Bug ID 686307: Monitor Escaping is not changed when upgrading from 11.6.x to 12.x and later

Last Modified: Nov 07, 2022

Bug Tracker

Affected Product:  See more info
BIG-IP LTM(all modules)

Known Affected Versions:
12.1.0, 12.1.0 HF1, 12.1.0 HF2, 12.1.1, 12.1.1 HF1, 12.1.1 HF2, 12.1.2, 12.1.2 HF1, 12.1.2 HF2, 12.1.3,, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1, 13.1.0,,,

Fixed In:

Opened: Sep 29, 2017
Severity: 3-Major
Related Article:


When upgrading, monitor attributes such as receive string and send string might contain escape sequences that must be processed after the upgrade. However, due to a problem introduced by the LTM policy upgrade script, this processing is not performed, resulting in monitors not functioning correctly after the upgrade. Note: Without LTM policies in the configuration, monitors upgrade without problem.


Monitors may not work after upgrade.


-- Upgrading and rolling forward monitor configuration data. -- LTM policy data present.


No workaround at this time.

Fix Information

This release addresses the underlying problem so the issue no longer occurs.

Behavior Change