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A Cost Mode Registry for the Application-Layer Traffic Optimization (ALTO) Protocol

Document Type Replaced Internet-Draft (candidate for alto WG)
Expired & archived
Authors Mohamed Boucadair , Qin Wu
Last updated 2022-03-17 (Latest revision 2022-03-04)
Replaced by RFC 9274
RFC stream Internet Engineering Task Force (IETF)
Intended RFC status (None)
Additional resources Mailing list discussion
Stream WG state Call For Adoption By WG Issued
Document shepherd Kai Gao
IESG IESG state Replaced by draft-ietf-alto-cost-mode
Consensus boilerplate Unknown
Telechat date (None)
Responsible AD (None)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


This document creates a new IANA registry for tracking cost modes supported by the Application-Layer Traffic Optimization (ALTO) protocol. Also, this document relaxes a constraint that was imposed by the ALTO specification on allowed cost mode values. This document updates RFC 7285.


Mohamed Boucadair
Qin Wu

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)