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未来的网络将变为以数据网络为中心,特别是以IP网络为中心。通过应用VPN技术,中国的电信营运商在未来网络上可以提供在逻辑上的多客户共享带宽,在IP结构的网络上提供VPN类型的服务。IP-VPN将提供一个支持关键商业应用的基础平台,它满足服务质量、安全性、可管理性、可扩展性。朗讯科技的着眼点是帮助现有的IP结构升级到新一代网络。通常情况下,VPN有三种类型,即通过专线、帧中继或ATM永久虚电路(PVC)和IP-VPN。通过专线,企业用户可以向电信业务提供商为特定的应用购买固定的带宽。通常情况下,企业投资购买自己的设备、设计并维护自己的网络。
The future of the network will become centered on data networks, especially IP networks. Through the application of VPN technology, telecom operators in China can provide logically multi-client shared bandwidth over future networks and provide VPN-type services over IP-structured networks. IP-VPN will provide a foundation platform to support key business applications that meet quality of service, security, manageability and scalability. Lucent Technologies’ focus is to help upgrade the existing IP architecture to a new generation of networks. In general, there are three types of VPNs, leased line, Frame Relay or ATM permanent virtual circuit (PVC) and IP-VPN. Through leased lines, business users can purchase fixed bandwidth for specific applications from telecom service providers. Often, businesses invest in their own equipment, designing and maintaining their own networks.