Method of distributed configuration of protection of automatically switching optical network

Abstract

The invention provides a method of distributed configuration under the protection of an automatically switching optical network (ASON), particularly a method of distributed configuration under the P-cycle (pre-configured cycle) protection of an ASON by combining the characteristics of the ASON, and a scheme used for carrying out the P-cycle distributed configuration, and the invention further provides a method of P-cycle protection against node and link failures in a network. The method comprises the following stages in the specific implementation: an initial configuration stage, a traversal search stage and a convergence stage. By configuring the P-cycle protection on the distributed basis, the invention can provide high-speed protection switching and ensure the high resource utilizationrate; and meanwhile, the invention can avoid the difficulties caused by changes in the network, and effectively reduce the traversal frequency of the algorithm, thereby effectively accelerating the P-cycle configuration and increasing the convergence rate of the algorithm.

Description

technical field [0001] The invention relates to a distributed configuration method for P-cycle protection of an Automatically Switching Optical Network (ASON), and proposes a set of distributed P-cycle protection schemes, which can effectively distribute P-cycles configuration, and designed a P-cycle protection method for node failure and link failure in the network. Background technique [0002] Traditional optical networks SDH (Synchronous Digital Hierarchy, Synchronous Digital System), SONET (Synchronous Optical Network, Synchronous Optical Network) and OTN (Optical Transmission Network, Optical Transport Network) are used to achieve large-capacity transmission, and can rely on network management to manage network performance, Security, configuration, maintenance, billing, alarm, etc. However, with the complexity of the network, the network management tasks are increasingly heavy, and it is difficult to quickly respond to real-time demands in the network. In the face of...

AI Technical Summary

Problems solved by technology

However, the automatic switching optical network is distributed. Once the network topology changes, or the resource usage in the network changes, it is bound to need to be reconfigured by the network management system, which greatly increases the work intensity of the network management. It is not good for the scalability and upgradeability of the network

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