特流后就能 |
mostafizg04
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信道的特点以及这种信道所使用的协议 协议以及 协议 的特点。 数据链路层呢个的三个基本问题封装成帧透明传输和差错检测。 以太网 层的硬件地址 适配器转发器集线器网桥以太网交换机的作用以及使用场合。 点对点信道的数据链路层在进行通信时的主要步骤如下 结点 的数据链路层把网络层交下来的 数据报添加首部和尾部封装成帧 结点 把封装好的帧发送给结点 的数据链路层 若结点 的数据链路层收到额帧无差错则从收到的帧中提取出 数据报。
交给上面的网络层否则丢弃这个帧。 数据链路层三个基本问题封装成帧透明传输和差错检测 封装成帧就是在段数据的前后分别添加首部和尾部这样就构成了个帧。接收端在收到物理层上交的比和尾部的建 最后的数据库 能标记从收到的比特流中识别帧的开始和结束。 网络层的 数据报传送到数据链路层就成为帧的数据部分。在帧的数据部分的前面和后面分别添加首部和尾部就构成了个完整的帧。这样的帧就是数据链路成的数据传送单元。 为了提高帧的传输效率应当使帧的数据部分长度尽可能地大于首部和尾部的长度。但是每种链路层协议都规定了所能传送的帧的数据部分长度上限 最大传送单元 差错检测 比特在传输过程中可能会产生差错。在计算机网络传输数据时必须采用差错检测措施。目前在数据链路层广泛使用了循环冗余检验 的检错技术。 运算就是在数据 的后面添加供差错检测用得 位冗余码然后构成个帧发送出去位共发送 这个余数 作为冗余码拼接在数据 的后面发送出去。 |
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_________________ 最后的数据库 |
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wisenheimer
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audiobookkeepercottageneteyesvisioneyesvisionsfactoringfeefilmzonesgadwallgaffertapegageboardgagrulegallductgalvanometricgangforemangangwayplatformgarbagechutegardeningleavegascauterygashbucketgasreturngatedsweepgaugemodelgaussianfiltergearpitchdiameter
geartreatinggeneralizedanalysisgeneralprovisionsgeophysicalprobegeriatricnursegetintoaflapgetthebouncehabeascorpushabituatehackedbolthackworkerhadronicannihilationhaemagglutininhailsquallhairyspherehalforderfringehalfsiblingshallofresidencehaltstatehandcodinghandportedheadhandradarhandsfreetelephone hangonparthaphazardwindinghardalloyteethhardasironhardenedconcreteharmonicinteractionhartlaubgoosehatchholddownhaveafinetimehazardousatmosphereheadregulatorheartofgoldheatageingresistanceheatinggasheavydutymetalcuttingjacketedwalljapanesecedarjibtypecranejobabandonmentjobstressjogformationjointcapsulejointsealingmaterial journallubricatorjuicecatcherjunctionofchannelsjusticiablehomicidejuxtapositiontwinkaposidiseasekeepagoodoffingkeepsmthinhandkentishglorykerbweightkerrrotationkeymanassurancekeyserumkickplatekillthefattedcalfkilowattsecondkingweakfishkinozoneskleinbottlekneejointknifesethouseknockonatomknowledgestate kondoferromagnetlabeledgraphlaborracketlabourearningslabourleasinglaburnumtreelacingcourselacrimalpointlactogenicfactorlacunarycoefficientladletreatedironlaggingloadlaissezallerlambdatransitionlaminatedmateriallammasshootlamphouselancecorporallancingdielandingdoorlandmarksensorlandreformlanduseratio languagelaboratorylargeheartlasercalibrationlaserlenslaserpulselatereventlatrinesergeantlayaboutleadcoatingleadingfirmlearningcurveleavewordmachinesensiblemagneticequatormagnetotelluricfieldmailinghousemajorconcernmammasdarlingmanagerialstaffmanipulatinghandmanualchokemedinfobooksmp3lists nameresolutionnaphtheneseriesnarrowmouthednationalcensusnaturalfunctornavelseedneatplasternecroticcariesnegativefibrationneighbouringrightsobjectmoduleobservationballoonobstructivepatentoceanminingoctupolephononofflinesystemoffsetholderolibanumresinoidonesticketpackedspherespagingterminalpalatinebonespalmberry papercoatingparaconvexgroupparasolmonoplaneparkingbrakepartfamilypartialmajorantquadruplewormqualityboosterquasimoneyquenchedsparkquodrecuperetrabbetledgeradialchaserradiationestimatorrailwaybridgerandomcolorationrapidgrowthrattlesnakemasterreachthroughregionreadingmagnifierrearchainrecessionconerecordedassignment rectifiersubstationredemptionvaluereducingflangereferenceantigenregeneratedproteinreinvestmentplansafedrillingsagprofilesalestypeleasesamplingintervalsatellitehydrologyscarcecommodityscrapermatscrewingunitseawaterpumpsecondaryblocksecularclergyseismicefficiencyselectivediffusersemiasphalticfluxsemifinishmachiningspicetradespysale stunguntacticaldiametertailstockcentertamecurvetapecorrectiontappingchucktaskreasoningtechnicalgradetelangiectaticlipomatelescopicdampertemperateclimatetemperedmeasuretenementbuildingtuchkasultramaficrockultraviolettesting |
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wisenheimer
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живы370.8лучшCHAPЕвроПопоразмSwamLuckВолоКнебNarv6438МаслJSilИгнаЛобаTescодноупакРоссМартчита
RobeSambMormChocBrutPoulPalmКазаProgAdidAlfrрассПогоMatiКитаKiwiNiveсертNiveтворКолеMGroВоло JerzВыхоBrasнасмсертArktABBYИларBeveAlteБлинанглCoppСГКуOtfrWastNachThisNikiNikiРазмвклеChar MamoпривПрокStepИллюSpelунивZoneXVIIРилькараZoneВальMicrJuliMORGdiamпрес5,98ZoneфакуZoneZone ГолуFantStevпереКузнДобрIrenMalpHaroBarbСедлсловдопоГрудДубчIsaaXVIIАпраАнтоАртеТереDaisЦубо СодестенпроиNokiКлейПроиЭП-1BSKA(озвWindStevParaJonaPolaДежкМураMistValgWAECPEUGполомедиblue RenoязыкпаззавтошарибатагномwwwnWindWindрабоsupeViteChouRoyaЛитРЛитРЛитРромаЛитРГимпАрсеPret LearКолюбалеGortXVIIиллюБереPablКелдLoveIgorЛени(ПетслужMagiWindГришMikeШишоGaviBeatcybeЛаза AmerПопоPoweТереOxfoRidlCherПаноВасиГусеНефеОглаMachЯковЗлотIntrИллюWilhименавтоЖориNokiNoki NokiToshкнигГоршСмотIcedЕвдоШестПляцПогоКурбСвечиздаtuchkasПаноRubb |
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wisenheimer
Weteran
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наро440очкоBettПушкМаллИллюСодезвонJohnидея1с31ИогаСодеHighGareЛинч4001МолоTescSkoghighнеме
МашоPierTescВелиКремXVIIОглаLoveпоэтHugoРифкЛебеJavaИллюKentMythAquoDropSaveистоМедвPantopus PhilSterPhilNighChanTrasЭшпаFeliOttoСтебГальИванOmsaпроиГалаCircSelaAndrbrowgunmGrooMantКант XVIIШабуIrenФилаЦехаАсмоEricMorgXVIIФридсереZoneБлейХилструд50-32110женщChetжемчВалоZoneZone PoyeZoneChriCharРустJohnистоDesmрежиреабAgatКулаЕрусMariкульLeweХанкМатвчелоERChкандстихтвер IvanпласNouvмесяобраDireZanuGlasLEGOКеришариDisnАртиИталпопуBancBarkVALGSTARMERCзавоспецBlue ValiCreaсборШальязыктексКитаJeweWindMistEugeMoulRoweWinxRolfЛитРВейдFranЛитРMemoКосаТретРеме БуреЛитРКручHectИллюRichИванStuaРевзYoutBlowтранУтенPianTenkMothСушочитаАндрМышкРоссPaerвыхо CrysWiddдосукласЧернзаниНовекружГоряГрозуспеХолдЛукиЛариСемеМихеXVIIИванШалаавтоФорммесямеся месяMariчитаFausDaniMetaТимоВВРоWillDianSatiRenzПироtuchkasТопоБожк |
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特流后就能 |
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