Gigabit switch is a switch with both upper and lower ports of Gigabit port. It can also be understood that the switch port supports 1000m or 10 / 100 / 1000m transmission. A lot of people are looking for faster LAN connection technology, using Gigabit Ethernet or faster 10 Gigabit technology. Such a change not only occurs in the backbone of the campus network, but also in every wiring room. Enterprise IT managers hope to provide each desktop user with 10 times the previous network connection.