All MIBs › ALCATEL-IND1-VLAN-STP-MIB › vStpInsRootPortNumber
vStpInsRootPortNumber
Module: ALCATEL-IND1-VLAN-STP-MIB
OID (symbolic): ALCATEL-IND1-VLAN-STP-MIB::vStpInsRootPortNumber
OID (numeric): 1.3.6.1.4.1.6486.801.1.2.1.12.1.1.1.1.1.10
Node type: OBJECT-TYPE
Type: Integer32
Access: read-only
Description: The ifindex of the port which offers the lowest cost path from this bridge to the root bridge for this spanning tree instance.
What is vStpInsRootPortNumber?
This read-only field contains the interface index of the port offering the lowest-cost path to the root bridge. Network engineers check this to verify correct path selection and ensure traffic to the root uses the optimal link. If this value frequently changes, the topology is unstable.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.6486.801.1.2.1.12.1.1.1.1.1.10 snmpwalk -v2c -c public <target> ALCATEL-IND1-VLAN-STP-MIB::vStpInsRootPortNumber
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.6486.801.1.2.1.12.1.1.1.1.1.10.1 snmpget -v2c -c public <target> ALCATEL-IND1-VLAN-STP-MIB::vStpInsRootPortNumber.1
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OID Breakdown
Upper-level ancestors (12 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 |
| 1.3.6.1.4.1.6486 | alcatel | ALCATEL-IND1-BASE |
| 1.3.6.1.4.1.6486.801 | alcatelIND1BaseMIB | ALCATEL-IND1-BASE |
| 1.3.6.1.4.1.6486.801.1 | alcatelIND1Management | ALCATEL-IND1-BASE |
| 1.3.6.1.4.1.6486.801.1.2 | managementIND1Software | ALCATEL-IND1-BASE |
| 1.3.6.1.4.1.6486.801.1.2.1 | softwareIND1Entities | ALCATEL-IND1-BASE |
| 1.3.6.1.4.1.6486.801.1.2.1.12 | softentIND1VlanStp | ALCATEL-IND1-BASE |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.6486.801.1.2.1.12.1 | alcatelIND1VLANSTPMIB | ALCATEL-IND1-VLAN-STP-MIB |
| 1.3.6.1.4.1.6486.801.1.2.1.12.1.1 | alcatelIND1VLANSTPMIBObjects | ALCATEL-IND1-VLAN-STP-MIB |
| 1.3.6.1.4.1.6486.801.1.2.1.12.1.1.1 | vStpInfo | ALCATEL-IND1-VLAN-STP-MIB |
| 1.3.6.1.4.1.6486.801.1.2.1.12.1.1.1.1 | vStpInsTable | ALCATEL-IND1-VLAN-STP-MIB |
| 1.3.6.1.4.1.6486.801.1.2.1.12.1.1.1.1.1 | vStpInsEntry | ALCATEL-IND1-VLAN-STP-MIB |
| 1.3.6.1.4.1.6486.801.1.2.1.12.1.1.1.1.1.10 | vStpInsRootPortNumber | ALCATEL-IND1-VLAN-STP-MIB |