All MIBs › CTRON-BRIDGE-MIB › ctPvstNumStps
ctPvstNumStps
Module: CTRON-BRIDGE-MIB
OID (symbolic): CTRON-BRIDGE-MIB::ctPvstNumStps
OID (numeric): 1.3.6.1.4.1.52.4.1.2.3.2.2.3
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-write
Description: When read, this returns the number of PVST spanning trees active in the switch, which should correspond to the number of entries in ctPvstStpTable. When written with 4094, it should create a spanning tree for each currently configured VLAN. If a switch cannot create as many spanning trees as configured VLANs, this write should return an error. Writing any value other than 4094 should return an error.
What is ctPvstNumStps?
This read-write integer, ranging 1 to 4094, reports the number of active PVST spanning trees on read, corresponding to the row count of ctPvstStpTable, while a write of 4094 requests the switch create a distinct tree for every currently configured VLAN. An administrator uses this to both audit how many per-VLAN trees are running and to bulk-provision one spanning tree per VLAN in a single operation, understanding the switch may cap the count if hardware limits are exceeded. For example, after adding 50 new VLANs, the admin writes 4094 to this object to trigger automatic per-VLAN tree creation rather than configuring each one manually.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.52.4.1.2.3.2.2.3 snmpwalk -v2c -c public <target> CTRON-BRIDGE-MIB::ctPvstNumStps
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.52.4.1.2.3.2.2.3.1 snmpget -v2c -c public <target> CTRON-BRIDGE-MIB::ctPvstNumStps.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.52.4.1.2.3.2.2.3.1 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 |
| 1.3.6.1.4.1.52.4.1.2.3.2.2.3 | ctPvstNumStps | CTRON-BRIDGE-MIB |