The MPLS WG Archive

[Martin Picard <mpicard@sinc.ca>]

> 
> The claim that only edge routers need to run BGP/MPLS VPN software
> is not true, as you have correctly pointed out. It's not appropriate
> to consider the required Route Reflection as an edge router function.
> 

You're right, MPLS VPN is not needed only the edge routers but also
on the RRs. But it surely is not a requirement for the backbone routers.

martin

> Cheers,
> --brijesh
> Ennovate Networks Inc.
> 
> > -----Original Message-----
> > From: owner-mpls@UU.NET [mailto:owner-mpls@UU.NET]On Behalf Of Chris
> > Flores
> > Interesting, then I have the following question. Let's say the
> transit
> > backbone consists of a 3 level hierarchy - core, distribution
> > and access.
> > BGP is configured such that the access (or edge) routers are
> > route reflector
> > clients of the distribution routers. Furthermore, the
> > distribution routers
> > are route reflector clients of the core routers. As Michel
> > Redondo Ferrero
> > has stated, MPLS VPNs originate and terminate on the access
> > or edge of the
> > network (in his scenario). Why would you turn off BGP on the
> > core routers?
> > What if MPLS breaks or fails for any reason (i.e. software
> > bug). Then, how
> > would routing occur?
> >
> > Regards.
> >
> > chris
>