Technical Note: Disabling switch-controller disrupts software switch interfaces in FortiOS 5.2
Description
Solution
The Switch Controller feature in FortiOS allows the FortiGate to control the configuration on FortiSwitches. Software switches allow traffic to be bridged between physical and virtual interfaces on the FortiGate.
There is currently a known issue where disabling the switch controller feature has the side-effect in FortiOS 5.2 of disrupting traffic flow involving software switches until the FortiGate is rebooted.
This issue is resolved starting in FortiOS 5.4.1 (as tracked in bug id 0274130).
Note: Disabling wireless controller also disables switch controller. A warning to this effect is provided in the FortiGate CLI.
There is currently a known issue where disabling the switch controller feature has the side-effect in FortiOS 5.2 of disrupting traffic flow involving software switches until the FortiGate is rebooted.
This issue is resolved starting in FortiOS 5.4.1 (as tracked in bug id 0274130).
Note: Disabling wireless controller also disables switch controller. A warning to this effect is provided in the FortiGate CLI.
FGT # config system globalSwitch-controller and extender-wan will also be disabled.
FGT (global) # set wireless-controller disable
Solution
Reboot the FortiGate after disabling Switch Controller or Wireless Controller.
Related Articles
Technical Note: Comparison of FortiGate Switch Mode configs between v5.2 and v5.4