Bug ID 473105: FastL4 connections reset with pva-acceleration set to guaranteed

Last Modified: Nov 07, 2022

Affected Product(s):
BIG-IP LTM(all modules)

Known Affected Versions:
11.1.0, 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, 11.5.1 HF6, 11.5.1 HF7, 11.5.1 HF8, 11.5.1 HF9, 11.5.10, 11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4, 11.6.0 HF5

Fixed In:
12.0.0, 11.6.0 HF6, 11.5.2, 11.4.1 HF6

Opened: Jul 25, 2014

Severity: 2-Critical

Related Article: K16200


With 'pva-acceleration' set to 'guaranteed', the BIG-IP system can take up to five seconds to detect that one of either the client-side or server-side connections has not been offloaded to the ePVA hardware.


This results in the connection that has not been offloaded being reset five seconds after being established.


This occurs with 'pva-acceleration' set to 'guaranteed' and only one of client or server connections is offloaded to hardware.



Fix Information

FastL4 connections are now handles correctly with pva-acceleration set to guaranteed, and are no longer reset.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips