FortiGate High memory usage
Steps on how to optimize Memory consumption - load did not decrease
FortiOS 6.2: memory issues - Memory optimization techniques for FortiOS
memory leak - Conserve Mode - ipsengine - IPS sensors are eating
fortigate has too little RAM - Troubleshooting high memory usage
Troubleshooting on high memory or high CPU usage
Conserve mode - 80% memory ?



1- What is your topology and traffic load?

get system status
get system session-info full-stat
get system session-info statistics

2- Can you provide the output of the following commands? Which process is using up the memory?

get sys perf stat
get sys perf top
diagnose sys top
diagnose sys top-summary "-s mem"

3- Get more ips debug if it's confirmed the process is IPS

diagnose ips memory status
diagnose ips session list by-mem 10
diagnose ips session status
diagnose ips packet status

4- Any relevant crash log?

diagnose debug crashlog read

5- Does this command fix your issue?

diagnose test application wad 99

Press ctrl + c to stop the "sys perf" report.

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M p


:
get system performance top


:
 - diagnose sys top 
- diagnose sys top-summary 
- diagnose test application ipsmonitor
- diagnose test application ipsmonitor 99 
- diagnose sys kill 11

FortiGate Firewall Memory Usage goes high

:
https://kb.fortinet.com/kb/documentL...rnalID=FD33103
https://kb.fortinet.com/kb/viewAttac...mentID=FD35192
https://kb.fortinet.com/kb/documentL...rnalID=FD45766
https://kb.fortinet.com/kb/documentL...rnalID=FD45932
https://kb.fortinet.com/kb/documentL...rnalID=FD35126
https://forum.fortinet.com/tm.aspx?m=173916
https://forum.fortinet.com/tm.aspx?m=94366
https://kb.fortinet.com/kb/documentL...rnalID=FD46971
https://packetplant.com/wad-high-mem...oubleshooting/