TAILIEUCHUNG - ADC KRONE - Guide - How to choose the right Cabling Infrastructure

Tham khảo tài liệu 'adc krone - guide - how to choose the right cabling infrastructure', công nghệ thông tin, quản trị mạng phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | WHITE PAPER Building for Bandwidth How to Choose the Right Cabling Infrastructure Building for Bandwidth How to Choose the Right Cabling Infrastructure A Brief History of Cabling Over the past 30 years there have been unprecedented advances in networking technology. Since the early 1970s with the development of Ethernet, rates for point-to-point data transfer have increased by a factor of ten thousand. From one Mb/s StarLan to 10 Gb/s Ethernet, the steady increase in bandwidth has been fueled by an ever increasing demand for more; more speed, more applications, more memory and more devices. Demand for faster speed comes from continual increases in processor capability and advanced operating systems that enable development of new applications. These applications and their associated devices create more network usage and congestion, driving demand for more bandwidth. The need for this additional bandwidth is seen first at network bottlenecks. When a section of the network becomes a bottleneck, network equipment, such as Ethernet switches and servers, are replaced with the next generation of equipment with faster processors, more memory, improved operating systems and the inherent ability to run more complex applications. Over time, network equipment speeds outpace the infrastructure that connects the devices; In the transition of 10Base-T to 100Base-TX, for example. Networks with category 3 cabling systems could support the first few generations of switches and computers that supported 10 Mb/s Ethernet over 100 meters. With the introduction of the 100Base-TX protocol, bandwidth limitations between devices were removed. However, category 3 cabling was insufficient to support the 10x increase in bandwidth, which led to the development of category 5 cabling to support 100 Mb/s over 100 meters. Ignoring category 4, which came and went quickly, network planners faced a decision on which cabling system to install. At that time, the majority of networks operated with .

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