[c-nsp] BGP DFZ convergence time - FIB programming

[Robert Raszuk]

While we are a bit diverging from original topic and while indeed under
very careful application there could be some use cases for outbound bgp
policies even for ibgp I have never seen one to be applied inbound - which
was the point of my comment.

So for educational purposes could you describe some real valid use cases to
apply bgp policies on routes *received* over IBGP ?

Thx,
Robert.


On Fri, Oct 12, 2018, 00:13 heasley <heas at shrubbery.net> wrote:

> Thu, Oct 11, 2018 at 11:47:27PM +0200, Robert Raszuk:
> > Decent bgp implementation should not allow iBGP learned routes to be
> > subject to any bgp policy as doing so will easily result with
> inconsistent
> > routing.
>
> That is not entirely true; yes, one must be careful when applying policy
> to internal sessions, but that does meant that there are no legitimate
> applications and thus no implementation should prevent it.
>