CN108156019B - SDN-based network derived alarm filtering system and method - Google Patents
SDN-based network derived alarm filtering system and method Download PDFInfo
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- CN108156019B CN108156019B CN201711224741.8A CN201711224741A CN108156019B CN 108156019 B CN108156019 B CN 108156019B CN 201711224741 A CN201711224741 A CN 201711224741A CN 108156019 B CN108156019 B CN 108156019B
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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
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0604—Management of faults, events, alarms or notifications using filtering, e.g. reduction of information by using priority, element types, position or time
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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
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0631—Management of faults, events, alarms or notifications using root cause analysis; using analysis of correlation between notifications, alarms or events based on decision criteria, e.g. hierarchy, tree or time analysis
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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
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0677—Localisation of faults
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/30—Peripheral units, e.g. input or output ports
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/70—Virtual switches
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Abstract
An SDN-based network-derived alarm filtering system and method, the system comprising: the system comprises an SDN controller, a first virtual machine, a shunt, a fault detector, a second virtual machine, at least one OVS virtual switch and a display end; the SDN controller is used for receiving alarm information, filtering the alarm information sent by the OVS virtual switch according to the information of the OVS virtual switch which is sent by the fault detector and is not in fault, and sending the unfiltered alarm information to the display end; the fault detector is used for verifying the fault condition of the OVS virtual switch passed by the transmission path; the technical scheme provided by the invention can effectively filter out derived alarms and solve the problems of low fault positioning efficiency and difficult operation and maintenance in the traditional network.
Description
Technical Field
The application relates to the technical field of information communication, in particular to a network derived alarm filtering system and method based on SDN.
Background
With the expansion of the internet, the speed and quality required for network transmission have correspondingly increased. In a communication network, if a certain physical device or software module fails, an alarm is generated. Since the network of a communication system is formed by interconnecting a plurality of devices, when there are a plurality of monitoring points in the network or the actual network has a large network scale, an abnormality of one component may cause a large number of alarms of the network, that is, a so-called alarm storm.
Therefore, in a large amount of alarms, the root alarm is often submerged in a large amount of derivative alarms, and the associated alarm processing is required to be performed every time the alarm information is received, which causes the problems of low fault positioning efficiency, difficult operation and maintenance and the like.
Disclosure of Invention
The invention provides a network-derived alarm filtering system and method based on an SDN (software defined network), aiming at solving the problems that a root alarm is difficult to find and a fault is difficult to locate due to huge alarm information in the traditional network; the efficiency of processing alarm information is improved.
In an SDN-based network-derived alarm filtering system, the improvement comprising: the system comprises an SDN controller, a first virtual machine, a shunt, a fault detector, a second virtual machine and at least one OVS virtual switch;
the SDN controller is used for collecting alarm information sent by the OVS virtual switch and generating a test service flow according to the alarm information; filtering out alarm information sent by the OVS virtual switch which does not have faults according to the fault condition of the OVS virtual switch sent by the fault detector;
the first virtual machine is used as a source end of the inspection service flow;
the flow divider is used for determining an OVS virtual switch through which inspection traffic flows in the process of being transmitted from the first virtual machine to the second virtual machine;
the fault detector is used for verifying the fault condition of the OVS virtual switch through which the inspection service flow passes;
the second virtual machine is used as a terminal for checking the service flow;
and the display end is used for displaying the pushed alarm information.
Further, the SDN controller includes: the system comprises an alarm information collection module, a service flow scheduling module, an alarm information filtering module and an alarm pushing module;
the alarm information collection module is used for collecting alarm information sent by the OVS virtual switch, sending the alarm information to the alarm information filtering module, and sending the equipment number of the OVS virtual switch sending the alarm information to the service flow scheduling module;
the service flow scheduling module is configured to use the first virtual machine as a source end and the second virtual machine as a terminal, generate a check service flow according to a received device number of the OVS virtual switch, check whether the check service flow can be normally communicated between the first virtual machine and the second virtual machine, if not, control the alarm collection module to send the alarm information to the alarm push module, and if yes, normally communicate;
the alarm information filtering module is used for caching the alarm information sent by the alarm collecting module, filtering the alarm information corresponding to the non-fault OVS virtual switch in the alarm information according to the non-fault OVS virtual switch information sent by the fault detector, and sending the non-filtered alarm information to the alarm pushing module;
and the alarm pushing module is used for pushing the received alarm information to a display end.
Further, the inspection service flow passes through the first virtual machine, the OVS virtual switch corresponding to the device number of the OVS virtual switch received by the service flow scheduling module, the fault detector and the second virtual machine, if the inspection service flow passes through the OVS virtual switch corresponding to the device number of the OVS virtual switch received by the service flow scheduling module, the inspection service flow enters the fault detector with the device information of the OVS virtual switch, and the fault detector stores the device information.
Further, the fault detector includes:
the storage module is used for storing initial equipment information of the OVS virtual switch;
and the comparison module is used for comparing the current equipment information of the OVS virtual switch carried by the inspection service flow with the initial equipment information of the OVS virtual switch in the storage module, if the current equipment information is consistent with the initial equipment information of the OVS virtual switch in the storage module, the OVS virtual switch is not in fault, the OVS virtual switch information is sent to the SDN controller, and if the current equipment information is inconsistent with the initial equipment information of the OVS virtual switch in the storage module, the OVS virtual switch is in fault.
The device information includes a device number, a source IP address, a destination IP address, source port information, destination port information, and a protocol type.
Further, the system further comprises a display end for displaying the pushed warning information.
In a method of SDN-based network-derived alarm filtering, the improvement comprising:
the SDN controller collects alarm information sent by an OVS virtual switch and generates a check service flow according to the alarm information;
the fault detector verifies the fault condition of the OVS virtual switch through which the inspection service flow passes;
and the SDN controller filters alarm information sent by the OVS virtual switch according to the information of the OVS virtual switch which is not in fault and sent by the fault detector, and sends the unfiltered alarm information to the display end.
Preferably, the SDN controller collects alarm information sent by the OVS virtual switch, and generates a verification service flow according to the alarm information, including:
collecting and caching alarm information of the OVS virtual switch;
generating a check service flow according to a received equipment number of the OVS virtual switch by using a first virtual machine as a source end and a second virtual machine as a terminal, checking whether the check service flow can be normally communicated between the first virtual machine and the second virtual machine, if not, pushing the alarm information to the display end, and if so, normally communicating;
preferably, the verifying the fault condition of the OVS virtual switch passed by the transmission path by the fault detector includes:
and comparing the current equipment information of the OVS virtual switch carried by the check service flow with the initial equipment information of the OVS virtual switch in the storage module, if the current equipment information is consistent with the initial equipment information of the OVS virtual switch in the storage module, the OVS virtual switch is not in fault, and sending the OVS virtual switch information to the SDN controller, and if the current equipment information is inconsistent with the initial equipment information of the OVS virtual switch in the storage module, the OVS virtual switch is in fault.
The invention has the beneficial effects that:
the application provides a network derived alarm filtering system and method based on SDN, wherein a check service flow from a first virtual machine to a second virtual machine is designed by extracting the equipment number of an OVS virtual switch reporting alarm information, and the flow scheduling characteristic of an SDN controller is utilized to make the check service flow selectively pass through a fault detector, and the fault detector makes secondary judgment on the equipment information of the OVS virtual switch reporting the alarm information and reports the equipment information in a targeted manner. According to the method and the device, a large amount of derived alarm information can be effectively filtered, the accuracy of fault positioning is improved, the intellectualization of network operation and maintenance is realized, and the efficiency of processing alarm is greatly improved.
Drawings
Fig. 1 is a schematic structural diagram of an SDN-based network-derived alarm filtering system in an embodiment provided in the present invention;
fig. 2 is a flowchart of a SDN-based network-derived alarm filtering method in an embodiment provided in the present invention;
fig. 3 is a schematic view of an application scenario of the network-derived alarm filtering method for SDN in embodiment 1 provided by the present invention;
fig. 4 is a schematic view of an application scenario of the network-derived alarm filtering method for SDN in embodiment 2 provided in the present invention.
Detailed Description
The following detailed description of the embodiments of the invention refers to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The invention provides a network derived alarm filtering system based on SDN, as shown in figure 1, the system comprises: the system comprises an SDN controller, a first virtual machine, a shunt, a fault detector, a second virtual machine, at least one OVS virtual switch and a display end;
the SDN controller is used for collecting alarm information sent by the OVS virtual switch and generating a test service flow according to the alarm information; filtering alarm information sent by the OVS virtual switch which does not have faults according to the fault condition of the OVS virtual switch which is sent by the fault detector and the information of the OVS virtual switch which does not have faults;
the first virtual machine is used as a source end of the inspection service flow;
the splitter is used for determining an OVS virtual switch through which inspection service flows flow in the process of being transmitted from the first virtual machine to the second virtual machine;
the fault detector is used for verifying the fault condition of the OVS virtual switch through which the inspection service flow passes;
the second virtual machine is used as a terminal for checking the service flow;
and the display end is used for displaying the pushed alarm information.
And the alarm information displayed by the display end is root alarm information.
Specifically, the SDN controller includes: the system comprises an alarm information collection module, a service flow scheduling module, an alarm information filtering module and an alarm pushing module;
the warning information collecting module is used for collecting warning information sent by the OVS virtual switch, sending the warning information to the warning information filtering module, and sending the equipment number of the OVS virtual switch which sends the warning information to the service flow scheduling module;
the service flow scheduling module is configured to use the first virtual machine as a source end and the second virtual machine as a terminal, generate a check service flow according to a received device number of the OVS virtual switch, check whether the check service flow can be normally communicated between the first virtual machine and the second virtual machine, if not, control the alarm collection module to send the alarm information to the alarm push module, and if so, normally communicate;
the alarm information filtering module is used for caching the alarm information sent by the alarm collecting module, filtering the alarm information corresponding to the non-fault OVS virtual switch in the alarm information according to the non-fault OVS virtual switch information sent by the fault detector, and sending the non-filtered alarm information to the alarm pushing module;
and the alarm pushing module is used for pushing the received alarm information to the display end.
Specifically, the inspection service flow passes through the first virtual machine, the OVS virtual switch corresponding to the device number of the OVS virtual switch received by the service flow scheduling module, the fault detector and the second virtual machine, if the inspection service flow passes through the OVS virtual switch corresponding to the device number of the OVS virtual switch received by the service flow scheduling module, the inspection service flow enters the fault detector along with the device information of the OVS virtual switch, and the fault detector stores the device information.
Specifically, the fault detector includes:
the storage module is used for storing initial equipment information of the OVS virtual switch;
and the comparison module is used for comparing the current equipment information of the OVS virtual switch carried by the inspection service flow with the initial equipment information of the OVS virtual switch in the storage module, if the current equipment information is consistent with the initial equipment information of the OVS virtual switch in the storage module, the OVS virtual switch is not in fault, the OVS virtual switch information is sent to the SDN controller, and if the current equipment information is inconsistent with the initial equipment information of the OVS virtual switch in the storage module, the OVS virtual switch is in fault.
The device information includes a device number, a source IP address, a destination IP address, source port information, destination port information, and a protocol type.
The system also comprises a display end used for displaying the pushed warning information.
The invention provides a network derived alarm filtering method based on an SDN (software defined network), as shown in figure 2, the method comprises the following steps:
step 1: the SDN controller collects alarm information sent by an OVS virtual switch and generates a check service flow according to the alarm information;
and 2, step: the fault detector verifies the fault condition of the OVS virtual switch through which the inspection service flow passes;
and 3, step 3: and the SDN controller filters alarm information sent by the OVS virtual switch according to the fault-free OVS virtual switch information sent by the fault detector, and sends the non-filtered alarm information to the display terminal. Specifically, the step 1 includes:
collecting and caching alarm information of the OVS virtual switch;
generating a check service flow according to a received equipment number of the OVS virtual switch by using a first virtual machine as a source end and a second virtual machine as a terminal, checking whether the check service flow can be normally communicated between the first virtual machine and the second virtual machine, if not, pushing the alarm information to the display end, and if so, normally communicating;
specifically, the step 2 includes:
comparing current equipment information of the OVS virtual switch carried by the inspection service flow with initial equipment information of the OVS virtual switch in the storage module, if the current equipment information is consistent with the initial equipment information of the OVS virtual switch in the storage module, the OVS virtual switch is not in fault, and sending the OVS virtual switch information to the SDN controller, and if the current equipment information is inconsistent with the initial equipment information of the OVS virtual switch in the storage module, the OVS virtual switch is in fault;
the invention provides an embodiment 1 of a network-derived alarm filtering method based on an SDN, wherein an alarm information collection module collects alarm information, sends the alarm information to an alarm information filtering module for caching, and sends the alarm information to a service flow scheduling module for generating a check service flow, as shown in FIG. 3, an OVS1 and an OVS2 are OVS virtual switches sending the alarm information, at the moment, normal communication can be carried out between a first virtual machine and a second virtual machine, and the check service flow passes through the OVS1 and the OVS2, the check service flow substitutes equipment information of the OVS1 and the OVS2 into a fault detector for detection, the fault detector feeds a detection result back to an alarm information filtering module of an SDN controller, and the alarm information filtering module reports the alarm information to an alarm pushing module or filters the alarm information according to the detection result.
In embodiment 2 of the SDN-based network-derived alarm filtering method, the alarm information collection module collects alarm information, sends the alarm information to the alarm information filtering module for caching, and sends the alarm information to the service flow scheduling module to generate a check service flow, as shown in fig. 4, OVS1 and OVS2 are OVS virtual switches that send alarm information, at this time, normal communication can be performed between a first virtual machine and a second virtual machine, a single check service flow cannot flow through OVS2, the check service flow substitutes device information of OVS1 into a fault detector for detection, the fault detector feeds detection results back to the alarm information filtering module of the SDN controller, and the alarm information filtering module reports or filters alarm information sent by OVS1 according to the detection results; the fault detector can not receive the equipment information of the OVS2, and reports the alarm sent by the OVS2 to the display end directly.
In embodiment 3 of the SDN-based network-derived alarm filtering method, the alarm information collection module collects alarm information, sends the alarm information to the alarm information filtering module for caching, and sends the alarm information to the service flow scheduling module to generate a check service flow, and if the first virtual machine and the second virtual machine cannot communicate with each other, the service flow scheduling module directly reports all the alarm information in the alarm collection module to the alarm pushing module.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable 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 application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. 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.
Finally, it should be noted that: although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.
Claims (8)
1. An SDN-based network-derived alarm filtering system, the system comprising: the system comprises an SDN controller, a first virtual machine, a shunt, a fault detector, a second virtual machine and at least one OVS virtual switch;
the SDN controller is used for collecting alarm information sent by the OVS virtual switch and generating a test service flow according to the alarm information; filtering out alarm information sent by the OVS virtual switch without faults according to the fault condition of the OVS virtual switch sent by the fault detector;
the first virtual machine is used as a source end of the inspection service flow;
the flow divider is used for determining a transmission path of the inspection service flow according to the OVS virtual switch which sends alarm information to the SDN controller;
the fault detector is used for verifying the fault condition of the OVS virtual switch through which the inspection service flow passes;
and the second virtual machine is used as the terminal for checking the service flow.
2. The system of claim 1, wherein the SDN controller comprises: the system comprises an alarm information collection module, a service flow scheduling module, an alarm information filtering module and an alarm pushing module;
the warning information collecting module is used for collecting warning information sent by the OVS virtual switch, sending the warning information to the warning information filtering module, and sending the equipment number of the OVS virtual switch which sends the warning information to the service flow scheduling module;
the service flow scheduling module is configured to use the first virtual machine as a source end and the second virtual machine as a terminal, generate a check service flow according to a received device number of the OVS virtual switch, check whether the check service flow can be normally communicated between the first virtual machine and the second virtual machine, if not, control the alarm information collection module to send the alarm information to the alarm push module, and if so, normally communicate;
the alarm information filtering module is used for caching the alarm information sent by the alarm information collecting module, filtering the alarm information corresponding to the non-fault OVS virtual switch in the alarm information according to the non-fault OVS virtual switch information sent by the fault detector, and sending the non-filtered alarm information to the alarm pushing module;
and the alarm pushing module is used for pushing the received alarm information to the display end.
3. The system according to claim 2, wherein the inspection traffic flows pass through the first virtual machine, the OVS virtual switch corresponding to the device number of the OVS virtual switch received by the traffic scheduling module, the fault detector, and the second virtual machine, and if the inspection traffic flows pass through the OVS virtual switch corresponding to the device number of the OVS virtual switch received by the traffic scheduling module, the inspection traffic flows carry the device information of the OVS virtual switch to enter the fault detector, and the fault detector stores the device information.
4. The system of claim 1, wherein the fault detector comprises:
the storage module is used for storing initial equipment information of the OVS virtual switch;
a comparison module, configured to compare current device information of the OVS virtual switch carried by the inspection service flow with initial device information of the OVS virtual switch in the storage module, if the current device information is consistent with the initial device information of the OVS virtual switch in the storage module, the OVS virtual switch is not in fault, and send the OVS virtual switch information to the SDN controller, and if the current device information is inconsistent with the initial device information of the OVS virtual switch or the OVS virtual switch is not received, the OVS virtual switch is in fault;
the device information includes a source IP address, a destination IP address, source port information, destination port information, and a protocol type.
5. The system of claim 1, further comprising a display for displaying the pushed alert information.
6. A network-derived alarm filtering method for an SDN of an SDN-based network-derived alarm filtering system according to any one of claims 1-5, the method comprising:
the SDN controller collects alarm information sent by an OVS virtual switch and generates a check service flow according to the alarm information;
the fault detector verifies the fault condition of the OVS virtual switch through which the inspection service flow passes;
and the SDN controller filters alarm information sent by the OVS virtual switch according to the fault-free OVS virtual switch information sent by the fault detector, and sends the non-filtered alarm information to a display end.
7. The method of claim 6, wherein the SDN controller collects alarm information issued by OVS virtual switches and generates inspection traffic flows according to the alarm information, comprising:
collecting and caching alarm information of the OVS virtual switch;
and generating a check service stream according to the received equipment number of the OVS virtual switch by using the first virtual machine as a source end and the second virtual machine as a terminal, checking whether the check service stream can be normally communicated between the first virtual machine and the second virtual machine, if not, pushing the alarm information to the display end, and if so, normally communicating.
8. The method of claim 6 wherein said fault detector verifying said condition of failure of the OVS virtual switch through which said inspection traffic flows, comprises:
and comparing current equipment information of the OVS virtual switch carried by the inspection service flow with initial equipment information of the OVS virtual switch in a storage module, if the current equipment information is consistent with the initial equipment information of the OVS virtual switch in the storage module, the OVS virtual switch is not in fault, and sending the OVS virtual switch information to the SDN controller, and if the current equipment information is inconsistent with the initial equipment information of the OVS virtual switch in the storage module, the OVS virtual switch is in fault.
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| CN115396287B (en) * | 2022-08-29 | 2023-05-12 | 武汉烽火技术服务有限公司 | Fault analysis method and device |
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