Bug ID 486066: TMM cored with Assertion "listener unbound" failed

Last Modified: Jan 29, 2026

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

Known Affected Versions:
11.5.1, 11.5.1 HF1, 11.5.1 HF2, 11.5.1 HF3, 11.5.1 HF4, 11.5.1 HF5

Fixed In:
11.5.1 HF6

Opened: Oct 22, 2014

Severity: 2-Critical

Symptoms

TMM CORE panic: ../base/listener.c:303:Assertion "listener unbound" failed

Impact

Traffic disrupted while tmm restarts.

Conditions

LTM has virtual servers configured with clone-pools.

Workaround

This issue has no workaround at this time.

Fix Information

TMM does not core

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips