Transport network topological structure safety analytical method and implementation system

Abstract

The invention discloses a transport network topological structure safety analytical method. The method comprises the steps of firstly, using a node, an apparatus, a circuit, an optical cable, an optical path, a sub-circuit and a sub-optical cable to describe the topological structure of the transport network; then using a graph theory model to express the topological structure of the transport network; and finally using a graph theory to perform structure safety analysis including structure index analysis, optical path route analysis, component failure analysis and / or standby route analysis on the topological structure. The invention also discloses a system for realizing the method. The system is capable of storing, calling and displaying the original data, generated intermediate data and the result data in the analytical processes of the method in real time. The invention can also enhance data normality and accuracy managements, quicken fault location and maintenance efficiency, enhance network risk identification and control, and vividly display network multimedia information so as to improve the accuracy extent and working efficiency of safety management of the transport network topological structure.

Description

technical field [0001] The invention relates to the field of transmission technology, in particular to a method for analyzing the security of the topological structure of a transmission network and an implementation system. Background technique [0002] At present, the widely used optical fiber transmission network, from the perspective of the principle of service bearing, the optical cable is carried on the pipeline, the pole road and other lines. A transmission system is formed in which circuit services of various bandwidths are provided through the establishment of cross-connections and the allocation of channels and time slots. As the basic bearer network in the communication network, the security of the transport network is the basis for the security and stability of the communication network. According to actual application experience and habits, nodes, equipment, lines, optical cables, and optical paths are the major parts of the transmission system. Nodes include eq...

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Problems solved by technology

However, when calculating network structure indicators and identifying single-node hidden dangers, it mainly relies on manual statistics, which is irregular, error-prone, and inefficient. For example, calculating indicators related to physical routing, such as physical looping rate, The proportion of safe nodes, etc., manual accurate statistics are difficult and inefficient; and for example, the identification of single-node hidden dangers is also prone to errors and omissions, and sometimes even enters into a misunderstanding, mistakenly thinking that the machine building has carried out double-shaft, double-bureau front well renovation, or The construction of a dual-plane and dual-homing access system is equivalent to eliminating the hidden dangers of a single node, but does not consider whether the actual physical route passed by the optical path in and out of the node is really completely separated from the optical path level. These have become the security management work of the transport network topology. bottleneck in

However, network components such as equipment or optical cables in the transmission network are closely related to the entire network. When a network component fails, the network topology may degrade, resulting in a decrease in network security level. Comprehensive and rapid analysis of network component failures on the network The impact of the failure, as well as the early simulation of the failure impact and the comprehensive analysis of the backup route, are the keys to realize the active protection of the network and the dynamic allocation of resources. In these aspects, there is still a lack of perfect and effective analysis methods and implementation systems.

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