CN106603722B - Management equipment determining method and device - Google Patents
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- CN106603722B CN106603722B CN201710047649.2A CN201710047649A CN106603722B CN 106603722 B CN106603722 B CN 106603722B CN 201710047649 A CN201710047649 A CN 201710047649A CN 106603722 B CN106603722 B CN 106603722B
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Abstract
The application provides a management device determining method and device. In the application, the system can enable the designated temporary management equipment to acquire the management performance index value of each equipment in the system at any time in a mode of randomly designating one temporary management equipment, and accordingly, the management equipment in the system is determined, so that the determination efficiency of the management equipment can be improved, and the labor cost can be reduced; on the other hand, the normal operation of the system management work is ensured under the condition that the original management equipment fails.
Description
Technical Field
The present application relates to the field of network communication technologies, and in particular, to a method and an apparatus for determining a management device.
Background
With the increasing scale of networks, device management is becoming an increasingly important component of network maintenance. In general, the management device manages the member devices in the system where the management device is located, for example, statistics and analysis are performed on parameters of the member devices locally, or remote configuration and maintenance are performed on the member devices. Therefore, it is generally required to have a better operation performance for managing the device so as to be competent for the complicated device management work.
In the prior art, the management device is generally determined manually. When management equipment in a large-scale system needs to be determined, workers usually spend a long time to integrate and compare parameters of various devices to be selected in the system; moreover, when the management device fails but the worker is not present in the field of the device, the system in which the management device is located will be interrupted due to the fact that the new management device cannot be determined in the first time. Therefore, the method for manually determining the management equipment has the defects of low efficiency, high labor cost and the like, and can also cause the interruption of the management work of the system equipment when the management equipment fails.
Disclosure of Invention
In view of this, the present application provides a method and an apparatus for determining a management device, so as to improve the determination efficiency of the management device, and determine a new management device in time through the method and the apparatus when the determined management device fails, thereby ensuring normal operation of management work.
According to a first aspect of the embodiments of the present application, a method for determining a management device is provided, where the method is applied to a system including at least two devices, and any device in the system has a communication connection relationship with other devices; designating any device in the system as a temporary management device in advance, the method comprising:
the method comprises the steps that a temporary management device obtains a management performance index value of each device in a system, wherein the management performance index value comprises a network delay time length average value;
determining the equipment with the average network delay time length smaller than a preset threshold value as candidate management equipment;
for each candidate management device, performing weighted summation operation on the management performance index value of the device according to the weight value of the management performance index;
the candidate management device having the highest operation value is determined as the management device, and the determination result is broadcast to all devices in the system.
According to a second aspect of the embodiments of the present application, there is provided a device for determining a management device, where the device is applied to a temporary management device in a system, the system includes at least two devices, and any device in the system has a communication connection relationship with other devices; designating any device in the system as a temporary management device in advance, the apparatus comprising:
the system comprises an acquisition unit, a processing unit and a control unit, wherein the acquisition unit is used for acquiring a management performance index value of each device in the system, and the management performance index value comprises a network delay time length average value;
the first determining unit is used for determining the equipment of which the average value of the network delay time duration is smaller than a preset threshold value as candidate management equipment;
the operation unit is used for carrying out weighted summation operation on the management performance index value of each candidate management device according to the weight value of the management performance index;
and a second determination unit configured to determine the candidate management apparatus having the highest operation value as the management apparatus and broadcast the determination result to all apparatuses in the system.
In the application, the system can enable the designated temporary management device to acquire the management performance index value of each device in the system at any time by arbitrarily designating one temporary management device, and accordingly, the management device in the system is determined. Specifically, when the management device in the system needs to be determined for the first time, or when the management device needs to be determined again due to a failure of the original management device, the temporary management device classifies the acquired management performance index value: firstly, by determining the device with the average network delay time length smaller than the preset threshold as the candidate management device, the temporary management device can filter the device with poor communication quality or positioned at the edge of the network so as to ensure that the determined management device has basic management performance of accurate operation and quick response; secondly, in order to ensure that the determined management device has better comprehensive management performance, the temporary management device evaluates the comprehensive management performance of the device according to the management performance index value and each index weight value of the device aiming at each candidate management device, and determines the management device of the system according to the evaluation result. Therefore, the automatic determination of the system management equipment is realized, so that the determination efficiency of the management equipment can be improved, and the labor cost can be reduced; on the other hand, the normal operation of the system management work is ensured under the condition that the original management equipment fails.
Drawings
Fig. 1 is a schematic view of a scenario illustrating a determination method of a management device according to an exemplary embodiment of the present application;
FIG. 2 is a flow chart of a method of determining a management device according to the present application;
FIG. 3 is a flowchart of an embodiment of a determination method of a management device according to the present application;
FIG. 4 is a first block diagram of a determining apparatus of a management device according to the present application;
FIG. 5 is a second block diagram of a determining apparatus of a management device according to the present application;
fig. 6 is a third structural diagram of a determination device of a management apparatus according to the present application.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present application. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.
Referring to fig. 1, fig. 1 is a schematic view of a scenario of a determination method of a management device according to an exemplary embodiment of the present application. The scene relates to a system comprising a plurality of devices, and any device in the system has a communication connection relationship with other devices, wherein the devices forming the system, i.e. nodes in the figure, may be any network device in which the system comprises redundant components, such as switches, servers, and routers, or the system needs to implement self-management. With the gradual increase of network scale, the management device undertakes increasingly difficult device management tasks, such as statistics and analysis of parameters of the system member devices, or remote configuration and maintenance of the member devices, and these management tasks are well completed, and the management device needs to have better working performance compared with other devices.
In the prior art, the management device is generally determined manually. When management equipment in a large-scale system needs to be determined, workers usually spend a long time to integrate and compare parameters of various devices to be selected in the system; moreover, when the management device fails but the worker is not present in the field of the device, the system in which the management device is located will be interrupted due to the fact that the new management device cannot be determined in the first time. Therefore, the method for manually determining the management equipment has the defects of low efficiency, high labor cost and the like, and can also cause the interruption of the management work of the system equipment when the management equipment fails.
In order to solve the problem, the application provides a method and a device for determining management equipment, so as to improve the determination efficiency of the management equipment, and determine new management equipment in time by the method when the determined management equipment fails, thereby ensuring the normal operation of management work.
In order to make the technical solutions in the embodiments of the present application better understood and make the above objects, features and advantages of the embodiments of the present application more comprehensible, the technical solutions in the embodiments of the present application are described in further detail below with reference to the accompanying drawings.
Referring to fig. 2, fig. 2 is a flowchart of a determination method of a management device according to the present application, where the flowchart may include the following steps:
step 201: the temporary management equipment acquires the management performance index value of each equipment in the system, wherein the management performance index value comprises the average value of network delay time.
The method is applied to a system at least comprising two devices, and any device in the system has a communication connection relation with other devices. When the management device in the networking needs to be determined for the first time, a worker can implement the embodiment of the method by designating any device in the system as a temporary management device. At this time, the designated temporary management device has the temporary management authority, such as by using the identity of the temporary management device, collecting relevant information for each device in the system, and broadcasting the determination result of the final management device to each device in the system.
In an optional implementation manner, when any device in the system is directly connected to other devices and a Link Layer Discovery Protocol (LLDP) neighbor relationship is established between the any device in the system and the other devices, the temporary management device may obtain a management performance index value that each device in the system sends to the local device through an LLDP message. Specifically, each device may compose its own management performance index value into different types/lengths/values TLV, encapsulate the TLV in a link layer discovery protocol data unit LLDPDU, and send the TLV to the temporary management device.
In this embodiment of the method, the managing the performance index value may include: average network delay time, central processing unit master frequency, central processing unit utilization rate, memory utilization rate, port bandwidth and the like.
Step 202: and the temporary management equipment determines the equipment with the average network delay time length smaller than a preset threshold value as candidate management equipment.
In order to ensure that the determined management device has basic management performance of accurate operation and quick response, the embodiment of the method filters the device of which the average value of the network delay time duration is greater than or equal to the preset threshold value through the step. Specifically, the average value of the network delay time of the device may be determined by parameters such as the communication quality of the device, the location in the network, the frequency of communicating with other devices, and the average online time.
Step 203: and the temporary management equipment carries out weighted summation operation on the management performance index value of the equipment according to the weight value of the management performance index aiming at each candidate management equipment.
In this embodiment of the method, the temporary management device may locally pre-store the weight value corresponding to each management performance index, so that after the management performance index value of each device is obtained, the management performance index value of the device is subjected to weighted summation operation according to the weight value of the management performance index, and a device with the optimal comprehensive management performance is selected from candidate management devices as the management device.
Step 204: the temporary management apparatus determines a candidate management apparatus having the highest operation value as a management apparatus, and broadcasts the determination result to all apparatuses in the system.
In the embodiment of the method, the temporary management equipment can acquire the management performance index value of each equipment in the system, acquire the management address of each equipment, and send the acquired management address of each equipment to the determined management equipment, so that the management equipment can log in each equipment in time and configure the operation parameters of each equipment.
The temporary management device can terminate using the temporary management authority of the temporary management device after confirming that the temporary management device is not the determined management device; and when the determined management equipment fails, starting the temporary management authority of the management equipment to execute the determination step of the management equipment in the embodiment of the method again, or directly determining the management equipment in the system again on the basis of the operation result saved in the last determination process of the management equipment.
In the embodiment of the method, the system can enable the specified temporary management equipment to acquire the management performance index value of each equipment in the system at any time by randomly specifying one temporary management equipment, and accordingly, the management equipment in the system is determined. Specifically, when the management device in the system needs to be determined for the first time, or when the management device needs to be determined again due to a failure of the original management device, the temporary management device classifies the acquired management performance index value: firstly, by determining the device with the average network delay time length smaller than the preset threshold as the candidate management device, the temporary management device can filter the device with poor communication quality or positioned at the edge of the network so as to ensure that the determined management device has basic management performance of accurate operation and quick response; secondly, in order to ensure that the determined management device has better comprehensive management performance, the temporary management device evaluates the comprehensive management performance of the device according to the management performance index value and each index weight value of the device aiming at each candidate management device, and determines the management device of the system according to the evaluation result. Therefore, the automatic determination of the system management equipment is realized, so that the determination efficiency of the management equipment can be improved, and the labor cost can be reduced; on the other hand, the normal operation of the system management work is ensured under the condition that the original management equipment fails.
Referring to fig. 3, fig. 3 is a flowchart of an embodiment of a determination method of a management device according to the present application. Different from the above method embodiments, the present embodiment will describe the method in detail by way of interaction of related information between device roles and a digital example. The flowchart of this embodiment may include the following steps:
step 301: and the temporary management equipment sends a management information acquisition message to all the equipment which establishes communication connection with the local equipment.
In this embodiment, the device that receives the management information acquisition message performs identity authentication on the message: according to the protocol type of the message, extracting the temporary management equipment identity verification information contained in the message from the specific field of the message, and comparing the temporary management equipment identity verification information with the temporary management equipment identity information stored in advance locally to confirm the authenticity of the obtained message; if the obtained message is confirmed to be true, the management performance index contained in the obtained message is further extracted. The management performance index may be included in a user-defined field of the obtained message.
As a preferred embodiment, when the device in the system is a three-layer forwarding device, the temporary management device may configure a lifetime field in the management information acquisition message sent according to the networking scale of the system to which the temporary management device belongs. Since the configured time-to-live value is automatically reduced by one when passing through the three-layer forwarding device, the method can be used for limiting the reachable radius of the message, so as to eliminate the possibility that the device located in the edge zone of the network is used as the management device on one hand, reduce the pressure of network communication on the other hand, and improve the efficiency of determining the management device by the temporary management device.
It should be noted that the present embodiment considers: all the devices having established communication connection with the temporary management device may form a system and be collectively managed by the management device determined in the future.
Step 302: and the temporary management equipment acquires a management performance index value returned by each equipment according to the management information acquisition message, wherein the management performance index value comprises a network delay time average value.
In this embodiment, the management performance index value includes an average value of network delay durations. The parameters for determining the average value of the network delay time duration are specifically described in step 202, and are not described herein again.
The average value of the network delay time length of each device can be predetermined locally by each device, or can be determined uniformly by the temporary management device according to the decision parameter value of the average value of the network delay time length returned by each device.
Step 303: and the temporary management equipment determines the equipment with the average network delay time length smaller than a preset threshold value as candidate management equipment.
In this embodiment, the implementation significance of this step has already been elaborated in step 202, and is not described herein again.
Step 304: and the temporary management equipment carries out weighted summation operation on the management performance index value of the equipment according to the weight value of the management performance index aiming at each candidate management equipment.
In this embodiment, it is assumed that the device numbers of the candidate management devices determined in step 303 are A, B, C, D, respectively, and the device number of the temporary management device is E; and assuming that the comprehensive management performance indexes are respectively central processing unit master frequency, central processing unit utilization rate, memory utilization rate and port bandwidth, and the corresponding index weight values are 30%, 20% and 20%, when the central processing unit master frequencies of the five devices are sequentially: 3.2GHz, 3.7GHz, 4GHz and 3.7 GHz; the central processing unit utilization rate is as follows in sequence: 40%, 30%, 25%, 30%; the memory rate is as follows in sequence: 60%, 40%, 30%, 40%; the port bandwidth is as follows: 20M, 100M, then according to the weighted sum algorithm: the comprehensive management performance calculation values of the devices with the device numbers of A, B, C, D, E in sequence are respectively as follows: 5.2, 21.28, 21.35, 21.355, 21.28.
Step 305: the temporary management apparatus determines a candidate management apparatus having the highest operation value as a management apparatus, and broadcasts the determination result to all apparatuses in the system.
In this embodiment, it can be seen from the above operation that, of five devices whose device numbers are A, B, C, D, E in this order, the device with the highest overall management performance operation value is device D. The device D determines the temporarily managed device as the managing device in the present system, and broadcasts the determination result to all devices in the present system.
It can be seen from this embodiment that, the temporary management device in the system can determine the management device in the system by obtaining the management performance index value of each device in the system. Specifically, when the management device in the system needs to be determined for the first time, or when the management device needs to be determined again due to a failure of the original management device, the temporary management device classifies the acquired management performance index value: firstly, by determining the device with the average network delay time length smaller than the preset threshold as the candidate management device, the temporary management device can filter the device with poor communication quality or positioned at the edge of the network so as to ensure that the determined management device has basic management performance of accurate operation and quick response; secondly, in order to ensure that the determined management device has better comprehensive management performance, the temporary management device evaluates the comprehensive management performance of the device according to the management performance index value and each index weight value of the device aiming at each candidate management device, and determines the management device of the system according to the evaluation result. Therefore, the automatic determination of the system management equipment is realized, so that the determination efficiency of the management equipment can be improved, and the labor cost can be reduced; on the other hand, the normal operation of the system management work is ensured under the condition that the original management equipment fails.
Corresponding to the foregoing embodiment of the method for determining a management device, the present application also provides an embodiment of a determining apparatus for a management device.
Referring to fig. 4, fig. 4 is a first structural diagram of a determination device of a management apparatus according to the present application. The device is applied to temporary management equipment in a system, the system at least comprises two pieces of equipment, and any piece of equipment in the system has a communication connection relation with other pieces of equipment; any one device in the system is designated as a temporary management device in advance, and the apparatus may include: an acquisition unit 401, a first determination unit 402, an arithmetic unit 403, and a second determination unit 404.
The acquiring unit 401 is configured to acquire a management performance index value of each device in the system, where the management performance index value includes an average value of network delay durations;
a first determining unit 402, configured to determine, as a candidate management device, a device whose network delay duration average is smaller than a preset threshold;
an operation unit 403, configured to perform weighted summation operation on the management performance index value of each candidate management device according to the weight value of the management performance index;
a second determination unit 404 configured to determine the candidate management device with the highest operation value as the management device and broadcast the determination result to all devices in the system.
In a first implementation manner of this embodiment, when any device in the system is directly connected to another device, the obtaining unit 401 may specifically be configured to:
and acquiring a management performance index value sent to the local by each device in the system through a Link Layer Discovery Protocol (LLDP) message.
In a second implementation manner of this embodiment, the receiving unit configured in the device other than the temporary management device in the system and configured to interact with the obtaining unit in the temporary management device may specifically be configured to:
the self-management performance index values are formed into different types/lengths/values TLV, encapsulated in a link layer discovery protocol data unit LLDPDU, and sent to the obtaining unit 401 in the temporary management device.
In a third implementation manner of this embodiment, the obtaining unit 401 may further be configured to: acquiring a management address of each device in the system;
the above apparatus may further include: a sending unit 405, configured to send the acquired management address to the determined management device after the management device is determined, which may specifically refer to fig. 5: a second configuration of the determination means of the management device of the present application.
In a fourth implementation manner of this embodiment, the apparatus may further include:
an authority control unit 406 configured to terminate using the own temporary management authority when the second determination unit broadcasts the determination result of the management apparatus to all apparatuses in the system and confirms that itself is not the determined management apparatus; and when the determined management device fails, starting the temporary management authority of the management device, which may be specifically shown in fig. 6: a third configuration of the determination means of the management device according to the present application.
The embodiment of the device can show that the temporary management equipment in the system can realize the determination of the management equipment in the system by acquiring the management performance index value of each equipment in the system. Specifically, when the management device in the system needs to be determined for the first time, or when the management device needs to be determined again due to a failure of the original management device, the temporary management device classifies the acquired management performance index value: firstly, by determining the device with the average network delay time length smaller than the preset threshold as the candidate management device, the temporary management device can filter the device with poor communication quality or positioned at the edge of the network so as to ensure that the determined management device has basic management performance of accurate operation and quick response; secondly, in order to ensure that the determined management device has better comprehensive management performance, the temporary management device evaluates the comprehensive management performance of the device according to the management performance index value and each index weight value of the device aiming at each candidate management device, and determines the management device of the system according to the evaluation result. Therefore, the automatic determination of the system management equipment is realized, so that the determination efficiency of the management equipment can be improved, and the labor cost can be reduced; on the other hand, the normal operation of the system management work is ensured under the condition that the original management equipment fails.
The implementation process of the functions and actions of each unit in the above device is specifically described in the implementation process of the corresponding step in the above method, and is not described herein again.
For the device embodiments, since they substantially correspond to the method embodiments, reference may be made to the partial description of the method embodiments for relevant points. The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the scheme of the application. One of ordinary skill in the art can understand and implement it without inventive effort.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the scope of protection of the present application.
Claims (10)
1. A method for determining a management device, the method being applied to a system including at least two devices, any device in the system having a communication connection relationship with other devices, wherein any device in the system is designated as a temporary management device in advance, the method comprising:
the temporary management equipment sends a management information acquisition message to all equipment which establishes communication connection with the local equipment; wherein, under the condition that the device in the system is a three-layer forwarding device, a time-to-live field is configured in the management information acquisition message;
the equipment receiving the management information acquisition message carries out identity verification on the message; the identity authentication method comprises the following steps: according to the protocol type of the message, extracting the temporary management equipment identity verification information contained in the message from the specific field of the message, and comparing the temporary management equipment identity verification information with the temporary management equipment identity information stored in advance locally to confirm the authenticity of the obtained message; if the obtained message is confirmed to be true, further extracting the management performance index contained in the obtained message;
the method comprises the steps that a temporary management device obtains a management performance index value returned by each device in a system according to a management information obtaining message, wherein the management performance index value comprises a network delay time average value;
determining the equipment with the average network delay time length smaller than a preset threshold value as candidate management equipment;
for each candidate management device, performing weighted summation operation on the management performance index value of the device according to the weight value of the management performance index;
the candidate management device having the highest operation value is determined as the management device, and the determination result is broadcast to all devices in the system.
2. The method of claim 1, wherein any device in the system has a communication connection relationship with other devices, comprising: any device in the system is directly connected with other devices;
the acquiring, by the temporary management device, a management performance index value of each device in the system includes:
the temporary management equipment acquires the management performance index value sent to the local by each equipment in the system through a Link Layer Discovery Protocol (LLDP) message.
3. The method of claim 2, wherein each device sends its own management performance index value to the temporary management device via LLDP packet, comprising:
each device forms the self management performance index value into different types/lengths/values TLV, encapsulates the TLV in a link layer discovery protocol data unit LLDPDU, and sends the TLV to the temporary management device.
4. The method of claim 1, further comprising:
the temporary management equipment acquires the management address of each equipment in the system; and after the management equipment is determined, the acquired management address is sent to the determined management equipment.
5. The method of claim 1, wherein the method is followed by further comprising:
when the temporary management device confirms that the temporary management device is not the determined management device, the temporary management device terminates using the temporary management authority of the temporary management device; and when the determined management equipment fails, starting the temporary management authority of the management equipment.
6. An apparatus for determining a management device, the apparatus being applied to a temporary management device in a system, the system including at least two devices, and any device in the system having a communication connection relationship with other devices, wherein any device in the system is designated as the temporary management device in advance, the apparatus comprising:
the system comprises an acquisition unit, a processing unit and a control unit, wherein the acquisition unit is used for acquiring a management performance index value of each device in the system, and the management performance index value comprises a network delay time length average value; the obtaining unit is specifically configured to obtain the management performance index value by: sending a management information acquisition message to all devices which establish communication connection with the local device; so that the equipment receiving the management information acquisition message performs identity verification on the message; wherein, under the condition that the device in the system is a three-layer forwarding device, a time-to-live field is configured in the management information acquisition message; the identity authentication method comprises the following steps: according to the protocol type of the message, extracting the temporary management equipment identity verification information contained in the message from the specific field of the message, and comparing the temporary management equipment identity verification information with the temporary management equipment identity information stored in advance locally to confirm the authenticity of the obtained message; if the obtained message is confirmed to be true, further extracting the management performance index contained in the obtained message; acquiring a management performance index value returned by each device in the system according to the management information acquisition message;
the first determining unit is used for determining the equipment of which the average value of the network delay time duration is smaller than a preset threshold value as candidate management equipment;
the operation unit is used for carrying out weighted summation operation on the management performance index value of each candidate management device according to the weight value of the management performance index;
and a second determination unit configured to determine the candidate management apparatus having the highest operation value as the management apparatus and broadcast the determination result to all apparatuses in the system.
7. The apparatus of claim 6, wherein any device in the system has a communication connection relationship with other devices, comprising: any device in the system is directly connected with other devices;
the obtaining unit is specifically configured to:
and acquiring a management performance index value sent to the local by each device in the system through a Link Layer Discovery Protocol (LLDP) message.
8. The apparatus according to claim 7, wherein the receiving unit, configured in a device other than the temporary managing device in the system, and configured to interact with the obtaining unit in the temporary managing device, is specifically configured to:
and the self management performance index values are formed into different types/lengths/values TLV, encapsulated in a link layer discovery protocol data unit LLDPDU and sent to an acquisition unit in the temporary management equipment.
9. The apparatus of claim 6, wherein the obtaining unit is further configured to: acquiring a management address of each device in the system;
the device further comprises: and the sending unit is used for sending the acquired management address to the determined management equipment after the management equipment is determined.
10. The apparatus of claim 6, further comprising:
the authority control unit is used for stopping using the temporary management authority of the second determination unit after the second determination unit broadcasts the determination result of the management equipment to all the equipment in the system and confirms that the second determination unit is not the determined management equipment; and when the determined management equipment fails, starting the temporary management authority of the management equipment.
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CN113065122A (en) * | 2021-04-01 | 2021-07-02 | 山东浪潮通软信息科技有限公司 | Temporary authority management method, device and computer readable medium |
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