All MIBs › CISCO-VTP-MIB › vtpVlanStpType
vtpVlanStpType
Module: CISCO-VTP-MIB
OID (symbolic): CISCO-VTP-MIB::vtpVlanStpType
OID (numeric): 1.3.6.1.4.1.9.9.46.1.3.1.1.9
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-only
Description: The type of the Spanning Tree Protocol (STP) running on this VLAN. This object is only instanciated when the value of the corresponding instance of vtpVlanType has a value of 'fddiNet' or 'trNet'.
The value returned by this object depends upon the value of the corresponding instance of vtpVlanEditStpType.
- 'ieee' indicates IEEE STP is running exclusively.
- 'ibm' indicates IBM STP is running exclusively.
- 'hybrid' indicates a STP that allows a combination of IEEE and IBM is running.
The 'hybrid' STP type results from tokenRing/fddi VLANs that are children of this trNet/fddiNet parent VLAN being configured in a combination of SRT and SRB vtpVlanBridgeTypes while the instance of vtpVlanEditStpType that corresponds to this object is set to 'auto'.
What is vtpVlanStpType?
This read-only INTEGER reports which Spanning Tree Protocol variant, IEEE, IBM, or a hybrid of both, is actually running on a VLAN of type fddiNet or trNet. An administrator uses this to confirm which STP flavor took effect after configuring vtpVlanEditStpType, particularly in mixed environments where hybrid behavior can occur. For example, a VLAN reported as hybrid tells the admin that both IEEE and IBM STP variants are active simultaneously across that VLAN's segment, based on the mix of bridge types present.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.9.9.46.1.3.1.1.9 snmpwalk -v2c -c public <target> CISCO-VTP-MIB::vtpVlanStpType
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.9.9.46.1.3.1.1.9.1 snmpget -v2c -c public <target> CISCO-VTP-MIB::vtpVlanStpType.1
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OID Breakdown
Upper-level ancestors (8 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 |
| 1.3.6.1.4.1.9 | cisco | CAT2600-MIB |
| 1.3.6.1.4.1.9.9 | ciscoMgmt | CISCO-SMI |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.9.9.46 | ciscoVtpMIB | CISCO-VTP-MIB |
| 1.3.6.1.4.1.9.9.46.1 | vtpMIBObjects | CISCO-VTP-MIB |
| 1.3.6.1.4.1.9.9.46.1.3 | vlanInfo | CISCO-VTP-MIB |
| 1.3.6.1.4.1.9.9.46.1.3.1 | vtpVlanTable | CISCO-VTP-MIB |
| 1.3.6.1.4.1.9.9.46.1.3.1.1 | vtpVlanEntry | CISCO-VTP-MIB |
| 1.3.6.1.4.1.9.9.46.1.3.1.1.9 | vtpVlanStpType | CISCO-VTP-MIB |