February 15, 2020
Amitraj
Bit Oriented Protocol -
->A synchronous communications protocol requiring only a single bit to communicate a command signal to the target station. Bit-oriented protocols transmit information without regard to character boundaries and thus handle all types of information images.
->Bit-oriented protocols are much less overhead-intensive, as compared to byte-oriented protocols, also known as character-oriented protocols. Bit-oriented protocols are usually full-duplex (FDX) and operate over dedicated, four-wire circuits.
->Examples include Synchronous Data Link Control (SDLC) and the High-Level Data Link Control (HDLC).
->A communications protocol that uses individual bits within the byte as control codes, such as IBM's SDLC.
Note – High-Level Data Link Control(HDLC) is a bit-oriented protocol.
Byte Oriented Protocol -
->A text-oriented synchronous communications protocol that handles only full bytes or characters of text, thereby requiring an entire byte to communicate a command signal to the target station. Control characters are embedded in the header and trailer of each data byte or block.
->As byte oriented protocols are overhead-intensive, they are used exclusively in older computer protocols at the Data Link Layer.
->Byte-oriented protocols generally are synchronous and half-duplex (HDX) in nature, and operate over dial-up, two-wire circuits.
->Bisynchronous Communications (BSC) is an example of a byte oriented protocol.
->A communications protocol that uses control codes made up of full bytes. The bisynchronous protocols used by IBM and other vendors are examples.
Note – Point-to-Point Protocol (PPP) is a byte-oriented protocol.
->A synchronous communications protocol requiring only a single bit to communicate a command signal to the target station. Bit-oriented protocols transmit information without regard to character boundaries and thus handle all types of information images.
->Bit-oriented protocols are much less overhead-intensive, as compared to byte-oriented protocols, also known as character-oriented protocols. Bit-oriented protocols are usually full-duplex (FDX) and operate over dedicated, four-wire circuits.
->Examples include Synchronous Data Link Control (SDLC) and the High-Level Data Link Control (HDLC).
->A communications protocol that uses individual bits within the byte as control codes, such as IBM's SDLC.
Note – High-Level Data Link Control(HDLC) is a bit-oriented protocol.
Byte Oriented Protocol -
->A text-oriented synchronous communications protocol that handles only full bytes or characters of text, thereby requiring an entire byte to communicate a command signal to the target station. Control characters are embedded in the header and trailer of each data byte or block.
->As byte oriented protocols are overhead-intensive, they are used exclusively in older computer protocols at the Data Link Layer.
->Byte-oriented protocols generally are synchronous and half-duplex (HDX) in nature, and operate over dial-up, two-wire circuits.
->Bisynchronous Communications (BSC) is an example of a byte oriented protocol.
->A communications protocol that uses control codes made up of full bytes. The bisynchronous protocols used by IBM and other vendors are examples.
Note – Point-to-Point Protocol (PPP) is a byte-oriented protocol.
