一种IP/DWDM光因特网中的路由选择机制

研究了一种资源约束最短路径优先 (RCSPF ,Resource ConstrainedShortestPathFirst)路由选择机制·这种机制可以用于扩展以通用多协议标记交换GMPLS为基础的IP/DWDM光因特网控制平面·借助光网络设备的可编程功能 ,在现有开放最短路径优先OSPF协议基础上 ,增加基于资源的路由约束条件 ,在一定程度上减少发生网络拥塞的可能性·另外 ,由于采用源路由以及在选路由过程中采用资源预分配机制 ,因此增强了对GMPLS信令系统的支持·同时 ,为了解决在资源不足情况下造成的信道分配失败问题进一步提出了相对路由的概念 ,使IP/DWDM光因特网在大幅增加带宽容量的同...

A Routing Mechanism in IP/DWDM Optical Internet

A RCSPF (Resource Constrained Shortest Path First) routing mechanism was introduced. It can be used to extend GMPLS control plane in IP/DWDM optical Internet. By adding those necessary networks resource constraints to those OSPF based routing algorithms, the mechanism can decrease network congestion probability to a certain extent. The extension of source routing mechanism and the introduction of advanced distribution of network resources give support to signaling system of GMPLS framework. In order to solve the problem involved in channel allocation failure due to insufficiency of resource, a concept of relative routing and its usage approach were proposed to provide higher connection rate as well as higher bandwidth utilization in IP/DWDM optical Internet. RCSPF can provide support for deployment of IP/DWDM optical Internet.