This counter increments each time a new address entry is added to the AARP database, typically when a device first appears on the network or after its entry expires and is rediscovered. Monitoring this helps you identify network churn, device join/leave patterns, and whether your address table is growing out of control. A value of 423 shows the network has learned 423 new address entries, suggesting either a network with 423 active devices or significant address table turnover.