新一代因特网正在孕育之中，虽然它的某些性能还在演变，但它在交换和传输、网络接入以及提供的业务等方面的基本特征已经初现端倪。新一代因特网可以划分为三个逻辑层次：1．负责高速传输和交换信息的核心网，也称为骨干网；2．提供与核心网的连接，为用户业务提供适配的接入? A new generation of the Internet is in the works, and although some of its capabilities are still evolving, its basic features in terms of exchange and transmission, network access, and services provided are beginning to emerge. The new generation of Internet can be divided into three logical levels: 1. The core network responsible for high-speed transmission and exchange of information, also known as the backbone network; Provide connection with the core network to provide user services with adaptive access?