Lesi sihloko sazalwa ngokuphendula lesi sihloko . Angivumelani nemibono eminingi yombhali, futhi kulesi sihloko angifuni nje ukuphikisa, kodwa futhi ngibeke eyami imibono, engizoyivikela kumazwana. Okulandelayo, ngizokhuluma ngezimiso ezimbalwa enginamathela kuzo lapho ngiklama inethiwekhi yendawo yanoma iyiphi ibhizinisi.
Umgomo wokuqala ukwethembeka. Inethiwekhi engathembekile iyohlala ibiza kakhulu ngenxa yezindleko zokuyinakekela, ukulahlekelwa isikhathi sokuphumula kanye nokulahlekelwa okuvela ekuphazamisekeni kwangaphandle. Ngokusekelwe kulesi simiso, ngihlala ngiklama inethiwekhi eyinhloko enezintambo kuphela, futhi, uma kunesidingo, enye engenazintambo (inethiwekhi yesivakashi noma inethiwekhi yamatheminali eselula). Kungani inethiwekhi engenazintambo ingathembeki kangako? Noma iyiphi inethiwekhi engenantambo inenani lezinkinga zokuphepha, ukuzinza nokuhambisana. Izingozi eziningi kakhulu zenkampani ebucayi.
Ukuthembeka kuphinde kunqume ukwakheka kwenethiwekhi. I-topology "yenkanyezi" iyindlela enhle okufanele silwele ukuyifinyelela. "Inkanyezi" inciphisa inani elidingekayo lokushintshwa, inani lemigqa ye-trunk esengozini, futhi yenza ukulungiswa kube lula. Kulula kangakanani ukubheka inkinga ekushintsheni okukodwa kunakumahhovisi amaningana ahlakazekile, njengoba umlobi wendatshana eshiwo ngenhla ephakamisa. Akuyona ize ukuthi inkulumo ethi "switch zoo" isetshenziswe.
Kodwa ngokuvamile ekusebenzeni kusadingeka ukusebenzisa i-"fractal star" noma "i-topology exubile" ye-topology. Lokhu kungenxa yebanga elilinganiselwe ukusuka kumishini yokushintsha ukuya endaweni yokusebenza. Kungakho ngikholelwa ukuthi amanethiwekhi okukhanya azogcina ethathele indawo ipheya elisontekile.
Uma kungenakwenzeka ukubeka zonke izinguquko endaweni eyodwa, ngakho-ke kungcono ukusebenzisa i-topology exubile, ngoba zonke iziqu zizothatha imizila ehlukene, okuzonciphisa amathuba okulimala ngesikhathi esisodwa eziqwini eziningana.
Ekhuluma ngeziqu. Ukushintsha okuxhunywe imigqa ye-trunk kufanele njalo kube nesiteshi sokusekelayo, khona-ke uma umugqa owodwa wonakalisiwe, ukuxhumana phakathi kwama-node kuzohlala futhi akukho uxhumano olulodwa oluzophulwa. Ungathatha isikhathi sakho futhi uqinise ucingo olulimele. Ngakho-ke, eziqwini, ngisho nasemabangeni amafushane, ungasebenzisa intambo ye-optical patch esheshayo nencane.
Umgomo wesibili wokwakha ama-scs ukucabangela nokusebenza. Kuwukuhlakanipha okungakuvumeli ukusetshenziswa kwe-optics "yesimanje" ekuxhumeni izindawo zokusebenza namanye amadivaysi enethiwekhi. Njengoba umbhali we-athikili eshiwo ngenhla aphawule kahle, yonke into manje isebenza ngekhebula elisontekile. Kuyasebenziseka kakhulu. Kodwa kusekuncane okungasebenza ngamashaneli optical ngaphandle kwamadivayisi engeziwe. Futhi idivayisi ngayinye eyengeziwe ayikona nje ukuba sengozini kodwa futhi iyizindleko ezengeziwe. Kodwa lokhu kuseyikusasa. Ngolunye usuku, lapho cishe yonke idivayisi inembobo yokubona eyakhelwe ngaphakathi, okokusebenza kuzoshintsha ngokuphelele amakhebuli amabili asontekile.
Ukuqonda nokusebenza kungabonakala enanini lamasokhethi angu-rj45 endaweni yokusebenza. Kuyasebenza ukusebenzisa amasokhethi ama-2 endaweni ngayinye. Umugqa wesibili ungasetshenziswa, isibonelo, ukuxhuma ifoni ye-analog (yedijithali), noma umane ube isipele. Lena yindlela i-SCS evame ukuklanywa ngayo izinkampani ezinkulu. Kumabhizinisi amancane naphakathi nendawo, kunengqondo kakhulu ukusebenzisa isokhethi yekhompuyutha eyodwa endaweni ngayinye yokusebenza, njengoba amafoni e-IP ngokuvamile anezimbobo ezimbili - isixhumanisi esingenayo kanye nesesibili sokuxhuma ikhompuyutha ngayo. Kumaphrinta enethiwekhi, kuhle ngaso sonke isikhathi ukuklama indawo yokusebenzela ehlukile, futhi uyithole, uma kungenzeka, ngokufanelekile kubo bonke abasebenzi abayisebenzisayo, isibonelo emaphasishi. Umuntu onekhono emkhakheni we-IT kufanele anqume ukuthi yini ebaluleke kakhulu - ukuqonda noma ukusebenza, njengoba sonke sazi kahle ukuthi abaphathi bavame ukukhetha ini.
Kukhona elinye iphuzu elibalulekile engingalifaka ekuhlakanipheni nasekusebenziseni. Lokhu kuwukungafuneki okunengqondo. Kuwusizo kakhulu ukuba nezindawo zokusebenza eziningi emahhovisi ngendlela izisebenzi ezingahlalisa ngayo, kunokuba zingaki ezisebenza lapho njengamanje. Lapha futhi, isisebenzi esinekhono onomqondo wamakhono wezezimali wenkampani futhi siyaqonda ukuthi uma kunezicelo ezintsha, kuzodingeka axazulule inkinga yokuntuleka kwezindawo okufanele anqume.
Futhi-ke, umgomo wokusebenziseka kwengqondo nokusebenziseka kuhlanganisa ukukhethwa kwemishini nezinto zokwakha. Isibonelo, uma inkampani incane futhi ingenalo ithuba lokuqasha umlawuli wenethiwekhi onekhono okwazi ukusebenza nama-switch e-L2, kunengqondo ukusebenzisa amaswishi angalawulwa, kuyilapho kufanele kube khona iziqu zokusekela, ngisho noma zingasebenzi. Asikho isidingo sokulondoloza ezintweni. Ukusebenzisa i-copper-plated twisted pair esikhundleni sethusi kusho ukuthi eminyakeni embalwa uqinisekisiwe ukubhekana nenkinga yokuxhumana okubi. Ukwenqaba ama-patch panel, izintambo ze-factory patch kanye nabahleli kusho ukuthi ngemva kwesikhathi esithile uzogcina udidekile ekhabetheni, izixhumanisi ezihlala "ziwa" kanye ne-oxidation yezixhumi. Akumele futhi weqe kwikhabhinethi yeseva. Ubukhulu obukhulu ngeke buvumele kuphela ukuthi ubeke imishini eyengeziwe, kodwa futhi uzokwenza kube lula ukuyigcina.
Ungagxumi ezintamboni zokuchibiyela. Izintambo zokuchibiyela zasefekthri ezinhle kufanele zitholakale kokubili ezindaweni zokusebenza nasekhabetheni leseva. Uma ubala isikhathi esichithwe izixhumi ze-crimping kanye nezindleko zezinto zokwakha, khona-ke ukuthenga intambo ye-factory patch kuzobe kushibhile. Ngaphezu kwalokho, ikhebula lizoba lukhuni, izixhumi zingase zibe zimbi, izixhumi zizokhipha i-oxidize ngokushesha okukhulu, ithuluzi le-crimping lingase libe libi, iso lingase lifiphale, futhi kunezizathu eziningi zokuthi ungasebenzisi intambo yesichibi esenziwe ekhaya.
Ngombono wami, uma singekho isidingo sokuthi indawo yokusebenza isebenze ngesivinini se-10G, kunengqondo kakhulu ukusebenzisa ikhebula elisontekile lesigaba 5e kunesigaba sesi-6, ngoba akushibhile nje kuphela, kodwa futhi mncane, uguquguqukayo futhi ngenxa yalokho. elula kakhulu ukufaka.
Futhi ekugcineni, isimiso sesithathu ukuhleleka. Uma inethiwekhi inkulu, kubaluleke kakhulu ukuhleleka kwayo. Amasokhethi nezimbobo zamaphaneli okuchibiyela kufanele kufakwe izinombolo. Ukufaka izinombolo kuvame ukuqala ezindaweni zokusebenza ukusuka kwesobunxele kuye kwesokudla ukusuka emnyango wegumbi. Kufanele kube nepulani yaphansi egunyaziwe enendawo kanye nezinombolo zezitolo.
Kungenxa yokuhleleka hhayi ukuhlukaniswa ngokomzimba kwamanethiwekhi lapho kusetshenziswa amaphaneli okuchibiyela. Uma umbhali wesihloko esithi "okungaphezu kwesisodwa esishiwo" ethatha ukuthi akukho lutho olukhethekile lokushintsha ekamelweni lakhe, ngakho-ke asikwazi ukukukhokhela lokhu.
Yilokho kuphela. Le migomo emithathu eyisisekelo inquma noma imaphi amaphrojekthi wami we-SCS. Kulesi sihloko angikwazanga ukuthinta konke, mhlawumbe ngiphuthelwe okuningi, futhi kungenzeka ukuthi benginephutha endaweni ethile. Ngihlale ngilungele ingxoxo eyakhayo uma nginikezwa isimemo noma ngezincwadi zomuntu siqu.
Source: www.habr.com