The invention relates to a connection establishment signaling method based on an information expansion network, which can effectively avoid the signaling conflict in the connection establishment process and reduce the signaling blocking rate. The signaling method is implemented on the control plane server of the information diffused network based on the traditional RSVP-TE resource reservation protocol. When using the traditional resource reservation protocol in a node resource reservation fails, the signaling method firstly in the routing database of the node searching through other ports to achieve optimal routing destination node, the remaining part of the original route and replace the complete, routing redirection. If the route redirection fails, the method uses a return mechanism to redirect the route prior to one or more nodes that have passed. Finally, when the resource reservation signaling flow to the destination node after the reservation confirmation signaling flow along the opposite direction of the final route back to the source node, and at every node through the optical switch switching, while the corresponding link state change information to flood the whole network.
【技术实现步骤摘要】
【技术保护点】
一种基于信息扩散光网络的连接建立信令冲突避免方法,其特征在于包括:在基于信息扩散光网络的控制平面服务器上,当一个第一业务(C1)请求到达时,所述第一业务(C1)的源节点(1,S)在其路由数据库中为所述第一业务(C1)查找开销最小的路由及波长,并将该路由及波长信息提交至源节点的连接管理模块;在所述源节点的连接管理模块收到所述路由及波长信息后,从该源节点起沿所述的路由方向依次向路由途径节点发送包含所述路由及波长信息的资源预留消息,直到所述第一业务(C1)的目的节点接收到资源预留消息或发生资源预留失败;在每一个所述路由途径节点接收到所述资源预留消息后,该路由途径节点根据所述路由及 ...
【技术特征摘要】
【专利技术属性】
技术研发人员:华楠,陈悦,郑小平,张汉一,周炳琨,
申请(专利权)人:清华大学,
类型:发明
国别省市:11
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