Connection-Oriented Protocol

What Does Connection-Oriented Protocol Mean?

A Connection-Oriented Protocol (COP) is a networking protocol used to establish a data communication session in which endpoint devices use preliminary protocols to establish end-to-end connections and then the subsequent data stream is delivered in sequential transfer mode.

Advertisements

COPs guarantee sequential data delivery but are classed as an unreliable network service because there is no process to ensure that total data received is the same as what was sent.

COPs provide circuit-switched connections or virtual circuit connections in packet-switched networks (PSN).

Techopedia Explains Connection-Oriented Protocol

COPs manage real-time traffic more efficiently than connectionless protocols. Certain COPs accommodate connection-oriented and connectionless data. Because COPs track conversations, they are considered stateful protocols.

COPs use connection identifiers to determine PSN traffic flow, rather than source and destination addresses.

Well-known COPs include:

  • Transmission Control Protocol
  • Connection-Oriented Ethernet
  • Asynchronous Transfer Mode
  • Frame Relay
  • Stream Control Transmission Protocol
  • Internetwork Packet Exchange/Sequenced Packet Exchange
  • Transparent Interprocess Communication
  • Datagram Congestion Control Protocol
Advertisements

Related Terms

Margaret Rouse
Technology Expert

Margaret is an award-winning technical writer and teacher known for her ability to explain complex technical subjects to a non-technical business audience. Over the past twenty years, her IT definitions have been published by Que in an encyclopedia of technology terms and cited in articles by the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine, and Discovery Magazine. She joined Techopedia in 2011. Margaret's idea of a fun day is helping IT and business professionals learn to speak each other’s highly specialized languages.