什么叫“比特交换”

比特交换机 == 路由器

“比特交换”这个词没搜到

DMT allocates from 2 to 15 bits per channel (bin). As line conditions change, bit swapping allows the modem to swap bits around different channels, without retraining, as each channel becomes more or less capable. If bit swapping is disabled then this does not happen and the modem needs to retrain in order to adapt to changing line conditions.

比特交换 功能是在通道的负载能力变高或低时，允许路由在通道之间进行比特数据交换，而不需要重新训练。如果此功能关闭，那么此动作将不能执行，而路由只能重新训练以适应新的通道环境。

看明白了吗？