IEEE8021-MSTP-MIB :: ieee8021MstpCistPortRole

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsIEEE8021-MSTP-MIBieee8021MstpCistPortRole

ieee8021MstpCistPortRole

Module: IEEE8021-MSTP-MIB

OID (symbolic): IEEE8021-MSTP-MIB::ieee8021MstpCistPortRole

OID (numeric): 1.3.111.2.802.1.1.6.1.3.1.14

Node type: OBJECT-TYPE

Type: INTEGER

Access: read-only

Description: The current Port Role for the Port (i.e., Root, Alternate, Designated, or Backup), for the CIST.

What is ieee8021MstpCistPortRole?

The current spanning-tree role of this port for the CIST: root(1) (the port toward the root bridge), designated(3) (the port responsible for this segment), alternate(2) (a backup path that's currently blocking), or backup(4) (a redundant path to the same segment).

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.111.2.802.1.1.6.1.3.1.14
snmpwalk -v2c -c public <target> IEEE8021-MSTP-MIB::ieee8021MstpCistPortRole

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.111.2.802.1.1.6.1.3.1.14.1
snmpget -v2c -c public <target> IEEE8021-MSTP-MIB::ieee8021MstpCistPortRole.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::ieee8021MstpCistPortRole 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
1.3.111.2.802.1.1.6.1.3ieee8021MstpCistPortTableIEEE8021-MSTP-MIB
1.3.111.2.802.1.1.6.1.3.1ieee8021MstpCistPortEntryIEEE8021-MSTP-MIB
1.3.111.2.802.1.1.6.1.3.1.14ieee8021MstpCistPortRoleIEEE8021-MSTP-MIB