XDSL needs packet switching.

xdsl需要分组交换。

Packet Switching: The Internet is largely a packet switched network.

分组交换：因特网实质上是一个巨大的分组交换网络。

In this paper, we suggest to use PPS for the variable-length packet switching.

文章提出将多平面交换的结构用于变长数据包的交换。

Packet switching does not require a dedicated line between the sender and recipient.

包交换不需要在发送方和接收方之间使用专用线路。

The benefit of packet switching is that it can handle high-volume traffic in a network.

包交换的好处就在于它能够处理网络上大量的交易。