Bug ID 439712: 4200/2200 single-threaded SSL throughput lower than similar platforms

Last Modified: Aug 19, 2026

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

Known Affected Versions:
11.5.1, 11.5.1 hf1, 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, 11.5.1 hf10, 11.5.1 hf11, 11.5.2, 11.5.2 hf1, 11.5.3, 11.5.3 hf1, 11.5.3 hf2, 11.5.4, 11.5.4 hf1, 11.5.4 hf2, 11.5.4 hf3, 11.5.4 hf4, 11.5.5, 11.5.6, 11.5.7, 11.5.8, 11.5.9, 11.5.10

Fixed In:
11.6.0

Opened: Dec 04, 2013

Severity: 3-Major

Related Article: K15799

Symptoms

For a single SSL transfer on 4200/2200, the throughput is lower than similar platforms such as a 3900.

Impact

Throughput is lower than expected.

Conditions

A 4200/2200 doing a single SSL transfer.

Workaround

None.

Fix Information

Single SSL transfers will perform much better on 4200/2200.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips