NORTEL-NETWORKS-MULTIPLE-SPANNING-TREE-MIB :: nnMstBridgeRoleSelectionSemState

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

All MIBs › NORTEL-NETWORKS-MULTIPLE-SPANNING-TREE-MIB › nnMstBridgeRoleSelectionSemState

nnMstBridgeRoleSelectionSemState

Module: NORTEL-NETWORKS-MULTIPLE-SPANNING-TREE-MIB

OID (symbolic): NORTEL-NETWORKS-MULTIPLE-SPANNING-TREE-MIB::nnMstBridgeRoleSelectionSemState

OID (numeric): 1.3.6.1.4.1.45.5.5.1.2.1.9

Node type: OBJECT-TYPE

Type: INTEGER

Access: read-only

Description: Current state of the Port Role Selection State Machine for this spanning tree instance for this bridge.

What is nnMstBridgeRoleSelectionSemState?

Reports the current state of the Port Role Selection state machine for this bridge within this spanning-tree instance: initializing, or actively selecting roles.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.45.5.5.1.2.1.9
snmpwalk -v2c -c public <target> NORTEL-NETWORKS-MULTIPLE-SPANNING-TREE-MIB::nnMstBridgeRoleSelectionSemState

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.45.5.5.1.2.1.9.1
snmpget -v2c -c public <target> NORTEL-NETWORKS-MULTIPLE-SPANNING-TREE-MIB::nnMstBridgeRoleSelectionSemState.1

SNMPv3 example:

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

Start monitoring Nortel Networks Layer 2 switch (Multiple Spanning Tree) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the NORTEL-NETWORKS-MULTIPLE-SPANNING-TREE-MIB::nnMstBridgeRoleSelectionSemState OID value, configure state conditions and alerts, and monitor any Nortel Networks Layer 2 switch (Multiple Spanning Tree) from a single console.

OID Breakdown

Upper-level ancestors (8 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
1.3.6.1.4.1.45synopticsCMU-MIB
1.3.6.1.4.1.45.5bayStackMibsSYNOPTICS-ROOT-MIB
Numeric OIDNameModule
1.3.6.1.4.1.45.5.5nnMultipleSpanningTreeMibNORTEL-NETWORKS-MULTIPLE-SPANNING-TREE-MIB
1.3.6.1.4.1.45.5.5.1nnMstObjectsNORTEL-NETWORKS-MULTIPLE-SPANNING-TREE-MIB
1.3.6.1.4.1.45.5.5.1.2nnMstBridgeTableNORTEL-NETWORKS-MULTIPLE-SPANNING-TREE-MIB
1.3.6.1.4.1.45.5.5.1.2.1nnMstBridgeEntryNORTEL-NETWORKS-MULTIPLE-SPANNING-TREE-MIB
1.3.6.1.4.1.45.5.5.1.2.1.9nnMstBridgeRoleSelectionSemStateNORTEL-NETWORKS-MULTIPLE-SPANNING-TREE-MIB