Last Modified: Oct 19, 2025
Affected Product(s):
F5OS F5OS-C
Known Affected Versions:
F5OS-C 1.8.1
Fixed In:
F5OS-C 1.8.2
Opened: Aug 19, 2025 Severity: 3-Major
After inserting a blade in the chassis, the blade interface state may be wiped out on the next system controller failover. Interfaces will be shown as "NOT_PRESENT" even though the blade is present and running. default-1# show interfaces interface state oper-status NAME OPER STATUS -------------------- 1/1.0 DOWN 1/2.0 DOWN 2/1.0 NOT_PRESENT 2/2.0 NOT_PRESENT 3/1.0 DOWN 3/2.0 DOWN
After the controller failover, the incorrect 'power off' event causes the partition software to erase the blade dataplane state, resulting in the blade dataplane being inoperative.
Physically inserting a blade in the chassis, followed by a controller failover after the blade finishes booting.
To avoid the issue: After inserting a blade in the chassis, cause a controller failover and then reboot the blade. To recover if the problem is encountered: Reboot the blade.
Inaccurate power events are not generated during system controller failover.