Method for judging failure of cross module

Abstract

The invention relates to a method for judging failure of a cross module. Each interface module detection respectively comes from service channels of a main use cross module or a backup cross module, when any channel has failure and warning, the main use cross module or the backup cross module can be informed by a warning channel. The main use cross module or the backup cross module detection come form the warning channel of each interface module, when simultaneously reported number of the warning interface modules from the main use cross module or the backup cross module reach preset condition, the main use cross module or the backup cross module is judged as failure. Due to the fact that the interface modules are used for collecting warning states from the service channels of the cross modules, and the warning states are timely fed back to the cross modules, the cross modules use the warning of the service channels as one of bases to automatically switch, and quick switching can be achieved when failures occur in the main use cross module or the backup cross module, and thereby effectively shortening service break period.

Description

technical field [0001] The invention relates to fault detection of a cross-connect module, in particular to a method for judging failure of a cross-connect module. In particular, it refers to the method of detecting whether the cross-connect module of Synchronous Digital Transport (SDH) equipment, Packet Transport Network (PTN) equipment or Optical Transport Network (OTN) equipment fails. Background technique [0002] Existing SDH equipment, PTN equipment, and OTN equipment generally consist of backplanes, line interface modules (hereinafter referred to as interface modules), cross-connect modules and other modules. All services between interface modules need to be transferred through the cross-connect module. Therefore, the cross-connect module, as a key module, usually adopts a 1+1 redundant backup design, that is, the standby cross-connect module is always in the hot backup state. Once the active cross-connect module appears If there is a fault, the system will automatic...

AI Technical Summary

Problems solved by technology

However, when the service between the cross-connect module and the interface module fails due to failures other than the power supply, microprocessor, FPGA, and key chips, the failure cannot be detected only through the mutual detection of the active and standby cross-connect modules, and automatic switching cannot be performed.

At this time, although the interface module can detect an alarm on the service channel from the cross-connect module, it cannot be directly used as the basis for the automatic active / standby switchover of the cross-connect module, and can only be reported to the network management. Forced switchover to standby cross-connect module

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