Bug ID 435600: Empty policies, when applied to a virtual can cause tmm to crash

Last Modified: Jul 12, 2023

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

Known Affected Versions:
11.4.0, 11.4.1

Fixed In:
11.5.0, 11.4.1 HF2, 11.4.1 HF2

Opened: Oct 28, 2013

Severity: 1-Blocking

Related Article: K17087


When a policy contains no rules, or it has rules, but the rules have neither conditions nor actions. This policy can cause a TMM crash when applied to a virtual server.


TMM restarts continuously.


Create an ltm policy, without rules, or add a single rule without conditions or actions. Apply this policy to a virtual server.


An LTM policy without rules or with only rules that have no actions nor conditions has no purpose. The work-around is to not apply such a policy to a virtual server.

Fix Information

When applying empty policies to a virtual server, the TMM no longer crashes.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips