Multi-VRF CE
support
In addition to discovering MPLS core devices and traditional Customer
Edge (CE) devices,
discovers
multi-VRF CEs. These devices maintain VRF tables for the purpose of extending
the privacy and security of an MPLS L3VPN from the PE device to the branch
office.
In
A
multi-VRF CE device deployment that serves five clients, for example,
the multi-VRF CE maintains five VRF tables in order to provide five client
organizations with their own IP address space.
A multi-VRF CE
device deployment that serves five clients

The PE that is connected to the multi-VRF CE maintains five VRFs that
are related to the five VRFs that the multi-VRF CE maintains. The use of a T1
line with multiple point-to-point subinterfaces enables traffic between the
multi-VRF CE and the PE to be segmented into separate VRFs.
No MPLS label exchange, no LDP adjacency, and no labeled packet flow
occur between a multi-VRF CE and a PE. The packets flow as IP packets between
the two devices.