Users Guide

STP system log message reference
This section lists the system log messages that are generated by the STP process.
Table 47. STP system log messages
System log message Severity Description Recommended action
%STP_BPDU_GUARD_ERR:
STP: BPDU received on BPDU
guard enabled port.
Informational The spanning-tree bpduguard
enable command is configured on
an interface(s) and OS10 is reporting
that the interface received a BPDU.
The interface is brought down and
placed in ERR_DISABLE mode.
BPDU received on BPDU guard
enabled port.%s
Remove the device which is
transmitting STP BPDU to
the BPDU guard enabled port
and place an edge device.
%STP_BPDU_GUARD_CLR:
STP: BPDU Guard violation
cleared.
Informational BPDU guard enabled port stopped
receiving STP BPDU from peer
device. BPDU Guard violation
cleared.%s
No action required.
%STP_MAX_INST_REACHED:
STP: Spanning tree maximum
instance
Critical Rapid-PVST per VLAN STG instance
reached the hardware limit. After
this system log , Rapid-PVST cannot
allocate new STG instance for the
new VLANs being created. Spanning
tree maximum instance %d
reached.
Change the STP mode to
RSTP or MSTP. You can
change the mode to RSTP or
MSTP using the spanning-
tree mode {rstp | mst
| rapid-pvst} command.
%STP_FREE_INST_AVAILABLE:
STP: Spanning tree free instance
available.
Informational Free HW STG instances are available
and RPVST can allocate/use the
free STG instance for further VLANs
configured. Spanning tree free instance
available.
No action required.
%STP_ROOT_CHANGE:
STP:Root Brg Chg
Informational STP root bridge is changed. If the
active STP flavor is RPVST: RPVST
root changed for vlan %d. My
ID:%sOldRt:%s NewRt:%s If the active
STP flavor is MSTP: MSTP root
changed for instance %d.
My ID:%sOldRt:%s NewRt:%s If
the active STP flavor is
RSTP: RSTP root changed. My
ID:%sOldRt:%s NewRt:%s
No action required.
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STP system log message reference 75