Starting from the version 3.3, LANState supports SNMP monitoring. You are able to configure checks for monitoring traffic, connections, ports, and other data via SNMP protocol.
Starting from the version 3.9, LANState supports switch port monitoring.
Read more on SNMP monitoring
LANState Pro can retrieve a bunch of useful data from switches, routers and other network devices that support SNMP.
LANState Pro also builds a switch connection table which can be exported to a CSV file.