All MIBs › ELTEX-MES-BRIDGE-EXT-MIB › eltdot1sMstpInstanceLastTopologyChangePort
eltdot1sMstpInstanceLastTopologyChangePort
Module: ELTEX-MES-BRIDGE-EXT-MIB
OID (symbolic): ELTEX-MES-BRIDGE-EXT-MIB::eltdot1sMstpInstanceLastTopologyChangePort
OID (numeric): 1.3.6.1.4.1.35265.1.23.1.401.0.3.4.1.1
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-only
Description: This value contain port ifIndex from which the request about the last change of topology came. If value is 0 - topology wasn't changed yet.
What is eltdot1sMstpInstanceLastTopologyChangePort?
This integer reports the ifIndex of the port that triggered the most recent spanning-tree topology change for a given MSTP instance. Admins check it to pinpoint which port caused instability, such as a flapping uplink repeatedly re-triggering MSTP recalculation. A value of 0 means no topology change has occurred yet on this instance, while a value like 24 would point to the port with ifIndex 24 as the source of the last change.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.35265.1.23.1.401.0.3.4.1.1 snmpwalk -v2c -c public <target> ELTEX-MES-BRIDGE-EXT-MIB::eltdot1sMstpInstanceLastTopologyChangePort
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.35265.1.23.1.401.0.3.4.1.1.1 snmpget -v2c -c public <target> ELTEX-MES-BRIDGE-EXT-MIB::eltdot1sMstpInstanceLastTopologyChangePort.1
Start monitoring Eltex MES-series Ethernet switch (per-VLAN MAC learning/MSTP pending-region config) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the ELTEX-MES-BRIDGE-EXT-MIB::eltdot1sMstpInstanceLastTopologyChangePort OID value, configure state conditions and alerts, and monitor any Eltex MES-series Ethernet switch (per-VLAN MAC learning/MSTP pending-region config) 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 |
| 1.3.6.1.4.1.35265 | eltexLtd | ELTEX-SMI-ACTUAL |
| 1.3.6.1.4.1.35265.1 | elHardware | ELTEX-SMI-ACTUAL |
| 1.3.6.1.4.1.35265.1.23 | eltMes | ELTEX-MES |
| 1.3.6.1.4.1.35265.1.23.1 | eltMesMng | ELTEX-MES |
| 1.3.6.1.4.1.35265.1.23.1.401 | eltMesBridgeExtMIB | ELTEX-MES-MNG-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.35265.1.23.1.401.0 | eltMesBridgeExtMIBObjects | ELTEX-MES-BRIDGE-EXT-MIB |
| 1.3.6.1.4.1.35265.1.23.1.401.0.3 | eltMesBridgeMstp | ELTEX-MES-BRIDGE-EXT-MIB |
| 1.3.6.1.4.1.35265.1.23.1.401.0.3.4 | eltdot1sMstpInstanceTable | ELTEX-MES-BRIDGE-EXT-MIB |
| 1.3.6.1.4.1.35265.1.23.1.401.0.3.4.1 | eltdot1sMstpInstanceEntry | ELTEX-MES-BRIDGE-EXT-MIB |
| 1.3.6.1.4.1.35265.1.23.1.401.0.3.4.1.1 | eltdot1sMstpInstanceLastTopologyChangePort | ELTEX-MES-BRIDGE-EXT-MIB |