Summary

This chapter started with an L3VPN classification and focused attention on network-based VPNs using MPLS. You have seen what MPLS L3VPN is and how it works using MP-BGP. You have also seen how Internet services can be bundled with VPN services and the options available for Internet connectivity. The chapter explained how MPLS L3VPNs VPNs can be easily extended to multiautonomous systems and multiprovider networks and how they scale to large networks due to the fact that not all PEs need to hold all the VPN information. Lastly, you have seen how value-added services can be cost effectively built with MPLS L3VPNs using the managed central services model.

Standards and References

Guichard, Jim, Jeff Apcar, and Ivan Papelnejak. MPLS VPN Architectures. Indianapolis, IN: Cisco Press.