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目前,人们普遍认为IP-over-WDM网络将成为未来骨干网的主流,但波分复用技术使得一根光纤的断裂可以导致大量数据的丢失,因此研究IP-over-WDM网络的生存性显得非常重要。为了进一步提高IP-over-WDM网络性能,文中基于辅助图模型(AGM),提出了分等级的多层保护算法和等级间业务备用资源部分共享策略,又提出了一种链路赋值的新方法。通过仿真实验可以发现,这一切大大降低了业务的阻塞率。
At present, it is generally believed that IP-over-WDM networks will become the mainstream of the future backbone network. However, the wavelength division multiplexing technology makes a fiber breakage can lead to a large amount of data loss. Therefore, studying the survivability of IP-over-WDM networks appears Very important. In order to further improve the performance of IP-over-WDM networks, this paper proposes a hierarchical sharing protection strategy based on the auxiliary graph model (AGM) and a strategy of shared resources for backup resources between levels. A new method of link assignment . Through the simulation experiment can be found, all this greatly reduces the business blocking rate.