Yintoni i-DCI Box

Imvelaphi yenethiwekhi yeDCI

 Ekuqaleni, iziko ledatha lalilula, lineekhabhathi ezimbalwa + ii-air conditioner ezimbalwa ze-P eziphezulu kwigumbi elingacwangciswanga, emva koko amandla esixeko esinye + ii-UPS ezimbalwa, kwaye laba liziko ledatha. Nangona kunjalo, olu hlobo lweziko ledatha lincinci ngobukhulu kwaye liphantsi ekuthembekeni. I-Intanethi, ebikhula ngokungaqhelekanga ukusukela ekupheleni kweminyaka yoo-1990, nayo yonyuse imfuno yeziko ledatha. Ke ngoko, kukho ingxaki engasombululekiyo kolu hlobo lweziko ledatha: indawo engonelanga, ukunikezelwa kwamandla ombane okwaneleyo, ukungabikho kombane omninzi, kunye nesiqinisekiso se-SLA, okwenza abasebenzisi baqale ukufumana elinye iziko ledatha lokusasazwa kweshishini. Ngeli xesha, iziko ledatha elitsha kunye neziko ledatha elidala laqala ukuba neemfuno zokunxibelelana kwenethiwekhi, nto leyo eyabangela inethiwekhi yokuqala ye-DCI, oko kukuthi, i-Data Center Inter-connect, equka ubuchwepheshe kwinqanaba lenethiwekhi ebonakalayo kunye nenqanaba lenethiwekhi enengqondo.

 Inethiwekhi yokuqala ye-DCI yaqhagamshelwa ngokuthe ngqo nge-intanethi. Kamva, xa kujongwa ukhuseleko, kwasetyenziswa ukubethela, kwaqwalaselwa umgangatho wenkonzo, kwasetyenziswa imigca enikezelweyo, kwaye i-bandwidth yaqhagamshelwa ngokuthe ngqo nge-optical fiber.

Uphuhliso lwenethiwekhi yeDCI

Uphuhliso lweenethiwekhi zeDCI ukusuka kunxibelelwano lwe-intanethi, ukuya kwiilayini ezininzi ezinikezelweyo ze-M, ukuya kunxibelelwano lwangoku lwe-multi-10T WDM aluthathi xesha lide, ngokwembono, yimpendulo kuphuhliso lwe-intanethi. Ekuqaleni, abasebenzisi basebenzisa i-tunnel ye-VPN yenethiwekhi yoluntu ukuhambisa iinkonzo zabo ngokuthe ngqo ngenethiwekhi yoluntu. Le ndlela ichaphazeleka ziindawo ezahlukeneyo zenethiwekhi yoluntu (ukuxinana kwe-bandwidth yenethiwekhi yehlabathi, uthutho oluphantsi, i-line jitter, ukuseta kwakhona ikhonkco, i-firewall, njl.njl.) Ichatshazelwa yindleko kunye neendleko, ifanelekile kwi-traffic encinci, iimfuno zomgangatho we-bandwidth ephantsi, iimfuno ezingezizo zexesha langempela, kunye neemfuno zokhuseleko oluphantsi. Kamva, ishishini kwiziko ledatha latsala ingqalelo engakumbi, kwaye ishishini laqala ukwandisa ukuthunyelwa kancinci kancinci, kwaye inani leeseva landa ngokuthe ngqo. Emva kokuba inani elikhulu leenkonzo zisasazwe, ezi nkonzo zithunyelwa ngenethiwekhi zinempembelelo eyandayo kwiinkampani nakumashishini, ngoko ke iimfuno zenethiwekhi nazo ziya zisanda, zibonakala kuqala kwi-bandwidth kunye nozinzo lweekhonkco, ngoko ke abasebenzisi beziko ledatha baqala ukuqesha imigca enikezelweyo yesekethe yomqhubi, imigca enikezelweyo ye-MSTP ethwalwa kwinethiwekhi ye-SDH iqalile ukuthengiswa kakuhle ngenxa yozinzo lwayo oluphezulu, i-bandwidth enkulu, kunye nenqanaba eliphezulu lokudibanisa kwabaqhubi.

Kamva, ngenxa yophuhliso oluqhubekayo lweshishini, idatha phakathi kwamaziko edatha yaqala ukuba neemfuno zokulibaziseka kunye nokungafuneki kwakhona, ingakumbi kubathengi bezemali, ababeneemfuno eziphezulu kakhulu zokulibaziseka, ngoko ke iimfuno zemigca ezinikeleyo nazo zazinjalo.

inyukile; Okanye, abasebenzisi baqala ukufuna ubuncinci obukhulu, njenge-2.5G, i-bandwidth ye-10G enye, kwaye bafuna nokhuseleko lwe-dual-routing ukuqinisekisa ukuba i-LSA ifikelela kwi-4 ukuya kwi-5 9s.

 Nangona kunjalo, amandla ophuhliso lwe-Intanethi ayamangalisa, kwaye iindlela zoshishino ezifana nokuhanjiswa kweelog kunye nokuvumelanisa idathabheyisi ziyakhula. Ngokuqwalasela iindleko, ixesha lokuhanjiswa, umgangatho wenkonzo, njl.njl., iinkampani eziphambili (ingakumbi iinkampani ze-Intanethi ezinedatha enkulu ezifana neGoogle kunye neFB) ziqalile ukwakha iinethiwekhi zeDCI ngokuqesha iifayibha ze-optical ezingenanto ngaphandle kwabaqhubi. Ekuqaleni kokusebenzisa ifayibha ye-optical engenanto, yayikwayindlela yokusebenzisa isignali enye ngefayibha ye-optical enye. Umzekelo, isibini sefayibha ze-optical singasebenzisa imodyuli ye-10G ZR ukuhambisa iikhilomitha ezingama-80 kude. Nangona kunjalo, ingxaki yale ndlela kukuba kwelinye icala, ubungakanani bokusetyenziswa kwefayibha ye-optical buyanda ngokuthe ngqo nge-bandwidth, kwaye iindleko ziyanda; Ingxaki ende nenzima), kwaye ngeli xesha, i-bandwidth ye-10G yefayibha enye ayinakuhlangabezana neemfuno zokukhula kweshishini, ngoko ke inethiwekhi yeDCI yaqala ixesha le-WDM.

Kwixesha le-WDM, iindlela ezimbini zavela kwinethiwekhi ye-DCI, oko kukuthi, i-coarse wavelength division CWDM kunye ne-dense wavelength division DWDM. Ngokusekelwe kwiindleko, abanye abasebenzisi bokuqala basebenzise iimodyuli ze-optical ze-10G CWDM zokunxibelelana kwe-DCI besebenzisa itekhnoloji ye-CWDM. Nangona kunjalo, le nkqubo ixhasa ukuya kuthi ga kumaza ali-16 e-10G, kwaye i-EDFA ayinakukhulisa isignali kubude be-CWDM. , kwaye umgama wayo we-passive relay nawo ulinganiselwe kakhulu. Ke ngoko, njengoko imfuno yokudluliselwa kwedatha enkulu iqhubeka nokunyuka, abasebenzisi kufuneka baqale ukusebenzisa iinkqubo ze-DWDM ezinomthamo ophezulu kunye nokusebenza okuphezulu.