Bug ID 516179: Woodside falsely detects congestion

Last Modified: Oct 06, 2020

Bug Tracker

Affected Product:  See more info
BIG-IP LTM(all modules)

Known Affected Versions:
11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4

Fixed In:
12.0.0, 11.6.0 HF5

Opened: Apr 02, 2015
Severity: 2-Critical
Related AskF5 Article:


The TCP profile Congestion Control Woodside falsely detects congestion and might reduce its own performance.


Performance impact when using the Woodside congestion control algorithm, and TMM might crash.


High-bandwidth, low-delay connections (i.e., a large congestion window).


Use a TCP profile Congestion Control other than Woodside.

Fix Information

The Woodside congestion control algorithm now correctly detects congestion without false alarms.

Behavior Change