Bug ID 806909: TMM may produce a core on a standby device

Last Modified: Nov 07, 2022

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

Known Affected Versions:
11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4, 11.6.0 HF5, 11.6.0 HF6, 11.6.0 HF7, 11.6.0 HF8, 11.6.1, 11.6.1 HF1, 11.6.1 HF2, 11.6.2, 11.6.2 HF1, 11.6.3,,,,, 11.6.4, 11.6.5,,,

Opened: Jul 17, 2019

Severity: 3-Major


Tmm cores on the standby device.


On a Standby BIG-IP unit, traffic is disrupted while tmm restarts.


Detailed condition is still unknown. So far, this issue is observed under the following configuration. -- Connection mirroring is enabled on Standard type of virtual server. -- High availability (HA) configured.



Fix Information


Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips