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After the FortiSwitch reboot, only the password and static route configuration are lost. As a result, need to re-configure them post-reboot.
Collect the output of 'diagnose sys config-debug' and check if any header is missing.
Note: The command is available on FortiSwitch models 2xx and above.
For example, in the below output, the header '#' is missing.
No header: (There should be a header # before 'config system'):
19xxx31_16xx_57x/./sys_vd_root.conf.gz
------------------------------
00000000 63 6f 6e 56 59 57 10 63 69 63 74 65 6d 20 73 65 |config system se|
00000010 74 74 69 6e 67 73 0a 65 6e 64 0a 63 6f 6e 66 69 |ttings.end.confi|
Should have a header like this ('#config-version=' etc...):
196xxxx1_16xx_5x2/./sys_global.conf.gz
------------------------------
00000000 23 63 6f 4e 66 59 27 2d 46 55 72 73 69 6f 6e 3d |#config-version=|
Missing header causes a parse failure, and the system fails back to the default configuration, as the config is considered corrupted.
Solution: Recommend upgrading FortiSwitch to version 7.4.3 and above.
If the issue is still seen, take console access to the FortiSwitch (make sure console session is logged) - reboot the FortiSwitch - open a support ticket and attach the console log along with the following outputs from the FortiSwitch:
diag debug report
show full-config
diagnose sys config-debug
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