Ethernet ¶

Ethernet is a widely used technology in LAN networks. Usually, devices are connected to a switch/hub using Ethernet.

Ethernet is based on IEEE 802.3 standard. It uses a "Carrier sensitive multiple access with collision detection" or CSMA/CP in short, to avoid collisions 💥.

If both the switch and the machine try to send a message at the same time, then both messages are colluding, and are destroyed 🔥. To avoid that, following the CSMA/CP,

• ✅ each device listens for traffic before sending messages
• 💥 If there is a collision, each device signal that they will re-send the message after waiting a random amount of time