Bug ID 602385: Add zLib compression

Last Modified: Sep 13, 2023

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

Known Affected Versions:
12.1.1

Fixed In:
13.0.0, 12.1.2

Opened: Jun 30, 2016

Severity: 3-Major

Symptoms

Current driver supports only compress GZip and compress deflate.

Impact

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

Conditions

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.

Workaround

None.

Fix Information

zLib compression is now supported.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips