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The cw_acd process is used to handle communication between FortiGate and APs. In some cases, this process can consume a lot of memory causing FortiGate to enter in conserve mode.
If high memory usage is detected by the cw_acd process, the following commands can be executed on Fortigate CLI to get information about the memory usage on this process:
fnsysctl date
get sys performance status
diag hardware sysinfo memory
diag hardware sysinfo slab
diag hardware sysinfo conserve
diag sys top-mem 30
diag sys top 5 30 6 <----- Hit 'm' to order the processes by memory usage.
get wireless-controller status
diagnose wireless wlac -c mpmt
diagnose wireless-controller wlac -c stats
diagnose wireless-controller wlac -p 0 -c stats
diagnose wireless-controller wlac -p 1 -c stats
diagnose wireless-controller wlac -p 2 -c stats
diagnose wireless-controller wlac -p 3 -c stats
diagnose wireless-controller wlac -p 4 -c stats
diagnose wireless-controller wlac -p 5 -c stats
diagnose wireless-controller wlac -p 6 -c stats
diagnose wireless-controller wlac -p 7 -c stats
Use these commands on the Teraterm script to automatically get the CLI information along a scheduled time to validate if the memory in increasing due to the cw_acd process.
In addition to the above commands, wireless global settings and timers can be modified under:
config wireless-controller global
config wireless-controller timers
Related article:
Technical Tip: FortiGate monitoring script |
