|(networking)||High-level Data Link Control - (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].