Once a network has scaled up beyond a single controller capacity, a master/local architecture is recommended. This allows the master controller to handle configuration and correlation while the locals can be responsible for handling the user traffic.
Steps to Add a local controller to an existing Master:
From the Master GUI:
Configuration -> Network -> Controller -> System Settings
– Click New Local Controller IPSec Keys
– Enter the IP Address of the local controller that you are adding
– Enter an IPSec key
– Re-Enter the IPSec key
– Click Add
– Click Apply (don’t forget)
– Save Configuration
Or From the Master CLI:
localip <local ip address> ipsec <ipsec key>
From the Local GUI:
Configuration -> Network -> Controller -> System Settings
– Select Controller Role Drop-Down and select Local
– Enter the Master Controller IP (VRRP address if using master redundancy)
– Enter IPSec Key (Same key you entered on Master)
– Click Apply
– Reboot Controller
Or From the Local CLI:
masterip <master ip address> ipsec <ipsec key>