Data Communications -- Networking

Assignment 2 for the first time we charter (WAN ) ne devilrkThe analysis situs use up in this meshing is (BusNetwork topographic anatomy )this type of topologies connects distributively(prenominal)(prenominal) entropy central processor (nodes to a single fibreicle trunk (a communication produce line , typically piffle cable that is referred to as the mess . The orient travels from bingle end of the stack to the opposite . A terminator is involve at each to absorb the signalise so as it does non beam back across the manager . A media access method acting called CSMA /MA is used to portion out the smasher that occur when two br signals placed on the electrify at the kindred time . The bus topology is passive . In separate words , the computers on the bus plainly listen for a signal they argon not trustworthy for pitiable the signal on and it has an important advantage that the sorrow of wiz of the station does not affect othersIn each severalise there is (local area networkS ) computer network with it s own and separate selective informationbase , so we penury two (LANs ) networks and all nonpareil (WAN networkThe first caller affiliated with the second order via frame pass with different speeds correspond to the pressure of the workFrame relay lines attached with others via DTU (data transmission unitTwo companies give notice committed each other with a router resided in one of them ( principal(prenominal)(prenominal) companyEach sub-networks in the network weed connected via switchesWe also need main router to connect two (LANs ) networksWe moldiness use (TCPIP ) protocol . TCP /IP assigns a unique rate to any workstation in the foundation . This IP number is a quad byte value that , by convention , is expressed by converting each byte into a decimal fraction number (0 to 255 ) and separating the bytes with a cessation . For case , the PC lubricator and Tune server is one hundred thirty .132 .59 .

234Three pieces of randomness essential be requiredThe IP cite designate to each personal computerThe part of the IP address (the subnet veil ) that distinguishes other machines on the alike(p) LAN (messages dirty dog 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 gigabit ,2004The required bandwidth for this network must beDial-up modem : 56Kbps or ADSL 256KbpsISDN : 128KbpsT-1 : 1 .54MbpsEthernet : 10Mbps stiff Ethernet : 100MbpsGigabit Ethernet : 1000MbpsEthernet , Fast Ethernet , and Gigabit Ethernet links are Full convert apartment . This means they can send AND receive data at the listed speed at the same time . So in naive realism you could depute 20Mbps of data victimization a 10Mbps internet connection if you were move and receiving at full capacity (Jon Daniels ,2005All servers must be connected in the main company (main branchMain ServerLife Insurance ServerExchange ServerNet centre (used for employees data backupBackup server (used as a failover server via CA spunky availability parcel for the main...If you want to get a full essay, order it on our website: Ordercustompaper.com

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