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局域网(LAN)技术和广域网(WAN)技术正在走向融合。目前诞生了许多的产品和服务种类,将局域网的安全性、易用性以及广域网的分布性、开放性有机地融合在一起,使得现有的网络速度更加快捷,有能力将分布在全球的异种服务器连接在一起,从而使广域网和局域网的界线变得越来越模糊,最终形成全球网(GAN,global area network)的概念。最近,局域网领域的领导厂商Novell公司,率先提出了一个称为“弥漫”(pervasive)的应用构想。“弥漫”是一个由多个协同工作的商业网络构成的国际性大网络系统。在这个构想当中,可以用合作的方式在NetWare这个统一的软件环境当中加入众多的私营性商业局域
Local area network (LAN) technology and wide area network (WAN) technology are moving toward convergence. At present, many types of products and services have been born, and the security, ease of use of local area networks, and the distribution and openness of wide area networks have been organically combined, making existing networks faster and capable of distributing globally heterogeneous species. The servers are connected together, so that the boundary between the wide area network and the local area network becomes more and more blurred, and finally the concept of a global area network (GAN) is formed. Recently, Novell Inc., a leader in the area of local area networks, took the lead in proposing an application concept called pervasive. “Diffuse” is an international large-scale network system composed of a number of collaborative business networks. In this vision, a number of private commercial areas can be added to the unified software environment of NetWare in a cooperative manner.