[j-nsp] load balancing in Route reflector scenario

[Robert Raszuk]

Hi Keegan,

>     By default Junos and IOS-XR advertise only those best path in BGP
>     which actually are installed into forwarding. Advertising inactive
>     knob will overwrite it.
>
> Wouldn't this lead to traffic being blackholed?  If all the routes for a
> given destination are inactive would this still cause BGP to advertise a
> route for them?

Nope ... there can be other "producers" of the same route (OSPF, ISIS, 
STATIC) which will be in the RIB. If not there is always next step - 
less specific route to be used.

So there are some valid cases where you may want to attract by BGP all 
traffic, but switch it according by your own policy and not by BGP 
decision.

Cheers,
R.