Dab tsi yog lub hub hauv nws?
Dab tsi yog lub hub hauv nws?

Video: Dab tsi yog lub hub hauv nws?

Video: Dab tsi yog lub hub hauv nws?
Video: Koj Hais Dab Tsi?/Suabci Kwm & Ab Meej Ham/Official MV 2023 2024, Kaum ib hlis
Anonim

A hub , kuj hu ua network hub , yog ib qho kev sib txuas taw tes rau cov khoom siv hauv lub network. Hubs aredevices feem ntau siv los txuas ntu ntawm LAN. Cov hub muaj ntau qhov chaw nres nkoj. Thaum ib pob ntawv tuaj txog ntawm ib qho chaw nres nkoj, nws tau theej rau lwm qhov chaw nres nkoj kom txhua ntu ntawm LAN tuaj yeem pom cov pob ntawv.

Tsis tas li ntawd, dab tsi yog lub hub hauv kev suav?

1. Thaum xa mus rau lub network, a hub yog qhov tseem ceeb tshaj plaws kev sib tham ntaus ntawv uas txuas ntau yam khoos phis tawj los yog lwm yam khoom siv network ua ke. Tsis zoo li anetwork hloov lossis router, lub network hub tsis muaj routingtables lossis kev txawj ntse ntawm qhov chaw xa cov ntaub ntawv thiab tshaj tawm cov ntaub ntawv network thoob plaws txhua qhov kev sib txuas.

Tsis tas li ntawd, hub yog dab tsi thiab nws hom? Muaj peb yam yooj yim hom ntawm hubs . Passive Hub : Qhov no hom ntawm tsis amplify lossis boostthe teeb liab. Nws tsis manipulate los yog saib cov tsheb uas crossesit. Lub passive hub tsis xav tau hluav taws xob ua haujlwm. Active Hub : Nws amplifies cov khoom xa tuaj ua ntej dhau mus rau lwm qhov chaw nres nkoj.

Tsis tas li ntawd, qhov txawv ntawm lub router thiab lub hub yog dab tsi?

Cov ntsiab lus. Hubs yog " ruam" cov khoom siv uas kis tau rau txhua yam tau txais ntawm ib qho kev sib txuas rau txhua qhov kev sib txuas. Cov keyboards yog cov khoom siv ib nrab ntse uas kawm cov khoom siv twg ntawm qhov kev sib txuas. Routers yog cov khoos phis tawj me me uas ua tau ntau yam kev txawj ntse.

Puas yog hub Layer 1 lossis 2?

Hubs yog txheej 1 khoom siv, Hubs tsuas yog splitters. Hubs tsis zoo li cov keyboards tsis muaj kev txawj ntse thiab tsis ua cov pob ntawv hauv txhua txoj kev. Lawv tsuas yog xa tag nrho cov ntaub ntawv tau txais ntawm lub hub tawm mus rau tag nrho lwm cov activeports ntawm lub hub nrog rau kev zam ntawm cov khoom nkag.

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