A local area network allows you to solve many different problems in a company. There are several major advantages to using a LAN. First of all, this is the fact that this type of system allows you to store various data on a file server. Thanks to this, it is possible to simultaneously work many clients, update data in various network programs, use information that is protected in files and directories. Also, a local network allows you to exchange information between all computers connected to it. Each user has access to the global network if there is a special switching node. Among other advantages, it is worth highlighting full-fledged data printing by any user on shared printers.
Requirements for local area networks lan administrator
Today, local area networks can differ in topology, size, work algorithms, depending on the needs and structure of the organization. They can be used in a wide variety of countries, but they may have similar requirements. First of all, it is reliability, which should ensure the functioning of the network even if several nodes fail. The second important requirement is the speed provided by the high-speed data transmission channels. Another important requirement is adaptation that allows you to expand your networks by installing computers where needed and expanding the functionality of the LAN.
In the simplest network, there are at least two computers that are connected by a cable. This makes it possible to share data. Today, the local network and the Internet allow you to create very complex systems, so there are certain nuances of designing local networks. For these purposes, in most cases, special software products are required. Such products have a wide range of tools, a user-friendly interface, provide the ability to install additional applications and extensions integrated with them, show the location of various nodes and system elements. It can also be completely different functions that are necessary to build an efficient working local area network.
Local area network: design and network equipment
Various equipment is used to build a local area network. The most common of such equipment is a hub (hub), switch, repeaters, routers and modems or other signal conditioning devices.
Local computer networks - what is it?
From the information presented above, it can be understood that such networks are a closed space in which not only computers are connected, but also various equipment for printing, scanning, transferring and storing data. At the same time, you need to understand that there are various topologies of local networks: a common bus, a ring, as well as a star and other options.
The first option resembles a central line where the server and individual workstations are connected. This topology was popular before, when the demand for cable was not so great. The advantages of this option include low cabling costs and the ability to disconnect individual computers without losing the entire network.
The second option assumes that the server and all workstations are connected and connected to each other in a ring. Information is also transmitted around the ring, but it only goes to the addressee when the network recognizes that the data of the computer and the information match. The advantage of this type is the ability of workstations to transfer data between themselves, even without a server.
In star topology, each computer connects to a central station (network core), with the file server and the main server and network services located as close as possible to this core. Among the advantages of this topology is the stable operation of the entire network, even if the cable of one computer is damaged. Also, the connection is simply performed here, there are mechanisms for protection against unauthorized interference, and the data transfer rate is quite high.
What constitutes a local network is already clear, but at the same time you need to understand that a wired network (SCS) is often integrated with a wireless local area network, since recently it has been used much more often due to its maximum ease of use and its versatility.
Stages of building computer networks
The construction of computer networks includes such stages as development, design, installation, testing and maintenance. First, a pre-design survey takes place, then the requirements for the LAN are formed, after which the direct working design of the network is carried out. The next stage is preparatory work, in which holes are made for the installation of equipment, a place is allocated for its placement, cross-connection and installation of the cable system is performed. Then the installation of passive and active network equipment is carried out, the networks are tested, the sockets are marked, a journal is drawn up for accounting for communication lines. At the final stage, commissioning works are carried out.
What is a LAN, its capabilities - it is already clear, but not everyone can know what a wireless local area network is: W indows 10, an algorithm for configuring such a network. Usually such a network is quite simple to create. A router with a Wi-Fi module is required, in which this interface is enabled. Next, a network name is created, the type of encryption is selected and a password is created. You also need to check that all connected devices are in the same workgroup. If the user has no experience in creating special groups, then you can use home groups, where the connection is very convenient and simple. You just need to follow the prompts, instructions in the system and perform standard settings.
Requirements for local area networks lan administrator
Today, local area networks can differ in topology, size, work algorithms, depending on the needs and structure of the organization. They can be used in a wide variety of countries, but they may have similar requirements. First of all, it is reliability, which should ensure the functioning of the network even if several nodes fail. The second important requirement is the speed provided by the high-speed data transmission channels. Another important requirement is adaptation that allows you to expand your networks by installing computers where needed and expanding the functionality of the LAN.
In the simplest network, there are at least two computers that are connected by a cable. This makes it possible to share data. Today, the local network and the Internet allow you to create very complex systems, so there are certain nuances of designing local networks. For these purposes, in most cases, special software products are required. Such products have a wide range of tools, a user-friendly interface, provide the ability to install additional applications and extensions integrated with them, show the location of various nodes and system elements. It can also be completely different functions that are necessary to build an efficient working local area network.
Local area network: design and network equipment
Various equipment is used to build a local area network. The most common of such equipment is a hub (hub), switch, repeaters, routers and modems or other signal conditioning devices.
Local computer networks - what is it?
From the information presented above, it can be understood that such networks are a closed space in which not only computers are connected, but also various equipment for printing, scanning, transferring and storing data. At the same time, you need to understand that there are various topologies of local networks: a common bus, a ring, as well as a star and other options.
The first option resembles a central line where the server and individual workstations are connected. This topology was popular before, when the demand for cable was not so great. The advantages of this option include low cabling costs and the ability to disconnect individual computers without losing the entire network.
The second option assumes that the server and all workstations are connected and connected to each other in a ring. Information is also transmitted around the ring, but it only goes to the addressee when the network recognizes that the data of the computer and the information match. The advantage of this type is the ability of workstations to transfer data between themselves, even without a server.
In star topology, each computer connects to a central station (network core), with the file server and the main server and network services located as close as possible to this core. Among the advantages of this topology is the stable operation of the entire network, even if the cable of one computer is damaged. Also, the connection is simply performed here, there are mechanisms for protection against unauthorized interference, and the data transfer rate is quite high.
What constitutes a local network is already clear, but at the same time you need to understand that a wired network (SCS) is often integrated with a wireless local area network, since recently it has been used much more often due to its maximum ease of use and its versatility.
Stages of building computer networks
The construction of computer networks includes such stages as development, design, installation, testing and maintenance. First, a pre-design survey takes place, then the requirements for the LAN are formed, after which the direct working design of the network is carried out. The next stage is preparatory work, in which holes are made for the installation of equipment, a place is allocated for its placement, cross-connection and installation of the cable system is performed. Then the installation of passive and active network equipment is carried out, the networks are tested, the sockets are marked, a journal is drawn up for accounting for communication lines. At the final stage, commissioning works are carried out.
What is a LAN, its capabilities - it is already clear, but not everyone can know what a wireless local area network is: W indows 10, an algorithm for configuring such a network. Usually such a network is quite simple to create. A router with a Wi-Fi module is required, in which this interface is enabled. Next, a network name is created, the type of encryption is selected and a password is created. You also need to check that all connected devices are in the same workgroup. If the user has no experience in creating special groups, then you can use home groups, where the connection is very convenient and simple. You just need to follow the prompts, instructions in the system and perform standard settings.
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