Bug ID 619410: TMM hardware accelerated compression not registering for all compression levels.

Last Modified: Sep 13, 2023

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

Known Affected Versions:

Fixed In:
13.0.0, 12.1.2

Opened: Sep 28, 2016

Severity: 3-Major


DEFLATE/gzip/zlib compression levels other than level 1 bypass the hardware accelerator and are serviced in software, resulting in higher CPU utilization and slower compression times.


Compression requests serviced by software are scheduled on local CPUs. During heavy compression traffic, overall system traffic flow may be reduced. Compression requests serviced in software may take significantly longer to complete.


-- Compression requests for DEFLATE/gzip/zlib levels other than level 1. -- BIG-IP devices using Coleto Creek SSL hardware acceleration.



Fix Information

Hardware accelerator correctly registers for all DEFLATE/gzip/zlib compression levels, not just level 1.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips