Wireless controller migration question

  • 0
  • 1
  • Question
  • Updated 5 years ago
  • Answered
I'm searching for a solution to migrate a old C20 wireless controller to a V2110 with minimal wireless network outage. The old infrastructure is a mixed environment of AP2620/AP3620.

My first idea was to change the controller priority in the AP configuration, but this didn't work. The AP still reconnected to the old controller after reboot. If the "join" would work correct, I'm not sure if the could be the next problem - the c20 firmware is a really old 6R1.x and the V2110 use the latest 8.31.x code. Would the AP firmware upgrade work correct? I know there is a recommended upgrade path for controller, but this would cause serveral reboots and this would cause a longer outage. Any ideas?
Photo of Hartmut Sachse

Hartmut Sachse

  • 2,598 Points 2k badge 2x thumb

Posted 5 years ago

  • 0
  • 1
Photo of Doug Hyde

Doug Hyde, Technical Support Manager

  • 20,514 Points 20k badge 2x thumb
Official Response
  • Set both of the new controllers to allow only approved access points.
  • Ensure AP discovery method allows the AP to find both of the new controllers.
  • Set the AP's static search list to find the new controller(s).
  • Delete the AP from the older code controller.
  • Configure new controller as desired, services etc.
  • After the deleting the AP from the old controller, it should appear on the new controller as pending.
  • Accept the AP on the new controller.
  • When AP is upgraded, add services to it and test functionality.
  • Repeat the above with 1 AP of each type 26xx 36xx etc.
  • With a known procedure in place repeat with remaining AP's in small groups of about 10-20 AP's.
It may take a few minutes for the access point to upgrade, but it should work. Any issues please feel free to contact the GTAC directly. 


Doug Hyde
Sr. Support Engineer