CN112291075B - Network fault positioning method and device, computer equipment and storage medium - Google Patents
Network fault positioning method and device, computer equipment and storage medium Download PDFInfo
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- CN112291075B CN112291075B CN201910668662.9A CN201910668662A CN112291075B CN 112291075 B CN112291075 B CN 112291075B CN 201910668662 A CN201910668662 A CN 201910668662A CN 112291075 B CN112291075 B CN 112291075B
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- 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
- H04L41/065—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 involving logical or physical relationship, e.g. grouping and hierarchies
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- 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
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- 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
- H04L41/12—Discovery or management of network topologies
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Abstract
The embodiment of the invention relates to the technical field and discloses a network fault positioning method, which comprises the following steps: acquiring user state information in the network; judging whether the network equipment in the network has a fault alarm according to the user state information; when the network equipment has a fault alarm, acquiring two-layer path tree topology information of all users under the network equipment; and determining the network equipment node information with faults in the network according to the two-layer path tree topology information. Through the mode, the embodiment of the invention realizes the beneficial effects of monitoring the fluctuation of the data of the user account of the network equipment in real time and filtering interference factors through a TCA double-factor clustering algorithm.
Description
Technical Field
The embodiment of the invention relates to the technical field of network fault diagnosis, in particular to a network fault positioning method and device, computer equipment and a storage medium.
Background
At present, with the development of internet technology and the development of broadband networks by various telecom operators, the broadband service of home customers is very popular. However, as the number of devices and users increases, network failure monitoring and security service of home broadband becomes more and more important. In the existing home broadband service fault monitoring process, when a large number of home broadband services have faults, an effective and automatic service fault monitoring system does not exist, and the broadband faults are often judged by relying on the traditional OMC network management monitoring and complaint work order means. Referring to fig. 1, in the existing network fault monitoring process, only the OMC network manager monitors the device alarm information, and then manually analyzes the alarm items by item to determine whether the service is affected, and notifies the scheduling and emergency repair after confirming that the service is really damaged. For the complaint work order, the fault can be confirmed only after the complaint of the user is intensively outbreaked after the service is damaged.
Therefore, in implementing the embodiments of the present invention, the inventors found that: the broadband network fault determination method is time-consuming, labor-consuming and low in efficiency, and fault early warning is greatly lagged behind user complaints, so that maintenance is extremely passive. Specifically, the existing home-wide service fault discovery and early warning method has the following disadvantages:
1) lack of effective broadband service monitoring means: the home broadband service coverage is wide, the user base number is huge, millions of user scales pay attention to the OMC network management alarm of the equipment by means of the traditional monitoring means, the means is single, the OMC alarm faces to the equipment level and cannot reach the user level, the equipment alarm cannot completely represent the damage of the user service, and certain deviation exists for judging the real service fault. Meanwhile, the alarm cannot be associated with a specific user, the resource management platform needs to be manually inquired to position user information, and the user fault early warning is difficult to effectively achieve.
2) Failure discovery is not timely: the traditional monitoring method analyzes and judges whether the influence is generated on the user service or not by monitoring the OMC network management alarm one by one, and is time-consuming, labor-consuming and low in efficiency, so that the damage of the user service is difficult to find out in time; and through the complaint work order early warning mode, the occurrence of the fault is known after the complaint is collectively outbreaked, which belongs to post-warning and is contrary to the maintenance professional active early warning target.
3) Failure recovery validation is slow: the home broadband service volume is huge, after the batch fault rush repair, the traditional service confirmation modes such as door-to-door, return visit, data background confirmation and the like not only need to invest a large amount of labor time, but also can involve the confirmation of cross-professional departments, often needs secondary or even multiple confirmation, and is difficult to achieve one-time effective confirmation.
Therefore, a method for locating a fault in a broadband network, which can intelligently analyze and diagnose the fault, is needed.
Disclosure of Invention
In view of the foregoing, embodiments of the present invention provide a network fault location early warning method, which overcomes or at least partially solves the above problems.
According to an aspect of an embodiment of the present invention, a network fault location early warning method is provided, where the method includes:
acquiring user state information in the network;
judging whether the network equipment in the network has a fault alarm according to the user state information;
when the network equipment has a fault alarm, acquiring two-layer path tree topology information of all users under the network equipment;
and determining the network equipment node information with faults in the network according to the two-layer path tree topology information.
In an optional manner, the determining whether a network device in the network has a failure alarm according to the user status information includes:
acquiring the number of users of which the user states are offline under each network device in the network;
and when the number of the users is larger than a preset first threshold value, the network equipment generates fault alarm.
In an optional manner, the obtaining the topology information of the two-layer path tree of all users under the network device includes:
acquiring all user information under the network equipment;
acquiring information of network equipment passed by the user according to the user information;
and forming two-layer path tree topology information of the user according to the network equipment information passed by the user.
In an optional manner, after the obtaining the topology information of the two-layer path tree of all users under the network device, the method further includes:
obtaining OMC alarm, centralized fault alarm and database logic table of the network equipment;
analyzing the OMC alarm, the centralized fault alarm and a database logic table through a dual-cause clustering algorithm to obtain the offline reason of the user;
and when the offline reason of the user is power failure and offline, deleting the user.
According to another aspect of the embodiments of the present invention, there is provided a network positioning apparatus, including:
the user state information acquisition module is used for acquiring user state information in the network;
the judging module is used for judging whether the network equipment in the network has fault alarm according to the user state information;
the topology analysis module is used for acquiring the topology information of the two-layer path tree of all users under the network equipment when the network equipment has a fault alarm;
and the positioning module is used for determining the network equipment node information with the fault in the network according to the topology information of the two-layer path tree.
According to another aspect of the embodiments of the present invention, there is provided a computer apparatus including: the system comprises a processor, a memory, a communication interface and a communication bus, wherein the processor, the memory and the communication interface complete mutual communication through the communication bus;
the memory is configured to store at least one executable instruction that causes the processor to:
acquiring user state information in the network;
judging whether the network equipment in the network has fault alarm or not according to the user state information;
when the network equipment has a fault alarm, acquiring two-layer path tree topology information of all users under the network equipment;
and determining the network equipment node information with faults in the network according to the two-layer path tree topology information.
According to yet another aspect of the embodiments of the present invention, there is provided a computer storage medium having at least one executable instruction stored therein, the executable instruction causing the processor to:
acquiring user state information in the network;
judging whether the network equipment in the network has a fault alarm according to the user state information;
when the network equipment has a fault alarm, acquiring two-layer path tree topology information of all users under the network equipment;
and determining the network equipment node information with faults in the network according to the two-layer path tree topology information.
The embodiment of the invention acquires the topological information of the two-layer path number when the network equipment has a fault alarm, realizes the quick positioning of the network fault, greatly reduces the labor input cost, realizes the real user-level-oriented monitoring from the service level monitoring, can truly represent the damage of the user service, and realizes the control management of the whole life cycle from quick discovery to service recovery confirmation of the fault.
The foregoing is a summary of the embodiments of the present invention, and the following is a detailed description of the embodiments of the present invention in order that the technical solutions of the embodiments of the present invention may be clearly understood.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 shows a fault pre-warning service architecture diagram of an existing home broadband service network;
fig. 2 is a schematic diagram illustrating a network device and a user account association established based on PPPOE + according to an embodiment of the present invention;
FIG. 3 is a flow chart illustrating a method for locating network faults according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating a network fault location method according to another embodiment of the present invention;
fig. 5 is a schematic structural diagram of a network fault locating apparatus provided in an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a network fault locating device according to an embodiment of the present invention;
fig. 7 shows a schematic structural diagram of a computer device provided by an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
Fig. 3 is a flowchart illustrating an embodiment of a network fault location method provided by an embodiment of the present invention, where the method is applied to a network fault location device. The network fault positioning device is used for analyzing and positioning network faults in the household broadband service. As shown in fig. 3, the method comprises the steps of:
step 110: and acquiring user state information in the network.
Before the step, firstly, a PPPoE + function needs to be deployed for each layer of network equipment based on a PPPoE + technology, and a two-layer path tree topology which is associated with the network equipment information of the whole equipment network element and the user account is established according to the network equipment information of the user account passing through the whole equipment network element.
The invention deploys PPPoE + function to each layer of network equipment based on PPPoE + technology to obtain the network equipment information of the user account passing through the network. PPPoE + (also called PPPoE Intermediate Agent), the protocol message of PPPoE is expanded, the access device intercepts the protocol message of PPPoE discovery phase, inserts the physical information of the network device which the user account passes through in the network in the uplink direction, strips the physical information of the user in the downlink direction, and then forwards.
Therefore, network equipment information of a user account passing through the network and user state information associated with each network equipment node can be obtained by deploying the PPPOE + function to each layer of equipment of the network. Therefore, the user state information of the user account corresponding to each network device in the network can be acquired according to the association between each network device and the user account. The user state information represents the online, offline or power-off state information of the user account. Due to the PPPoE + function, the information of network equipment passed by the user account in the network can be acquired, and then the equipment path tree of each user account is taken as a monitoring unit to monitor the real-time fluctuation of the user state information of the user account. Specifically, the alarm information of the monitoring unit can be obtained according to the associated OMC network management alarm and the centralized fault platform, so as to determine the offline state information corresponding to the user account.
Step 120: and judging whether the network equipment in the network has fault alarm according to the user state information.
Since the user status information is already obtained in step 110, the number of users whose user statuses are offline for each network device in the network can be determined through analysis of the user status information, and whether a fault alarm occurs in the network device in the network is determined according to the number of offline users. Specifically, in this embodiment, a first threshold is set for the number of offline users, and when the number of offline users is greater than a preset first threshold, a fault alarm occurs on the network device.
The first threshold value can be configured in a user-defined mode according to the actual requirements of the broadband network. In one embodiment of the present invention, for the configuration of the first threshold, in order to avoid that the threshold configured unexpectedly is low, and a large amount of early warning is generated, a condition control is performed during the program processing. The first threshold setting rule is set as follows: the PON port needs to reach 20 offline user numbers at minimum, and the offline rate is more than 90 percent to trigger early warning; the OLT triggers early warning according to the minimum number of the users reaching 200 offline users or the offline rate reaching more than 90%; and if more than 1000 off-line users of SW and BRAS trigger early warning.
In this embodiment, the number of users offline due to power failure is not considered to be a fault, and therefore, when the number of users offline due to power failure is analyzed, the users offline due to power failure need to be deleted. The process of analyzing the users offline due to power failure is as follows:
obtaining OMC alarm, centralized fault alarm and database logic table of network equipment;
analyzing the OMC alarm, the centralized fault alarm and a database logic table through a dual-cause clustering algorithm to obtain the offline reason of the user;
and when the offline reason of the user is power failure and offline, deleting the user.
Specifically, a TCA (Two-factor clustering algorithm) is used, that is, warning information is acquired by associating an OMC network management warning and a centralized fault platform, user account offline data in the warning information is analyzed, fault reasons of the user account offline data are classified, according to OID information of the warning information, the position of a Two-layer path tree topology where network equipment information associated with the warning information is located is matched, the user account information associated with the warning information is identified, and therefore the user account offline reason is judged, for example: DGI alarm information related to the OMC in the user account offline data represents the outage of the user account; the user actively logs off the line and sends the presence message, and the disconnection caused by the network fault is sent without notification, namely the data is judged to be error report data. And then, filtering error report data of the user account caused by two major factors, namely non-fault data (user active offline, flash off and the like) and error report data (user power off, cell power off and the like), and only keeping the real fault user account offline data. And judging whether the user is in flash recovery or not, and if so, judging that the user is caused by power failure. Specifically, whether the offline user account is flashed or online recovered in a short time is judged, and if the error correction time is set to be 2 minutes, no warning is given after 2 minutes of recovery. And when the user with the user state of off-line is judged to be on-line again within the preset time, deleting the user from the off-line user data. Through the analysis, the real user account offline data with faults are finally obtained.
Step 130: and when the network equipment has fault alarm, acquiring the two-layer path tree topology information of all users under the network equipment.
In this embodiment, as described above, the two-layer path tree topology information of all users under the network device is obtained through the following steps:
acquiring all user information under network equipment;
acquiring the information of network equipment passed by the user according to the user information;
and forming two-layer path tree topology information of the user according to the network equipment information passed by the user.
Please refer to fig. 2, which is a diagram illustrating paths of PPPOE + network devices. Specifically, based on PPPoE + technology, a PPPoE + function is deployed for each layer of network devices to obtain information of network devices through which a user account passes in a network, and the method mainly includes the following steps:
step 1301: the method comprises the steps of deploying a PPPOE + function for network equipment such as BRAS (Broadband Remote Access Server) and OLT (optical line terminal), and acquiring information of the network equipment such as OLT, PON port and VLAN when a user account of a home Broadband carries out authentication and charging to 3A.
Specifically, when a message carrying PPPoE + tag information passes through a port of a certain network device, if the port mode is place, the information in the tag is replaced with local device information of the network device, so that information of network devices through which corresponding user accounts pass in all device network elements can be acquired.
Step 1302: and inquiring the SW (switch) associated with the home-wide service VLAN through reading the mac by the SNMP OID so as to establish the user path tree topology from bottom to top of the OLT-SW-BRAS.
SNMP (simple Network Management protocol) is a simple Network Management protocol in which a Network device runs an SNMP agent in the form of a daemon process that can respond to various request information from the Network. The SNMP agent provides a large number of OIDs (Object Identifiers). Therefore, by using the SNMP protocol to obtain information about a certain SW related device, the related information can be obtained through the OID of the device, and mac addresses, IP addresses, and port number information of all connected PCs under SW can be obtained, which is not described herein again.
Finally, a user path tree topology of the OLT-SW-BRAS from bottom to top is established through the steps 1301 and 1302.
Step 1303: the method comprises the steps of performing 3A butt joint for data acquisition, acquiring a user account number and PPPOE + content in a message through analyzing a radius message acquired in real time, acquiring PON port, equipment, related configuration information and other network equipment information through which a user surfs the internet, establishing a two-layer path by taking the user account number as a unit, forming a two-layer path of 'user account number-PON port-OLT-SW-BRAS', forming a two-layer path tree by taking a plurality of user account numbers, and finally forming a two-layer path tree topology of the network equipment information and the user account number, namely a network path portrait of the user account number, so that a monitoring unit is constructed, and real-time monitoring is performed on the number of online users of certain equipment and certain node.
Therefore, when a certain network device has a fault alarm, the topology information of the network device with the fault alarm is obtained according to the topology information of the two-layer path tree; and determining the information of the network equipment node with the fault according to the topology information of the network equipment.
Step 140: and determining the network equipment node information with faults in the network according to the two-layer path tree topology information.
In this embodiment, the corresponding alarm level is determined according to the number of users whose user states are offline and a preset alarm level threshold. And performing network fault maintenance according to the alarm level. Specifically, three fault early warning levels of blue, yellow and red are defined, the fault early warning levels correspond to different user account offline data levels, and the fault early warning levels can be configured in a user-defined mode according to specific actual requirements. For example, yellow may correspond to 200 failed user account offline data, yellow may correspond to 500 failed user account offline data, and red may correspond to 1000 failed user account offline data. When the number of the offline users with faults reaches the corresponding early warning level, fault early warning information is generated immediately, wherein the fault early warning information comprises the number of the offline users with faults, the nodes of the network equipment with faults and brief warning information obtained by analyzing the offline data of the user account with faults, so that the aims of accurately judging the fault range and the fault reason are fulfilled, and meanwhile, a front-line maintainer is informed by short messages (a first way).
The embodiment of the invention acquires the topological information of the number of paths of the second layer when the network equipment has a fault alarm, realizes the quick positioning of the network fault, greatly reduces the labor input cost, realizes the real user-level-oriented monitoring from the service level monitoring, can truly represent the damage of the user service, and realizes the control management of the whole life cycle from the quick discovery to the service recovery confirmation of the fault.
Fig. 4 is a flowchart illustrating another embodiment of the network fault location method of the present invention, which is applied to a network fault location device. The network fault positioning device is used for analyzing and positioning network faults in the household broadband service. As shown in fig. 4, the method comprises the steps of:
step 210: the method comprises the steps of obtaining network equipment information of a user account passing through all equipment network elements, forming a two-layer path tree topology of the network equipment information of all the equipment network elements and the user account, monitoring the state of network equipment in a network by taking the user account as a unit, and obtaining user state information.
According to the scheme, the PPPoE + function is deployed on each layer of network equipment based on the PPPoE + technology, so that the information of the network equipment through which the user account passes in the network is obtained. PPPoE + (also called PPPoE Intermediate Agent), the protocol message of PPPoE is expanded, the access device intercepts the protocol message of PPPoE discovery phase, inserts the physical information of the network device which the user account passes through in the network in the uplink direction, strips the physical information of the user in the downlink direction, and then forwards. Therefore, the network equipment information of the user account passing through the network can be obtained by deploying the PPPOE + function on each layer of network equipment.
The method comprises the following steps that a PPPoE + function is deployed on each layer of network equipment based on a PPPoE + technology to acquire the information of the network equipment through which a user account passes in a network, and the method mainly comprises the following steps:
step 2101: the method comprises the steps that a PPPOE + function is deployed on network equipment such as a BRAS (Broadband Remote Access Server) and an OLT (optical line terminal), and network equipment information such as the OLT, a PON port and a VLAN is carried when a user account of a home Broadband reaches 3A authentication charging.
Specifically, when a packet carrying PPPoE + tag information passes through a port of a certain network device, if the port mode is replace, the information in the tag is replaced with the local device information of the network device, so that the corresponding network device information can be obtained.
Step 2102: and reading the mac through the SNMP OID to query the SW (switch) associated with the home-wide service VLAN, so as to establish the user path tree topology from bottom to top of the OLT-SW-BRAS.
SNMP (simple Network Management protocol) is a simple Network Management protocol, in which a Network device runs an SNMP agent in the form of a daemon process that can respond to various request information from the Network. The SNMP agent provides a large number of OIDs (Object Identifiers). Therefore, by using the SNMP protocol to obtain information about a certain SW related device, the related information can be obtained through the OID of the device, and mac addresses, IP addresses, and port number information of all connected PCs under SW can be obtained, which is not described herein again.
Finally, a user path tree topology from bottom to top of the OLT-SW-BRAS, that is, a network path representation of the user account, is established through step 2101 and step 2102.
Step 2103: the method comprises the steps of butt joint of 3A for taking data, analyzing a radius message obtained in real time to obtain a user broadband account number and PPPOE + content in the message, extracting network equipment information such as a port, equipment and related configuration information through which a user accesses the internet, then establishing a two-layer path by taking the user account number as a unit so as to form a two-layer path of 'user account number-PON port-OLT-SW-BRAS', then forming a two-layer path tree by taking a plurality of user account numbers, and finally forming a two-layer path tree topology of the network equipment information and the user account number, thereby establishing a monitoring unit and realizing real-time monitoring on the number of online users of a certain device and a certain node.
Step 220: detecting user state information under network equipment, acquiring user account offline data, and judging whether the user account offline data reaches an early warning threshold of the network equipment, if so, executing step 230, and if not, not generating fault early warning.
The method comprises the following steps of detecting the state of a user account under the network equipment, acquiring offline data of the user account, and judging whether the offline data of the user account reaches an early warning threshold value, wherein the method is realized by the following steps:
step 2201: according to the two-layer path tree topology associated with the network equipment information of the whole equipment network element and the user account, a real-time monitoring task is established for the whole equipment network element, the abnormal fluctuation of the user number is monitored in all weather, the user state information under the network equipment is detected, and the user account offline data is obtained.
Step 2202: and judging whether the offline user data under the network equipment reaches a preset early warning threshold value, if not, carrying out early warning, and if so, executing the step 230.
Step 230: when the network equipment has a fault alarm, acquiring the two-layer path tree topology information of all users under the network equipment, analyzing the user account offline data, identifying the offline user account data due to power failure, and filtering to obtain the user account offline data with the fault.
The method is realized by the following steps:
step 2301: and (4) associating alarm information, judging whether all users are offline caused by power failure, if so, not generating fault early warning information, and if not, executing a step 2302. Utilizing a TCA (ternary-factor clustering algorithm), namely acquiring alarm information by associating an OMC network management alarm and a centralized fault platform, analyzing user account offline data in the alarm information, classifying fault reasons of the user account offline data, matching the position of a Two-layer path tree topology where network equipment information associated with the alarm information is located according to OID (object identifier) information of the alarm information, identifying the user account information associated with the alarm information, and judging the user account offline reasons according to the position, wherein the Two-layer path tree topology comprises the following steps: DGI alarm information related to the OMC in the user account offline data represents the outage of the user account; the user actively logs off the line and sends the presence message, and the disconnection caused by the network fault is sent without notification, namely the data is judged to be error report data.
And 2302, filtering the offline data of the user account caused by power failure.
And 2303, judging whether the filtered offline data of the user account is flash recovery or not, if so, not generating fault early warning, and otherwise, generating fault early warning information. Specifically, whether the offline user account corresponding to the filtered offline data of the user account is flashed or recovered online in a short time is judged, if the error correction time is set for 2 minutes, if the offline user account is recovered in 2 minutes, the offline user account is judged to be flashed or recovered online in a short time, and no fault early warning is performed.
And 240, determining the network equipment node information with the fault in the network according to the topology information of the two-layer path tree.
And generating fault early warning information according to the number of the finally filtered off-line users. In this embodiment, three fault early warning levels, i.e., blue, yellow, and red, are defined, and the fault early warning levels correspond to different user account offline data with faults, and can be configured by user according to specific actual requirements. In this embodiment, yellow may correspond to 200 failed user account offline data, yellow may correspond to 500 failed user account offline data, and red may correspond to 1000 failed user account offline data. When the number of the offline users with faults reaches the corresponding early warning level, fault early warning information is generated immediately, wherein the fault early warning information comprises the number of the offline users with faults, the nodes of the network equipment with faults and brief warning information obtained by analyzing the offline data of the user account with faults, so that the aims of accurately judging the fault range and the fault reason are fulfilled, and meanwhile, a front-line maintainer is informed by short messages (a first way).
In the embodiment, the network equipment which has a fault at present is displayed in a form of the GIS map according to the fault early warning level through real-time monitoring of the GIS map, and information such as site position information, equipment information and the fault early warning level of the network equipment which has an early warning fault at present is displayed in real time, so that the fault condition can be mastered more intuitively, in real time and comprehensively.
And 250, sending a short message containing the fault early warning information to a front-line maintenance personnel equipment terminal so that front-line maintenance personnel can rapidly carry out fault first-aid repair according to the fault early warning information. The fault early warning information further comprises fault range information and reason information.
And step 260, updating the offline data of the user account, judging whether the offline data of the user account is lower than an early warning threshold value, and if so, recovering the fault early warning. Specifically, after the fault early warning information is generated, a background can create an early warning monitoring process, pay attention to the online recovery condition and the complaint condition of an offline user in early warning monitoring, the complaint is directly accessed from a complaint platform, once the fault first-aid repair is effective, the user can recover step by step, and the complaint is stable. And drawing a real-time recovery curve and a complaint curve of the offline data of the user account, and intuitively judging whether the fault is really solved or not and whether the fault is closed loop or not through the curve, so as to realize the control from fault discovery to processing of the whole life cycle.
The embodiment of the invention acquires the topological information of the two-layer path number when the network equipment has a fault alarm, realizes the quick positioning of the network fault, greatly reduces the labor input cost, realizes the real user-level-oriented monitoring from the service level monitoring, can truly represent the damage of the user service, and realizes the control management of the whole life cycle from quick discovery to service recovery confirmation of the fault. Through GIS real-time monitoring, the current position information and equipment information of the early warning fault site can be presented in real time, and the fault condition can be directly, intuitively, real-timely and comprehensively mastered. Furthermore, by pushing the short message containing the fault early warning information to a front-line maintenance personnel, the relevant maintenance personnel can be informed to take processing measures at the first time when the batch faults are monitored, and the network maintenance efficiency is improved.
Fig. 5 shows a schematic structural diagram of an embodiment of the network fault locating device of the present invention. The network fault location apparatus 300 includes: the system comprises a user state information acquisition module 310, a judgment module 320, a topology analysis module 330 and a positioning module 340.
A user status information obtaining module 310, configured to obtain user status information in the network.
The determining module 320 is configured to determine whether a network device in the network has a fault alarm according to the user status information.
The topology analysis module 330 is configured to obtain topology information of a two-layer path tree of all users under the network device when the network device generates a fault alarm.
And a positioning module 340, configured to determine, according to the topology information of the two-layer path tree, information of a network device node in the network that has a fault.
In an alternative manner, the user status information obtaining module 310 obtains the user status information in the network based on PPPoE + function deployed by PPPoE + technology for each layer of device in the network.
Specifically, a PPPoE + (also called PPPoE Intermediate Agent) expands a PPPoE protocol message, an access device intercepts the protocol message at a PPPoE discovery stage, inserts physical information of network devices through which a user account passes in a network in an uplink direction, strips away the physical information of a user in a downlink direction, and forwards the physical information. Therefore, network equipment information of a user account passing through the network and associated user state information under each network equipment node can be obtained by deploying the PPPOE + function on each layer of network equipment. Therefore, the user state information of the user account corresponding to each network device in the network can be acquired according to the association between each network device and the user account. The user state information represents the online, offline or power-down state information of the user account. Due to the PPPoE + function, the information of network equipment passed by the user account in the network can be acquired, and then the equipment path tree of each user account is taken as a monitoring unit to monitor the real-time fluctuation of the user state information of the user account. Specifically, the off-line state information corresponding to the user account may be determined by obtaining the alarm information of the monitoring unit according to the associated OMC network management alarm and the centralized fault platform.
In an alternative manner, the determining module 320 determines whether a network device in the network has a failure alarm according to the user status information. Since the user status information obtaining module 310 has already obtained the user status information, the determining module 320 may determine the number of users whose user statuses are offline for each network device in the network by analyzing the user status information, and determine whether a fault alarm occurs in the network device in the network according to the number of offline users. Specifically, in this embodiment, a first threshold is set for the number of offline users, and when the number of offline users is greater than a preset first threshold, a fault alarm occurs on the network device. The first threshold value can be configured in a user-defined mode according to the actual requirements of the broadband network. In one embodiment of the present invention, for the configuration of the first threshold, in order to avoid that the threshold configured unexpectedly is low, and a large amount of early warning is generated, a condition control is performed during the program processing. The first threshold setting rule is set as follows: the PON port needs to reach 20 offline user numbers at minimum, and the offline rate is more than 90 percent to trigger early warning; the OLT triggers early warning according to the minimum number of the users reaching 200 offline users or the offline rate reaching more than 90%; and if more than 1000 off-line users of SW and BRAS trigger early warning. In this embodiment, the number of users offline due to power failure is not considered to be a fault, and therefore, when the number of users offline due to power failure is analyzed, the users offline due to power failure need to be deleted. The process of analyzing the offline user due to power failure by the determining module 320 is as follows:
and obtaining an OMC alarm, a centralized fault alarm and a database logic table of the network equipment.
And analyzing the OMC alarm, the centralized fault alarm and the database logic table through a dual-cause clustering algorithm to obtain the offline reason of the user.
And when the offline reason of the user is power failure and offline, deleting the user.
Specifically, a TCA (Two-factor clustering algorithm) is used, that is, warning information is acquired by associating an OMC network management warning and a centralized fault platform, user account offline data in the warning information is analyzed, fault reasons of the user account offline data are classified, according to OID information of the warning information, the position of a Two-layer path tree topology where network equipment information associated with the warning information is located is matched, the user account information associated with the warning information is identified, and therefore the user account offline reason is judged, for example: DGI alarm information associated to the OMC in the user account offline data represents that the user account is powered off; the user actively logs off the line and sends the presence message, and the disconnection caused by the network fault is sent without notification, namely the data is judged to be error report data. And then, filtering error report data of the user account caused by two major factors, namely non-fault data (user active offline, flash off and the like) and error report data (user power off, cell power off and the like), and only keeping the real fault user account offline data. And judging whether the user is in flash recovery or not, and if so, judging that the user is caused by power failure. Specifically, whether the offline user account is flashed or recovered online in a short time is judged, and if the error correction time is set for 2 minutes, no warning is given after 2 minutes of recovery. And when the user with the user state of off-line is judged to be on-line again in preset time, deleting the user from the off-line user data. Through the analysis, the real user account offline data with faults are finally obtained.
In an alternative manner, the topology analysis module 330 obtains the two-layer path tree topology information of all users under the network device through the following processes:
acquiring all user information under network equipment;
acquiring the information of network equipment passed by the user according to the user information;
and forming two-layer path tree topology information of the user according to the network equipment information passed by the user.
Specifically, based on PPPoE + technology, a PPPoE + function is deployed for each layer of network devices to obtain information of network devices through which a user account passes in a network, and the method mainly includes the following steps:
the method comprises the steps of deploying PPPOE + function on network equipment such as BRAS (Broadband Remote Access Server) and OLT (optical line terminal), and acquiring information of the network equipment such as OLT, PON port and VLAN when a user account of a home Broadband reaches 3A authentication charging.
Specifically, when a message carrying PPPoE + tag information passes through a port of a certain network device, if the port mode is place, the information in the tag is replaced with local device information of the network device, so that information of the network device, through which a corresponding user account passes in the whole device network element, can be obtained.
And inquiring the SW (switch) associated with the home-wide service VLAN through reading the mac by the SNMP OID so as to establish the user path tree topology from bottom to top of the OLT-SW-BRAS.
SNMP (simple Network Management protocol) is a simple Network Management protocol in which a Network device runs an SNMP agent in the form of a daemon process that can respond to various request information from the Network. The SNMP agent provides a large number of OIDs (Object Identifiers). Therefore, by using the SNMP protocol to obtain information about a certain SW related device, the related information can be obtained through the OID of the device, and mac addresses, IP addresses, and port number information of all connected PCs under SW can be obtained, which is not described herein again. And finally, establishing a user path tree topology of the OLT-SW-BRAS from bottom to top.
The method comprises the steps of obtaining data through butting 3A, analyzing a radius message obtained in real time, analyzing and obtaining a user account number and PPPOE + content in the message, extracting PON port, equipment, related configuration information and other network equipment information through which a user surfs the internet, establishing a two-layer path by taking the user account number as a unit so as to form a two-layer path of 'user account number-PON port-OLT-SW-BRAS', forming a two-layer path tree by taking a plurality of user account numbers, and finally forming a two-layer path tree topology of the network equipment information and the user account number, namely a network path sketch of the user account number, so that a monitoring unit is constructed, and real-time monitoring is carried out on the number of online users of certain equipment and certain node.
Therefore, when a certain network device has a fault alarm, the topology analysis module 330 acquires the topology information of the network device having the fault alarm according to the topology information of the two-layer path tree; and determining the information of the network equipment node with the fault according to the topology information of the network equipment.
In an optional manner, the positioning module 340 generates the fault warning information according to the number of the finally filtered offline users. In this embodiment, three fault early warning levels, namely blue, yellow and red, are defined, and the fault early warning levels correspond to different user account offline data with faults, and can be configured in a user-defined manner according to specific actual requirements. In this embodiment, yellow may correspond to 200 failed user account offline data, yellow may correspond to 500 failed user account offline data, and red may correspond to 1000 failed user account offline data. When the number of the offline users with faults reaches the corresponding early warning level, fault early warning information is generated immediately, wherein the fault early warning information comprises the number of the offline users with faults, the nodes of the network equipment with faults and brief warning information obtained by analyzing the offline data of the user account with faults, so that the aims of accurately judging the fault range and the fault reason are fulfilled, and meanwhile, a front-line maintainer is informed by short messages (a first way). The invention establishes a set of intelligent network fault positioning system of home broadband service by a PPPoE + based dual-factor clustering algorithm, constructs a network path portrait of a user account by the PPPoE +, monitors the fluctuation of the data of the user account of network equipment in real time, filters interference factors by a TCA dual-factor clustering algorithm, retains real faults and achieves the beneficial effect of instant early warning.
Fig. 6 shows a schematic structural diagram of an embodiment of the network fault location device 400 of the present invention. As shown in fig. 6, the network fault locating apparatus 400 includes: a centralized fault platform 401, a GIS real-time monitoring device 402, a short message pushing module 403, a resource management platform 404, an OMC network management platform 405, a billing platform 406, and the home broadband network fault early warning device 300.
The centralized fault platform 401, the GIS real-time monitoring device 402, the short message pushing module 403, the resource management platform 404, the OMC network management platform 405, and the billing platform 406 are respectively connected to the home broadband network fault early warning device 300. The network fault positioning apparatus 300 acquires the network device information of the centralized fault platform 401, the resource management platform 404, the OMC network management platform 405, and the charging platform 406 in real time by deploying PPPoE +, and generates a two-layer path tree topology in which the network device information is associated with the user account, that is, a network path representation of the user account, according to the network device information, and generates fault early warning information.
The GIS real-time monitoring device 402 displays the current failed network device in the form of a GIS map according to the fault early warning information of the network fault positioning device 300 and the fault early warning level, and presents the site location information, the device information, the fault early warning level and other information of the current network device with early warning fault in real time, so as to more intuitively, real-timely and comprehensively grasp the fault condition.
The short message pushing module 403 sends a short message containing the fault early warning information to a first-line maintenance personnel equipment terminal, so that a first-line maintenance personnel can quickly perform fault first-aid repair according to the fault early warning information. The fault early warning information further comprises fault range information and reason information.
The invention establishes a set of intelligent monitoring and fault rapid discovery system of home broadband service through a PPPoE + based dual-factor clustering algorithm, constructs a network path portrait of a user account through the PPPoE +, monitors the fluctuation of the data of the user account of network equipment in real time, filters interference factors through a TCA dual-factor clustering algorithm, retains real faults and achieves the beneficial effect of immediate early warning. Furthermore, the position information and the equipment information of the current early warning fault site are displayed in real time through GIS real-time monitoring, and the fault condition can be directly, intuitively, in real time and comprehensively mastered. By pushing the short message containing the fault early warning information to a front-line maintenance personnel, the relevant maintenance personnel can be informed to take treatment measures at the first time when the batch faults are monitored, and the network maintenance efficiency is improved.
The embodiment of the invention provides a nonvolatile computer storage medium, which executes the network fault positioning method in the embodiment, wherein the computer storage medium stores at least one executable instruction, and the computer executable instruction can execute the network fault positioning early warning method in any method embodiment.
The executable instructions may be specifically configured to cause the processor to perform the following operations:
acquiring user state information in the network;
judging whether the network equipment in the network has fault alarm or not according to the user state information;
when the network equipment has a fault alarm, acquiring two-layer path tree topology information of all users under the network equipment;
and determining the network equipment node information with faults in the network according to the two-layer path tree topology information.
The embodiment of the invention acquires the topological information of the two-layer path number when the network equipment has a fault alarm, realizes the quick positioning of the network fault, greatly reduces the labor input cost, realizes the real user-level-oriented monitoring from the service level monitoring, can truly represent the damage of the user service, and realizes the control management of the whole life cycle from quick discovery to service recovery confirmation of the fault.
Fig. 7 is a schematic structural diagram of an embodiment of a computer device according to the present invention, and the specific embodiment of the present invention does not limit the specific implementation of the computer device. As shown in fig. 7, the computer apparatus may include: a processor (processor)502, a Communications Interface 504, a memory 506, and a communication bus 508.
Wherein: the processor 502, communication interface 504, and memory 506 communicate with each other via a communication bus 508. A communication interface 504 for communicating with network elements of other devices, such as clients or other servers. The processor 502, configured to execute the program 510, may specifically perform the relevant steps in the above-described embodiment of the graph drawing method for the computer device.
In particular, program 510 may include program code that includes computer operating instructions.
The processor 502 may be a central processing unit CPU, or an Application Specific Integrated Circuit (ASIC), or one or more Integrated circuits configured to implement an embodiment of the present invention. The computer device includes one or more processors, which may be the same type of processor, such as one or more CPUs; or may be different types of processors such as one or more CPUs and one or more ASICs.
And a memory 506 for storing a program 510. The memory 506 may comprise high-speed RAM memory, and may also include non-volatile memory (non-volatile memory), such as at least one disk memory.
The program 510 may be specifically configured to enable the processor 402 to execute the network fault location method in the above method embodiment.
The embodiment of the invention acquires the topological information of the number of paths of the second layer when the network equipment has a fault alarm, realizes the quick positioning of the network fault, greatly reduces the labor input cost, realizes the real user-level-oriented monitoring from the service level monitoring, can truly represent the damage of the user service, and realizes the control management of the whole life cycle from the quick discovery to the service recovery confirmation of the fault.
The algorithms or displays presented herein are not inherently related to any particular computer, virtual system, or other apparatus. Various general purpose systems may also be used with the teachings herein. The required structure for constructing such a system will be apparent from the description above. In addition, embodiments of the present invention are not directed to any particular programming language. It is appreciated that a variety of programming languages may be used to implement the teachings of the present invention as described herein, and any descriptions of specific languages are provided above to disclose the best mode of the invention.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the embodiments of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be construed to reflect the intent: that the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
Those skilled in the art will appreciate that the modules in the devices in an embodiment may be adaptively changed and arranged in one or more devices different from the embodiment. The modules or units or components in the embodiments may be combined into one module or unit or component, and furthermore, may be divided into a plurality of sub-modules or sub-units or sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features and/or processes or elements are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.
Furthermore, those skilled in the art will appreciate that while some embodiments herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names. The steps in the above embodiments should not be construed as limiting the order of execution unless specified otherwise.
Claims (9)
1. A method for locating a network fault, the method comprising:
acquiring user state information in the network;
judging whether the network equipment in the network has fault alarm or not according to the user state information;
when the network equipment has a fault alarm, acquiring the two-layer path tree topology information of all users under the network equipment, wherein the two-layer path tree topology information comprises the following steps: acquiring all user information under the network equipment, acquiring network equipment information passed by the user according to the user information, and forming two-layer path tree topology information of the user according to the network equipment information passed by the user; the method comprises the steps that a two-layer path is established by taking a user account as a unit, a two-layer path of 'user account-PON port-OLT-SW-BRAS' is formed, a two-layer path tree is formed by multiple users of accounts, and a two-layer path tree topology formed by associating network equipment information with the user account is formed;
and determining the network equipment node information with faults in the network according to the two-layer path tree topology information.
2. The method for locating network fault according to claim 1, wherein the determining whether the network device in the network has fault alarm according to the user status information includes:
acquiring the number of users of which the user states are offline under each network device in the network;
and when the number of the users is larger than a preset first threshold value, the network equipment generates fault alarm.
3. The method for locating network fault according to claim 2, wherein after obtaining the topology information of the two-layer path tree of all users under the network device, the method further comprises:
obtaining OMC alarm, centralized fault alarm and database logic table of the network equipment;
analyzing the OMC alarm, the centralized fault alarm and the database logic table through a dual-cause clustering algorithm to obtain the offline cause of the user;
and when the offline reason of the user is power failure and offline, deleting the user.
4. The method for locating network fault according to claim 2, wherein after obtaining the topology information of the two-layer path tree of all users under the network device, the method further comprises:
and when the user with the user state of off-line is judged to be on-line again in preset time, deleting the user.
5. The method according to claim 3 or 4, wherein the determining the node information of the network device with the fault in the network according to the topology information of the two-layer path tree comprises:
acquiring the topology information of the network equipment with the fault alarm according to the topology information of the two-layer path tree;
and determining the information of the network equipment node with the fault according to the topology information of the network equipment.
6. The network fault location method of claim 5, wherein after determining the network device node information that has failed in the network, further comprising:
determining a corresponding alarm level according to the number of the users with the offline user states and a preset alarm level threshold;
and performing network fault maintenance according to the alarm level.
7. A network fault location device, the location device comprising:
a user state information acquisition module, configured to acquire user state information in the network;
the judging module is used for judging whether the network equipment in the network has fault alarm according to the user state information;
a topology analysis module, configured to obtain topology information of a two-layer path tree of all users under the network device when the network device generates a fault alarm, where the topology analysis module includes: acquiring all user information under the network equipment, acquiring network equipment information passed by the user according to the user information, and forming two-layer path tree topology information of the user according to the network equipment information passed by the user; the method comprises the steps that a two-layer path is established by taking a user account as a unit, the two-layer path of 'user account-PON port-OLT-SW-BRAS' is formed, a two-layer path tree is formed by multiple users, and a two-layer path tree topology formed by associating network equipment information with the user account is formed;
and the positioning module is used for determining the network equipment node information with the fault in the network according to the topology information of the two-layer path tree.
8. A computer device, comprising: the system comprises a processor, a memory, a communication interface and a communication bus, wherein the processor, the memory and the communication interface complete mutual communication through the communication bus;
the memory is configured to store at least one executable instruction that causes the processor to perform the network fault location method of any of claims 1-6.
9. A computer storage medium having stored therein at least one executable instruction for causing a processor to perform the method of any one of claims 1-6.
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| CN115314358B (en) * | 2021-05-08 | 2024-04-09 | 中国移动通信集团福建有限公司 | Method and device for monitoring faults of dummy network elements of home wide network |
| CN115484141B (en) * | 2021-06-15 | 2023-08-15 | 中国移动通信集团河南有限公司 | User determination method, device, equipment and storage medium |
| CN114245242B (en) * | 2021-12-23 | 2023-10-27 | 海南神州泰岳软件有限公司 | User offline detection method and device and electronic equipment |
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