JUNIPER-MIMSTP-MIB :: jnxMIMstMstiPortTopologyChangeSemState

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsJUNIPER-MIMSTP-MIBjnxMIMstMstiPortTopologyChangeSemState

jnxMIMstMstiPortTopologyChangeSemState

Module: JUNIPER-MIMSTP-MIB

OID (symbolic): JUNIPER-MIMSTP-MIB::jnxMIMstMstiPortTopologyChangeSemState

OID (numeric): 1.3.6.1.4.1.2636.3.46.1.1.7.1.19

Node type: OBJECT-TYPE

Type: INTEGER

Access: read-only

Description: Current state of the Topology Change State Machine for this port in this spanning tree context.

What is jnxMIMstMstiPortTopologyChangeSemState?

The current state of this port's Topology Change state machine within this specific spanning tree instance: init, inactive, active, detected, notifiedtcn, notifiedtc, propagating, or acknowledged. It shows how a topology change is propagating for one MSTI independent of the others.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.2636.3.46.1.1.7.1.19
snmpwalk -v2c -c public <target> JUNIPER-MIMSTP-MIB::jnxMIMstMstiPortTopologyChangeSemState

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.2636.3.46.1.1.7.1.19.1
snmpget -v2c -c public <target> JUNIPER-MIMSTP-MIB::jnxMIMstMstiPortTopologyChangeSemState.1

Start monitoring Juniper EX-series Ethernet switch (MIMSTP, any generation) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the JUNIPER-MIMSTP-MIB::jnxMIMstMstiPortTopologyChangeSemState OID value, configure state conditions and alerts, and monitor any Juniper EX-series Ethernet switch (MIMSTP, any generation) 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
1.3.6.1.4.1.2636juniperMIBJUNIPER-SMI
1.3.6.1.4.1.2636.3jnxMibsJUNIPER-SMI
1.3.6.1.4.1.2636.3.46jnxXstpMibsJUNIPER-SMI
Numeric OIDNameModule
1.3.6.1.4.1.2636.3.46.1jnxMIMstMIBJUNIPER-MIMSTP-MIB
1.3.6.1.4.1.2636.3.46.1.1jnxMIDot1sJuniperMstJUNIPER-MIMSTP-MIB
1.3.6.1.4.1.2636.3.46.1.1.7jnxMIMstMstiPortTableJUNIPER-MIMSTP-MIB
1.3.6.1.4.1.2636.3.46.1.1.7.1jnxMIMstMstiPortEntryJUNIPER-MIMSTP-MIB
1.3.6.1.4.1.2636.3.46.1.1.7.1.19jnxMIMstMstiPortTopologyChangeSemStateJUNIPER-MIMSTP-MIB