@misc{rfc9174, series = {Request for Comments}, number = 9174, howpublished = {RFC 9174}, publisher = {RFC Editor}, doi = {10.17487/RFC9174}, url = {https://www.rfc-editor.org/info/rfc9174}, author = {Brian Sipos and Michael Demmer and Joerg Ott and Simon Perreault}, title = {{Delay-Tolerant Networking TCP Convergence-Layer Protocol Version 4}}, pagetotal = 62, year = 2022, month = jan, abstract = {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.}, }