All MIBs › CTRON-BRIDGE-MIB › ctPvstStpMode
ctPvstStpMode
Module: CTRON-BRIDGE-MIB
OID (symbolic): CTRON-BRIDGE-MIB::ctPvstStpMode
OID (numeric): 1.3.6.1.4.1.52.4.1.2.3.2.2.1
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-write
Description: Specifies whether the switch is in 802.1D/Q single spanning tree mode, or PVST mode. If the switch is configured with PVST information for some VLANs, setting this object to dot1qMode(1) will cause it to ignore the PVST settings and move all VLANs into the single 802.1Q spanning tree.
What is ctPvstStpMode?
This read-write enumerated integer selects whether the switch runs a single 802.1D/Q spanning tree across all VLANs (dot1qMode) or a Per-VLAN Spanning Tree with one instance per VLAN (pvstMode). An administrator sets this when deciding between simpler single-tree topology management and per-VLAN load-balancing flexibility, being aware that switching to dot1qMode discards any existing PVST configuration for individual VLANs. For example, before migrating a multi-VLAN switch to interoperate with a vendor requiring standard 802.1Q spanning tree, the admin sets this object to dot1qMode(1), collapsing all VLANs into one shared tree.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.52.4.1.2.3.2.2.1 snmpwalk -v2c -c public <target> CTRON-BRIDGE-MIB::ctPvstStpMode
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.52.4.1.2.3.2.2.1.1 snmpget -v2c -c public <target> CTRON-BRIDGE-MIB::ctPvstStpMode.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.52.4.1.2.3.2.2.1.1 i <value>
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OID Breakdown
Upper-level ancestors (11 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 |
| 1.3.6.1.4.1.52 | cabletron | Cabletron-MIB |
| 1.3.6.1.4.1.52.4 | mibs | CTRON-AP3000-MIB |
| 1.3.6.1.4.1.52.4.1 | ctron | CTRON-MIB-NAMES |
| 1.3.6.1.4.1.52.4.1.2 | ctDataLink | CTRON-MIB-NAMES |
| 1.3.6.1.4.1.52.4.1.2.3 | ctBridge | CTRON-MIB-NAMES |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.52.4.1.2.3.2 | ctBridgeStp | CTRON-BRIDGE-MIB |
| 1.3.6.1.4.1.52.4.1.2.3.2.2 | ctBridgePvst | CTRON-BRIDGE-MIB |
| 1.3.6.1.4.1.52.4.1.2.3.2.2.1 | ctPvstStpMode | CTRON-BRIDGE-MIB |