Bug ID 652400: During blade changes, PBA may cause a TMM restart

Last Modified: Oct 06, 2020

Bug Tracker

Affected Product:  See more info
BIG-IP CGN(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

Fixed In:

Opened: Mar 20, 2017
Severity: 3-Major


TMM will restart, and an ASSERT will appear in the logs that there have been too many retries.


TMM will restart, so existing blocks and connections will be lost. Traffic disrupted while tmm restarts.


-- A port block allocation configuration with very high CPU utilization. -- The addition of a new blade. -- Running a version earlier than 12.0.0.


There is no workaround.

Fix Information


Behavior Change