Bug ID 504490: The BIG-IP system sometimes takes longer on boot up to become Active.

Last Modified: Oct 06, 2020

Bug Tracker

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

Known Affected Versions:
11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4

Fixed In:
12.0.0, 11.6.0 HF5

Opened: Feb 03, 2015
Severity: 1-Blocking
Related AskF5 Article:


The system takes several minutes longer than normal after boot up to go from Offline to Active.


Because of a timing issue during system load, it takes longer for the system to become ready to pass traffic after being deployed or rebooted.


This timing issue occurs rarely on boot up. This might more frequently occur on older platforms running newer versions of the software.



Fix Information

A BIG-IP system no longer take longer than normal to become Active on boot up due to this particular underlying issue.

Behavior Change