A detailed inventory, from the switches themselves.
Every device on every polled switch port and firewall, with its site, switch, port, VLAN and maker, re-read every 150 seconds. Not a list someone typed. Printers, cameras and personal devices included, because nothing needs an agent.
Every day, for every source, the inventory also says whether the appliance was actually reading. A day it could not see is printed as “not monitored”.








