Bug ID 476398: TCP profile options Receive Window and Send Buffer are not used

Last Modified: Oct 17, 2023

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

Known Affected Versions:
11.6.0, 11.6.1, 11.6.2, 11.6.3, 11.6.3.1, 11.6.3.2, 11.6.3.3, 11.6.3.4, 11.6.4, 11.6.5, 11.6.5.1, 11.6.5.2, 11.6.5.3, 12.0.0, 12.0.0 HF1, 12.1.0 HF1, 12.0.0 HF2, 12.1.0 HF2, 12.0.0 HF3, 12.0.0 HF4, 12.1.1 HF1, 12.1.1 HF2, 12.1.2 HF1, 12.1.2 HF2, 12.1.0, 12.1.1, 12.1.2, 12.1.3, 12.1.3.1, 12.1.3.2, 12.1.3.3, 12.1.3.4, 12.1.3.5, 12.1.3.6, 12.1.3.7, 12.1.4, 12.1.4.1, 12.1.5, 12.1.5.1, 12.1.5.2, 12.1.5.3, 12.1.6

Opened: Aug 21, 2014

Severity: 4-Minor

Symptoms

The TCP profile options Receive Window and Send Buffer are not used.

Impact

This prevents configuring these settings.

Conditions

TCP profile has Multipath TCP (MPTCP), Rate Pacing, or Limited Transmit Recovery enabled, or congestion algorithms illinois, woodside, westwood, cdg, chd, cubic, or vegas are selected.

Workaround

Modify TCP Auto Tuning by disabling sys db variable using the following command: tmsh modify sys db tm.tcpprogressive.autobuffertuning value disable.

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips