Topic summary
Connection-oriented
Extracted from the Wikipedia article Connection-oriented communication.
Connection-oriented protocol services are often, but not always, reliable network services that provide acknowledgment after successful delivery and automatic repeat request functions in case of missing or corrupted data. Asynchronous Transfer Mode (ATM), Frame Relay and Multiprotocol Label Switching (MPLS) are examples of connection-oriented unreliable protocols. Simple Mail Transfer Protocol (SMTP) is an example of a connection-oriented protocol in which, if a message is not delivered, an error report is sent to the sender, making it a reliable protocol. Because they can keep track of a conversation, connection-oriented protocols are sometimes described as stateful.