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All IAP105 become virtual controller when power blackout and resume back again.

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  • 1.  All IAP105 become virtual controller when power blackout and resume back again.

    Posted Dec 25, 2012 08:35 AM

    My customer having problem when the power blackout and resume back again all of the (14 units) IAP 105 become virtual controller and it broadcast is own SSID, because when log in to VC (virtual controller) web console, all other IAP doesn't join to VC. Does it have any prevention method or any other solution to solve this issue when all IAP-105 up  at the same time and power resume back again? Instead of power on first IAP105 let it become VC first then power on the rest of the IAP-105.

     

    Please advise.



  • 2.  RE: All IAP105 become virtual controller when power blackout and resume back again.

    EMPLOYEE
    Posted Dec 25, 2012 08:40 AM

    There should be an election and only ONE AP should be the VC.  Can you collect the logs from two of the access points that became VCs on the same network?  Did he have a static Virtual VC ip address assigned?

     



  • 3.  RE: All IAP105 become virtual controller when power blackout and resume back again.

    Posted Dec 25, 2012 08:50 AM

    Yes, have assigned the static ip address for the VC. I suspect the all the IAP-105 coincidence can't find the VC then elect itself as a VC.

     

    How to collect the logs from IAP? Through syslog? Because my customer doesn't syslog server ready.

     

    Those IAP-105 not a VC, does it keep the IP address of the VC, right? Either power failure or reboot the IAP.

     

     



  • 4.  RE: All IAP105 become virtual controller when power blackout and resume back again.

    EMPLOYEE
    Posted Dec 25, 2012 08:57 AM

    You should be able to collect them from Support> Tech Support dump.

     

    If the AP is a VC (Master) it should keep and answer to the static ip address of the VC.  If it is not the VC master, it should NOT keep the address of the VC.

     

    Is there anything on the local network that would block a wired broadcast?



  • 5.  RE: All IAP105 become virtual controller when power blackout and resume back again.

    Posted Dec 25, 2012 09:06 AM

    If IAP can't find the VC (master) does it will elect itself as a VC? Coincidently all IAP up at the same time except the VC (master) it up lately. For your info all IAP are on the same VLAN same network.

     

    Does the IAP keep slave VC IP address?

     

    IAP it reply on what port to do the broadcast?



  • 6.  RE: All IAP105 become virtual controller when power blackout and resume back again.

    EMPLOYEE
    Posted Dec 25, 2012 09:23 AM
    @jordontin wrote:

    If IAP can't find the VC (master) does it will elect itself as a VC? Coincidently all IAP up at the same time except the VC (master) it up lately. For your info all IAP are on the same VLAN same network.  <YES - The Instant AP with the longest uptime should be the VC master>

     

    Does the IAP keep slave VC IP address?  <YES>

     

    IAP it reply on what port to do the broadcast?  <It uses multicast to discover other APs>

     

     



  • 7.  RE: All IAP105 become virtual controller when power blackout and resume back again.

    Posted Dec 25, 2012 09:28 AM

    I will keep monitor it and try to collect the logs if it happen again.

     

    Thanks a lot joseph.



  • 8.  RE: All IAP105 become virtual controller when power blackout and resume back again.

    EMPLOYEE
    Posted Dec 25, 2012 09:30 AM

    Jordontin,

     

    Do you know what version of IAP code this is?

     



  • 9.  RE: All IAP105 become virtual controller when power blackout and resume back again.

    Posted Dec 25, 2012 08:37 PM

    Now was running 6.1.3.4-3.1.0.1_35899