝❛s❡ > walt image search wifi hub:john/rpi-wifi > Bob John's images WalT image rpi-wi fi Bob's images ✹

❙❛♠♣❧❡ ✉s❡ ❝❛s❡ rpi-wi fi ... An image of John... > walt image search wifi Let's start from this! hub:john/rpi-wifi > Bob John's images WalT image rpi-wi fi Bob's images ✹

❙❛♠♣❧❡ ✉s❡ ❝❛s❡ > walt image search wifi hub:john/rpi-wifi > walt image clone hub:john/rpi-wifi Bob John's images WalT image rpi-wi fi Bob's images ✹

❙❛♠♣❧❡ ✉s❡ ❝❛s❡ > walt image search wifi hub:john/rpi-wifi > walt image clone hub:john/rpi-wifi Bob John's images WalT image rpi-wi fi Bob's images ✹

❙❛♠♣❧❡ ✉s❡ ❝❛s❡ > walt image search wifi hub:john/rpi-wifi > walt image clone hub:john/rpi-wifi done. > Bob John's images WalT image rpi-wi fi Bob's images ✹

❙❛♠♣❧❡ ✉s❡ ❝❛s❡ I will copy my experiment script > in the image. Bob SH John's images WalT image rpi-wi fi Bob's images ✹

❙❛♠♣❧❡ ✉s❡ ❝❛s❡ > walt image cp \ communicate.sh rpi-wifi:/bin Bob SH John's images WalT image rpi-wi fi Bob's images ✹

❙❛♠♣❧❡ ✉s❡ ❝❛s❡ > walt image cp \ communicate.sh rpi-wifi:/bin Bob SH John's images WalT image rpi-wi fi Bob's images SH ✹

❙❛♠♣❧❡ ✉s❡ ❝❛s❡ > walt image cp \ communicate.sh rpi-wifi:/bin done. > Bob SH John's images WalT image rpi-wi fi Bob's images ✹

❙❛♠♣❧❡ ✉s❡ ❝❛s❡ 3 of the nodes will > run a tra ffi c generator. Bob John's images WalT image rpi-wi fi Bob's images ✹

❙❛♠♣❧❡ ✉s❡ ❝❛s❡ > walt image shell rpi-wifi Bob John's images WalT image rpi-wi fi Bob's images ✹

❙❛♠♣❧❡ ✉s❡ ❝❛s❡ > walt image shell rpi-wifi rpi-wifi$ Bob John's images WalT image rpi-wi fi Bob's images ✹

❙❛♠♣❧❡ ✉s❡ ❝❛s❡ > walt image shell rpi-wifi rpi-wifi$ apt-get install ... rpi-wifi$ vi /bin/disturb.sh rpi-wifi$ exit Bob John's images WalT image rpi-wi fi Bob's images ✹

❙❛♠♣❧❡ ✉s❡ ❝❛s❡ > walt image shell rpi-wifi rpi-wifi$ apt-get install ... rpi-wifi$ vi /bin/disturb.sh rpi-wifi$ exit Save image as: Bob John's images WalT image rpi-wi fi Bob's images ✹

❙❛♠♣❧❡ ✉s❡ ❝❛s❡ > walt image shell rpi-wifi rpi-wifi$ apt-get install ... rpi-wifi$ vi /bin/disturb.sh rpi-wifi$ exit Save image as: rpi-wifi-dist Bob John's images WalT image rpi-wi fi Bob's images ✹

❙❛♠♣❧❡ ✉s❡ ❝❛s❡ > Bob John's images WalT image rpi-wi fi Bob's images ✹

❙❛♠♣❧❡ ✉s❡ ❝❛s❡ OK... > We're ready to deploy. Bob John's images WalT image rpi-wi fi Bob's images ✹

❙❛♠♣❧❡ ✉s❡ ❝❛s❡ > walt node boot rpi1,rpi2 \ rpi-wifi Bob John's images WalT image rpi-wi fi Bob's images ✹

❙❛♠♣❧❡ ✉s❡ ❝❛s❡ > walt node boot rpi1,rpi2 \ rpi-wifi Bob John's images WalT image rpi-wi fi Bob's images ✹

❙❛♠♣❧❡ ✉s❡ ❝❛s❡ > walt node boot rpi1,rpi2 \ rpi-wifi > walt node boot rpi3,rpi4,rpi5 \ rpi-wifi-dist Bob John's images WalT image rpi-wi fi Bob's images ✹

❙❛♠♣❧❡ ✉s❡ ❝❛s❡ > walt node boot rpi1,rpi2 \ rpi-wifi > walt node boot rpi3,rpi4,rpi5 \ rpi-wifi-dist Bob John's images WalT image rpi-wi fi Bob's images ✹

❙❛♠♣❧❡ ✉s❡ ❝❛s❡ Let's run the > experiment scripts... Bob John's images WalT image rpi-wi fi Bob's images ✹

❙❛♠♣❧❡ ✉s❡ ❝❛s❡ > walt node run rpi3,rpi4,rpi5 \ /bin/disturb.sh > walt node run rpi1,rpi2 \ /bin/communicate.sh Bob John's images WalT image rpi-wi fi Bob's images ✹

❙❛♠♣❧❡ ✉s❡ ❝❛s❡ What about the logs? > Bob John's images WalT image rpi-wi fi Bob's images ✹

❙❛♠♣❧❡ ✉s❡ ❝❛s❡ > walt log show --realtime Bob John's images WalT image rpi-wi fi Bob's images ✹

❙❛♠♣❧❡ ✉s❡ ❝❛s❡ > walt log show --realtime 08:45:23 rpi1 wifi-test Connected. Bob John's images WalT image rpi-wi fi Bob's images ✹

❙❛♠♣❧❡ ✉s❡ ❝❛s❡ > walt log show --realtime 08:45:23 rpi1 wifi-test Connected. 08:56:12 rpi2 wifi-test DONE. SEE: 08:56:12 rpi2 wifi-test tmp/res.csv Bob John's images WalT image rpi-wi fi Bob's images CSV ✹

❙❛♠♣❧❡ ✉s❡ ❝❛s❡ That's it. rpi2 compiled its > walt log show --realtime results in a csv fi le. 08:45:23 rpi1 wifi-test Connected. 08:56:12 rpi2 wifi-test DONE. SEE: 08:56:12 rpi2 wifi-test tmp/res.csv ^C Bob John's images WalT image rpi-wi fi Bob's images CSV ✹

❙❛♠♣❧❡ ✉s❡ ❝❛s❡ Let's retrieve this fi le. > Bob John's images WalT image rpi-wi fi Bob's images CSV ✹

❙❛♠♣❧❡ ✉s❡ ❝❛s❡ > walt node cp rpi2:/tmp/res.csv . Bob John's images WalT image rpi-wi fi Bob's images CSV ✹

❙❛♠♣❧❡ ✉s❡ ❝❛s❡ > walt node cp rpi2:/tmp/res.csv . done. > Bob CSV John's images WalT image rpi-wi fi Bob's images CSV ✹