The rapid rise of the Internet and Intranet, especially the fast development of the P2P overlay network, has been due to the seamless access the information that is distributed in remote locations across the network.

• 随着公网Internet和企业网Intranet的快速发展,特别是最近P2P网络的飞速发展,网络上分布在不同地理位置的信息能够被方便地访问。