It divides the software system into two levels: the logic integration level and the IPswitching level.
它将软件系统分为两个层次：逻辑集成层和IP交换层。
2
This paper discusses the key technologies of layer 3 switch-IPswitching and analysis several different IPswitching techniques. Finally it refers the existing problems in IPswitching.
讨论了第三层交换- IP交换的关键技术，分析比较了几种不同的IP交换技术，并指出了所存在的问题。
3
As defined in Wikipedia, the Internet is a worldwide, publicly accessible series of interconnected computer networks that transmit data by packet switching using the standard Internet Protocol (IP).