The most useful Prime Infrastructure report

Cisco’s Prime Infrastructure has come a long way over the past couple of years. From it’s beginnings as WCS, then to NCS, then through the sordid Prime Infrastructure 1.x versions, we’ve finally arrived at a place where it’s reasonable to dig back into the product. To say that Prime Infrastructure (PI for short) is an overwhelming product is an understatement. I decided to write about an obscure but extremely useful report (yes, a boring report) that I think you should use.

As we all know, in the RF world, performance revolves around Channel Utilization – of which there are several definitions. For simplicities sake, I’m referring to Channel Utilization as reported by the venerable Cognio card (AKA: CleanAir) – the baseline reference that most Wireless LAN Professionals use to call ‘Channel Utilization’. This is the amount of energy detected on a channel during a specific dwell time. This metric is roughly the wired equivalent of ‘link utilization’. Wouldn’t it be nice to see a historic report of the ‘link utilization’ of all of the APs radios in our environment over a period of time? Wouldn’t it be nice to see if a change we made recently (disabling lower data rates for example) made a historic significance to our Channel Utilization? Yes, of course it would! Without further ado, I bring you, the Channel Utilization report that you always wished you had, but never knew was always at a your fingertips:

Reports Launch Pad -> Wireless Utilization -> RadioReport Launch Pad

(that last bit is important!)

Report Details

This gives you a historical report of every radio in your infrastructure (all 2.4 and 5GHz) and a trending of not only their Channel Utilization, but their TX and RX utilization for further correlation/troubleshooting:

Prime Infrastructure CU

What do you think? Do you find this report useful? If so, drop me a comment and let me know how you use it. What other reports do you find yourself favoring in Prime Infrastructure?

4 Responses to The most useful Prime Infrastructure report

  1. wirednot says:

    Thanks for sharing this, Sam. There is a lot of info to be mined under “Device” reports, and this is good stuff. It should be noted, that as you describe it, you MUST be in converged view (turn head, spit) or this report won’t run. In Classic Theme, the report doesn’t show the radio (2.4 and 5 GHz) options and you can’t run the report without toggling one or both.

    Agreed PI is getting better, but that’s a relative term 🙂

  2. wirednot says:

    Reblogged this on wirednot and commented:
    If you are a Cisco WLAN customer, there is a report in PI worth considering getting to know. By Sam Clements.

  3. Nolan says:

    Oh look ! Something PRIME is actually useful for ^_^

  4. Pingback: The most useful Prime Infrastructure report - Steve Williams GroupSteve Williams Group

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