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Multi-Cost Application-Layer Traffic Optimization (ALTO)

Approval announcement
Draft of message to be sent after approval:


From: The IESG <>
To: IETF-Announce <>
Cc: The IESG <>,,,,,, Jan Seedorf <>,
Subject: Protocol Action: 'Multi-Cost ALTO' to Proposed Standard (draft-ietf-alto-multi-cost-10.txt)

The IESG has approved the following document:
- 'Multi-Cost ALTO'
  (draft-ietf-alto-multi-cost-10.txt) as Proposed Standard

This document is the product of the Application-Layer Traffic
Optimization Working Group.

The IESG contact persons are Mirja K├╝hlewind and Spencer Dawkins.

A URL of this Internet Draft is:

Ballot Text

Technical Summary

   The ALTO protocol as specified in RFC 7285 allows to only query results for one single ALTO cost metric in a given ALTO request. This document specifies an extension that implements new service to allow a client to retrieve several cost metrics with one request.

Working Group Summary

  There is clear support and consensus in the ALTO WG, and it provides a very useful extension to the base ALTO protocol. A WGLC has successfully been passed, and extensive reviews were provided by various members of the WG and have all been addressed.

Document Quality

  This document does not require any expert review and has no requests to IANA.


   Jan Seedorf is the document shepherd. Mirja K├╝hlewind is the responsible Area Director.

RFC Editor Note