Bug ID 611320: Mirrored connection on Active unit of HA pair may be unexpectedly torndown

Last Modified: Nov 07, 2022

Bug Tracker

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

Known Affected Versions:
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

Fixed In:
13.0.0, 12.1.2

Opened: Aug 16, 2016
Severity: 3-Major
Related Article:


Mirrored connection on Active unit is torn down. TCP connection is RST with cause of 'HA Expire flow'.


Traffic loss.


Mirrored connection on Standby unit times out due state mismatch with connection on Active unit.


Disable mirroring.

Fix Information

The system no longer mirrors connflow expiration from Standby to Active. This is correct behavior.

Behavior Change