WIND

Milosz Hulboj

Vlad Lapadatescu

CERN’s campus

• Number of deployments: increasing• Number of users: increasing• User demands: ever growing• Available spectrum: shrinking!

CERN’s campus

10.07.1229.08.12

18.10.127.12.12 26.01.13

0

1000

2000

3000

4000

5000

6000

7000

8000Associated (distinct) stations

10.07.12 29.08.12 18.10.12 7.12.12 26.01.130

100

200

300

400

500

600

700

800Rogue radios

Total

Persistent

Timeline• 2010.02 – Project started• 2010.08 – Visit in HP Montreal• 2010.11 – Technical report, change of scope, first

collection system, initial performance metrics• 2011.11 – Radio channel counters added by HP,

change of scope• 2011.12 – First rule based diagnostic engine• 2012.10 – Technical report, findings, deliverables• 2012.11 – Visit in Canada, knowledge transfer• 2013.01 – WIND as a tool for network engineers

Global perspective of WLAN deployment

• User perspective of the network (with history)

• Remote diagnostics• List of probable problem causes• Broad range of problems detected

• Assessment of WLAN health:– Reduced number of site surveys– Proactive monitoring (interference, rogues)– “What-if” analysis– Without probes!

WIND saves time, resources and money!

• State of the art WiFi monitoring and diagnosis tools

• Extensive feedback to WiFi Service manager• Valuable feedback to HP• Two technical reports, procedures,

suggestions, know-how• WIND as a service for WiFi monitoring and

troubleshooting

WIND’s legacy

• Big thank you to HP for an excellent collaboration

• Big thank you to CERN CS group for:– tolerating our experiments – help and ideas provided– testing of our tools

Acknowledgements