Connectionless Transport Service (CLTS) is an Open System Interconnection (OSI) defined transport layerconnectionless
transport service with end-to-end addressing and error control. CLTS services have no explicit route
tothe addressed end device through the network. The datagrams
self-route themselves. With connectionless methods, there is no guarantee thatthe data packets
or datagrams will be delivered to the receiving station. In contrast to connectionless services are the connection-oriented transport services (COTS).