A new Request for Comments is now available in online RFC libraries.
RFC 7285
Title: Application-Layer Traffic Optimization (ALTO) Protocol
Author: R. Alimi, Ed.,
R. Penno, Ed.,
Y. Yang, Ed.,
S. Kiesel,
S. Previdi,
W. Roome,
S. Shalunov,
R. Woundy
Status: Standards Track
Stream: IETF
Date: September 2014
Mailbox: ralimi@google.com,
repenno@cisco.com,
yry@cs.yale.edu,
ietf-alto@skiesel.de,
sprevidi@cisco.com,
w.roome@alcatel-lucent.com,
shalunov@shlang.com,
Richard_Woundy@cable.comcast.com
Pages: 91
Characters: 194499
Updates/Obsoletes/SeeAlso: None
I-D Tag: draft-ietf-alto-protocol-27.txt
URL: https://www.rfc-editor.org/rfc/rfc7285.txt
Applications using the Internet already have access to some topology
information of Internet Service Provider (ISP) networks. For
example, views to Internet routing tables at Looking Glass servers
are available and can be practically downloaded to many network
application clients. What is missing is knowledge of the underlying
network topologies from the point of view of ISPs. In other words,
what an ISP prefers in terms of traffic optimization -- and a way to
distribute it.
The Application-Layer Traffic Optimization (ALTO) services defined in
this document provide network information (e.g., basic network
location structure and preferences of network paths) with the goal of
modifying network resource consumption patterns while maintaining or
improving application performance. The basic information of ALTO is
based on abstract maps of a network. These maps provide a simplified
view, yet enough information about a network for applications to
effectively utilize them. Additional services are built on top of
the maps.
This document describes a protocol implementing the ALTO services.
Although the ALTO services would primarily be provided by ISPs, other
entities, such as content service providers, could also provide ALTO
services. Applications that could use the ALTO services are those
that have a choice to which end points to connect. Examples of such
applications are peer-to-peer (P2P) and content delivery networks.
This document is a product of the Application-Layer Traffic Optimization Working Group of the IETF.
This is now a Proposed Standard.
STANDARDS TRACK: This document specifies an Internet Standards Track
protocol for the Internet community, and requests discussion and suggestions
for improvements. Please refer to the current edition of the Official
Internet Protocol Standards (https://www.rfc-editor.org/standards) for the
standardization state and status of this protocol. Distribution of this
memo is unlimited.
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