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Method for obtaining clock states and operation modes of network element in simulation of fiber breaking failure

A working mode and fault-time technology, applied in the direction of electrical components, electromagnetic wave transmission system, transmission system, etc., can solve the problem of not being able to clearly obtain the working mode of the network element clock state

Active Publication Date: 2014-06-04
FENGHUO COMM SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0017] The technical problem to be solved by the present invention is that each network element in the transmission network cannot clearly obtain the clock state of the network element and which working mode the network element is in when simulating a fiber-cut fault in the network simulation system

Method used

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  • Method for obtaining clock states and operation modes of network element in simulation of fiber breaking failure
  • Method for obtaining clock states and operation modes of network element in simulation of fiber breaking failure
  • Method for obtaining clock states and operation modes of network element in simulation of fiber breaking failure

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Embodiment Construction

[0050] The present invention provides a method for obtaining the clock state and working mode of all network elements in the system when simulating a fiber break fault in a network simulation system, using a network element connected to the faulty optical fiber as the initial network element, and according to the iterative function , sequentially iteratively update the QL values ​​of the active and standby clocks of all downlinked elements with the clock of the starting network element as the main clock, and then use the downlinked element as the starting network element to iteratively update all the The QL values ​​of the active and standby clocks of networked elements are obtained until the end iteration condition is met, and the clock status of all network elements in the system is obtained through the above method, and then the clock working mode of all network elements is determined according to the judgment rules of clock switching.

[0051] Specifically, the method provi...

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Abstract

The invention discloses a method for obtaining clock states and operation modes of a network element in the simulation of a fiber breaking failure. The network element connected with a failing optical fiber serves as a starting network element, quality level (QL) values of main and standby clocks of all downstream connected network elements taking a clock of the starting network element as the main clock are iteratively updated in turn to obtain the clock states of all the network elements in a system, and then the clock states and operation modes of all the network elements are definitely displayed according to the criterion rules of clock switching. A user can conveniently analyze reasons for the failure.

Description

technical field [0001] The invention relates to an optical transmission network simulation system, in particular to a method for obtaining network element clock states and working modes when simulating a broken fiber fault in the optical transmission network simulation system. Background technique [0002] With the rapid development of network technology, the role of network simulation system is becoming more and more important. Using network simulation system, users can easily configure network elements and establish network topology on the graphical interface, observe the real-time operation of the network, and simulate various Network failure. [0003] In an optical transmission network system, the clock frequency of all switching nodes (network elements) in the network should be controlled within a predetermined tolerance range, so that all digital communication signals of each switching node in the network can be transmitted and exchanged correctly and effectively. . ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B10/032
Inventor 姚志伟王洪涛
Owner FENGHUO COMM SCI & TECH CO LTD
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