Mavzu: Abonent kirish tarmoqlari. Pon, xdsl, 3G/4G, kabelli internet. Ma’ruzachi: ass. Fayziyev V

Mavzu: Abonent kirish tarmoqlari. Pon, xdsl, 3G/4G, kabelli internet. Ma’ruzachi: ass. Fayziyev V

Mavzu:Abonent kirish tarmoqlari. PON, xDSL, 3G/4G, kabelli internet.

Ma’ruzachi: ass. Fayziyev V

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  Abonent kirish tarmoqlari
  

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  PON (Passive Optical Network – passiv optik tarmoq)
  

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  xDSL
  

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  Kabelli internet
  

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Tayanch iboralar. Application layer, presentation layer, session layer, transport layer, Network layer, physical layer, Application Program Interface, API, FTP, Protocol Data Unit, PDU, MAC, Ethernet, Token Ring, Frame Relay, FDDI, ATM.

Abonent kirish tarmoqlari

Telekommunikatsiya tarmoqlarini ikki darajali tarmoq sifatida ta’riflash mumkin: transport va kommutatsiyalanuvchi tarmoqlar. Ham transport, ham kommutatsiyalanuvchi tarmoqlarni iyerarxik sathlar bo‘yicha ajratish mumkin. Elektr aloqa tarmoqlarida iyerarxiyaning to‘rtta sathi ajratiladi (rasmda keltirilgan). Modelning birinchi elementi – foydalanuvchi binosidagi tarmoq (Customer Premises Equipment – CPE). Ikkinchi element – abonent kirish tarmog‘i (Access Network), u tranzit (transport) tarmoqqa chiqishni ta’minlaydi. Bu tarmoq ikkita sathga ajraladi – mahalliy (Local) va shaharlararo (Long-distanse).