Cisco 10000-2P2-2DC Software Guide - Page 87

Chapter 3 Configuring Remote Access to MPLS VPN Access Technologies Access Technologies The Cisco 10000 series router supports routed bridge encapsulation (RBE) protocol. Point-to-point protocol (PPP) access-based permanent virtual circuits (PVCs) is supported by using the following PPP access encapsulation methods: • PPP over ATM (PPPoA) • PPP over Ethernet (PPPoE) By using these PPP access technologies, the Cisco 10000 series router can terminate up to 32,000 sessions and support many features, including: • Per session authentication based on Password Authentication Protocol (PAP) or Challenge Handshake Authentication Protocol (CHAP) • Per session accounting • Per session quality of service Note The Cisco 10000 series router can terminate up to 32,000 ATM RBE sessions. Figure 3-2 shows the topology of an integrated PPPoX (PPPoE or PPPoA) access to a multiprotocol label switching virtual private network (MPLS VPN) solution. Figure 3-2 CPE PPPoX Access to MPLS VPN Topology ATM access network Wholesale provider Cisco 10000 ESR VRF 1 VRF 2 VRF n PPPoE sessions MPLS network Retail provider Provider 1 Provider 2 Tag interface, logically separated into multiple VPNs Provider n 69865 In the figure, the service provider operates an MPLS VPN that interconnects all customer sites. The service provider's core network is an MPLS backbone with VPN service capability. The service provider provides all remote access operations to its customer. The network side interfaces are tagged interfaces, logically separated into multiple VPNs. OL-2226-23 Cisco 10000 Series Router Software Configuration Guide 3-3