Ethernet Aggregation; Mpls Provider Edge Applications - Cisco 10000-2P2-2DC Software Configuration Manual

Leased-Line Architecture Models

Ethernet Aggregation

Many enterprise customers use Ethernet technology for the "hub" site within a VPN network. "Spoke"
sites are generally connected to the service provider infrastructure with lower speed fixed circuits.
Customer connections are usually defined as 802.1Q virtual LAN (VLAN) logical interfaces under the
main Ethernet interface. The Cisco 10000 series router supports both Gigabit and Fast Ethernet
interfaces with many IP services, including QoS and ACLs.
Figure 1-14
Figure 1-14
Business
customer

MPLS Provider Edge Applications

MPLS technology has allowed providers to target small to medium-sized businesses for outsourced VPN
services. The "build once, sell many" approach of the network design provides scalability and flexibility
with respect to VPN products and services. MPLS provider edge functions and associated features and
services are offered on the Cisco 10000 series router, spanning all interfaces and encapsulations from
low-speed broadband to traditional leased-line applications to high-speed Ethernet.
Figure 1-15
Figure 1-15 MPLS Architecture
Office 1
(VPN-A)
Cisco 10000
series
Office 2
(VPN-B)
Provider edge
Office 3
(VPN-A)
Cisco 10000
Office 4
series
(VPN-B)
Access protocol
Cisco 10000 Series Router Software Configuration Guide
1-12
shows an example of Ethernet architecture.
Ethernet Architecture
Ethernet
IP
Ethernet
SONET/SDH
shows an example of MPLS architecture.
MPLS Core
IP network
MPLS VPN
Chapter 1 Broadband Aggregation and Leased-Line Overview
Gigabit
Ethernet
Cisco 10000
series
Customer
edge
Cisco 10000
series
Provider
edge
Customer
edge
IP
IP network
IP
VPN-A
VPN-B
OL-2226-23