Ibhizinisi lobuchwepheshe obuphezulu eligxile ocwaningweni nasekuthuthukisweni kwezokuxhumana kanye nokukhiqizwa kwefiber optical.
Ulimi
Ibhizinisi lobuchwepheshe obuphezulu eligxile ocwaningweni nasekuthuthukisweni kwezokuxhumana kanye nokukhiqizwa kwefiber optical.
Ezikhungweni zedatha zanamuhla, izimfuno zomkhawulokudonsa zikhula njalo, futhi ukuhlangabezana nalezi zidingo, isivinini senethiwekhi ezikhungweni zedatha siyanda. Lokhu kunyuka kwesivinini senethiwekhi kungenxa yokuvela nokuthuthukiswa kokushintshwa kwenethiwekhi kanye nama-silicon chips ngaphakathi kwawo. Eminyakeni engu-15 edlule, sibone isivinini esikhulu senethiwekhi ezikhungweni zedatha sikhuphuka kusuka ku-1Gb ngomzuzwana kuya ku-10G, 40G, 25G, 100G, futhi manje izikhungo zedatha eziphambili kakhulu zisebenzisa amanethiwekhi we-400G. Isakhiwo esiyisisekelo salawa manethiwekhi esikhungo sedatha amaswishi enethiwekhi asetshenzisiwe. Isivinini salezi zinguquko esinquma isivinini inethiwekhi esebenza ngaso.
Ukushintsha kwenethiwekhi kuvame ukuhlukaniswa ngezimbobo nesivinini - njengoba kushiwo ngenhla, i-32-port 100Gb/s switch iyinethiwekhi enezimbobo ezingu-32, ngayinye ekwazi ukusebenza ku-100Gb/s. Ukuze iswishi isebenze, ama-transceivers adinga ukuxhunywa ezimbobeni zeswishi ukuze kuguqulwe amasiginali kagesi ekushintsheni abe amasiginali ye-coptic ekwazi ukushintshwa ngentambo ye-coptic. Isizathu sokuhlukanisa i-transceiver kusuka kuswishi ukunikeza opharetha besikhungo sedatha ukuguquguquka (nokonga izindleko) ukuze bakhethe i-transceiver efaneleke kakhulu.
Njengoba kungabonakala ku-switch yenethiwekhi ngenhla, imbobo ye-10G incane kunembobo ye-100G (kanye ne-40G) ngokubukeka. Ku-1G, 10G, kanye ne-25G, i-transceiver isebenzisa ukupakishwa kwe-SFP futhi incane ngokwakheka. Ku-40G ne-100G, i-transceiver ineziteshi ezine kuphakheji ye-QSFP. I-transceiver ye-40G ihlanganisa iziteshi ezine ze-10Gb / s ukufeza isivinini se-40Gb / s, futhi i-transceiver ye-100G ihlanganisa iziteshi ezine ze-25Gb / s.
Njengoba kungabonakala ku-switch yenethiwekhi ngenhla, imbobo ye-10G incane kunembobo ye-100G (kanye ne-40G) ngokubukeka. Ku-1G, 10G, kanye ne-25G, i-transceiver isebenzisa ukupakishwa kwe-SFP futhi incane ngokwakheka. Ku-40G ne-100G, i-transceiver ineziteshi ezine kuphakheji ye-QSFP. I-transceiver ye-40G ihlanganisa iziteshi ezine ze-10Gb / s ukufeza isivinini se-40Gb / s, futhi i-transceiver ye-100G ihlanganisa iziteshi ezine ze-25Gb / s.
Lesi sakhiwo esihlanganisiwe seziteshi ezine sinenzuzo eyengeziwe yokuvumela amadivayisi amane asebenza ngesivinini esiphansi senethiwekhi kanye nesivinini esiphezulu sokuhlanganisa ukuthi sixhunywe kumbobo yokushintsha eyodwa - okungukuthi amaseva amane asebenza ku-25G/s angaxhunywa embotsheni yokushintsha eyodwa esebenza ngo-100G/s.
Izikhungo zedatha ngokuvamile zikhetha futhi zifake amaswishi kuqala, bese zenza ikhebula ehlelekile, bese ekugcineni zixhuma ama-transceiver kunethiwekhi ngezintambo ze-fiber optic patch noma izintambo zokuhlanganisa zethusi. Nokho, kwezinye izimo, uma amaswishi enethiwekhi kanye/noma amaseva aseduze komunye nomunye, izintambo ezibonakalayo ezisebenzayo (AOCs) zingatshalwa esikhundleni sokusebenzisa izintambo zokuhlanganisa ukuze kuxhunywe ama-transceiver amabili. I-AOC ingacatshangwa njengentambo yesichibi ye-LC noma ye-MPO lapho isixhumi se-LC noma se-MPO sithathelwa indawo "isixhumi" esinomsebenzi we-transceiver. Ziya ngokuya zithandwa kakhulu ngenxa yokuthi zibiza kancane kunama-transceiver amabili kanye nentambo yesichibi, futhi lapho uxhumano lwe-optical luthathelwa indawo uxhumano lukagesi, izinkinga ezihambisana nokungcoliswa kobuso besixhumi ziyaqedwa. Izindleko zabo eziphansi zibangelwa ukusetshenziswa kwe-VCSEL optics yemodi eminingi esebenza kahle ngaphakathi kwe-transceiver.
Zivame ukusetshenziswa ezindaweni ezilandelayo esikhungweni sedatha. Eyokuqala yikhabhinethi yeseva, lapho amaseva afinyelela kwangama-40 axhunywe ekushintsheni okuphezulu kwe-rack (TOR). Iseva ngayinye inokuxhumana kwe-Ethernet okukodwa noma okubili okuxhunywe kuswishi, lapho i-AOC ingase isetshenziselwe ukuhlanganisa. Indawo yesibili evame ukusetshenziswa kakhulu ye-AOCs esikhungweni sedatha yindawo yenethiwekhi eyinhloko, engase ibekwe endaweni yomgogodla, iqabunga noma i-core switching. Kumanethiwekhi anamuhla, kulezi zindawo, kunenombolo enkulu yokushintsha okungaqondakali okuxhunywe ukudala indwangu enkulu yokushintsha - kuze kufike kuhhafu wamachweba ekushintsheni asetshenziselwa ukuxhuma kwendwangu. Lokhu kuxhumana kuvamise ukusetshenziswa kusetshenziswa ama-AOC. Kwezinye izikhungo zedatha, indwangu yokushintsha ingahlala amakhabethe amaningi noma ngisho nomugqa wonke esikhungweni sedatha. Ama-AOC angasetshenziswa futhi ekuxhumekeni kwebanga elide, ngebanga lethiyori eliphakeme lokufaka isicelo elingafika kumamitha ayi-100.
Wonke ama-AOC ngokuvamile anezakhiwo ezifanayo zokubona ezinama-VCSEL e-multimode, adlulisa ku-10Gb/s noma ku-25Gb/s. I-10Gb / s AOC inepheya yokudlulisa futhi yamukele iziteshi ngaphakathi kwe-transceiver, ihambisa i-duplex multimode fiber, kuyilapho i-40Gb / s AOC iqukethe amapheya amane okudlulisa nokwamukela amashaneli, afaka i-8 multimode fibers. I-duplex efanayo ne-8-fiber configuration iphinde isetshenziswe ku-25Gb/s naku-100Gb/s AOCs, lapho i-100Gb/s inamapheya amane eziteshi ze-25Gb/s.
Ku-400Gb/s, isimo sinzima kakhulu. Isebenzisa iziteshi ezingu-8 25Gb/s ukuze ifinyelele ku-200Gb/s, futhi isebenzisa ikhodi ye-PAM-4 ukuze iphinde kabili isivinini somugqa, ikhulise isivinini esisebenzayo ukusuka ku-200Gb/s kuya ku-400Gb/s. Uma isebenzisa ukupakishwa kwe-OSFP, isici sefomu sibuye sibe sikhulu futhi inani lemicu ye-optical likhuphuka libe ngu-16. Ngenxa yobunzima bokufaka ikhodi kanye nesivinini sesiteshi, ibanga layo lokudlulisela liphinde lehla libe ngu-30m esiphezulu.
