Bug ID 597089: Connections are terminated after 5 seconds when using ePVA full acceleration

Last Modified: May 23, 2019

Bug Tracker

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

Known Affected Versions:
11.4.1, 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, 11.5.1 HF6, 11.5.1 HF7, 11.5.1 HF8, 11.5.1 HF9, 11.5.2, 11.5.2 HF1, 11.5.3, 11.5.3 HF1, 11.5.3 HF2, 11.5.4, 11.5.4 HF1, 11.5.4 HF2, 11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4, 11.6.0 HF5, 11.6.0 HF6, 11.6.0 HF7, 11.6.0 HF8, 11.6.1, 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, 11.6.1 HF1, 11.5.4 HF3

Opened: Jun 02, 2016
Severity: 3-Major
Related AskF5 Article:
K43159417

Symptoms

When using a fast L4 profile with ePVA full acceleration configured, the 5-second TCP 3WHS handshake timeout is not being updated to the TCP idle timeout after the handshake is completed. The symptom is an unusually high number of connections getting reset in a short period of time.

Impact

High number of connections get reset, longer than expected idling TCP connections, and potential performance issues.

Conditions

It is not known all of the conditions that trigger this, but it is seen when using the fast L4 profile with pva-acceleration set to full.

Workaround

Disabling the PVA resolves the issue.

Fix Information

None

Behavior Change