First of all, we come to understand what is the router, what is the switch, the working principle is different?

Router is connected to the Internet LAN, wide area network equipment, it will be based on the situation of the channel automatically select and set the route to the best path, according to the order of the signal sent before the device. The router is the hub of the Internet, "traffic police". At present, routers have been widely used in all walks of life, a variety of different grades of products has become a backbone to achieve a variety of internal connections, backbone network and the backbone of the Internet and Internet interconnection business main force. The main difference between routing and switching is that the exchange takes place on the second layer (data link layer) of the OSI reference model, and the routing takes place on the third layer, the network layer. This distinction determines the routing and switching in the process of moving information need to use different control information, so the way to achieve their respective functions are different;

Switching is in accordance with the needs of communication at both ends of the transmission of information, with manual or equipment automatically completed the way to send the information to meet the requirements of the corresponding routing technology collectively. According to the different work location, can be divided into WAN switches and LAN switches. Wide area switch is a communication system to complete the information exchange function of the device, it is used in the data link layer. The switch has multiple ports, each with a bridging function that can connect to a LAN or a high-performance server or workstation. In fact, switches are sometimes referred to as multi-port bridges;

The switch is a network device that is used for electrical signal forwarding; it can be analyzed by the fact that the router is working on the network layer and the switch is a device that works at the data link layer. The router is a device for routing information packets or data packets. , The router is a high-level equipment, of course, has the basic function of the switch, that is, electrical signal forwarding (referring to the port of the router as the switch port as the same function);

In fact, very simple, the router is usually divided into WAN port and LAN port, as long as we only use the LAN port, and close the WAN port, then this router has become a multi-port switch; router switch, as long as the front WAN port And DSL port (some routers do not have this port) is not used, it has become a switch with three LAN ports; router does not need to set up, do chain switches, DHCP will be closed.