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Missing EIRP Restriction. Users can configure EIRP beyond the Max EIRP.

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  • 1.  Missing EIRP Restriction. Users can configure EIRP beyond the Max EIRP.

    Posted Jan 12, 2017 03:09 PM

    In the firmware 6.5.0.0-4.3.0.0, the aruba WAP allows users to set EIRP which can exceed the defined MAX EIRP. For ex: when MAX EIRP is set to 13dBm, it allows us to set the EIRP upto 15dBm.

    The below log shows the MAX EIRP and the current EIRP:

    18:64:72:c8:4f:ac# a-channel 149 15
    18:64:72:c8:4f:ac# show ap bss-table

    Aruba AP BSS Table
    ------------------
    bss ess port ip phy type ch/EIRP/max-EIRP cur-cl ap name in-t(s) tot-t
    --- --- ---- -- --- ---- ---------------- ------ ------- ------- -----
    18:64:72:04:fa:d3 xbu15_test4 ?/? 172.29.15.225 a-VHT ap 149/15/13 0 18:64:72:c8:4f:ac 0 47m:52s
    18:64:72:04:fa:c3 xbu15_test4 ?/? 172.29.15.225 g-HT ap 11/5/13 0 18:64:72:c8:4f:ac 0 48m:25s

    Channel followed by "*" indicates channel selected due to unsupported configured channel.
    "Spectrum" followed by "^" indicates Local Spectrum Override in effect.

    Num APs:2
    Num Associations:0
    18:64:72:c8:4f:ac#

    This is a bug in the latest aruba software release which is a violation of EU regulation. Can someone confirm and look into it?



  • 2.  RE: Missing EIRP Restriction. Users can configure EIRP beyond the Max EIRP.

    EMPLOYEE
    Posted Jan 12, 2017 03:13 PM

    AP model and country?



  • 3.  RE: Missing EIRP Restriction. Users can configure EIRP beyond the Max EIRP.

    Posted Jan 12, 2017 03:25 PM

    AP Model: 225

    Country Code: Canada

     

    More details below.

     

    18:64:72:c8:4f:ac# show running-config | include country
    virtual-controller-country CA
    18:64:72:c8:4f:ac# show version
    Aruba Operating System Software.
    ArubaOS (MODEL: 225), Version 6.5.0.0-4.3.0.0
    Website: http://www.arubanetworks.com
    (c) Copyright 2015 Hewlett Packard Enterprise Development LP.
    Compiled on 2016-09-12 at 03:25:40 PDT (build 56428) by p4build
    FIPS Mode :disabled

    AP uptime is 45 minutes 24 seconds
    Reboot Time and Cause: AP rebooted Sun Dec 4 15:20:58 UTC 2016; CLI cmd at uptime 0D 0H 22M 36S: reload
    18:64:72:c8:4f:ac#

     

    Thank you.



  • 4.  RE: Missing EIRP Restriction. Users can configure EIRP beyond the Max EIRP.
    Best Answer

    EMPLOYEE
    Posted Jan 12, 2017 03:37 PM

    If the regulatory limits have changed recently, you would need to grab the latest IAP version of code to be in compliance. I have asked our regulatory team as well, but 13dB sounds low for ch149 to be the max. 



  • 5.  RE: Missing EIRP Restriction. Users can configure EIRP beyond the Max EIRP.

    EMPLOYEE
    Posted Jan 12, 2017 03:45 PM

    Note that it is weird to see the setting at 15 when the noted max is 13, I would open a TAC case (nothing will get fixed or officially addressed here on this forum). 



  • 6.  RE: Missing EIRP Restriction. Users can configure EIRP beyond the Max EIRP.

    EMPLOYEE
    Posted Jan 12, 2017 04:10 PM

    Actually 'm thinking this is a misconfig. If you set the ARM value to X up to 13dB, but then you manually set it to 15, you are over-riding the min/max ARM setting. The regulatory max is well over 13 of course, but you should open a TAC case to make sure this is addressed in your situation, as you have the first release of a major bracnh of code. If there's a bug, it's likely already addressed.



  • 7.  RE: Missing EIRP Restriction. Users can configure EIRP beyond the Max EIRP.

    Posted Jan 12, 2017 05:06 PM

    Hi Jerrod,

     

    I was running a negative test case that's when I noticed this bug. As per your advice, I upgraded the software version to 6.5.1.0-4.3.1.1 where this issue is no longer seen.

     

    I will continue using this verson henceforth. Thank you for your help.. Really appreciated.

     

    Thanks,

    Shiva