[c-nsp] route maps and bgp

Gert Doering gert at greenie.muc.de
Wed Oct 5 05:43:35 EDT 2005


Hi,

On Tue, Oct 04, 2005 at 10:53:26AM +0200, Alexander Koch wrote:
> Be careful! Whenever you have BGP customers change that
> please. A prefix-list is no good in that case, as when your
> customer is not sending you his network range you will send
> whatever is best in your routing table. Usually you then
> 'leak' that range from your transit (because it's best).
> 
> BGP communities is the only sane thing to do here.

I tend to disagree.  For a network that gets such basic things wrong, a
configuration that errs on the side of *not* announcing things is 
much better for everyone involved.

gert


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Gert Doering - Munich, Germany                             gert at greenie.muc.de
fax: +49-89-35655025                        gert at net.informatik.tu-muenchen.de


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