Technical Tip: FortiSwitch looses configuration regarding internal interface after reboot
Description
This article describes how to resolve the issue where FortiSwitch is configured with a management VLAN different than 4094.
Scope
FortiSwitches with auto-network enabled.
Solution
A user configures the management interface as follows:
config switch interface
edit "internal"
set native-vlan 100
set allowed-vlans 100
next
end
FortiSwitch can be reached using an IP from VLAN 100.
Issue:
After the reboot of the FortiSwitch, it is not reachable anymore through this VLAN, so user needs to connect to the console port and reconfigure again.
Solution:
Configure auto-network management VLAN as follows:
config switch auto-network
set mgmt-vlan 100
end
Related documents :
Troubleshooting Tip: Internal interface native VLAN changes after switch reboot
Technical Tip: Standalone FortiSwitch password and static route config loss after reboot