Emkhakheni wamanethiwekhi okuxhumana, ukuthuthukiswa kwama-node optical kuyashintshashintsha. Lawa ma-node adlala indima ebalulekile ekudlulisweni kwedatha, izwi kanye nezimpawu zevidiyo, futhi ukuthuthukiswa kwawo kuthinte kakhulu ukusebenza kahle kanye nesivinini sezinhlelo zokuxhumana zanamuhla. Kule bhulogi, sizohlola ukuvela kwama-node optical kanye nendima yawo ekuguqukeni kwenethiwekhi yokuxhumana.
Umqondo weama-node opticalkusukela ezinsukwini zokuqala zobuchwepheshe be-fiber optic. Ekuqaleni, lawa ma-node ayengamadivayisi alula asetshenziswa ukuguqula amasignali optical abe amasignali kagesi kanye nokuphikisana nalokho. Asebenza njengendawo yokuxhumana phakathi kwamanethiwekhi e-fiber optic kanye nengqalasizinda yendabuko yokuxhumana esekelwe ethusi. Kodwa-ke, njengoba ubuchwepheshe buthuthuka, indima yama-node optical iyaqhubeka nokukhula, futhi abe yingxenye ebalulekile ekusetshenzisweni kwamanethiwekhi okuxhumana athuthukile.
Enye yentuthuko ebalulekile kubuchwepheshe be-optical node ukuhlanganiswa kokusebenza kwe-wavelength division multiplexing (WDM). I-WDM ivumela ukusakazwa kwedatha eminingi ukuthi kudluliselwe ngesikhathi esisodwa phezu kwefayibha eyodwa kusetshenziswa amaza okukhanya ahlukene. Lobu buchwepheshe bukhulisa kakhulu amandla kanye nokusebenza kahle kwamanethiwekhi e-optical, okwenza kube lula ukudluliswa kwedatha eningi ngesivinini esikhulu.
Enye intuthuko enkulu kubuchwepheshe be-optical node ukuhlanganiswa kwama-amplifiers e-optical. Lawa ma-amplifiers asetshenziselwa ukwandisa amandla amasignali e-optical, okuvumela ukuthi adluliselwe emabangeni amakhulu ngaphandle kwesidingo semishini yokuvuselela amasignali ebizayo futhi eyinkimbinkimbi. Ukufakwa kwama-amplifiers e-optical kuma-optical node kushintshe umdlalo wamanethiwekhi okuxhumana amabanga amade, okwenza kube lula ukuthunyelwa kokuxhumana okunamandla aphezulu, okusheshayo emabangeni amade.
Ngaphezu kwalokho, ukuthuthukiswa kwama-optical node kuholele ekuthuthukisweni kwama-optical add-drop multiplexers (ama-ROADM) aphinde alungiselelwe. Lawa madivayisi avumela opharetha benethiwekhi ukuthi bahlele kabusha izindlela ze-optical ngaphakathi kwamanethiwekhi abo, okwenza kube lula ukwabiwa kwe-bandwidth okuguquguqukayo nokwandisa ukuguquguquka kwenethiwekhi. Ama-optical node anikwe amandla yi-ROADM adlala indima ebalulekile ekusetshenzisweni kwamanethiwekhi okuxhumana asheshayo, aguquguqukayo akwazi ukuhlangabezana nezidingo ezikhulayo ze-bandwidth nokuxhumeka.
Intuthuko yakamuva kwezobuchwepheshe be-optical node ihlanganisa ukuhlanganiswa kwamakhono enethiwekhi ehlakaniphile echazwe yisoftware (SDN). Lokhu kuvumela ukulawulwa okuphakathi kanye nokuphathwa kwamanethiwekhi e-optical, okuvumela ukucushwa okuguquguqukayo kwezinsiza zenethiwekhi kanye nobunjiniyela bethrafikhi obusebenzayo. Ama-optical node anikwe amandla yi-SDN avula indlela yokuthuthukiswa kwamanethiwekhi okuxhumana azenzela ngcono futhi aziphulukisa, akwazi ukuzivumelanisa nezimo zenethiwekhi ezishintshayo ngesikhathi sangempela.
Ngamafuphi, intuthuko yeama-node opticalidlale indima ebalulekile ekuguqukeni kwamanethiwekhi okuxhumana. Kusukela kumadivayisi alula okuguqula isignali kuya ezingxenyeni zenethiwekhi ezihlakaniphile eziyinkimbinkimbi, ama-optical node adlala indima ebalulekile ekwenzeni kube lula ukuthunyelwa kwamanethiwekhi okuxhumana anejubane eliphezulu. Njengoba ubuchwepheshe buqhubeka nokuthuthuka, singabheka phambili ekuthuthukisweni okwengeziwe kobuchwepheshe be-optical node, okuqhuba ukuthuthuka okuqhubekayo kwamanethiwekhi okuxhumana futhi kulolonge ikusasa lokuxhumana.
Isikhathi sokuthunyelwe: Mashi-28-2024