Yakananga-kuburikidza
Yakatwasuka-kuburikidza neEthernet switch inogona kunzwisiswa semutsara matrix switch ine crisscross mitsetse pakati pezviteshi. Kana pakiti yedata yaonekwa pachiteshi chekuisa, musoro wepaketi unotariswa, kero yekuenda kwepaketi inowanikwa, tafura yemukati ine simba yekutsvaga inotangwa, uye inoenderana inobuda chiteshi inoshandurwa. Iyo data packet yakabatana pamharadzano yeinopinza uye inobuda, uye data packet yakabatana zvakananga kune inoenderana chiteshi kuti uone basa rekuchinja. Nemhaka yokuti haifaniri kuchengetwa, kunonoka kuduku zvikuru uye kuchinja kunokurumidza zvikuru, iyo ndiyo inobatsira. Izvo zvisingabatsiri ndezvokuti sezvo zviri mukati me data packet hazvina kuchengetwa neEthernet switch, hazvibviri kutarisa kana iyo yakatumirwa data packet yakashata, uye kukwanisa kuona kukanganisa hakugone kupiwa. Nekuti hapana cache, iyo yekupinza / yekubuda madoko ekumhanya kwakasiyana haigone kubatana zvakananga, uye zviri nyore kurasikirwa.
Chengetedza uye mberi
Chengetedza uye yekumberi modhi inzira yekushandisa mumunda wemakombuta network. Inotanga yachengeta data packet yechiteshi chekupinza, yozoita CRC (cyclic redundancy code verification) cheki, inotora kero yekuenda kwepaketi yedata mushure mekugadzirisa pakiti yekukanganisa, uye yoishandura muchiteshi chekubuda kutumira pakiti kuburikidza. tafura yekutsvaga. Nekuda kweizvi, kunonoka kwekuchengetedza uye kutumira mukugadzirisa data kwakakura, iko kuperevedza kwayo, asi inogona kuona zvisizvo mapaketi e data achipinda muchinjiko uye anovandudza zvakanyanya mashandiro etiweki. Kunyanya kukosha ndechekuti inogona kutsigira kutendeuka pakati pezviteshi zvekumhanya kwakasiyana uye kuchengetedza basa rekubatana pakati pezviteshi zvekumhanya-mhanya uye zviteshi zvepasi-kumhanya.
Kuparadzaniswa kwechidimbu
Iyi ndiyo mhinduro pakati pezviviri zvekutanga. Inotarisa kana kureba kwepaketi yedata yakakwana 64 bytes. Kana iri pasi pe 64 bytes, zvinoreva kuti ipakiti yenhema uye pakiti inoraswa; kana yakakura kudarika 64 bytes, packet inotumirwa. Iyi nzira haipe ongororo yedata. Yayo data processing speed inokurumidza kupfuura kuchengetedza uye kutumira, asi inononoka kudarika yakananga kupfuura. Kuunza shanduko yeHirschman switch.
Panguva imwecheteyo, Hirschman switch inogona kufambisa data pakati pezviteshi zvakawanda. Chiteshi chega chega chinogona kutorwa seyakazvimiririra yemuviri network segment (chinyorwa: isiri-IP network segment), uye network network yakabatana nayo inogona kunakidzwa yese bandwidth yakazvimirira pasina kukwikwidza nemimwe michina. Kana node A inotumira data kune node D, node B inogona kutumira data kune node C panguva imwe chete, uye vose vane bandwidth yakazara yetiweki uye vane yavo chaiyo yekubatanidza. Kana 10Mbps Ethernet switch ikashandiswa, iyo yakazara traffic yekuchinja yakaenzana ne2x10Mbps = 20Mbps. Kana 10Mbps yakagovaniswa HUB ikashandiswa, traffic yakazara yeHUB haipfuure 10Mbps.
Muchidimbu, theHirschman chinjamudziyo wetiweki unogona kupedzisa basa rekuvhara uye kutumira data mafuremu zvichienderana nekuzivikanwa kwekero yeMAC. Iyo Hirschman switch inogona kudzidza kero dzeMAC nekudzichengeta mutafura yekero yemukati, uye inosvika zvakananga kune iyo chinangwa kuburikidza nekuchinja kwechinguvana pakati peakatanga uye anogashira anogashira data data.
Nguva yekutumira: Zvita-12-2024