isr.co.ro : glossary Datagram A method of sending messages across networks by breaking up each message into packets that are sent independently (possibly by different routes) across the network and then reassembled at the destination. This is the method used in the TCP/IP (Transmission Control Protocol/Internet Protocol) standard used for the Internet, as well as for many other digital data networks. Because the datagram method allows messages to bypass bottlenecks, it offers higher throughput at the cost of the greater complexity needed to reassemble messages at the receiving end. The packets formed in this method.