Data Communications -- Networking

Assignment 2 First we charter (WAN ) networkThe topographic anatomy drug a great deale 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 merchandise line , typically coax cable that is referred to as the autobus . The polarity travels from bingle end of the bus 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 cross 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 liable for pitiable the signal along and it has an importa nt advantage that the ill of wiz of the station does not affect othersIn each beginning there is (LANS ) computer network with it s own and separate selective informationbase , so we ask two (LANs ) networks and only unmatched (WAN networkThe first follow affiliated with the second company via frame relay with distinguishable speeds correspond to the pressure of the workFrame relay lines attached with others via DTU (data transmission unitTwo companies goat 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 physique 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 period of time . For case , the PC Lube and Tune server is one hundred thirty .132 .59 .234T! hree pieces of randomness moldiness be requiredThe IP cite appoint to each personal computerThe part of the IP address (the subnet dissemble ) 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 / net .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 : 1000MbpsEthernet , Fast Ethernet , and Gigabit Ethernet unions are Full duplex house apartment . This means they can send AND receive data at the listed speed simultaneously . So in mankind you could depute 20Mbps of data using a 10Mbps internet connection if you were move and receiving at fully capacity (Jon Daniels ,2005A ll servers must be connected in the main company (main branchMain ServerLife Insurance ServerExchange ServerNet optic (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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