Business network configurations vary from one business to the other but the basics remain the same.
An internet service provider deliveries service to an office. The provider can deliver service with many types of media including: fiber, coax, microwave, etc. No matter how the internet service provider deliveries the service once it reaches a business it is connected to a device so that a customer can connect their network to the internet. This device, that is provided by the internet service provider, can be a modem, circuit or in some cases a modem/router combination (to be discussed in a later article). After the modem/circuit has been installed and the internet “turned up” the customer can now connect their network equipment. The first set is to connect a router/firewall to the modem/circuit. The router is the “brain” of a network. It is responsible for sending IP packets to and from the correct computer or device on the network. Arguably the router is most important component of a network. Larger more demanding networks require better preforming routers. The next step is to connect the switch(s). Network switches allows for multiple device and computers to be psychically connected to the network. In more advanced networks the switch can be used to logically and/or psychical segment the network (later