Wireless Access

I just got a weird case and need more insight about it.

Here are the setup:

- 2 controllers 7210 (A and B) with OS 6.4.4.9 as Master Active-Standby. 

- Controller A held all license (AP and FW), higher VRRP priority,  preempt enabled, Centralized License enabled

- Controller B has no lic, lower VRRP, no preempt

- All are working as configured

Earlier today we have power outage and both controller are turned off, when the power are up, it seems that ctrl-B is the first to turned on and act as Master-Active. with this condition I see AP shown on ctrl with flags IL, and there are no licenses on controller license page.

I have wait a while to let ctrl-A take over the VRRP (high priority and preemp) but it didn't happen. after 30 minutes i shutdown the controllers and power it up from ctrl-A first, and then ctrl-B. everything went back to normal again.

Although the problem has been solved but I can't pinpoint the root cause, is this behaviour are expected to happen because the lic are installed only on ctrl-A? are there any configuration needed, so it wont happen again if the situation reoccurs?

Thank you.

-Yopianus Linga-

You probably don't have the master redundancy setup correctly.  Any controller in a centralized licensing setup have 30 days before it will deactivate any licenses that were received through centralized licensing.  If you see IL, that means the controller was not part of the centralized setup.

You should type "show switches" on the master and make sure that second controller is listed as the backup master.

Hi Collins, thanks for the response.

VRRP has been configured correctly (i hope), here are configuration info:

Master-Active (CTRL-A)

show roleinfo

switchrole:master
masterip:172.16.21.7

show switches  


All Switches
------------
IP Address   Name             Location          Type     Model      Version        Status  Configuration State  Config Sync Time (sec)  Config ID
----------   ----             --------          ----     -----      -------        ------  -------------------  ----------------------  ---------
172.16.21.5  WLC-MD-L2-7210A  Building1.floor1  master   Aruba7210  6.4.4.9_55980  up      UPDATE SUCCESSFUL    0                       3
172.16.21.6  WLC-MD-L2-7210B  Building1.floor1  standby  Aruba7210  6.4.4.9_55980  up      UPDATE SUCCESSFUL    12                      3

show license profile  


License provisioning profile
----------------------------
Parameter              Value
---------              -----
Centralized Licensing  Enabled



show license aggregate  


Aggregate License Table
-----------------------
Hostname         IP Address   AP   PEF  RF Protect  xSec Module  ACR  Last update (secs. ago)
--------         ----------   ---  ---  ----------  -----------  ---  -----------------------
WLC-MD-L2-7210B  172.16.21.6  0    0    0           0            0    26
WLC-MD-L2-7210A  172.16.21.5  239  239  0           0            0    2


show license debug  


Summary of licensing state

Centralized Licensing: Enabled
Switch Role: Master
License Role: License Server
Master IP: 172.16.21.7
Switch IP: 172.16.21.5
License Server IP: 0.0.0.0

Master-Standby (CTRL-B)

show roleinfo  

switchrole:standby
masterip:172.16.21.7

show switches


All Switches
------------
IP Address Name Location Type Model Version Status Configuration State Config Sync Time (sec) Config ID
---------- ---- -------- ---- ----- ------- ------ ------------------- ---------------------- ---------
172.16.21.6 WLC-MD-L2-7210B Building1.floor1 standby Aruba7210 6.4.4.9_55980 up UPDATE SUCCESSFUL 0 3


show license profile


License provisioning profile
----------------------------
Parameter Value
--------- -----
Centralized Licensing Enabled

show license aggregate


This command is applicable only on the license server.
show license debug


Summary of licensing state

Centralized Licensing: Enabled
Switch Role: Standby Master
License Role: Standby License Server
Master IP: 172.16.21.7
Switch IP: 172.16.21.6
License Server IP: 0.0.0.0

Regards

Yopianus Linga

You should open a TAC case.  I do not see why that could be happening.