Inethiwekhi yendawo ejwayelekile efomini layo lamanje (isilinganiso) ekugcineni yasungulwa eminyakeni eminingi edlule, lapho ukuthuthukiswa kwayo kuma khona.
Ngakolunye uhlangothi, okuhle kakhulu yisitha sokuhle, ngakolunye uhlangothi, ukumila nakho akukuhle kakhulu. Ngaphezu kwalokho, lapho uhlolisisa, inethiwekhi yehhovisi yesimanje, evumela ukuthi wenze cishe yonke imisebenzi yehhovisi elivamile, ingakhiwa eshibhile futhi ngokushesha kunalokho okuvame ukukholelwa, futhi izakhiwo zayo zizoba lula futhi zihlasele. Ungangikholwa? Ake sizame ukukuqonda. Futhi ake siqale ngalokho okubhekwa njengokubekwa okulungile kwenethiwekhi.
Iyini i-SKS?
Noma yiluphi uhlelo lwekhebula oluhlelekile (SCS) njengengxenye yokugcina yengqalasizinda yobunjiniyela lusetshenziswa ngezigaba ezimbalwa:
- ukuklama;
- empeleni, ukufakwa kwengqalasizinda yekhebula;
- ukufakwa kwezindawo zokungena;
- ukufakwa kwamaphoyinti okushintsha;
- ukuthumela imisebenzi.
Idizayini
Noma yimuphi umsebenzi omkhulu, uma ufuna ukuwenza kahle, uqala ngokulungiselela. Ku-SCS, ukulungiselela okunjalo kuwumklamo. Kukulesi sigaba lapho kubhekwa khona ukuthi mingaki imisebenzi okumele ihlinzekwe, mangaki amachweba okudingeka abekwe, nokuthi yimaphi amandla okufanele abekwe phansi. Kulesi sigaba, kuyadingeka ukuthi uqondiswe ngamazinga (ISO/IEC 11801, EN 50173, ANSI/TIA/EIA-568-A). Eqinisweni, kulesi sigaba lapho amandla omngcele wenethiwekhi edaliwe anqunywa.
Ingqalasizinda yekhebula
Kulesi sigaba, zonke izintambo zekhebula ziyabekwa ukuze kuqinisekiswe ukudluliswa kwedatha kunethiwekhi yendawo. Amakhilomitha ekhebuli yethusi esonteke ngokulinganayo ngamapheya. Amakhulu amakhilogremu ethusi. Isidingo sokufaka amabhokisi ekhebula namathreyi - ngaphandle kwawo, ukwakhiwa kwesistimu yekhebula ehlelekile akunakwenzeka.
Amaphuzu okufinyelela
Ukuhlinzeka izindawo zokusebenza ngokufinyelela kunethiwekhi, izindawo zokufinyelela zifakiwe. Kuqondiswa umgomo wokuphindaphinda (enye yezinto ezibaluleke kakhulu ekwakhiweni kwe-SCS), amaphuzu anjalo abekwe ngamanani adlula inani elincane elidingekayo. Ngokufanisa nenethiwekhi kagesi: uma kukhona amasokhethi amaningi, kulula kakhulu ukusebenzisa isikhala lapho inethiwekhi enjalo ikhona.
Ukushintsha amaphuzu, ukuthunywa
Okulandelayo, okuyinhloko futhi, njengenketho, amaphuzu okushintsha aphakathi afakiwe. Amakhabhinethi ama-Racks/telecom abekwe, izintambo namachweba amakwa, ukuxhumana kwenziwa ngaphakathi kwezindawo zokuhlanganisa kanye naku-crossover node. Ilogi yokushintsha iyahlanganiswa, ebuye ibuyekezwe kuyo yonke impilo yesistimu yekhebula.
Uma zonke izigaba zokufaka seziqediwe, lonke uhlelo luyahlolwa. Amakhebuli axhunywe kumpahla yenethiwekhi esebenzayo, futhi inethiwekhi imisiwe. Ukuhambisana nomkhawulokudonsa wemvamisa (isivinini sokudlulisa) esimenyezelwe ku-SCS enikeziwe siyahlolwa, izindawo zokufinyelela eziklanyelwe zibizwa, futhi yonke eminye imingcele ebalulekile ekusebenzeni kwe-SCS iyahlolwa. Konke ukushiyeka okuhlonziwe kuyaqedwa. Kuphela ngemva kwalokhu, inethiwekhi idluliselwa kukhasimende.
Indawo ebonakalayo yokudlulisa ulwazi isilungile. Yini elandelayo?
Yini "ehlala" ku-SCS?
Ngaphambilini, idatha evela ezinhlobonhlobo zezinhlelo, ezivaliwe kubuchwepheshe bazo kanye nezivumelwano, zasakazwa ngengqalasizinda yekhebula yenethiwekhi yendawo. Kodwa i-zoo yobuchwepheshe sekuyisikhathi eside iphindaphindwa ngo-zero. Futhi manje endaweni yendawo kukhona, mhlawumbe, i-Ethernet kuphela esele. Ucingo, ividiyo evela kumakhamera okuqapha, ama-alamu omlilo, izinhlelo zokuphepha, idatha yemitha yezinsiza, izinhlelo zokulawula ukufinyelela kanye ne-intercom ehlakaniphile, ekugcineni - konke lokhu manje kuhamba phezulu kwe-Ethernet.
I-intercom ehlakaniphile, isistimu yokulawula ukufinyelela nedivayisi yesilawuli kude
Sithuthukisa ingqalasizinda
Futhi umbuzo uphakama: ngokuthuthukiswa okuqhubekayo kobuchwepheshe, ingabe sisadinga zonke izingxenye ze-SCS yendabuko?
Izingxenyekazi zekhompuyutha nesofthiwe ukushintsha
Isikhathi sokuvuma into esobala: ukushintsha ihadiwe ezingeni lokuxhumanisa kanye nezintambo zokuchibiyela sekudlule ukusebenza kwakho. Konke sekuyisikhathi eside kwenziwa kusetshenziswa izimbobo ze-VLAN, futhi abalawuli ukuhlunga ngezintambo ezikhabetheni noma nini lapho kuba noshintsho kusakhiwo senethiwekhi kuwukubuyisela emuva. Isikhathi sokuthatha isinyathelo esilandelayo futhi uvele uyeke iziphambano nama-patchcords.
Futhi kubonakala sengathi kuyinto encane, kodwa uma ucabanga ngakho, kuzoba nezinzuzo eziningi kulesi sinyathelo kunokushintshela kukhebula lesigaba esilandelayo. Zihlulele wena:
- Izinga lendawo yokudlulisa isignali ebonakalayo lizokhuphuka.
- Ukwethenjwa kuzokhula, ngoba sikhipha ababili kwabathathu abathintwayo bemishini ohlelweni (!).
- Ngenxa yalokho, ububanzi bokudlulisa isignali buzokhula. Akubalulekile, kodwa noma kunjalo.
- Kuzoba nesikhala ngokuzumayo emakhabetheni akho. Futhi, ngendlela, kuzoba nokuhleleka okuningi lapho. Futhi lokhu kakade konga imali.
- Izindleko zempahla ekhishiwe zincane, kodwa uma ucabangela sonke isikali sokwenza kahle, inani elihle lokonga lingaqoqwa.
- Uma kungekho ukuxhumana okuphambanayo, ungakwazi ukunqamula imigqa yeklayenti ngokuqondile ngaphansi kwe-RJ-45.
Kwenzakalani? Senze inethiwekhi yaba lula, sayenza yashibhile, futhi ngesikhathi esifanayo yancipha futhi yalawuleka. Izinzuzo eziphelele!
Noma mhlawumbe-ke, ulahle enye into? 🙂
I-Optical fiber esikhundleni socingo lwethusi
Kungani sidinga amakhilomitha ekhebula elisontekile lapho lonke inani lolwazi elihamba ngenqwaba yezintambo zethusi lingadluliselwa kalula nge-optical fiber? Masifake i-switch ye-8-port ehhovisi ene-optical uplink futhi, isibonelo, ukusekelwa kwe-PoE. Kusukela ekhabetheni kuya ehhovisi kunomgogodla owodwa we-fiber optic. Kusukela ekushintsheni kuya kumakhasimende - izintambo zethusi. Ngesikhathi esifanayo, amafoni we-IP noma amakhamera okuqapha anganikezwa amandla ngokushesha.
Ngaso leso sikhathi, akususwa kuphela inqwaba yekhebula lethusi emathreyini amahle e-lattice, kodwa futhi izimali ezidingekayo zokubeka bonke lobu bukhazikhazi, bendabuko be-SCS, zigcinwa.
Yiqiniso, uhlelo olunjalo ngandlela-thile luphikisana nombono wokubekwa “okulungile” kwemishini endaweni eyodwa, futhi ukonga kukhebula nokushintsha kwezinto eziningi ezinamachweba ethusi kuzosetshenziswa ekuthengeni amaswishi amancane nge-PoE ne-optics.
Ohlangothini lweklayenti
Ikhebula eseceleni kweklayenti lihlehlela emuva esikhathini lapho ubuchwepheshe obungenawaya babubukeka njengethoyizi kunethuluzi lokusebenza langempela. I-"wireless" yesimanje izohlinzeka kalula ngesivinini esingekho ngaphansi kwalokho okuhlinzekwa yikhebula okwamanje, kodwa izokuvumela ukuthi ukhulule ikhompuyutha yakho kuxhumo olungaguquki. Yebo, i-airwaves ayiyona irabha, futhi ngeke kwenzeke ukuyigcwalisa ngokungapheli ngeziteshi, kodwa, okokuqala, ibanga ukusuka kuklayenti ukuya endaweni yokufinyelela lingaba lincane kakhulu (izidingo zehhovisi zivumela lokhu), futhi okwesibili, lapho. kakade kukhona izinhlobo ezintsha zobuchwepheshe ezisebenzisa isibonelo, imisebe optical (isibonelo, okuthiwa Li-Fi).
Ngezidingo zobubanzi phakathi kwamamitha angu-5-10, okwanele ukuxhuma abasebenzisi abangu-2-5, indawo yokufinyelela ingasekela ngokugcwele isiteshi se-gigabit, ibize kancane kakhulu futhi ithembeke ngokuphelele. Lokhu kuzosindisa umsebenzisi wokugcina ezintanjeni.
I-Optical Switch S kanye nerutha engenantambo ye-gigabit exhunywe ngentambo ye-optical patch
Esikhathini esizayo esiseduze, ithuba elinjalo lizohlinzekwa ngamadivayisi asebenza ku-millimeter wave (802.11ad/ay), kodwa okwamanje, nakuba ngesivinini esiphansi, kodwa sisadingeka kubasebenzi basehhovisi, lokhu empeleni kungenziwa ngokusekelwe ku-802.11 ac standard.
Yiqiniso, kulesi simo indlela yokuxhuma amadivayisi afana namafoni e-IP noma amakhamera wevidiyo iyashintsha. Okokuqala, kuzodingeka banikezwe amandla ahlukene ngokusebenzisa ugesi. Okwesibili, lawa madivayisi kufanele asekele i-Wi-Fi. Kodwa-ke, akekho ovimbela ukushiya inombolo ethile yezimbobo zethusi endaweni yokufinyelela okokuqala ngqa. Okungenani ukuhambisana emuva noma izidingo ezingalindelekile.
Isibonelo, irutha engenantambo , 802.11a/b/g/n, 802.11ac Wave 2, 4xGE RJ45, 1xSFP
Isinyathelo esilandelayo sinengqondo, akunjalo?
Singagcini lapho. Ake sixhume izindawo zokungena ngentambo yefiber optic enomkhawulokudonsa, masithi, amagigabhithi ayi-10. Futhi ake sikhohlwe nge-SCS yendabuko njengephupho elibi.
Uhlelo luba lula futhi luhle.
Esikhundleni sezinqwaba zamakhabethe namathreyi agcwele ikhebula lethusi, sifaka ikhabhinethi encane lapho ukushintshwa okune-optical "inqwaba" "ihlala" kubo bonke abasebenzisi abangu-4-8, futhi sinweba i-fiber ukuze ifinyelele amaphuzu. Uma kunesidingo, ngemishini endala ungabeka amanye amachweba “ethusi” angeziwe lapha - ngeke aphazamise ingqalasizinda eyinhloko nganoma iyiphi indlela.
Source: www.habr.com