Bug ID 500317: With FastL4, loose-init enabled and loose-close disabled, connections may not be immediately closed.

Last Modified: Jul 12, 2023

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

Known Affected Versions:
11.4.1

Opened: Jan 09, 2015

Severity: 3-Major

Symptoms

When using FastL4, connection might not be immediately removed from the connection table, taking up to 60 seconds until they are removed.

Impact

Connections are not immediately removed from the connection table. This can result by impacting traffic by using up more memory on the unit.

Conditions

This requires a FastL4 with loose-init enabled and loose-close disabled.

Workaround

Disable loose-init or enable loose-close.

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips