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

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Stefan_Casucci_'s avatar
Stefan_Casucci_
Icon for Nimbostratus rankNimbostratus
Feb 12, 2018

False High Memory Utilization

In our network management platform, we are seeing high memory utilization on our BIG-IP (LTM) appliance because it sees the total system memory utilization being high, which to my understanding is a ...
application delivery
big-ip
Only1masterbla1's avatar
Only1masterbla1
Icon for Cirrus rankCirrus
Feb 12, 2018

K9524: Viewing memory utilization for multiple TMM instances on CMP systems https://support.f5.com/csp/article/K9524

 

Viewing memory utilization for each TMM instance using SNMP

 

1.Log in to the command line. 2.Use an SNMP application, such as snmpwalk, to poll the F5-BIGIP-SYSTEM-MIB::sysTmmStatMemoryUsed OID: snmpwalk -c public localhost .1.3.6.1.4.1.3375.2.1.8.2.3.1.32

 

For example, the following snmpwalk command output was taken from a BIG-IP 8800 platform running four TMM instances:

 

F5-BIGIP-SYSTEM-MIB::sysTmmStatMemoryUsed."1.0" = Counter64: 24558472 F5-BIGIP-SYSTEM-MIB::sysTmmStatMemoryUsed."1.1" = Counter64: 25595500 F5-BIGIP-SYSTEM-MIB::sysTmmStatMemoryUsed."1.2" = Counter64: 25592356 F5-BIGIP-SYSTEM-MIB::sysTmmStatMemoryUsed."1.3" = Counter64: 25601120