. In my network, I have few Cisco switches at various departments connected via FIBER optics. Recently we were having issue of network connectivity in between various switches and devices. I already have a very good setup of Mikrotik base DUDE monitoring system, but it shows only the SWITCH availability status on the screen, I wanted to have a good visual for switch ports too. I found few ways to accomplish this task using DUDE functions, scripts, etc, but found following method is very simple to start with . It also sends me email when any port goes Down or not in use. Make sure your switch support SNMP , and SNMP agent is enabled at your SWITCH as well as at your DUDE to match the same. For simplicity you can use PUBLIC as a default community string in the switch. Also In this example I have used CISCO 3750 (in dual stack mode) and add only few ports just for example. First add your switch in the map so that it can appear in the map as look like below. As s