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Link state detection method and system

A technology of link status and detection method, applied in transmission systems, digital transmission systems, electromagnetic wave transmission systems, etc., can solve the problem of occupying system CPU resources, and achieve the effect of improving fault location speed and saving manpower

Inactive Publication Date: 2018-01-05
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a link state detection method and system to at least solve the problem in the related art that a large number of protocol interactions occupy system CPU resources when sending and receiving message statistics during link state monitoring

Method used

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  • Link state detection method and system

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Embodiment 1

[0037] In this embodiment, a link state detection method is provided, figure 1 is a flowchart of a link state detection method according to an embodiment of the present invention, such as figure 1 As shown, the process includes the following steps:

[0038] Step S102, accessing the optical line terminal OLT at the sending end and the optical network unit ONU at the receiving end of the packets to be counted;

[0039] Step S104, obtaining the number of packets counted by the above-mentioned OLT and the above-mentioned ONU respectively, wherein the counted packets are packets sent by the above-mentioned OLT to the above-mentioned ONU;

[0040] Step S106, according to the number of packets counted by the OLT and the ONU respectively, the link status between the OLT and the ONU is detected.

[0041]Specifically, obtaining the number of packets counted by the above-mentioned OLT in step S104 includes: sending a command for starting packet statistics to the above-mentioned OLT, so...

Embodiment 2

[0045] Based on the technical solutions of the above embodiments and examples, the above technical solutions will be described in detail below in conjunction with an embodiment.

[0046] In this embodiment, a link state detection method is provided, figure 2 is a flowchart of a link state detection method according to an example of the present invention, such as figure 2 As shown, after the OLT and the ONU are connected to the EMS (network element management system), the process includes the following steps: Step S202: the EMS selects the PON port on the OLT at the message sending end, and selects the PON port to detect the PON port in the link. GEM-encapsulated message or LLID-encapsulated message;

[0047] Step S204: The EMS selects the ONU at the message receiving end, selects the GEM or LLID encapsulated message in the link to be detected on the ONU to be detected, the GEM or LLID encapsulated message on the ONU and the GEM or LLID selected by the PON port LLID-encapsu...

Embodiment 3

[0061] In this embodiment, a link state detection system is also provided, image 3 is a structural block diagram of a link state detection system according to an embodiment of the present invention, such as image 3 As shown, the system includes: message sending end OLT 32, message receiving end ONU 34 and network element management system EMS 36, wherein,

[0062] The EMS 36 accesses the above-mentioned OLT and ONU to be counted; the above-mentioned OLT 32 and the above-mentioned ONU 34 respectively count the number of packets, wherein, the packets to be counted are the packets sent by the above-mentioned OLT to the above-mentioned ONU; the above-mentioned EMS 36 is based on the above-mentioned OLT 32 and the number of packets counted separately from the above ONU34, and detect the link status between the above OLT32 and the above ONU34.

[0063] Through the interaction of the above-mentioned message sending end OLT 32, the message receiving end ONU 34 and the network eleme...

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Abstract

The invention provides a link state detection method and system. The method comprises the following steps: accessing a sending end optical line terminal OLT and a receiving end optical network unit ONU, which are about to count messages; obtaining the numbers of messages respectively counted by the OLT and the ONU, wherein the counted messages are messages sent by the OLT to the ONU; and detectinga link state between the OLT and the ONU according to the numbers of messages respectively counted by the OLT and the ONU. By adoption of the link state detection method and system provided by the invention, the problem that a large amount of protocol interaction is necessary for counting the received and sent messages during the link state detection, resulting in CPU resource occupation of the system in the prior art, is solved, the message statistical data in service flow between the OLT and the ONU in a P2MP scene can be counted quickly in real time, therefore the link state is detected, the fault locating speed is improved, and the fault locating manpower is saved.

Description

technical field [0001] The present invention relates to the field of PON (Passive Optical Network) access, in particular, to a [0002] Link state monitoring method and system. Background technique [0003] The existing Ethernet OAM (Operation Administration and Maintenance) technology detects links and packet loss methods. The 802.3OAM standard defines sending an Information packet per second. When 5 consecutive packets are lost, the link is considered broken. On; in the 802.1ag protocol, it is defined to periodically send CCM (Circuit (Supervision) Message, circuit (supervision) message) messages, and if three consecutive messages are lost, it is considered that the other party is unreachable; the implementation method of the Y.1731 standard The source end periodically sends an LMM (Loss Measurement Message, packet loss measurement message) message to the target maintenance endpoint. After receiving the message, the target maintenance endpoint will send an LMR (Loss Measu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/079H04L12/26
CPCH04B10/079
Inventor 翟乾坤李明生
Owner ZTE CORP
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