TCP half-open: Difference between revisions

Revision as of 21:22, 11 September 2008

Revision as of 22:34, 11 September 2008

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A TCP connectionsconnection areis referred to as ''half-open'' when the station at one end of thethat TCP connection has crashed, or has otherwise removed the socket without formally notifying the other end of the TCP connection.

Due to the stateless nature of the Transmission Control Protocol, it is possible that if the endapplication ofcontrolling the connectionstill-existing onend whichof the socket still existsconnection is not expecting a response, then the socket may persist indefinitely in thisthe state, known as TCP half-open.

Note: A common misconception throughout the Internet is that the term TCP half-open applies to an partially completed TCP handshake state. A better term for this unsynchronized kind of socket state is an [[embryonic|Embryonic connection]] state.

== See also ==