Nkibice bibiri byingenzi bigize imiyoboro ya optique igera, EPON na GPON buriwese afite ibyiza bye, guhatana, kuzuzanya, no kwigira kubandi.Ibikurikira bizabagereranya muburyo butandukanye.
Igipimo
EPON itanga kuzamuka no kumanura 1.25 Gbps, ifata umurongo wa 8b / 10b, kandi igipimo nyacyo ni 1Gbps.
GPON ishyigikira urwego rutandukanye rwibiciro, rushobora gushyigikira kuzamuka kwa asimmetricike no kugabanuka, 2.5Gbps cyangwa 1.25Gbps kumanuka, na 1.25Gbps cyangwa 622Mbps kugirango uzamuke.Igipimo cyo kuzamuka no kumanura kugenwa ukurikije ibikenewe nyabyo, kandi modul ihuye na optique iratoranijwe kugirango yongere igipimo cyibiciro byibikoresho bya optique.
Ikigereranyo cyo gutandukanya
Ikigereranyo cyo gutandukana ni umubare wa ONU (abakoresha ama terefone) batwarwa nicyambu cya OLT (biro nkuru).
Igipimo cya EPON gisobanura igabana rya 1:32.
Igipimo cya GPON gisobanura ibipimo bitandukanijwe bikurikira: 1:32;1:64;1: 128.
Mubyukuri, tekiniki ya sisitemu ya EPON irashobora kandi kugera kubice byinshi byo gutandukana, nka 1:64, 1: 128, kandi protocole yo kugenzura EPON irashobora gushyigikira ONU nyinshi.Ikigereranyo cyo gutandukana kigarukira cyane cyane kubikorwa byimikorere ya module ya optique, kandi igipimo kinini cyo kugabana kizatuma igiciro cya module optique kizamuka cyane.
GPON itanga amahitamo menshi, ariko inyungu yikiguzi ntabwo igaragara.Intera ntarengwa yo kohereza Intera ntarengwa ya sisitemu ya GPON ishobora gushyigikira.Iyo igipimo cyo gutandukanya optique ari 1:16, kigomba gushyigikira intera ntarengwa ya 20km;mugihe igipimo cyo gutandukanya optique ari 1:32, igomba gushyigikira intera ntarengwa ya kilometero 10.EPON ni nkiyi, ariko irangana muri rusange.
Subuziranenge
Porotokole ya Ethernet ubwayo ntabwo ifite ubushobozi bwo kuyobora QoS.Kubwibyo, kugirango ushoboze EPON gukorera abakoresha, igitekerezo cyumuyoboro wibanze waho urasabwa.VLAN ivuga ko kumenyekanisha ibanze byakiriwe bishobora guhindurwa kugirango hashyizweho urufatiro rwa QOS, ariko kubera ko VLAN ishyirwa mubikorwa nintoki, bikaba bihenze cyane.Kandi GPON ifite ubushobozi bwayo bwiza bwa QoS.
Kugereranya EPON na GPON kugereranya
Ugereranije na GPON, EPON iroroshye kandi itaziguye.Muburyo bwiza bwa Ethernet, uburyo bubiri bwa ensapsulation hamwe na ATM ya GPON ntabwo bizagira uruhare runini.
Ariko, muburyo bwo kubona imiyoboro ya serivise, EPON irakwiriye gusa muri serivisi zo kohereza amakuru, mugihe GPON ishobora gutanga serivisi eshatu-imwe.
EPON ni igisubizo cya Ethernet yose yujuje neza ibiranga, imikorere n'imikorere ya protocole ya Ethernet, mugihe GPON ikoresha imiyoboro ya optique ya optique / tekinoroji ya sisitemu ya sisitemu hamwe na protocole rusange yo gukwirakwiza Ethernet.
EPON na GPON bafite ibyiza byabo nibibi.Kubireba ibipimo ngenderwaho, GPON iruta EPON, ariko EPON ifite ibyiza mugihe nigiciro.GPON iri gufata.Dutegereje ejo hazaza h'isoko ryagutse ryagutse, ntibishobora kuba aribyo bisimbuza abandi, ariko bibana kandi byuzuzanya. Kubakiriya bafite umurongo mwinshi, serivisi nyinshi, QoS nibisabwa byumutekano, hamwe na tekinoroji ya ATM nkumuyoboro wumugongo, GPON izaba birenze.Kubiciro-byoroheje byabakiriya bafite QoS nkeya nibisabwa byumutekano, EPON yabaye iyiganje.