A wavelength label-based optical network monitoring method, system and electronic device

Abstract

The present disclosure relates to the technical field of optical network monitoring, and particularly relates to an optical network monitoring method and system based on wavelength labels and an electronic device, the method comprising: generating wavelength labels of source nodes and sink nodes respectively; sending the wavelength labels to an optical network interface disk to construct reference label data based on the wavelength labels; the optical network interface disk comprising: OCH interface disks of the source nodes and the sink nodes, OA disks in service paths, and OPM disks; obtaining current label data based on the wavelength labels reported by optical network equipment; and determining an optical network state by comparing the reference label data with the current label data. The scheme provided by the present disclosure configures wavelength labels for all network services, thereby determining whether optical fiber misconnection, disconnection and service interruption faults exist in optical fibers through which services pass, accurately determining service fault occurrence points, and realizing identification and tracking of wave channels based on the wavelength labels.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of optical network monitoring, in particular to an optical network monitoring method and system based on wavelength labels and an electronic device. BACKGROUND

[0002] The state of an optical communication network directly determines the quality of information transmission, and therefore needs to be monitored. Fiber faults such as fiber misconnection, fiber disconnection and abnormal fiber connection are the most common, and have the most significant impact on services. Currently, fiber faults mostly need to be monitored for fiber quality before service creation, and cannot timely monitor fiber faults occurring during service operation. Meanwhile, how to accurately locate fiber fault points is also a technical problem to be solved. SUMMARY

[0003] The present disclosure aims to at least partly solve one of the above technical problems, and proposes an optical network monitoring method based on wavelength labels, comprising:

[0004] generating wavelength labels of source nodes and sink nodes respectively;

[0005] sending the wavelength labels to an optical network interface disk to construct reference label data based on the wavelength labels; the optical network interface disk comprises OCH interface disks of the source nodes and the sink nodes, OA disks and OPM disks in a service path; the reference label data comprises correspondence relationship data between the wavelength labels and optical network nodes when the optical network is normal;

[0006] obtaining current label data based on the wavelength labels reported by optical network equipment;

[0007] comparing the reference label data and the current label data to determine the state of the optical network.

[0008] Further, the wavelength labels comprise one or more of the following parameters:

[0009] node parameters of the source nodes, node parameters of the sink nodes, rate, code type, center wavelength, center frequency and bandwidth; wherein the node parameters comprise:

[0010] network element ID, single disk ID and port.

[0011] Further, before generating the wavelength labels of the source nodes and the sink nodes respectively, the method further comprises:

[0012] determining whether the current service is an activated OCH service newly generated according to a switching event;

[0013] If yes, a wavelength label deletion command is sent to all nodes corresponding to the activated OCH service, so that the existing wavelength labels are deleted.

[0014] Further, the current label data reported by the optical network device based on the wavelength label is acquired, including:

[0015] The wavelength label is modulated into the carrier by the source node or the sink node;

[0016] The carrier is demodulated by the optical network device in the service path, the wavelength label is received, and the current label data is reported according to the wavelength label.

[0017] Further, the optical network state is determined by comparing the reference label data with the current label data, including:

[0018] When it is determined that the target path loss port exists the wavelength label of other paths, and the target path wavelength label exists in the other path single disc, it is determined that the target path fiber is misconnected.

[0019] Further, the optical network state is determined by comparing the reference label data with the current label data, including:

[0020] When it is determined that the target path loss port exists the wavelength label of other paths, and the target path wavelength label does not exist in the other path single disc, it is determined that the target path wavelength label is lost; and

[0021] When it is determined that the target path loss port does not exist the wavelength label of other paths, and the wavelength label is lost at the same time in the subsequent single disc, it is determined that the target path wavelength label is lost.

[0022] Further, the optical network state is determined by comparing the reference label data with the current label data, including:

[0023] When it is determined that the target path loss port exists the wavelength label of other paths, and the target path wavelength label does not exist in the subsequent single disc, it is determined that the target path fiber is misconnected.

[0024] When it is determined that the target path loss port exists the wavelength label of other paths, and the target path wavelength label does not exist in the subsequent single disc, it is determined that the target path fiber is misconnected.

[0025] Further, the optical network state is determined by comparing the reference label data with the current label data, including:

[0026] When it is determined that the target path loss port exists the wavelength label of other paths, and the target path wavelength label does not exist in the subsequent single disc, it is determined that the target path fiber is misconnected.

[0027] The present disclosure also proposes an optical network state monitoring system based on wavelength label, including:

[0028] a label generation module configured to generate wavelength labels for source nodes and destination nodes respectively;

[0029] a label configuration module configured to send the wavelength labels to an optical network interface disk to construct reference label data based on the wavelength labels; the optical network interface disk comprises OCH interface disks of the source nodes and the destination nodes, OA disks and OPM disks in the service path;

[0030] a data acquisition module configured to acquire current label data based on the wavelength labels reported by the optical network device;

[0031] a state determination module configured to compare the reference label data and the current label data to determine the state of the optical network.

[0032] The present disclosure also provides an electronic device comprising a memory and a processor, wherein the memory stores a computer program or instructions, and the computer program or instructions are executed by the processor to implement at least the wavelength label-based optical network monitoring method.

[0033] Compared with the prior art, the present disclosure has the following beneficial effects:

[0034] The present disclosure provides a wavelength label-based optical network monitoring method, which configures wavelength labels for all network services to determine whether there is fiber misconnection, fiber disconnection and service interruption fault in the optical fiber through which the service passes, and accurately determine the service fault occurrence point. In addition, the method provided by the present disclosure can also realize the identification and tracking of wave channels.

[0035] Other features and advantages of the present disclosure will be described in the following description, and some will become apparent from the description, or will be understood from the practice of the present disclosure. The purpose and other advantages of the present disclosure can be achieved and obtained by the structure specifically pointed out in the written description and the accompanying drawings. The technical solutions of the present disclosure will be further described below by the accompanying drawings and examples. BRIEF DESCRIPTION OF DRAWINGS

[0036] The accompanying drawings are used to provide a further understanding of the present disclosure, and constitute a part of the specification, and are used to explain the present disclosure together with the embodiments of the present disclosure, and do not constitute a limitation to the present disclosure. In the drawings:

[0037] Figure 1 A schematic diagram of the wavelength label-based optical network monitoring method for the embodiments;

[0038] Figure 2 A wavelength label generation and configuration flowchart for the embodiments;

[0039] Figure 3A flowchart for obtaining wavelength label data of an optical network device is given for an embodiment;

[0040] Figure 4 An optical network state detection algorithm diagram is given for an embodiment;

[0041] Figure 5 A wavelength label-based optical network monitoring system diagram is given for an embodiment;

[0042] Figure 6 An electronic device diagram is given for an embodiment;

[0043] Figure 7 A computer-readable storage medium diagram is given for an embodiment. DETAILED DESCRIPTION

[0044] The present disclosure is described below in conjunction with the accompanying drawings, in which the preferred embodiments described herein are intended to serve only as an illustration and an explanation of the present disclosure, and are not intended to limit the present disclosure.

[0045] Figure 1 A wavelength label-based optical network monitoring method is given for the present disclosure, comprising:

[0046] Step 101: generating wavelength labels for source nodes and sink nodes respectively;

[0047] Step 102: sending the wavelength labels to an optical network interface disk to build wavelength label-based reference label data; the optical network interface disk comprises OCH interface disks of source nodes and sink nodes, OA disks in a service path, and OPM disks; the reference label data comprises correspondence data between wavelength labels and optical network nodes when the optical network is normal;

[0048] Step 103: obtaining wavelength label-based current label data reported by an optical network device;

[0049] Step 104: comparing the reference label data and the current label data to determine an optical network state.

[0050] According to some embodiments of the present disclosure, the implementation process of the wavelength label-based optical network monitoring method proposed by the present disclosure is as follows:

[0051] 1. Create an OCH service on a network management and activate it. After successful activation, generate globally unique wavelength label IDs for source nodes and sink nodes respectively, and call a device wavelength label configuration interface to set the wavelength labels of the source nodes and sink nodes to OCH interface disks respectively.

[0052] 2. Transmit the wavelength labels to all OA disks and OPM disks in the service path to generate wavelength label reference data tables for single disks related to the service.

[0053] 3. After receiving the wavelength tag issued by the network management system, the source and destination network element devices perform wavelength tag modulation and distribute the wavelength tags to the OA and OPM boards along the actual service route. Based on the demodulated port service wavelength tag data of the OA and OPM boards, the devices report the wavelength tag status data update to the network management system.

[0054] 4. Receive wavelength tag change data reported by the device, update the stored device-side status data, compare it with the service wavelength tag reference data, generate fault information and store it (fault occurs) or update the stored fault information (fault disappears).

[0055] 5. Query OCH faults, input all OA and OPM disks on the OCH service route, query the wavelength tag status of the relevant single disk, update the stored device-side status data, compare it with the service wavelength tag baseline data, generate fault information and feedback.

[0056] Furthermore, the wavelength label includes one or more of the following parameters:

[0057] The node parameters of the source node, the node parameters of the destination node, the rate, the code pattern, the center wavelength, the center frequency, and the bandwidth; wherein, the node parameters include:

[0058] Network element ID, single disk ID, and port.

[0059] According to some embodiments of this disclosure, the wavelength tag is a globally unique wavelength tag ID composed of parameters such as source node (network element ID, single disk ID, source port), destination node (network element ID, single disk ID, destination port), rate, code pattern, center wavelength / frequency, and bandwidth. Depending on the order of source and destination node combination, the wavelength tags of the source and destination nodes for the same service are also different. The wavelength tag allocation table represents the correspondence between the wavelength tag ID and entries such as source node (network element ID, single disk ID, source port), destination node (network element ID, single disk ID, destination port), rate, code pattern, center wavelength / frequency, and bandwidth.

[0060] Furthermore, before generating the wavelength labels for the source and destination nodes respectively, the process also includes:

[0061] Determine whether the current service is a newly generated, activated OCH service based on the switchover event;

[0062] If so, a wavelength label deletion command is sent to all nodes corresponding to the activated OCH service to delete the existing wavelength labels.

[0063] According to some embodiments of the present disclosure, OCH service scenarios are divided into two types. For normally created and activated OCH services, wavelength labels are directly generated and issued to devices. For newly generated activated OCH services according to switching events, interface labels of original OCH services before switching are deleted first, and then wavelength labels are generated and issued to devices. Figure 2 A wavelength label generation and configuration flowchart is shown, which includes:

[0064] Step 201: An activated OCH service is selected, and a source node wavelength label is generated.

[0065] Step 202: The source node wavelength label is configured to an OCH interface disk of a service source node.

[0066] Step 203: A destination node wavelength label of the OCH service is generated.

[0067] Step 204: The destination node wavelength label is configured to an OCH interface disk of a service destination node.

[0068] Step 205: If the OCH service is deleted, wavelength label deletion commands need to be sent to all nodes having the service source and destination wavelength labels.

[0069] Based on Figure 2 The wavelength label generation and configuration method given above realizes generation and configuration of wavelength labels on the network management side for the two OCH service scenarios.

[0070] Further, current label data reported by optical network devices based on wavelength labels is obtained, including:

[0071] The wavelength label is modulated into a carrier by a source node or a destination node;

[0072] An optical network device in a service path demodulates the carrier, receives the wavelength label, and reports current label data according to the wavelength label.

[0073] According to some embodiments of the present disclosure, as Figure 3 shown, a wavelength label data obtaining flow of an optical network device includes:

[0074] Step 301: After receiving a wavelength label issued by a network management device, a source (or destination) network element device modulates a wavelength label subcarrier.

[0075] Step 302: An OA disk and an OPM disk on an actual service route detect and analyze a wavelength label subcarrier carried by a carrier wavelength.

[0076] Step 303: According to port service wavelength label data demodulated by the OA disk and the OPM disk, the device reports wavelength label state change data to the network management device.

[0077] Further, determining the optical network status by comparing the reference label data with the current label data comprises:

[0078] When it is determined that the lost port of the target path exists the wavelength label of other path, and the single disc of the other path exists the wavelength label of the target path, it is determined that the optical fiber of the target path is misconnected.

[0079] According to some embodiments of the present disclosure, as shown in Figure 4 After receiving the changed wavelength label reported by the device, the corresponding OCH service information is queried from the service wavelength label reference table, and each OA and OPM disc port on the OCH service route of the service wavelength label reference table is traversed. According to the device wavelength label state table, it is checked whether the port exists the lost label. For the port existing the lost label, it is checked whether the lost port exists the wavelength label of other path. For the lost port existing the wavelength label of other path, it is checked whether the single disc on the other path exists the wavelength label of the path. If yes, it is determined that the optical fiber is misconnected. Otherwise, it is determined that the label is lost.

[0080] Further, determining the optical network status by comparing the reference label data with the current label data further comprises:

[0081] When it is determined that the lost port of the target path exists the wavelength label of other path, and the single disc of the other path does not exist the wavelength label of the target path, it is determined that the wavelength label of the target path is lost.

[0082] When it is determined that the lost port of the target path does not exist the wavelength label of other path, and the subsequent single disc does not exist the wavelength label loss at the same time, it is determined that the wavelength label of the target path is lost.

[0083] According to some embodiments of the present disclosure, as shown in Figure 4 For the lost port not existing the wavelength label of other path, it is checked whether the subsequent single disc of the lost port all exist the label loss. If not, it is determined that the label is lost.

[0084] Further, determining the optical network status by comparing the reference label data with the current label data further comprises:

[0085] When it is determined that the subsequent single disc of the lost port of the target path exists the wavelength label loss at the same time, and the single disc of the lost label is not the VGA type single disc, it is determined that the optical fiber of the target path is misconnected.

[0086] When it is determined that the subsequent single disc of the lost port of the target path exists the wavelength label loss at the same time, the single disc of the lost label is the VGA type single disc, and there is no OSC single disc RLOS alarm associated with the VGA single disc, it is determined that the optical fiber of the target path is misconnected.

[0087] According to some embodiments of the present disclosure, as shown in Figure 4As shown, for the single disk after the loss of port, there is a label loss case, check whether the single disk with the lost label is a VGA type single disk, if not, it means that the fiber is abnormal.

[0088] Further, the reference label data is compared with the current label data to determine the optical network state, and the method further comprises:

[0089] When the single disk with the lost label is a VGA type single disk, and there is an OSC single disk RLOS alarm associated with the VGA single disk, it is determined that the optical fiber of the target path is disconnected.

[0090] According to some embodiments of the present disclosure, as Figure 4 As shown, for the case that the single disk with the lost label is a VGA type single disk, check whether there is an OSC type single disk associated with the VGA single disk and the OSC single disk has an RLOS alarm, if the OSC single disk exists and has an RLOS alarm, it means that the optical fiber is disconnected, otherwise it means that the fiber is abnormal.

[0091] Based on the same technical concept, as Figure 5 The present disclosure also proposes an optical network state monitoring system based on wavelength labels, comprising:

[0092] A label generation module 501 is configured to generate wavelength labels for source nodes and sink nodes respectively;

[0093] A label configuration module 502 is configured to send the wavelength labels to optical network interface disks to build reference label data based on wavelength labels; the optical network interface disks include OCH interface disks of source nodes and sink nodes, OA disks and OPM disks in service paths;

[0094] A data acquisition module 503 is configured to acquire current label data based on wavelength labels reported by optical network devices;

[0095] A state determination module 504 is configured to compare the reference label data with the current label data to determine the optical network state.

[0096] According to some embodiments of the present disclosure, the interface of the wavelength label configuration and state service provides:

[0097] 1. Wavelength label configuration interface: generate wavelength labels and set them to OCH interface disks (OTU disks) of service sources and sink network elements.

[0098] 2. Service wavelength label configuration interface: generate service wavelength label reference data according to service routing.

[0099] 3. Query OCH fault interface: according to the service route, query the OA and OPM wavelength label state along the way, compare the service wavelength label reference data, check the fault point, and return the fault point.

[0100] 4. Label state query interface: check the service wavelength label reference data and the device state data, check the fault point, and generate a report.

[0101] As shown in FIG. 6, Figure 6 The present disclosure provides an electronic device 600, which comprises a memory 601 and a processor 602, the memory 601 stores a computer program or instructions, and the computer program or instructions are executed by the processor 602 to at least implement the wavelength label-based optical network monitoring method.

[0102] As shown in FIG. 7, Figure 7 The present disclosure provides a computer readable storage medium 700, which stores a computer program or instructions, and the computer program or instructions are executed by a processor to at least implement the wavelength label-based optical network monitoring method.

[0103] The present disclosure also provides a computer program product stored in a computer readable storage medium, and the computer program product is executed by a processor to at least implement the wavelength label-based optical network monitoring method.

[0104] Obviously, those skilled in the art can make various modifications and variations to the present disclosure without departing from the spirit and scope of the present disclosure. Thus, if these modifications and variations of the present disclosure belong to the scope of the claims of the present disclosure and their equivalent technologies, the present disclosure also intends to include these modifications and variations.

Claims

1. A method for monitoring optical networks based on wavelength tags, characterized in that, include: Generate wavelength labels for the source node and the destination node respectively; The wavelength tags are sent to the optical network interface disk to construct reference tag data based on the wavelength tags; The optical network interface board includes: the OCH interface board for the source node and the destination node, the OA board and the OPM board in the service path; the reference tag data includes: the correspondence data between wavelength tags and optical network nodes when the optical network is normal. Obtain current tag data based on wavelength tags reported by optical network devices; The optical network status is determined by comparing the baseline tag data with the current tag data; Before generating the wavelength labels for the source and destination nodes respectively, the process also includes: Determine whether the current service is a newly generated, activated OCH service based on the switchover event; If so, a wavelength label deletion command is sent to all nodes corresponding to the activated OCH service to delete the existing wavelength labels.

2. The method as described in claim 1, characterized in that, The wavelength label includes one or more of the following parameters: The node parameters of the source node, the node parameters of the destination node, the rate, the code pattern, the center wavelength, the center frequency, and the bandwidth; wherein, the node parameters include: Network element ID, single disk ID, and port.

3. The method as described in claim 1, characterized in that, Obtain the current tag data based on wavelength tags reported by the optical network device, including: Wavelength tags are modulated onto a carrier wave using source or destination nodes; The carrier is demodulated using optical network equipment in the service path, wavelength tags are received, and the current tag data is reported based on the wavelength tags.

4. The method as described in claim 1, characterized in that, Determining the optical network state by comparing the baseline tag data with the current tag data includes: If it is determined that there are wavelength tags for other paths at the port where the target path is lost, and the target path wavelength tag is present on a single disk of another path, then the fiber optic cable of the target path is misconnected.

5. The method as described in claim 1, characterized in that, Determining the optical network status by comparing the baseline tag data with the current tag data further includes: When it is determined that the target path wavelength tag is lost at the port where the target path is lost, and the target path wavelength tag is not present on any of the other path individual boards, the target path wavelength tag is determined to be lost; and If it is determined that there are no other path wavelength tags at the target path loss port, and no subsequent single disks have wavelength tag loss, then the target path wavelength tag is determined to be lost.

6. A method for monitoring optical networks based on wavelength tags, characterized in that, include: Generate wavelength labels for the source node and the destination node respectively; The wavelength tags are sent to the optical network interface disk to construct reference tag data based on the wavelength tags; The optical network interface board includes: the OCH interface board for the source node and the destination node, the OA board and the OPM board in the service path; the reference tag data includes: the correspondence data between wavelength tags and optical network nodes when the optical network is normal. Obtain current tag data based on wavelength tags reported by optical network devices; The optical network status is determined by comparing the baseline tag data with the current tag data; The process of determining the optical network status by comparing the baseline tag data with the current tag data includes: If a wavelength tag is simultaneously lost on a subsequent single board at the target path's lost port, and the board with the lost tag is not a VGA type board, then the target path fiber connection is determined to be abnormal; and If a target path fiber connection is determined to be abnormal when a single board following the port where the target path is lost also has a lost wavelength tag, the single board with the lost tag is a VGA type single board, and there is no RLOS alarm associated with the VGA single board's OSC board.

7. A method for monitoring optical networks based on wavelength tags, characterized in that, include: Generate wavelength labels for the source node and the destination node respectively; The wavelength tags are sent to the optical network interface disk to construct reference tag data based on the wavelength tags; The optical network interface board includes: the OCH interface board for the source node and the destination node, the OA board and the OPM board in the service path; the reference tag data includes: the correspondence data between wavelength tags and optical network nodes when the optical network is normal. Obtain current tag data based on wavelength tags reported by optical network devices; The optical network status is determined by comparing the baseline tag data with the current tag data; The process of determining the optical network status by comparing the baseline tag data with the current tag data includes: If a target path fiber optic cable is found to be disconnected when a wavelength tag is lost on a subsequent single board at the port where the target path was lost, the single board with the lost tag is a VGA type single board, and there is an RLOS alarm on the OSC single board associated with the VGA single board.

8. A wavelength tag-based optical network status monitoring system for implementing the wavelength tag-based optical network status monitoring method according to any one of claims 1-7, characterized in that, include: The tag generation module is used to generate wavelength tags for the source node and the destination node, respectively. The tag configuration module is used to send the wavelength tags to the optical network interface disk and construct reference tag data based on the wavelength tags; The optical network interface board includes: the OCH interface board for the source node and the destination node, the OA board and the OPM board in the service path; The data acquisition module is used to acquire current tag data based on wavelength tags reported by optical network devices; The status determination module is used to compare the baseline tag data with the current tag data to determine the optical network status.

9. An electronic device comprising a memory and a processor, characterized in that, The memory stores a computer program or instructions, which, when executed by the processor, are used to implement at least the method described in any one of claims 1-7.

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