Re: [alto] Protocol Action: 'ALTO Incremental Updates Using Server-Sent Events (SSE)' to Proposed Standard (draft-ietf-alto-incr-update-sse-22.txt)

"Y. Richard Yang" <yry@cs.yale.edu> Tue, 24 March 2020 13:51 UTC

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From: "Y. Richard Yang" <yry@cs.yale.edu>
Date: Tue, 24 Mar 2020 09:51:29 -0400
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Subject: Re: [alto] Protocol Action: 'ALTO Incremental Updates Using Server-Sent Events (SSE)' to Proposed Standard (draft-ietf-alto-incr-update-sse-22.txt)
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Dear all,

This is a good progress with impressive thorough reviews from our AD, iesg
and WG chairs; it also benefited greatly from collaboration with many
others.

Although we see that this design will be stable for a while, we are also
working on a http/2 based design to take advantage of http/2 features. Some
details will be posted soon.

Cheers,
Richard

On Tue, Mar 24, 2020 at 9:45 AM The IESG <iesg-secretary@ietf.org> wrote:

> The IESG has approved the following document:
> - 'ALTO Incremental Updates Using Server-Sent Events (SSE)'
>   (draft-ietf-alto-incr-update-sse-22.txt) as Proposed Standard
>
> This document is the product of the Application-Layer Traffic Optimization
> Working Group.
>
> The IESG contact persons are Mirja Kühlewind and Magnus Westerlund.
>
> A URL of this Internet Draft is:
> https://datatracker.ietf.org/doc/draft-ietf-alto-incr-update-sse/
>
>
>
>
>
> Technical Summary
>
> This document allows the base ALTO protocol (RFC 7785) to fetch resources
> that have changed in a more optimized manner.
>
> In base ALTO, a client must periodically re-fetch resources that have
> changed.  Some resources served by an ALTO server (network maps, for
> instance)
> may be quite large, while the changes to the resources may be fairly
> localized,
> and can be served in an optimal manner (sending diffs, for instance)
> instead
> of having the client fetch the entire updated resource.
>
> This document adds the capability of sending localized diffs in ALTO.
>
> Working Group Summary
>
> ALTO incremental updates is a well known work to the ALTO working group.
> The initial work on this started in October 2014; the working group
> adopted
> the work in May 2015 [1], after which it has gone through about 19
> revisions
> to the current version.  The work is fairly mature and the design
> tradeoffs
> in coming up with an equitable solution to the problem described above are
> well documented in the draft.
>
> Document Quality
>
> There is one known implementation of this draft, this implementation is
> related to a paper titled "Steering Hyper-Giant's Traffic at Scale",
> published in the proceedings of ACM CoNEXT 2019 [9].  This implementation
> implements the JSON merge patch feature, with the general JSON patch being
> on their roadmap [10].
>
> Personnel
>
> The document shepherd is Vijay K. Gurbani. The responsible Area Director is
> Mirja Kühlewind.
>
> --
Richard