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C H A P TER 12 intent Switched local area entanglement Inter interlockings This chapter describes the following three technologies that network spiriters can use to design switched local area network internetworks: local area network switching Virtual LANs (VLANs) atmospheric state switching ontogeny from Shared to Switched Networks In the past, network designers had solitary(prenominal) a express number of hardware options when purchasing a technology for their campus networks. Hubs were for wire presss and routers were for the data center or principal(prenominal) telecommunications operations. The increasing causation of scope processors and the requirements of client-server and multimedia applications, however, have driven the need for great bandwidth in traditional shared-media environments. These requirements are hypnotism network designers to interchange hubs in their wiring closets with switches, as shown in Figure 121. Figure 12-1 Evolutio n from shared to switched internetworks.

The wise wiring closet Si handed-down wiring closet Shared hub Multilayer switch (Layers 2 and 3) LAN switch (Layer 2) Hub automatic teller machine campus switch Router Router cisco router Traditional backbone Router CDDI/FDDI concentrator Cisco router The pertly backbone Shared hub This strategy allows network managers to encourage their vibrant wiring investments and boost network performance with utilise bandwidth to the desktop for each user. Coinciding with the wiring closet evolution is a similar trend in the network backbone. Here, the determination of async hronous Designing Switched LAN Internetwork! s 12-1 Technologies for structure Switched LAN Internetworks Transfer in the flesh(predicate) manner (ATM) is increasing as a result of standardizing protocols, such(prenominal) as LAN emulation (LANE), that enable ATM devices to coexist with existing LAN technologies. Network designers are collapsing their router backbones with ATM switches, which support the great backbone bandwidth required by high-throughput data services. Technologies for Building Switched LAN Internetworks With...If you want to get a full essay, arrangement it on our website: BestEssayCheap.com

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