High Quality Content by WIKIPEDIA articles! A connection-oriented networking protocol is one that delivers a stream of data in the same order as it was sent, after first establishing a communication session. It may be a circuit switched connection, or a virtual circuit connection in a packet switched network. In the latter case, it identifies traffic flows by some connection identifier rather than by explicitly listing source and destination addresses. Typically, this connection identifier is a...
High Quality Content by WIKIPEDIA articles! A connection-oriented networking protocol is one that delivers a stream of data in the same order as it was sent, after first establishing a communication session. It may be a circuit switched connection, or a virtual circuit connection in a packet switched network. In the latter case, it identifies traffic flows by some connection identifier rather than by explicitly listing source and destination addresses. Typically, this connection identifier is a small integer (10 bits for Frame Relay, 24 for ATM, for example). This makes network switches substantially faster (as routing tables are just simple look-up tables, and are trivial to implement in hardware). The impact is so great, in fact, that even characteristically connectionless protocols, such as IP traffic, are being tagged with connection-oriented header prefixes (e.g., as with MPLS, or IPv6's built-in Flow ID field). Example of a connection-oriented protocol at the transport layer is the TCP protocol.
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