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Access network design for branch, remote, outdoor, and campus locations with HPE Aruba Networking access points and mobility controllers.
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Question about AP Poe power

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  • 1.  Question about AP Poe power

    Posted Sep 16, 2017 04:47 AM
      |   view attached

    hi I encountered a trouble， under normal circumstances 

    AP-205H Occupies 15.4W power。

    In my network, I find some AP-205H use max power

    it cause my switch to power out

    my switch model cisco2960 48port total  740w  power

    if some ap use 30w power,it must cause switch power out

    can you tell me why some ap can use max power?

     

     



  • 2.  RE: Question about AP Poe power
    Best Answer

    EMPLOYEE
    Posted Sep 16, 2017 03:17 PM

    AP-205H will try to secure the full 802,3at POE budget (25.5W at AP, 30W at switch) to allow it to deliver power to an attached USB and/or POE device.

    If you enable the ap-poe-power-optimization provisioning parameter (which disables POE out and USB), it will request just 802.3af POE (12.95W, 15.4W).



  • 3.  RE: Question about AP Poe power

    Posted Sep 17, 2017 05:48 AM

    hi,can you tell me how to config ap-poe-power-optimization (which disables POE out and USB) in WebUI or CLI ?

    I don't find it in AP system porfile . thanks

    Look forward to your favourable reply

     



  • 4.  RE: Question about AP Poe power

    EMPLOYEE
    Posted Sep 17, 2017 08:25 PM

    This parameter can be set as part of AP provisioning only; it's not a config option.



  • 5.  RE: Question about AP Poe power

    Posted Sep 17, 2017 03:44 PM

    Be careful as some older version of Cisco iOS (but not all) are known to have LLDP implementation problem, causing 802.3at negociation to fail. I personnally witness this problem on 2960, 2960X and 3750X.