We use rsyslog and have the network switches logging at the information level, which gives us port up/down status. If or as long as the network cable that is plugged in is also connected to a live network interface, then it would be possible to monitor port up/down status. The downside is that rebooting a system already connected to the network will generate a port down and then a port up message as the system reboots. You could use that port status information to monitor your ports. If you have port security enabled, you could also report on port security violations. Building a dashboard from scratch to show port status information might take some time. You could check to see if there is an app that can do this or a similar task that you could use as a model to build your own app as well. ... View more