RF Group leader

[chopra.harish1]

Hi All,

Can anyone please suggest me what is the criteria for a WLC to become a RF group leader and how is a Group leader is different from rest of the WLCs in the RF group. On what basis the RF group leader is elected. Is it on the basis of Lowest MAC or can we manually set a WLC to become a RF group leader.

Regards

Harish

[nikhilcherian]

Hi Harish,

The RF group leade is elected based on the Group ID .The group leader is the controller with the highest group leader priority. The group leader priority is based on the group identifier (group ID) information element (IE) contained in the AP neighbor messages. Every controller maintains a 16-bit counter that starts at 0 and increments following events like adding or leaving an RF group or the controller being rebooted. This counter value and the MAC address of the controller make up the group ID IE. Every controller in the RF group selects one controller, or itself, that has the highest group ID value and compares this to the selected controller from the other controllers in the group. The single controller with the highest group ID is elected the RF group leader.

http://what-when-how.com/deploying-and-troubleshooting-cisco-wireless-lan-controllers/

Starting with 7.0.116.0, in WLC we can configure the static leaders

http://www.cisco.com/en/US/docs/wireless/controller/7.0MR1/configuration/guide/cg_rrm.html

Thanks

NikhiL