Chii chinonzi LAN?
LAN zvinoreva Local Area Network.
LAN inomiririra dunhu renhepfenyuro, zvinoreva kuti nhengo dzese dzeLAN dzichagashira mapaketi enhepfenyuro anotumirwa nechero nhengo.Nhengo dzeLAN dzinogona kutaura kune mumwe nemumwe uye dzinogona kuseta nzira dzadzo dzemakomputa kubva kune vakasiyana vashandisi kutaura kune mumwe nemumwe pasina kuenda kuburikidza neInternet.
1) Iyo inonyanya kukosha LAN dhizaini
Sezvinoratidzwa pamufananidzo uri pamusoro, ndiyo inonyanya kukosha LAN marongero.Kana paine michina yakasiyana, unofanirwa kuwana kero yeMCA yemumwe.
Muenzaniso wakadzama: A anotumira ruzivo kuC, asi A haazive kero yeMAC yeC. Panguva ino, kuburikidza neARP protocol (Address Resolution Protocol;) Kuti uwane kero yeMAC yeC, A inotanga kutepfenyura chikumbiro cheARP chine tarisisa IP kero kune ese maturusi akabatanidzwa kune hub.Mushure mekugamuchira nhepfenyuro, C inodzosera kero yeMAC kuA, uye zvimwe zvishandiso zvinorasa ruzivo.Kusvika ikozvino, mamiriro ekugadzirira ekukurukurirana pakati pezvigadzirwa zvakasimbiswa.Maitiro ari pamusoro anogona kurerutswa seanotevera: A - ARP protocol: inogadzirisa iyo MAC kero yeyakananga IP - C inodzosera kero yeMAC ku.
Midziyo yakabatanidzwa muhubhu iri mune imwecheteyo kusawirirana domain uye nhepfenyuro.Nekuti kune imwe chete switch, iyo dhizaini yekunetsana ndiyo dhizaini yekutepfenyura.Kunzwisisa kwakapusa kweiyo dhizaini ndeyekuti mudziyo mumwe chete unogona kutumira chiratidzo panguva uye mamwe maturusi anogona kugamuchira chiratidzo.
2) Iyo hubhu ndiyo yemuviri layer mudziyo, ndiko kuti, yekutanga layer yeOSI.Inonyanya kushandiswa kugamuchira, kudzoreredza, kukudza, uye kutumira masaini.Kana yakamonyoroka pair uye optical fiber inoshandiswa kutumira masaini, nekuwedzera kwechinhambwe, masaini anopera simba uye kukonzera kukanganisa.Kukanganiswa kwechiratidzo kuchaita kuti data rekutumira rive risingazivikanwe, uye pakupedzisira kukonzera kukanganisa kwechiratidzo.Nerubatsiro rwehubhu, chiratidzo chinogona kufamba kure;Panguva imwecheteyo, iyo hubhu ine akawanda mainterfaces, ayo anogona kuwedzera huwandu hwematerminal uye saizi yeLAN.
Dambudziko: Zvese zvishandiso pane imwechete hub zvinogovana bandwidth.Kana iyo nhamba yemidziyo yakakurisa, inokonzeresa kubatana kwekubatanidza uye, mune zvakakomba, dutu renhepfenyuro.
Kufambira mberi: Nzvimbo huru yekukonana inogona kukamurwa kuita matunhu madiki emakakatanwa nekushandisa switch, iyo inogona kuderedza chiyero cheiyo dhizaini yekunetsana uye kuderedza kuungana kwedata.
Iri pamusoro ndiyo tsananguro yeruzivo yeONU LAN yakaunzwa kwauri neShenzhen HDV Phoelectron Technology Co., Ltd. Shenzhen Haidiwei Optoelectronics Technology Co., Ltd.midziyo yekutaurirana.