I use to monitor devices uptime with zabbix.
Extreme X-series has an OID:
which is pretty constant and shows in unixtime format when device was booted. So if it changes - device was rebooted.
I do not find the same OID for VSP. Only SysUpTime OID which shows timeticks from the last reboot.
Could you please point me to the right OID or to the magic logic :) how to know VSP was rebooted? Operate with “<>”?