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Re: Is the export policy selective under valley-free?
Kai, That's correct. A network purchasing transit will advertise its internally-originated prefixes, as well as those it's learning from downstream customers, to its provider. (At least that's the theory. It's not terribly uncommon for transit purchasers to advertise a full table, or for their providers to have lax or non-existent filters, but that's neither here nor there. :) I'm not sure what "valley-free" means in this context. You might want to try the Rosetta Stone patches and make sure your copy is up to date. Drive Slow, Paul Wall http://www.linkedin.com/in/paulwall On Tue, Sep 2, 2008 at 7:45 PM, Kai Chen <kch670@xxxxxxxxxxxxxxxxxxxxx> wrote: > Just want to ask a direct question. Will an AS export all it gets from > its customers and itself to its providers? Or even under valley-free, > the BGP export policy is also selective? > > Thanks a lot, > -- > -Kai > >