TN-XSTP-MIB :: tnXstpPortStatsLllegal

MIB Reference — IPNetwork Monitor · Updated October 02, 2026

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tnXstpPortStatsLllegal

Module: TN-XSTP-MIB

OID (symbolic): TN-XSTP-MIB::tnXstpPortStatsLllegal

OID (numeric): 1.3.6.1.4.1.868.2.5.111.2.5.1.12

Node type: OBJECT-TYPE

Type: Integer32

Access: read-only

Description: The number of lllegal BPDU's received on the port.

What is tnXstpPortStatsLllegal?

Count of malformed ('illegal') BPDUs received on this port. Persistent illegal-BPDU counts warrant checking cabling, duplex mismatches, or a misconfigured/faulty neighbor switch.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.868.2.5.111.2.5.1.12
snmpwalk -v2c -c public <target> TN-XSTP-MIB::tnXstpPortStatsLllegal

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.868.2.5.111.2.5.1.12.1
snmpget -v2c -c public <target> TN-XSTP-MIB::tnXstpPortStatsLllegal.1

Start monitoring Transition Networks managed Ethernet switch (RSTP/MSTP BPDU-guard/port-recovery status) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the TN-XSTP-MIB::tnXstpPortStatsLllegal OID value, configure state conditions and alerts, and monitor any Transition Networks managed Ethernet switch (RSTP/MSTP BPDU-guard/port-recovery status) from a single console.

OID Breakdown

Upper-level ancestors (9 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.4privateAirPair-MIB
1.3.6.1.4.1enterprisesAirPair-MIB
1.3.6.1.4.1.868transitionTRANSITION-SMI
1.3.6.1.4.1.868.2productsTRANSITION-SMI
1.3.6.1.4.1.868.2.5tnProductsTRANSITION-SMI
Numeric OIDNameModule
1.3.6.1.4.1.868.2.5.111tnXSTPMIBTN-XSTP-MIB
1.3.6.1.4.1.868.2.5.111.2tnXSTPMgmtObjectsTN-XSTP-MIB
1.3.6.1.4.1.868.2.5.111.2.5tnXstpPortStatsTableTN-XSTP-MIB
1.3.6.1.4.1.868.2.5.111.2.5.1tnXstpPortStatsEntryTN-XSTP-MIB
1.3.6.1.4.1.868.2.5.111.2.5.1.12tnXstpPortStatsLllegalTN-XSTP-MIB