Managed Ethernet switches have more capability than unmanaged switches, but they also require a skilled administrator or engineer to make the most of them. A managed switch enables you to have better control of your network and all the data frames moving through it. Unmanaged switches, on the other hand, enable connected devices to communicate with one another in their most basic form.
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Below, we compare the differences between managed and unmanaged switches.

Unmanaged Ethernet switches
Unmanaged switches use autonegotiated ports to determine parameters such as the data rate and whether to use half-duplex or full-duplex mode. Additionally, unmanaged switches have no concept of virtual LANs (VLANs). Thus, all devices belong to the same broadcast domain.

Unmanaged switches do maintain a media access control (MAC) address table, however. This table keeps track of dynamically learned MAC addresses and the corresponding switch port on which the MAC address was learned. The inclusion of a MAC address table means unmanaged switches do offer a separate, per-port collision domain. This is a key differentiator between an unmanaged Ethernet switch and an Ethernet hub.
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