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Stream Control Transmission Protocol

Overview#

Stream Control Transmission Protocol (SCTP) is defined in RFC 4960 and is a Transport Layer protocol serving in a similar role to the popular protocols TCP and UDP

Stream Control Transmission Protocol provides some of the same service features of both UDP and TCP as it is message-oriented like UDP and ensures reliable, in-sequence transport of messages with congestion control like TCP Stream Control Transmission Protocol differs from these in providing multi-homing and redundant paths to increase resilience and reliability.

In the absence of native SCTP support in Operating Systems it is possible to tunnel Stream Control Transmission Protocol over UDP, as well as mapping TCP API calls to SCTP ones.

The reference implementation was released as part of FreeBSD version 7. It has subsequently been widely ported.

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