Tham khảo tài liệu 'krone - white paper - 10gbase-t impossible is possible', công nghệ thông tin, quản trị mạng phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | KRONEfacts Making the Impossible Possible KRONE’s CopperTen™ Cabling Solution For years, copper UTP solutions have been the preferred was no exception for 10 Gigabit Ethernet. An IEEE medium over which most Local Area Networks study group was formed to discuss how best to communicate. And in this same period, a debate has approach running 10 Gigabit transmission over a copper raged as to when fibre would displace copper as the infrastructure. This group is composed of representatives preferred infrastructure. Several years ago Gigabit from several different aspects of the networking Ethernet seemed like a pipe dream, yet today Gigabit community, such as chip manufacturers, hardware switch port sales have overtaken 10/100BaseT of old. manufacturers and cabling/connectivity manufacturers. Fibre, has for years, led the Ethernet industry forward in The 10GBaseT working group discussions include which port speed progression. So if fibre is one step ahead, protocol encoding will be used, how it relates to the doesn’t it replace copper? The answer is quite simple. To needed bandwidth from the cabling infrastructure (what convert electrons to photons and then back to electrons the frequency range is) and what measurement of adds cost (from an active hardware perspective). This Shannon’s Capacity is needed to support them. A makes the cost of fibre optic active hardware as much definition of Shannon’s law is given below. The value for as six times more expensive per port today than the the capacity is measured in bits per second. To achieve equivalent speed copper UTP solution on Gigabit 10Gbps of transmission, a Shannon’s capacity of Ethernet switch ports. >18Gbps is required from the cabling solution. The additional capacity over the desired data rate is due to With Ethernet now the winner of the horizontal desktop the amount of bandwidth used within the active LAN protocol war, a pattern has arisen with regards to hardware noise parameters . Jitter, .
