Bug ID 851441: Improvement to MRF to enable spreading outgoing connections across TMMs

Last Modified: Oct 06, 2020

Bug Tracker

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

Known Affected Versions:
15.1.0, 15.1.0.1, 15.1.0.2, 15.1.0.3, 15.1.0.4, 15.1.0.5

Fixed In:
16.0.0

Opened: Nov 20, 2019
Severity: 4-Minor

Symptoms

In systems with a low number of connections, these connections may all exist on the same TMM. This causes uneven CPU usage and prematurely limits maximum message throughput.

Impact

-- Uneven CPU usage. -- The system will likely not reach the expected throughput.

Conditions

-- Systems with a low number of connections. -- Connections are not evenly distributed between TMMs. -- This issue is exacerbated when the maximum message throughput is set to a lower value.

Workaround

None.

Fix Information

With this change, the system can be configured to create new outgoing connections on a different TMM than the TMM that is processing the traffic. This enables better CPU distribution and higher throughput.

Behavior Change