The third wave of IT outsourcing has reached small, medium-sized, but also large organisations, with a storm of interest via the Internet, in form of application service provision. Application service providers (ASPs) offer multiple users a subscription-based access model via the Internet or a virtual private network to centrally managed applications. The appeal of ASPs are the per-user-pricing...

As IP technologies have provided the ability to establish dynamic security associations between endpoints emerge, virtual private networks (VPNs) are going through significant growth. The number of endpoints per virtual network is growing, and the resource management is becoming increasingly hard to predict. To study these issues, we abstract the distributed endpoints into a simple undirected g...

Status of This Memo This memo provides information for the Internet community. It does not specify an Internet standard of any kind. Distribution of this memo is unlimited. Abstract This document provides an Applicability Statement for the Virtual Private Network (VPN) solution described in RFC 4364 and other documents listed in the References section.

Users need high speed and low latency transmission for new applications. Since Ethernet is the dominant LAN technology, service providers wish to offer new Ethernet services as Layer 2 Virtual Private Network (L2VPN), to meet the requirements of these applications. MultiProtocol Label Switching (MPLS) is one of the most suitable technologies to deploy L3VPN and can also be used to realize L2VPN...

Due to the convergence of voice, data, and video, today’s telecom operators are facing the complexity of service and network management to offer differentiated value-added services that meet customer expectations. Without the operations support of well-developed Business Support System/Operations Support System (BSS/OSS), it is difficult to timely and effectively provide competitive services up...

Some networks require communication between an interior and exterior portion of a Virtual Private Network (VPN) or through a concatenation of such networks resulting in a nested VPN, but have sensitivities about what information is communicated across the boundary, especially while providing quality of service to communications with different precedence. This note seeks to outline the issues an...

Status of This Memo This memo provides information for the Internet community. It does not specify an Internet standard of any kind. Distribution of this memo is unlimited. Abstract This document provides an applicability statement on the use of Generalized Multiprotocol Label Switching (GMPLS) protocols and mechanisms to support Basic Mode Layer 1 Virtual Private Networks (L1VPNs). L1VPNs prov...

This document describes a framework for virtual private networks (VPN) running across IP backbones. It discusses the various different types of VPNs, their respective requirements, and proposes specific mechanisms that could be used to implement each type of VPN using existing or proposed specifications. The objective of this document is to serve as a framework for related protocol development ...

We have implemented a system for virtual private networking, with special attention to the needs of telecommuters. In particular, we used off-the-shelf hardware and open-source software to create a platform to provide IP security and other services for in-home networks. Our experience has taught us a number of things about the scalability of the FreeS/WAN IPsec system, about the widespread mis-...

Multi-Protocol Label Switching (MPLS) had been deployed by many data networking service providers、 including the next-generation mobile backhaul networks, because of its undeniable potential in terms of virtual private network (VPN) management, traffic engineering, etc. In MPLS networks, IP packets are transmitted along a Label Switched Path (LSP) established between edge nodes. To improve the ...