Technical Tip: What is the meaning of 'Interface [interface name] is brought [up|down]' in crashlog?
Description
This article describes that when the Administrative Status of Network Interface is changed, 'Interface [interface name] is brought [up|down]' is recorded in the crash log. The same logs can be observed when a reboot is executed on the FortiGate.
Scope
FortiGate.
Solution
Commands:
config system interface
edit [interface_name]
set status (down | up)　<--- Administrative Status.
next
end
edit [interface_name]
set status (down | up)　<--- Administrative Status.
next
end
Sample crashlog:
diagnose debug crashlog read
1: 2014-03-26 03:46:41 the killed daemon is /bin/pyfcgid: status=0x0
2: 2014-03-26 10:57:22 the killed daemon is /bin/pyfcgid: status=0x0
3: 2014-03-26 14:10:01 the killed daemon is /bin/pyfcgid: status=0x0
4: 2014-03-26 22:09:34 the killed daemon is /bin/pyfcgid: status=0x0
5: 2014-03-28 13:28:07 the killed daemon is /bin/pyfcgid: status=0x0
6: 2014-03-28 21:33:07 the killed daemon is /bin/pyfcgid: status=0x0
7: 2014-03-31 10:45:07 the killed daemon is /bin/pyfcgid: status=0x0
8: 2014-03-31 11:03:38 Interface port15 is brought up. process_id=36, process_name="cmdbsvr" ===> WebUI triggered
9: 2014-03-31 11:45:10 Interface port15 is brought down. process_id=36, process_name="cmdbsvr" ===> WebUI triggered
10: 2014-03-31 17:22:18 Interface port15 is brought up. process_id=663, process_name="newcli" ===> CLI triggered
11: 2014-03-31 17:22:29 Interface port15 is brought down. process_id=663, process_name="newcli" ===> CLI triggered
12: 2014-03-31 17:23:51 Interface port15 is brought up. process_id=36, process_name="cmdbsvr" ===> WebUI triggered
13: 2014-03-31 17:24:11 Interface port15 is brought down. process_id=36, process_name="cmdbsvr" ===> WebUI triggered
14: 2014-04-01 03:11:26 the killed daemon is /bin/pyfcgid: status=0x0
15: 2014-04-01 11:11:01 the killed daemon is /bin/pyfcgid: status=0x0
1: 2014-03-26 03:46:41 the killed daemon is /bin/pyfcgid: status=0x0
2: 2014-03-26 10:57:22 the killed daemon is /bin/pyfcgid: status=0x0
3: 2014-03-26 14:10:01 the killed daemon is /bin/pyfcgid: status=0x0
4: 2014-03-26 22:09:34 the killed daemon is /bin/pyfcgid: status=0x0
5: 2014-03-28 13:28:07 the killed daemon is /bin/pyfcgid: status=0x0
6: 2014-03-28 21:33:07 the killed daemon is /bin/pyfcgid: status=0x0
7: 2014-03-31 10:45:07 the killed daemon is /bin/pyfcgid: status=0x0
8: 2014-03-31 11:03:38 Interface port15 is brought up. process_id=36, process_name="cmdbsvr" ===> WebUI triggered
9: 2014-03-31 11:45:10 Interface port15 is brought down. process_id=36, process_name="cmdbsvr" ===> WebUI triggered
10: 2014-03-31 17:22:18 Interface port15 is brought up. process_id=663, process_name="newcli" ===> CLI triggered
11: 2014-03-31 17:22:29 Interface port15 is brought down. process_id=663, process_name="newcli" ===> CLI triggered
12: 2014-03-31 17:23:51 Interface port15 is brought up. process_id=36, process_name="cmdbsvr" ===> WebUI triggered
13: 2014-03-31 17:24:11 Interface port15 is brought down. process_id=36, process_name="cmdbsvr" ===> WebUI triggered
14: 2014-04-01 03:11:26 the killed daemon is /bin/pyfcgid: status=0x0
15: 2014-04-01 11:11:01 the killed daemon is /bin/pyfcgid: status=0x0
Device is rebooted via CLI:
execute reboot
704: 2025-10-10 01:35:25 Interface port3 is brought down. process_id=9224, process_name="newcli"
705: 2025-10-10 01:35:26 Interface port4 is brought down. process_id=9224, process_name="newcli"
706: 2025-10-10 01:35:26 Interface port5 is brought down. process_id=9224, process_name="newcli"
707: 2025-10-10 01:35:26 Interface port6 is brought down. process_id=9224, process_name="newcli"
708: 2025-10-10 01:35:26 Interface port7 is brought down. process_id=9224, process_name="newcli"
709: 2025-10-10 01:35:27 Interface port8 is brought down. process_id=9224, process_name="newcli"
710: 2025-10-10 01:35:27 Interface port9 is brought down. process_id=9224, process_name="newcli"
711: 2025-10-10 01:35:27 Interface port10 is brought down. process_id=9224, process_name="newcli"
705: 2025-10-10 01:35:26 Interface port4 is brought down. process_id=9224, process_name="newcli"
706: 2025-10-10 01:35:26 Interface port5 is brought down. process_id=9224, process_name="newcli"
707: 2025-10-10 01:35:26 Interface port6 is brought down. process_id=9224, process_name="newcli"
708: 2025-10-10 01:35:26 Interface port7 is brought down. process_id=9224, process_name="newcli"
709: 2025-10-10 01:35:27 Interface port8 is brought down. process_id=9224, process_name="newcli"
710: 2025-10-10 01:35:27 Interface port9 is brought down. process_id=9224, process_name="newcli"
711: 2025-10-10 01:35:27 Interface port10 is brought down. process_id=9224, process_name="newcli"
