IEEE8021-MSTP-MIB :: ieee8021MstpCistPortAutoIsolatePort

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsIEEE8021-MSTP-MIBieee8021MstpCistPortAutoIsolatePort

ieee8021MstpCistPortAutoIsolatePort

Module: IEEE8021-MSTP-MIB

OID (symbolic): IEEE8021-MSTP-MIB::ieee8021MstpCistPortAutoIsolatePort

OID (numeric): 1.3.111.2.802.1.1.6.1.8.1.2

Node type: OBJECT-TYPE

Type: TruthValue

Access: read-only

Description: The operational value of the Isolate Port parameter.

A value of true(1) indicates a Designated Port will transition to discarding if both ieee8021SpanningTreeRstpPortAdminEdgePort and ieee8021SpanningTreeRstpPortAutoEdgePort are FALSE and the other Bridge presumed to be attached to the same point-to-point LAN does not transmit periodic BPDUs.

This is optional and provided only by implementations that support the automatic identification of fragile Bridges.

What is ieee8021MstpCistPortAutoIsolatePort?

True(1) if this designated port will transition to discarding when it's not administratively or automatically marked as an edge port and the presumed point-to-point neighbor stops sending periodic BPDUs — a safeguard against a port being left forwarding toward a bridge that silently disappeared; only meaningful on implementations that support automatic fragile-bridge detection.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.111.2.802.1.1.6.1.8.1.2
snmpwalk -v2c -c public <target> IEEE8021-MSTP-MIB::ieee8021MstpCistPortAutoIsolatePort

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.111.2.802.1.1.6.1.8.1.2.1
snmpget -v2c -c public <target> IEEE8021-MSTP-MIB::ieee8021MstpCistPortAutoIsolatePort.1

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OID Breakdown

Upper-level ancestors (3 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.111.2.802.1.1ieee802dot1mibsIEEE8021-TC-MIB
Numeric OIDNameModule
1.3.111.2.802.1.1.6ieee8021MstpMibIEEE8021-MSTP-MIB
1.3.111.2.802.1.1.6.1ieee8021MstpObjectsIEEE8021-MSTP-MIB
1.3.111.2.802.1.1.6.1.8ieee8021MstpCistPortExtensionTableIEEE8021-MSTP-MIB
1.3.111.2.802.1.1.6.1.8.1ieee8021MstpCistPortExtensionEntryIEEE8021-MSTP-MIB
1.3.111.2.802.1.1.6.1.8.1.2ieee8021MstpCistPortAutoIsolatePortIEEE8021-MSTP-MIB