Bug ID 441413: Initial TCP window sizes for mirroring connection.

Last Modified: Apr 28, 2025

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

Known Affected Versions:
11.0.0, 11.1.0, 11.2.0, 11.2.1, 11.3.0, 11.4.0, 11.4.1, 11.5.0

Fixed In:
11.5.1, 11.5.0 HF1, 11.4.1 HF4

Opened: Dec 20, 2013

Severity: 3-Major

Related Article: K16551

Symptoms

Initial TCP window sizes for mirroring impacts performance and mirroring.

Impact

Performance and mirroring impacts. Note: This does not affect client traffic.

Conditions

Using HA failover with mirroring.

Workaround

None

Fix Information

A change to initial tcp window sizes resulted in performance improvements and increased mirroring stability.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips