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

[adamv0025 at netconsultings.com]

> James Bensley
> Sent: Friday, October 12, 2018 7:17 AM
> 
> 
> 
> On 12 October 2018 02:14:03 BST, Tim Warnock <timoid at timoid.org> wrote:
> >> -----Original Message-----
> >> From: cisco-nsp [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf
> >Of
> >> Robert Raszuk
> >> So for educational purposes could you describe some real valid use
> >cases to
> >> apply bgp policies on routes *received* over IBGP ?
> >>
> >> Thx,
> >> Robert.
> >
> >Setting local preference?
> >
> >Rewriting next hop?
> 
> Yeah, stuff like remotely triggered black hole routing is often applied as
in
> inbound iBGP policy.
> 
In order to avoid using ingress policy on iBGP session towards RRs I'm
setting the dummy next-hop on export from the trigger VRF, but yes I had to
add the dummy next-hop onto RRs for them to have a valid next-hop and could
relay the route further.  

adam

netconsultings.com
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