WO2024001228A1

WO2024001228A1 - Network protection method and apparatus, and node, system and storage medium

Info

Publication number: WO2024001228A1
Application number: PCT/CN2023/077281
Authority: WO
Inventors: 杨三威
Original assignee: 中兴通讯股份有限公司
Priority date: 2022-06-30
Filing date: 2023-02-21
Publication date: 2024-01-04
Also published as: CN117376098A

Abstract

Provided in the present application are a network protection method and apparatus, and a node, a system and a storage medium. The method is applied to the current node, wherein there are at least two nodes before the current node, and the current node is connected to the last node among the at least two nodes by means of an operation channel and a protection channel. The method comprises: the current node acquiring defect processing times respectively corresponding to an operation channel and a protection channel; and processing defects in the corresponding channels according to the defect processing times, so that the defect is not generated in the operation channel of the current node earlier than in the protection channel, and the defect does not disappear from the protection channel of the current node earlier than from the operation channel.

Description

Network protection method, device, node, system and storage medium

Technical field

This application relates to the field of network management, such as network protection methods, devices, nodes, systems and storage media.

Background technique

With the rapid growth of network traffic, the requirements for network survivability are getting higher and higher. Network protection is one of the ways to quickly achieve network survivability when network defects occur. Sub-network Connection Protection (SNCP) was developed under this background. SNCP is a dedicated protection mechanism that can use SNCP for cascading protection to achieve business recovery in the event of multiple defects. . However, the traditional network protection method may have the following technical problems: when a defect occurs in the network, the corresponding communication node will perform channel switching, and the switching of the communication node channel may trigger the switching of downstream nodes, causing a defect Multiple switching occurs, which makes the switching time longer and cannot meet customer needs.

Contents of the invention

This application provides network protection methods, devices, nodes, systems and storage media.

In a first aspect, this application provides a network protection method, which is applied to a current node. The current node includes at least two nodes before it. The current node is connected to the last node among the at least two nodes through a working channel and a protection channel. The methods include:

The current node obtains the defect processing time corresponding to the working channel and the protection channel respectively; processes the defects in the corresponding channel according to the defect processing time, so that the working channel of the current node does not generate the defect earlier than the protection channel, and the current node The node's protection channel disappears from the defect no earlier than the working channel.

In a second aspect, this application provides a network protection device integrated in a current node, which includes at least two nodes before the current node, and is connected to the last node among the at least two nodes through a working channel and a protection channel, The device includes:

The acquisition module is configured to obtain the defect processing time corresponding to the working channel and the protection channel respectively; the processing module is configured to process the defects in the corresponding channel according to the defect processing time, so that the working channel of the current node is not earlier than the protection channel The defect occurs, and the protection channel of the current node disappears the defect no earlier than the working channel.

In a third aspect, this application provides a network node, including a memory and a processor, where the memory A computer program is stored, and when the processor executes the computer program, the above network protection method is implemented.

In a fourth aspect, this application provides a network protection system, including a current node and at least two nodes located before the current node, and the current node is connected to the last node among the at least two nodes through a working channel and a protection channel; The current node is set to obtain the defect processing time corresponding to the working channel and the protection channel respectively; the current node is also set to process the defects in the corresponding channel according to the defect processing time, so that the working channel of the current node is not early The defect occurs in the protection channel, and the protection channel of the current node disappears the defect no earlier than the working channel.

In a fifth aspect, the present application provides a storage medium that stores a computer program. When the computer program is executed by a processor, the above-mentioned network protection method is implemented.

Description of drawings

Figure 1 is a system architecture diagram applicable to a network protection method provided by an embodiment of the present application;

Figure 2 is a schematic structural diagram of a network provided by an embodiment of the present application;

Figure 3 is a schematic flow chart of a network protection method provided by an embodiment of the present application;

Figure 4 is a schematic structural diagram of another network provided by an embodiment of the present application;

Figure 5 is a schematic diagram of the principle of a network protection method provided by an embodiment of the present application;

Figure 6 is a schematic structural diagram of another network provided by an embodiment of the present application;

Figure 7 is a schematic principle diagram of another network protection method provided by an embodiment of the present application;

Figure 8 is a schematic structural diagram of another network provided by an embodiment of the present application;

Figure 9 is a schematic diagram of the principle of yet another network protection method provided by an embodiment of the present application;

Figure 10 is a schematic structural diagram of a network protection device provided by an embodiment of the present application;

Figure 11 is a schematic structural diagram of a network node provided by an embodiment of the present application.

Detailed ways

Figure 1 is a system architecture diagram applicable to a network protection method provided by an embodiment of the present application. As shown in Figure 1, the system may include a current node 101, which includes at least two nodes 102 before the current node 101. The current node 101 is connected to the last node of the at least two nodes 102 through a working channel and a protection channel. Among them, at least two nodes 102 can also be connected through a working channel and a protection channel. The working channel and the protection channel are used for the transmission of protected normal service signals, that is, when the working channel is defective, the service is switched from the working channel. to the protection channel to achieve normal transmission of business signals.

In the process of research and practice of traditional technology, when there is a defect in the channel between the two nodes 102 upstream of the current node 101 and channel switching occurs, due to the different lengths of the optical fibers of the working channel and the protection channel, the different channels of each node Depending on the status of the software and hardware, the order in which defects are detected and processed by the working channel and protection channel of the current node 101 may be different. The channel switching between the two upstream nodes 102 may trigger the channel switching of the current node 101. Switching services from the working channel to the protection channel causes the switching of the upstream protection group to cause the switching of the downstream protection group in the network. As shown in Figure 2, the network may include head node a, intermediate node 1, intermediate node 2, intermediate node 3 and tail node z. In the case of multiple protection connections, intermediate node 1, intermediate node 3 and tail node z Configured to use non-intrusively monitored Subnetwork Connection protection (SNC/N), which can detect defects in the first, second and third working channels or protection channels in the network respectively To protect. For the scenario shown in Figure 2, if the working channel at the second location is defective, the working channel and protection channel of intermediate node 3 will be switched. That is, intermediate node 3 switches the service at the second location from the working channel to the protection channel. channel, since the fiber lengths and software and hardware processing timings of the working channel and protection channel of tail node z are usually not strictly consistent, the working channel and protection channel of tail node z detect the occurrence and disappearance of defects first and then, so the intermediate node The channel switching of 3 may also cause the working channel and protection channel of tail node z to be switched. Similarly, for the scenario shown in Figure 2, if the first channel is defective, the channel switching of intermediate node 1 may also trigger the channel switching of intermediate node 3 and the tail node. In short, as the number of network cascade protection increases, upstream protection group switching may cause downstream protection groups to also switch, making the switching time longer and unable to meet customer needs. To this end, the embodiments of the present application aim to solve the above-mentioned technical problems and prevent the upstream protection group switching from causing the downstream protection group to also switch, thereby shortening the overall channel switching time.

The embodiments of the present application will be described below in conjunction with the accompanying drawings.

The execution subject of the following method embodiments may be a network protection device, and the device may be implemented as the above-mentioned current node through software, hardware, or a combination of software and hardware. The following method embodiments are described by taking the execution subject being the current node as an example (that is, the following method embodiments are applied to the current node).

Figure 3 is a schematic flowchart of a network protection method provided by an embodiment of the present application. The method may include:

S301. The current node obtains the defect processing time corresponding to the working channel and the protection channel respectively.

S302. Process the defects in the corresponding channel according to the defect processing time, so that the working channel of the current node does not generate the defect earlier than the protection channel, and the protection channel of the current node disappears the defect not earlier than the working channel. .

For the upstream protection group, the working channel and protection channel of the current node can be considered as the downstream protection group. In this embodiment, the working channel and the protection channel are respectively configured with corresponding defect processing times. When the upstream protection group of the current node is switched, a defect is detected in both the working channel and the protection channel of the current node. In the trap scenario, the defects in the working channel are processed through the defect processing time configured in advance for the working channel, so that the working channel of the current node does not produce the above defects earlier than the protection channel, even if the working channel and protection channel of the current node detect the defects. The time is basically consistent, and the defects in the protection channel are processed through the defect processing time configured in advance for the protection channel, so that the protection channel of the current node disappears no earlier than the working channel, even if the working channel and protection channel of the current node detect The time when the defect disappears is basically consistent, which can avoid the downstream protection group switching caused by the upstream protection group switching. In other words, for defects in the network, only the protection group where the defect is located will be switched to avoid the downstream protection group switching due to the same Defects are switched and the switching time is shortened.

Taking the scenario shown in Figure 2 as an example, there is a defect in the second working channel in the network. Through the processing of S301-S302, only the channel switching of intermediate node 3 will be triggered, and the downstream protection group such as tail node z will not be triggered. channel switching. Similarly, there is a defect in the first working channel in the network. Through the processing of S301-S302, only the channel switching of intermediate node 1 will be triggered, and the channel switching of downstream protection groups such as intermediate node 3 and tail node z will not be triggered. .

The above defects can be signal degradation (Signal Degrade, SD) or signal failure (Signal Failure, SF).

The current node can be configured as SNC/N, Inherently monitored Subnetwork Connection Crotection (SNC/I), or SNCP with Sublayer monitoring (SNC/S). This embodiment There is no restriction on the implementation method of defect status monitoring of the current node.

The above defect processing time supports the configuration function, that is, the above defect processing time can be configured through the following process:

Display the channel configuration interface; wherein the channel configuration interface includes a first configuration item and a second configuration item. The first configuration item is used to configure the defect processing time for processing on the working channel, and the second configuration item is used to configure the defect processing time for the working channel. Configure the defect processing time for protection channel processing; configure the defect processing time corresponding to the working channel and the protection channel through the channel configuration interface.

That is to say, the defect processing time corresponding to the working channel and the protection channel can be pre-configured through the channel configuration interface. The defect processing time corresponding to the working channel can be determined based on the transmission delay characteristics. For example, you can refer to the delay characteristics of the optical fiber (100km transmission The allowable delay is 5ms). At the same time, the defect processing time corresponding to the working channel also needs to consider the channel switching performance triggered by the defects of the current node itself. When configuring the defect processing time corresponding to the protection channel, there is no need to consider the switching performance of the current node itself. Therefore, the defect processing time corresponding to the protection channel can be determined based on the transmission delay characteristics and the preset redundancy, that is, it can be longer than the actual transmission delay. Leave some redundancy. The network protection method provided by the embodiment of this application is to deal with defects in the working channel and protection channel of the current node based on the defect processing time corresponding to the working channel, and to protect the defect based on the defect processing time corresponding to the protection channel. The defects in the channel are processed so that the working channel of the current node does not produce the above defects earlier than the protection channel and the protection channel of the current node disappears the above defects not earlier than the working channel, thereby preventing the upstream protection group switching from triggering the downstream protection group switching and shortening the overall time. channel switching time to improve switching efficiency.

In one embodiment, the above S302 may include:

After the working channel of the current node detects a defect earlier than the protection channel, ignore the defect generated in the working channel within the first defect processing time, so that the working channel of the current node does not generate the defect earlier than the protection channel. Describe the defects.

Taking the scenario shown in Figure 4 as an example, the working channel of the current node (for example, the tail node z in Figure 4) is a short path, the protection channel is a long path, and the defect of the working channel at the second location causes intermediate node 3 When channel switching occurs, since the fiber lengths of the current node's working channel and protection channel and the processing timing of software and hardware are usually not strictly consistent, the working channel of the current node detects defects earlier than the protection channel. If corresponding measures are not taken, it will The channel switching of intermediate node 3 triggers the current node to switch services from the working channel to the protection channel, causing the same defect to cause multiple channel switchings, greatly increasing the channel switching time.

For this reason, in this embodiment, the working channel and the protection channel are pre-configured with corresponding defect processing time. As shown in Figure 5, after the working channel of the current node detects a defect earlier than the protection channel, the current node processes the first defect in Defects generated in the working channel are ignored within the time (ie, the defect ignoring time of the working channel shown in Figure 5), so that the working channel of the current node does not generate defects earlier than the protection channel. In this way, when the channel switching occurs at the intermediate node 3, the time when the current node's working channel and the protection channel generate defects can be basically consistent, so that the channel switching at the intermediate node 3 will not cause the channel switching at the tail node z, realizing the upstream In the case of protection group switching, the purpose of avoiding downstream protection group switching is to shorten the overall channel switching time and improve switching efficiency.

In this embodiment, since the working channel of the current node is a short path and the protection channel is a long path, the protection channel of the current node detects that the defect disappears later than the working channel. This situation will not trigger channel switching of the current node. Therefore, in In this scenario, only the defects in the working channel of the current node are processed through the first defect processing time, and there is no need to process the protection channel of the current node.

In this embodiment, when the current node's upstream protection group undergoes channel switching due to a defect in the channel, and the current node's working channel and protection channel are not synchronized to produce the above-mentioned defect, the current node's working channel is detected earlier than the protection channel. After detecting the above defects, the defects generated in the working channel are ignored within the first defect processing time, so that the working channel of the current node does not detect the defect earlier than the protection channel, thereby avoiding the failure of the downstream protection group that may be caused by the switching of the upstream protection group. Switch.

In one embodiment, the above S302 may include:

After the protection channel of the current node detects that the defect disappears earlier than the working channel, in the second defect The defect generated by the protection channel is continued to be maintained during the trap processing time, so that the protection channel of the current node disappears the defect no earlier than the working channel.

Taking the scenario shown in Figure 6 as an example, the working channel of the current node (for example, the tail node z in Figure 6) is a long path, and the protection channel is a short path. The defect of the working channel at the second location causes intermediate node 3 When a channel switching occurs, since the fiber lengths of the working channel and protection channel of the current node and the processing timing of software and hardware are usually not strictly consistent, the protection channel of the current node detects the defect disappears earlier than the protection channel. If corresponding measures are not taken, then It will trigger the current node to switch the service from the working channel to the protection channel, causing the same defect to cause multiple channel switching, greatly increasing the channel switching time.

For this reason, in this embodiment, the working channel and the protection channel are pre-configured with corresponding defect processing times. As shown in Figure 7, after the protection channel of the current node detects that the defect disappears earlier than the working channel, the current node detects the defect in the second defect processing time. The defects generated in the protection channel are continued to be maintained within the processing time (that is, the defect extension time of the protection channel shown in Figure 7), so that the protection channel of the current node disappears the above-mentioned defects no earlier than the working channel. In this way, when the channel switching occurs at the intermediate node 3, the time when the defects of the working channel and the protection channel of the current node disappear can be basically the same, so that the channel switching at the intermediate node 3 will not cause the channel switching at the tail node z, realizing the In the case of upstream protection group switching, the purpose of avoiding downstream protection group switching is to shorten the overall channel switching time and improve switching efficiency.

In this embodiment, since the working channel of the current node is a long path and the protection channel is a short path, the working channel of the current node detects a defect later than the protection channel. This situation will not trigger channel switching of the current node. Therefore, in this In this scenario, it is only necessary to process the defects in the protection channel through the second defect processing time after the protection channel detects the defect disappears earlier than the working channel. There is no need to process the working channel of the current node.

In this embodiment, when the upstream protection group of the current node is switched due to a defect in the channel, and the working channel and protection channel of the current node disappear out of synchronization, the protection channel of the current node is detected earlier than the working channel. After the above defects disappear, the above defects generated in the protection channel continue to be maintained during the second defect processing time, so that the protection channel of the current node disappears the above defects no earlier than the working channel, thereby avoiding the downstream protection group that may be caused by the switching of the upstream protection group. switching.

In one embodiment, the above S302 may include:

After the working channel of the current node detects the defect earlier than the protection channel, the defect generated in the working channel is ignored within the first defect processing time; and the protection channel of the current node detects the defect earlier than the working channel. After disappearing, continue to maintain the defect generated by the protection channel during the second defect processing time, so that the working channel of the current node does not generate the defect earlier than the protection channel, and the protection channel of the current node does not generate the defect earlier. The said defects disappear in the working channel. The first defect processing time is determined based on the transmission delay characteristics, and the second defect processing time is determined based on the transmission delay characteristics and the preset redundancy.

Taking the scenario shown in Figure 8 as an example, the working channel of the current node (for example, the tail node z in Figure 8) is a short path, the protection channel is a long path, and the working channel service is extended when the service is restored. At the second point When a defect in the working channel causes switching of intermediate node 3, since the fiber lengths of the current node's working channel and protection channel and the processing timing of software and hardware are usually not strictly consistent, the working channel of the current node detects the defect earlier than the protection channel. If not, If corresponding measures are taken, the channel switching of intermediate node 3 will trigger the current node to switch the service from the working channel to the protection channel. At the same time, due to the prolonged recovery time of the working channel service of the current node, the protection channel of the current node is detected earlier than the working channel. When the defect disappears, if corresponding measures are not taken, channel switching will be triggered again and the service will be switched back to the working channel, causing the same defect to trigger multiple channel switching, greatly increasing the channel switching time.

For this reason, in this embodiment, the working channel and the protection channel are pre-configured with corresponding defect processing times. As shown in Figure 9, after the working channel of the current node detects a defect earlier than the protection channel, the current node processes the first defect in The defects generated in the working channel are ignored within the time (i.e., the defect ignoring time of the working channel shown in Figure 9), and, after the protection channel of the current node detects that the defect disappears earlier than the working channel, in the second defect processing time (i.e., The defects generated in the protection channel are continued to be maintained within the defect extension time of the protection channel shown in Figure 9, so that the working channel of the current node does not produce the above defects earlier than the protection channel and the protection channel of the current node disappears not earlier than the working channel. defect. In this way, when a channel switching occurs at the intermediate node 3, the time when the defects occur and the time when the defects disappear in the working channel and the protection channel of the current node can be basically consistent, so that when the channel switching occurs at the intermediate node 3, it will not cause repeated channel failures at the tail node z. Switching achieves the purpose of avoiding downstream protection group switching when the upstream protection group switches, shortens the overall channel switching time, and improves switching efficiency.

The above embodiment only takes the current node as the tail node as an example for introduction. The current node may also be the intermediate node 3 in Figure 2. This embodiment does not limit the direction of the current node.

In this embodiment, when the upstream protection group of the current node is switched due to a defect in the channel, and the working channel and protection channel of the current node are not synchronized to produce the above defect, the working channel of the current node is detected earlier than the protection channel. After the above defects are detected, the defects generated in the working channel are ignored within the first defect time, so that the working channel of the current node does not detect the defect earlier than the protection channel, thereby avoiding the channel switching of the current node that may be caused by the upstream protection group switching. . Moreover, when the upstream protection group of the current node is switched due to a defect in the channel, and the working channel and protection channel of the current node disappear out of synchronization, the protection channel of the current node detects the disappearance of the above defect earlier than the working channel. After that, the above defects generated in the protection channel are continued to be maintained during the second defect processing time, so that the protection channel of the current node disappears the above defects no earlier than the working channel, thereby avoiding the channel switching of the current node that may be caused by the switching of the upstream protection group. This allows a defect to only trigger the protection group where the defect is located, without triggering downstream protection group switching, shortening channel switching time and improving service switching efficiency.

The working channel and the protection channel are relative concepts, that is, two defect processing times are set for the current node. The first defect processing time is used to process the working channel, and the second defect processing time is used to process the protection channel. After the current node triggers channel switching due to its own channel defect, that is, the original working channel becomes a protection channel, and the original protection channel becomes a working channel. After the upstream protection group is switched, defects can be detected in the switched channels of the current node. At this time, the new working channel can still be processed according to the first defect processing time, and the new protection channel can be processed according to the second defect processing time, so that the new working channel of the current node will not generate defects earlier than the new protection channel, and the new working channel of the current node will not be defective earlier than the new protection channel. The new protection channel disappears the defect no earlier than the new working channel.

Figure 10 is a schematic structural diagram of a network protection device provided by an embodiment of the present application. The device is integrated into the current node. There are at least two nodes before the current node. The current node and the last node among the at least two nodes pass through the working channel. Connected to the protection channel. As shown in Figure 10, the device may include: an acquisition module 1001 and a processing module 1002.

The acquisition module 1001 is configured to acquire the defect processing time corresponding to the working channel and the protection channel respectively; the processing module 1002 is configured to process the defects in the corresponding channel according to the defect processing time, so that the working channel of the current node is no earlier than the protection channel. The defect occurs, and the protection channel of the current node disappears the defect no earlier than the working channel.

The network protection device provided by the embodiment of the present application processes defects in the working channel and the protection channel of the current node based on the defect processing time corresponding to the working channel, and processes the protection based on the defect processing time corresponding to the protection channel. The defects in the channel are processed so that the working channel of the current node does not produce the above defects earlier than the protection channel and the protection channel of the current node disappears the above defects not earlier than the working channel, thereby preventing the upstream protection group switching from triggering the downstream protection group switching and shortening the overall time. channel switching time to improve switching efficiency.

Based on the above embodiment, the processing module 1002 is configured to ignore the defects generated in the working channel within the first defect processing time after the working channel of the current node detects a defect earlier than the protection channel, so that all The working channel of the current node produces the defect no earlier than the protection channel.

Based on the above embodiment, the processing module 1002 is configured to continue to maintain the defects generated by the protection channel during the second defect processing time after the protection channel of the current node detects that the defect disappears earlier than the working channel, So that the protection channel of the current node disappears the defect no earlier than the working channel.

Based on the above embodiment, the processing module 1002 is configured to ignore the defect generated in the working channel within the first defect processing time after the working channel of the current node detects a defect earlier than the protection channel; and in the current node After the protection channel of the node detects that the defect disappears earlier than the working channel, it continues to maintain the defect generated by the protection channel during the second defect processing time, so that the working channel of the current node does not occur earlier than the protection channel. The defect is that the protection channel of the current node is not early The said defects disappear in the working channel.

Based on the above embodiment, the first defect processing time is determined based on transmission delay characteristics.

Based on the above embodiment, the second defect processing time is determined based on the transmission delay characteristics and the preset redundancy amount.

Based on the above embodiment, the defect processing time is configured through the following process:

Display the channel configuration interface; wherein the channel configuration interface includes a first configuration item corresponding to the working channel and a second configuration item corresponding to the protection channel, and the first configuration item is used to configure the defect processing time for processing the working channel, The second configuration item is used to configure the defect processing time for protection channel processing; configure the defect processing time corresponding to the working channel and the protection channel through the channel configuration interface.

In one embodiment, a current node is provided, and its internal structure diagram can be shown in Figure 11. The current node includes a processor, memory, network interface, and database connected through a system bus. Wherein, the processor of the current node is configured to provide computing and control capabilities. The memory of the current node includes non-volatile storage media and internal memory. The non-volatile storage medium stores operating systems, computer programs and databases. This internal memory provides an environment for the execution of operating systems and computer programs in non-volatile storage media. The database of the current node is used to store data generated during the network protection process. The network interface of the current node is set to communicate with an external terminal through a network connection. The computer program, when executed by the processor, implements a network protection method.

The structure shown in Figure 11 is only a block diagram of a partial structure related to the solution of the present application, and does not constitute a limitation on the current node on which the solution of the present application is applied. The current node may include more or more than those shown in the figure. Have fewer parts, or combine some parts, or have different parts arrangements.

In one embodiment, a network node is provided, including a memory and a processor. A computer program is stored in the memory. When the processor executes the computer program, it implements the following steps:

In one embodiment, a network protection system as shown in Figure 1 is provided. The system includes a current node 101 and at least two nodes 102 located before the current node 101. The current node 101 is connected to at least two nodes 102. The last node in the node 102 is connected through the working channel and the protection channel; the current node 101 is configured to obtain the defect processing time corresponding to the working channel and the protection channel respectively; the current node 101 is also configured to process the corresponding defect processing time according to the defect processing time. Defects in the channel, so that the working channel of the current node 101 does not produce the defect earlier than the protection channel, and the protection channel of the current node 101 disappears the defect not earlier than the working channel.

In one embodiment, a storage medium is provided, the storage medium stores a computer program, and when the computer program is executed by a processor, the following is achieved:

The network protection devices, nodes, systems and storage media provided in the above embodiments can execute the network protection method provided by any embodiment of the present application, and have corresponding functional modules and beneficial effects for executing the method. For technical details that are not described in detail in the above embodiments, please refer to the network protection method provided by any embodiment of this application.

The above are only exemplary embodiments of the present application.

Generally speaking, the various embodiments of the present application may be implemented in hardware or special purpose circuitry, software, logic, or any combination thereof. For example, some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software that may be executed by a controller, microprocessor, or other computing device, although the application is not limited thereto.

Embodiments of the present application may be implemented by a data processor of the mobile device executing computer program instructions, for example in a processor entity, or by hardware, or by a combination of software and hardware. Computer program instructions may be assembly instructions, Instruction Set Architecture (ISA) instructions, machine instructions, machine-related instructions, microcode, firmware instructions, state setting data, or written in any combination of one or more programming languages source code or object code.

Any block diagram of a logic flow in the figures of this application may represent program steps, or may represent interconnected logic circuits, modules, and functions, or may represent a combination of program steps and logic circuits, modules, and functions. Computer programs can be stored on memory. The memory may be of any type suitable for the local technical environment and may be implemented using any suitable data storage technology, such as but not limited to Read-Only Memory (ROM), Random Access Memory (RAM), optical Storage devices and systems (Digital Video Disc (DVD) or Compact Disc (CD)), etc. Computer-readable media may include non-transitory storage media. The data processor can be any type suitable for the local technical environment, such as but not limited to a general-purpose computer, a special-purpose computer, a microprocessor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC) ), programmable logic devices (Field Programmable Gate Array, FGPA) and processors based on multi-core processor architecture.

Claims

A network protection method, applied to a current node, which includes at least two nodes before it, and the current node is connected to the last node among the at least two nodes through a working channel and a protection channel, the method includes:

The current node obtains the defect processing time corresponding to the working channel and the protection channel respectively;

The defects in the corresponding channels are processed according to the defect processing time, so that the working channel of the current node does not generate the defect earlier than the protection channel, and the protection channel of the current node does not generate the defect earlier than the protection channel. The working channel disappears the said defects.
The method according to claim 1, wherein processing defects in corresponding channels according to the defect processing time so that the working channel of the current node does not generate the defect earlier than the protection channel includes: :

After the working channel of the current node detects a defect earlier than the protection channel, ignore the defect generated in the working channel within the first defect processing time, so that the working channel of the current node The channel does not produce the defect earlier than the guard channel.
The method according to claim 1, wherein the defect in the corresponding channel is processed according to the defect processing time so that the protection channel of the current node disappears the defect no earlier than the working channel, including :

After the protection channel of the current node detects that the defect disappears earlier than the working channel, continue to maintain the defect generated by the protection channel during the second defect processing time, so that the current node The protection channel of the node disappears the defect no earlier than the working channel.
The method according to claim 1, wherein the defect in the corresponding channel is processed according to the defect processing time so that the working channel of the current node does not generate the defect earlier than the protection channel, so The protection channel of the current node disappears the defect no earlier than the working channel, including:

After the working channel of the current node detects a defect earlier than the protection channel, ignore the defect generated in the working channel within the first defect processing time; and the protection of the current node After the channel detects that the defect disappears earlier than the working channel, the defect generated by the protection channel continues to be maintained during the second defect processing time, so that the working channel of the current node is not earlier than the The protection channel generates the defect, and the protection channel of the current node disappears the defect no earlier than the working channel.
The method according to claim 2 or 4, wherein the first defect processing time is determined based on transmission delay characteristics.
The method of claim 3 or 4, wherein the second defect processing time is based on transmission The transmission delay characteristics and preset redundancy are determined.
The method according to claim 1, wherein the defect processing time is configured through the following process:

Display a channel configuration interface; wherein the channel configuration interface includes a first configuration item and a second configuration item. The first configuration item is used to configure the defect processing time for processing the working channel, and the second configuration item Used to configure the defect processing time for the protection channel processing;

The defect processing time corresponding to the working channel and the protection channel is configured through the channel configuration interface.
A network protection device integrated in a current node, which includes at least two nodes before the current node. The current node is connected to the last node among the at least two nodes through a working channel and a protection channel. The device includes:

An acquisition module configured to acquire the defect processing time corresponding to the working channel and the protection channel respectively;

A processing module configured to process defects in the corresponding channel according to the defect processing time, so that the working channel of the current node does not generate the defect earlier than the protection channel, and the protection channel of the current node The defect disappears no earlier than the working channel.
A network node includes a memory and a processor. The memory stores a computer program. When the processor executes the computer program, the method of any one of claims 1-7 is implemented.
A network protection system includes a current node and at least two nodes located before the current node, and the current node is connected to the last node among the at least two nodes through a working channel and a protection channel;

The current node is configured to obtain the defect processing time corresponding to the working channel and the protection channel respectively;

The current node is also configured to process defects in the corresponding channel according to the defect processing time, so that the working channel of the current node does not generate the defect earlier than the protection channel, and the defect of the current node is The guard channel disappears the defect no earlier than the working channel.
A storage medium, the storage medium stores a computer program, and when the computer program is executed by a processor, the method of any one of claims 1-7 is implemented.