rfc9439v6.txt		rfc9439.txt
	skipping to change at line 14 ¶		skipping to change at line 14 ¶
	Category: Standards Track Y. Yang		Category: Standards Track Y. Yang
	ISSN: 2070-1721 Yale University		ISSN: 2070-1721 Yale University
	Y. Lee		Y. Lee
	Samsung		Samsung
	D. Dhody		D. Dhody
	Huawei		Huawei
	S. Randriamasy		S. Randriamasy
	Nokia Networks France		Nokia Networks France
	L. Contreras		L. Contreras
	Telefonica		Telefonica
	July 2023		August 2023
	Application-Layer Traffic Optimization (ALTO) Performance Cost Metrics		Application-Layer Traffic Optimization (ALTO) Performance Cost Metrics
	Abstract		Abstract
	The cost metric is a basic concept in Application-Layer Traffic		The cost metric is a basic concept in Application-Layer Traffic
	Optimization (ALTO), and different applications may use different		Optimization (ALTO), and different applications may use different
	types of cost metrics. Since the ALTO base protocol (RFC 7285)		types of cost metrics. Since the ALTO base protocol (RFC 7285)
	defines only a single cost metric (namely, the generic "routingcost"		defines only a single cost metric (namely, the generic "routingcost"
	metric), if an application wants to issue a cost map or an endpoint		metric), if an application wants to issue a cost map or an endpoint
	skipping to change at line 1640 ¶		skipping to change at line 1640 ¶
	Events (SSE)", RFC 8895, DOI 10.17487/RFC8895, November		Events (SSE)", RFC 8895, DOI 10.17487/RFC8895, November
	2020, <https://www.rfc-editor.org/info/rfc8895>.		2020, <https://www.rfc-editor.org/info/rfc8895>.
	[RFC9110] Fielding, R., Ed., Nottingham, M., Ed., and J. Reschke,		[RFC9110] Fielding, R., Ed., Nottingham, M., Ed., and J. Reschke,
	Ed., "HTTP Semantics", STD 97, RFC 9110,		Ed., "HTTP Semantics", STD 97, RFC 9110,
	DOI 10.17487/RFC9110, June 2022,		DOI 10.17487/RFC9110, June 2022,
	<https://www.rfc-editor.org/info/rfc9110>.		<https://www.rfc-editor.org/info/rfc9110>.
	[RFC9438] Xu, L., Ha, S., Rhee, I., Goel, V., and L. Eggert, Ed.,		[RFC9438] Xu, L., Ha, S., Rhee, I., Goel, V., and L. Eggert, Ed.,
	"CUBIC for Fast and Long-Distance Networks", RFC 9438,		"CUBIC for Fast and Long-Distance Networks", RFC 9438,
	DOI 10.17487/RFC9438, July 2023,		DOI 10.17487/RFC9438, August 2023,
	<https://www.rfc-editor.org/info/rfc9438>.		<https://www.rfc-editor.org/info/rfc9438>.
	9.2. Informative References		9.2. Informative References
	[FlowDirector]		[FlowDirector]
	Pujol, E., Poese, I., Zerwas, J., Smaragdakis, G., and A.		Pujol, E., Poese, I., Zerwas, J., Smaragdakis, G., and A.
	Feldmann, "Steering Hyper-Giants' Traffic at Scale", ACM		Feldmann, "Steering Hyper-Giants' Traffic at Scale", ACM
	CoNEXT '19, December 2019.		CoNEXT '19, December 2019.
	[G2] Ros-Giralt, J., Bohara, A., Yellamraju, S., Harper		[G2] Ros-Giralt, J., Bohara, A., Yellamraju, S., Harper
	skipping to change at line 1742 ¶		skipping to change at line 1742 ¶
	Y. Richard Yang		Y. Richard Yang
	Yale University		Yale University
	51 Prospect St.		51 Prospect St.
	New Haven, CT 06520		New Haven, CT 06520
	United States of America		United States of America
	Email: yry@cs.yale.edu		Email: yry@cs.yale.edu
	Young Lee		Young Lee
	Samsung		Samsung
	Email: young.lee@gmail.com		Email: younglee.tx@gmail.com
	Dhruv Dhody		Dhruv Dhody
	Huawei		Huawei
	India		India
	Email: dhruv.ietf@gmail.com		Email: dhruv.ietf@gmail.com
	Sabine Randriamasy		Sabine Randriamasy
	Nokia Networks France		Nokia Networks France
	France		France
	Email: sabine.randriamasy@nokia-bell-labs.com		Email: sabine.randriamasy@nokia-bell-labs.com
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