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IrDA physical layer; USB physical layer; EIA RS-232, EIA-422, EIA-423, RS-449, RS-485; Ethernet physical layer 10BASE-T, 10BASE2, 10BASE5, 100BASE-TX, 100BASE-FX, 1000BASE-T, 1000BASE-SX and other varieties; Varieties of 802.11 Wi-Fi physical layers; DSL; ISDN; T1 and other T-carrier links, and E1 and other E-carrier links; ITU Recommendations ...
The data link layer packages raw bits from the physical layer into frames (logical, structured packets for data). It is specified in ITU-T Rec. X.212 [ISO/IEC 8886] , ITU-T Rec. X.222 and others. This layer is responsible for transferring frames from one host to another.
In the seven-layer OSI model of computer networking, the physical layer or layer 1 is the first and lowest layer: the layer most closely associated with the physical connection between devices. The physical layer provides an electrical, mechanical, and procedural interface to the transmission medium.
The PDU is passed to layer N−1, where it is known as the service data unit (SDU). At layer N−1 the SDU is concatenated with a header, a footer, or both, producing a layer N−1 PDU. It is then passed to layer N−2. The process continues until reaching the lowermost level, from which the data is transmitted to the receiving device.
Network architecture is the design of a computer network.It is a framework for the specification of a network's physical components and their functional organization and configuration, its operational principles and procedures, as well as communication protocols used.
The Ethernet PMD sublayer is part of the Ethernet physical layer (PHY). The hierarchy is as follows: Data link layer (Layer 2) Logical link control (LLC) sublayer; Medium access control (MAC) sublayer Reconciliation sublayer (RS) – This sublayer processes PHY local/remote fault messages and handles DDR conversion; PHY layer (Layer 1)
The physical coding sublayer (PCS) is a networking protocol sublayer in the Fast Ethernet, Gigabit Ethernet, and 10 Gigabit Ethernet standards. It resides at the top of the physical layer (PHY), and provides an interface between the physical medium attachment ( PMA ) sublayer and the media-independent interface (MII).
Pages in category "Physical layer protocols" The following 42 pages are in this category, out of 42 total. This list may not reflect recent changes. 0–9.