CHAPTER 26 MPLS-Based Virtual Private Networks
What You Will Learn
In this chapter, you will learn one type of virtual private network architecture: the MPLS-based VPN, and in particular, a Layer 2 VPN (L2VPN). We’ll also briefly look at using PPTP over DSL for remote access, another type of arrangement that is often considered a VPN.
You will learn how an L2VPN can make CE1 and CE2 appear to be connected by a single LAN, creating a virtual private LAN service (VPLS) between them. We’ll also configure a complete VPLS based on L2VPNs.
In Chapter 17 on Internet Protocol (IP) switching, we introduced the idea of Multiprotocol Label Switching (MPLS) and configured a static label-switched path (LSP). That chapter showed how the LSP could be used ...