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

Last Modified: Sep 13, 2023

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

Known Affected Versions:
12.1.2, 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: K10665315


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

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips