A Survey on Research on the Application-Layer Traffic Optimization (ALTO) Problem
draft-irtf-p2prg-alto-survey-05

[Ballot comment]
Thanks for a useful document that helped me undertsand the background to ALTO. After discussion with the IESG I am reducing my Discuss to a Comment that I hope that the IRTF will be able to address in the document.

My concern is in respect of discussion of security.

- If the survey did not look into security, then this merits
  specific mention in seciton 5 along with an invitation to
  other people to look into security.
- If the survey did look into security, but found no existing
  work, then this merits a new subsection to section 4.
 
---

One small nit...

Abstract uses "traditionally" where Introduction uses "originally".
"Traditional" jars a little given the relatively short history.

[Ballot discuss]
Thanks for a useful document that helped me undertsand the background to ALTO.

I have a small Disucss that I would like to talk through with the Security ADs.

I was disappointed that Section 5 is so thin and that the only mention of security issues is found in Section 4.2.

If there is no literature on the security considerations for ALTO then I think this should be pulled out as a major sub-section of section 4. On the other hand, if there is prior work on security, it needs to be referenced in section 5.

Technical Summary

  A significant part of the Internet traffic today is generated by
  peer-to-peer (P2P) applications used traditionally for file-sharing,
  and more recently for real-time communications and live media
  streaming.  Such applications discover a route to each other through
  an overlay network with little knowledge of the underlying network
  topology.  As a result, they may choose peers based on information
  deduced from empirical measurements, which can lead to suboptimal
  choices.  This document, a product of the P2P Research Group,
  presents a survey of existing literature on discovering and using
  network topology information for application-layer traffic
  optimization.

Working Group Summary

  This document was produced by the IRTF, not an IETF working group.
  However, it provides background information that might help inform
  IETF work by the ALTO WG.

Document Quality
  The document provides a helpful summary of research related to the
  problem of application-layer traffic optimization as described in 
  RFC 5693. The document has been reviewed by the responsible Area
  Director, who deems it of good quality.

Personnel

  The responsible Area Director is Peter Saint-Andre.

RFC Editor Note

  This document provides background information that complements but
  does not conflict with IETF work being pursued by the ALTO WG;
  therefore it is appropriate for publication by the RFC Editor in 
  the IRTF stream.

This is a request for the IESG to perform a RFC5742 review of draft-irtf-p2prg-alto-survey-04 [1] to be published an an Informational IRTF RFC. The document has been approved for publication by the IRSG. See [2] for details on prior reviews. Please copy all correspondence to the document shepherd, Stefano Previdi .

--aaron
IRTF Chair

[1] http://tools.ietf.org/id/draft-irtf-p2prg-alto-survey-04.txt
[2] http://trac.tools.ietf.org/group/irtf/trac/ticket/36