Bug ID 602385: Add zLib compression

Last Modified: Nov 07, 2022

Affected Product(s):
BIG-IP APM(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

Fixed In:
13.0.0, 12.1.2

Opened: Jun 30, 2016

Severity: 3-Major


Current driver supports only compress GZip and compress deflate.


Current compression hardware (such as Coleto Creek) is needed to support ZLIB method, otherwise compression in APM Network Access tunnel does not scale.


APM Network Access tunnel has an option for compression. Compression is implemented in GZIP hudfilter which uses COMPRESS_ZLIB compression method. Currently only 'zlib' compression provider (software based) is implementing this method. None of the hardware providers (such as Coleto Creek) support it; they support COMPRESS_DEFLATE and COMPRESS_GZIP. GZIP hudfilter could use all 3 methods, but only ZLIB is compatible with current and older versions of the client. To preserve backward compatibility it must use ZLIB.



Fix Information

zLib compression is now supported.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips