[nsp] regexp question

[Arnold Nipper]

Peter,

On 06.04.2004 17:38 Peter L wrote:

> Hi
> My case is a bit special(maybe..). We are a lab at a university and our
> upstream(the university) gives us a default route which they get by the
> national university network. We are also connected to a local IX on which we
> peer with smaller/medium sized service providers. Some of these are conneced
> to larger IX:es. The "problem" is that I know that some of the networks we
> get through our peers on the local IX can be reached in a better way through
> our upstream(2-4 hops) and not through the local IX. I would like to avoid
> getting the upstream to give us a full routing table.

what you typically do is to compile a list from all the AS numbers you
get via the local IX (these can easily be done as you know the peers and
their policies). Use this as-path list to prefer the networks via the IX
over your default.


Arnold