Controllerless Networks

last person joined: 5 hours ago 

Aruba Instant Wi-Fi: Meet the controllerless Wi-Fi solution that's easy to set-up, is loaded with security and smarts, and won't break your budget.
Expand all | Collapse all

Aruba IAP-135 High CPU Consumption

  • 1.  Aruba IAP-135 High CPU Consumption

    Posted Nov 20, 2012 12:40 PM

    Hi Airheads,

     

    We recently bought an IAP-135 to take a look at it.

    It currently has the latest firmware version 6.1.3.4-3.1.0.0.

     

    The problem I have is that the CPU usage goes up to 90% when i'm transferring data at speed about 100-110 Mbit/s

    At this time i'm the only client on the IAP and have and established connection with a linkspeed of 300Mbit/s

     

    If the CPU is used for 90% during 100Mbit transfer, what would the CPU usage be if the total transfer speed came closer to theoretical 900Mbit/s for this AP?

     

    So, the question is, is it ok for CPU consumption to be that high ?

    And of course I understand that 300mbps is only a linkspeed,theoretical maximum speed. But isn't 100 Mbit/s too low for a linkspeed of 300?

     

    Thank you for your opinions.



  • 2.  RE: Aruba IAP-135 High CPU Consumption

    Posted Nov 20, 2012 01:37 PM

    Hi,

     

    this seems to be related to the following post:
    http://community.arubanetworks.com/t5/Aruba-Instant/105-slow-after-firmware-upgrade-to-6-1-3-4-3-1-0-0-35320/m-p/47608/highlight/true#M795

     

    On my deployment, CPU usage went to normal usage level after disabing MAS integration.

     

    Best regards,

     



  • 3.  RE: Aruba IAP-135 High CPU Consumption

    Posted Nov 20, 2012 03:33 PM

    Thanks Paul,

    But looks like this is not the case.

     

    Although I was telling about 6.1.3.4-3.1.0.0_35320, actually I  had the same picture even with 6.1.3.1.

     

    As you recommended, I tried disabling MAS integration, but not sure if it worked. Reboted the IAP and found MAS integration enabled again. So far I wasn't able to have it disabled after reboot.

     

    Luckily, I noticed that a new firmware version had just become available - 6.1.3.4-3.1.0.1_35899. (The IAP is Dell-branded, so all firmare updates come later than for original aruba devices)

    After upgrading to 6.1.3.4-3.1.0.1_35899, I was able to disable MAS integration (it stayed disabled even after IAP reboot).

    But still no difference in CPU usage.

    When i Hit 100-120 mbps, cpu usage hits 80-90%. When there is no transfer - it is used for 10% on the average

     

    Could someone share their normal CPU usage under heavy load, say when IAP transfers total of more than 100mbps ?

     

    Thanks