best-effort ATM

Also known as available bit rate (ABR). In asynchronous transfer mode (ATM), a class

of traffic that does not require guarantees of network access, but rather can deal with time slot access on an as-available basis. Bursty LAN traffic and e-mail are examples of best-effort ATM traffic. ATM also defines constant bit rate (CBR) and variable bit rate (VBR) traffic classes. See also ATM, CBR, e-mail, LAN, time slot, and VBR.

• D1
• D2
• D3
• D4
• DAC
• DACS (Digital Access Cross-connect System)
• daemon
• daisy chain
• DAMA (Demand Assigned Multiple Access)
• DAMA (Demand Assigned Multiple Access)
• D-AMPS (Digital Advanced Mobile Phone Service)
• dark fiber
• DARPA (Defense Advanced Research Projects Agency)
• DARPA Internet
• DARPANET (Defense Advanced Research Projects Agency Network)
• DAS (Dual Attached Station)
• dash
• data
• Data
• database
• data circuit terminating equipment (DCTE or DCE)
• data communications equipment (DCE)
• data compression
• Data Encryption Standard (DES)
• Data Exchange Interface (DXI)