All MIBs › CTRON-BRIDGE-MIB › ctPvstMaxNumStp
ctPvstMaxNumStp
Module: CTRON-BRIDGE-MIB
OID (symbolic): CTRON-BRIDGE-MIB::ctPvstMaxNumStp
OID (numeric): 1.3.6.1.4.1.52.4.1.2.3.2.2.2
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-only
Description: Returns maximum number of spanning trees that this device can implement. This will limit the number of VLANs that can be configured with distinct spanning trees.
What is ctPvstMaxNumStp?
This read-only integer, bounded between 1 and 4094, reports the maximum number of independent Per-VLAN Spanning Tree instances the device is capable of running simultaneously. An administrator checks this value when planning how many VLANs can each get their own dedicated spanning tree versus needing to share one, since it caps scalability for PVST deployments. For example, before provisioning 500 VLANs each with distinct STP timers, the admin first queries this object to confirm the switch supports at least that many spanning tree instances.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.52.4.1.2.3.2.2.2 snmpwalk -v2c -c public <target> CTRON-BRIDGE-MIB::ctPvstMaxNumStp
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.52.4.1.2.3.2.2.2.1 snmpget -v2c -c public <target> CTRON-BRIDGE-MIB::ctPvstMaxNumStp.1
Start monitoring Cabletron/Enterasys network switch (bridge/spanning tree) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the CTRON-BRIDGE-MIB::ctPvstMaxNumStp OID value, configure state conditions and alerts, and monitor any Cabletron/Enterasys network switch (bridge/spanning tree) from a single console.
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 |
| 1.3.6.1.4.1.52.4.1.2.3.2.2.2 | ctPvstMaxNumStp | CTRON-BRIDGE-MIB |