This is the counter indicating how many total notifications have been sent from the device since last bootup (or reboot). The counter is included in every private/enterprise notification. The counter starts at 0 on system bootup (or reboot). Upon wrapping, the counter starts at 1, not 0. Since the standard notifications ColdStart and WarmStart will be implemented, any boot (or reboot) sequence will trigger the following notification sequence: 1. ColdStart/WarmStart notification. 1a changedIPAddressEvent with counter = 0 if IP address has been changed during agent downtime. 1b swActivationProgress with counter + 1 resp. counter = 0 (depending on 1a was fired or not) if agent startup has triggert the activation of a new software package. Note: This is an optional notification, it depends on the agent implementation whether he is able to detect that the startup was triggert by the activation of a new software package or not. 2. agentUpAndRunningEvent with counter + 1 resp. counter = 0 (depending on 1a/1b was fired or not) if agent is finally up and running. 2a HeartBeat notification with counter + 1 if HeartBeat enabled. 3. alarm/other notifications with counter + 1 according to alarm/other conditions detected once the agent starts operating.