Created on
06-02-2023
01:47 AM
Edited on
02-13-2025
05:13 AM
By
Anthony_E
Description | This article describes how to consider if FortiSwitch's internal interface native VLAN changes to a different VLAN after the switch reboot |
Scope | FortiSwitch v7.2.x and above. |
Solution |
Starting from FortiSwitch v7.2.0, the 'auto-network' feature has been introduced. Refer to the link: Special notices
By default, this is enabled for FortiSwitch to come up in FortiLink mode and the mgmt-vlan is set to 4094: config switch
So, after a FortiSwitch reboot, the switch's internal interface native VLAN is changed to 4094. Command:
show full-config switch interface internal
If the FortiSwitch runs in standalone mode, it is possible to disable this feature.
config switch auto-network set status disable end
Disable the FortiLink auto-discovery on the FortiSwitch
config switch global set fortilink-auto-discovery disable <-----
If the FortiSwich is used in 'Fortilink over layer3' mode and if a different native VLAN needs to be configured on the internal interface, then change the mgmt-vlan.
For example:
On FortiSwitch:
config switch auto-network set mgmt-vlan 1 set status enable end
On FortiGate:
config system interface edit <fortilink interface name> set switch-controller-mgmt-vlan 1 end
Related article: Technical Tip: FortiLink mode over a layer-3 network |
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