基于信令控制的網(wǎng)狀光網(wǎng)共享恢復(fù)策略研究
The Research of Mesh Optical Network Restoration Mechanism with Signaling Control
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摘要: 該文詳細(xì)研究了基于信令控制的網(wǎng)狀光網(wǎng)絡(luò)共享的分布式恢復(fù)策略，并基于現(xiàn)有的各種信令協(xié)議及其擴(kuò)展給出了具體的實(shí)現(xiàn)方案和流程。實(shí)驗(yàn)證明，基于共享的分布式恢復(fù)機(jī)制能大大提高網(wǎng)絡(luò)的資源利用率，有效地縮短恢復(fù)時(shí)間，滿足了IP與光網(wǎng)相互融合的需要，可用于實(shí)現(xiàn)自動(dòng)交換光網(wǎng)絡(luò)的分布式恢復(fù)。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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