一种考虑阻塞率的WDM网络可用性算法

A Network Availability Algorithm in WDM Network Considering Blocking Ratio

研究了WDM网络中,网络向连接请求提供的可用性和全网的阻塞率之间的影响,提出了一种更加实际和科学的网络可用性概念,即为可用性与阻塞率的平衡点对应的可用性值。设计了动态业务下的网络可用性算法来得到网络可用性值,并对该算法进行了仿真,验证了其正确性。

As the need of network user for high-availability is increased, how to evaluate the network availability justly becomes an on edge problem. Network availability is studied from life of hardware aspect. We find that availability and blocking ratio are usual contradictory in WDM networks, and make a practical and scientific network availability definition, which is the threshold availability value compare blocking ratio. We proposed a Dynamic Network Availability Algorithm （DNAA） in WDM networks to get the network availability. It is practical to user and operator of network. Simulation results show that DNAA is not only correct but also efficient.