Diff: rfc9372v2.txt - rfc9372.txt

	rfc9372v2.txt	rfc9372.txt

	Internet Engineering Task Force (IETF) N. Mäurer, Ed.	Internet Engineering Task Force (IETF) N. Mäurer, Ed.
	Request for Comments: 9372 T. Gräupl, Ed.	Request for Comments: 9372 T. Gräupl, Ed.
	Category: Informational German Aerospace Center (DLR)	Category: Informational German Aerospace Center (DLR)
	ISSN: 2070-1721 C. Schmitt, Ed.	ISSN: 2070-1721 C. Schmitt, Ed.
	Research Institute CODE, UniBwM	Research Institute CODE, UniBwM

	February 2023	March 2023

	L-Band Digital Aeronautical Communications System (LDACS)	L-Band Digital Aeronautical Communications System (LDACS)

	Abstract	Abstract

	This document gives an overview of the L-band Digital Aeronautical	This document gives an overview of the L-band Digital Aeronautical
	Communications System (LDACS) architecture, which provides a secure,	Communications System (LDACS) architecture, which provides a secure,
	scalable, and spectrum-efficient terrestrial data link for civil	scalable, and spectrum-efficient terrestrial data link for civil
	aviation. LDACS is a scheduled and reliable multi-application	aviation. LDACS is a scheduled and reliable multi-application
	cellular broadband system with support for IPv6. It is part of a	cellular broadband system with support for IPv6. It is part of a

	skipping to change at line 182 ¶	skipping to change at line 182 ¶
	reasons since a previous architecture based on ISO/OSI protocols (the	reasons since a previous architecture based on ISO/OSI protocols (the
	ATN/OSI) failed in the marketplace.	ATN/OSI) failed in the marketplace.

	In the context of safety-related communications, LDACS will play a	In the context of safety-related communications, LDACS will play a
	major role in future ATM. ATN/IPS data links will provide	major role in future ATM. ATN/IPS data links will provide
	diversified terrestrial and space-based connectivity in a multilink	diversified terrestrial and space-based connectivity in a multilink
	concept called the Future Communications Infrastructure (FCI)	concept called the Future Communications Infrastructure (FCI)
	[VIR2021]. From a technical point of view, the FCI will realize	[VIR2021]. From a technical point of view, the FCI will realize
	airborne and multihomed IPv6 networks connected to a global ground	airborne and multihomed IPv6 networks connected to a global ground
	network via at least two independent communication technologies.	network via at least two independent communication technologies.

	This is considered in more detail in related IETF Internet-Drafts	This is considered in more detail in related IETF documents
	[LISP-GB-ATN] [RTGWG-ATN-BGP]. As such, ICAO has actively sought out	[LISP-GB-ATN] [RTGWG-ATN-BGP]. As such, ICAO has actively sought out
	the support of IETF to define a mobility solution for step (2), which	the support of IETF to define a mobility solution for step (2), which
	is currently the Locator/ID Separation Protocol (LISP).	is currently the Locator/ID Separation Protocol (LISP).

	In the context of the Reliable and Available Wireless (RAW) Working	In the context of the Reliable and Available Wireless (RAW) Working
	Group, developing options, such as intelligent switching between data	Group, developing options, such as intelligent switching between data
	links, for reliably delivering content from and to endpoints is	links, for reliably delivering content from and to endpoints is
	foreseen. As LDACS is part of such a concept, the work of RAW is	foreseen. As LDACS is part of such a concept, the work of RAW is
	immediately applicable. In general, with the aeronautical	immediately applicable. In general, with the aeronautical
	communications system transitioning to ATN/IPS and data being	communications system transitioning to ATN/IPS and data being

	skipping to change at line 1617 ¶	skipping to change at line 1617 ¶
	Thubert, P., Ed., Cavalcanti, D., Vilajosana, X., Schmitt,	Thubert, P., Ed., Cavalcanti, D., Vilajosana, X., Schmitt,
	C., and J. Farkas, "Reliable and Available Wireless	C., and J. Farkas, "Reliable and Available Wireless
	Technologies", Work in Progress, Internet-Draft, draft-	Technologies", Work in Progress, Internet-Draft, draft-
	ietf-raw-technologies-06, 30 November 2022,	ietf-raw-technologies-06, 30 November 2022,
	<https://datatracker.ietf.org/doc/html/draft-ietf-raw-	<https://datatracker.ietf.org/doc/html/draft-ietf-raw-
	technologies-06>.	technologies-06>.

	[RAW-USE-CASES]	[RAW-USE-CASES]
	Bernardos, C. J., Ed., Papadopoulos, G. Z., Thubert, P.,	Bernardos, C. J., Ed., Papadopoulos, G. Z., Thubert, P.,
	and F. Theoleyre, "RAW Use-Cases", Work in Progress,	and F. Theoleyre, "RAW Use-Cases", Work in Progress,

	Internet-Draft, draft-ietf-raw-use-cases-08, 22 October	Internet-Draft, draft-ietf-raw-use-cases-09, 13 March
	2022, <https://datatracker.ietf.org/doc/html/draft-ietf-	2023, <https://datatracker.ietf.org/doc/html/draft-ietf-
	raw-use-cases-08>.	raw-use-cases-08>.

	[RFC4301] Kent, S. and K. Seo, "Security Architecture for the	[RFC4301] Kent, S. and K. Seo, "Security Architecture for the
	Internet Protocol", RFC 4301, DOI 10.17487/RFC4301,	Internet Protocol", RFC 4301, DOI 10.17487/RFC4301,
	December 2005, <https://www.rfc-editor.org/info/rfc4301>.	December 2005, <https://www.rfc-editor.org/info/rfc4301>.

	[RFC4861] Narten, T., Nordmark, E., Simpson, W., and H. Soliman,	[RFC4861] Narten, T., Nordmark, E., Simpson, W., and H. Soliman,
	"Neighbor Discovery for IP version 6 (IPv6)", RFC 4861,	"Neighbor Discovery for IP version 6 (IPv6)", RFC 4861,
	DOI 10.17487/RFC4861, September 2007,	DOI 10.17487/RFC4861, September 2007,
	<https://www.rfc-editor.org/info/rfc4861>.	<https://www.rfc-editor.org/info/rfc4861>.

	skipping to change at line 1698 ¶	skipping to change at line 1698 ¶

	[RTCA2019] Radio Technical Commission for Aeronautics (RTCA),	[RTCA2019] Radio Technical Commission for Aeronautics (RTCA),
	"Internet Protocol Suite Profiles", RTCA DO-379, September	"Internet Protocol Suite Profiles", RTCA DO-379, September
	2019, <https://standards.globalspec.com/std/14224450/rtca-	2019, <https://standards.globalspec.com/std/14224450/rtca-
	do-379>.	do-379>.

	[RTGWG-ATN-BGP]	[RTGWG-ATN-BGP]
	Templin, F., Ed., Saccone, G., Dawra, G., Lindem, A., and	Templin, F., Ed., Saccone, G., Dawra, G., Lindem, A., and
	V. Moreno, "A Simple BGP-based Mobile Routing System for	V. Moreno, "A Simple BGP-based Mobile Routing System for
	the Aeronautical Telecommunications Network", Work in	the Aeronautical Telecommunications Network", Work in

	Progress, Internet-Draft, draft-ietf-rtgwg-atn-bgp-19, 6	Progress, Internet-Draft, draft-ietf-rtgwg-atn-bgp-19, 7
	November 2022, <https://datatracker.ietf.org/doc/html/	November 2022, <https://datatracker.ietf.org/doc/html/
	draft-ietf-rtgwg-atn-bgp-19>.	draft-ietf-rtgwg-atn-bgp-19>.

	[SAJ2014] Haindl, B., Meser, J., Sajatovic, M., Müller, S.,	[SAJ2014] Haindl, B., Meser, J., Sajatovic, M., Müller, S.,
	Arthaber, H., Faseth, T., and M. Zaisberger, "LDACS1	Arthaber, H., Faseth, T., and M. Zaisberger, "LDACS1
	conformance and compatibility assessment", IEEE/AIAA 33rd	conformance and compatibility assessment", IEEE/AIAA 33rd
	Digital Avionics Systems Conference (DASC), pp. 1-11,	Digital Avionics Systems Conference (DASC), pp. 1-11,
	DOI 10.1109/DASC.2014.6979447, October 2014,	DOI 10.1109/DASC.2014.6979447, October 2014,
	<https://doi.org/10.1109/DASC.2014.6979447>.	<https://doi.org/10.1109/DASC.2014.6979447>.


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