All MIBs › JUNIPER-MIMSTP-MIB › jnxMIMstMstiCurrentPortRole
jnxMIMstMstiCurrentPortRole
Module: JUNIPER-MIMSTP-MIB
OID (symbolic): JUNIPER-MIMSTP-MIB::jnxMIMstMstiCurrentPortRole
OID (numeric): 1.3.6.1.4.1.2636.3.46.1.1.7.1.15
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-only
Description: Current Port Role of the port for this spanning tree instance.
What is jnxMIMstMstiCurrentPortRole?
This read-only value indicates which spanning tree role (disabled, alternate, backup, root, designated, or master) a port currently plays in a Multiple Spanning Tree Instance (MSTI). Spanning tree prevents network loops by controlling which ports forward traffic; each port's role determines its priority and traffic handling. Network operators monitor port roles to ensure the spanning tree topology is healthy and that no unexpected role changes indicate cable moves or topology problems.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.2636.3.46.1.1.7.1.15 snmpwalk -v2c -c public <target> JUNIPER-MIMSTP-MIB::jnxMIMstMstiCurrentPortRole
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.2636.3.46.1.1.7.1.15.1 snmpget -v2c -c public <target> JUNIPER-MIMSTP-MIB::jnxMIMstMstiCurrentPortRole.1
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OID Breakdown
Upper-level ancestors (9 from the standard OID tree / other modules)
| Numeric OID | Name | Module |
|---|---|---|
| 1 | iso | LANART-AGENT |
| 1.3 | org | AirPair-MIB |
| 1.3.6 | dod | AirPair-MIB |
| 1.3.6.1 | internet | AirPair-MIB |
| 1.3.6.1.4 | private | AirPair-MIB |
| 1.3.6.1.4.1 | enterprises | AirPair-MIB |
| 1.3.6.1.4.1.2636 | juniperMIB | JUNIPER-SMI |
| 1.3.6.1.4.1.2636.3 | jnxMibs | JUNIPER-SMI |
| 1.3.6.1.4.1.2636.3.46 | jnxXstpMibs | JUNIPER-SMI |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.2636.3.46.1 | jnxMIMstMIB | JUNIPER-MIMSTP-MIB |
| 1.3.6.1.4.1.2636.3.46.1.1 | jnxMIDot1sJuniperMst | JUNIPER-MIMSTP-MIB |
| 1.3.6.1.4.1.2636.3.46.1.1.7 | jnxMIMstMstiPortTable | JUNIPER-MIMSTP-MIB |
| 1.3.6.1.4.1.2636.3.46.1.1.7.1 | jnxMIMstMstiPortEntry | JUNIPER-MIMSTP-MIB |
| 1.3.6.1.4.1.2636.3.46.1.1.7.1.15 | jnxMIMstMstiCurrentPortRole | JUNIPER-MIMSTP-MIB |