Unreliable Messaging

Unlike reliable messaging, unreliable messaging can't guarantee the order of sending and receiving message to be same depending on the condition of network line. For instance, if message A,B,C,D,E are sent, they all get delivered but sometimes they come in repetitively for some messages (A,B,B,C,C,D,E), lose some of messages (A,B,,D) during the transmission, or arrive in random order (A,C,B,E,D) but data inside data get preserved.

Unreliable message has such weakness but it transmits messages faster than Reliable messaging.

Reference: Protocol type of ProudNet