A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Application-Layer Traffic Optimization WG of
the IETF.
Title : ALTO Extension: Path Vector
Authors : Kai Gao
Young Lee
Nokia Bell Labs
Yang Richard Yang
Jingxuan Jensen Zhang
Filename : draft-ietf-alto-path-vector-11.txt
Pages : 44
Date : 2020-07-13
Abstract:
This document is an extension to the base Application-Layer Traffic
Optimization protocol [RFC7285]. The current ALTO Cost Services only
allow applications to obtain cost values on an end-to-end path
defined by its source and destination. The present extension
provides abstracted information on particular network components or
elements traversed by a path between its source and destination.
Examples of such abstracted components are networks, data centers or
links. This is useful for applications whose performance is impacted
by particular network components they traverse or by their
properties. Applications having the choice among several connection
paths may use this information to select paths accordingly and
improve their performance. In particular, they may infer that
several paths share common links and prevent traffic bottlenecks by
avoiding such paths. This document introduces a new cost type called
Path Vector. A Path Vector is an array of entities that each
identifies an abstracted representation of a network part and that
are called Abstract Network Element (ANE). Each ANE is defined by a
set of properties. ANE properties are conveyed by an ALTO
information resource called "Property Map", that can be packed
together with the Path Vectors in a multipart response. They can
also be obtained via a separate ALTO request to a Property Map. An
ALTO Property Map is an extension to the ALTO protocol, that is
specified in another document entitled "Unified Properties for the
ALTO Protocol" [I-D.ietf-alto-unified-props-new].
The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-alto-path-vector/
There are also htmlized versions available at:
https://tools.ietf.org/html/draft-ietf-alto-path-vector-11
https://datatracker.ietf.org/doc/html/draft-ietf-alto-path-vector-11
A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-alto-path-vector-11
Please note that it may take a couple of minutes from the time of submission
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