Rbe To Multiprotocol Label Switching Virtual Private Network Architecture - Cisco 10000-2P2-2DC Software Configuration Manual

Chapter 1 Broadband Aggregation and Leased-Line Overview
Figure 1-9
Subscribers
CPE
In the figure, the wholesale provider uses physical or logical interfaces to separate the subscribers of
different retail providers. On the access side, the subscribers are uniquely placed in VRFs. A separate
physical or logical interface to each retail provider separates traffic for the different retail providers on
the network side.

RBE to Multiprotocol Label Switching Virtual Private Network Architecture

Figure 1-10
Figure 1-10
Subscribers
CPE
In the figure, the wholesale provider uses VPNs to separate the subscribers of different retail providers.
On the access side, the subscribers are uniquely placed in VRFs. A tag interface separates traffic for the
different retail providers on the network side. The MPLS VPN technology is used to assign tags in a VPN
aware manner.
OL-2226-23
RBE to VRF Topology
ATM
access
network
RFC 2684 bridged
format PDUs
shows an RBE to MPLS VPN model.
RBE to MPLS VPN Topology
ATM
access
network
RFC 2684 bridged
format PDUs
Wholesale
provider
VRF 1
transport
VRF 2
VRF n
Separate
logical/physical
interfaces. One per
retail provider
Wholesale
provider
VRF 1
VRF 2
VRF n
Tag interface,
logically separated
into multiple VPNs
Cisco 10000 Series Router Software Configuration Guide
Broadband Architecture Models
Retail
providers
L2
network
Retail
providers
MPLS
network
Provider 1
Provider 2
Provider n
Provider 1
Provider 2
Provider n
1-9