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HA/fast failover on master/local. AP stay inactive after controller failover

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  • 1.  HA/fast failover on master/local. AP stay inactive after controller failover

    Posted Mar 05, 2016 11:31 AM

    Hi Everyone,

     

    I get problems with two controllers Master/local and HA Fast Failover.

     

    When master controller, which hold AP, reload them the local controller put the A/P in "Inactive state". Controller run 6.4.3.6 OS.

     

    I configured LMS IP in AP Group. and i see

     

    Master Controller

     

    Name               Group                 AP Type  IP Address    Status     Flags  Switch IP   Standby IP
    ----               -----                 -------  ----------    ------     -----  ---------   ----------
    40:e3:d6:cf:05:d2  AP_Group_Controller1  W-AP205  172.21.0.131  Up 6m:19s         172.21.0.2  172.21.0.3

     

     

    Local Controller

    Name               Group                 AP Type  IP Address    Status     Flags  Switch IP   Standby IP
    ----               -----                 -------  ----------    ------     -----  ---------   ----------
    40:e3:d6:cf:05:d2  AP_Group_Controller1  W-AP205  172.21.0.131  Up 7m:45s  SI     172.21.0.2  172.21.0.3

     

    After reboot master controller i see the AP in State Inactive

     

    Name               Group                 AP Type  IP Address    Status     Flags  Switch IP   Standby IP
    ----               -----                 -------  ----------    ------     -----  ---------   ----------
    40:e3:d6:cf:05:d2  AP_Group_Controller1  W-AP205  172.21.0.131  Up 8m:39s  I      172.21.0.3  172.21.0.2

     

     

     



  • 2.  RE: HA/fast failover on master/local. AP stay inactive after controller failover
    Best Answer

    EMPLOYEE
    Posted Mar 05, 2016 11:41 AM

    type "show profile-errors" on the local to see if you have not defined VLANs.



  • 3.  RE: HA/fast failover on master/local. AP stay inactive after controller failover

    Posted Mar 07, 2016 11:39 AM

    Hi cjoseph

    Thanks for your answer, it is working now. One adittional question, when the switch/controller restore from failover. AP doesn´t switch to its LMS IP althougth preemt is enable. is It anormal behavior?.

     

    Thanks! 



  • 4.  RE: HA/fast failover on master/local. AP stay inactive after controller failover

    EMPLOYEE
    Posted Mar 07, 2016 03:00 PM

    Preempt has a timer that says how long the old controller has to be up, before APs are switched back to it.  Please take a look at that timer.



  • 5.  RE: HA/fast failover on master/local. AP stay inactive after controller failover

    Posted Mar 08, 2016 11:30 AM

    OK. I see this point. In a new topology Master-MasterRedundacy. I have created a second ap-profile to get 50% AP registered on one controller (Master) and the other 50% on the second (Master redundancy). AP in the first profile works well, but when i put the AP in the second profile. The AP does not come up. What could be the issue?. I have read that this topology is also supported with HA Fast Failover



  • 6.  RE: HA/fast failover on master/local. AP stay inactive after controller failover

    EMPLOYEE
    Posted Mar 08, 2016 11:58 AM

    If the second controller is a backup master, no APs will work on that controller if it is a backup master.



  • 7.  RE: HA/fast failover on master/local. AP stay inactive after controller failover

    Posted Mar 05, 2016 12:01 PM
    Make sure you do save config on the master so all the changes get push to the local