NBFSM_System Error Messages
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Diagnostic and System Error Messages Version 3.1.x Reference Guide
NBFSM_System Error Messages
NBFSM is a part of the Fabric Shortest Path First (FSPF) protocol that handles a
neighboring or adjacent switch’s Finite State Machine.
Input to FSM is an event that moves a neighboring or adjacent switch (directly
connected to the local switch) from one state to another, based on specific events.
For example, when two switches are connected to each other using an ISL
(interswitch link) cable, they will be in the Init State. After both switches receive
HELLO messages, they move to the Database Exchange State, and so on.
NBFSM states are Down (0), Init (1), Database Exchange (2), Database
Acknowledge Wait (3), Database Wait (4), and Full (5).
Message
Explanation
A duplicate E_Port State Change Number was reported.
Recommended Action
No action required.
Severity
Debug
NBFSM-DUPEPORTSCN
<switch number> Debug NBFSM-DUPEPORTSCN, 5, Duplicate E_Port SCN from port
<port number> in state <state change number>