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Network Connections

In: Computers and Technology

Submitted By gesshoo2000
Words 600
Pages 3
The physical connections on a computer network, the cabling and the arrangement between the network devices and computers is known as, network topology. As the definition implies the name is loosely tied to the actual appearance the network. There are several topologies; three of the more known ones are Star, Bus, and Ring.
The Star topology is a network that is connected through a central device and all the network devices; printers, computers, SAN’s and all other network devise. This topology is the most common network arrangement used today. Most home networks connect to the internet and each other through a single device, the router. This router is usually has a combination of Wi-Fi and Ethernet ports is the center piece and consequently the single point of failure in the entire network. On older equipment a hub was used to tie each node together but the hub had a few shortcomings. First the more devices that were connected and running the slower the network would become. Second because of the way the hub is designed all network traffic was visible to all the devices on the network which meant that security could be compromised by anyone connected to the network. Gone are the hubs; replaced by switches which look exactly like hubs but are smart. With Switches traffic coming from a device is isolate to the node and the other device that the node wants to communicate. This freed up the network congestion that plagues hubs and increased security immediately on the network.
The Bus topology uses a single cable (the bus) to connect all network devices. There are no special appliances to manage network traffic but it is controlled at the network card level and broadcast out onto the bus. Once the broadcast is sent the device for which the broadcast was meant for senses the broadcast and communicates back via a broadcast. The Bus topology is inexpensive and…...

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