IP over WDM光网络及其生存性问题讨论

Discussion of IP over WDM Optical Network and its Survivability

本文介绍了 IP over WDM光网络的演进过程与发展趋势 ;讨论了其生存性问题 ,包括光层生存性有关概念、分类及各自的优缺点 ,IP/ MPL S层与 WDM层联合生存机制的必要性以及这种联合机制需要解决的竞争问题。

In this paper,the development of IP over WDM optical network is introduced.Then the issues related to its survivability are discussed.These issues include the concept and classification of survivability in optical layer,the advantage and disadvantage of each class,the coordination between IP/MPLS layer and WDM layer,such as avoiding contention between the two layers individual survivability schemes,sharing of spare capacity,avoiding failure propagation.