CN111294313B - Control method and controller of access equipment - Google Patents

Control method and controller of access equipment Download PDF

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CN111294313B
CN111294313B CN201811492740.6A CN201811492740A CN111294313B CN 111294313 B CN111294313 B CN 111294313B CN 201811492740 A CN201811492740 A CN 201811492740A CN 111294313 B CN111294313 B CN 111294313B
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file
yang file
yang
access
standard
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CN111294313A (en
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梁真铭
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China Telecom Corp Ltd
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China Telecom Corp Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/10—Network architectures or network communication protocols for network security for controlling access to devices or network resources
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/14—Session management

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Hardware Design (AREA)
  • Computer Security & Cryptography (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer And Data Communications (AREA)

Abstract

The disclosure provides a control method, a control device, a controller, a control system and a computer readable storage medium of access equipment, and relates to the technical field of communication. The control method of the access equipment comprises the following steps: the controller initiates a session to the access equipment through a NETCONF protocol; the controller receives a YANG file sent by the access equipment; the controller analyzes the YANG file and controls the access equipment to be allowed to be on line or the access equipment to be prevented from being on line according to the analysis result. In the access control process of the access equipment, the controller automatically verifies the equipment capability of the access equipment through the YANG file, and the reliability that the access equipment meets the capability standard is improved.

Description

Control method and controller of access equipment
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a method, an apparatus, a controller, a control system, and a computer-readable storage medium for controlling an access device.
Background
In the software defined network, the access device is online as follows: firstly, an SDN controller initiates a session to access equipment through a NETCONF protocol; then, the access device responds to the SDN controller for the capability set of the access device; and finally, the controller receives and stores the YANG file which is not in the local YANG file library of the controller from the access equipment, and simultaneously generates an application programming interface, so that the access equipment is on line.
The YANG file can be obtained by modeling specific network equipment through a YANG model, and is a data model format adopted by a Netconf network management protocol. IETF, BBF and other current international standard organizations establish corresponding YANG files with international standards, and enterprises establish YANG files with private standards.
Disclosure of Invention
One technical problem that this disclosure solves is how to improve the reliability of access devices meeting capability standards.
According to an aspect of the embodiments of the present disclosure, there is provided a method for controlling an access device, including: the controller initiates a session to the access equipment through a NETCONF protocol; the controller receives a YANG file sent by the access equipment; the controller analyzes the YANG file and controls the access equipment to be allowed to be on line or the access equipment to be prevented from being on line according to the analysis result.
In some embodiments, the controller parsing the YANG file and controlling whether the access device is permitted to go online or prevented from going online according to the parsing result comprises: when the controller analyzes that the YANG file meets at least one of the following conditions, the access equipment is permitted to be on line; otherwise, preventing the access equipment from getting online: the YANG file comprises a standard YANG file of the device type of the access device; alternatively, the YANG file contains all nodes of the standard YANG file, and all nodes of the contained standard YANG file are consistent with the node hierarchy of all nodes of the standard YANG file.
In some embodiments, the YANG file contains a standard YANG file for the device type to which the access device belongs including: the YANG file comprises each standard YANG file of the device type of the access device; the YANG file contains subfiles with the same name space and version number as the standard YANG files.
In some embodiments, further comprising: the controller receives equipment type information sent by the access equipment; the controller searches a standard YANG file library according to the device type information and determines a standard YANG file of the device type of the access device.
In some embodiments, further comprising: the controller establishes a standard YANG file library in advance by using each equipment type and the standard YANG file corresponding to each equipment type.
According to an aspect of an embodiment of the present disclosure, there is provided a controller including: the session initiating module is configured to initiate a session to the access equipment through a NETCONF protocol; the file receiving module is configured to receive a YANG file sent by the access device; and the file analysis module is configured to analyze the YANG file and control the access equipment to be allowed to be on line or the access equipment to be prevented from being on line according to the analysis result.
In some embodiments, the file parsing module is configured to: when the YANG file meets at least one of the following conditions, the access equipment is permitted to be on line; otherwise, preventing the access equipment from getting online: the YANG file comprises a standard YANG file of the device type of the access device; alternatively, the YANG file contains all nodes of the standard YANG file, and all nodes of the contained standard YANG file are consistent with the node hierarchy of all nodes of the standard YANG file.
In some embodiments, the YANG file contains a standard YANG file for the device type to which the access device belongs including: the YANG file comprises each standard YANG file of the device type of the access device; the YANG file contains subfiles with the same name space and version number as the standard YANG files.
In some embodiments, further comprising: the information receiving module is configured to receive the device type information sent by the access device; and the file searching module is configured to search a standard YANG file library according to the device type information and determine a standard YANG file of the device type to which the access device belongs.
In some embodiments, the system further comprises a document library establishing module configured to: and pre-establishing a standard YANG file library by using each equipment type and the standard YANG file corresponding to each equipment type.
According to another aspect of the embodiments of the present disclosure, there is provided a control system including the aforementioned controller and an access device.
According to still another aspect of the embodiments of the present disclosure, there is provided a control apparatus of an access device, including: a memory; and a processor coupled to the memory, the processor configured to execute the aforementioned control method of the access device based on instructions stored in the memory.
According to still another aspect of the embodiments of the present disclosure, there is provided a computer-readable storage medium, wherein the computer-readable storage medium stores computer instructions, and the computer instructions, when executed by a processor, implement the aforementioned control method of an access device.
According to the access control method and the access control device, in the access control process of the access device, the controller automatically verifies the device capability of the access device through the YANG file, and the reliability that the access device meets the capability standard is improved.
Other features of the present disclosure and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 shows a flow diagram of a control method of an access device according to some embodiments of the present disclosure.
Fig. 2A shows a schematic diagram of a YANG file sent by an access device.
Fig. 2B shows a schematic diagram of a YANG file sent by another access device.
Fig. 2C shows a schematic diagram of a YANG file transmitted by yet another access device.
Fig. 2D shows a standard YANG file for the type of device to which the access device belongs.
Fig. 3 is a flowchart illustrating a control method of an access device according to another embodiment of the disclosure.
Fig. 4 shows a schematic structural diagram of a controller according to some embodiments of the present disclosure.
Fig. 5 shows a schematic structural diagram of a control system of some embodiments of the present disclosure.
Fig. 6 shows a schematic structural diagram of a control device of an access apparatus according to some embodiments of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
The inventor finds that, in the related art, in the process of controlling the access device to be on-line by the SDN controller, only the access device is required to report the capability set, and whether the capability of the access device meets a certain capability standard cannot be judged. That is, for an access device that does not have standard capabilities or is capable of implementing non-compliant standards, the related art lacks authentication functionality. Due to lack of authentication function, the access device with any capability can be on-line through the controller, and the user or the controller cannot judge whether the access device meets the capability standard or not and cannot restrict the on-line of the access device, so that the reliability that the access device meets the capability standard in the related art is poor, and the method cannot be applied to the scene that the user or the controller has the capability requirement on the access device.
In view of the above problems, the present disclosure provides a method for controlling an access device, which can improve the reliability of the access device meeting the capability standard.
Some embodiments of the control method of the access device of the present disclosure are first described in conjunction with fig. 1.
Fig. 1 shows a flow diagram of a control method of an access device according to some embodiments of the present disclosure. As shown in fig. 1, the present embodiment includes steps S102 to S110.
In step S102, the controller initiates a session to the access device via the NETCONF protocol.
The controller may specifically be an SDN controller.
In step S104, the controller receives a YANG file transmitted by the access device.
To obtain the YANG file for the access device, the controller may actively request the YANG file from the access device. Fig. 2A, 2B, and 2C are schematic diagrams illustrating YANG files transmitted by three access devices, respectively.
In step S106, the controller parses the YANG file sent by the access device, and controls to permit the access device to go online or prevent the access device from going online according to the parsing result.
In some embodiments, the controller resolves the YANG file sent by the access device to at least one of the following conditions (1), (2), and permits the access device to go online; otherwise, the access device is prevented from being on line and an alarm is sent out.
(1) The YANG file directly contains the standard YANG file for the device type to which the access device belongs.
Fig. 2D shows a standard YANG file for the type of device to which the access device belongs. The number of the standard YANG files of the device type to which the access device belongs may be multiple, and therefore the YANG file sent by the access device needs to include each standard YANG file of the device type to which the access device belongs. The "standard YANG files containing the device type to which the access device belongs" may be, specifically, subfiles contained in the YANG file sent by the access device are the same as the namespace and the version number of the standard YANG file containing the device type to which the access device belongs.
(2) The YANG file contains all nodes of the standard YANG file, and all nodes of the contained standard YANG file are consistent with the node hierarchy of all nodes of the standard YANG file.
For example, the YANG file shown in fig. 2A satisfies the condition (2) compared to the standard YANG file shown in fig. 2D, while the YANG files shown in fig. 2B and 2C do not satisfy the condition (2) compared to the standard YANG file shown in fig. 2D.
In the above embodiment, in the access control process of the access device, the controller automatically verifies the device capability of the access device through the YANG file, and improves the reliability that the access device meets the capability standard. The embodiment is suitable for a scene of intensive management of the SDN on the batch of equipment, so that the SDN controller in the SDN network has the function of judging and restricting the capacity of the equipment. In addition, the embodiment is improved on the basis of the existing on-line process of the access equipment, and the YANG model is used for abstracting the capability of the access equipment, so that the method is easy to implement in the existing network.
Further embodiments of the control method of the access device of the present disclosure are described below with reference to fig. 3.
Fig. 3 is a flowchart illustrating a control method of an access device according to another embodiment of the disclosure. As shown in fig. 3, the present embodiment includes steps S301 to S306.
In step S301, the controller creates a standard YANG file library in advance using each device type and a standard YANG file corresponding to each device type.
The controller establishes a standard YANG file library outside the YANG file library, and the standard YANG file library comprises mapping relations between various equipment types and corresponding standard YANG files.
In step S302, the controller initiates a session to the access device via the NETCONF protocol.
In step S303, the controller receives the device type information transmitted by the access device.
For example, the access device may send the device type information (carrying the device type identifier) together when responding to the capability set to the controller, which includes the following specific examples:
<hello xmlns＝"urn:ietf:params:xml:ns:netconf:base:1.0">
<device>olt</device>
<capabilities>
<capability>urn:ietf:params:netconf:base:1.1</capability>
<capability>http://example.net/router/2.3/myfeature</capability>
</capabilities>
<session-id>4</session-id>
</hello>
wherein, the < device > field is equipment type information, which indicates that the equipment type is an optical line terminal equipment; the < capabilities > field is device capability set information, which indicates the device capabilities of the access device.
In step S304, the controller receives and saves the YANG file transmitted by the access device.
To obtain a YANG file for an access device, the controller may actively request a YANG file from the access device that is not present in its own YANG file repository.
In step S305, the controller searches the standard YANG file library according to the device type information, and determines a standard YANG file of the device type to which the access device belongs.
In step S306, the controller parses the YANG file sent by the access device, and controls to allow the access device to go online or prevent the access device from going online according to the parsing result.
The embodiment not only solves the problem that the existing access equipment has no capability requirement, but also fully considers the scenes that the access equipment of various equipment types possibly has different capability standards. The controller classifies the access equipment and corresponds to the standard YANG file for the access equipment by defining the equipment type information reported by the controller before the access equipment is online. Therefore, the embodiment realizes the classification authentication of the access devices with different functions, and improves the operation and maintenance efficiency of the access network.
Some embodiments of the disclosed controller are described below in conjunction with fig. 4.
Fig. 4 shows a schematic structural diagram of a controller according to some embodiments of the present disclosure. As shown in fig. 4, the controller 40 in the present embodiment includes:
a session initiating module 402 configured to initiate a session to an access device through a NETCONF protocol;
a file receiving module 404 configured to receive a YANG file sent by an access device;
and the file parsing module 406 is configured to parse the YANG file and control to allow the access device to be on line or prevent the access device from being on line according to the parsing result.
In the above embodiment, in the access control process of the access device, the controller automatically verifies the device capability of the access device through the YANG file, and improves the reliability that the access device meets the capability standard. The embodiment is suitable for a scene of intensive management of the SDN on the batch of equipment, so that the SDN controller in the SDN network has the function of judging and restricting the capacity of the equipment. In addition, the embodiment is improved on the basis of the existing on-line process of the access equipment, and the YANG model is used for abstracting the capability of the access equipment, so that the method is easy to implement in the existing network.
In some embodiments, the file parsing module 406 is configured to: when the YANG file meets at least one of the following conditions, the access equipment is permitted to be on line; otherwise, preventing the access equipment from getting online: the YANG file comprises a standard YANG file of the device type of the access device; alternatively, the YANG file contains all nodes of the standard YANG file, and all nodes of the contained standard YANG file are consistent with the node hierarchy of all nodes of the standard YANG file.
In some embodiments, the YANG file contains a standard YANG file for the device type to which the access device belongs including: the YANG file comprises each standard YANG file of the device type of the access device; the YANG file contains subfiles with the same name space and version number as the standard YANG files.
In some embodiments, the system further includes an information receiving module 403 configured to receive device type information sent by the access device; and the file searching module 405 is configured to search the standard YANG file library according to the device type information, and determine a standard YANG file of the device type to which the access device belongs.
In some embodiments, further comprising a document repository establishment module 401 configured to: and pre-establishing a standard YANG file library by using each equipment type and the standard YANG file corresponding to each equipment type.
The embodiment not only solves the problem that the existing access equipment has no capability requirement, but also fully considers the scenes that the access equipment of various equipment types possibly has different capability standards. The controller classifies the access equipment and corresponds to the standard YANG file for the access equipment by defining the equipment type information reported by the controller before the access equipment is online. Therefore, the embodiment realizes the classification authentication of the access devices with different functions, and improves the operation and maintenance efficiency of the access network.
Some embodiments of the disclosed control system are described below in conjunction with fig. 5.
Fig. 5 shows a schematic structural diagram of a control system of some embodiments of the present disclosure. As shown in fig. 5, the controller 50 in the present embodiment includes a controller 40 and an access device 502.
Fig. 6 shows a schematic structural diagram of a control device of an access apparatus according to some embodiments of the present disclosure. As shown in fig. 6, the control device 60 of the access apparatus of this embodiment includes: a memory 610 and a processor 620 coupled to the memory 610, the processor 620 being configured to execute the method of controlling the access device in any of the foregoing embodiments based on instructions stored in the memory 610.
Memory 610 may include, for example, system memory, fixed non-volatile storage media, and the like. The system memory stores, for example, an operating system, an application program, a Boot Loader (Boot Loader), and other programs.
The control means 60 of the access device may further comprise an input output interface 630, a network interface 640, a storage interface 650, etc. These interfaces 630, 640, 650 and the connections between the memory 610 and the processor 620 may be through a bus 660, for example. The input/output interface 630 provides a connection interface for input/output devices such as a display, a mouse, a keyboard, and a touch screen. The network interface 640 provides a connection interface for various networking devices. The storage interface 650 provides a connection interface for external storage devices such as an SD card and a usb disk.
The present disclosure also includes a computer readable storage medium having stored thereon computer instructions which, when executed by a processor, implement a method of controlling an access device in any of the foregoing embodiments.
As will be appreciated by one skilled in the art, embodiments of the present disclosure may be provided as a method, system, or computer program product. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable non-transitory storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the disclosure. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only exemplary of the present disclosure and is not intended to limit the present disclosure, so that any modification, equivalent replacement, or improvement made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure.

Claims (11)

1. A control method of an access device comprises the following steps:
the controller initiates a session to the access equipment through a NETCONF protocol;
the controller receives a YANG file sent by the access equipment;
the controller analyzes the YANG file and controls to permit the access equipment to be on-line or prevent the access equipment from being on-line according to an analysis result;
wherein the controller analyzes the YANG file, and controls to permit the access device to be on-line or prevent the access device from being on-line according to the analysis result, comprising:
when the controller analyzes that the YANG file meets at least one of the condition 1 and the condition 2, the access equipment is permitted to be on line; otherwise, preventing the access equipment from getting online:
condition 1, the YANG file comprises a standard YANG file of the device type of the access device;
condition 2, the YANG file contains all nodes of the standard YANG file, and all nodes of the standard YANG file are contained consistent with the node hierarchy of all nodes of the standard YANG file.
2. The control method of claim 1 wherein the YANG file containing a standard YANG file for the device type to which the access device belongs comprises: the YANG files comprise standard YANG files of the device types of the access devices; wherein the YANG file contains subfiles having the same namespace and version number as the respective standard YANG file.
3. The control method according to claim 1, further comprising:
the controller receives the equipment type information sent by the access equipment;
the controller searches a standard YANG file library according to the device type information and determines a standard YANG file of the device type of the access device.
4. The control method according to claim 3, further comprising:
the controller establishes a standard YANG file library in advance by using each equipment type and the standard YANG file corresponding to each equipment type.
5. A controller, comprising:
the session initiating module is configured to initiate a session to the access equipment through a NETCONF protocol;
the file receiving module is configured to receive a YANG file sent by the access device;
the file analysis module is configured to analyze the YANG file by the controller and control to permit the access equipment to be on-line or prevent the access equipment from being on-line according to an analysis result;
wherein the file parsing module is configured to:
when the YANG file is analyzed to meet at least one of the conditions 1 and 2, the access equipment is permitted to be on line; otherwise, preventing the access equipment from getting online:
condition 1, the YANG file comprises a standard YANG file of the device type of the access device;
condition 2, the YANG file contains all nodes of the standard YANG file, and all nodes of the standard YANG file are contained consistent with the node hierarchy of all nodes of the standard YANG file.
6. The controller of claim 5 wherein the YANG file containing a standard YANG file for the device type to which the access device belongs comprises: the YANG files comprise standard YANG files of the device types of the access devices; wherein the YANG file contains subfiles having the same namespace and version number as the respective standard YANG file.
7. The controller of claim 5, further comprising:
an information receiving module configured to receive the device type information sent by the access device;
and the file searching module is configured to search a standard YANG file library according to the device type information and determine a standard YANG file of the device type to which the access device belongs.
8. The controller of claim 7, further comprising a document library creation module configured to: and pre-establishing a standard YANG file library by using each equipment type and the standard YANG file corresponding to each equipment type.
9. A control system comprising a controller as claimed in any one of claims 5 to 8 and an access device.
10. A control apparatus of an access device, comprising:
a memory; and
a processor coupled to the memory, the processor configured to execute the method of controlling an access device of any of claims 1-4 based on instructions stored in the memory.
11. A computer-readable storage medium, wherein the computer-readable storage medium stores computer instructions which, when executed by a processor, implement the control method of an access device according to any one of claims 1 to 4.
CN201811492740.6A 2018-12-07 2018-12-07 Control method and controller of access equipment Active CN111294313B (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103281197A (en) * 2013-04-08 2013-09-04 浙江工商大学 ForCES configuration method based on NETCONF
WO2017054531A1 (en) * 2015-09-30 2017-04-06 中兴通讯股份有限公司 Yang model-based compiling method, and corresponding interface, component, and system
CN107566476A (en) * 2017-08-25 2018-01-09 中国联合网络通信集团有限公司 A kind of cut-in method, SDN controllers, forwarding unit and subscriber access system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103281197A (en) * 2013-04-08 2013-09-04 浙江工商大学 ForCES configuration method based on NETCONF
WO2017054531A1 (en) * 2015-09-30 2017-04-06 中兴通讯股份有限公司 Yang model-based compiling method, and corresponding interface, component, and system
CN107566476A (en) * 2017-08-25 2018-01-09 中国联合网络通信集团有限公司 A kind of cut-in method, SDN controllers, forwarding unit and subscriber access system

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