PRVT-MST-MIB :: mSTInstanceRootCost

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsPRVT-MST-MIBmSTInstanceRootCost

mSTInstanceRootCost

Module: PRVT-MST-MIB

OID (symbolic): PRVT-MST-MIB::mSTInstanceRootCost

OID (numeric): 1.3.6.1.4.1.738.1.5.107.1.2.3.1.2

Node type: OBJECT-TYPE

Type: Integer32

Access: read-only

Description: The path cost of the root Port of this MST. This value is compared to the Root Path Cost field in received bridge PDUs.

What is mSTInstanceRootCost?

This read-only Integer32 reports the path cost from this bridge to the root for a given MST instance, which the bridge compares against the Root Path Cost field in received BPDUs to determine the best path.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.738.1.5.107.1.2.3.1.2
snmpwalk -v2c -c public <target> PRVT-MST-MIB::mSTInstanceRootCost

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.738.1.5.107.1.2.3.1.2.1
snmpget -v2c -c public <target> PRVT-MST-MIB::mSTInstanceRootCost.1

SNMPv3 example:

snmpget -v3 -l authPriv -u snmpv3-user -a SHA -A "AuthPassword1" -x AES -X "PrivPassword1" <target> mSTInstanceRootCost.1

Start monitoring BATM Advanced Communication switches (802.1s MSTP) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the PRVT-MST-MIB::mSTInstanceRootCost OID value, configure state conditions and alerts, and monitor any BATM Advanced Communication switches (802.1s MSTP) 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
1.3.6.1.4.1.738privateVendorOIDPRIV-VENDORDEF-MIB
1.3.6.1.4.1.738.1prvt_productsPRVT-SWITCH-MIB
1.3.6.1.4.1.738.1.5switchPRVT-SWITCH-MIB
Numeric OIDNameModule
1.3.6.1.4.1.738.1.5.107prvtMSTMibPRVT-MST-MIB
1.3.6.1.4.1.738.1.5.107.1prvtMSTObjectsPRVT-MST-MIB
1.3.6.1.4.1.738.1.5.107.1.2mSTBridgeParamsPRVT-MST-MIB
1.3.6.1.4.1.738.1.5.107.1.2.3mSTInstanceTablePRVT-MST-MIB
1.3.6.1.4.1.738.1.5.107.1.2.3.1mSTInstanceEntryPRVT-MST-MIB
1.3.6.1.4.1.738.1.5.107.1.2.3.1.2mSTInstanceRootCostPRVT-MST-MIB