Switching (switching) is the need to transmit information according to both ends of the communication，Methods automatically completed by manual or equipment，The collective referred to the technology blackjack live on the corresponding routing that meets the requirements of the corresponding routing。The switch is different according to the work location，Can be divided into a wide -area network switch and a local area network switch。Switch (SWITCH) is a device that completes the information exchange function in the communication system，It is applied to the data link layer。There are multiple ports in the switch，Each port has a bridge function，You can connect a local area network or a high -performance server or workstation。Actually，Sports are sometimes called multi -end mouth bridge。

Precautions for Using the experimental box:

how to play blackjack 1、During the experimental process，Note that the matching of the connection line and the device interface。

2. Waiting for the switch to start completely and then perform the next step.