Bug ID 557548: TMM can continuously attempt to reset failing Nitrox

Last Modified: Sep 13, 2023

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

Known Affected Versions:
11.5.1, 11.5.2, 11.5.3, 11.5.4, 11.5.5, 11.5.6, 11.5.7, 11.5.8, 11.5.9, 11.5.10

Fixed In:

Opened: Nov 11, 2015

Severity: 3-Major


If a Nitrox crypto accelerator chip fails, TMM will attempt to reset it to clear the failure condition. If the Nitrox failure is permanent, TMM will continuously attempt to reset the Nitrox, adversely impacting traffic flow. You will see errors in /var/log/ltm that say "crit tmm[12809]: 01010025:2: Device error: cn0 device soft resetting"


Loss of traffic.


This occurs when one of the Nitrox crypto accelerator chips fails.



Fix Information

TMM has been changed to stop trying to reset the Nitrox after 3 attempts.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips