Teamed MSM760 Mobility Controllers synchronization issue / AP detection problem

[CraigStrydom71]

Hi All,

I have 4x MSM760 Mobility Controllers teamed together managing x370 APs currently with about 100-200 more APs expected.

2x controllers where originally purchased and teamed and 2x more a year later and added to the team - all 4x have the same hardware revision - B:48 and running software version 6.6.2.0. (Same issue on 6.5.0.0).

Our DHCP server provides the controller ip address to the APs when they startup. 

We seem to have an issue where APs are not detected by the first 2x controllers until one or both of the second 2x controllers are rebooted. It is as if the APs are not passed on to the Team Manager.

Anyone experienced this problem before?

Kind regards,

Craig.

[RamKrish]

Hi

From what you have mentioned, it almost appears to me that due to TEAMING license will be shared by all the 4 controllers included in the team.  If for example for the 1st 2x controller had 150 each license and next 2x controller had 100 each.  Total avaialble license becomes 500.  Once all 4x controllers are in teaming, then each controller would have 125 license. 

So if your APs were provided with DHCP option 43 to include all the 4x controllers.  Then the APs would only be accepted based on each controller limit.  In this case 125 APs per controller.  Anyting beyond that 125 count, APs will not be accepted by any controller.

BUT if you reboot any one of the controller then the license pool will be re-calculated.  Now 500 license / 3 controller == approx 166 APs per controller.  So when you reboot any of the controller APs can be accepted by controller beyond the 125 limit upto the new limit of 166.

Hope this helps.