Lub nplhaib network hloov ua haujlwm ntawm cov ntaub ntawv txuas txheej, nrog lub tsheb loj-bandwidth rov qab thiab sab hauv hloov matrix.Tom qab lub tswj Circuit Court tau txais cov ntaub ntawv pob ntawv, qhov chaw nres nkoj ua haujlwm saib cov lus qhia chaw nyob hauv lub cim xeeb los txiav txim siab qhov chaw nres nkoj network (network card) ntawm lub hom phiaj MAC (network card hardware address) txuas nrog.Cov pob ntawv cov ntaub ntawv raug xa mus sai sai rau qhov chaw nres nkoj los ntawm kev hloov pauv hauv matrix.Yog tias lub hom phiaj MAC tsis muaj, nws yuav tshaj tawm rau txhua qhov chaw nres nkoj.Tom qab tau txais cov lus teb chaw nres nkoj, lub nplhaib network hloov yuav "kawm" qhov chaw nyob MAC tshiab thiab ntxiv rau hauv lub rooj MAC chaw nyob sab hauv.Los ntawm kev sib piv cov lus IP chaw nyob, lub nplhaib network hloov tso cai tsuas yog tsim nyog network khiav mus los ntawm lub nplhaib network hloov.Los ntawm kev lim thiab xa tawm ntawm lub nplhaib network hloov, qhov kev sib tsoo tuaj yeem txo qis, tab sis lub network txheej tshaj tawm tsis tuaj yeem ua tau. faib, uas yog, tshaj tawm tshaj tawm.

Loop hloov chaw nres nkoj.Lub voj hloov pauv tuaj yeem xa cov ntaub ntawv ntawm ntau qhov chaw nres nkoj nyob rau tib lub sijhawm.Txhua qhov chaw nres nkoj tuaj yeem suav tias yog ntu ntu ntawm lub cev sib txuas (Ceeb toom: ntu tsis yog IP network).Cov khoom siv hauv network txuas nrog nws tuaj yeem txaus siab rau txhua qhov bandwidth yam tsis muaj kev sib tw nrog lwm cov khoom siv.Thaum node A xa cov ntaub ntawv mus rau ntawm D, node B tuaj yeem xa cov ntaub ntawv mus rau node C tib lub sijhawm, thiab ob lub nodes txaus siab rau tag nrho cov bandwidth ntawm lub network thiab muaj lawv. tus kheej kev sib txuas virtual.Yog siv 10Mbps Ethernet nplhaib network hloov, tag nrho cov ntws ntawm lub nplhaib hloov pauv yog sib npaug rau 2 * 10Mbps = 20Mbps.Thaum siv 10Mbps sib koom hub, tag nrho cov khiav ntawm lub hub tsis tshaj 10Mbps.In luv luv, lub nplhaib hloov yog ib tug network ntaus ntawv raws li MAC chaw nyob qhia, uas yuav ua kom tiav cov encapsulation thiab xa mus ua hauj lwm ntawm cov ntaub ntawv thav ntawv.Lub nplhaib hloov tuaj yeem "kawm" qhov chaw nyob MAC thiab khaws cia rau hauv lub rooj chaw nyob sab hauv.Los ntawm kev tsim txoj kev hloov pauv ib ntus ntawm tus pib thiab lub hom phiaj txais ntawm cov ntaub ntawv thav duab, cov ntaub ntawv thav duab tuaj yeem ncav cuag lub hom phiaj chaw nyob los ntawm qhov chaw nyob.

Lub nplhaib hloov tsav.Kev sib kis hom ntawm lub nplhaib hloov yog puv-duplex, ib nrab-duplex, puv-duplex / ib nrab-duplex adaptive.Tag nrho duplex ntawm lub nplhaib network hloov txhais tau hais tias lub nplhaib network hloov tau txais cov ntaub ntawv thaum xa cov ntaub ntawv.Ob txheej txheem no yog synchronized, raws li peb feem ntau hais, peb kuj tuaj yeem hnov ​​​​ib leeg lub suab thaum peb hais.Txhua lub nplhaib keyboards txhawb nqa puv duplex.Qhov zoo ntawm tag nrho duplex yog me me qeeb thiab ceev ceev.

Thaum peb tham txog full-duplex, peb tsis tuaj yeem tsis quav ntsej lwm lub tswv yim uas muaj feem xyuam nrog nws, uas yog, "ib nrab-duplex."Qhov hu ua ib nrab-duplex txhais tau hais tias tsuas yog ib qho kev txiav txim tshwm sim hauv lub sijhawm.Piv txwv li, txoj kev nqaim tsuas yog hla ib lub tsheb tib lub sijhawm xwb.Thaum ob lub tsheb tsav tsheb nyob rau hauv qhov sib txawv, tsuas yog ib qho kev ntsuas tuaj yeem ua rau qhov no.Qhov piv txwv no qhia txog lub hauv paus ntsiab lus ntawm ib nrab-duplex.Thaum ntxov walkie-talkies thiab thaum ntxov hubs yog ib nrab-duplex khoom.Nrog kev nce qib ntawm kev siv thev naus laus zis tas li, ib nrab-ob lub koomhaum maj mam thim rov qab los ntawm theem ntawm keeb kwm.