LAN Switching First-Step by Matthew J. Castelli

By Matthew J. Castelli

Community switches paintings by way of connecting community paths jointly and making clever judgements approximately relocating site visitors in a community. by means of maintaining a tally of adjustments within the community, switches decrease congestion and increase speed.No LAN switching expirience wanted!

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10Gigabit Ethernet? 8: What is encapsulation, and how does it work (in reference to the OSI model)? < Day Day Up > < Day Day Up > 45 46 Chapter 3. Local-Area Networking Introduction What You Will Learn On completing this chapter, you will be able to: • Describe local-area networks (LANs) • Explain the functions of wide-area networks (WANs) • Describe analog and digital signals • Compare characteristics of different network cabling types • Draw simple network topologies • List the different types of hardware found in a LAN or a WAN Local-area networks (LANs) send and receive data at rates much faster than can be transmitted over a telephone line; but the distances are limited, often to a few hundred feet maximum without using costly, long-range technologies, such as Long Reach Ethernet (LRE) or wave-division multiplexing (WDM).

If the passengers are not at their intended destination and need to continue their journey, they do not stay on the same train and try to convince the engineer to keep going. They change trains at the train station. The train stations provide a switching point for the passengers riding these trains and sometimes the trains themselves. If a passenger needs to ride several trains to get from the originating (starting) point to the terminating (ending) point, the passenger switches trains at the railroad station.

Nearly every network standard centers on how the standard fits into the OSI model. Imagine that your job is to design and build a car, and you want to design a sports car that no one has ever seen before. At the same time, you want this car to fit on the existing roads and in parking lots. Therefore, the car can be only so wide and so long. Standards provide the guidelines that you and other automobile engineers will follow, so that your car can be used on existing roads. < Day Day Up > < Day Day Up > 31 32 Chapter Summary A network is a system, or collection of systems, that facilitates the exchange of resources from one point to another.

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