Eli nqaku lazalwa ngokuphendula kwinqaku . Andivumelani noninzi lweethisisi zombhali, kwaye kweli nqaku andifuni nje ukuziphikisa, kodwa ndibeke ezam iithisisi, endiya kuzithethelela ke ngoko kwizimvo. Okulandelayo, ndiza kuthetha ngemigaqo emininzi endiyithobelayo xa ndiyila inethiwekhi yendawo kulo naliphi na ishishini.
Umgaqo wokuqala kukuthembeka. Inethiwekhi engathembekanga iya kuhlala ibiza kakhulu ngenxa yeendleko zokugcinwa kwayo, ilahleko yexesha eliphantsi kunye nelahleko evela kuphazamiso lwangaphandle. Ngokusekelwe kulo mgaqo, ndihlala ndiyila inethiwekhi engundoqo kuphela, kwaye, ukuba kuyimfuneko, i-wireless eyongezelelweyo (inethiwekhi yeendwendwe okanye inethiwekhi yee-terminals zeselula). Kutheni inethiwekhi engenazingcingo ingathembekanga kangako? Nayiphi na inethiwekhi engenazingcingo inenani lokhuseleko, uzinzo kunye nemiba yokuhambelana. Imingcipheko emininzi kakhulu kwinkampani enzulu.
Ukuthembeka kwakhona kumisela ubume bothungelwano. I-topology "yeNkwenkwezi" yinto efanelekileyo ekufuneka sizabalazele kuyo. "Inkwenkwezi" inciphisa inani elifunekayo lokutshintsha, inani lemigca ye-trunk esengozini, kwaye yenza lula ukugcinwa. Kulula kangakanani ukukhangela ingxaki kwinguqu enye kunokuba kwiiofisi ezininzi ezisasazeke kwiiofisi, njengoko umbhali wenqaku elikhankanywe ngasentla ecebisa. Akuyonto ibinzana elithi "switch zoo" lisetyenziswe.
Kodwa rhoqo xa kusenziwa kuseyimfuneko ukusebenzisa nokuba yi-"fractal star" okanye "mixed topology" topology. Oku kungenxa yomgama olinganiselweyo ukusuka kwisixhobo sokutshintsha ukuya kwindawo yokusebenza. Kungenxa yoko le nto ndikholelwa ukuba iinethiwekhi zamehlo ekugqibeleni ziya kuthatha indawo yesibini esijijekileyo.
Ukuba akunakwenzeka ukubeka zonke iinguqu kwindawo enye, ngoko kulungele ukusebenzisa i-topology edibeneyo, kuba zonke ii-trunks ziya kuthatha iindlela ezahlukeneyo, eziya kunciphisa amathuba okuba nomonakalo ngaxeshanye kwii-trunks ezininzi.
Ethetha ngemiboko. Utshintsho oludityaniswe yimigca ye-trunk kufuneka luhlale lunomjelo ogciniweyo, ngoko ukuba umgca omnye wonakaliswe, uxhulumaniso phakathi kwee-nodes luya kuhlala kwaye akukho uxhumano olulodwa luya kuphulwa. Unokuthatha ixesha lakho kwaye uphinde uqinise ucingo olonakeleyo. Ke ngoko, kwiziqu, nakwimigama emifutshane, ungasebenzisa intambo ekhawulezayo kunye nencinci ye-optical patch cord.
Umgaqo wesibini wokwakha i-scs yingqiqo kunye nokusebenza. Yingqiqo engavumeli ukusetyenziswa kwee-optics "zanamhlanje" ekudibaniseni iindawo zokusebenza kunye nezinye izixhobo zenethiwekhi. Njengoko umbhali wenqaku elikhankanywe ngasentla ephawulile ngokuchanekileyo, yonke into ngoku isebenza ngentambo ephothiweyo. Isebenza kakhulu. Kodwa kuncinci okunokusebenza ngeetshaneli ezibonakalayo ngaphandle kwezixhobo ezongezelelweyo. Kwaye isixhobo ngasinye esongezelelweyo asikho kuphela ubuthathaka kodwa kunye neendleko ezongezelelweyo. Kodwa eli iselikamva. Ngenye imini, xa phantse zonke izixhobo zinezibuko ezakhelwe ngaphakathi, ii-opticals ziya kuthatha indawo ngokupheleleyo iintambo ezimbini ezijijekileyo.
Ingqiqo kunye nokusebenza kunokubonakaliswa kwinani leesokethi ze-rj45 kwindawo yokusebenza. Kuyasebenziseka ukusebenzisa iisokethi ezi-2 kwindawo nganye. Umgca wesibini ungasetyenziswa, umzekelo, ukudibanisa i-analog (yedijithali) ifowuni, okanye ube yi-backup. Yile ndlela i-SCS idla ngokuyilelwe ngayo iinkampani ezinkulu. Kumashishini amancinci naphakathi, kunengqiqo ngakumbi ukusebenzisa i-socket enye yekhompyutheni kwindawo yokusebenzela, ekubeni iifowuni ze-IP ngokubanzi zineechweba ezimbini - ikhonkco engenayo kunye neyesibini yokudibanisa ikhompyutha ngayo. Kubashicileli bomsebenzi womnatha, kuhlala kucetyiswa ukuyila indawo yokusebenza eyahlukileyo, kwaye uyifumane, ukuba kuyenzeka, ngokulungele bonke abasebenzi abayisebenzisayo, umzekelo kwiipaseji. Umntu onobuchule kwinkalo ye-IT kufuneka enze isigqibo malunga nokuba yintoni ebaluleke ngakumbi-ingqiqo okanye ukusebenza, kuba sonke sazi kakuhle ukuba ngaba abaphathi badla ngokukhetha ntoni.
Kukho enye inqaku elibalulekileyo endiya kuthi libhekiselele kwingqiqo kunye nokusebenza. Oku kukungafuneki okufanelekileyo. Kuyinto enokwenzeka ngakumbi ukuba neendawo zokusebenza ezininzi eziofisini ezinokuhlaliswa ngabasebenzi, kunokuba bangaphi abasebenza apho ngoku. Apha kwakhona, umqeshwa onobuchule onombono wemali yenkampani kwaye uyaqonda ukuba kwimeko yezicelo ezitsha, kuya kufuneka asombulule ingxaki yokunqongophala kweendawo.
Kwaye ke, umgaqo wokuqonda kunye nokusebenza kubandakanya ukukhethwa kwezixhobo kunye nezixhobo. Umzekelo, ukuba inkampani incinci kwaye ingenalo ithuba lokuqesha umlawuli wenethiwekhi onobuchule okwaziyo ukusebenza kunye nokutshintsha kwe-L2, kuyavakala ukusebenzisa iiswitshi ezingalawulwayo, ngelixa kufuneka kusekho iziqu zogcino, nokuba zingasebenzi. Akukho mfuneko yokonga kwizinto eziphathekayo. Ukusebenzisa i-copper-plated twisted pair endaweni yobhedu kuthetha ukuba kwiminyaka embalwa uqinisekisiwe ukuhlangabezana nengxaki yoxhulumaniso olubi. Ukwala iipaneli zepatch, iintambo ze-factory patch kunye nabaququzeleli kuthetha ukuba emva kwexesha elithile uya kugqiba ukudideka kwi-closet, rhoqo "ukuwa" amakhonkco kunye ne-oxidation yezixhumi. Akufunekanga utsibe kwikhabhinethi yeseva nayo. Ubungakanani obukhulu abuyi kukuvumela kuphela ukuba ubeke izixhobo ezininzi, kodwa kuya kwenza kube lula ukuyigcina.
Musa ukutsiba iintambo. Iintambo ezifanelekileyo ze-factory patch kufuneka zifumaneke zombini kwiindawo zokusebenza kunye nakwikhabhinethi yeseva. Ukuba ubala ixesha elichithwe i-crimping connectors kunye nexabiso lezinto eziphathekayo, ngoko ukuthenga intambo ye-factory patch cord kuya kuba nexabiso eliphantsi. Ukongeza, intambo iya kuba ngqingqwa, izihlanganisi zinokuba zimbi, izihlanganisi ziya kuba yioksidi ngokukhawuleza, isixhobo sokukrazula sinokuba sibi, iliso linokuba lufifi, kwaye kukho izizathu ezininzi zokungasebenzisi intambo eyenziwe ekhaya.
Ngokombono wam, ukuba akukho mfuneko yokuba indawo yokusebenza isebenze ngesantya se-10G, kunengqiqo ngakumbi ukusebenzisa i-twisted pair cable yodidi lwe-5e kunecandelo lesi-6, kuba ayincinci nje kuphela, kodwa iyancipha, iguquguqukayo kwaye ngoko ke. kulula ngakumbi ukuyifaka.
Kwaye okokugqibela, umgaqo wesithathu lucwangco. Inethiwekhi enkulu, ibaluleke ngakumbi iodolo kuyo. Iziseko kunye nezibuko zeepatch panels kufuneka zifakwe iinombolo. Ukubala amanani ngokuqhelekileyo kuqala kwiindawo zokusebenza ukusuka ekhohlo ukuya ekunene ukusuka ekungeneni kwegumbi. Kufuneka kubekho iplani yomgangatho evunyiweyo enendawo kunye namanani eendawo zokuthengisa.
Kungenxa yolungelelwaniso kwaye hayi ukwahlula ngokwasemzimbeni kothungelwano apho kusetyenziswa iipatch panels. Ukuba umbhali wenqaku elithi "ngaphezu kweyodwa elikhankanyiweyo" lithatha ukuba akukho nto ekhethekileyo yokutshintsha kwi-closet yakhe, ngoko asinakukwazi ukuhlawula oku.
Kuko konke. Le migaqo mithathu isisiseko imisela naziphi na iiprojekthi zam zeSCS. Kweli nqaku andinakuchukumisa yonke into, mhlawumbi ndiphoswe kakhulu, kwaye mhlawumbi ndiphosakele kwenye indawo. Ndisoloko ndiyilungele ingxubusho eyakhayo ukuba ndinikwe isimemo okanye ngembalelwano yobuqu.
umthombo: www.habr.com