Ethernet switches are divided into managed and unmanaged switches. The first group are those that are managed, whereas the unmanaged switches are not managed.
A switch provides better control and management of the network with the data frames passing through it. With a managed switch, each port on the switch can be customized to any setting and the network can be monitored and configured in a variety of ways. It also provides greater control over how data is transmitted on the network and who has access to it. Managed switches typically support the Simple Network Management Protocol( SNMP), which can be used to monitor the status of the switches and individual switch ports. In addition, monitoring provides statistics on traffic throughput, network errors, and port status.