Gigabit Ishintsha: Amathiphu ngokukhetha

Yesimanje wendawo amakhompyutha inethiwekhi kwamabhizinisi - umsebenzi ukuthi kuyaye kamuva nazo zonke abaphathi uhlelo. Okuthuthukisiwe amakhompyutha ukusebenzelana ndawonye ukudala izimo zokusebenza eliphezulu abasebenzi esikhathini esizayo kuzoholela ukwanda impumelelo yale nkampani. Iyunithi main, inhliziyo iyiphi inethiwekhi athuthukile kukhona Gigabit ukushintshwa. Zinikeza bushelelezi multi-threaded futhi ngesivinini ukudlulisela idatha isignali ekhelini. Uzokhetha timphawu incike ekusebenzeni inethiwekhi kanye ibhizinisi lonke.

Shintsha futhi Ihabhu

Shintshela - idivaysi enikeza inyunyana amakhompyutha eziningana LAN akashadile futhi ukhonza ukuthuthukisa ikhwalithi isignali ngocansi. Uqinisile imisebenzi efanayo eyenziwa ezinye imishini inethiwekhi - isikhungo (isiNgisi Hub -. Noma yimuphi engeyokuqala ku inethiwekhi). Nokho, lapho sekuyisikhathi eside izazi ngokukhetha Kunconywa ukuba makudle ukushintshwa. Kubangwa yini lokhu?

umsebenzi ihabhu ingafaniswa nokuqhutshwa repeater ezivamile - elamukelayo uphawu athumele kuwo wonke ama-computer axhunywe, kungakhathaliseki ukuthi iyini ikhompyutha yakhelwe kolwazi. Ngenxa yalokho we "lwamakheli mass" LAN okusheshayo "ngokuceka" enjalo, kunciphise ukudluliswa iyonke. Ngaphezu kwalokho, kulapho uzibekela Izikhumulo kunethiwekhi, ayanda amathuba kwinqwaba isiphepho - lapho lenqwaba amaphakethe engamanga wathumela ngenethiwekhi.

Ordinary futhi Gigabit sekuqalile ngokushesha emva uxhumano akuhlukile ihabhu. Kodwa ngokuhamba kwesikhathi, akha etafuleni usuke, noma uhide ngaphambilini we-MAC amakheli amakhompyutha, owawuthi packet data uthunyelwa esikhathini esizayo. Ngakho, ukusebenza elikhulu inethiwekhi.

Isibalo nezimbobo futhi ijubane

Ukusebenza LAN kuncike izilungiselelo inkinobho. Ngisho amadivaysi eshibhe babe izici eziningi ukuthi usethe kubo bahluke kwezinye amalungu kulesi sigaba intengo. Nokho, uma ukhetha kufanele sinake kuphela ezinye nemingcele ezibaluleke kakhulu. Eyokuqala inani nezimbobo. Ithola inani lamadivayisi inethiwekhi ukuthi kungenziwa exhunywe kwi-inkinobho. Ngokuvamile, inani nezimbobo kuhluka 5 kuya 48. Enye ipharamitha okubalulekile izinga idatha - ijubane lapho ngayinye isebenza Gigabit itheku elisogwini inkinobho. Esimweni sethu akusiyo esingaphansi 1000 MB / sec. Kodwa iningi imishini isekela IEEE 802,3 Nway - ngokuzenzakalela ukuthola iphakethe izinga.

umthamo

Ubungako bokudlulisa - umkhiqizo inani nezimbobo esiphezulu idatha izinga. Lokhu ipharamitha inquma ukusebenza kohlelo okwamanje lomthwalo ezimatasa. Ngokufanele, lesi sibalo kuyoba ephakeme, ukusakaza idatha ngocansi kusukela wonke ama-PC ngesikhathi esifanayo. Ngokwesibonelo, lokho kushintsha kwakho has 10 nezimbobo ngesivinini esingafinyelela ku-300 Mb / s. umthamo Its 2 GB / s. Phakathi isiqongo umthwalo nezimbobo uzokwazi adlulisele ulwazi ukugeleza 3 GB / s, okuyinto ingaphansi kwe-bandwidth. Lezi ukushintsha Gigabit ngeke ukwazi ukubhekana nezidingo isiqongo futhi ziphazamise umsebenzi wonke ibhizinisi.

Ukusebenza kwenethiwekhi incike nokudidiyela-Duplex Isigamu Okugcwele-Duplex futhi. Kwimodi Okugcwele-Duplex, ukudluliswa kwe-amaphakethe idatha kwenzeka kanyekanye ezimbili - kusuka inkinobho kukhompyutha, noHezekeli. Imodi Isigamu-Duplex, isiginali idluliselwa kuphela kwelinye direction. Esakhelwe ngaphakathi afanayo ukuze kugwenywe izingxabano phakathi ukusebenza amadivayisi kunethiwekhi usebenzisa izindlela ezahlukene.

Gcizelela

Uma ukhetha inkinobho kubalulekile ukuba banake usayizi etafuleni usuke ezihlobene "amagama" Imbobo kuya le-MAC computer. Lokhu ipharamitha Kufanele sizimisele kusukela isibalo PC kunethiwekhi yakho. Ezimweni lapho imishini inkumbulo ngeke kusaba khona indawo uqopha idivayisi entsha inethiwekhi, uyosusa ikheli PC engasetshenzwa esetshenziswa, bese uphinda uqala zokusesha. Lokhu kwehlisa ukusebenza.

Flow Control isici kufanele ube nawo onke ukushintsha Gigabit, ngoba inikeza isivikelo ukulahleka kwedatha. Ngosizo amadivaysi amabili kuya "ukuxoxisana" phakathi kwabo, lapho oda futhi lapho ukuthumela isignali.

inkinobho ukuphathwa

Ngokusho uhlobo control ukushintsha zihlukaniswe ngezigaba ezimbili - ephethwe nengaphethwe. Esimweni sokuqala siba kudivayisi ezizimele ngokugcwele ngaphandle amathuluzi manual ukulungiswa kanye Samandla. Kungcono ukuhanjwa ehhovisi elincane noma inethiwekhi ekhaya, ngoba eziphansi, akudingi Ukungenela komuntu. ethile Its main - umkhiqizo ongaphakeme, okuyinto ayikuvumeli ukusetshenziswa kwayo inkampani enkulu. Kuphethwe Gigabit Shintsha futhi isebenza kwimodi okuzenzakalelayo, kodwa has a amathuluzi anhlobonhlobo ngawo umlawuli ungalungisa umsebenzi wakhe ngaphandle nobunzima. abameleli Abaningi bazizwa njengodade JetStream, TP-Link, D-Link. kusimo sabo abalulekile - amanani aphezulu.

10 Gigabit ukushintshwa

Endaweni yokuncintisana kubaluleke kakhulu ukuze bakwazi ukwenza izinqumo ezisheshayo futhi anikeze imiyalo. Ukuze wenze lokhu, kubalulekile ukuhlomisa ibhizinisi ngesivinini ukushintshwa, ukuhlinzeka ukudluliswa kwedatha isheshisa-10 GB / s. Kuthiwa kwakukhona kumadivayisi ezifana emakethe iminyaka engaphezu kwengu-10 edlule. Noma kunjalo, zisekhona efanele, futhi esikhundleni sazo ayitholakali okwamanje.

Ukuze uxhume switch 10-Gigabit, ungasebenzisa fibre optic ikhebula, twinax noma abavamile zethusi wire UTP / FTP ejwayelekile. Namuhla, ethandwa kakhulu kukhona amadivayisi ukuxhuma ezivamile zethusi wire. Zinikeza idatha 10GBASE-T ubuchwepheshe, abe eziphansi futhi wenze inethiwekhi njengoba nezimo ngangokunokwenzeka. Endaweni ehlukile, kuyafaneleka Uhlelo Oluvumelana Nesixazululi nkinga nge Gigabit amanethiwekhi.

inkinobho nabathengisi

Ivula uhlu lwethu Alcatel-Lucent inkampani. OmniSwitch umkhaya wayo amadivayisi senzelwe ukwakhiwa medium and enkulu, kanye idivayisi encane amanethiwekhi ibhizinisi core. Leyo mikhumbi OmniSwitch 6850E isici 10-Gigabit switch itholakala njengoba i extra, kodwa OmniSwitch 6900 uye lakha amatheku okunakekela 64 ngoba ngesivinini iphakethe yokudlulisela.

Inkampani D-Link inebanga ezimbili kuphela abameleli kulesi sigaba amadivayisi. Wakhe 8-Port Gigabit Desktop Shintsha DXS-3600-16S inikeza uxhumano PC nge port esinqunyiwe SFP +, kodwa imodeli DXS-3600-32S kakade 24 Isixhumi efanayo. Bobabili amadivayisi abe isihlalo module ukunwetshwa, ngawo uzokwazi ukuxhuma kunethiwekhi ye 10GBASE-T ubuchwepheshe.

Cisco inkampani abanakumjabulisa imishini ephelele. Nokho, inikeza isisombululo engabizi ngesimo-plug-in amamojula, isibonelo, i-Nexus futhi Catalyst. Lezi "izandiso" ingasetshenziswa ukuxhuma kunethiwekhi noma ngokusebenzisa ikhebula ithusi noma nge fibre optical.

HP Unikela Gigabit yayo ukushintshwa ukuze izidingo amabhizinisi amancane naphakathi. Omunye abameleli evelele kunazo zonke kuyinto HP 6125G / XG, okuyinto idivayisi hybrid - 1/10-Gigabit inkinobho. Kuphela 10-Gigabit inkinobho uchungechunge onobuhle ethulwa 5820. Basifundekela leli jubane ku izihlalo SFP +. Nokho, phakathi amadivayisi kungatholakala, futhi Poe-Gigabit inkinobho Industrial HP 5920 chungechunge.

Yini ukukhetha kunethiwekhi yakho ekhaya?

Uma usebenzisa ukuxhumana okungenawaya ngoba ngokuhlanganisa amadivayisi kunethiwekhi ekhaya akunakwenzeka noma engamukeleki ngenxa ongaphakeme zedatha, kungcono ukusebenzisa ukushintsha nengaphethwe. Okokuqala, ishibhile. Okwesibili, kulula ukuxhuma futhi ulungiselele, akudingi kokungenela komsebenzisi. Inketho engcono kuzoba imodeli TP-LINK TL-SG1008D. Inkinobho has 8 nezimbobo uxhumano, isebenza ngamandla Iyunithi enikeza exhunywe kwi-yokuxhuma. ukudluliswa kwedatha kuqinisekisiwe ngesivinini 1 GB / s.

ungakhetha i-optical Gigabit TRENDnet noma ASUS ukukhiqizwa inkinobho uma uthanda. Izindleko yalezi amadivaysi isezingeni sezingeni elamukelekile, nokusebenza kwabo elekhanda ngokwanele ukuhlangabezana nezidingo inethiwekhi ekhaya.