[c-nsp] filter downstreams on upstreams/IX

[Nikolay Shopik]

Hey,

I wounder what current BCP for filtering AS of our customers? Currently 
we don't accept announces of our downstreams via uplinks and IX. But I 
believe this is not ideal scenario, loosing connection to downstream 
means, our network loosing connection to this network and all AS behind 
them. Thus this defeat purpose having AS to re-route traffic when 
something bad happens.

I think highest[of all] bgp local preference for customers should do 
trick, do I miss something else?

Thanks