| Description |
This article describes an issue where the FortiGate-400F ,600F 1100E Aggregate interfaces are not being initialized correctly after upgrading to v7.0.11, v7.2.6, v7.2.5 , or v7.4.0
A notable symptom of the issue is that the LACP Aggregate interface status will show as down, but the physical member interfaces are all showing as up. Removing a member interface or changing the LACP mode may bring the Aggregate interface up temporarily, but later the status may change back to down.
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| Scope |
FortiGate-400F/600F/1100E, FortiOS v7.0.11, v7.2.6, v7.2.5 v7.4.0. |
| Solution |
The issue has been recognized as known issue ID 910651 and it has been resolved in v7.0.13, v7.2.8, v7.4.2.
Workaround: The root issue is related to improper initialization of interface speed settings. The current workaround is to remove each member interface from the Aggregate and change the speed setting to 1000full and then back to 1000auto.
Refer to the following KB article for changing interface speed settings: |
