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ALTO Extension: Path Vector Cost Type
draft-ietf-alto-path-vector-04

The information below is for an old version of the document.
Document Type Expired Internet-Draft (alto WG)
Authors Greg M. Bernstein , Shiwei Dawn Chen , Kai Gao , Young Lee , Wendy Roome , Michael Scharf , Y. Richard Yang , Jingxuan Zhang
Last updated 2019-01-03 (Latest revision 2018-07-02)
Replaces draft-yang-alto-path-vector
Stream Internet Engineering Task Force (IETF)
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Expired & archived
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Stream WG state WG Document
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IESG IESG state Expired
Consensus boilerplate Unknown
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at:
https://www.ietf.org/archive/id/draft-ietf-alto-path-vector-04.txt

Abstract

The Application-Layer Traffic Optimization (ALTO) protocol [RFC7285] has defined cost maps and endpoint cost maps to provide basic network information. However, they provide only scalar (numerical or ordinal) cost mode values, which are insufficient to satisfy the demands of solving more complex network optimization problems. This document introduces an extension to the base ALTO protocol, namely the path-vector extension, which allows ALTO clients to query information such as capacity regions for a given set of flows. A non-normative example called multi-flow scheduling is presented to illustrate the limitations of existing ALTO endpoint cost maps. After that, details of the extension are defined.

Authors

Greg M. Bernstein
Shiwei Dawn Chen
Kai Gao
Young Lee
Wendy Roome
Michael Scharf
Y. Richard Yang
Jingxuan Zhang

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