Bug ID 450202: Incorrect MSS calculation with fastl4 can result in TMM crash.

Last Modified: Sep 13, 2023

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

Known Affected Versions:
11.6.2 HF1

Fixed In:
11.6.0, 11.5.1 HF5

Opened: Feb 25, 2014

Severity: 3-Major

Related Article: K15945

Symptoms

TMM may crash as a result of an issue with TCP Segmentation Offload (TSO) calculations.

Impact

Traffic disrupted while tmm restarts.

Conditions

Differing MSS values can result in an incorrect calculation.

Workaround

There is no workaround.

Fix Information

Fix MSS calculation when using fastl4.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips