VPNs provisioned using technologies such as Frame Relay and Asynchronous Transfer Mode (ATM) virtual circuits (VC) have been available for a long time, but over the past few years IP and IP/Multiprotocol Label Switching (MPLS)-based VPNs have become more and more popular. This book focuses on describing the deployment of IP- and IP/MPLS-based VPNs.
MPLS VPN Overview - TechLibrary - Juniper Networks SRX320,SRX1500,SRX340,SRX345,SRX300,SRX550M,SRX4200,SRX4100,vSRX. MPLS VPN Topology, MPLS VPN Routing, VRF Instances, Route Distinguishers, MPLS Exceptions on SRX Understanding MPLS Layer 3 VPNs - TechLibrary - Juniper SRX320,SRX1500,SRX340,SRX345,SRX300,SRX550M,vSRX. An MPLS Layer 3 VPN operates at the Layer 3 level of the OSI model, the Network layer. The VPN is composed of a set of sites that are connected over a service provider's existing public Internet backbone. BGP/MPLS IP VPNs - NANOG Archive
Understanding MPLS VPNs, Part I | Network World
A VPN gateway/concentrator acts as the endpoint of a VPN tunnel, especially in a remote access VPN or CE-based site-to-site VPN. See Figure 1-5 later in the chapter for an illustration of the role performed by a VPN gateway/concentrator. Depending on the remote access VPN protocol in use, the VPN gateway/concentrator may, How MPLS Works – Basic Concepts • MPLS router roles may also be expressed as “P” or “PE”: • Terms which come from the description of VPN services. • P – Provider Router • A core/backbone router which is doing label switching only. • A pure P router can operate without any customer/Internet routes at all. MPLS and VPN Architectures, Volume II, begins with a brief refresher of the MPLS VPN Architecture. Part II describes advanced MPLS VPN connectivity including the integration of service provider access technologies (dial, DSL, cable, Ethernet) and a variety of routing protocols (IS-IS, EIGRP, and OSPF), arming the reader with the knowledge of how to
MPLS for Dummies - NANOG Archive
increasingly based on Multiprotocol Label Switching (MPLS) and Carrier Ethernet Virtual Private Network (VPN) services. In fact, the purpose of this white paper is to provide: n A basic understanding of MPLS and carrier-grade Ethernet VPNs and their value n Understanding the difference between Layer 2 and Layer 3 VPN services