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
Sabine Randriamasy
Y. Richard Yang
Jingxuan Jensen Zhang
Filename : draft-ietf-alto-path-vector-09.txt
Pages : 36
Date : 2019-11-03
Abstract:
This document defines an ALTO extension that allows an ALTO
information resource to provide not only preferences but also
correlations of the paths between different PIDs or endpoints. The
extended information, including aggregations of network components on
the paths and their properties, can be used to improve the robustness
and performance for applications in some new usage scenarios, such as
high-speed data transfers and traffic optimization using in-network
storage and computation.
This document reuses the mechanisms of the ALTO base protocol and the
Unified Property extension, such as Information Resource Directory
(IRD) capabilities and entity domains, to negotiate and exchange path
correlation information. Meanwhile, it uses an extended compound
message to fully represent the path correlation information, for
better server scalability and message modularity. Specifically, the
extension 1) introduces abstract network element (ANE) as an
abstraction for an aggregation of network components and encodes a
network path as a "path vector", i.e., an array of ANEs traversed
from the source to the destination, 2) encodes properties of abstract
network elements in a unified property map, and 3) encapsulates the
two types of information in a multipart message.
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-09
https://datatracker.ietf.org/doc/html/draft-ietf-alto-path-vector-09
A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-alto-path-vector-09
Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.
Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/
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