基于多重可备用的跨层资源优化方法

Multi-backupable based cross-layer resources optimization method

为了减少多层网络中的资源分配冗余,降低网络资源配置代价,提供必要的生存性保证,提出了基于多重可备用的跨层资源优化方法。该方法考虑不同业务的生存性需求,将多跳业务分为三类,对不同业务应用不同的资源分配方法;在最小化网络资源配置代价的约束下,提出多重可备用的思想,即同时使用层间备用和层内备用;最后应用ILP(Integer Linear programming,整数线性规划)技术对该方法进行分析和验证。

In order to reduce the redundancy of network resources assignment, the cost of resources configuration, and guarantee the survivability requirments, it provided the Multi-backupable based cross-layer resources optimization method. This method classified multi-hops service to three classes based on Diffserv model considering the different requirements of different service, and used different resource assignment method to different service classes; It provided the concept of multi-backupable,used inter-layer and intra-layer backup resources sharing at the same time based on the constraint that minimize the cost of resources configuration; Finally, it analyzed the performance of the method, it indicates that this method improves the resources utilization, reduces the cost of resources configuration, maximizes the resources sharing in multilayer networks while guarantees the service survivability.