A user recognizes that a service has gone down and creates a ServiceNow ticket. Service Ops assigns the ticket to NetOps with a Priority 1.
NetOps team members now manually start diagnostics, discovering that an interface is down. Remediation action is performed to bring up the interface.
NetOps team now either updates the ticket if successful or continues running diagnostics to discover why the interface went down, staying as a priority level 1 task. The ServiceNow record is then updated and closed.