All MIBs › MSTP-MIB › swMSTPInstLastTopologyChange
swMSTPInstLastTopologyChange
Module: MSTP-MIB
OID (symbolic): MSTP-MIB::swMSTPInstLastTopologyChange
OID (numeric): 1.3.6.1.4.1.171.12.15.2.3.1.21
Node type: OBJECT-TYPE
Type: TimeTicks
Access: read-only
Description: The time (in hundredths of a second) since the last time a topology change was detected by the bridge entity.
What is swMSTPInstLastTopologyChange?
This read-only TimeTicks value (in hundredths of a second) reports how long it's been since this bridge last detected a topology change for this instance. Admins use it to spot recent instability, a small value means a topology change happened very recently.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.171.12.15.2.3.1.21 snmpwalk -v2c -c public <target> MSTP-MIB::swMSTPInstLastTopologyChange
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.171.12.15.2.3.1.21.1 snmpget -v2c -c public <target> MSTP-MIB::swMSTPInstLastTopologyChange.1
Start monitoring Enterprise/data-center Ethernet switches with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the MSTP-MIB::swMSTPInstLastTopologyChange OID value, configure state conditions and alerts, and monitor any Enterprise/data-center Ethernet switches from a single console.
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 |
| 1.3.6.1.4.1.171 | d_link | DE1500-MIB |
| 1.3.6.1.4.1.171.12 | dlink_common_mgmt | DLINK-ID-REC-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.171.12.15 | swMSTPMIB | MSTP-MIB |
| 1.3.6.1.4.1.171.12.15.2 | swMSTPCtrl | MSTP-MIB |
| 1.3.6.1.4.1.171.12.15.2.3 | swMSTPInstanceCtrlTable | MSTP-MIB |
| 1.3.6.1.4.1.171.12.15.2.3.1 | swMSTPInstanceCtrlEntry | MSTP-MIB |
| 1.3.6.1.4.1.171.12.15.2.3.1.21 | swMSTPInstLastTopologyChange | MSTP-MIB |