IEEE Standards 802.3 & 802.11
📚 IEEE 802.3 (Ethernet) IEEE 802.3 is the standard for Ethernet networks, specifying the physical and data link layer for wired communications. Physical Layer: Defines the physical medium and signaling used for Ethernet, including cabling, connectors, and signal encoding methods. Data Link Layer: Defines the MAC (Medium Access Control) sub-layer, responsible for handling how devices access the communication medium and manage data transmission. Key Features of IEEE 802.3: Ethernet Frame Format: Includes a header, data, and trailer. The header includes source and destination MAC addresses, and the trailer contains error-checking information (such as CRC). Transmission Speed: Originally 10 Mbps in 802.3, but modern versions support speeds of up to 100 Gbps or more (e.g., 10G Ethernet). Full-Duplex & Half-Duplex: Early versions supported half-duplex, where data could only flow in one direction at a time, while modern versions support full-duplex, allowing simultaneous sending and receiving. 🌐 IEEE 802.11 (Wi-Fi) IEEE 802.11 is the standard for wireless local area networks (WLANs), commonly known as Wi-Fi. It defines how devices communicate over radio frequencies. ...