Synchronous Data Link Control (SDLC) is a computercommunicationsprotocol. The tower of a personal computer (specifically a Power Mac G5). ... The term communications is used in a number of disciplines: Communications, also known as communication studies is the academic discipline which studies communication. ... For meanings in specific fields, see protocol (computing) or protocol (cryptography). ...
It is a modified version by IBM of the HDLC protocol that became the layer 2 protocol for IBM's System Network Architecture (SNA). High-Level Data Link Control (HDLC) is a bit-oriented synchronous data link Layer 2 protocol developed by the International Organization for Standardization (ISO). ... Systems Network Architecture (SNA) is IBMs proprietary networking architecture created in 1974. ...
See also PPP, SLIP, EAP. In computing, the Point-to-Point Protocol, or PPP, is commonly used to establish a direct connection between two nodes. ... The Serial Line Internet Protocol (SLIP) is a mostly obsolete encapsulation of the Internet Protocol designed to work over serial ports and modem connections. ... EAP might be an acronym or abbreviation for: In computer security, EAP stands for the Extensible Authentication Protocol, a security protocol. ...
SDLC (SynchronousDataLinkControl) is a transmission protocol developed by IBM in the 1970s as a replacement for its binary synchronous (
While SDLC (and normal response mode) are efficient protocols for closed private networks with dedicated lines, other modes of HDLC serve X.25 and frame relay protocols that manage packets on shared-line switched networks like those used by the Internet.
SDLC is still a commonly encountered and prevalent datalinkprotocol in today's mainframe environment.
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