Bug ID 1635729: Restrict Multiple STP protocol selection

Last Modified: Oct 19, 2025

Affected Product(s):
F5OS F5OS-A, Install/Upgrade(all modules)

Known Affected Versions:
F5OS-A 1.8.0, F5OS-A 1.8.3

Opened: Sep 02, 2024

Severity: 3-Major

Symptoms

The stp global config command allows you to configure multiple STP modes, but this should not be allowed. In platform.log you see fpgamgr[15]: priority="Err" version=1.0 msgid=0x302000000000011 msg="Unexpected STP configuration." DESCRIPTION="Multiple protocols enabled. Selecting NONE".

Impact

Can lead to upgrade failures. Configuration data displayed is not consistent.

Conditions

More than one protocol is configured at once, for example: stp global config enabled-protocol [ STP RSTP MSTP ]

Workaround

Make sure only one protocol is configured at a given time.

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips