Bug ID 475677: Connections may hang until timeout if a LTM policy action failed

Last Modified: Sep 13, 2023

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

Known Affected Versions:
11.5.1 HF2, 11.5.1 HF3, 11.5.1 HF4, 11.5.1 HF5, 11.5.1 HF6, 11.5.1 HF7, 11.5.1 HF8, 11.5.1 HF9, 11.5.1 HF10, 11.5.1 HF11, 11.5.2 HF1, 11.5.3 HF1, 11.5.3 HF2, 11.5.4 HF1, 11.5.4 HF2, 11.5.4 HF3, 11.5.4 HF4, 11.5.1, 11.5.2, 11.5.3, 11.5.4, 11.5.5, 11.5.6, 11.5.7, 11.5.8, 11.5.9, 11.5.10, 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, 11.6.1 HF2

Opened: Aug 15, 2014

Severity: 3-Major

Related Article: K05101350

Symptoms

When an LTM policy action that takes place during an HTTP request or response fails (which is very rare), the affected connection hangs until a timeout occurs.

Impact

When an LTM policy action fails, affected connections hang until they time out.

Conditions

This issue occurs when you attach an LTM policy to a virtual with a rule that has an action that fails. Now send a request that matches that rule. The command 'tmsh show ltm policy' will show the action failed, but the connection 'hangs' until timeout.

Workaround

This issue has no workaround at this time.

Fix Information

When an LTM policy action fails, the affected connection no longer hangs until timeout, but rather gets reset immediately.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips