GMPLS技术及其路由算法

Multi-Protocol Label Switching (GMPLS) and its Routing Algorithm

通用多协议标签交换(GMPLS)是由多协议标签交换(MPLS)发展而来,它是MPLS向光层扩展的必然产物。GMPLS将时隙、波长和光纤端口作为标签用子数据转发,通过采用扩展的信令、路由协议和新增的链路管理机制以适应对智能光网络进行动态控制和传送信令的要求,动态提供网络资源并增加网络的存活性。本文着重比较了GMPLS与MPLS,说明其如何改进MPLS,并提供了GMPLS在光控制平面的应用解决方案。最后。

GMPLS （Generalized Multi-Protocol Label Switching） is developed from MPLS and is an inevitable result of MPLS＇ extension to optical networks. It adopts the extended signaling protocols, routing protocols and new link management protocols to satisfy the requests of dynamic control of intelligent optical networks signaling and to provide dynamic network resources and improve network survivability. This paper compares GMPLS and MPLS and explains how to improve MPLS. It also discusses the application of GMPLS in the optical control plane. Finally it analyzes the future of GMPLS and problems to be solved.