Difference Between Router and Switch

For example, a transformer is like a router and a socket is like a switch.

Explain to you slowly, the power from electricity plant should be used adjusted by the transformer. The same reason, IP address of the Internet is limited, you have to use the router access, switching our own private IP address into a public IP address on the Internet to access the Internet. Private IP address can not access the Internet. You must use a router.

Routing and routing of the Internet, the composition of the Internet.

If the wall has a power jack, you have two appliances. And you may use a porous socket, the role is right exactly the switch plays. Its purpose is to increase the number of interfaces.

The main role of the router is to convert the IP address of the intranet (private IP) into a public IP address on the Internet, connect inside and outside network.

Switch is the exchange of data ports within the network. A computer is a data port. The switch allows the computer in the LAN Internet, the router interconnects the Internet port.

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