I have to agree with Sabastian. I think ALTO servers will be run by ISPs,
and will have high detail and accuracy for the endpoints the ISP runs. But
the detail and accuracy will drop as you get farther away from the ISP's
territory.
Example: An ALTO server run by a US-based ISP might divide North America
into 100's of PIDs, and provide very accurate cost data between them. But
that ALTO might have only 2 PIDs for all of Japan. The server might give
good cost data for North America to those two Japanese PIDs, but it's cost
data between those two Japanese PIDs would be very flakey.
An ALTO server run by a Japan-based ISP would be just the opposite: lots
of PIDs for Japan, but only a few for North America.
- Bill Roome
On 09/24/2011 14:03, "Richard Alimi" <[email protected]> wrote:
>>
>>But I doubt
>>that there would be a single ALTO server that can deliver this matrix
>>with a high level of detail.
>
>Why not? I think I would disagree with this, depending on what you
>mean by "a high level of detail". An ALTO Server does not need to
>reply based on information from within other ISPs. The semantics of
>ALTO maps and information in general is that it is from the ALTO
>service provider's perspective.
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