IEEE8021-MSTP-MIB :: ieee8021MstpRootPort

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsIEEE8021-MSTP-MIBieee8021MstpRootPort

ieee8021MstpRootPort

Module: IEEE8021-MSTP-MIB

OID (symbolic): IEEE8021-MSTP-MIB::ieee8021MstpRootPort

OID (numeric): 1.3.111.2.802.1.1.6.1.2.1.9

Node type: OBJECT-TYPE

Type: IEEE8021BridgePortNumber

Access: read-only

Description: In an MSTP Bridge, the Root Port parameter value, i.e., the Root Port for the MSTI.

What is ieee8021MstpRootPort?

The port number of this bridge's Root Port for this MST Instance — the port through which traffic reaches the root — useful for confirming which uplink is actually carrying the shortest path for a given VLAN instance.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.111.2.802.1.1.6.1.2.1.9
snmpwalk -v2c -c public <target> IEEE8021-MSTP-MIB::ieee8021MstpRootPort

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.111.2.802.1.1.6.1.2.1.9.1
snmpget -v2c -c public <target> IEEE8021-MSTP-MIB::ieee8021MstpRootPort.1

Start monitoring Vendor-neutral IEEE 802.1s standard (enterprise/campus Ethernet bridge or switch, MSTP) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the IEEE8021-MSTP-MIB::ieee8021MstpRootPort OID value, configure state conditions and alerts, and monitor any Vendor-neutral IEEE 802.1s standard (enterprise/campus Ethernet bridge or switch, MSTP) from a single console.

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
1.3.111.2.802.1.1.6.1.2ieee8021MstpTableIEEE8021-MSTP-MIB
1.3.111.2.802.1.1.6.1.2.1ieee8021MstpEntryIEEE8021-MSTP-MIB
1.3.111.2.802.1.1.6.1.2.1.9ieee8021MstpRootPortIEEE8021-MSTP-MIB