Emkhakheni wamanethiwekhi okuxhumana, ukuthuthukiswa kwama-optical node kuyashintsha. Lawa ma-node adlala indima ebalulekile ekudlulisweni kwedatha, izimpawu zezwi kanye nevidiyo, futhi ukuthuthukiswa kwazo kuthinte kakhulu ukusebenza kahle kanye nesivinini sezinhlelo zokuxhumana zesimanje. Kule bhulogi, sizohlola ukuvela kwama-optical node kanye nendima yawo kunguquko yenethiwekhi yezokuxhumana.
Umqondo weama-optical nodesihlehlela emuva ezinsukwini zokuqala ze-fiber optic technology. Ekuqaleni, la ma-node kwakungamathuluzi alula asetshenziselwa ukuguqula amasignali okukhanya abe amasignali kagesi futhi ngokuphambene nalokho. Asebenza njengendawo yokuxhumana phakathi kwamanethiwekhi e-fiber optic kanye nengqalasizinda yezokuxhumana esekwe ngethusi. Kodwa-ke, njengoba ubuchwepheshe buthuthuka, indima yama-optical node iyaqhubeka nokukhula, futhi isiyingxenye ebaluleke kakhulu ekusetshenzisweni kwamanethiwekhi okuxhumana athuthukile.
Enye yentuthuko ebalulekile kubuchwepheshe be-optical node ukuhlanganiswa kokusebenza kwe-wavelength division multiplexing (WDM). I-WDM ivumela imifudlana eminingi yedatha ukuthi idluliselwe ngesikhathi esisodwa phezu kwefayibha eyodwa kusetshenziswa ubude begagasi obuhlukene bokukhanya. Ubuchwepheshe bukhulisa kakhulu amandla nokusebenza kahle kwamanethiwekhi optical, okuvumela ukudluliswa kwedatha enkulu ngesivinini esikhulu.
Enye intuthuko enkulu kubuchwepheshe be-optical node ukuhlanganiswa kwama-amplifiers optical. Lawa ma-amplifiers asetshenziselwa ukwandisa amandla amasignali optical, okuvumela ukuba adluliselwe ezindaweni ezikude ngaphandle kwesidingo semishini yokuvuselela isignali ebizayo futhi eyinkimbinkimbi. Ukufakwa kwama-optical amplifiers kuma-optical node kuguqule igeyimu kumanethiwekhi okuxhumana amabanga amade, okuvumela ukuphakelwa komthamo omkhulu, ukuxhumana kwesivinini esikhulu ebangeni elide.
Ukwengeza, ukuthuthukiswa kwama-node optical kuye kwaholela ekwakhiweni kwe-multiplexer optical add-drop multiplexers (ROADMs). Lawa madivayisi avumela opharetha benethiwekhi ukuthi balungise kabusha bekude izindlela zokubona ngaphakathi kwamanethiwekhi abo, okuvumela ukwabiwa okuguquguqukayo komkhawulokudonsa kanye nokwandisa ukuguquguquka kwenethiwekhi. Ama-optical node anikwe amandla yi-ROADM adlala indima ebalulekile ekusetshenzisweni kwamanethiwekhi okuxhumana ashesha, aguquguqukayo akwazi ukuhlangabezana nezidingo ezikhulayo zomkhawulokudonsa nokuxhumana.
Intuthuko yakamuva kubuchwepheshe be-optical node ihlanganisa ukuhlanganiswa kwamakhono e-software-defined networking (SDN) ahlakaniphile. Lokhu kuvumela ukulawula okumaphakathi nokuphathwa kwamanethiwekhi okukhanya, okuvumela ukucushwa okuguquguqukayo kwezinsiza zenethiwekhi kanye nobunjiniyela bethrafikhi obusebenzayo. Ama-optical nodes anikwe amandla yi-SDN avula indlela yokuthuthukiswa kwamanethiwekhi okuxhumana okuzenzela wena kanye nokuziphilisa, akwazi ukuzivumelanisa nezimo ezishintshayo zenethiwekhi ngesikhathi sangempela.
Kafushane, ukuthuthukiswa kweama-optical nodesibambe iqhaza elibalulekile ekuguqukeni kwezokuxhumana. Kusukela kumadivayisi alula okuguqula isignali kuya ezingxenyeni zenethiwekhi ezihlakaniphile eziyinkimbinkimbi, ama-optical node adlala indima ebalulekile ekuvumela ukuphakelwa kwamandla aphezulu, amanethiwekhi okuxhumana anesivinini esikhulu. Njengoba ubuchwepheshe buqhubeka buthuthuka, singabheka phambili ekuthuthukisweni okusha kubuchwepheshe be-optical node, ukushayela ukuvela okuqhubekayo kwamanethiwekhi okuxhumana kanye nokubumba ikusasa lokuxhumana.
Isikhathi sokuthumela: Mar-28-2024