What is a LAN Network Diagram?

A local area network (LAN) is a group of two or more computers that are connected in some way to communicate. Through the network, computers can share data and, in some cases, resources. A LAN network diagram is a drawing that shows the components of a network and how they are connected. The diagram creates, in a way, a map of the network.

An Ethernet cable, which can be used on a local area network (LAN).

A LAN network diagram can take a variety of forms, from highly elaborate to somewhat elementary. Regardless of how sophisticated or basic the network diagram, it is critical that every component of the network is included. In the field of information technology, this diagram is often called a topology. Network administrators work with what is known as a physical topology as well as a logical topology.

The location of the routers will be shown on a LAN network diagram.

The physical topology shows the location of the various devices, also called network nodes. This includes devices such as computers, routers and switches. It also includes the location of any wiring closets where equipment racks may be housed. A good network diagram of this nature will usually be drawn on a floor plan of the building and will show how the cables connecting the network components are routed.

LAN network diagrams can play important roles in troubleshooting your network.

Logical topology is used to demonstrate the path data takes as it travels through the network. He is particularly concerned with areas in which network functions, such as routing or switching, take place. A LAN network diagram designed as a logical topology will usually include the Internet Protocol (IP) address of each of the nodes.

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There are several reasons to use network diagrams. Drawing a diagram before building a network helps to visualize the configuration beforehand. It can help determine the most efficient routes for cable runs, as well as the best locations for peripheral devices such as wireless access points.

Even greater benefits are derived from the network diagram after the network is up and running. A LAN network diagram can be a valuable troubleshooting tool for a network administrator. It assists in tracking connectivity issues, being able to determine which devices are connected to each other without having to try to follow a cable, which is often impossible. For a technician who may not be familiar with the network, this information may be indispensable.

In addition to being an effective troubleshooting tool, the network diagram can facilitate network expansion. Having the ability to see the network layout on paper allows the network administrator to determine the most efficient ways to add new components. The LAN network diagram can be updated whenever new components are added.

Network diagrams will help technicians and installers locate network components and determine how they are connected.

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