Bug ID 744922: Traffic intelligence hitless upgrade uses load sys config

Last Modified: Sep 14, 2023

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

Known Affected Versions:
13.1.0,,,,,,,,, 13.1.1,,,,, 13.1.3,,,,,,, 13.1.4,, 13.1.5,, 14.0.0,,,,,, 14.0.1,, 14.1.0,,,,,, 14.1.2,,,,,,,,, 14.1.3,, 14.1.4,,,,,,, 14.1.5,,,,,

Fixed In:

Opened: Sep 24, 2018

Severity: 3-Major


Traffic intelligence (cec) uses load sys config on each hitless upgrade. This may cause configuration load to fail if the configuration has some errors, and hence virtual servers may go down.


System may go offline if the configuration has errors.


When the system triggers manual or automatic hitless upgrade for traffic classification.


Disable automatic hitless upgrade for traffic intelligence.

Fix Information

Update the hitless upgrade scripts to avoid load sys config while loading new IM package. Now, IM will load only the new classification_update.conf file as a part of hitless upgrade.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips