PRVT-MST-MIB :: mSTPortPerMstRoleValue

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsPRVT-MST-MIBmSTPortPerMstRoleValue

mSTPortPerMstRoleValue

Module: PRVT-MST-MIB

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

OID (numeric): 1.3.6.1.4.1.738.1.5.107.1.4.2.1.1

Node type: OBJECT-TYPE

Type: INTEGER

Access: read-only

Description: Indicates the port role on a particular MST instance for the MST protocol.

disabled -- this port has no role on this MST instance.

root -- this port has the role of root port on this MST instance.

designated -- this port has the role of designated port on this MST instance.

alternate -- this port has the role of alternate port on this MST instance.

backUp -- this port has the role of backup port on this MST instance.

boundary -- this port has the role of boundary port on this MST instance.

What is mSTPortPerMstRoleValue?

This read-only INTEGER reports a port's spanning-tree role on one specific MST instance: disabled(1) no role, root(2) the path toward the instance's root, designated(3) forwarding for its segment, alternate(4) a backup path to root, backUp(5) a backup to a designated port on the same segment, or boundary(6) a port at the region's edge for that instance.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.738.1.5.107.1.4.2.1.1
snmpwalk -v2c -c public <target> PRVT-MST-MIB::mSTPortPerMstRoleValue

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.738.1.5.107.1.4.2.1.1.1
snmpget -v2c -c public <target> PRVT-MST-MIB::mSTPortPerMstRoleValue.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::mSTPortPerMstRoleValue 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
1.3.6.1.4.1.738.1.5.107.1.4mSTPortPRVT-MST-MIB
1.3.6.1.4.1.738.1.5.107.1.4.2mSTPortPerMstTablePRVT-MST-MIB
1.3.6.1.4.1.738.1.5.107.1.4.2.1mSTPortPerMstEntryPRVT-MST-MIB
1.3.6.1.4.1.738.1.5.107.1.4.2.1.1mSTPortPerMstRoleValuePRVT-MST-MIB