Bug ID 753514: Large configurations containing LTM Policies load slowly

Last Modified: Sep 13, 2023

Affected Product(s):
BIG-IP LTM(all modules)

Known Affected Versions:
13.1.1,,,,, 14.0.0,,,,,, 14.0.1, 14.1.0,,,,,, 14.1.2,,

Fixed In:
15.0.0,,, 13.1.3

Opened: Dec 18, 2018

Severity: 3-Major


Very slow performance when loading a configuration, for example, at system start up. During this time, the tmsh process shows high CPU usage.


Slow configuration loading, or in cases with very large configurations, full config load may fail after a long wait. Slowness increases with overall configuration size and number of LTM policies defined.


Big IP 13.1.x, 14.x. Large configuration (1 MB or larger) and at least one, but more likely tens or hundreds of LTM policies defined in the configuration.



Fix Information

Large configurations containing LTM Policies load normally.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips