> From: [email protected]
> By knowing the topology you can see all paths in forward direction wrt
> a given destination as well as which network part would use you for
> transit (the rear mirror). You have much less by assembling hundred
> thousands of routes instead.
True - but can we expect routers to have a _complete_ map of the network, or
not? Even leaving aside technical issues such as the amount of information,
some sites may wish to 'hide' information about the internals of their
network.
So then you have to work out how to make the routing work when entities do
not have complete maps...
Noel
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