Your business’ network is probably its most important internal resource. As your business grows and expands, the importance of its network structure and efficiency grow as well. All of your data will be stored on your network, and must be kept secure both against rivals, random cyber attacks and viruses. And all of your staff will need to be able to reliably, efficiently draw data from the network and communicate with each other over it, as well as access the internet. The means it is at the center of everything you do and can be a very expensive investment. However the use of used network hardware and equipment, such as used Tycoequipment, can substantially lower that cost. Let’s take a look at the set up of an average network for a business as it grows.
A network is basically any method of connecting together multiple computers so they can communicate. In many cases this will include not only desktop computers such as you or I use daily but also dedicated databases. These databases act to store and back up the data accessed at all of your businesses’ individual workstations in one central place. This ensures that your data is consistent (i.e. there aren’t different versions stored in different locations) as well as secure (with a regular backup). I often recommend used Dantel data storage equipment for this part of your network. In addition to data security, the database aspect of your network can also end up acting as a cost-saving device. For example, if you have 100 work stations but only 60 or so will be active at any time, you can buy 65 licenses for expensive software and the network will assign them to users as they log in. This could be cheaper than buying a license for all 100 stations.
Besides the actual computers involved, your network will also include some specialized hardware to make sure everything is able to “talk” to everything else, and that no unauthorized outside users are able to get in. Usually this hardware includes routers, hubs, and switches. Each of these has a unique purpose in your network and I am a strong fan of used HP hardware for any of these roles.
A router is basically a device that connects multiple machines or networks together. When data comes into one of its “ports” – that is, one of the connections to an individual machine or a network segment – it sends it out another port to forward it on toward its destination. In this way a router acts a lot like an old telephone operator in the early days of telecom. Some routers indiscriminately make incoming data available to all of their ports, others compare it to a “routing table” or forwarding table to determine where exactly it needs to go and forward it to that port only.
A hub is a step up from a router. It does much the same function, however, it also cleans the data of noise and boosts its signal to transport it over greater distances. In general a hub is like a crossroads of a network: it does not discriminate in which of its ports it sends data to. Data that comes into a hub is available to all network segments that intersect the hub. A more “intelligent” version of this is the network bridge, which often serves as the crossroads between entire network segments, and which will “learn” where to forward certain data instead of sending it through all ports. It does this by logging the source address of every data packet it receives, along with the port the packet came through. When a packet comes that is meant for that address it then knows which port to assign it to.
Finally there are switches. Switches act like smart hubs that send data only between the relevant ports, but they also intersect different layers of a network. Smaller businesses may not have a multi-layered network but it becomes common for any network that stretches across multiple physical sites. For example, you might have a local network at your headquarters office and one at your production facility and then a higher-layer network that connects both. A switch would act to relay data between network layers.
These are just a few of the most essential pieces of IT hardware used in building a network but they should give you a basic understanding of how network architecture works and why it is so important to your business.