Share this question

Welcome to Teachnovice Q&A, where you can ask questions and receive answers from other members of the community.

This is a collaboratively edited question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

What type of TCP connections are counted?

0 like 0 dislike
In Windows 7's Resource Monitor, in the TCP Connections graph at the top right -- how are those connections being counted? Does a "listening" state count, for example? Does it matter what state a connection is in to be counted?


I'm unsure whether the total number of those graphed TCP connections correlate directly with the number of connections listed under the TCP Connection subsection, which shows connections and their associated program.

A friend called me for help, asking about their computer that had lost internet 45 minutes ago due to an ISP-side outage (per modem lights). Out of curiosity, I asked them to check the TCP connection count in Resource Monitor. Strangely, it was showing 160 TCP connections in the graph, despite the computer being internet-less for nearly an hour. I found this strange that there would be so many connections, having been internet-less for an hour.

Unfortunately, I wasn't able to diagnose any potential running programs they may have had, especially ones showing TCP connections.
asked Jun 3, 2013 by anonymous  
A TCP connection is a TCP connection. All TCP connnections are counted. A dead TCP connection can stay alive until the program releass the port.
So a listening port counts as an actual connection? I guess it's the semantics that throws me off, thinking that a connection isn't a connection until there are at least two IP addresses involved

Your answer

Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.
Anti-spam verification:
To avoid this verification in future, please log in or register.