Gigabit Switches: Lub tswv yim rau kev xaiv

Modernization ntawm lub zos enterprise network computers - ib tug ua hauj lwm uas yuav ua ntej los yog tom qab lub ntsej muag tag nrho system cov thawj coj. Paub interoperability computers ua ke tsim pom ua hauj lwm tej yam kev mob rau cov neeg ua haujlwm nyob rau hauv lub neej yav tom ntej yuav ua rau ib qho kev nce nyob rau hauv lub tuam txhab txoj kev vam meej. Cov ntsiab chav tsev, lub plawv ntawm tej tsim network yog gigabit keyboards. Lawv muab tus multi-threaded thiab high-ceev cov ntaub ntawv hloov lwm lub tsev thiab branching teeb liab. Qhov tseeb xaiv ntawm lub caij nyob rau hauv lub hauj lwm ntawm lub network thiab lub enterprise raws li ib tug tag nrho.

Hloov thiab hub

Hloov - ib tug ntaus ntawv uas muab lub union ntawm ob peb computers nyob rau hauv ib LAN thiab ua hauj lwm pab los txhim kho qhov zoo ntawm cov kis lub teeb liab. Raws nraim tib yam zog yog ua los ntawm lwm yam network khoom - ib tug hub (nrog English Hub -. Tej ntawm nyob rau hauv lub network). Txawm li cas los, thaum xaiv cov kws txawj tau ntev pom zoo kom muab nyiam rau cov keyboards. Dab tsi ua rau qhov no?

hub ua hauj lwm yuav muab piv rau lub lag luam ntawm ib tug pa repeater - nws tau txais lub teeb liab thiab forwards nws rau tag nrho cov kev cob cog rua computers, tsis hais dab tsi nws yog computer tsim txaus ntawm cov ntaub ntawv. Raws li ib tug ntawm xws li ib tug "loj xa" LAN ceev "slaughter", txo cov kis tau tus mob npaum li cas raws li ib tug tag nrho. Nyob rau hauv tas li ntawd, qhov ntau koj teem lub hubs mus rau lub network, qhov ntau dua qhov yuav tshwm ntawm ib tug batch ntawm lub cua daj cua dub - nyob qhov twg ib tug lossis loj tus naj npawb ntawm spurious packets xa hla lub network.

Ordinary thiab Gigabit keyboards tam sim ntawd tom qab kev twb kev txuas yog tsis sib txawv ntawm cov hub. Tab sis thaum lub sij hawm, lawv tsim ib tug switching rooj, los yog ib tug txiav txim kom daim ntawv teev cov MAC chaw nyob ntawm cov computers, raws li uas tus pob ntawv cov ntaub ntawv yuav raug xa mus nyob rau hauv lub neej yav tom ntej. Yog li, zoo functionality txhawb los ntawm lub network.

Cov nab npawb ntawm cov ports thiab cov kev ceev

Performance LAN nyob ntawm tus tes hloov qhov chaw. Txawm lub pheej yig tshaj li muaj ntau nta uas muab lawv sib nrug los ntawm lwm cov neeg hauv no tus nqi qeb. Txawm li cas los, thaum koj xaiv yuav tsum tau them nyiaj mloog xwb los ib co ntawm cov tseem ceeb tshaj plaws tsis. Tus thawj yog tus naj npawb ntawm ports. Nws txiav txim rau tus xov tooj ntawm network pab kiag li lawm uas yuav tau kev cob cog rua rau tus tes hloov qhov. Feem ntau, cov xov tooj ntawm ports txawv ntawm 5 mus rau 48. Ib qho tseem ceeb parameter yog cov ntaub ntawv tus nqi - cov kev ceev ntawm uas txhua ua hauj lwm gigabit chaw nres nkoj nyob tus tes hloov qhov. Nyob rau hauv peb cov ntaub ntawv nws tsis yog tsawg tshaj li 1000 MB / sec. Tab sis feem ntau ntawm cov khoom txhawb tus qauv IEEE 802,3 Nway - pib-nrhiav kom tau cov ntawv tus nqi.

muaj peev xwm

Bandwidth - cov khoom ntawm tus xov tooj ntawm ports rau siab tshaj plaws cov ntaub ntawv tus nqi. Qhov no parameter txiav txim qhov kev kawm ntawm lub cev thaum lub caij ntawm ncov load. Optimally, qhov no daim duab yuav ua tau ntau dua, cov ntaub ntawv kwj kis los ntawm tag nrho cov PCs nyob rau tib lub sij hawm. Piv txwv li, koj hloov muaj 10 ports ntawm speeds mus txog rau 300 Mb / s. Nws muaj peev xwm yog 2 GB / s. Thaum lub sij hawm ncov load ports yuav tsum tau mus rau kis cov ntaub ntawv ndlwg ntawm 3 Gb / s, uas yog qis dua lub bandwidth. Cov Gigabit keyboards yuav tsis tau tiv nrog ncov thov thiab hamper lub chaw ua hauj lwm ntawm tag nrho cov enterprise.

Network kawm nyob rau hauv lub sib haum ntawm Full-ob lub tsev thiab ib nrab-ob lub tsev. Nyob rau hauv tag nrho-ob lub tsev hom, cov kis ntawm cov ntaub ntawv packets yuav siv sij hawm qhov chaw ib txhij nyob rau hauv ob cov lus qhia - los ntawm ib tug mus rau lub computer thiab vice versa. Lub ib nrab-ob lub tsev hom, lub teeb liab yog kis tau xwb nyob rau hauv ib tug coj. Ua-txuam kom tsis txhob sib haum thaum lub sij hawm lub lag luam ntawm network li siv ntau hom.

Qhia

Thaum xaiv tus tes hloov qhov yog ib qho tseem ceeb them sai sai mus rau lub luaj li cas ntawm cov switching rooj uas hais txog "cov npe" chaw nres nkoj mus rau lub MAC chaw nyob ntawm lub computer. Qhov no parameter yuav tsum tau txiav txim los ntawm tus xov tooj ntawm PCs nyob rau hauv koj lub network. Nyob rau hauv tus neeg mob qhov twg lub cim xeeb cov khoom yuav tsis muaj chaw rau cov ntaubntawv povthawj siv tshiab network ntaus ntawv, nws yuav tshem tawm qhov chaw nyob ntawm lub tsuj tsawg-siv PC, thiab ces rov pib nws nrhiav. Qhov no ho thiaj li ua tau zoo.

Flow Control feature yuav tsum muaj tag nrho cov gigabit keyboards, vim hais tias nws muab kev tiv thaiv tiv thaiv cov ntaub ntawv tsis. Nrog kev pab los ntawm ob pab kiag li lawm "sib" ntawm lawv tus kheej, nyob rau hauv uas txiav txim thiab thaum xa lub teeb liab.

hloov kev tswj

Raws li lub hom tswj keyboards raug muab faib ua ob pawg - tswj thiab unmanaged. Nyob rau hauv thawj cov ntaub ntawv peb muaj ib tug tag nrho autonomous ntaus tsis cuab yeej phau ntawv hloov thiab calibration. Nws yog zoo tshaj plaws haum rau lub chav me me los yog lub tsev network, vim hais tias nws muaj ib tug uas tsis muaj nqi, tsis yuav tsum tau kev pab tib neeg. Nws lub ntsiab drawback - tsawg productivity, uas tsis pub nws siv nyob rau hauv ib tug loj enterprise. Managed Gigabit Hloov kuj tso cai nyob rau hauv tsis siv neeg hom, tab sis muaj ib tug ntau yam ntawm cov cuab yeej los ntawm qhov uas ib tug neeg khiav dej num yuav tau kho nws ua hauj lwm tsis muaj teeb meem. Raug cov neeg sawv cev yog JetStream, TP-Link, D-Link. Lawv tseem ceeb disadvantage - tus nqi siab.

10 gigabit keyboards

Nyob rau hauv ib tw ib puag ncig nws tseem ceeb heev yuav tsum tau mus kom ceev kev txiav txim siab thiab muab kev txiav txim. Yuav kom ua qhov no ua tau, nws yog tsim nyog los equip lub enterprise nrog kev kub ceev keyboards, muab cov ntaub ntawv hloov lwm lub tsev speeds mus txog rau 10 Gb / s. Nws yog hais tias muaj xws li nyob rau hauv kev ua lag luam rau ntau tshaj 10 xyoo dhau los. Txawm li cas los, lawv yeej tseem ceeb, thiab hloov lawv yog tsis pom tsis tau.

Yuav kom txuas lub 10-gigabit mus, koj yuav siv tau fiber optic cable, twinax los yog dog dig tooj liab hlau UTP / FTP txheem. Niaj hnub no, feem ntau nrov yog pab kiag li lawm uas txuas pa tooj liab hlau. Lawv muab cov ntaub ntawv rau 10GBASE-T technology, muaj ib tug uas tsis muaj nqi thiab ua kom lub network raws li saj zawg zog li sai tau. Nyias, nws muaj nqis ntsoov teev rov qab compatibility nrog Gigabit tes hauj lwm.

hloov cov neeg muag khoom

Opens peb daim ntawv teev Alcatel-Lucent lub tuam txhab. Nws OmniSwitch tsev neeg ntawm pab kiag li lawm yog npaj rau qhov kev siv ntawm nruab nrab thiab loj, raws li zoo raws li rau cov ntaus ntawv me me enterprise tub ntxhais tes hauj lwm. Lub OmniSwitch 6850E qauv feature 10-Gigabit mus yog muaj raws li ib tug ntxiv, tab sis nyob rau hauv lub OmniSwitch 6900 tau ua 64 ports rau high-ceev tuaj rau lawv kis tau tus mob.

Tuam txhab D-Link muaj ib tug ntau ntawm tsuas yog ob tug neeg sawv cev ntawm pawg no ntawm pab kiag li lawm. Nws 8-Chaw nres nkoj Gigabit Desktop Hloov DXS-3600-16S muab kev twb kev txuas ntawm ib lub PC ntawm ib tug taag chaw nres nkoj SFP +, tab sis nyob rau hauv lub DXS-3600-32S qauv muaj twb 24 zoo xws li cov connector. Ob leeg li muaj ib lub rooj zaum rau cov expansion module, uas yuav tsum tau txuas mus rau lub network ntawm 10GBASE-T technology.

Cisco lub tuam txhab yuav tsis thov ua kom tiav cov khoom siv. Txawm li cas los, nws muaj ib tug ntau nqi-zoo tshuaj nyob rau hauv daim ntawv ntawm cov plug-nyob rau hauv modules, piv txwv li, Nexus thiab Catalyst. Cov "extensions" yuav siv mus txuas rau ib network tog twg los ntawm ib tug tooj liab cable los ntawm optical fiber.

HP yog muab nws cov Gigabit keyboards rau cov kev xav tau ntawm cov me me thiab medium lag luam. Ib qho ntawm feem tseem ceeb cov neeg sawv cev yog HP 6125G / XG, uas yog ib tug hybrid ntaus ntawv - 1/10-gigabit mus. Heev dua lwm yam 10-gigabit hloov series qauv hais 5820. Lawv muaj qhov ceev rau rooj SFP +. Txawm li cas los, ntawm cov pab kiag li lawm yuav nrhiav tau, thiab Poe-gigabit hloov Industrial HP 5920 series.

Yuav ua li cas mus xaiv rau koj lub tsev network?

Yog hais tias koj siv ib tug wireless kev twb kev txuas rau combining pab kiag li lawm mus rau lub tsev network yog tsis yooj yim sua los yog tsis tsim nyog vim tsis muaj cov ntaub ntawv nqi, nws yog qhov zoo tshaj plaws los mus siv unmanaged keyboards. Ua ntej, lawv yog cheaper. Secondly, lawv yog ib qho yooj yim mus cuag thiab configure, tsis yuav tsum tau tus neeg siv kev pab. Qhov zoo tshaj plaws kev xaiv yog yuav mus yuav tus qauv TP-LINK TL-SG1008D. Tus tes hloov qhov muaj 8 ports rau kev twb kev txuas, tej hauj lwm los ntawm lub hwj huam mov unit txuas mus rau lub qhov hluav taws xob. Cov ntaub ntawv kis tau tus mob yog guaranteed ntawm speeds ntawm 1 Gb / s.

koj muaj peev xwm xaiv ib tug kho qhov muag Gigabit TRENDnet los yog ASUS ntau lawm tes hloov qhov yog qhov kev kawm. Tus nqi ntawm cov pab kiag li lawm yog nyob rau ntawm ib taus, thiab lawv functionality nrog lub taub hau txaus kom tau raws li cov kev xav tau ntawm lub tsev network.