Re: [alto] I-D Action: draft-ietf-alto-performance-metrics-15.txt

"Y. Richard Yang" <yry@cs.yale.edu> Thu, 04 February 2021 23:47 UTC

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From: "Y. Richard Yang" <yry@cs.yale.edu>
Date: Thu, 4 Feb 2021 18:47:37 -0500
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Subject: Re: [alto] I-D Action: draft-ietf-alto-performance-metrics-15.txt
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Hi ALTOers,

This is the revised version of the document, addressing comments and issues
identified by Danny, Jensen, Kai, authors and some comments from our
wonderful chairs.

One "interesting" change is
2001:db8::1:2345:6789:abcd -> 2001:db8::1234:5678
to make sure that the ipv6 range is within the range of Table 25 of RFC
6890.

Cheers,
Richard

On Thu, Feb 4, 2021 at 6:41 PM <internet-drafts@ietf.org> wrote:

>
> A New Internet-Draft is available from the on-line Internet-Drafts
> directories.
> This draft is a work item of the Application-Layer Traffic Optimization WG
> of the IETF.
>
>         Title           : ALTO Performance Cost Metrics
>         Authors         : Qin Wu
>                           Y. Richard Yang
>                           Young Lee
>                           Dhruv Dhody
>                           Sabine Randriamasy
>                           Luis Miguel Contreras
>         Filename        : draft-ietf-alto-performance-metrics-15.txt
>         Pages           : 33
>         Date            : 2021-02-04
>
> Abstract:
>    Cost metric is a basic concept in Application-Layer Traffic
>    Optimization (ALTO), and different applications may use different
>    cost metrics.  Since the ALTO base protocol (RFC 7285) defines only a
>    single cost metric (i.e., the generic "routingcost" metric), if an
>    application wants to issue a cost map or an endpoint cost request to
>    determine the resource provider that offers better delay performance,
>    the base protocol does not define the cost metric to be used.
>
>    This document addresses the issue by introducing network performance
>    metrics, including network delay, jitter, packet loss rate, hop
>    count, and bandwidth.
>
>    There are multiple sources (e.g., estimation based on measurements or
>    service-level agreement) to derive a performance metric.  This
>    document introduces an additional "cost-context" field to the ALTO
>    "cost-type" field to convey the source of a performance metric.
>
>
>
> The IETF datatracker status page for this draft is:
> https://datatracker.ietf.org/doc/draft-ietf-alto-performance-metrics/
>
> There are also htmlized versions available at:
> https://tools.ietf.org/html/draft-ietf-alto-performance-metrics-15
>
> https://datatracker.ietf.org/doc/html/draft-ietf-alto-performance-metrics-15
>
> A diff from the previous version is available at:
> https://www.ietf.org/rfcdiff?url2=draft-ietf-alto-performance-metrics-15
>
>
> Please note that it may take a couple of minutes from the time of
> submission
> until the htmlized version and diff are available at tools.ietf.org.
>
> Internet-Drafts are also available by anonymous FTP at:
> ftp://ftp.ietf.org/internet-drafts/
>
>
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