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The Importance Of End Systems

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In today's society networking is pivotal structure in the way information is transferred and received between people. In the business world we need to send information to people to at fast rates to meet user satisfaction. Imagine places like wall street that is the mecca of business that constantly send information back and forth to get the right information to keep investor aware or up to date on a forever changing stock market. Picture one the biggest libraries in america the library of congress in washington dc that has network structure to accommodate millions of people that commute and use resources such online biography and web capabilities every day. For system like this to exist we depend on a common network layer that is used all …show more content…

In the second and third layer of osi model it is called data link and network link. Data link is packaging data into frames and transmitting those frames on the network and performing the error detection correction by uniquely identifying the network devices with an address, and handling the flow control. Data link layer has two sub layer which is called media access control which is know as the computer unique identifier to which the network is assigned The mac address comes with a 48 bit address that is assign to it devices network interface card/.Second sub layer is llc which stand for logic link control, which is know as the multiplex functions that is process of over media access control To provide a means of exchanging data between end users across a MAC-controlled link or a collection of LANs interconnected by MAC-level bridges. Layer 3 switching is another example of fragment-free switching. Up to now, this discussion has concentrated on switching and bridging at the data link layer Layer 2 of the Open System Interconnection OSI model. When bridge technology was first developed, it was not practical to build wire-speed bridges with large numbers of high-speed ports because of the manufacturing cost involved. With improved technology, many functions previously implemented in software were moved into the hardware, increasing performance and

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