Bug ID 600458: TCP resets occuring under high load

Last Modified: Jul 03, 2019

Bug Tracker

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

Known Affected Versions:
12.1.0, 12.1.0 HF1, 12.1.0 HF2, 12.1.1, 12.1.1 HF1, 12.1.1 HF2, 12.1.2, 12.1.2 HF1, 12.1.2 HF2, 12.1.3,,,,,,,, 12.1.4,, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1, 13.1.0,,,,,,,,, 13.1.1,,,,,, 14.0.0,,,,,, 14.1.0,,,,,,

Opened: Jun 20, 2016
Severity: 4-Minor


When a BIG-IP is under a high load, a large number of TCP resets is occurring. This affects flow teardown only. Some of those resets are due to spurious retransmissions of client or server FIN-s. Some are due to ePVA reordering client's final ACK with FIN.


Possible minimal performance loss.


A BIG-IP is under a high load.


Configure a small time-wait, for example, 0.5.

Fix Information


Behavior Change