Bug ID 748443: Higig MAC recovery mechanism may fail continuously during run time

Last Modified: May 23, 2019

Bug Tracker

Affected Product:  See more info
BIG-IP All(all modules)

Known Affected Versions:
13.1.0,,,,,,,,, 13.1.1,,,,,

Fixed In:

Opened: Nov 01, 2018
Severity: 3-Major


At runtime, the Higig MAC recovery mechanism might be triggered due to FCS errors. Normally, the recovery mechanism will recover from the issue. However, if it does not recover, the mechanism will continue to run over and over again.


The blade will stay at Inoperative state and not able to pass traffic


May related to the traffic pattern the blade is processing.


Manually reboot the blade.

Fix Information

The blade will now reboot if fcs recovery is not able to fix the link. The reboot can be disabled by DB variable tmm.hsb.hgmfcsresetaction

Behavior Change