(HDLC) A general-purpose
data link control
protocol defined by
ISO for use on both point-to-point and
multipoint (multidrop) data links. It supports
full-duplex, transparent-mode operation. It is used
extensively in both multipoint and computer networks.
Some manufacturers and other standards bodies still use their
own acronyms, e.g.
IBM's SDLC (
Synchronous Data Link Control), the forerunner of HDLC and
ANSI's ADCCP
(Advanced Data Communications Control Procedure).
[Fred Halsall, "Data Communications, Computer Networks and
Open Systems" 4th edition, 1996, p.237, Addison-Wesley
Publishing Co. Reading, Mass., USA].