X.25

Siemensov X.25 modem

X.25[1] je ITU-T standardni skup protokola za WAN mreže koristeći telefon ili ISDN terminale. Definiše fizički sloj, podatkovnu vezu i mrežne slojeve OSI modela. Ovakve mreže su bili popularne 1980-tih i 1990-tig, i još su uvijek u upotrebi najčešće kod transakcijskih sistema.

Arhitektura

Koncept X.25 je bilo stvaranje univerzalne paketne mreže na analognih telefonskih sistemima. X.25 model je temeljen na konceptu ostvarivanja virtuelnih poziva preko mreže, sa DTE-om (data terminating equipment) koji omogućuje krajnjim tačkama vezu.

Televideo terminal 925 napravljen 1982

X.25 danas

X.25 mreže se još uvijek koriste i nakon dramatičnog opadanja gdje su ga zamijenili standardi kao što su Frame relay, ISDN, ATM, ADSL, POS, kao i Internet Protokol. X.25 mreže se još uvijek koriste dosta u siromašnijim zemljama.

Također pogledajte

Reference

  1. ^ "X.25 Structure". GeeksforGeeks (jezik: engleski). 2020-08-09. Pristupljeno 2025-12-27.

Vanjski linkovi

Content Disclaimer

Informasi ini disarikan dari Wikipedia dan disajikan kembali untuk tujuan edukasi. Konten tersedia di bawah lisensi CC BY-SA 3.0. Kami tidak bertanggung jawab atas ketidakakuratan data yang bersumber dari kontribusi publik tersebut.

  1. The information displayed on this website is sourced in part or in whole from Wikipedia and has been adapted for the purpose of restating it. We strive to provide accurate and relevant information, however:
  2. There is no guarantee of absolute accuracy. Wikipedia is an open, collaborative project that can be edited by anyone, so information is subject to change.
  3. It is not intended to constitute professional advice. The content displayed is for informational and educational purposes only. For important decisions (e.g., medical, legal, or financial), please consult a professional.
  4. Content copyright. Wikipedia is licensed under the Creative Commons Attribution-ShareAlike License (CC BY-SA). This means that content may be reused with appropriate attribution and shared under a similar license.
  5. Responsible use. Any risk arising from the use of information from this website is entirely the responsibility of the user.