Lub nplhaib network yog dab tsi?

 

Rau cov neeg ua haujlwm nrogoptical modules, lawv feem ntau ntsib qee cov tswv yim tshiab network, xws li, "Vim li cas lub nroog cheeb tsam network (MAN) hu ua lub nroog loj lub nplhaib network?"

Lub nroog cheeb tsam network (MAN) yog kev sib txuas lus hauv ib lub nroog. Dab tsi yog qhov kev sib txuas ntawm qhov ntawd thiab lub nplhaib network?

Ntau tus neeg siv txoj kev loj los piav txog kev sib txuas lus. Rau cov neeg nyob hauv nroog, yog tias koj xav mus xyuas leej twg hauv nroog,

koj tuaj yeem nrhiav txoj hauv kev mus rau lawv lub tsev, txawm tias lawv yuav qhib qhov rooj yog lwm qhov teeb meem.

 

 

Network topology muaj cov kab no; seb puas yog txoj kev qhib yog qhov teeb meem ntawm kev tso cai nkag.

Nees nkaum xyoo dhau los, kuv tuaj rau Optics Valley hauv Wuhan. Tom qab ntawd, nws tsis tau hu ua Optics Valley. Kuv muaj kev nyuaj siab vim muaj kev sib tshuam ntawm peb txoj kev tsuas yog 500 meters ntawm kuv lub qhov rooj. Tsuas yog yuav ib lub tais ntawm noodles txhais tau tias tos mus ib txhis hla txoj kev.

 

Kev hais lus theoretical, sawv ntawm qhov kev sib tshuam, muaj ntau qhov ua tau. Hmoov zoo, 20 xyoo dhau los, qhov no yog thaj chaw deb nroog, nrog ob peb tus neeg thiab tsheb.

Tom qab ntawd, ntau tshaj li kaum xyoo tom qab, lo lus "Optics Valley" tau los ua. Ntau lub tsev, ntau lub lag luam, thiab ntau tus neeg tau tshwm sim, ua rau muaj kev sib tsoo tsheb. Tab sis congestion muaj kev daws teeb meem, thiab yog li ntawd ib lub voj voog tau tsim. Qhov tseem ceeb, nws yog ib txoj kev uas daws cov kev sib txuas ntawm cov rau ntawm qhov kev sib tshuam uas tau hais tseg.

 

 

Ib yam li ntawd, rau cov teeb liab kis tau tus mob, yog tias ib lub node muaj ob qho tib si xa thiab tau txais cov lus qhia, thiab kev xa tawm bidirectional yog xav tau rau lwm 5 nodes, ces 30 optical fibers yuav xav tau.

Siv lub nplhaib network, cov kab tseem ceeb tsuas yog xav tau ib qho fiber ntau optical, uas yooj yim dua.

Rau cheeb tsam cheeb tsam network (MANs), lub nplhaib network tsim yog txoj hauv kev zoo tshaj plaws kom txuag tau cov khoom siv fiber ntau thiab muaj qhov luv tshaj latency.