Bug ID 893949: Support TCP directional offload for hardware-accelerated connections

Last Modified: Sep 13, 2023

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

Known Affected Versions:
12.1.2, 12.1.3,,,,,,,, 12.1.4,, 12.1.5,,,, 12.1.6, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1, 13.1.0,,,,,,,,, 13.1.1,,,,, 13.1.3,,,,,,, 13.1.4,, 13.1.5,, 14.0.0,,,,,, 14.0.1,, 14.1.0,,,,,, 14.1.2,,,,,,,,, 14.1.3,

Fixed In:

Opened: Mar 30, 2020

Severity: 3-Major


TCP connections are hardware accelerated for both client- and server-side traffic, but there is no way to specify the TCP hardware acceleration for only client-side or only server-side traffic.


This change allows you to specify TCP hardware acceleration for only client-side traffic, only server-side traffic, or both. Both is the default behavior. Note that setting TCP directional offload based on this change is global. There is no per-Fast L4 profile setting. For more information, see K03799525: Overview of the ePVA offload priority features, available at https://support.f5.com/csp/article/K03799525.


The BIG-IP device has TCP hardware accelerated flows.



Fix Information


Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips