Bug ID 709381: iRules LX plugin imported from a system with a different version does not properly run, and the associated iRule times out.

Last Modified: Oct 17, 2023

Affected Product(s):
BIG-IP TMOS(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,,,,,, 15.0.0, 15.0.1,,,,

Opened: Mar 08, 2018

Severity: 3-Major


An iRules LX plugin does not properly run and messages similar to the following example are logged to the /var/log/ltm file: err tmm[17616]: 01220001:3: TCL error: /Common/my-plugin/my-rule <HTTP_REQUEST> - ILX timeout. invoked from within "ILX::call $ilx_handle -timeout 3000 my-function"


The affected iRules LX are not functional under the new software version, and the virtual servers utilizing them will experience various failures.


An iRules LX workspace archive is imported to BIG-IP version 13.1.0 or later from a previous software version. It should be noted this is what happens during a regular software upgrade. Therefore, you might encounter this issue when upgrading a system to BIG-IP version 13.1.0 or later.


Change the node version from 0.12.15 to 6.9.1 and back.

Fix Information


Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips