Application-Layer Traffic Optimization (ALTO) Protocol (RFC7285)
Original Publication Date: 2014-Sep-01
Included in the Prior Art Database: 2014-Sep-06
Internet Society Requests For Comment (RFCs)
R. Alimi: AUTHOR [+11]
1.1. Problem Statement
Internet Engineering Task Force (IETF) R. Alimi, Ed.
Request for Comments: 7285 Google
Category: Standards Track R. Penno, Ed.
ISSN: 2070-1721 Cisco Systems, Inc.
Y. Yang, Ed.
University of Stuttgart
Cisco Systems, Inc.
Application-Layer Traffic Optimization (ALTO) Protocol
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 resou...