What is a local network?
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A network (computer network) is a group of computers connected by a communication channel. In turn, the local network is a computer network, computers in which are most often located close to each other. Modern local networks can be built using both wired connections (twisted pair, fiber optic cable, etc.), using Ethernet technology, and using a wireless channel (Bluetooth, Wi-Fi, GPRS).
Types of local networks
Local networks vary in terms of routing type, topology, type of administration, etc. Depending on the type of routing, static and dynamic networks are distinguished. In static networks, each computer has a fixed IP address, and in dynamic networks, it is issued automatically when the computer is connected to the network. Dynamic routing is performed by special servers using DHCP (Dynamic Host Configuration Protocol) protocols and greatly facilitates the management of large local networks.The simplest option for a local network is to connect two computers directly. Such a connection is called direct or point-to-point. In more complex networks, computers are connected through intermediate communication nodes (routers, switches, etc.) using standard topologies (star, tree, ring, etc.).
The work of the various local network topologies is based on the TCP / IP protocol. A network administrator is a person who administers a network or part of it. He is responsible for the design, operation and monitoring of the network, as well as for the support of network services.
The difference between the local network and the global one is the way of administration (management) of the network, as well as the fact that local (local) IP addresses are used for routing in local networks. They allow you to avoid IP address conflicts (for example, in a situation where different computers on the network have the same IP address). The local network can have a connection to the global network through routers, which act as gateways.
Depending on what purpose the creation of a local network pursues, the principles of its creation also differ.
Principles of networking
If you need to realize working space at home or at work, combine a small number of computers, or connect a network printer, optical drive, etc., then a small static network will suit you. Such a network does not require a server, all computers in such a network will be equal. For more details on how to set up a local network at home, see the article How to set up a local network.
With the increase in the number of machines and the expansion of the geography of the network, its structure will also become more complex. The design and creation of such networks are handled by specialists, often administrators. Routing is performed by special servers, and the network itself is built on the basis of one of the standard topologies using various nodes (routers, wireless communication points, amplifiers, etc.).
Now you know what a local network is and you can connect it at home.