Message: Response Time for xxxxxx service

Message: Response Time for xxxxxx service

Hi! I have a question regarding the " Message: Response Time for..." alert. Let say we monitor port 80 on a server, we are recieving the alert of a delay. How is this delay obtained?

OpManager checks Port 80 and the delay is in the initial "handshake" to the port (network)?
OpManager checks Port 80, the delay is in time the Port service response back (for example if we monitor port 80, it would be the web server).
Are we using telnet for this check?

Thanks
Nicolas

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