RFC 9174

Delay-Tolerant Networking TCP Convergence-Layer Protocol Version 4, January 2022

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B. Sipos
M. Demmer
J. Ott
S. Perreault
dtn (int)

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DOI:  https://doi.org/10.17487/RFC9174

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This document describes a TCP convergence layer (TCPCL) for Delay-Tolerant Networking (DTN). This version of the TCPCL protocol resolves implementation issues in the earlier TCPCL version 3 as defined in RFC 7242 and provides updates to the Bundle Protocol (BP) contents, encodings, and convergence-layer requirements in BP version 7 (BPv7). Specifically, TCPCLv4 uses BPv7 bundles encoded by the Concise Binary Object Representation (CBOR) as its service data unit being transported and provides a reliable transport of such bundles. This TCPCL version also includes security and extensibility mechanisms.

For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 8729.

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