ethernet mac

An **Ethernet MAC (Media Access Control)** refers to the hardware-level component and addressing scheme used in Ethernet networks for controlling how data is transmitted and received over a physical medium. Each network interface card (NIC) has a unique **MAC address**, a 48-bit identifier used to distinguish it on a local network. The Ethernet MAC layer handles tasks such as frame creation, addressing, error checking, and regulating access to the shared transmission medium.