Cisco 10000 - Manual (Page 94)

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Cisco 10000 Series Router Software Configuration Guide
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Chapter 3 Configuring Remote Access to MPLS VPN
Configuration Tasks for RA to MPLS VPN
Configuration Tasks for RA to MPLS VPN
To configure the RA to MPLS VPN feature, perform the following configuration tasks:
• Configuring the MPLS Core Network, page 3-12
• Configuring Access Protocols and Connections, page 3-16
• Configuring and Associating Virtual Private Networks, page 3-28
• Configuring RADIUS User Profiles for RADIUS-Based AAA, page 3-30
Configuring the MPLS Core Network
To configure an MPLS core network, perform the following tasks:
• Enabling Label Switching of IP Packets on Interfaces, page 3-12
• Configuring Virtual Routing and Forwarding Instances, page 3-13
• Associating VRFs, page 3-13
• Configuring Multiprotocol BGP PE to PE Routing Sessions, page 3-14
Enabling Label Switching of IP Packets on Interfaces
Enable label switching of IP packets on each PE router interface on the MPLS side of the network. The
Cisco 10000 series router MPLS network side interface is a tagged interface. The packets passing
through the interface are tagged packets.
Note Multiple interfaces require a Label Switch Router (LSR).
To enable label switching of IP packets on interfaces, enter the following command in interface
configuration mode:
Note The Cisco 10000 series router supports the PPP Terminated Aggregation (PTA) to VRF feature, which
terminates incoming PPP sessions and places them into the appropriate VRF for transport to the
customer network. Unlike the RA to MPLS VPN model, the network side interface is not a tagged
interface and there are no tagged packets. In the PTA to VRF model, the network side interface is an
IP interface with IP packets. In this case, the traffic for the different VRFs is typically separated at
Layer 2.
Command Purpose
Router(config-if)# mpls ip Enables label switching of IP packets on the interface.