CN111740858B - Operation monitoring system and method of software defined network controller - Google Patents
Operation monitoring system and method of software defined network controller Download PDFInfo
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- CN111740858B CN111740858B CN202010515036.9A CN202010515036A CN111740858B CN 111740858 B CN111740858 B CN 111740858B CN 202010515036 A CN202010515036 A CN 202010515036A CN 111740858 B CN111740858 B CN 111740858B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/14—Network analysis or design
- H04L41/145—Network analysis or design involving simulating, designing, planning or modelling of a network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0803—Configuration setting
- H04L41/0823—Configuration setting characterised by the purposes of a change of settings, e.g. optimising configuration for enhancing reliability
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
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Abstract
The invention provides an operation monitoring system and method of a software defined network controller, comprising the following steps: the detection self-defining module stores a pre-established self-defining detection model; the test module is used for establishing active connection with a southbound interface of the software defined network controller and running a custom detection model to acquire running state data of the software defined network controller; the detection analysis module compares the running state data with expected data, comprehensively analyzes the service control state, the concurrent connection capability and the running state of the controller of the software defined network controller, and obtains a detection result; and the concurrency quantity adjusting module is used for adjusting the concurrency quantity of the service issued by the software defined network controller according to the detection result. The method can perform custom configuration check on various indexes of the service issued by the software defined network, provide a means for checking the southbound connection capability of the software defined network controller, make up for the gap of the software defined network controller about the lack of an effective general checking method for the service issued and southbound bearing capability, and provide assistance for the software defined network controller in the aspects of deployment, operation, management and the like.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to an operation monitoring system and method for a software defined network controller.
Background
The software defined network (Software Defined Network, SDN) is a novel network innovation architecture proposed by the cleaning-plate subject research group of the university of Steady, is an implementation mode of network virtualization, and aims to solve the problems of slow protocol development, lack of consistent policy control, poor expansibility, strong manufacturer dependence and the like caused by the fact that the existing network is too complex. The core technology OpenFlow separates the control surface from the data surface of the network equipment, so that flexible control of network flow is realized, the network becomes more intelligent as a pipeline, and a good platform is provided for innovation of the core network and application.
The whole framework of the SDN is divided into a data plane, a control plane and an application plane from bottom to top (from south to north), wherein the data plane consists of network general hardware such as a switch and the like, and all network devices are connected through SDN data paths formed by different rules; the control plane comprises a logically centered SDN controller which grasps global network information and takes charge of controlling various forwarding rules; the application plane contains various SDN-based network applications, and a user can program and deploy new applications without concern for the underlying details. The control plane and the data plane communicate through SDN Control Data Plane Interface (CDPI) and have unified communication standard, which is mainly responsible for transmitting the forwarding rule in the controller to the forwarding equipment, and the most mainly applied is OpenFlow protocol.
The interface in SDN has openness, takes the controller as a logic center, the southbound interface is responsible for communicating with a data plane, the northbound interface is responsible for communicating with an application plane, and the eastbound interface is responsible for communicating among multiple controllers. The most popular southbound interface CDPI employs the OpenFlow protocol. The OpenFlow is most basically characterized in that forwarding rules are matched based on a Flow (Flow) concept, each switch maintains a Flow Table (Flow Table), forwarding is performed according to the forwarding rules in the Flow Table, and establishment, maintenance and issuing of the Flow Table are completed by a controller. Aiming at the northbound interface, the application program invokes various required network resources through northbound interface programming, so that quick configuration and deployment of the network are realized. The east-west interface enables the controller to have expandability, and provides technical support for load balancing and performance improvement.
At present, in the prior art, only interface call monitoring is performed on an interface of an SDN controller, state monitoring cannot be performed on a service, and the situation that an empty flow table or an incomplete flow table possibly issued by the SDN controller cannot be monitored, so that an SDN switch cannot work according to expectations is caused.
In the operation process of the SDN controller, an effective means is lacking in judging the operation state of the controller, the integrity of the service state issued to the switch by the SDN controller, the issuing efficiency and other related parameters cannot be checked through the conventional means, and meanwhile, the concurrent connection capability of the SDN controller for connecting the SDN gateway lacks effective supporting means in the aspects of deployment, operation and management.
Disclosure of Invention
The invention provides an operation monitoring system and method of a software defined network controller, and aims to solve the technical problem that the prior art has no effective checking means on the operation state of the controller related to service and the concurrent connection capability of the controller.
An operation monitoring system of a software defined network controller, comprising:
the detection self-defining module stores a pre-established self-defining detection model;
the test module is connected with the detection self-defining module, and establishes active connection with a southbound interface of the software defined network controller, and is used for operating the self-defining detection model to obtain the operating state data of the software defined network controller;
the detection analysis module is connected with the test module, compares the running state data with expected data, comprehensively analyzes the service control state, the concurrent connection capability and the running state of the controller of the software defined network controller, and obtains a detection result;
and the concurrency quantity adjusting module is respectively connected with the testing module and the detection analysis module and is used for adjusting the concurrency quantity of the service issued by the software defined network controller according to the detection result.
Further, the custom detection model comprises one or more items of to-be-detected contents in preset service trigger settings, service data acquisition conditions, service detection custom module state transition check points, expected issuing flow tables, configuration data and expected issuing time.
Further, the detection result comprises time offset of service state transition, and the integrity and accuracy of expected issued data.
Further, the system also comprises a modification module which is connected with the detection customization module and is used for modifying the customization detection model when the customization detection model is operated;
the test module is also used for reading and running the modified custom detection model in real time.
Further, the method further comprises the following steps:
the judging module is connected with the detection and analysis module and is used for judging whether the running state of the software defined network controller is abnormal or not according to the detection result;
the reminding module is connected with the judging module and used for reminding monitoring personnel when abnormal conditions occur in the running state of the software defined network controller.
Further, the device also comprises a display module which is connected with the detection and analysis module and used for displaying the detection result.
Further, the test module maintains the establishment of connection with the southbound interface of the software defined network controller through the openflow protocol and the OVSDB protocol.
An operation monitoring method of a software defined network controller, which uses the operation monitoring system of the software defined network controller, comprises the following steps:
a1, storing a pre-established custom detection model;
a2, establishing active connection with a southbound interface of the software defined network controller;
a3, running a custom detection model to obtain running state data of the software defined network controller;
step A4, comparing the running state data with expected data, comprehensively analyzing the service control state, concurrent connection capacity and running state of the controller of the software defined network, and obtaining a detection result;
and step A5, adjusting the concurrency quantity of the software defined network controller to the gateway according to the detection result.
Further, in step A3, the method further includes the following steps:
a31, modifying the custom detection model when the custom detection model is operated;
and step A32, reading and running the modified custom detection model in real time.
Further, the method also comprises the following steps:
step A6, judging whether the running state of the software defined network controller is abnormal or not according to the detection result, if not, entering step A7;
and step A7, reminding monitoring personnel when abnormal conditions occur in the running state of the software defined network controller.
The beneficial technical effects of the invention are as follows: the operation monitoring system of the software defined network controller can carry out custom configuration check on various indexes of the service issued by the software defined network, provides a means for checking the southbound connection capability of the software defined network controller, makes up the gap of the software defined network controller about the issue service and the lack of an effective general checking method for southbound bearing capability, and provides assistance for the software defined network controller in the aspects of deployment, operation and management and the like.
Drawings
FIG. 1 is a block diagram of a software defined network controller operation monitoring system according to the present invention;
FIGS. 2-4 are flowcharts of steps of a method for monitoring operation of a software defined network controller according to the present invention;
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
The invention is further described below with reference to the drawings and specific examples, which are not intended to be limiting.
Referring to fig. 1, an operation monitoring system of a software defined network controller, comprising:
the detection custom module (1) stores a pre-established custom detection model;
the test module (2) is connected with the detection self-defining module (1) and establishes active connection with a southbound interface of the software defined network controller, and is used for running the self-defining detection model and obtaining running state data of the software defined network controller;
the detection analysis module (3) is connected with the test module (2) and compares the running state data with expected data, and comprehensively analyzes the service control state, the concurrent connection capability and the running state of the controller of the software defined network controller to obtain a detection result;
and the concurrency quantity adjusting module (4) is respectively connected with the testing module (2) and the detection analysis module (3) and adjusts the concurrency quantity of the service issued by the software defined network controller according to the detection result.
Further, the custom detection model comprises one or more items of content to be detected in preset service trigger setting, service data acquisition conditions, service state transition check points, expected issuing flow tables, configuration data and expected issuing time.
In this embodiment, a corresponding custom detection model may be defined according to characteristics of various services, and a service state transition checkpoint or other content to be detected may be added for different services as required.
In this embodiment, the service control state, the concurrent connection capability and the controller operation state of the software defined network controller are comprehensively analyzed to obtain a more comprehensive operation state of the software defined network controller.
Further, the detection result comprises time offset of service state transition, and the integrity and accuracy of expected issued data.
Further, the system also comprises a modification module (5) which is connected with the detection customization module (1) and is used for modifying the customization detection model when the customization detection model is operated;
the test module (2) is also used for reading and running the modified custom detection model in real time.
Preferably, the modification includes addition, deletion, and modification. In the operation process of the custom detection model, the test module (2) can read the modified custom detection model in real time and change the test behavior.
Further, the method further comprises the following steps:
the judging module (6) is connected with the detection and analysis module (3) and is used for judging whether the running state of the software defined network controller is abnormal or not according to the detection result;
the reminding module (7) is connected with the judging module (6) and used for reminding monitoring personnel when abnormal conditions occur in the running state of the software defined network controller.
Further, the device also comprises a display module (8) which is connected with the detection analysis module (3) and used for displaying the detection result.
Furthermore, the test module (2) maintains to establish connection with the southbound interface of the software defined network controller through an openflow protocol and an OVSDB protocol.
The operation state data acquired by the test module (2) not only comprises service data, but also comprises related data of the switch, so that the service data and the switch state can be maintained.
The operation monitoring system of the software defined network controller can carry out custom configuration check on various indexes of the service issued by the software defined network, provides a means for checking the southbound connection capability of the software defined network controller, makes up the gap of the software defined network controller about the service issued and the lack of an effective checking method for southbound bearing capability, and provides assistance for the software defined network controller in the aspects of deployment, operation, management and the like.
Referring to fig. 2, the present invention further provides a method for monitoring operation of a software defined network controller, which is characterized by using the foregoing operation monitoring system of a software defined network controller, including the following steps:
a1, storing a pre-established custom detection model;
a2, establishing active connection with a southbound interface of the software defined network controller;
a3, running a custom detection model to obtain running state data of the software defined network controller;
step A4, comparing the running state data with expected data, comprehensively analyzing the service control state, concurrent connection capacity and running state of the controller of the software defined network, and obtaining a detection result;
and step A5, adjusting the concurrency quantity of the software defined network controller aiming at the gateway according to the detection result.
Further, referring to fig. 3, in step A3, the method further includes the following steps:
a31, modifying the custom detection model when the custom detection model is operated;
and step A32, reading and running the modified custom detection model in real time.
Further, referring to fig. 4, the method further includes the following steps:
step A6, judging whether the running state of the software defined network controller is abnormal or not according to the detection result, if not, entering step A7;
and step A7, reminding monitoring personnel when abnormal conditions occur in the running state of the software defined network controller.
The foregoing is merely illustrative of the preferred embodiments of the present invention and is not intended to limit the embodiments and scope of the present invention, and it should be appreciated by those skilled in the art that equivalent substitutions and obvious variations may be made using the description and illustrations of the present invention, and are intended to be included in the scope of the present invention.
Claims (10)
1. An operation monitoring system of a software defined network controller, comprising:
the detection custom module (1) stores a pre-established custom detection model;
the test module (2) is connected with the detection self-defining module (1) and is used for establishing active connection with a southbound interface of the software defined network controller and running the self-defining detection model to acquire running state data of the software defined network controller;
the detection analysis module (3) is connected with the test module (2) and compares the running state data with expected data, and comprehensively analyzes the service control state, concurrent connection capacity and controller running state of the software defined network controller to obtain a detection result;
and the concurrency quantity adjusting module (4) is respectively connected with the testing module (2) and the detection analysis module (3) and adjusts the concurrency quantity of the service issued by the software defined network controller according to the detection result.
2. The system of claim 1, wherein the custom detection model includes one or more of a predefined service trigger setting, service data acquisition conditions, service state transition checkpoints, expected delivery flow table and configuration data, expected delivery time.
3. A software defined network controller operation monitoring system according to claim 2 wherein the detection results include time offset of traffic state transitions, expected data delivery integrity and accuracy.
4. The operation monitoring system of a software defined network controller according to claim 1, further comprising a modification module (5) connected to said detection customization module (1) for modifying said customization detection model when said customization detection model is operated;
the test module (2) is further used for reading and running the modified custom detection model in real time.
5. The operation monitoring system of a software defined network controller according to claim 1, further comprising:
the judging module (6) is connected with the detection and analysis module (3) and is used for judging whether the running state of the software defined network controller is abnormal or not according to the detection result;
and the reminding module (7) is connected with the judging module (6) and is used for reminding monitoring personnel when abnormal conditions occur in the running state of the software defined network controller.
6. A system for monitoring the operation of a software defined network controller according to claim 1, further comprising a display module (8) coupled to said detection analysis module (3) for displaying said detection results.
7. A software defined network controller operation monitoring system according to claim 1, characterized in that the test module (2) maintains a connection with the software defined network controller's southbound interface via openflow protocol and OVSDB protocol.
8. A method for monitoring the operation of a software defined network controller, characterized in that a software defined network controller operation monitoring system according to any one of claims 1-7 is used, comprising the steps of:
a1, storing a pre-established custom detection model;
a2, establishing active connection with a southbound interface of the software defined network controller;
step A3, operating the custom detection model to obtain the operation state data of the software defined network controller;
step A4, comparing the running state data with expected data, comprehensively analyzing the service control state, concurrent connection capacity and controller running state of the software defined network controller, and obtaining a detection result;
and step A5, adjusting the concurrency quantity of the service issued by the software defined network controller according to the detection result.
9. The method for monitoring the operation of a software defined network controller according to claim 8, further comprising the steps of, in said step A3:
a31, modifying the custom detection model when the custom detection model is operated;
and step A32, reading and running the modified custom detection model in real time.
10. The method for monitoring operation of a software defined network controller according to claim 8 further comprising the steps of:
step A6, judging whether the running state of the software defined network controller is abnormal or not according to the detection result, and if not, entering step A7;
and step A7, reminding monitoring personnel when abnormal conditions occur in the running state of the software defined network controller.
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