Gpon ndi chiyani?

Tekinoloje ya GPON (Gigabit-Capable PON) ndiukadaulo waposachedwa kwambiri waukadaulo wa Broadband passive Optical Integrated access potengera mulingo wa ITU-TG.984.x. Ili ndi zabwino zambiri monga bandwidth yayikulu, kuchita bwino kwambiri, kuphimba kwakukulu, komanso mawonekedwe ogwiritsira ntchito olemera. Ogwiritsa ntchito ambiri amawona ngati ukadaulo wabwino kwambiri wopezera ma Broadband ndikusintha kwathunthu kwa mautumiki a netiweki. GPON idaperekedwa koyamba ndi bungwe la Full-Service Access Network (FSAN) mu September 2002. Pachifukwa ichi, ITU-T inamaliza kupanga ITU-TG.984.1 ndi G.984.2 mu March 2003. , The standardization of G.984.3 inamalizidwa mu February ndi June 2004, motero kupanga banja lokhazikika la GPON.

Kodi Epon ndi chiyani?

EPON (Ethernet Passive Optical Network), monga dzina limanenera, ndi ukadaulo wa PON wozikidwa pa Ethernet. Imatengera kapangidwe ka point-to-multipoint, passive optical fiber transmission, ndipo imapereka mautumiki osiyanasiyana pa Ethernet. Tekinoloje ya EPON imakhazikitsidwa ndi gulu la ogwira ntchito la IEEE802.3 EFM. Mu June 2004, gulu logwira ntchito la IEEE802.3EFM linatulutsa muyezo wa EPON - IEEE802.3ah (wophatikizidwa mu IEEE802.3-2005 mu 2005). Muyeso uwu, matekinoloje a Efaneti ndi PON akuphatikizidwa, teknoloji ya PON imagwiritsidwa ntchito pamtundu wa thupi, protocol ya Ethernet imagwiritsidwa ntchito muzitsulo za data, ndipo mwayi wa Ethernet umapezeka pogwiritsa ntchito PON topology. Chifukwa chake, imaphatikiza zabwino zaukadaulo wa PON ndi ukadaulo wa Efaneti: mtengo wotsika, bandwidth yayikulu, scalability yamphamvu, yogwirizana ndi Efaneti yomwe ilipo, komanso kasamalidwe kosavuta.