How does a TCP Port test monitors... Is it a telent test ? ? what is the the concept behind it

Interesting question. The only thing I know is that it connects and checks if there is an answer on the port.Bob Cornelissen - BICTT (My BICTT Blog) - Microsoft Community Contributor 2011 Recipient

Hi, Please check if the following articles will help: SCOM: Locally Monitoring a Listening TCP Port http://operatingquadrant.com/2009/08/13/scom-locallly-monitoring-a-listening-tcp-port/ TCP Port Check – Status Codes and Alert Parameters http://blogs.technet.com/b/jonathanalmquist/archive/2010/03/17/tcp-port-check-status-codes-and-alert-parameters.aspxPlease remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

It is not a telnet test. The healthservice of the watcher node will initiate a tcp connection on the port specified to the node/ip specified (as far as I understand it).Regards, Marc Klaver http://jama00.wordpress.com/

Is there any command that it runs netstat etc anything that it runs to initiate the connection.

no it far more basic than that i think. it will just try and open a connection probably with the winsock api. Rob Korving http://jama00.wordpress.com/