Emkhakheni we-Broadband Networks, ubuchwepheshe obubili obuvelele sebuphenduke izimbangi eziphambili ekuhlinzekeni ngezinsizakalo ze-Intanethi ezisheshayo: EPON NE-GON. Ngenkathi bobabili benikela ukusebenza okufanayo, banomehluko ohlukile okufanele uhlole ukuqonda amakhono abo futhi unqume ukuthi iyiphi evumelana nezidingo zakho.
Isimo . Bayingxenye ye-Passive Optical Network (PON) umndeni wobuchwepheshe; Kodwa-ke, ziyehluka ekwakhiweni nasekusebenzeni.
Umehluko omkhulu phakathi kwe-EPON ne-GONOS arenger yawo yokuthola ukufinyelela (Mac). I-EPON isebenzisa i-Ethernet, ubuchwepheshe obufanayo obusetshenzisiwe kumanethiwekhi endawo (amanethiwekhi endawo) kanye namanethiwekhi abanzi (WAN). Ngokusiza i-Ethernet, e-Epin enikeza ukuhambisana nezinhlelo ezikhona ezisuselwa ku-Ethernet, okwenza kube yindlela evumelana nezimo eziningi zabasebenzisi benethiwekhi.Izithombe, ngakolunye uhlangothi, kusetshenziswa ubuchwepheshe be-asynchronous Transfer Mode (ATM) Technology, indlela endala kodwa esetshenziswayo esetshenziswayo yedatha. Inzuzo yokusebenzisa i-ATM ku-ATM Network ukuthi ingahlinzeka ngezinsizakalo zokudlala kathathu (izwi, ividiyo nedatha) kwiplatifomu ehlukanisayo, ngaleyo ndlela iqinisekise ukusetshenziswa kwe-bandwidth.
Omunye umehluko obalulekile yijubane lokuhambisa eliphansi neliphezulu. I-EPON ngokuvamile inikeza isivinini sokulinganisa, okusho ukuthi ukulanda nokulayisha okusheshayo kuyafana. Ngokuphambene, i-GNOn isebenzisa ukusetha kwe-asymmetric okuvumela isivinini esiphezulu se-DownTream kanye nejubane eliphansi le-Upstream. Lesi sici senza i-GONNS ilungele izinhlelo zokusebenza ezidinga isivinini sokulanda esisheshayo, njengokusakazwa kwevidiyo nokudluliswa kwamafayela amakhulu. Ngokuphambene nalokho, isivinini sokulinganisa sika-EPON senza ukuthi ilungele izinhlelo zokusebenza ezincike kakhulu ekudluliseleni kwedatha, njengokungqungquthela kwevidiyo kanye nezinsizakalo zefu.
Yize zombili izi-endon no-Gons zisekela ingqalasizinda efanayo yefayibha, i-OLTG (LAWI ETIME SERTOME) ne-OTT (i-Optical Network terminal) Ubuchwepheshe buhlukile. GONK angasekela inani elikhudlwana le-OLTS nge-OLT, okwenza kube ukukhetha kokuqala lapho ukukhathazeka kungukukhathazeka. I-EPON, ngakolunye uhlangothi, inebanga elinde, livumela abahlinzeki benethiwekhi ukuthi bandise ukuxhumeka ngokuqhubekayo kusuka ehhovisi eliphakathi noma iphuzu lokusatshalaliswa. Lesi sici senza i-epon ilusizo ngokuhlanganisa izindawo ezinkulu zendawo.
Ngokombono wezindleko, e-EPON ne-GON ahluke ngokwemigomo yemali yokusetha yokuqala. Ngenxa yokwakhiwa kwayo okususelwa ku-ATM, i-GPon idinga imishini ehlukahlukene futhi ebizayo. Ngokuphambene, epon isebenzisa ubuchwepheshe be-Ethernet, etholwa kabanzi futhi ayibizi kakhulu. Kodwa-ke, kufanelekile ukuthi ubuchwepheshe buthuthuka futhi abahlinzeki abaningi bangena emakethe, igebe lezindleko phakathi kwezinketho ezimbili kancane kancane.
Ngamafuphi, zombili izindonga nezinto ezinhle izinketho ezisebenzayo zokuhlinzeka ngokuxhumana ngejubane eliphezulu kakhulu. Ukuhambisana kwe-EPON nge-Ethernet kanye nejubane le-Symmetrical kwenza kube nzima ukuthola amabhizinisi nezinhlelo zokusebenza zokuhlala ezidinga ukudluliswa kwedatha okulinganiselayo. Ngakolunye uhlangothi, ukusetshenziswa kwejubane le-ATM kanye nejubane le-asymmetric kwenza kube ukukhetha kokuqala kwezicelo ezidinga isivinini sokulanda esisheshayo. Ukuqonda umehluko phakathi kwe-EPON ne-GONPON kuzosiza abasebenza kwenethiwekhi kanye nabasebenzisi bokugcina benza izinqumo ezinolwazi lapho bekhetha ubuchwepheshe obuvumelana kangcono nezidingo zabo ezithile.
Isikhathi Sokuthumela: Oct-19-2023