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Transmission Sequence Number

Abbreviated as TSN, a Transmission Sequence Number is a 32-bit sequence number used internally by SCTP (Stream Control Transmission Protocol). A TSN is attached to each unit of information within an SCTP packet (also called a chunk) containing user data to permit the receiving SCTP endpoint to acknowledge its receipt.

Also see The OSI Reference Model - Understanding Layers" in the Did You Know...? section of Webopedia.







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