I am trying to deploy a carriers carrier MPLS build as an interim solution to a customer.
The CE Router 3845 is to be converted to a PE and connected to the NE40 Huawei PE router in order to peer with an NE 40 Huawei P node using loopback addresses.Is this achievable?
If so what are the draw backs and if not what would be the alternative?
If the 3845 is used as a PE then you need to include in the BGP mesh that is currently deployed in your core (or BGP route reflection). This 3845 will become part of your core just as any of the other PEs (including the NE40).
VRF-lite is not applicable in this case.