Last Modified: Jul 15, 2026
Affected Product(s):
F5OS F5OS-A
Known Affected Versions:
F5OS-A 1.8.0, F5OS-A 1.8.1, F5OS-A 1.8.2, F5OS-A 1.8.3, F5OS-A 1.8.4
Fixed In:
F5OS v2.0.0
Opened: Jan 30, 2025 Severity: 2-Critical
F5OS fails to change the port to BLOCK based on STP Path Cost.
The port is not blocked in the STP topology which leads to loop.
Large path cost applied to a port that is still in a Forwarding state.
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