On Mon, 21 Mar 2005 04:55:04 +0000, Andrew McKay
wrote:

On Mon, 21 Mar 2005 01:02:31 +0000, Andy Hall
wrote:

I was wonderig that or possibly simply taking out a DNS query. If
it's to the other side of the world plus the server response, that
adds up to a lot of dead time of there are lots of relatively short
messages

That is not necessarily true. A DNS query can bounce between London
and New York or California in a shorter time than it might take for a
request to bounce from London to Manchester.

Yes of course, but very often a query needs to go to further servers
to be resolved if the particular domain is not locally cached.
This can add up to quite a lot.


It depends on a lot of things. How fast is the wire between the
locations? How busy is the connection? Is the connection optimised?

One thing that doesn't enter into the equation is "how long is this
piece of string?".

You can bounce a signal off the moon in much less than 1 second.

Mmmm... I think that's the one-way trip.......


Andrew



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..andy

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