Zabbix Availability & Inventory

Server

zabbix-mcp — vendored third-party, read-only, three tools. See zabbix-metrics-history for the shared cautions.

⚠ The wording rule — this is the whole skill

"Zabbix cannot reach it" is not "the device is down."

An NMS reports what one poller saw, from one vantage point, at one polling interval. That is evidence, not a verdict.

A device can be unreachable from Zabbix and completely healthy: a firewall rule, a management-VRF problem, a dead SNMP daemon on an otherwise forwarding router, or a poller that has simply not tried recently.

Never write "the device is down." Write: