Why 1500 bytes max in ieee 802.3?

In IEEE 802.3, the maximum frame size of 1500 bytes is primarily established to ensure efficient transmission over Ethernet networks while maintaining compatibility with various protocols, particularly IP. This limit helps prevent network congestion and ensures that frames can be processed quickly by devices without overwhelming buffers. Additionally, it aligns with the Maximum Transmission Unit (MTU) of many network protocols, facilitating smooth inter-network communication.