波长/波带混合交换是WDM光网络中的一个新的研究热点。提出了一种在WDM多层多粒度交换网络中新的跨层交换路由算法—最大波带链路路由算法。该算法最大限度地利用波带交换链路和波带/波长混合交换链路的容量,仿真表明该算法能降低阻塞率,有效提供网络性能。 Wavelength / band hybrid switching is a new research hotspot in WDM optical network. This paper proposes a new cross-layer switching routing algorithm in WDM multi-layer and multi-granularity switching network-the max-band link routing algorithm. The algorithm makes full use of the capacity of the switching links of the band switching and wavelength band / wavelength mixing. The simulation shows that the algorithm can reduce the blocking rate and provide the network performance effectively.