Bug ID 428864: Lowering virtual server connection limit does not work when traffic is being processed

Last Modified: Oct 16, 2023

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

Known Affected Versions:
11.6.2 HF1, 11.2.1, 11.3.0, 11.4.0, 11.4.1, 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, 12.1.0 HF1, 12.1.0 HF2, 12.1.1 HF1, 12.1.1 HF2, 12.1.2 HF1, 12.1.2 HF2

Fixed In:
12.0.0, 11.5.1 HF6, 11.4.1 HF6, 11.2.1 HF11

Opened: Aug 26, 2013

Severity: 3-Major

Related Article: K15248

Symptoms

Lowering the virtual server connection limit does not work when traffic is already being processed.

Impact

New virtual server configuration does not use the new, lower value to limit the number of connections. It will remain this way until the connection count goes below the new threshold.

Conditions

This occurs when: -- The virtual server has a connection limit set. -- The virtual server is processing traffic. -- The virtual server connection limit is reset to a lower value.

Workaround

Change virtual server connection limit configuration when there is no traffic.

Fix Information

Lowering the virtual server connection limit now works, even when traffic is already being processed

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips