Mar 27, 2026 - For details about updated CVE-2025-53521 (BIG-IP APM vulnerability), refer to K000156741.

Forum Discussion

mr_shaggy_17493's avatar
mr_shaggy_17493
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Aug 23, 2016

High Memory Used on TMM Instance

Hi All,   I have a pair of BIG-IP 5200v. Today I just realise that on the last 30 days, TMM memory utilization on my F5 active unit is getting high, and keep increase up to 50% used. Normally, it...
application delivery
LTM
mr_shaggy_17493's avatar
mr_shaggy_17493
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Aug 25, 2016

I was just open a ticket for my case. I'll update after the root cause has found.

 

mr_shaggy_17493's avatar
mr_shaggy_17493
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Oct 07, 2016

Hi matt,

 

I think they didn't found the exact root cause for the issue and just suggest me to switch boot to another partition. This solution is worked for me, and memory statistics are getting normal after the switch boot. But now it's HA pair are looking to start the same symptom here, where the memory statistics are gradually higher (previously it's only happen on one unit in the HA pair).

 

As the BIG-IP 11.6.0 has reached it's EoSD, so I plan to upgrade it into the higher version. We are using ASM on this unit, so besides of this issue, we also need to periodically update the attack signature, and there will be no more update if we keep using this OS version.

 

Thanks,

 

Ahmad