Last Modified: Jul 15, 2026
Affected Product(s):
F5OS F5OS-C, Velos
Known Affected Versions:
F5OS-C 1.8.2
Fixed In:
F5OS v2.0.0
Opened: Dec 04, 2025 Severity: 3-Major
On software upgrade v1.7.x to v1.8.x and later releases following with a firmware upgrade, it is observed that the power field in the slot operdata may fluctuate. This behavior can cause switchd to incorrectly detect that the slot's dataplane ports require reconfiguration, resulting in a link flap on the affected blade dataplane port(s) This will show up in the blade fpga manager as VOQ watchdog timeouts.
Degraded dataplane performance and TMM HA failovers.
Upgrade from v1.7.x to v1.8.x and later that also involve a firmware update.
Reboot system controllers and / or impacted blades.
Switchd configures the dataplane ports of a slot only in response to changes in slot presence or blade type