Essay A Brief Note On Wired Lan And Network Interface

1130 Words Sep 4th, 2016 null Page
3-Describe wired LAN, its purpose, basic configuration, and supported standards. Specifically explain the VLAN concept and its use within the wired LAN infrastructure. What healthcare use can you envision for wired LAN? If unsure, search the literature for answers. A wired LAN connects computers within an organization in a network configuration and each PC on the LAN must connect to the network with a network interface card (NIC). The NIC needed varies by which cabling is used for the network (Cowley, 2012). NICs help to direct traffic on the network if a shared medium is used and they also help detect transmission errors (Cowley, 2012). Wired LANs can be complex and expensive to configure in an institution; some equipment needed for a wired LAN include hubs, switches, and routers. The hub, which is an OSI Level 1 device, acts as a signal booster within the LAN. Switches are OSI Level 2 devices and are actually intelligent devices that understand the addresses, connect different LAN segments, increase the bandwidth on the LAN, and are needed to create virtual LANs (VLANs) (Cowley, 2012; Morency, 1995). The wired LAN needs a dedicated location in a closet to house the patch panel/switchboard that connects all the wires from all the PCs on the network as well as the server. The equipment emanates a significant amount of heat; therefore, the closet should be kept cool (Cowely, 2012).
A VLAN connects identified computers within a wired LAN so they can communicate…

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