Bug ID 915489: LTM Virtual Server Health is not affected by iRule Requests dropped

Last Modified: Sep 13, 2023

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

Known Affected Versions:
14.1.2,,,,,,,,, 14.1.3,, 15.0.0, 15.0.1,,,,, 15.1.0,,,,,, 15.1.1, 15.1.2, 16.0.0,, 16.0.1

Fixed In:
16.1.0,,, 14.1.4

Opened: Jun 09, 2020

Severity: 4-Minor


Virtual Server Health should not take into account deliberate drop requests.


Server Health reflects it is overloading status more precisely.


-- DoS profile is attached to Virtual Server. -- iRule that drops requests on some condition is also attached to the virtual server.


Do not use iRules to drop requests when Behavioral DoS is configured.

Fix Information

Virtual Server Health is no longer affected while dropping requests using iRules.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips