Cov txheej txheem ntawm CSMA / CD yog: Thaum lub thav duab npaj txhij, lub chaw xa xov xa mus kuaj seb lub channel puas nyob twj ywm lossis tsis khoom. … Yog hais tias lub channel tsis ua haujlwm, qhov chaw nres tsheb pib kis thiab txuas ntxivsaib xyuas cov channel txhawm rau txheeb xyuas kev sib tsoo. Yog tias pom muaj kev sib tsoo, qhov chaw nres tsheb pib qhov kev daws teeb meem kev sib tsoo.
Can CSMA CD puas muaj kev sib tsoo?
Raws li teeb tsa kom raug CSMA/CD network txuas yuav tsum tsis txhob muaj kev sib tsoo lig, qhov ua rau ib txwm ua tau yog tag nrho-duplex / ib nrab-duplex tsis sib haum, tshaj Ethernet cable ntev txwv, lossis cov khoom siv tsis raug xws li kev xa xov tsis raug, tsis ua raws li cov hubs hauv lub network, lossis NIC phem.
Vim li cas kev sib tsoo tshwm sim hauv CSMA CD?
CSMA/CD ntaus seb lub channel puas yog dawb lossis tsis khoom ua ntej xa cov ntaub ntawv kom nws thiaj li zam kev sib tsoowhereas ALOHA tsis tuaj yeem ntes ua ntej xa thiab yog li ntau lub chaw nres tsheb tuaj yeem xa cov ntaub ntawv ntawm tib lub sij hawm ntawd ua rau muaj kev sib tsoo.
Tus txheej txheem twg yog siv los tuav kev sib tsoo?
CSMA/CA (Carrier Sense Multiple Access/Collision Avoidance) yog tus txheej txheem rau kev sib kis hauv 802.11 tes hauj lwm. Tsis zoo li CSMA/CD (Carrier Sense Multiple Access/Collision Detect) uas cuam tshuam nrog kev sib kis tom qab muaj kev sib tsoo, CSMA/CA ua haujlwm los tiv thaiv kev sib tsoo ua ntej lawv tshwm sim.
Dab tsi yog qhov laj thawj tseem ceeb ntawm kev sib tsoo hauv CSMA raws tu qauv?
Cov txheej txheem CSMA / CA yog qhov zoo heev thaum qhov nruab nrab tsis thauj khoom hnyav vim nws tso cai rau cov chaw nres tsheb xa nrog qhov qeeb qeeb. Tab sis muaj ib txwm muaj caij nyoog ntawm chaw nres tsheb ib txhij paub qhov nruab nrab yog dawb thiab xa mus tib lub sijhawm, ua rau muaj kev sib tsoo.
