What trigger is used when a network switch device is already UP and running state?

[gwangjong]

Hi Admins,

Good day!

I have created an action/trigger for downtime like Unavailable by ICMP ping

Problem started at {EVENT.TIME} on {EVENT.DATE}
Problem name: {EVENT.NAME}
Host: {HOST.NAME}
Severity: {EVENT.SEVERITY}
Operational data: {EVENT.OPDATA}
Original problem ID: {EVENT.ID}
{TRIGGER.URL}
Escalation info:
{ESC.HISTORY}

What Trigger / template should be used for its resolution or Uptime?

Thanks in Advance!