On 05/09/07, paul at clubi.ie <paul at clubi.ie> wrote:
> Uhmm, how can I answer this without repeating what I've said on how
> obscurance of network topology (e.g. through tunneling, like IP/ATM)
> will lead to scenic routing. I've given and restated the same example
> several times over now.
> If IP can't see the shortest route, it can't take it.
So your entire problem boils down to the fact that networks are... networks.
It is the feature of pretty much any design I've ever dealt with that
things aren't neccessarily going to follow the shortest physical path
- precisely because the Layer 2 and Layer 3 protocols end up obscuring
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