UDP (User Diagram Protocol)

Simpler and faster comparing to TCP (Transmission Control Protocol), however it does not provide the same level of error checking.

It simply sending a package of data from 1 device to another. It's the receiver responsibility to check if these data are received correctly.

If an error is detected, the receiver simply dispose the package.

Negative ACK

UDP you don't need to have ACK / SYNC

Packet Header