[c-nsp] mpls route target export question

[Phil Mayers]

On 08/05/2010 07:48 AM, Oliver Boehmer (oboehmer) wrote:
>
> I strongly advise using a unique RD per VRF per PE. This gives you
> load-sharing and improves routing convergence when the same VRF prefix
> is exported by multiple PEs (i.e. for multi-homed CEs), even when you
> use route reflectors. Unique RDs are not required when you
> iBGP-full-mesh all PEs, but this would be short-sighted as networks grow
> and RR might be introduced later.

This is good advice.

One nit: It's impossible AFAICT to change the RD on an existing VRF 
under IOS, absent a (length) deletion/recreate cycle, or editing the 
startup-config and a reload! This makes undoing a mistake tricky :o(

I would love to be wrong on this; anyone know otherwise?