Grayscale switching method, device, communication equipment and storage medium for data center interconnection links

Abstract

The present application relates to a grayscale switching method, device, communication equipment and storage medium for interconnection links of data centers, and relates to the field of communication technology. It can effectively reduce the communication risks caused by changes in network configuration to interconnection links. The method includes: in multiple interconnected data centers, initializing some users as grayscale users; changing the network configuration of the interconnection link of the grayscale user according to the grayscale network configuration, applying the network configuration change to the interconnection link of the grayscale user, and obtaining the service status monitoring result; if the service status monitoring result meets the grayscale amplification condition, then amplifying the grayscale user in the multiple interconnected data centers, and returning to execute the step of changing the network configuration of the interconnection link of the grayscale user according to the grayscale network configuration, applying the network configuration change to the interconnection link of the grayscale user, and obtaining the service status monitoring result; if the service status monitoring result does not meet the grayscale amplification condition, then restoring the network configuration of the grayscale user.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a grayscale switching method, apparatus, communication equipment, computer-readable storage medium, and computer program product for a data center interconnection link. Background Art

[0002] With the advancement of communications technology, the operation of a single data center often fails to meet the diverse business needs of users. The use and interconnection of multiple data centers is becoming increasingly common. In practice, when the underlying network undergoes changes, the configuration of the interconnection links between multiple data centers often changes accordingly. Directly applying these modified interconnection links to all users can introduce unpredictable risks.

[0003] In related technologies, the interconnected links with configuration changes are mainly tested through closed test environments or non-realistic simulation environments. However, the test results obtained in this way are less accurate and it is difficult to effectively avoid the communication risks caused by network configuration changes to the interconnected links. Summary of the Invention

[0004] Based on this, it is necessary to provide a grayscale switching method, device, communication equipment and computer-readable storage medium for data center interconnection links to address the above technical problems.

[0005] In a first aspect, the present application provides a grayscale switching method for a data center interconnection link, comprising:

[0006] In multiple interconnected data centers, the initial users are grayscale users;

[0007] Changing the network configuration of the interconnection link of the grayscale user according to the grayscale network configuration, applying the interconnection link with the changed network configuration to the grayscale user, and obtaining corresponding service status monitoring results; the service status monitoring results include network status monitoring results and / or link status monitoring results;

[0008] If the service status monitoring result satisfies the grayscale expansion condition, the grayscale user is expanded in the interconnected multiple data centers, and the steps of changing the network configuration of the interconnection link of the grayscale user according to the grayscale network configuration are returned to, and the interconnection link with the changed network configuration is applied to the grayscale user, and the corresponding service status monitoring result is obtained;

[0009] If the service status monitoring result does not meet the grayscale expansion condition, the network configuration of the grayscale user is restored.

[0010] In one embodiment, obtaining the corresponding service status monitoring result includes:

[0011] Obtaining, based on the network monitoring data, network fault information corresponding to the network, as well as delay information and a first data throughput of a target link in the network;

[0012] determining a network status monitoring result according to the network fault information, the delay information, and the first data throughput;

[0013] A service status monitoring result is obtained according to the network status monitoring result.

[0014] In one embodiment, obtaining the corresponding service status monitoring result includes:

[0015] Determining, based on network monitoring data, round-trip delay information, packet loss information, and a second data throughput of the interconnected link of the network configuration change;

[0016] determining a link status monitoring result of the interconnected link according to the round-trip delay information, the packet loss information, and the second data throughput;

[0017] A service status monitoring result is obtained according to the link status monitoring result.

[0018] In one embodiment, when the service status monitoring result includes a network status monitoring result and a link status monitoring result, after obtaining the corresponding service status monitoring result, the method further includes:

[0019] Determining a service status evaluation value according to the network status monitoring result and the link status monitoring result, and respective weights of the network status monitoring result and the link status monitoring result;

[0020] If the service status evaluation value is greater than or equal to the threshold, determining that the service status monitoring result meets the grayscale amplification condition;

[0021] If the service status evaluation value is less than the threshold, it is determined that the service status monitoring result does not meet the grayscale expansion condition.

[0022] In one embodiment, determining the service status evaluation value according to the network status monitoring result and the link status monitoring result, and the weights of the network status monitoring result and the link status monitoring result, includes:

[0023] During the grayscale test, the network status monitoring results and link status monitoring results of each time unit experienced are statistically analyzed according to the weight and in chronological order to obtain the service status evaluation value; the time unit is the time unit divided during the grayscale test.

[0024] In one embodiment, the service status monitoring result also includes abnormal event monitoring results;

[0025] After obtaining the corresponding service status monitoring result, the method further includes:

[0026] If the abnormal event monitoring result indicates that a preset abnormal event occurs in the network, it is determined that the service status monitoring result does not meet the grayscale expansion condition.

[0027] In one embodiment, the grayscale user is determined by the following steps:

[0028] In the interconnected multiple data centers, determining the degree of acceptance of each user for changing the interconnected link network configuration based on the network quality requirements and traffic volume of each user;

[0029] The grayscale user is determined from the plurality of users according to the acceptability of each user.

[0030] In a second aspect, the present application further provides a grayscale switching device for a data center interconnection link, comprising:

[0031] The initialization module is used to initialize some users in multiple interconnected data centers as grayscale users;

[0032] A monitoring result acquisition module is configured to change the network configuration of the interconnection link of the grayscale user according to the grayscale network configuration, apply the interconnection link with the network configuration change to the grayscale user, and obtain corresponding service status monitoring results; the service status monitoring results include network status monitoring results and / or link status monitoring results;

[0033] a grayscale expansion module configured to, if the service status monitoring result satisfies the grayscale expansion condition, expand the grayscale user in multiple interconnected data centers, return to the steps of changing the network configuration of the grayscale user's interconnection link according to the grayscale network configuration, apply the changed network configuration to the grayscale user's interconnection link, and obtain the corresponding service status monitoring result;

[0034] A configuration restoration module is used to restore the network configuration of the grayscale user if the service status monitoring result does not meet the grayscale expansion condition.

[0035] In a third aspect, the present application further provides a communication device, comprising a memory and a processor, wherein the memory stores a computer program, and when the processor executes the computer program, the following steps are implemented:

[0036] In multiple interconnected data centers, the initial users are grayscale users;

[0037] Changing the network configuration of the interconnection link of the grayscale user according to the grayscale network configuration, applying the interconnection link with the changed network configuration to the grayscale user, and obtaining corresponding service status monitoring results; the service status monitoring results include network status monitoring results and / or link status monitoring results;

[0038] If the service status monitoring result satisfies the grayscale expansion condition, the grayscale user is expanded in the interconnected multiple data centers, and the steps of changing the network configuration of the interconnection link of the grayscale user according to the grayscale network configuration are returned to, and the interconnection link with the changed network configuration is applied to the grayscale user, and the corresponding service status monitoring result is obtained;

[0039] If the service status monitoring result does not meet the grayscale expansion condition, the network configuration of the grayscale user is restored.

[0040] In a fourth aspect, the present application further provides a computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the following steps are implemented:

[0041] In multiple interconnected data centers, the initial users are grayscale users;

[0042] Changing the network configuration of the interconnection link of the grayscale user according to the grayscale network configuration, applying the interconnection link with the changed network configuration to the grayscale user, and obtaining corresponding service status monitoring results; the service status monitoring results include network status monitoring results and / or link status monitoring results;

[0043] If the service status monitoring result satisfies the grayscale expansion condition, the grayscale user is expanded in the interconnected multiple data centers, and the steps of changing the network configuration of the interconnection link of the grayscale user according to the grayscale network configuration are returned to, and the interconnection link with the changed network configuration is applied to the grayscale user, and the corresponding service status monitoring result is obtained;

[0044] If the service status monitoring result does not meet the grayscale expansion condition, the network configuration of the grayscale user is restored.

[0045] The grayscale switching method, apparatus, communication equipment, and computer-readable storage medium for the above-mentioned data center interconnection link can first initialize some users as grayscale users in multiple interconnected data centers, then change the network configuration of the grayscale user's interconnection link according to the grayscale network configuration, apply the interconnection link with the changed network configuration to the grayscale user, and obtain corresponding service status monitoring results, which include network status monitoring results and / or link status monitoring results; if the service status monitoring results meet the grayscale expansion conditions, then expand the grayscale user in the multiple interconnected data centers, and return to the steps of changing the network configuration of the grayscale user's interconnection link according to the grayscale network configuration, applying the interconnection link with the changed network configuration to the grayscale user, and obtaining the corresponding service status monitoring results; if the service status monitoring results do not meet the grayscale expansion conditions, then restore the network configuration of the grayscale user. In the present application, on the one hand, by changing the network configuration of the interconnection link of the grayscale user according to the grayscale network configuration, and applying the interconnection link with the changed network configuration to the grayscale user, the adjustment effect of the network configuration can be accurately and effectively tested without affecting all users, thereby ensuring the accuracy and reliability of the test results; on the other hand, by continuing to expand the grayscale users when the grayscale expansion conditions are met, and restoring the network configuration of the grayscale users when the grayscale expansion conditions are not met, the trial scope of the grayscale network configuration can be gradually expanded while ensuring the normal service status; thereby, the risks brought by network services to the interconnection links of the data center can be effectively reduced, and the adjustment of the data center interconnection services can be controlled throughout the process. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following briefly introduces the drawings required for use in the embodiments of the present application or related technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying any creative work.

[0047] Figure 1 is a schematic diagram of a data center interconnection in one embodiment;

[0048] Figure 2 1 is a flow chart of a grayscale switching method for a data center interconnect link according to an embodiment;

[0049] Figure 3 A flowchart of a step for obtaining a service status monitoring result in one embodiment;

[0050] Figure 4 A flowchart of another step of obtaining service status monitoring results in one embodiment;

[0051] Figure 5 1 is a flow chart of another method for grayscale switching of a data center interconnect link in one embodiment;

[0052] Figure 6 This is a structural block diagram of a grayscale switching device for a data center interconnection link in one embodiment;

[0053] Figure 7 The figure is a diagram of the internal structure of a communication device in one embodiment. DETAILED DESCRIPTION

[0054] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0055] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with relevant regulations.

[0056] In order to enable those skilled in the art to better understand this application, the relevant technologies are first introduced below.

[0057] With the advancement of communications technology, single data center operations often fail to meet diverse user service needs, such as remote disaster recovery and cross-regional operations. The coordinated operation and interconnection of multiple data centers has become an urgent need and is gradually gaining widespread adoption. For data center interconnection, technologies such as SRv6 TE (Segment Routing IPv6 Traffic Engineering) and VxLAN (Virtual Extended Local Area Network) can be used to carry overlay tunnels, providing users with cross-data center interconnection links. SRv6 TE is a traffic engineering technology based on SRv6. It uses Segment Routing Identifier (SID) lists to specify paths, enabling flexible scheduling and optimization of network traffic, improving network transmission efficiency and reliability. VxLAN is a network virtualization technology that encapsulates traffic and extends it to Layer 3 gateways to achieve cross-regional Layer 2 interconnection, supporting large-scale deployments and improving network flexibility and scalability. Overlay tunnels are a network virtualization technology that uses encapsulation protocols to construct logical networks on top of the underlying network, enabling cross-network Layer 2 communication and enhancing network flexibility and scalability.

[0058] The data center interconnection link is obtained through the related interconnection link construction technology. The data center interconnection link is carried by the underlying network path. When the network changes and adjustments occur (such as the expansion and transformation of the underlying network, routing adjustment, etc.), the related network configuration of the data center interconnection link also needs to be changed accordingly. For example, Figure 1 As shown in the figure, when the underlying network physical path is changed from ABD to ACD, the configuration of the upper-layer DCI links will also be changed. If a complete underlying path switch is directly implemented and the configuration of all DCI links is adjusted, it will introduce unpredictable global deployment risks and affect users' cross-DC interconnect services.

[0059] In this regard, relevant technologies mainly test interconnected links with configuration changes in closed test environments or non-realistic simulation environments. However, in practice, it is found that the test results obtained in this way are less accurate, and it is difficult to effectively avoid the communication risks caused by underlying network changes to interconnected links.

[0060] Based on this, the present application provides a grayscale switching method, device, communication equipment, computer-readable storage medium and computer program product for data center interconnection links, which can effectively reduce the risks brought by network services to data center interconnection links and ensure that the adjustment of data center interconnection services is controllable throughout the process.

[0061] In one embodiment, Figure 2 As shown, a method for grayscale switching of data center interconnect links is provided. This embodiment uses the method applied to a server as an example. It is understood that the method can also be applied to a system including a terminal and a server, and implemented through interaction between the terminal and the server. In some examples, the server can be an independent physical server, a server cluster or distributed system composed of multiple physical servers, or a cloud server providing cloud computing services.

[0062] In this embodiment, the method includes the following steps:

[0063] Step S201: In a plurality of interconnected data centers, some users are initialized as grayscale users.

[0064] The term "multiple data centers" may refer to two or more data centers, and interconnected data centers may be understood as data centers interconnected via interconnection links. For example, data center 1 and data center 2 may be interconnected via an interconnection link, and data center 2, data center 3, and data center 4 may be interconnected via an interconnection link.

[0065] In this embodiment, users of multiple interconnected data centers can be identified. Users of multiple interconnected data centers can be understood as users who utilize multiple interconnected data centers to conduct data center interconnection services. For example, a user can store servers or deploy IT system services in multiple data centers. Interconnection links between data centers can then be used to enable data exchange between servers or system services deployed in different data centers (e.g., synchronizing data between servers in different data centers).

[0066] In a specific implementation, multiple data centers can be interconnected via a network and can simultaneously carry data center service interconnection for multiple users. To this end, in this step, some users from among the multiple interconnected data centers that utilize the data centers for service interconnection can be initialized as grayscale users. Grayscale users are the first users to use the interconnection link for which the network configuration has been changed. It is important to emphasize that after a user is designated as a grayscale user, a notification regarding the network configuration change for the interconnection link can be sent to the user to clearly inform them that the network configuration of the interconnection link they use will be adjusted. If the user agrees, the user can be designated as a grayscale user and subsequent processing can continue. If the user declines, the user is not designated as a grayscale user.

[0067] It is understood that when grayscale users are initially identified in this embodiment, some (i.e., not all) of the users are identified as grayscale users. For other users not identified as grayscale users, the original network configuration can continue to be used, and data center services can be interconnected through interconnection links using the original network configuration.

[0068] Step S202, change the network configuration of the grayscale user's interconnection link according to the grayscale network configuration, apply the interconnection link with the changed network configuration to the grayscale user, and obtain the corresponding service status monitoring result; the service status monitoring result includes the network status monitoring result and / or the link status monitoring result.

[0069] The grayscale network configuration may be a network configuration after a network change. For example, a corresponding new network configuration may be determined after the underlying network is expanded, restructured, routed, or topologically adjusted.

[0070] In practical applications, interconnect links depend on the underlying network and have corresponding network configurations. After determining the grayscale user, this step can modify the network configuration of the grayscale user's interconnect link based on the pre-acquired grayscale network configuration to obtain an interconnect link with a modified network configuration. In an exemplary embodiment, if the grayscale network configuration is a network tunnel type, the specified underlying network path can be modified for the selected grayscale user based on the network tunnel type on an interconnect routing device that supports data center interconnect services. For example, if the network tunnel type is L2VPN over SRv6 TE, the SRv6 TE path can be modified and switched on the specific routing device.

[0071] After obtaining the interconnection link with the network configuration change, the interconnection link for the grayscale user should be changed. That is, the grayscale user can subsequently use the interconnection link with the network configuration change to interconnect data center services. At the same time, service status monitoring can be performed during the process of grayscale users applying the interconnection link with the network configuration change to obtain service status monitoring results. For example, after modifying and switching the SRv6 TE path on the routing device, the traffic on the interconnection link with the message feature identification of the grayscale user can be increased to obtain subsequent monitoring results.

[0072] The service status monitoring results include at least one of network status monitoring results and link status monitoring results. The network status monitoring results may be obtained by monitoring the network status of the underlying network, and may reflect changes in network status after network changes and adjustments, as well as changes to the network configuration of overlay interconnection links. The link status monitoring results may be obtained by monitoring interconnection links with network configuration changes, and may reflect the impact of network configuration changes on data center interconnection services.

[0073] Step S203: If the service status monitoring result meets the grayscale expansion condition, the grayscale user is expanded in multiple interconnected data centers, and the network configuration of the interconnection link of the grayscale user is changed according to the grayscale network configuration, and the interconnection link with the changed network configuration is applied to the grayscale user, and the corresponding service status monitoring result is obtained.

[0074] Among them, the grayscale expansion conditions can be understood as the conditions that need to be met when allowing the grayscale user range to continue to expand. In some examples, the grayscale expansion conditions may include desired network status conditions and / or link status conditions. For example, if the service status monitoring result includes the network status monitoring result, the grayscale expansion conditions may include the network status condition. If the service status monitoring result includes the link status monitoring result, the grayscale expansion conditions may include the link status condition.

[0075] Since the service status monitoring results can characterize the impact of the current grayscale network configuration changes on the network status and / or link status, in this embodiment, it is possible to determine whether the service status monitoring results meet the grayscale expansion conditions, thereby determining whether it is appropriate to continue to expand the application scope of the grayscale network configuration in the network.

[0076] If it is determined that the service status monitoring results meet the grayscale expansion conditions, grayscale users can be further expanded in the multiple interconnected data centers, and the process returns to step S202. In some exemplary embodiments, the number of grayscale users to be expanded each time can be determined based on the total number of users in the multiple data centers and the expected number of expansions, where the expected number of expansions can be two or more. By expanding grayscale users in multiple stages, it is possible to avoid overly rapid adjustments to the network configuration of the interconnection links for all users, thereby reducing the impact of network changes on user data interconnection services.

[0077] It can be understood that this embodiment provides an innovative network configuration change strategy. On the one hand, by changing the network configuration of the interconnection link of the grayscale user according to the grayscale network configuration, and applying the interconnection link of the network configuration change to the grayscale user, it can allow the new network configuration or new network technology to be verified in the real network environment. By conducting a small-scale local live network test under real user conditions, it is possible to effectively evaluate the stability of the network configuration adjustment and the user experience without affecting the data interconnection service of all users, thereby ensuring the accuracy and reliability of the test results. On the other hand, by initializing some users as grayscale users in multiple interconnected data centers, and continuing to expand the grayscale users when the service status monitoring results meet the grayscale expansion conditions, it is possible to first conduct a small-scale use test of the adjusted network configuration in the real network environment to evaluate the performance and stability, and then gradually expand its trial scope. While avoiding the global risks brought by the network configuration change, it effectively ensures the stability and reliability of the network configuration change strategy. In this way, the unknown risks brought by the network configuration change can be effectively reduced.

[0078] Step S204: If the service status monitoring result does not meet the grayscale expansion condition, the network configuration of the grayscale user is restored.

[0079] In specific implementations, if the service status monitoring results determine that they do not meet the grayscale expansion conditions, the grayscale user's network configuration can be restored to achieve timely fault control. Subsequently, the grayscale switching operation on the interconnected link can be aborted, and after optimizing and repairing the underlying network defects, the grayscale switching method can be executed again.

[0080] It can be understood that in this embodiment, by gradually increasing the number of grayscale users (including initialized grayscale users and / or subsequently expanded grayscale users), the trial scope of the grayscale network configuration can be gradually expanded. When it is found that the service status monitoring results do not meet the grayscale expansion conditions, the network configuration is restored, thereby preventing the abnormalities caused by the grayscale network configuration from spreading in the interconnected links of all users, effectively controlling the explosion radius of potential defects, and allowing network operation and maintenance personnel to promptly discover and correct problems with the grayscale network configuration.

[0081] In some exemplary embodiments, the network configurations of all grayscale users may be restored. Alternatively, those skilled in the art may also choose to restore the number of grayscale users for which network configurations are restored according to actual circumstances, such as restoring the network configurations of some grayscale users.

[0082] In some embodiments, when restoring the network configuration of a grayscale user, the network configuration of the grayscale user's interconnection link can be restored (also called rolled back) to the network configuration of the interconnection link before the change based on the grayscale network configuration.

[0083] The grayscale switching method for data center interconnection links of this embodiment can first initialize some users as grayscale users in multiple interconnected data centers, then change the network configuration of the grayscale users' interconnection links according to the grayscale network configuration, apply the interconnection links with the changed network configuration to the grayscale users, and obtain corresponding service status monitoring results, which include network status monitoring results and / or link status monitoring results; if the service status monitoring results meet the grayscale expansion conditions, then expand the grayscale users in the multiple interconnected data centers, and return to the steps of changing the network configuration of the grayscale users' interconnection links according to the grayscale network configuration, applying the interconnection links with the changed network configuration to the grayscale users, and obtaining corresponding service status monitoring results; if the service status monitoring results do not meet the grayscale expansion conditions, then restore the network configuration of the grayscale users. Therefore, on the one hand, by changing the network configuration of the grayscale user's interconnection link according to the grayscale network configuration, and applying the interconnection link with the changed network configuration to the grayscale user, the adjustment effect of the network configuration can be accurately and effectively tested without affecting all users, thereby ensuring the accuracy and reliability of the test results; on the other hand, by continuing to expand the grayscale users when the grayscale expansion conditions are met, and restoring the network configuration of the grayscale users when the grayscale expansion conditions are not met, the trial scope of the grayscale network configuration can be gradually expanded while ensuring the normal service status; thereby, the risks brought by network service changes to the data center interconnection link can be effectively reduced, ensuring that the adjustment of the data center interconnection service is controllable throughout the process.

[0084] In an exemplary embodiment, Figure 3 As shown, in step S202, obtaining the corresponding service status monitoring result may include the following steps:

[0085] Step S301: Obtain network fault information corresponding to the network, as well as delay information and a first data throughput of a target link in the network according to network monitoring data.

[0086] In practical applications, network monitoring can be performed on the data center interconnection service to obtain relevant network monitoring data. The network monitoring data can be structured or unstructured data generated by monitoring and analyzing the network's operating status, traffic characteristics, equipment performance, etc. through technical means. In some exemplary embodiments, the network monitoring data may include one or more of the following monitoring indicators: bandwidth utilization, latency, jitter, and packet loss rate. In some embodiments, before and after changing the network configuration of the Grayscale user's interconnection link according to the Grayscale network configuration, the network monitoring service can continuously monitor and record the underlying network path status and / or interconnection link status to obtain network monitoring data.

[0087] Then, by analyzing the network monitoring data, the corresponding network fault information of the network, as well as the delay information and data throughput of the target link in the network can be obtained.

[0088] The network fault information may be information reflecting the network fault situation. For example, the network fault information may include one or more of the number of fault links, the time of fault occurrence, and the duration of the fault.

[0089] The target link may also be called a critical link, which can be understood as a link of key concern in the network. For example, the target link may be a link in the network that is directly or indirectly affected by a network configuration change. The target link may be one or more links.

[0090] The delay information of the target link may reflect the time delay experienced when data is transmitted from one end to the other end through the target link. For example, the delay information may be a specific delay time (eg, in milliseconds).

[0091] Data throughput can be understood as the amount of data transmitted per unit time, and can be used to measure data transmission efficiency. For ease of distinction, in this embodiment, the data throughput of the target link is referred to as the first data throughput, which can reflect the amount of data throughput of the target link per unit time.

[0092] Step S302: Determine a network status monitoring result according to the network fault information, the delay information, and the first data throughput.

[0093] In this step, the obtained network fault information, delay information and first data throughput may be integrated to identify the network status and obtain a network status monitoring result.

[0094] In some exemplary embodiments, starting from the network operation status, attention can be paid to the underlying network after the network configuration is adjusted and superimposed on the interconnected links. The target link performance change and the degree of compliance with the expected fault occurrence can be determined based on the network monitoring data, thereby obtaining a network status evaluation value, and determining the network status monitoring result based on the network status evaluation value. For example, the network status evaluation value can be determined in the following manner:

[0095]

[0096] in, is the network status evaluation value at time t, is the delay of the i-th target link at time t (unit can be ms), is the baseline delay threshold, is the number of failed links at time t, is the maximum acceptable number of failures, is the throughput of the i-th link at time t, is the maximum capacity of the i-th link, N is the number of target links, is the weight coefficient, satisfying relationship.

[0097] Step S303: Obtain service status monitoring results based on the network status monitoring results.

[0098] In some embodiments, the network status monitoring results can be determined as service status monitoring results, or the network status monitoring results can be analyzed and processed, and the analysis and processing results can be used as service status monitoring results. Of course, the network status monitoring results can also be combined with other information for analysis to obtain service status monitoring results.

[0099] In this embodiment, the network status monitoring results are determined based on the network fault information, delay information and the first data throughput, and the service status monitoring results are obtained based on the network status monitoring results. The network configuration changes and the interconnected links of the network configuration changes can be comprehensively characterized through multi-dimensional indicators, and the impact on the underlying network status can be effectively characterized. At the same time, the network status monitoring results are determined through multiple quantifiable indicators, effectively improving the reliability and accuracy of the service status monitoring results.

[0100] In an exemplary embodiment, Figure 4 As shown, in step S202, obtaining the corresponding service status monitoring result may include the following steps:

[0101] Step S401: Determine, based on network monitoring data, round-trip delay information, packet loss information, and second data throughput of the interconnection link whose network configuration has been changed.

[0102] In this step, by analyzing the network monitoring data, the round-trip delay information, packet loss information, and data throughput of the interconnected links where the network configuration has changed can be obtained.

[0103] The round-trip delay information may reflect the total time required for data to be transmitted from the sender, transmitted through the interconnected link to the receiver, and then returned to the sender. For example, the round-trip delay information may be a specific round-trip delay (RTT).

[0104] Packet loss information may reflect a situation where a data packet (such as a data packet) fails to reach the receiving end as expected during data transmission over an interconnected link. In one example, the packet loss information may be a specific number of lost packets or a statistical value of the number of lost packets, such as a packet loss rate.

[0105] The data throughput of the interconnection link can be understood as the amount of data transmitted by the interconnection link in unit time. For the sake of distinction, in this embodiment, the data throughput of the interconnection link is referred to as the second data throughput.

[0106] Step S402: Determine a link status monitoring result of the interconnected link according to the round-trip delay information, the packet loss information, and the second data throughput.

[0107] In this step, the obtained round-trip delay information, packet loss information, and second data throughput may be integrated to identify the link status of the interconnection link and obtain a link status monitoring result of the interconnection link.

[0108] In an exemplary embodiment, the effect of the user's use of the interconnection link can be considered, and the impact of the interconnection link with the application network configuration change on the user's data interconnection service can be paid attention to. The interconnection link status evaluation value is determined, and the link status monitoring result is determined based on the interconnection link status evaluation value. Exemplarily, the interconnection link status evaluation value can be determined in the following manner:

[0109]

[0110] in, is the evaluation value of the interconnection link status at time t. Since it is related to user experience, it can also be called the user experience quality index; is the mathematical constant e; is the round trip delay at time t; is the packet loss rate at time t; is the throughput at time t; is the maximum throughput; k1 and k2 are arbitrary real numbers that can be used to adjust the steepness of the monotonic function; is the weight coefficient, which satisfies relationship.

[0111] Step S403: Obtain service status monitoring results based on the link status monitoring results.

[0112] In some embodiments, the link status monitoring results can be determined as service status monitoring results, or the link status monitoring results can be analyzed and processed, and the analysis and processing results can be used as service status monitoring results. Of course, the link status monitoring results can also be combined with other information for analysis to obtain service status monitoring results.

[0113] In this embodiment, the link status monitoring result of the interconnected link is determined based on the round-trip delay information, packet loss information and the second data throughput, and the service status monitoring result is obtained based on the link status monitoring result. The use effect of the interconnected link after the network configuration change can be comprehensively characterized through multi-dimensional indicators. At the same time, the link status monitoring result is determined through multiple quantifiable indicators, effectively improving the reliability and accuracy of the service status monitoring result.

[0114] In an exemplary embodiment, when the service status monitoring result includes a network status monitoring result and a link status monitoring result, after obtaining the corresponding service status monitoring result, the following steps may be further included:

[0115] The service status evaluation value is determined based on the network status monitoring results and the link status monitoring results, as well as their respective weights; if the service status evaluation value is greater than or equal to the threshold, it is determined that the service status monitoring result meets the grayscale amplification condition; if the service status evaluation value is less than the threshold, it is determined that the service status monitoring result does not meet the grayscale amplification condition.

[0116] In a specific implementation, after obtaining the network status monitoring results and link status monitoring results, weighted processing can be performed on the network status monitoring results and link status monitoring results according to their respective weights. The weights can reflect the importance or impact of the network status monitoring results and link status monitoring results, respectively. Weighted processing refers to the process of performing differentiated calculations by assigning corresponding weight coefficients to the network status monitoring results and link status monitoring results, respectively.

[0117] For example, a weighted summation can be performed based on the network status monitoring results and the link status monitoring results, as well as their respective weights, and the service status evaluation value can be determined based on the weighted summation result. In one example, the weighted summation result can be determined as follows: :

[0118]

[0119] in, is the normalized network status evaluation value, is the normalized interconnect link status evaluation value, is the weight adjustment coefficient.

[0120] Then, a threshold value can be set in advance, and by comparing the service status evaluation value with the threshold value, it can be determined whether the service status monitoring result meets the grayscale expansion condition. Greater than or equal to threshold (Right now ), it can be determined that the service status monitoring result meets the grayscale expansion condition, the grayscale range can be expanded, and the number of grayscale users can be increased. If the service status evaluation value is less than the threshold (i.e. ), it is determined that the service status monitoring results do not meet the grayscale expansion conditions, and a grayscale circuit breaker rollback can be performed to restore the grayscale user's network configuration.

[0121] In this embodiment, by determining the service status evaluation value based on the network status monitoring results and link status monitoring results and their respective weights, the service status can be comprehensively monitored in combination with the network status and the interconnected link status, avoiding misjudgment of a single indicator, more comprehensively reflecting the service operation quality, and identifying the impact of network configuration changes on multiple parties; on the other hand, by comparing the service status evaluation value with the threshold to achieve automated judgment, reduce reliance on manual experience, and improve decision-making efficiency and consistency.

[0122] In an exemplary embodiment, determining a service status evaluation value based on the network status monitoring result and the link status monitoring result, and their respective weights, may include the following steps:

[0123] During the grayscale test, the network status monitoring results and link status monitoring results of each time unit experienced are statistically analyzed according to the weight and in chronological order to obtain the service status evaluation value; the time unit is the time unit divided during the grayscale test.

[0124] In a specific implementation, the network status and the link status of the interconnected links can be continuously monitored during the grayscale test period. The grayscale test period can be understood as the duration of the interconnected link after the grayscale user applies the network configuration change. The grayscale test period can be divided into multiple time units.

[0125] In this embodiment, the network status monitoring results and link status monitoring results for each time unit during the grayscale test can be determined based on the network monitoring data. The network status monitoring results and link status monitoring results for multiple time units can then be statistically analyzed based on their respective weights and the temporal order of the time units, and a service status evaluation value can be obtained based on the statistical results.

[0126] In one example, the service status evaluation value S may be determined as follows:

[0127]

[0128] Wherein, N is the duration of the grayscale test, and t is the t-th time unit during the grayscale test; for example, if the duration of the grayscale test is 5 days, then N is 5, and t can be the t-th time unit within 5 days, such as the 5th day or the 8th hour.

[0129] In this embodiment, the service status evaluation value is obtained by performing statistics on the network status monitoring results and link status monitoring results of each time unit experienced according to the weight and in chronological order. The statistics of the network status monitoring results and link status monitoring results of multiple time units can be combined to reduce the impact of data fluctuations at a single moment and improve the reliability of the service status evaluation value.

[0130] In an exemplary embodiment, the service status monitoring result further includes an abnormal event monitoring result;

[0131] After obtaining the corresponding service status monitoring result, the method further includes: if the abnormal event monitoring result indicates that a preset abnormal event occurs in the network, determining that the service status monitoring result does not meet the grayscale expansion condition.

[0132] In practical applications, in addition to obtaining one or more of the network status monitoring results and link status monitoring results, network anomalies can also be monitored to obtain abnormal event monitoring results. If the abnormal event monitoring result indicates that a preset abnormal event has occurred in the network, it can be determined that the service status monitoring result does not meet the grayscale expansion conditions.

[0133] For example, after changing the network configuration of the interconnection link according to the grayscale network configuration and applying the network configuration change to the grayscale user's interconnection link, the network path status and the link status of the grayscale user's interconnection link can be monitored for abnormal events in chronological order within the first N days through fault monitoring, log alarms, etc. If a preset abnormal event is determined to have occurred (such as a major failure in the network or interconnection link or the receipt of a related serious alarm), the grayscale circuit breaker and rollback are executed to restore the grayscale user's network configuration. If no preset abnormal event occurs, the grayscale test is continued, and the network status monitoring results and link status monitoring results of each time unit experienced are statistically analyzed according to the weight and in chronological order to obtain a service status evaluation value. Based on the comparison result of the service status evaluation value and the threshold, it is judged whether the grayscale switching effect of the interconnection link meets expectations.

[0134] In this embodiment, by introducing abnormal event monitoring results as veto conditions for grayscale expansion, it is possible to quickly screen out obviously unavailable network configurations through preset abnormal events occurring during grayscale switching, and at the same time, promptly prevent problems caused by preset abnormal events from spreading during grayscale testing, thereby effectively reducing the impact of grayscale switching on users.

[0135] In an exemplary embodiment, grayscale users may be determined by the following steps:

[0136] In multiple interconnected data centers, the degree of acceptance of each user for changing the interconnection link network configuration is determined based on the network quality requirements and business volume of each user; and gray users are determined from the multiple users based on the degree of acceptance of each user.

[0137] In practice, network configuration changes may have unpredictable impacts on data interconnection services, and different users may have different levels of acceptance of changes to interconnection link network configurations. Therefore, in practical applications, the degree of acceptance of interconnection link network configuration changes by users of multiple interconnected data centers can be determined based on their user characteristics.

[0138] In this embodiment, the network quality requirement and traffic volume of each user can be determined.

[0139] Among them, network quality requirements may include requirements for one or more network quality indicators such as bandwidth, latency, jitter, packet loss rate, etc. In one example, a user's network quality requirements can be determined based on the user's network SLA (Service Level Agreement) requirements. The network SLA requirements are the network service quality clearly defined when the network service provider and the user sign the relevant agreement.

[0140] Business volume can reflect the volume of data interconnection services used by users. In some examples, the user's business volume can be determined based on the number of servers and IT system services deployed by the user in multiple interconnected data centers. The more servers / system services the user deploys, the greater the user's business volume.

[0141] Specifically, on the one hand, changing the network configuration may cause network status fluctuations or network failures. This impact is often difficult to accept for users who require low latency, low jitter, and low packet loss rate. On the other hand, for users with high traffic volume, changing the network configuration may cause network failures and trigger a large number of service interruptions for users, resulting in a relatively wide range of impacts. To this end, in this embodiment, for each user, the user's acceptance of changes to the interconnection link network configuration can be determined based on the user's network quality requirements and traffic volume. In some examples, the network quality requirements and traffic volume are negatively correlated with the acceptance level. That is, the higher the user's network quality requirements and the greater the traffic volume, the lower the user's acceptance of changes to the interconnection link network configuration.

[0142] It can be understood that determining the acceptability based on network quality requirements and business volume is only an example provided by this embodiment. In a specific implementation, the user's acceptability can also be determined based on other user characteristics. For example, the acceptability can be determined based on one or more user characteristics such as the user's business volume, business type, network quality requirements, and sensitivity to network quality changes.

[0143] After determining the acceptability of each user, users whose acceptability meets the acceptability conditions can be identified from multiple users as grayscale users. For example, the acceptability can be sorted in descending order, and the top N users can be identified as grayscale users.

[0144] In this embodiment, by quantitatively evaluating the user's acceptance of the interconnection link network configuration change based on the user's network quality requirements and business volume, and selecting grayscale users from multiple users accordingly, the impact of the network configuration change on network-sensitive users can be reduced. At the same time, grayscale switching is performed by users with higher acceptance, realizing risk-controlled network configuration change testing in a real network environment.

[0145] In order to enable those skilled in the art to better understand the above steps, the embodiment of the present application is illustrated below by using an example, but it should be understood that the embodiment of the present application is not limited to this.

[0146] like Figure 5 As shown, this embodiment may include the following steps:

[0147] Step S501 : In a plurality of interconnected data centers, the degree of acceptance of each user for changing the interconnection link network configuration may be determined based on the network quality requirements and traffic volume of each user.

[0148] Step S502: Determine gray users from multiple users based on the acceptability of each user.

[0149] Step S503, change the network configuration of the grayscale user's interconnection link according to the grayscale network configuration, apply the interconnection link with the changed network configuration to the grayscale user, and obtain the corresponding service status monitoring result; the service status monitoring result may include network status monitoring result, link status monitoring result and service status monitoring result.

[0150] Step S504: If the abnormal event monitoring result indicates that a preset abnormal event occurs in the network, it is determined that the service status monitoring result does not meet the grayscale expansion condition; if the preset abnormal event does not occur, step S505 is executed.

[0151] Step S505, determine the service status evaluation value based on the network status monitoring results and the link status monitoring results, as well as the respective weights of the network status monitoring results and the link status monitoring results; if the service status evaluation value is greater than or equal to the threshold, determine that the service status monitoring result meets the grayscale amplification condition; if the service status evaluation value is less than the threshold, determine that the service status monitoring result does not meet the grayscale amplification condition.

[0152] Step S506: If the service status monitoring result meets the grayscale expansion condition, grayscale users are expanded in multiple interconnected data centers, and the process returns to step S503.

[0153] In actual applications, when it is found that the effect of the new network configuration change is as expected, the scope of grayscale users can be further expanded, and the grayscale monitoring, evaluation and other steps can be repeated until the full underlying network link switch is officially completed.

[0154] Step S507: If the service status monitoring result does not meet the grayscale expansion condition, the network configuration of the grayscale user is restored.

[0155] It should be understood that, although the various steps in the flowcharts involved in the various embodiments described above are displayed in sequence according to the instructions of the arrows, these steps are not necessarily executed in sequence in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and these steps can be executed in other orders. Moreover, at least a portion of the steps in the flowcharts involved in the various embodiments described above can include multiple steps or multiple stages, and these steps or stages are not necessarily executed and completed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a portion of steps or stages in other steps.

[0156] Based on the same inventive concept, embodiments of the present application also provide a device for grayscale switching of a data center interconnect link, for implementing the aforementioned method for grayscale switching of a data center interconnect link. The solution provided by this device is similar to the solution described in the aforementioned method. Therefore, the specific limitations of the embodiments of the device for grayscale switching of one or more data center interconnect links provided below can be found in the aforementioned definition of the method for grayscale switching of a data center interconnect link, and will not be further elaborated here.

[0157] In an exemplary embodiment, Figure 6 As shown, a grayscale switching device for a data center interconnection link is provided, comprising:

[0158] Initialization module 601, used to initialize some users in multiple interconnected data centers as grayscale users;

[0159] A monitoring result acquisition module 602 is configured to change the network configuration of the interconnection link of the grayscale user according to the grayscale network configuration, apply the network configuration change to the interconnection link of the grayscale user, and obtain corresponding service status monitoring results; the service status monitoring results include network status monitoring results and / or link status monitoring results;

[0160] A grayscale expansion module 603 is configured to expand the grayscale user in multiple interconnected data centers if the service status monitoring result satisfies the grayscale expansion condition, return to the steps of changing the network configuration of the grayscale user's interconnection link according to the grayscale network configuration, apply the changed network configuration to the grayscale user's interconnection link, and obtain the corresponding service status monitoring result;

[0161] The configuration restoration module 604 is configured to restore the network configuration of the grayscale user if the service status monitoring result does not meet the grayscale expansion condition.

[0162] In one embodiment, the monitoring result acquisition module 602 is configured to:

[0163] Obtaining, based on the network monitoring data, network fault information corresponding to the network, as well as delay information and a first data throughput of a target link in the network;

[0164] determining a network status monitoring result according to the network fault information, the delay information, and the first data throughput;

[0165] A service status monitoring result is obtained according to the network status monitoring result.

[0166] In one embodiment, the monitoring result acquisition module 602 is configured to:

[0167] Determining, based on network monitoring data, round-trip delay information, packet loss information, and a second data throughput of the interconnected link of the network configuration change;

[0168] determining a link status monitoring result of the interconnected link according to the round-trip delay information, the packet loss information, and the second data throughput;

[0169] A service status monitoring result is obtained according to the link status monitoring result.

[0170] In one embodiment, when the service status monitoring result includes a network status monitoring result and a link status monitoring result, the monitoring result acquisition module 602 is further configured to:

[0171] Determining a service status evaluation value according to the network status monitoring result and the link status monitoring result, and respective weights of the network status monitoring result and the link status monitoring result;

[0172] If the service status evaluation value is greater than or equal to the threshold, determining that the service status monitoring result meets the grayscale amplification condition;

[0173] If the service status evaluation value is less than the threshold, it is determined that the service status monitoring result does not meet the grayscale expansion condition.

[0174] In one embodiment, the monitoring result acquisition module 602 is further configured to:

[0175] During the grayscale test, the network status monitoring results and link status monitoring results of each time unit experienced are statistically analyzed according to the weight and in chronological order to obtain the service status evaluation value; the time unit is the time unit divided during the grayscale test.

[0176] In one embodiment, the service status monitoring result further includes an abnormal event monitoring result;

[0177] The monitoring result acquisition module 602 is further configured to:

[0178] If the abnormal event monitoring result indicates that a preset abnormal event occurs in the network, it is determined that the service status monitoring result does not meet the grayscale expansion condition.

[0179] In one embodiment, the apparatus is further configured to determine the grayscale user by the following steps:

[0180] In the interconnected multiple data centers, determining the degree of acceptance of each user for changing the interconnected link network configuration based on the network quality requirements and traffic volume of each user;

[0181] The grayscale user is determined from the plurality of users according to the acceptability of each user.

[0182] Each module in the grayscale switching device for the aforementioned data center interconnect link can be implemented in whole or in part through software, hardware, or a combination thereof. Each module can be embedded in or independent of a processor in a communication device in hardware form, or can be stored in a memory in the communication device in software form, so that the processor can call and execute the corresponding operations of each module.

[0183] In an exemplary embodiment, a communication device is provided. The communication device may be a server, and its internal structure diagram may be as shown in FIG. Figure 7 As shown. The communication device includes a processor, a memory, an input / output interface (Input / Output, abbreviated as I / O) and a communication interface. The processor, memory and input / output interface are connected through a system bus, and the communication interface is connected to the system bus through the input / output interface. The processor of the communication device is used to provide computing and control capabilities. The memory of the communication device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and computer program in the non-volatile storage medium. The database of the communication device is used to store user data of interconnected data centers. The input / output interface of the communication device is used to exchange information between the processor and an external device. The communication interface of the communication device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, a grayscale switching method for a data center interconnection link is implemented.

[0184] Those skilled in the art will understand that Figure 7 The structure shown in the figure is only a block diagram of a part of the structure related to the scheme of the present application, and does not constitute a limitation on the communication device to which the scheme of the present application is applied. The specific communication device may include more or fewer components than shown in the figure, or combine certain components, or have a different component arrangement.

[0185] In one embodiment, a communication device is provided, including a memory and a processor. The memory stores a computer program, and the processor implements the steps in the above method embodiments when executing the computer program.

[0186] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps in the above-mentioned method embodiments are implemented.

[0187] In one embodiment, a computer program product is provided, including a computer program, which implements the steps in the above method embodiments when executed by a processor.

[0188] Those skilled in the art will understand that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. In particular, any reference to memory, database, or other media used in the embodiments provided in this application can include at least one of non-volatile memory and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The databases involved in the various embodiments provided herein may include at least one of a relational database and a non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the various embodiments provided herein may be, but are not limited to, general-purpose processors, central processing units (CPUs), graphics processing units (GPUs), digital signal processors (DSPs), programmable logic devices (PLDs), quantum computing-based data processing logic devices, artificial intelligence (AI) processors, and the like.

[0189] The technical features of the above embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0190] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present application shall be determined by the appended claims.

Claims

1. A grayscale switching method for a data center interconnection link, characterized in that: The method comprises: In multiple interconnected data centers, the initial users are grayscale users; Changing the network configuration of the interconnection link of the grayscale user according to the grayscale network configuration, applying the interconnection link with the changed network configuration to the grayscale user, and obtaining corresponding service status monitoring results; the service status monitoring results include network status monitoring results and / or link status monitoring results; If the service status monitoring result satisfies the grayscale expansion condition, the grayscale user is expanded in the interconnected multiple data centers, and the steps of changing the network configuration of the interconnection link of the grayscale user according to the grayscale network configuration are returned to, and the interconnection link with the changed network configuration is applied to the grayscale user, and the corresponding service status monitoring result is obtained; If the service status monitoring result does not meet the grayscale expansion condition, the network configuration of the grayscale user is restored.

2. The method according to claim 1, characterized in that The obtaining of the corresponding service status monitoring result includes: Obtaining, based on the network monitoring data, network fault information corresponding to the network, as well as delay information and a first data throughput of a target link in the network; determining a network status monitoring result according to the network fault information, the delay information, and the first data throughput; A service status monitoring result is obtained according to the network status monitoring result.

3. The method according to claim 1, characterized in that The obtaining of the corresponding service status monitoring result includes: Determining, based on network monitoring data, round-trip delay information, packet loss information, and a second data throughput of the interconnected link of the network configuration change; determining a link status monitoring result of the interconnected link according to the round-trip delay information, the packet loss information, and the second data throughput; A service status monitoring result is obtained according to the link status monitoring result.

4. The method according to claim 1, wherein Also includes: Determining a service status evaluation value according to the network status monitoring result and the link status monitoring result, and respective weights of the network status monitoring result and the link status monitoring result; If the service status evaluation value is greater than or equal to the threshold, determining that the service status monitoring result meets the grayscale amplification condition; If the service status evaluation value is less than the threshold, it is determined that the service status monitoring result does not meet the grayscale expansion condition.

5. The method according to claim 4, characterized in that Determining a service status evaluation value according to the network status monitoring result and the link status monitoring result, and respective weights of the network status monitoring result and the link status monitoring result, includes: During the grayscale test, the network status monitoring results and link status monitoring results of each time unit experienced are statistically analyzed according to the weight and in chronological order to obtain the service status evaluation value; the time unit is the time unit divided during the grayscale test.

6. The method according to claim 1, characterized in that The service status monitoring results also include abnormal event monitoring results; After obtaining the corresponding service status monitoring result, the method further includes: If the abnormal event monitoring result indicates that a preset abnormal event occurs in the network, it is determined that the service status monitoring result does not meet the grayscale expansion condition.

7. The method according to any one of claims 1 to 6, characterized in that The grayscale user is determined by the following steps: In the interconnected multiple data centers, determining the degree of acceptance of each user for changing the interconnected link network configuration based on the network quality requirements and traffic volume of each user; The grayscale user is determined from the plurality of users according to the acceptability of each user.

8. A grayscale switching device for a data center interconnection link, characterized in that: The device comprises: The initialization module is used to initialize some users in multiple interconnected data centers as grayscale users; A monitoring result acquisition module is configured to change the network configuration of the interconnection link of the grayscale user according to the grayscale network configuration, apply the interconnection link with the network configuration change to the grayscale user, and obtain corresponding service status monitoring results; the service status monitoring results include network status monitoring results and / or link status monitoring results; a grayscale expansion module configured to, if the service status monitoring result satisfies the grayscale expansion condition, expand the grayscale user in multiple interconnected data centers, return to the steps of changing the network configuration of the grayscale user's interconnection link according to the grayscale network configuration, apply the changed network configuration to the grayscale user's interconnection link, and obtain the corresponding service status monitoring result; A configuration restoration module is used to restore the network configuration of the grayscale user if the service status monitoring result does not meet the grayscale expansion condition.

9. A communication device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 7 are implemented.

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