IEEE 802.3 yog dab tsi?

IEEE 802.3 yog ib pab pawg ua haujlwm uas tau sau lub koom haum ntawm Hluav Taws Xob thiab Hluav Taws Xob Hluav Taws Xob (IEEE) tus qauv txheej txheem, uas txhais tau hais tias kev nkag mus tau nruab nrab (MAC) ntawm ob lub cev thiab cov ntaub ntawv txuas cov khaubncaws sab nraud povtseg ntawm wired Ethernet.Qhov no feem ntau yog ib cheeb tsam hauv cheeb tsam network (LAN) thev naus laus zis nrog qee qhov chaw dav dav (WAN) kev siv.Tsim kom muaj kev sib txuas ntawm lub cev ntawm cov nodes thiab cov khoom siv hauv vaj tse (hubs, keyboards, routers) los ntawm ntau hom tooj liab lossis optical cables

802.3 yog ib lub tshuab uas txhawb IEEE 802.1 network architecture.802.3 kuj txhais ib txoj kev nkag LAN siv CSMA/CD.

Subnet Mask yog dab tsi?

Lub npog ntsej muag subnet tseem hu ua lub npog ntsej muag network, daim npog qhov ncauj qhov ntswg, lossis lub npog ntsej muag subnetwork.Nws qhia tias cov khoom twg ntawm qhov chaw nyob IP txheeb xyuas lub subnet ntawm tus tswv tsev thiab cov khoom twg txheeb xyuas qhov bitmask ntawm tus tswv tsev.Lub npog ntsej muag subnet tsis tuaj yeem nyob ib leeg.Nws yuav tsum tau siv ua ke nrog tus IP chaw nyob.

Lub npog ntsej muag subnet yog qhov chaw nyob 32-ntsis uas npog ib feem ntawm qhov chaw nyob IP kom paub qhov txawv ntawm lub network ID los ntawm tus tswv ID, thiab qhia seb tus IP chaw nyob yog nyob ntawm LAN lossis WAN.