Bug ID 472825: The Dashboard charts may dip when a blade is rebooted.

Last Modified: Apr 10, 2019

Bug Tracker

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

Known Affected Versions:
11.4.0, 11.4.1, 11.5.0, 11.5.1, 11.5.1 HF1, 11.5.1 HF10, 11.5.1 HF11, 11.5.1 HF2, 11.5.1 HF3, 11.5.1 HF4, 11.5.1 HF5, 11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3

Fixed In:
12.0.0, 11.6.0 HF4, 11.5.1 HF6, 11.4.1 HF6

Opened: Jul 23, 2014
Severity: 3-Major
Related AskF5 Article:


The dashboard charts for active sessions and established session counts drop suddenly.


The charts will remain inaccurate until next session event occurs.


This happens when both of the following conditions are met 1. A blade is coming up online to join other already running blades. 2. Session event, i.e., user login or logout, occurs while the blade is coming up.


The charts will be updated to correct value if new session is created.

Fix Information

Dashboard no longer displays a dip in active session count when primary blade comes back from a reboot.

Behavior Change