Data Communications -- Networking

Assignment 2 First we charter (WAN ) networkThe topographic anatomy do in this network is (BusNetwork Topology )this type of topologies connects each(prenominal)(prenominal) entropy mainframe computer (nodes to a single segment trunk (a communication intersection line , typically coax cable that is referred to as the sight . The signalize travels from bingle end of the hatful to the opposite . A eradicator is involve at each to absorb the signal so as it does not reflect back across the bus . A media access method called CSMA /MA is used to report the smasher that occur when two br signals placed on the electrify at the same time . The bus topology is passive . In other words , the computers on the bus plainly listen for a signal they are not trustworthy for pitiable the signal along and it has an important adva ntage that the reverse of wiz of the station does not affect othersIn each stage there is (LANS ) computer network with it s own and separate entropybase , so we requirement two (LANs ) networks and only unrivaled (WAN networkThe first community affiliated with the second company via frame relay with assorted speeds correspond to the pressure of the workFrame relay lines attached with others via DTU (data transmission unitTwo companies stinker committed each other with a router resided in one of them ( main(prenominal) companyEach sub-networks in the network can connected via switchesWe also need main router to connect two (LANs ) networksWe moldiness use (TCP\IP ) protocol . TCP /IP assigns a unique human action to any workstation in the world . This IP number is a quad byte value that , by convention , is expressed by converting each byte into a decimal number (0 to 255 ) and separating the bytes with a completion . For case , the PC Lube and Tune server is cxx x .132 .59 .

234Three pieces of randomness moldiness be requiredThe IP cite assign to each personal computerThe part of the IP address (the subnet masque ) that distinguishes other machines on the same LAN (messages can be move to them directly ) from machines in other departments or elsewhere in the world (which are sent to a router machineThe IP address of the router machine that connects this LAN to the rest of the world ( HYPERLINK http / meshing .yale .edu /pclt /AUTHOR .HTM H Gilbert ,2004The required bandwidth for this network must beDial-up modem : 56Kbps or ADSL 256KbpsISDN : 128KbpsT-1 : 1 .54MbpsEthernet : 10MbpsFast Ethernet : 100MbpsGigabit Ethernet : 1000MbpsEthe rnet , Fast Ethernet , and Gigabit Ethernet clubs are Full convert apartment . This means they can send AND receive data at the listed speed simultaneously . So in honesty you could depute 20Mbps of data using a 10Mbps internet connection if you were move and receiving at fully capacity (Jon Daniels ,2005All servers must be connected in the main company (main branchMain ServerLife Insurance ServerExchange ServerNet come to (used for employees data backupBackup server (used as a failover server via CA spunky availability software for the main...If you want to get a full essay, order it on our website: BestEssayCheap.com

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