SDxVPN：面向VPN服务提供商的软件定义解决方案
SDxVPN: A Software-Defined Solution for VPN Service Providers
摘要：
BGP/MPLS IP VPN和VPLS服务被认为广泛用于IP/MPLS网络中，用于连接客户的远程站点。然而，服务提供商在提供这些服务时面临许多挑战。管理复杂性、设备成本，以及最后但并非最不重要的，随着客户数量的增加而出现的可扩展性问题，只是这些问题中的一部分。软件定义网络（SDN）是可以使用网络设备的逻辑集中式控制器来解决上述问题的新兴范例。在本文中，我们提出了一种基于SDN的解决方案，称为SDxVPN，它大大降低了VPN服务定义和管理的复杂性。我们的方法消除了过去通过几种控制平面协议进行的复杂和昂贵的设备交互，使客户能够确定其服务规范，定义限制策略，甚至在没有运营商干预的情况下自动与其他客户互连。我们描述了我们的原型实现SDxVPN和它的可扩展性评估下几个有代表性的方案。结果表明，所提出的解决方案的有效性部署提供大规模的VPN服务。
英文摘要：
BGP/MPLS IP VPN and VPLS services are considered to be widely used in IP/MPLS networks for connecting customers' remote sites. However, service providers struggle with many challenges to provide these services. Management complexity, equipment costs, and last but not least, scalability issues emerging as the customers increase in number, are just some of these problems. Software-defined networking (SDN) is an emerging paradigm that can solve aforementioned issues using a logically centralized controller for network devices. In this paper, we propose a SDN-based solution called SDxVPN which considerably lowers the complexity of VPN service definition and management. Our method eliminates complex and costly device interactions that used to be done through several control plane protocols and enables customers to determine their service specifications, define restriction policies and even interconnect with other customers automatically without operator's intervention. We describe our prototype implementation of SDxVPN and its scalability evaluations under several representative scenarios. The results indicate the effectiveness of the proposed solution for deployment to provide large scale VPN services.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
