The most efficient approach is called full concatenation,which involves joining the multiple pipes that make up a SONET link.The larger the concatenated signal,the greater the potential statistical gain from using ATM bandwidth management.

• 效率最高的方法被称为全面连入，它把构成SONET链路的多个通道连结起来，连在一起的信号越多，从使用ATM带宽管理得到的潜在统计收益就越大。