Bug ID 2343277: Overall health status of the Controller turns Unhealthy when the FEC uncorrected error rate is critical

Last Modified: Oct 19, 2026

Affected Product(s):
F5OS F5OS-C(all modules)

Known Affected Versions:
F5OS-C 1.8.2, F5OS-C 1.8.2-HR1, F5OS-C 1.8.2-HR2, F5OS-C 1.8.2-HR3

Opened: Jun 19, 2026

Severity: 2-Critical

Symptoms

When the FEC Uncorrected Error Rate exceeds 0.01%(the threshold is crossed), the 'switch:port:fec-uncorrected-error-rate' attribute for the affected port is updated to severity="Critical" and health="Unhealthy".

Impact

The controller is marked as unhealthy, and a HA failover is triggered.

Conditions

The FEC Uncorrected Error Rate exceeds the 0.01% threshold.

Workaround

None

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips