Fault detection debugging method of passive optical network system and communication message device

A passive optical network and system failure technology, applied in the field of network communication, can solve the problems of weak fault tolerance of PON system, achieve the effect of improving network reliability and availability, improving fault tolerance and providing flexibility

Inactive Publication Date: 2007-10-03
HUAWEI TECH CO LTD
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Problems solved by technology

But there is no practical method to realize point-to-multipoint fault detec

Method used

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  • Fault detection debugging method of passive optical network system and communication message device
  • Fault detection debugging method of passive optical network system and communication message device
  • Fault detection debugging method of passive optical network system and communication message device

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Embodiment Construction

[0027] Take the application of the inventive method in the EPON system as an example below, and further elaborate in conjunction with the accompanying drawings:

[0028] EPON is a passive optical network based on Ethernet technology, based on the MPCP protocol. The MPCP protocol implements the functions on the MAC control (media access control) sublayer, and uses messages, state machines, and timers to control communication between one point and many points. On the basis of the MPCP protocol, the EPON system implements a P2P emulation sublayer, which makes the point-to-multipoint network topology a collection of multiple point-to-multipoint links for the high layer. This sublayer is realized by adding an LLID (LogicalLinkIdentification, logical link identifier) ​​to each datagram. The LLID is mainly used to identify different ONUs. Each ONU has a globally unique LLID. The ONU uses the LLID to identify whether the data is sent to itself. Normally, if the OLT needs all ONUs to...

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Abstract

A method for detecting-eliminating fault of passive optical network system includes querying fault state information of system terminal by system office end through fault query field of message, reporting fault state to system office end by system terminal through query response field of message, analyzing fault state by office end device, sending forced power failure command to fault system terminal through forced power failure command field of message if that system terminal is fault is confirmed and automatically switching off power supply after command is received by fault system terminal.

Description

[technical field] [0001] The invention relates to the technical field of network communication, in particular to a passive optical network system fault detection and elimination method and a communication message device. [Background technique] [0002] PON (Passive Optical Network, Passive Optical Network) technology is a point-to-multipoint optical fiber transmission and access technology, downlink adopts broadcast mode, uplink adopts time division multiple access mode, and can flexibly form tree, star, bus type topology. The optical branch point of PON does not require node equipment, but only needs to install a simple passive optical splitter. The optical signal is no longer amplified and regenerated during transmission, and the network split is realized by the passive optical splitter. The advantages of PON technology are: broadband, business integration, flexible networking capabilities, and low cost. [0003] As shown in Figure 1, all PON systems are composed of sequ...

Claims

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Application Information

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IPC IPC(8): H04B10/08H04L1/00H04B10/077
Inventor 张仁静
Owner HUAWEI TECH CO LTD
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