CN110958139B - Network control method, orchestrator, controller, and computer-readable storage medium - Google Patents

Abstract

The invention relates to the field of communication, and discloses a network control method, an arranger, a controller and a computer-readable storage medium. Wherein, the network control method, applied to the orchestrator, includes: connecting at least one controller; sending a control command to the controller, and the control command includes configuration command information and configuration recovery command information. The network control method is applied to the controller, including: connecting with the orchestrator, and receiving the control command issued by the orchestrator, the control command includes configuration command information and configuration recovery command information; completing the configuration task according to the configuration command information; when communicating with the orchestrator When the communication connection is interrupted, the configuration recovery is completed according to the configuration recovery command information. Compared with the prior art, the network control method, orchestrator, controller and computer-readable storage medium provided by the embodiments of the present invention have the advantage that when the orchestrator itself is abnormal, the controller can also restore to the state before configuration.

Description

Network control method, orchestrator, controller, and computer-readable storage medium

technical field

The invention relates to the communication field, in particular to a network control method, an orchestrator, a controller and a computer-readable storage medium.

Background technique

The software-defined network (Software Defined Network, SDN) orchestrator is to meet the needs of users, arrange and organize different network resources and technologies in an orderly and reasonable manner, generate network services that can meet user requirements, and generate network services. Services are capable of rapid deployment, dynamic adjustment, and reusability. The network orchestrator combines SDN and Network Functions Virtualization (Network Functions Virtualization, NFV) technologies to manage and monitor network resources in a unified manner, automatically orchestrate and rapidly deploy network services. In order to achieve the purpose of unified management and monitoring of network resources, the network orchestrator needs to interface with various network element controllers, such as wide area network (Wide Area Network, WAN) controller, domain controller (Domain Controller, DC), etc., network orchestrator When performing network orchestration according to user service requirements, it is necessary to communicate with each controller network element in sequence according to service requirements, and coordinate each network element to achieve the required configuration, in order to complete service orchestration.

When multiple controllers cooperate to process business, the orchestrator needs to restore the state of each controller in turn after the controller is abnormal, so as to ensure the consistent operation of configuration transaction delivery, that is, the business delivery of the orchestrator is abstracted into a complete configuration state , a complete configuration transaction becomes considered successful only after all the controllers are delivered and executed successfully. Some controllers are configured successfully and some controllers fail.

However, the inventors of the present invention have found that the controller in the prior art needs to be instructed by the orchestrator when returning to the state of the controller. previous status issues.

Contents of the invention

The purpose of the embodiments of the present invention is to provide a network control method, an orchestrator, a controller, and a computer-readable storage medium, so that when an abnormality occurs in the orchestrator itself, the controller can also restore to the state before configuration.

In order to solve the above technical problems, the embodiment of the present invention provides a network control method, which is applied to an orchestrator, including: connecting at least one controller; sending a control command to the controller, and the control command includes configuration command information and configuration recovery command information.

The embodiment of the present invention also provides a network control method applied to the controller, including: establishing a communication connection with the orchestrator, and receiving a control command issued by the orchestrator, the control command includes configuration command information and configuration Restoring command information; completing configuration tasks according to the configuration command information; completing configuration restoration according to the configuration restoration command information when the communication connection with the orchestrator is interrupted.

The embodiment of the present invention also provides an orchestrator, including: at least one processor; and a memory connected in communication with the at least one processor; wherein, the memory stores a program that can be executed by the at least one processor Instructions, the instructions are executed by the at least one processor, so that the at least one processor can execute the aforementioned network control method.

The embodiment of the present invention also provides a controller, including: at least one processor; and a memory connected to the at least one processor in communication; Instructions, the instructions are executed by the at least one processor, so that the at least one processor can execute the aforementioned network control method.

The embodiment of the present invention also provides a computer-readable storage medium storing a computer program, and implementing the aforementioned network control method when the computer program is executed by a processor.

Compared with the prior art, in the embodiment of the present invention, the control commands sent by the orchestrator to the controller not only include the configuration command information instructing the controller to complete the configuration task, but also include configuration information for instructing the controller to restore the pre-configuration state Restore command information. When the controller confirms that the communication connection with the scheduler is interrupted, it considers that the scheduler is abnormal, and completes the configuration recovery according to the configuration recovery command information received in advance. This ensures that even if the orchestrator itself is abnormal, the controller can be restored to the pre-configuration state.

In addition, after sending the control command to the controller, it also includes: determining whether a plurality of the controllers are abnormal; if at least one of the controllers is abnormal, sending failure information to the plurality of controllers . When at least one controller is detected to be abnormal, multiple controllers will send failure information, so as to control multiple controllers to restore to the state before configuration.

In addition, the sending the control command to the controller specifically includes: sending the control command to multiple controllers in sequence; after sending each of the control commands, confirming that the currently receiving the control command Whether the controller is abnormal; if yes, send failure information to the controller that has sent the control command. After each control command is issued, it is confirmed whether the controller currently receiving the control command is abnormal; if the controller is abnormal, a failure message is sent to the controller that has issued the control command. Therefore, there is no need to send failure information to each controller, which effectively improves the work efficiency of the orchestrator.

In addition, the orchestrator is a software-defined network orchestrator.

In addition, after completing the configuration task according to the configuration command information, the method further includes: completing configuration restoration according to the configuration restoration command information when receiving failure information delivered by the orchestrator.

In addition, the controller is a software-defined network controller.

Description of drawings

Fig. 1 is a program flow chart of the network control method provided by the first embodiment of the present invention;

Fig. 2 is a program flow chart of the network control method provided by the second embodiment of the present invention;

FIG. 3 is a program flow chart of a network control method provided in a third embodiment of the present invention;

FIG. 4 is a program flow chart of a network control method provided in a fourth embodiment of the present invention;

FIG. 5 is a schematic structural diagram of an editor provided by a fifth embodiment of the present invention;

Fig. 6 is a schematic structural diagram of a controller provided by a sixth embodiment of the present invention.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, various embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. However, those of ordinary skill in the art can understand that, in each implementation manner of the present invention, many technical details are provided for readers to better understand the present application. However, even without these technical details and various changes and modifications based on the following implementation modes, the technical solution claimed in this application can also be realized.

The first embodiment of the present invention relates to a network control method applied to an orchestrator. The specific process is shown in Figure 1, including the following steps:

Step S101: Connect at least one controller.

Specifically, in this embodiment, the orchestrator is a software-defined network orchestrator, and the controller is a software-defined network controller. It can be understood that the above is only a specific example in this embodiment, and does not constitute a limitation. In other embodiments of the present invention, other types of controllers and schedulers may also be used, which will not be described here. List them one by one, and the details can be flexibly selected according to actual needs.

Specifically, in this step, the orchestrator obtains the controller to be connected according to the business requirement to be executed, and establishes a communication connection with the controller, so as to send information to the controller.

Step S102: sending a control command to the controller, where the control command includes configuration command information and configuration recovery command information.

Specifically, in this step, the configuration command information is command information set by the orchestrator according to business requirements, and is used to instruct the controller to perform configuration conversion so as to meet business needs. The configuration restore command information is used to instruct the controller to restore to the pre-configuration state.

Compared with the prior art, in the network control method provided by the embodiment of the present invention, when the orchestrator sends configuration command information to the controller, it also sends configuration restoration command information to the controller. When the controller finds that the communication connection with the orchestrator is interrupted, it can complete the configuration restoration according to the configuration restoration command information. In this way, it is ensured that when the orchestrator itself is abnormal, the controller can also effectively restore to the pre-configuration state.

The second embodiment of the present invention relates to a network control method, which is applied to an orchestrator, specifically as shown in Figure 2, including the following steps:

Step S201: Connect at least one controller.

Step S202: sending a control command to the controller, where the control command includes configuration command information and configuration restoration command information.

It can be understood that, since step S201 and step S202 in this embodiment are substantially the same as step S101 and step S102 in the first embodiment, for details, reference may be made to the specific description of the first embodiment, which will not be repeated here.

Step S203: Determine whether a plurality of controllers is abnormal; if at least one controller is abnormal, send failure information to the plurality of controllers.

Specifically, in this embodiment, after sending control commands to multiple controllers, it is confirmed whether abnormalities occur in multiple controllers, and if at least one controller is abnormal, failure information is sent to multiple controllers . This effectively ensures that after some controllers are abnormal, the orchestrator can instruct the controllers to restore the state before configuration.

It can be understood that the above is only a specific example in this embodiment and does not constitute a limitation. In other embodiments of the present invention, other methods are also possible. For example, each time the scheduler issues a control command, That is to confirm whether the controller receiving the control command is abnormal. If the controller is not abnormal, it will send the control command to the next controller. If the controller is abnormal, it will send the control command to the controller that has previously issued the control command. Delivery failure information. Only sending failure information to the controllers that have sent control commands before can effectively reduce the workload of the orchestrator and improve the work efficiency of the orchestrator.

Compared with the prior art, while retaining all the technical effects of the first embodiment, the second embodiment of the present invention confirms whether the controller is abnormal after sending the control command to the controller. When the controller is abnormal, Send failure commands to the controllers to ensure that when some controllers are abnormal, the rest of the controllers can restore the state before configuration.

The third embodiment of the present invention relates to a network control method, which is applied to a controller. The specific steps are shown in FIG. 3, including:

Step S301: Establish a communication connection with the arranger.

Step S302: Receive a control command issued by the arranger, the control command includes configuration command information and configuration recovery command information.

Step S303: Complete the configuration task according to the configuration command information.

Step S304: When the communication connection with the arranger is interrupted, the configuration recovery is completed according to the configuration recovery command information.

Compared with the prior art, in the network control method applied to the controller provided by the embodiment of the present invention, since the configuration restoration command information issued by the orchestrator is received in advance, when the controller discovers a communication connection terminal with the orchestrator, The controller can restore the pre-configuration state according to the configuration restoration command information, so as to ensure that even if the orchestrator is abnormal, the controller can restore the pre-configuration state.

It is not difficult to find that the third embodiment is a network control method applied to the controller side corresponding to the first embodiment, and this embodiment can be implemented in cooperation with the first embodiment. The relevant technical details mentioned in the first embodiment are still valid in this embodiment, and will not be repeated here in order to reduce repetition. Correspondingly, the relevant technical details mentioned in this implementation manner can also be applied in the first implementation manner.

The fourth embodiment of the present invention relates to a network control method, which is applied to a controller. The specific steps are shown in FIG. 4, including:

Step S401: Establish a communication connection with the arranger.

Step S402: Receive a control command issued by the arranger, the control command includes configuration command information and configuration recovery command information.

Step S403: Complete the configuration task according to the configuration command information.

Step S404: When the communication connection with the arranger is interrupted, the configuration recovery is completed according to the configuration recovery command information.

Step S405: When the failure information delivered by the orchestrator is received, the configuration recovery is completed according to the configuration recovery command information.

Compared with the prior art, in the network control method provided by the fourth embodiment of the present invention, when the controller receives the failure information sent by the orchestrator, it can complete the configuration recovery according to the configuration recovery command information. In this way, it is ensured that when the configuration fails, the controller can restore the pre-configuration state.

It is not difficult to find that the fourth embodiment is a network control method applied to the controller side corresponding to the second embodiment, and this embodiment can be implemented in cooperation with the second embodiment. The relevant technical details mentioned in the second embodiment are still valid in this embodiment, and will not be repeated here to reduce repetition. Correspondingly, the relevant technical details mentioned in this implementation manner can also be applied in the first implementation manner.

The fifth embodiment of the present invention relates to an orchestrator, as shown in FIG. 5 , including: at least one processor 501; and a memory 502 communicatively connected to at least one processor 501; The instructions executed by the processor 501 are executed by at least one processor 501, so that the at least one processor 501 can execute the above network control method.

Wherein, the memory 502 and the processor 501 are connected by a bus, and the bus may include any number of interconnected buses and bridges, and the bus connects one or more processors 501 and various circuits of the memory 502 together. The bus may also connect together various other circuits such as peripherals, voltage regulators, and power management circuits, all of which are well known in the art and therefore will not be further described herein. The bus interface provides an interface between the bus and the transceivers. A transceiver may be a single element or multiple elements, such as multiple receivers and transmitters, providing means for communicating with various other devices over a transmission medium. The data processed by the processor 501 is transmitted on the wireless medium through the antenna, and further, the antenna also receives the data and transmits the data to the processor 501 .

Processor 501 is responsible for managing the bus and general processing, and may also provide various functions including timing, peripheral interface, voltage regulation, power management and other control functions. And the memory 502 may be used to store data used by the processor 501 when performing operations.

The sixth embodiment of the present invention relates to a controller, as shown in FIG. 6 , including: at least one processor 601; and a memory 602 communicatively connected to at least one processor 601; The instructions executed by the processor 601 are executed by at least one processor 601, so that the at least one processor 601 can execute the network control method as described above.

Wherein, the memory 602 and the processor 601 are connected by a bus, and the bus may include any number of interconnected buses and bridges, and the bus connects one or more processors 601 and various circuits of the memory 602 together. The bus may also connect together various other circuits such as peripherals, voltage regulators, and power management circuits, all of which are well known in the art and therefore will not be further described herein. The bus interface provides an interface between the bus and the transceivers. A transceiver may be a single element or multiple elements, such as multiple receivers and transmitters, providing means for communicating with various other devices over a transmission medium. The data processed by the processor 601 is transmitted on the wireless medium through the antenna, and further, the antenna also receives the data and transmits the data to the processor 601 .

Processor 601 is responsible for managing the bus and general processing, and may also provide various functions including timing, peripheral interface, voltage regulation, power management, and other control functions. And the memory 602 may be used to store data used by the processor 601 when performing operations.

The seventh embodiment of the present invention relates to a computer-readable storage medium storing a computer program. The above method embodiments are implemented when the computer program is executed by the processor.

That is, those skilled in the art can understand that all or part of the steps in the method of the above-mentioned embodiments can be completed by instructing related hardware through a program, the program is stored in a storage medium, and includes several instructions to make a device ( It may be a single-chip microcomputer, a chip, etc.) or a processor (processor) to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk, and other media that can store program codes.

Those of ordinary skill in the art can understand that the above-mentioned embodiments are specific examples for realizing the present invention, and in practical applications, various changes can be made to it in form and details without departing from the spirit and spirit of the present invention. scope.

Claims (9)

1. A network control method is applied to an orchestrator and comprises the following steps:

connecting at least one controller;

issuing a control command to the controller, wherein the control command comprises configuration command information and configuration recovery command information issued together with the configuration command information;

after the issuing of the control command to the controller, the method further comprises:

determining whether an abnormality occurs in a plurality of the controllers;

and if at least one controller is abnormal, issuing failure information to the controllers.

2. The network control method according to claim 1, wherein the issuing of the control command to the controller specifically includes:

sequentially issuing the control commands to a plurality of controllers;

after each control command is issued, whether the controller currently receiving the control command is abnormal or not is confirmed;

and if so, issuing failure information to the controller which has issued the control command.

3. The network control method of claim 1, wherein the orchestrator is a software defined network orchestrator.

4. A network control method is applied to a controller and comprises the following steps:

establishing communication connection with an organizer and receiving a control command issued by the organizer, wherein the control command comprises configuration command information and configuration recovery command information issued together with the configuration command information;

completing a configuration task according to the configuration command information;

and when the communication connection with the orchestrator is interrupted, completing configuration recovery according to the configuration recovery command information.

5. The network control method of claim 4, wherein after completing the configuration task according to the configuration command information, the method further comprises:

and when failure information sent by the composer is received, completing configuration recovery according to the configuration recovery command information.

6. The network control method of claim 4, wherein the controller is a software defined network controller.

7. An organizer, comprising:

at least one processor; and the number of the first and second groups,

a memory communicatively coupled to the at least one processor; wherein,

the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the network control method of any of claims 1 to 3.

8. A controller, comprising:

at least one processor; and the number of the first and second groups,

a memory communicatively coupled to the at least one processor; wherein,

the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the network control method of any of claims 4 to 6.

9. A computer-readable storage medium storing a computer program, wherein the computer program, when executed by a processor, implements the network control method of any one of claims 1 to 6.

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