With the rapid commercial applications of the WDM technology and the explosive growth of the transmission bandwidth of backbone networks, network survivability has become increasingly more important.

• 摘要随着波分复用(WDM)技术的迅速商用化，骨干网络传输带宽呈现爆炸式增长的趋势，这使得网络生存性变得越来越重要。