L1VPN的现状与未来发展  

Current Status and Future Development of L1VPN

作　　者：司昕[1] 

机构地区：[1]中兴通讯股份有限公司传输系统部,广东深圳518004

出　　处：《中兴通讯技术》2006年第6期14-18,共5页ZTE Technology Journal

摘　　要：智能光网络以及自动交换光网络/通用多协议标记交换(ASON/GMPLS)的快速发展为现有网络带来了许多新的增值业务,其中包括新的层一的虚拟专用网(L1VPN)业务。L1VPN应用模式有多种,国际电信联盟电信标准部门(ITU-T)的标准中定义了4种应用场景,分别是多业务骨干网、运营商的运营商(Carrier’scarrier)、层一的资源交易以及跨服务提供商(SP)的L1VPN。L1VPN的业务模型主要关注L1VPN业务的配置和管理等问题。因特网工程任务组(IETF)定义了两类L1VPN业务模型:基于管理平面的L1VPN业务模型和基于控制平面的业务模型。L1VPN的成功实现和应用,原因在于除了L1VPN能为用户提供新的增值业务外,安全、高效、灵活、可管理的特性能为运营商和用户带来双赢的局面。The rapid development of intelligent optical networks along with Automatically Switched Optical Networks/Generalized Multi-protocol Label Switching （ASON/GMPLS） has brought abundant new value-added services in current networks, including the newly-developed Layer 1 Virtual Private Network （L1VPN） services. L1VPN has many application situations, particularly 4 as defined in ITU-T＇ s standards, i.e., multi-service backbone network, carrier＇ s carrier, resource trade in Lay 1, and multi-Service Providers （SP） L1VPN. The L1VPN service model mainly deals with the configuration and management of L1VPN services. IETF has defined two types of models： one is based on the management plane and the other is based on the control plane. The successful implementation of L1VPN results from the reasons that it brings users with new value-added services end beers distinct advantages in security, effectiveness, flexibility and management, thus leading to a win-win play for operators end users.

关 键 词：虚拟专用网 业务模型 智能光网络 

分 类 号：TN929.1[电子电信—通信与信息系统]