基于信令控制的网状光网共享恢复策略研究
The Research of Mesh Optical Network Restoration Mechanism with Signaling Control
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摘要: 该文详细研究了基于信令控制的网状光网络共享的分布式恢复策略，并基于现有的各种信令协议及其扩展给出了具体的实现方案和流程。实验证明，基于共享的分布式恢复机制能大大提高网络的资源利用率，有效地缩短恢复时间，满足了IP与光网相互融合的需要，可用于实现自动交换光网络的分布式恢复。Abstract: In this paper, A kind of shared restoration mechanism of optical network based on signaling control is discussed in detail, and the implementation scheme using the exist-ing protocol is presented. It is proved by experimentation that the shared mechanism can increase greatly the resource utility, and decrease efficiently the restoration time. The mech-anism meet the request of the convergence of IP and optical network, could be applied to the ASON for efficient restoration.
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Li G, Doverspike R. Efficient distributed path selection for shared restoration connections. IEEE INFOCOM 2002, New York, June 2002, vol.1: 23-27.[2]Xu Y, Lamy P L. Generalized MPLS-based distributed control architecture for automatically switched transport networks. Bell Labs Technioal Journal, 2001, 6(1): 33-49.[3]Sengupta S, Ramamurthy R. Capacity efficient distributed routing of mesh-restored lightpaths in optical networks. IEEE GLOBECOM 2001, San Antonio, USA, Nov. 2001: 2129-2133.[4]Andersson L, Doolan P. LDP Specification. IETF RFC3036, January, 2001.[5]Ashwood-Smith P. Generalized MPLS signaling-CR-LDP extensions. IETF internet draft, work in progress, August 2002.Jamoussi B. Constraint-based LSP setup using LDP. IETF RFC3212, January, 2002.Lang J. Link management protocol. IETF internet draft, work in progress, November, 2002. -
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