Ethernetkehykseen

Ethernetkehykseen is a Finnish term that translates to "Ethernet frame" in English. It refers to the fundamental unit of data transmission in the Ethernet networking protocol. An Ethernet frame encapsulates the data payload along with control information necessary for its delivery across a local area network (LAN).

The structure of an Ethernet frame is standardized and includes several fields. These fields typically comprise a preamble, start frame delimiter, destination MAC address, source MAC address, EtherType (or length), the actual data payload, and a Frame Check Sequence (FCS). The preamble and start frame delimiter are used for synchronization between the sender and receiver. The MAC addresses identify the source and destination network interface controllers. EtherType indicates the protocol of the data within the frame, such as IP. The payload is the actual data being transmitted, and the FCS is used for error detection.

Ethernet frames are crucial for the operation of Ethernet networks, which are widely used in wired LANs. Understanding the structure and function of an Ethernet frame is essential for network engineers and anyone involved in network troubleshooting or development. The size of an Ethernet frame can vary, but there are minimum and maximum limits to ensure efficient network operation.