Bug ID 641001: BWC: dynamic policy category sees lower bandwidth than expected in Congested policies

Last Modified: Dec 20, 2018

Bug Tracker

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

Known Affected Versions:
12.1.0, 12.1.0 HF1, 12.1.0 HF2, 12.1.1, 12.1.1 HF1, 12.1.1 HF2, 12.1.2, 12.1.2 HF1, 12.1.2 HF2, 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

Fixed In:
13.1.0

Opened: Jan 24, 2017
Severity: 3-Major

Symptoms

When BWC policy is configured with category that is configured at lower rate than max-user-rate, when the system is congested, the system might experience lower bandwidth and is not able to fill the pipe.

Impact

Lower bandwidth is seen.

Conditions

BWC dynamic policy configured with category. The number of sessions created is greater than max-rate/max-user-rate, utilizing all the policies. For example: max-rate=10mbps, max user rate=5mbps, cat rate=3mbps.

Workaround

Configure categories at the same rate as that of max-user-rate.

Fix Information

BWC: dynamic policy category now sees the same or better bandwidth.

Behavior Change