UDP doesn't provide reliable delivery, so you would need to implement some kind of delivery assurance in your application. UDP also has very small message (dat

UDP doesn't provide reliable delivery, so you would need to implement some kind of delivery assurance in your application. UDP also has very small message (datagram) size limits, so you would also need to implement some way to fragment and re-combine messages in your application. At this point you've built an ad-hoc re-implementation of 80% of TCP.