Hom IPC network cards muaj dab tsi? Cov haujlwm yog dab tsi?
Daim npav network ntawm lub khoos phis tawj tswj yog lub network tivthaiv uas ua haujlwm ntawm cov ntaub ntawv txuas txheej. Thaum tag nrho-hauv-ib lub tshuab computer xav txuas thiab sib txuas lus nrog rau sab nraud hauv cheeb tsam network, nws tuaj yeem ua tiav los ntawm kev ntxig ib daim npav network rau hauv lub chassis ntawm tag nrho-hauv-ib lub tshuab computer.
ntawm.
Hom kev lag luam hauv computer network card muaj dab tsi?
Hom 1: wired network card thiab wireless network card
Lub wired network card feem ntau txuas nrog optical fiber Ethernet hloov los ntawm optical fiber cable. Daim npav wireless network yog wireless hauv cheeb tsam network (WLAN) uas siv xov tooj cua tsis yog qhov nruab nrab rau kev xa xov xwm. Qhov sib txawv ntawm lub wired network yog nyob rau hauv qhov nruab nrab kis tau tus mob. Nws siv xov tooj cua tshuab los hloov lub network cable. Daim npav wireless network txuas nrog hauv txoj hauv kev wireless kom paub txog kev siv Internet.
Hom 2: Ceev Ethernet thiab Gigabit Ethernet
Raws li qhov sib txawv sib kis tau txhawb los ntawm daim npav network ntawm lub tshuab tswj kev lag luam, nws tuaj yeem muab faib ua 10Mbps network card, 100Mbps network card (100Mbps network card), 10/100Mbps adaptive network card thiab 1000Mbps network card (Gigabit network card) . kuj dav. Feem ntau, 1000Mbps kev lag luam tswj tag nrho-hauv-ib daim npav network feem ntau yog siv rau hauv kev lag luam tswj server uas yuav tsum ceev ceev.
Taw qhia rau kev ua haujlwm ntawm daim npav network ntawm lub khoos phis tawj muaj
Muaj nuj nqi 1. Cov ntaub ntawv encapsulation thiab decapsulation
Thaum xa, ntxiv cov header thiab tus Tsov tus tw rau cov ntaub ntawv xa mus los ua Ethernet ncej. Thaum tau txais, strip lub header thiab tus Tsov tus tw ntawm Ethernet thav duab, thiab tom qab ntawd xa mus rau txheej sab saud. Cias muab, nws yog encapsulate cov ntaub ntawv ntawm kev lag luam tswj tshuab rau hauv thav ntawv, thiab xa cov ntaub ntawv mus rau lub network los ntawm electromagnetic tsis; Qhov thib ob yog kom tau txais thav duab los ntawm lwm yam khoom siv hauv lub network, rov ua cov thav duab rau hauv cov ntaub ntawv, thiab xa mus rau lub tshuab tswj kev lag luam uas nws nyob. hauv lub tshuab.
Function 2, txuas kev tswj hwm
Thaum ib daim npav network tau txais ib qho kev ua yuam kev, nws muab cov thav duab pov tseg yam tsis tau ceeb toom rau lub khoos phis tawj nws txuas rau. Thaum lub network-daim npav tau txais tus ncej raug, nws siv qhov cuam tshuam los ceeb toom rau lub khoos phis tawj thiab xa mus rau lub network txheej hauv pawg txheej txheem. Thaum lub khoos phis tawj xav xa cov ntaub ntawv IP, nws raug xa los ntawm cov txheej txheem txheej txheem mus rau daim npav network kom sib sau ua ke thiab xa mus rau thaj chaw hauv cheeb tsam.
Muaj nuj nqi 3. Kev xa tawm thiab kev txiav txim siab
Thaum txhim kho daim npav network, cov cuab yeej tsav tsheb rau daim npav tswj hwm lub network yuav tsum tau muab tso rau hauv lub khoos phis tawj ua haujlwm. Tom qab ntawd tus neeg tsav tsheb yuav qhia lub network card qhov twg hauv lub cim xeeb cov ntaub ntawv thaiv xa los ntawm LAN yuav tsum muab khaws cia. Daim npav network kuj tseem tuaj yeem ua raws li Ethernet raws tu qauv.
