Bug ID 633110: Literal tab character in monitor send/receive string causes config load failure, unknown property

Last Modified: Jul 03, 2019

Bug Tracker

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

Known Affected Versions:
11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4, 11.6.0 HF5, 11.6.0 HF6, 11.6.0 HF7, 11.6.0 HF8, 11.6.1, 11.6.1 HF1, 11.6.1 HF2, 11.6.2, 11.6.2 HF1, 11.6.3,,,,, 11.6.4, 12.0.0, 12.0.0 HF1, 12.0.0 HF2, 12.0.0 HF3, 12.0.0 HF4, 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,,,,,,,, 12.1.4,, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1, 13.1.0,,,,,,,,, 13.1.1,,,,,, 14.0.0,,,,,, 14.1.0,,,,,,

Opened: Dec 12, 2016
Severity: 3-Major
Related AskF5 Article:


BIG-IP allows you to paste in monitor send or receive strings that contains tabs, but the tabs do not get quoted when it gets saved to the configuration. This will cause the configuration load to fail, with this error signature: Loading configuration... /config/bigip_base.conf /config/bigip_user.conf /config/bigip.conf Syntax Error:(/config/bigip.conf at line: <line>) "<text>" unknown property


The monitor will not work as expected, and subsequent config loads will fail on unknown property.


This can occur if you copy/paste a monitor send or receive string and paste it into the send/recv string field in tmsh or the GUI.


Since you are still able to use the BIG-IP GUI, you can update the monitor send or receive string using \t to represent the tab, and save the changes.

Fix Information


Behavior Change