Bug ID 810821: Management interface flaps after rebooting the device

Last Modified: Jan 21, 2020

Bug Tracker

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

Known Affected Versions:
14.1.0,,,,,,, 14.1.2,,,, 15.0.0, 15.0.1,, 15.1.0

Opened: Jul 30, 2019
Severity: 3-Major


The Management interface flaps after rebooting the device, which causes a momentary active-active condition in a high availability (HA) configuration.


Devices go active-active for a few seconds and then resume normal operation.


This can occur after rebooting the active or standby device in an HA configuration.


You may be able to work around this by changing the management port speed to 100/Fixed Duplex. For more information on changing the interface, see K14107: Configuring the media speed and duplex settings for network interfaces (11.x - 13.x), available at https://support.f5.com/csp/article/K14107.

Fix Information


Behavior Change