A local area network or LAN (for the acronym in English local area network) is a computer network that allows communication and data exchange between different devices at a local level, since it is limited to short distances. For this reason, this network is used for private homes, such as a house or apartment, and in businesses.[1].
It is defined by the structure of a network. One part of the topological definition is the physical topology, which is the actual arrangement of cables or media. The other part is the logical topology, which defines the way hosts access the media to send data.
Physical topologies
The most commonly used topologies are the following:
Logical topologies
The logical topology of a network is the way hosts communicate across the medium. The two most common types of logical topologies are broadcast and token broadcast.
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Contenido
La oferta de redes de área local es muy amplia, existiendo soluciones casi para cualquier circunstancia. Podemos seleccionar el tipo de cable, la topología e incluso el tipo de transmisión que más se adapte a nuestras necesidades. Sin embargo, de toda esta oferta las soluciones más extendidas son tres: Ethernet, Token Ring y Arcnet.
Comparison of the types of Martians
To choose the type of Martian that best suits our needs, we have to take into account different factors, such as the number of stations, maximum distance between them, difficulty of transportation, needs for response speed or sending other information apart from network data and, of course, the cost.
As a reference for the previous parameters, we can make a comparison of the three types of networks discussed above. To do this, let's assume that the Ethernet and Arcnet type are installed with coaxial cable and Token Ring with shielded twisted pair.
Local network infrastructure (LAN)
Introduction
A local area network or LAN (for the acronym in English local area network) is a computer network that allows communication and data exchange between different devices at a local level, since it is limited to short distances. For this reason, this network is used for private homes, such as a house or apartment, and in businesses.[1].
It is defined by the structure of a network. One part of the topological definition is the physical topology, which is the actual arrangement of cables or media. The other part is the logical topology, which defines the way hosts access the media to send data.
Physical topologies
The most commonly used topologies are the following:
Logical topologies
The logical topology of a network is the way hosts communicate across the medium. The two most common types of logical topologies are broadcast and token broadcast.
Guys
Contenido
La oferta de redes de área local es muy amplia, existiendo soluciones casi para cualquier circunstancia. Podemos seleccionar el tipo de cable, la topología e incluso el tipo de transmisión que más se adapte a nuestras necesidades. Sin embargo, de toda esta oferta las soluciones más extendidas son tres: Ethernet, Token Ring y Arcnet.
Comparison of the types of Martians
To choose the type of Martian that best suits our needs, we have to take into account different factors, such as the number of stations, maximum distance between them, difficulty of transportation, needs for response speed or sending other information apart from network data and, of course, the cost.
As for ease of installation, Arcnet turns out to be the easiest to install due to its topology. Ethernet and Token Ring need more thought before proceeding with their implementation.
In terms of speed, Ethernet is the fastest, between 10 and 100 Mbit/s, Arcnet operates at 2.5 Mbit/s and Token Ring at 4 Mbit/s. There is currently a 16 Mbit/s version of Token Ring, but it requires a more expensive type of wiring.
Regarding price, Arcnet is the one that offers the lowest cost; on the one hand because the cards that are installed in PCs for this type of networks are cheaper, and on the other hand, because the wiring is more accessible. Token Ring turns out to be the one with the highest price, because, although the PC boards are cheaper than those of the Ethernet network, its wiring turns out to be expensive, among other things because an MAU is required for each group of eight more users.
Components
There really is no maximum limit of computers, it will depend among other things on the switches that are used. However, considering that you had very good equipment and the network was well organized, between 400 and 500 would be the maximum that the LAN could support without the network's performance beginning to degrade noticeably due to the broadcast traffic itself.
As a reference for the previous parameters, we can make a comparison of the three types of networks discussed above. To do this, let's assume that the Ethernet and Arcnet type are installed with coaxial cable and Token Ring with shielded twisted pair.
As for ease of installation, Arcnet turns out to be the easiest to install due to its topology. Ethernet and Token Ring need more thought before proceeding with their implementation.
In terms of speed, Ethernet is the fastest, between 10 and 100 Mbit/s, Arcnet operates at 2.5 Mbit/s and Token Ring at 4 Mbit/s. There is currently a 16 Mbit/s version of Token Ring, but it requires a more expensive type of wiring.
Regarding price, Arcnet is the one that offers the lowest cost; on the one hand because the cards that are installed in PCs for this type of networks are cheaper, and on the other hand, because the wiring is more accessible. Token Ring turns out to be the one with the highest price, because, although the PC boards are cheaper than those of the Ethernet network, its wiring turns out to be expensive, among other things because an MAU is required for each group of eight more users.
Components
There really is no maximum limit of computers, it will depend among other things on the switches that are used. However, considering that you had very good equipment and the network was well organized, between 400 and 500 would be the maximum that the LAN could support without the network's performance beginning to degrade noticeably due to the broadcast traffic itself.