Bug ID 586587: RatePaceMaxRate functionality does not work for the TCP flows where the round-trip time (RTT) is less than 6ms.

Last Modified: Oct 01, 2018

Bug Tracker

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

Known Affected Versions:
12.0.0, 12.0.0 HF1, 12.0.0 HF2, 12.0.0 HF3, 12.0.0 HF4, 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

Fixed In:
13.0.0, 12.1.3.6

Opened: Apr 11, 2016
Severity: 2-Critical

Symptoms

RatePaceMaxRate functionality does not work for the TCP flows where the round-trip time (RTT) is less than 6ms. That results in sending data at higher rates than specified Max Rate.

Impact

Packet loss might happen (queue overflow) due to sending at higher data rate than the specified max rate.

Conditions

RTT is less than 6ms.

Workaround

None.

Fix Information

RatePaceMaxRate works as expected, irrespective of latency.

Behavior Change