Bug ID 536690: Occasional host-tmm connections within a chassis will fail (affects APM processes trying to connect to a tmm)

Last Modified: Sep 13, 2023

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

Known Affected Versions:
11.4.1, 11.5.3, 11.6.0, 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, 11.5.4, 11.4.1 HF10

Opened: Jul 30, 2015

Severity: 1-Blocking

Related Article: K82591051


When using features that require a process on the host to connect to a specific tmm within a chassis, those connections sometimes fail. This can result in improper behavior of the feature, such as failure to create sessions in APM.


Possible service failure, such as disallowing entry to APM.


Using a module and feature that requires host-tmm communication within a chassis.



Fix Information

Host-to-tmm connections within a chassis no longer fail.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips