Posts Tagged ‘cisco’

• Resolving a hunch – wifi performance @ GCCEC

  Date: 2009.07.22 | Category: tech•ed 2009, wireless | Response: 7

  Previously you will recall we talked about the methodology we used to diagnose why the RF utilisation at GCCEC was so stratospherically high in relation to the actual wifi network utilisation and number of associated clients. In the last moments of that day on site we did observe a few anomalies with regards to real-world network performance. Given that the wireless infrastructure is state of the art and was one of the first “enterprise” deployments of 802.11n in Australia 12 months ago – this was odd and definitely warranted further investigation before the event even if to find there wasn’t a problem at all.

  We left Brisbane bright and early on Thursday the 16th of July to spend a day with the guys from GCCEC to get to the bottom of this latest issue.

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• What is CCX and why should you care?

  Date: 2009.07.17 | Category: tech•ed 2009, wireless | Response: 0

  Early on in the history of wifi Cisco created some proprietary extensions called CCX (Cisco Compatible Extensions). These are now an open standard that a lot of network card manufacturers implement. If you’re bringing your own laptop to the event you should make sure you have CCX-4 compliant drivers, here’s why …

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• Diagnosing and resolving extremely high RF utilisation

  Date: 2009.07.15 | Category: tech•ed 2009, wireless | Response: 8

  What’s wrong with these pictures?

  

  Per AP TX/RX figures with channel utilisation across the ground floor of GCCEC

  

  Number of Client Associations across the ground floor of GCCEC

  I was given logon access to the WCS console at GCCEC at the start of May this year. Shortly (10 minutes) later I started e-mailing “DANGER, WILL ROBINSON!” messages to the venue and the tech•ed technology team.

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• Making wireless work

  Date: 2009.07.13 | Category: tech•ed 2009, wireless | Response: 4

  If you’re interested in tech•ed and have been reading the blogosphere you’ll know that every paying delegate is scoring an awesome HP Mini 2140 as a freebie! This is fantastic news for delegates and a real headache for the propeller heads behind tech•ed. We now know that we’re going to have 2500 laptops, plus delegate’s bringing their own laptops, plus wifi-enabled mobile phones, plus Microsoft staff, speakers, crew, and all of the leechers holiday-makers in Gold Coast apartments across the road to cater for as wireless users.
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