Osu granular link resource discovery method, device, equipment and storage medium

Abstract

The application discloses an OSU granule link resource discovery method and device, equipment and a storage medium. The method reports PC service corresponding service data to a control plane through a network management device single disk. The control plane judges whether to send a link management protocol test (LMP TEST) message to an OSU flexible pipeline according to the node state reported by the device single disk. The control plane receives the LMP TEST message sent by the opposite end device, matches the LMP TEST message and the LMP TEST sending message, and obtains the successful service link resource. The method can discover and intuitively manage and monitor the link resource of the OSU granule pipeline, flexibly manage the equipment, release the management plane resource, improve the stable connectivity of the service in the protection scene, ensure the automatic and rapid recovery of the service, and improve the speed and efficiency of the OSU granule link resource discovery.

Description

Technical Field

[0001] This invention relates to the field of communication technology, and in particular to a method, apparatus, device, and storage medium for discovering OSU granular link resources. Background Technology

[0002] With the rapid development of information technology and the continuous changes in user needs, business dimensions are constantly evolving towards smaller Optical Service Unit (OSU) granularities. As customers continue to use the service, the number of OSU-granular services will increase. However, the network management interface currently displays more port-level rigid pipe link-related resources, making it difficult for customers to effectively and intuitively monitor and manage the flexible link resources of OSU service granularities, which to some extent wastes network bandwidth and system resources. Summary of the Invention

[0003] The main objective of this invention is to provide a method, apparatus, device, and storage medium for discovering OSU granular link resources, aiming to solve the technical problem in the prior art where customers cannot effectively and intuitively monitor and manage the flexible link resources of OSU service granules, thus wasting network bandwidth and system resources.

[0004] In a first aspect, the present invention provides an OSU granular link resource discovery method, the OSU granular link resource discovery method comprising the following steps:

[0005] The network management system sends PC services to individual device boards, and the individual device boards report the service data corresponding to the PC services to the control plane.

[0006] The control plane determines whether to send a Link Management Protocol Test (LMP) message to the OSU flexible pipeline based on the node status reported by the device's single panel.

[0007] The control plane receives the LMP TEST parsing message sent by the peer device, matches the LMP TEST parsing message with the LMP TEST sending message, and obtains the service link resources that have been successfully discovered.

[0008] Optionally, the network management system distributes PC services to individual device boards, and the individual device boards report the service data corresponding to the PC services to the control plane, including:

[0009] The network administrator distributes PC services to individual device disks.

[0010] The device polls the service status and node-related information of available OSU nodes in the PC service on a single disk.

[0011] The device single board uses the service status and the node-related information as service data, and reports the service data to the control plane.

[0012] Optionally, the control plane determines whether to send a Link Management Protocol Test (LMP) message to the OSU flexible pipe based on the node status reported by the device's single board, including:

[0013] The control plane obtains the node status of the node reported by the device single board, and determines whether to send a Link Management Protocol Test (LMP TEST) message based on the node status.

[0014] When the control plane needs to send an LMP TEST message, it sends the LMP TEST message to the OSU flexible pipeline.

[0015] Optionally, before the control plane receives the LMP TEST parsing message sent by the peer device, matches the LMP TEST parsing message with the LMP TEST sending message, and obtains the service link resource that has been successfully discovered, the OSU granular link resource discovery method includes:

[0016] The peer device parses the LMP TEST transmission message from the OSU flexible pipeline and reports the LMPTEST transmission message to the control plane.

[0017] Optionally, the control plane receives the LMP TEST parsing message sent by the peer device, matches the LMP TEST parsing message with the LMP TEST sending message, and obtains the service link resources for which resource discovery was successful, including:

[0018] The control plane receives the LMP TEST parsing message sent by the peer device, matches the LMP TEST parsing message with the LMP TEST sending message received by the local end, so that the link resource discovery of the OSU layer is successful, obtains the service link resource with successful resource discovery, and reports it to the network management system.

[0019] Optionally, after the control plane receives the LMP TEST parsing message sent by the peer device, matches the LMP TEST parsing message with the LMP TEST sending message, and obtains the service link resource that has been successfully discovered, the OSU granular link resource discovery method further includes:

[0020] The control plane automatically routes and sends low-level granular statistical process control (SPC) services according to customer needs or actual application scenario requirements, and configures the peer device according to the SPC services.

[0021] When a failure is detected in both the lowest-order OXU channels of the primary and backup service paths, the control plane automatically reroutes according to the actual application requirements of the scenario, deletes the original OXU particle configuration, and sends the new OXU particle SPC service configuration to the peer device so that the faulty protection service can be automatically restored.

[0022] Optionally, the control plane automatically routes and distributes low-level granular statistical process control (SPC) services based on customer needs or actual application scenario requirements. Before configuring the peer device according to the SPC services, the OSU granular link resource discovery method further includes:

[0023] When an abnormality occurs in the control plane, the device single board re-reports the saved available node service status information and LMP TEST transmission messages to restore link resources.

[0024] Secondly, to achieve the above objectives, the present invention also proposes an OSU granular link resource discovery device, which includes: a network management system, a device disk, and a control plane; wherein,

[0025] The network management system is used to distribute PC services to the single disk of the device;

[0026] The device single disk is used to report the service data corresponding to the PC service to the control plane;

[0027] The control plane is used to determine whether to send a Link Management Protocol Test (LMP) message to the OSU flexible pipeline based on the node status reported by the device's single panel.

[0028] The control plane is also used to receive LMP TEST parsing messages sent by the peer device, match the LMP TEST parsing messages with the LMP TEST sending messages, and obtain the service link resources that have been successfully discovered.

[0029] Thirdly, to achieve the above objectives, the present invention also proposes an OSU granular link resource discovery device, the OSU granular link resource discovery device comprising: a memory, a processor, and an OSU granular link resource discovery program stored in the memory and executable on the processor, the OSU granular link resource discovery program being configured to implement the steps of the OSU granular link resource discovery method as described above.

[0030] Fourthly, to achieve the above objectives, the present invention also proposes a storage medium storing an OSU granular link resource discovery program, wherein the OSU granular link resource discovery program, when executed by a processor, implements the steps of the OSU granular link resource discovery method as described above.

[0031] The OSU granular link resource discovery method proposed in this invention involves the network management system issuing PC services to individual device boards, which then report the corresponding service data to the control plane. The control plane determines whether to issue a Link Management Protocol Test (LMP) message to the OSU flexible pipeline based on the node status reported by the individual device board. The control plane receives LMP test parsing messages from peer devices and matches them with the LMP test messages to obtain successfully discovered service link resources. This method enables the discovery and intuitive management and monitoring of link resources using OSU granules as pipelines. It allows OSU granules in services to be flexibly managed by the control plane, freeing up management plane resources while further improving the stable connectivity of services in protection scenarios. It ensures automatic and rapid service recovery while saving significant manpower and improving the speed and efficiency of OSU granular link resource discovery. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the device structure of the hardware operating environment involved in the embodiments of the present invention;

[0033] Figure 2 This is a flowchart illustrating the first embodiment of the OSU granular link resource discovery method of the present invention;

[0034] Figure 3 This is a flowchart illustrating the second embodiment of the OSU granular link resource discovery method of the present invention;

[0035] Figure 4 This is a flowchart illustrating the third embodiment of the OSU granular link resource discovery method of the present invention;

[0036] Figure 5 This is a flowchart illustrating the fourth embodiment of the OSU granular link resource discovery method of the present invention;

[0037] Figure 6 This is a flowchart illustrating the fifth embodiment of the OSU granular link resource discovery method of the present invention;

[0038] Figure 7 This is a flowchart illustrating the sixth embodiment of the OSU granular link resource discovery method of the present invention;

[0039] Figure 8This is a flowchart illustrating the seventh embodiment of the OSU granular link resource discovery method of the present invention;

[0040] Figure 9 This is a flowchart illustrating the application of OSU link resource discovery in the OSU granular link resource discovery method of the present invention.

[0041] Figure 10 This is a functional block diagram of the first embodiment of the OSU granular link resource discovery device of the present invention.

[0042] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0043] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0044] The solution of this invention mainly involves: distributing PC services to individual device boards via network management; the individual device boards then report the corresponding service data to the control plane; the control plane determines whether to send a Link Management Protocol Test (LMP) message to the OSU flexible pipeline based on the node status reported by the individual device boards; the control plane receives the LMP TEST parsing message sent by the peer device, matches the LMP TEST parsing message with the LMP TEST message, and obtains the service link resources that have been successfully discovered; this enables the discovery and intuitive management and monitoring of link resources using OSU granules as pipelines, allowing OSU granules in services to be flexibly managed by the control plane, releasing management plane resources, further improving the stable connectivity of services in protection scenarios, ensuring automatic and rapid service recovery, saving a significant amount of human resources, improving the speed and efficiency of OSU granule link resource discovery, and solving the technical problem in the prior art where customers cannot effectively and intuitively monitor and manage the flexible link resources of OSU service granules, thus wasting network bandwidth and system resources.

[0045] Reference Figure 1 , Figure 1 This is a schematic diagram of the device structure of the hardware operating environment involved in the embodiments of the present invention.

[0046] like Figure 1As shown, the device may include: a processor 1001, such as a CPU; a communication bus 1002; a user interface 1003; a network interface 1004; and a memory 1005. The communication bus 1002 is used to enable communication between these components. The user interface 1003 may include a display screen or an input unit such as a keyboard; optionally, the user interface 1003 may also include a standard wired interface or a wireless interface. The network interface 1004 may optionally include a standard wired interface or a wireless interface (such as a Wi-Fi interface). The memory 1005 may be high-speed RAM or non-volatile memory, such as a disk drive. Optionally, the memory 1005 may also be a storage device independent of the aforementioned processor 1001.

[0047] Those skilled in the art will understand that Figure 1 The device structure shown does not constitute a limitation on the device and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0048] like Figure 1 As shown, the memory 1005, which serves as a storage medium, may include an operating device, a network communication module, a user interface module, and an OSU granular link resource discovery program.

[0049] The device of this invention calls the OSU granular link resource discovery program stored in the memory 1005 through the processor 1001 and performs the following operations:

[0050] The network management system sends PC services to individual device boards, and the individual device boards report the service data corresponding to the PC services to the control plane.

[0051] The control plane determines whether to send a Link Management Protocol Test (LMP) message to the OSU flexible pipeline based on the node status reported by the device's single panel.

[0052] The control plane receives the LMP TEST parsing message sent by the peer device, matches the LMP TEST parsing message with the LMP TEST sending message, and obtains the service link resources that have been successfully discovered.

[0053] The device of the present invention, through processor 1001 calling the OSU granular link resource discovery program stored in memory 1005, also performs the following operations:

[0054] The network administrator distributes PC services to individual device disks.

[0055] The device polls the service status and node-related information of available OSU nodes in the PC service on a single disk.

[0056] The device single board uses the service status and the node-related information as service data, and reports the service data to the control plane.

[0057] The device of the present invention, through processor 1001 calling the OSU granular link resource discovery program stored in memory 1005, also performs the following operations:

[0058] The control plane obtains the node status of the node reported by the device single board, and determines whether to send a Link Management Protocol Test (LMP TEST) message based on the node status.

[0059] When the control plane needs to send an LMP TEST message, it sends the LMP TEST message to the OSU flexible pipeline.

[0060] The device of the present invention, through processor 1001 calling the OSU granular link resource discovery program stored in memory 1005, also performs the following operations:

[0061] The peer device parses the LMP TEST transmission message from the OSU flexible pipeline and reports the LMPTEST transmission message to the control plane.

[0062] The device of the present invention, through processor 1001 calling the OSU granular link resource discovery program stored in memory 1005, also performs the following operations:

[0063] The control plane receives the LMP TEST parsing message sent by the peer device, matches the LMP TEST parsing message with the LMP TEST sending message received by the local end, so that the link resource discovery of the OSU layer is successful, obtains the service link resource with successful resource discovery, and reports it to the network management system.

[0064] The device of the present invention, through processor 1001 calling the OSU granular link resource discovery program stored in memory 1005, also performs the following operations:

[0065] The control plane automatically routes and sends low-level granular statistical process control (SPC) services according to customer needs or actual application scenario requirements, and configures the peer device according to the SPC services.

[0066] When a failure is detected in both the lowest-order OXU channels of the primary and backup service paths, the control plane automatically reroutes according to the actual application requirements of the scenario, deletes the original OXU particle configuration, and sends the new OXU particle SPC service configuration to the peer device so that the faulty protection service can be automatically restored.

[0067] The device of the present invention, through processor 1001 calling the OSU granular link resource discovery program stored in memory 1005, also performs the following operations:

[0068] When an abnormality occurs in the control plane, the device single board re-reports the saved available node service status information and LMP TEST transmission messages to restore link resources.

[0069] This embodiment, through the above scheme, distributes PC services to individual device boards via the network management system. The individual device boards then report the corresponding service data to the control plane. The control plane determines whether to send a Link Management Protocol Test (LMP) message to the OSU flexible pipeline based on the node status reported by the individual device boards. The control plane receives LMP test parsing messages from peer devices, matches the LMP test parsing messages with the LMP test sending messages, and obtains successfully discovered service link resources. This enables the discovery and intuitive management and monitoring of link resources using OSU granules as pipelines. It allows OSU granules in services to be flexibly managed by the control plane, releasing management plane resources while further improving the stable connectivity of services in protection scenarios. This ensures automatic and rapid service recovery while saving significant manpower and improving the speed and efficiency of OSU granule link resource discovery.

[0070] Based on the above hardware structure, an embodiment of the OSU granular link resource discovery method of the present invention is proposed.

[0071] Reference Figure 2 , Figure 2 This is a flowchart illustrating the first embodiment of the OSU granular link resource discovery method of the present invention.

[0072] In the first embodiment, the OSU granular link resource discovery method includes the following steps:

[0073] Step S10: The network management system sends PC services to the device single board, and the device single board reports the service data corresponding to the PC services to the control plane.

[0074] It should be noted that the network management system sends PC services to the device disk, and the device disk can then report the service data corresponding to the PC service to the control plane. The service data includes, but is not limited to, service data from Optical Transport Network (OTN) / Ethernet ports xGe / xSTM, Optical Service Unit (OSU), or OXU. OXU is a hypothetical next-generation, lower-order granular service using OSU as the pipeline.

[0075] Step S20: The control plane determines whether to send a Link Management Protocol Test (LMP) message to the OSU flexible pipeline based on the node status reported by the device single board.

[0076] It is understood that the control plane can determine whether to send a Link Manager Protocol (LMP) TEST message for the entire network displacement based on the node status reported by the device's single board, and send the message to the OSU flexible pipeline according to the LMP TEST.

[0077] Step S30: The control plane receives the LMP TEST parsing message sent by the peer device, matches the LMP TEST parsing message with the LMP TEST sending message, and obtains the service link resources that have been successfully discovered.

[0078] It should be understood that the control plane will match the received LMP Test messages with the sent messages. That is, the control plane receives the LMP TEST parsing message sent by the peer device, and can match the LMP TEST parsing message with the LMP TEST sent message. Based on the matching result, the service link resources that have been successfully discovered are obtained.

[0079] This embodiment, through the above scheme, distributes PC services to individual device boards via the network management system. The individual device boards then report the corresponding service data to the control plane. The control plane determines whether to send a Link Management Protocol Test (LMP) message to the OSU flexible pipeline based on the node status reported by the individual device boards. The control plane receives LMP test parsing messages from peer devices, matches the LMP test parsing messages with the LMP test sending messages, and obtains successfully discovered service link resources. This enables the discovery and intuitive management and monitoring of link resources using OSU granules as pipelines. It allows OSU granules in services to be flexibly managed by the control plane, releasing management plane resources while further improving the stable connectivity of services in protection scenarios. This ensures automatic and rapid service recovery while saving significant manpower and improving the speed and efficiency of OSU granule link resource discovery.

[0080] Furthermore, Figure 3 This is a flowchart illustrating the second embodiment of the OSU granular link resource discovery method of the present invention, as shown below. Figure 3 As shown, based on the first embodiment, a second embodiment of the OSU granular link resource discovery method of the present invention is proposed. In this embodiment, step S10 specifically includes the following steps:

[0081] Step S11: The network management system issues PC services to the device disk.

[0082] It should be noted that the network management system sends PC services to individual device disks, including the highest-level service data to the OSU, from OTN (including but not limited to OTU / xGe / xSTM) to OSU (or to OXU, or assuming that OXU is a next-generation lower-level granular service with OSU as the pipeline).

[0083] Step S12: The device polls the service status and node-related information of available OSU nodes in the PC service on a single disk.

[0084] Understandably, the device reports the service status and related information of available OSU nodes to the control plane, and the device polls and reports the service status and node-related information (such as node status, bandwidth, and time slot mapping relationship) of available OSU nodes to the control plane.

[0085] Step S13: The device single board uses the service status and the node-related information as service data and reports the service data to the control plane.

[0086] It should be understood that the device can use the service status and the node-related information as service data, and then report the service data to the control plane.

[0087] This embodiment, through the above scheme, distributes PC services to a single device disk via the network management system; the single device disk polls the service status and node-related information of available OSU nodes in the PC service; the single device disk uses the service status and node-related information as service data and reports the service data to the control plane, enabling the discovery and intuitive management and monitoring of link resources using OSU particles as pipelines. This allows OSU particles in the service to be flexibly managed by the control plane, improving the speed and efficiency of OSU particle link resource discovery.

[0088] Furthermore, Figure 4 This is a flowchart illustrating the third embodiment of the OSU granular link resource discovery method of the present invention, as shown below. Figure 4 As shown, based on the first embodiment, a third embodiment of the OSU granular link resource discovery method of the present invention is proposed. In this embodiment, step S20 specifically includes the following steps:

[0089] Step S21: The control plane obtains the node status of the node reported by the device single board, and determines whether to send a Link Management Protocol Test (LMP) message based on the node status.

[0090] It should be noted that the control plane can decide whether to send an LMP TEST message based on the reported node status.

[0091] Step S22: When the control plane needs to send an LMP TEST message, it sends the LMP TEST message to the OSU flexible pipeline.

[0092] It is understandable that when the control plane needs to send an LMP TEST message, it can send a unique LMP TEST message to the OSU flexible pipeline based on the available OSU channel.

[0093] This embodiment, through the above-described scheme, obtains the node status of the device's single-board reporting node via the control plane, and determines whether to issue a Link Management Protocol Test (LMP) message based on the node status. When the control plane needs to issue an LMP message, it sends the LMP message to the OSU flexible pipeline. This enables the discovery and intuitive management and monitoring of link resources using OSU granules as pipelines. It allows OSU granules in services to be flexibly managed by the control plane, releasing management plane resources while further improving the stable connectivity of services in protection scenarios, and increasing the speed and efficiency of OSU granule link resource discovery.

[0094] Furthermore, Figure 5This is a flowchart illustrating the fourth embodiment of the OSU granular link resource discovery method of the present invention, as shown below. Figure 5 As shown, based on the first embodiment, a fourth embodiment of the OSU granular link resource discovery method of the present invention is proposed. In this embodiment, before step S30, the OSU granular link resource discovery method further includes the following steps:

[0095] Step S301: The peer device parses the LMP TEST transmission message from the OSU flexible pipeline and reports the LMP TEST transmission message to the control plane.

[0096] It should be noted that the peer device parses the LMP TEST message and reports it to the control plane. That is, the peer device parses the LMP TEST message from the OSU flexible pipe and reports the LMP TEST message to the control plane. This refines the link status of the service from the rigid pipe at the port level to the flexible pipe at the lower OSU granularity, which can more intuitively and effectively manage and monitor the link status of the OSU service granularity.

[0097] This embodiment, through the above-described scheme, allows the peer device to parse the LMPTEST transmission message from the OSU flexible pipeline and report the LMP TEST transmission message to the control plane; this enables the discovery and intuitive management and monitoring of link resources using OSU particles as pipelines, improving the speed and efficiency of OSU particle link resource discovery.

[0098] Furthermore, Figure 6 This is a flowchart illustrating the fifth embodiment of the OSU granular link resource discovery method of the present invention, as shown below. Figure 6 As shown, based on the first embodiment, a fifth embodiment of the OSU granular link resource discovery method of the present invention is proposed. In this embodiment, step S30 specifically includes the following steps:

[0099] Step S31: The control plane receives the LMP TEST parsing message sent by the peer device, matches the LMP TEST parsing message with the LMP TEST sending message received by the local end, so that the link resource discovery of the OSU layer is successful, obtains the service link resource with successful resource discovery, and reports it to the network management system.

[0100] It should be noted that the control plane matches the received LMP TEST messages with the sent messages, thereby enabling the OSU layer to successfully discover link resources. This means that the service link resources that use the OSU as a pipeline are successfully discovered and reported to the network management system.

[0101] In practical implementation, current OSU service granularities cannot be directly and effectively managed and monitored, partly because there is no corresponding standard protocol. Therefore, the G.7714.1 protocol standard proposes a method to transmit and discover OSU layer resources through partial overhead bytes in the overhead frame structure of the OSU granularity. When a customer establishes a service with the OSU granularity (or a lower-order granularity carried under the OSU granularity) as the lowest order, the single-disk device uses the GNU Compiler Collection (GCC) byte or the Microsoft Speech API (SAPI) byte in the Plant Maintenance (PM) layer of the overhead frame structure of the OSU granularity to transmit LMP. The TEST message enables the discovery and reporting of link resources for OSU granules. By using this method, the control plane can become aware of the resources of OSU granule links. Combined with the customer's configuration requirements for OSU granules (or lower-order granules carried under OSU granules), and leveraging the control plane's automatic routing protection and recovery features, it can flexibly manage and configure OSU granules (or lower-order granules carried under OSU granules). When both primary and backup service channels carried under OSU granules become unavailable, the control plane automatically re-finds available routes for OXU granules and manages and configures them, ensuring automatic and rapid service recovery while saving significant manpower.

[0102] This embodiment, through the above-described scheme, receives LMP TEST parsing messages sent by the peer device through the control plane, matches the LMP TEST parsing messages with the LMP TEST sending messages received locally, so as to successfully discover the link resources at the OSU layer, obtain the service link resources that have been successfully discovered, and report them to the network management system. This enables the discovery and intuitive management and monitoring of link resources using OSU particles as pipelines. It allows OSU particles in services to be flexibly managed by the control plane, releasing management plane resources while further improving the stable connectivity of services in protection scenarios. It ensures automatic and rapid service recovery while saving a lot of human resources and improving the speed and efficiency of OSU particle link resource discovery.

[0103] Furthermore, Figure 7 This is a flowchart illustrating the sixth embodiment of the OSU granular link resource discovery method of the present invention, as shown below. Figure 7 As shown, based on the first embodiment, a sixth embodiment of the OSU granular link resource discovery method of the present invention is proposed. In this embodiment, after step S30, the OSU granular link resource discovery method further includes the following steps:

[0104] Step S40: The control plane automatically routes and sends low-level granular statistical process control (SPC) services according to customer needs or actual application scenario requirements, and configures the peer device according to the SPC services.

[0105] It should be noted that the control plane can automatically route and issue low-level Statistical Process Control (SPC) services (OSU or OXU) to configure the equipment based on customer needs or actual application scenario requirements.

[0106] Step S50: When a failure is detected in both the lowest-level OXU channels of the primary and backup service paths, the control plane automatically reroutes according to the actual application requirements of the scenario, deletes the original OXU particle configuration, and sends the new OXU particle SPC service configuration to the peer device so that the faulty protection service can be automatically restored.

[0107] It should be understood that in protection scenarios where OXU is the lowest-level granularity, if both the lowest-level OXU channels of the primary and backup service paths fail, the control plane can automatically reroute according to actual application needs, delete the original OXU granular configuration, and issue new OXU granular SPC service configurations to the devices, enabling the failed protection services to automatically and quickly recover. In scenarios where PC and SPC services coexist, lower-level OXU granularities carried under the OSU pipeline can be managed and protected more effectively, saving network bandwidth and system manpower.

[0108] This embodiment, through the above-described scheme, uses the control plane to automatically route and distribute low-level granular statistical process control SPC services according to customer needs or actual application scenario requirements. Based on the SPC services, the peer device is configured. When a failure is detected in both the primary and backup service paths' lowest-level OXU channels, the control plane automatically reroutes according to the actual application scenario requirements, deletes the original OXU granular configuration, and distributes new OXU granular SPC service configurations to the peer device, enabling the automatically restored protection service. This allows link resources using OSU granules as pipelines to be discovered and intuitively managed and monitored. It also allows for flexible control of OSU granules within the service by the control plane, freeing up management plane resources and further improving the stable connectivity of services in protection scenarios.

[0109] Furthermore, Figure 8 This is a flowchart illustrating the seventh embodiment of the OSU granular link resource discovery method of the present invention, as shown below. Figure 8 As shown, based on the sixth embodiment, a seventh embodiment of the OSU granular link resource discovery method of the present invention is proposed. In this embodiment, before step S40, the OSU granular link resource discovery method further includes the following steps:

[0110] Step S401: When an abnormal situation occurs in the control plane, the device single board re-reports the saved available node service status information and LMP TEST transmission messages to restore link resources.

[0111] It should be noted that in abnormal situations such as control plane restart, the single disk re-reports the saved information such as the service status of available nodes and LMP TEST messages, enabling link resources to recover quickly.

[0112] Understandably, after link resource discovery, the control plane can also automatically route and distribute low-level granular SPC services (OSU or OXU) to the device configuration based on customer needs or actual application scenario requirements. If there are OXU granularities, the control plane can automatically route and distribute low-level OXU granular SPC service configurations to the device based on the OXU granular service requirements (source node, destination node, etc.) to form a complete service mapping.

[0113] In specific implementations, such as Figure 9 As shown, Figure 9 This is a flowchart illustrating the OSU link resource discovery application in the OSU granular link resource discovery method of the present invention. (See attached diagram.) Figure 9(1) The network management system sends PC services to the main control system. PC services include service data of OTN (including but not limited to OTU / xGe / xSTM)-OSU (-OXU); (2) The main control system notifies the nearby single disks. The single disks of the devices poll and report the service status and related information (such as node status, bandwidth, time slot mapping relationship, etc.) of available OSU nodes to the control plane; the relevant information of available low-level nodes can be used to determine whether it affects the overhead channel alarm. If not, it will be stuck in the plane directly. If it is, it will be further determined to be the first report. If it is, it will be discarded. If it is not the first report, it will be sent to the control plane; the service status of available low-level nodes, related information and LMP messages will be reported; (3) The control plane decides whether to send LMP TEST messages based on the reported node status; (4) The peer device parses the LMP Test message and reports it to the control plane; (5) The control plane will send the LMP received by the local end to the control plane. The Test message is matched with the message sent by the peer, so that the link resource discovery of the OSU layer is successful and reported to the network management system; (6) In case of abnormal situations such as control plane restart, the single disk re-reports the information such as the saved available node service status and LMP Test message, so that the link resource can be quickly restored; (7) After the link resource is discovered, the control plane can also automatically route and send low-level SPC services (OSU or OXU) to the device configuration according to customer needs or actual application needs; For example, in the protection scenario with OXU as the lowest level granularity, if the lowest level OXU channel of the primary and backup service paths fails, the control plane can automatically reroute according to actual application needs, delete the original OXU granular configuration and send the new OXU granular SPC service configuration to the device, so that the protection service that has failed can be automatically and quickly restored.

[0114] This embodiment, through the above-described scheme, enables the device to re-report the saved available node service status information and LMP TEST transmission messages when the control plane experiences an anomaly, thereby restoring link resources. This allows link resources with OSU particles as pipelines to be discovered and managed intuitively, and allows OSU particles in services to be flexibly controlled by the control plane. While releasing management plane resources, it further improves the stable connectivity of services in protection scenarios.

[0115] Accordingly, the present invention further provides an OSU granular link resource discovery device.

[0116] Reference Figure 10 , Figure 10 This is a functional block diagram of the first embodiment of the OSU granular link resource discovery device of the present invention.

[0117] In the first embodiment of the OSU granular link resource discovery device of the present invention, the OSU granular link resource discovery device includes: a network management system 10, a device disk 20, a control plane 30, and a peer device 40; wherein,

[0118] The network management system 10 is used to send PC services to the device disk 20.

[0119] The device single disk 20 is used to report the service data corresponding to the PC service to the control plane 30.

[0120] The control plane 30 is used to determine whether to send a Link Management Protocol Test (LMP) message to the OSU flexible pipeline based on the node status reported by the device's single panel.

[0121] The control plane 30 is also used to receive LMP TEST parsing messages sent by the peer device, match the LMP TEST parsing messages with the LMP TEST sending messages, and obtain the service link resources that have been successfully discovered.

[0122] The single disk 20 of the device is also used to poll the service status and node-related information of available OSU nodes in the PC service.

[0123] The device single disk 20 is also used to take the service status and the node-related information as service data and report the service data to the control plane.

[0124] The control plane 30 is also used to obtain the node status of the single-board reporting node of the device, and determine whether to send a Link Management Protocol Test (LMP) message based on the node status.

[0125] The control plane 30 is also used to send the LMP TEST message to the OSU flexible pipeline when it is necessary to send the LMP TEST message.

[0126] The peer device 40 is also used to parse the LMP TEST transmission message from the OSU flexible pipeline and report the LMP TEST transmission message to the control plane.

[0127] The control plane 30 is also used to receive LMP TEST parsing messages sent by the peer device, match the LMP TEST parsing messages with the LMP TEST sending messages received by the local end, so as to enable the link resource discovery of the OSU layer to be successful, obtain the service link resources that have been successfully discovered, and report them to the network management system.

[0128] The control plane 30 is also used to automatically route and send low-level statistical process control (SPC) services according to customer needs or actual application scenario requirements, and to configure the peer device according to the SPC services.

[0129] The device single disk 20 is also used to re-report the saved available node service status information and LMP TEST transmission messages when an abnormal situation occurs in the control plane, so as to restore link resources.

[0130] The steps for implementing each functional module of the OSU granular link resource discovery device can be referred to in the various embodiments of the OSU granular link resource discovery method of the present invention, and will not be repeated here.

[0131] Furthermore, this embodiment of the invention also proposes a storage medium storing an OSU granular link resource discovery program, which, when executed by a processor, performs the following operations:

[0132] The network management system sends PC services to individual device boards, and the individual device boards report the service data corresponding to the PC services to the control plane.

[0133] The control plane determines whether to send a Link Management Protocol Test (LMP) message to the OSU flexible pipeline based on the node status reported by the device's single panel.

[0134] The control plane receives the LMP TEST parsing message sent by the peer device, matches the LMP TEST parsing message with the LMP TEST sending message, and obtains the service link resources that have been successfully discovered.

[0135] Furthermore, when the OSU granular link resource discovery program is executed by the processor, it also performs the following operations:

[0136] The network administrator distributes PC services to individual device disks.

[0137] The device polls the service status and node-related information of available OSU nodes in the PC service on a single disk.

[0138] The device single board uses the service status and the node-related information as service data, and reports the service data to the control plane.

[0139] Furthermore, when the OSU granular link resource discovery program is executed by the processor, it also performs the following operations:

[0140] The control plane obtains the node status of the node reported by the device single board, and determines whether to send a Link Management Protocol Test (LMP TEST) message based on the node status.

[0141] When the control plane needs to send an LMP TEST message, it sends the LMP TEST message to the OSU flexible pipeline.

[0142] Furthermore, when the OSU granular link resource discovery program is executed by the processor, it also performs the following operations:

[0143] The peer device parses the LMP TEST transmission message from the OSU flexible pipeline and reports the LMPTEST transmission message to the control plane.

[0144] Furthermore, when the OSU granular link resource discovery program is executed by the processor, it also performs the following operations:

[0145] The control plane receives the LMP TEST parsing message sent by the peer device, matches the LMP TEST parsing message with the LMP TEST sending message received by the local end, so that the link resource discovery of the OSU layer is successful, obtains the service link resource with successful resource discovery, and reports it to the network management system.

[0146] Furthermore, when the OSU granular link resource discovery program is executed by the processor, it also performs the following operations:

[0147] The control plane automatically routes and sends low-level statistical process control (SPC) services based on customer needs or actual application scenario requirements, and configures the peer device according to the SPC services.

[0148] Furthermore, when the OSU granular link resource discovery program is executed by the processor, it also performs the following operations:

[0149] When an abnormality occurs in the control plane, the device single board re-reports the saved available node service status information and LMP TEST transmission messages to restore link resources.

[0150] Those skilled in the art will understand that all or part of the steps in the methods described above can be implemented by a program instructing related hardware. The program is stored in a storage medium and includes several instructions to cause a device (which may be a microcontroller, chip, etc.) or processor to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0151] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0152] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0153] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural or procedural transformations made based on the description and drawings of the present invention, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of the present invention.

Claims

1. A method for discovering OSU granular link resources, characterized in that, The OSU granular link resource discovery method includes: The network management system sends PC services to individual device boards, and the individual device boards report the service data corresponding to the PC services to the control plane. The control plane determines whether to send a unique Link Management Protocol Test (LMP) message to the OSU flexible pipe based on the node status reported by the device's single board. The control plane receives the LMP TEST parsing message sent by the peer device, matches the LMP TEST parsing message with the LMP TEST sending message, and obtains the service link resources that have been successfully discovered.

2. The OSU granular link resource discovery method as described in claim 1, characterized in that, The network management system distributes PC services to individual device boards, and the individual device boards report the service data corresponding to the PC services to the control plane, including: The network administrator distributes PC services to individual device disks. The device polls the service status and node-related information of available OSU nodes in the PC service on a single disk. The device single board uses the service status and the node-related information as service data, and reports the service data to the control plane.

3. The OSU granular link resource discovery method as described in claim 1, characterized in that, The control plane determines whether to issue a unique Link Management Protocol Test (LMP) message to the OSU flexible pipe based on the node status reported by the device's single board, including: The control plane obtains the node status of the node reported by the device single board, and determines whether to send a Link Management Protocol Test (LMP TEST) message based on the node status. When the control plane needs to send an LMP TEST message, it sends the LMP TEST message to the OSU flexible pipeline.

4. The OSU granular link resource discovery method as described in claim 1, characterized in that, Before the control plane receives the LMP TEST parsing message sent by the peer device and matches the LMP TEST sending message with the LMP TEST parsing message to obtain the service link resource that has been successfully discovered, the OSU granular link resource discovery method includes: The peer device parses the LMP TEST transmission message from the OSU flexible pipeline and reports the LMP TEST transmission message to the control plane.

5. The OSU granular link resource discovery method as described in claim 1, characterized in that, The control plane receives the LMP TEST parsing message sent by the peer device, matches the LMP TEST parsing message with the LMP TEST sending message, and obtains the service link resources that have been successfully discovered, including: The control plane receives the LMP TEST parsing message sent by the peer device, matches the LMP TEST parsing message with the LMP TEST sending message received by the local end, so that the link resource discovery of the OSU layer is successful, obtains the service link resource with successful resource discovery, and reports it to the network management system.

6. The OSU granular link resource discovery method as described in claim 1, characterized in that, The control plane receives the LMP TEST parsing message sent by the peer device, matches the LMP TEST parsing message with the LMP TEST sending message, and obtains the service link resource that has been successfully discovered. The OSU granular link resource discovery method further includes: The control plane automatically routes and sends low-level granular statistical process control (SPC) services according to customer needs or actual application scenario requirements, and configures the peer device according to the SPC services. When a failure is detected in both the lowest-order OXU channels of the primary and backup service paths, the control plane automatically reroutes according to the actual application requirements of the scenario, deletes the original OXU particle configuration, and sends the new OXU particle SPC service configuration to the peer device so that the faulty protection service can be automatically restored.

7. The OSU granular link resource discovery method as described in claim 6, characterized in that, The control plane automatically routes and distributes low-level granular statistical process control (SPC) services based on customer needs or actual application scenario requirements. Before configuring the peer device according to the SPC services, the OSU granular link resource discovery method further includes: When an abnormality occurs in the control plane, the device single board re-reports the saved available node service status information and LMP TEST transmission messages to restore link resources.

8. An OSU granular link resource discovery device, characterized in that, The OSU granular link resource discovery device includes: a network management system, a device disk, and a control plane; wherein... The network management system is used to distribute PC services to the single disk of the device; The device single disk is used to report the service data corresponding to the PC service to the control plane; The control plane is used to determine whether to send a unique Link Management Protocol Test (LMP) message to the OSU flexible pipe based on the node status reported by the device's single board. The control plane is also used to receive LMP TEST parsing messages sent by the peer device, match the LMP TEST parsing messages with the LMP TEST sending messages, and obtain the service link resources that have been successfully discovered.

9. An OSU granular link resource discovery device, characterized in that, The OSU granular link resource discovery device includes: a memory, a processor, and an OSU granular link resource discovery program stored in the memory and executable on the processor, wherein the OSU granular link resource discovery program is configured to implement the steps of the OSU granular link resource discovery method as described in any one of claims 1 to 7.

10. A storage medium, characterized in that, The storage medium stores an OSU granular link resource discovery program, which, when executed by a processor, implements the steps of the OSU granular link resource discovery method as described in any one of claims 1 to 7.

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