Re: [p2pi] Information in an ALTO protocol

For what it's worth, I think this is the right kind of information to  
convey.

On Aug 7, 2008, at 12:14 PM, Enrico Marocco wrote:

> As some people suggested, it may be useful to try to understand what
> kind of information will be provided by an ALTO service.
>
> Current version of the charter lists four pieces of information:
> + routing preferences and priority values. The network operator is
>  usually the only entity in possession of such information, but it is
>  in its interests to share at least part of it with applications, in
>  order to reduce traffic on critical links. On the other hand, if
>  following such preferences leads to better-than-random choices, it is
>  also in applications' interest to follow them;
> + AS numbers and approximate geographic locations. Such information is
>  today (partially) available and, in fact, is in some cases already
>  used for peer selection. However, since there is no standard way to
>  obtain it, it is not easy for applications to switch from an
>  information provider to another.
>
> The charter does not preclude any other kind of information entirely,
> but it sets the bar pretty high, requiring that:
>
>  When the WG considers standardizing schemas, measures or other
>  information that the ALTO service could provide, the following
>  criteria are important to ensure real feasibility.
>  - Can an ALTO service technically provide that information?
>  - Is the ALTO service willing to obtain and divulge that information?
>  - Is it information that some client will find useful?
>  - Can that client get that information without excessive privacy
>    concerns (e.g. by sending large lists of peers)?
>  - Is it information that clients cannot find easily some other way?
>
> Thoughts?
>
> -- 
> Ciao,
> Enrico
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--
Stanislav Shalunov

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