dot1dStpTimeSinceTopologyChange

• 1.3.6.1.2.1.17.2.3
• Access readonly
• Type TimeTicks
• Unit centi-seconds

The time (in hundredths of a second) since the last time a topology change was detected by the bridge entity. For RSTP, this reports the time since the tcWhile timer for any port on this Bridge was nonzero.