Hloov ntawm Ethernet cov ntaub ntawv cables thiab wirelessly

Cov ntaub ntawv kis tau tus mob lawm cov network muaj xws li ib tug plurality ntawm kev sib txuas lus kiag li lawm uas muab cov ntaub ntawv raws, thiab ib tug switching ntaus ntawv yog muab ntawm tag nrho cov endpoints pauv lus.

Ntawm tus kheej computers, piv txwv li, cov ntaub ntawv kis tau tus mob yog lus thiab nqa tawm raws li cov kev xav tau ntawm cov neeg ua hauj lwm rau lub PC. Cov pab kiag li lawm yuav ua tau ntsiag to rau ib lub sij hawm ntev, ua hauj lwm ntawm nws tus kheej (cov ntaub ntawv hloov lwm lub tsev yog tsis nqa tawm ntawm lub sij hawm no), thiab ces muab xa qhov chaw cov lus los yog ntaub ntawv. Thaum cov tsawg-ceev xov tooj channel, cov ntaub ntawv no yuav kis tau rau rau ob peb feeb, thiab nws feem ntau irritates cov neeg siv. Yuav kom tshem tawm tej inconveniences network tau tsim, uas siv ib qho high-ceev cable rau tag nrho cov pab kiag li lawm. Peb yuav tsis txhob kov raws li qhov kev txhawb ntawm no, thiab peb muaj peev xwm tsuas hais tias xws li ib tug network yuav tsum sawv cev nyob rau hauv daim ntawv ntawm cov interconnected computers, txhua tus uas ua raws txoj kev channel. Nyob rau hauv cov ntaub ntawv ntawm kev hloov ntawm lub computer paub qhov chaw nyob, thiab tus txiv neej uas nws yog nyob, tau txais cov ntaub ntawv. Yog hais tias tsim nyog, hloov ib lub cov neeg siv yuav tsum tos rau qhov kev tso tawm ntawm cov channel, thiab ces pib cov kev hloov. Yog hais tias nws tshwm sim hais tias ob tug neeg siv ib txhij sim mus txeeb txoj kab, ces tom qab kaw rau ib tug luv luv lub sij hawm, rov sim dua kom txog rau thaum ib tug ntawm lawv ua ntej ntawm lwm cov. Leej twg coj ib qho channel computer yuav siv nws nyob rau tag nrho cov ceev thiab tag nrho. Qhov no yog ib tug heev npaum algorithm rau cov lag luam nyob rau hauv uas cov ntaub ntawv hloov lwm lub tsev yog ceev thiab txhim khu kev qha.

Raws li koj tej zaum twb guessed, qhov no hom ntawm network yog Ethernet lub npe. Thov zoo xws li cov hom kev sib txuas lus nyob rau hauv ib tug me me rau thaj tsam, xws li sab hauv lub tsev. Yog li ntawd nws yog zoo ntawm ib lub zos kev twb kev txuas. Ib tug Ethernet network yog standardized chaw thiab coj yuav luag tag nrho cov ntawm lub ntiaj teb no kev ua lag luam nyob rau hauv nws ya.

Xov tooj cua-Ethernet yog tsim ntau tsis ntev los. Qhov no tshiab qauv, thiab nws muaj ob tug siv. Firstly, nws yog ib tug wireless zos cheeb tsam network nyob rau hauv lub phab ntsa ntawm ib lub tsev los yog nyob rau thaj chaw. Nws daws tau qhov teeb meem ntawm "limited muaj" nyob rau hauv lub koom haum - tag nrho cov neeg ua hauj lwm muaj kev nkag tau rau high-zoo network. Ob, xov tooj cua-Ethernet connectivity tso cai rau koj yuav pab kom cov teeb meem mus rau ib tug loj network ntawm cov neeg rau npe, thiab cov kev hloov ntawm koj tus kheej cov ntaub ntawv yog nqa tawm bypassing cov mais kawg teeb meem. Lub sij hawm "mais kawg" yog siv nyob rau hauv kev txiav txim connectivity ntawm lub neeg thiab qhov ze rau nws nyob rau hauv lub node "ib tug loj network." Qhov kev ncua deb yog nyob rau hauv kev muaj tiag yuav txawv los ntawm ib tug ob peb meters mus txog 20-30 kilometers.

Nws yog tsis tsim nyog nqa mus rau txhua neeg yuav mloog xov tooj cua "taw tes rau taw tes", vim hais tias nyob rau hauv cov ntaub ntawv no, rau kev siv technology tshiab yog vim li cas, lub channel yuav kim, thiab cov ntaub ntawv yuav tsum pumped maj mam. Yog li ntawd nws yog ntau npaum li cas zoo mus teem lub channel "point-to-multipoint" thiab ua rau nws muaj ntau subscribers. Cov subscribers yuav siv nws nyob rau hauv lub tsheb sib tsoo hom, xws li ib tug Ethernet network. Qhov kev txiav txim tau xeeb thiab tsim tsuas yog tsis ntev los no, thiab nws yog sib xws nrog cov pa Ethernet-cable. Xov tooj cua-Ethernet txheem IEEE nyuam qhuav tau txais lub International Committee, thiab nws muab cov kev stability ntawm ua hauj lwm zoo ua hauj lwm.