Digital Subscriber Line
Digital Subscriber Line (ofte forkortet DSL) er teknikker, som giver mulighed for bredbåndsopkobling til internettet over det almindelige telefonnets kabler – et enkelt snoet ledningspar.
| Lag | Lagnavn | IP bårne/relaterede (har RFC) |
|---|---|---|
| 7 | Program | HTTP, SMTP, POP3, IMAP, FTP, DNS, DHCP... |
| 6 | Præsentation | AFP... |
| 5 | Session | RPC, NetBIOS... |
| 4 | Transport | TCP, UDP, RTP... |
| 3 | Netværk | IP: (IPv4, IPv6), ICMP, IGMP, ARP... |
| 2 | Datalink | Ethernet, HDLC, V.42bis, V.42(LAPM), V.44... |
| 1 | Fysisk | V.34, V.90, ADSL, 802.11 Wi-Fi, WiMAX... |
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Eksempler på DSL-teknologier (undertiden kaldet xDSL) omfatter:
- ADSL (Asymmetric Digital Subscriber Line)
- G.lite
- G.SHDSL (ITU-T-standardiseret udgave af tidligere proprietære SDSL)
- HDSL (High Bit Rate Digital Subscriber Line)
- IDSL (ISDN Digital Subscribe Line, en data-only ISDN variant)
- ISDN (ældre end betegnelsen DSL)
- RADSL (Rate Adjusted Digital Subscriber Line)
- SDSL (Symmetric Digital Subscriber Line, en standardiseret version af HDSL)
- VDSL (Very high speed Digitial Subscriber Line)
Eksterne henvisninger
- Broadband over DSL Tutorial Arkiveret 1. oktober 2005 hos Wayback Machine
- DSL Forum, a promotional trade organization for the ADSL industry Arkiveret 17. februar 2005 hos Wayback Machine
- DSL HOWTO for Linux Arkiveret 13. april 2005 hos Wayback Machine
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