CN105743704A - Fault analysis method and device for communication link - Google Patents
Fault analysis method and device for communication link Download PDFInfo
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- CN105743704A CN105743704A CN201610193037.XA CN201610193037A CN105743704A CN 105743704 A CN105743704 A CN 105743704A CN 201610193037 A CN201610193037 A CN 201610193037A CN 105743704 A CN105743704 A CN 105743704A
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- 238000004458 analytical method Methods 0.000 title claims abstract description 36
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- 238000012545 processing Methods 0.000 claims description 12
- 238000010586 diagram Methods 0.000 description 7
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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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Abstract
The invention provides a fault analysis method and device for a communication link. The method comprises the following steps: acquiring a network topological structure, and determining link objects and ring objects by using the network topological structure; when an interrupt type alarm is acquired, acquiring an occurrence location of the interrupt type alarm; if the interrupt type alarm occurs on network element equipment, judging whether one link object includes the network element equipment or not when a communication link between source network element equipment and destination network element equipment passes by the link object; and if so, determining that the communication link between the source network element equipment and the destination network element equipment is already interrupted. Through the technical scheme of the invention, the workload of manual analysis is lowered; fault analysis time is reduced; user services are recovered as soon as possible; and the user experience is improved. Faults of a batch of communication links can be analyzed rapidly; the fault analysis efficiency is increased; and the stress of fault analysis on a system is lowered. Only the communication links tending to fail are analyzed, so that the analysis accuracy is increased.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for analyzing a fault of a communication link.
Background
With the rapid development of communication technology, the network scale is larger and larger, the number of network element devices in the network is larger and larger, and the connection relationship between the network element devices is more and more complex. Therefore, failure analysis is becoming more difficult. At present, in a network including a large number of network element devices, the network element devices may be managed centrally by network management devices. On one hand, the network management equipment issues data to each network element equipment so that the network element equipment executes a preset command. On the other hand, each network element device reports data to the network management device, so that the network management device can monitor and analyze each network element device according to the data of each network element device.
When the network element equipment fails or a link between the network element equipment fails, the network management equipment can acquire the failure condition and present the failure condition to maintenance personnel. After finding the fault, the maintainer can analyze the fault of each network element device and the link between any two network element devices one by one aiming at the communication link between the source network element device and the target network element device so as to analyze the fault network element device or link, further analyze whether the communication link between the source network element device and the target network element device is interrupted, and recover the fault network element device or link when the communication link is interrupted, thereby ensuring the normal operation of the service between the source network element device and the target network element device and ensuring the reliability of the network.
Because the maintenance personnel carry out fault analysis on each network element device and the link between any two network element devices one by one, the fault analysis is more and more difficult and the workload of manual work is very large along with the increase of the number of the network element devices and the complication of the connection relation between the network element devices. Moreover, it takes a long time to manually analyze the failure, and the service cannot be performed before the failure is recovered, thereby interrupting the service and affecting the user experience. Moreover, when the fault is manually analyzed, the fault may not be accurately analyzed, and an error conclusion is obtained.
Disclosure of Invention
The invention provides a fault analysis method of a communication link, which comprises the following steps:
acquiring a network topological structure, and determining a chain object and a ring object by using the network topological structure;
when the interrupt alarm is acquired, acquiring the position of the interrupt alarm;
if the interrupt alarm occurs on the network element equipment, when a communication link between the source network element equipment and the target network element equipment passes through a link object, judging whether the link object comprises the network element equipment;
if so, it is determined that the communication link between the source network element device and the destination network element device has been interrupted.
The method further comprises:
when the interrupt alarm occurs on the network element equipment and a communication link between the source network element equipment and the target network element equipment passes through a ring object, judging whether the ring object comprises the network element equipment or not;
if the network element equipment is included, judging whether a communication link between the source network element equipment and the target network element equipment only corresponds to a ring object; if only one ring object is corresponded, determining that the communication link between the source network element equipment and the target network element equipment is interrupted;
if the ring objects correspond to a plurality of ring objects, when all the ring objects contain network element equipment corresponding to the interrupt-type alarm, determining that the communication link between the source network element equipment and the target network element equipment is interrupted; and when all the ring objects do not contain the network element equipment corresponding to the interrupt type alarm, determining that the communication link between the source network element equipment and the target network element equipment is not interrupted.
The method further comprises:
when the interrupt alarm occurs on a loop link between network element devices and a communication link between a source network element device and a target network element device passes through a loop object, judging whether the loop object comprises the loop link;
if the ring link is included, judging whether the communication link between the source network element equipment and the target network element equipment only corresponds to one ring object; if only one ring object is corresponded, determining that the communication link between the source network element equipment and the target network element equipment is interrupted;
if the ring objects correspond to a plurality of ring objects, when all the ring objects contain a ring link corresponding to an interrupt alarm, determining that the communication link between the source network element equipment and the target network element equipment is interrupted; and when all the ring objects do not contain the ring link corresponding to the interrupt type alarm, determining that the communication link between the source network element equipment and the target network element equipment is not interrupted.
The process of determining the chain object and the ring object by using the network topology specifically includes:
analyzing all network element devices from the network topological structure, abstracting each network element device into a point object, and abstracting a link between two network element devices with a connection relation into a line object;
recording all point objects and all line objects in a pre-configured link object table;
for each point object, the following steps are performed: step A, judging whether the link object table only corresponds to one line object; if yes, executing step B; step B, removing the corresponding line object from the link object table, and judging whether another point object of the line object corresponds to only one line object in the link object table; if yes, returning to continue to execute the step B; if not, executing the step C; step C, determining links formed by all the moved line objects as chain objects;
and determining a loop formed by the remaining line objects in the link object table as a loop object.
The process of acquiring the position where the interrupt type alarm occurs when the interrupt type alarm is acquired specifically includes: when receiving an interrupt alarm sent by two network element devices having a connection relation, acquiring a position where the interrupt alarm occurs as a loop link between the two network element devices; or,
when receiving an interrupt alarm sent by two network element devices which do not have a connection relation, acquiring the position where the interrupt alarm occurs as the network element device between the two network element devices.
The invention provides a fault analysis device of a communication link, which specifically comprises:
the acquisition module is used for acquiring a network topology structure, acquiring an interrupt alarm and acquiring the position of the interrupt alarm when the interrupt alarm is acquired;
a determining module for determining a chain object and a ring object using the network topology;
a processing module, configured to determine whether a link object includes the network element device when the interrupt-type alarm occurs on the network element device and when a communication link between a source network element device and a destination network element device passes through the link object; and if so, determining that the communication link between the source network element equipment and the destination network element equipment is interrupted.
The processing module is further configured to determine whether the ring object includes the network element device when the interrupt-type alarm occurs on the network element device and a communication link between the source network element device and the destination network element device passes through the ring object; if the network element equipment is included, judging whether a communication link between the source network element equipment and the target network element equipment only corresponds to a ring object; if only one ring object is corresponded, determining that the communication link between the source network element equipment and the target network element equipment is interrupted; if the ring objects correspond to a plurality of ring objects, when all the ring objects contain network element equipment corresponding to the interrupt-type alarm, determining that the communication link between the source network element equipment and the target network element equipment is interrupted; and when all the ring objects do not contain the network element equipment corresponding to the interrupt type alarm, determining that the communication link between the source network element equipment and the target network element equipment is not interrupted.
The processing module is further configured to determine whether the ring object includes the ring link when the interrupt-type alarm occurs on the ring link between the network element devices and a communication link between the source network element device and the destination network element device passes through the ring object; if the ring link is included, judging whether the communication link between the source network element equipment and the target network element equipment only corresponds to one ring object; if only one ring object is corresponded, determining that the communication link between the source network element equipment and the target network element equipment is interrupted; if the ring objects correspond to a plurality of ring objects, when all the ring objects contain a ring link corresponding to an interrupt alarm, determining that the communication link between the source network element equipment and the target network element equipment is interrupted; and when all the ring objects do not contain the ring link corresponding to the interrupt type alarm, determining that the communication link between the source network element equipment and the target network element equipment is not interrupted.
The determining module is specifically configured to, in a process of determining a chain object and a ring object by using the network topology, analyze all network element devices from the network topology, abstract each network element device into a point object, and abstract a link between two network element devices having a connection relationship into a line object; recording all point objects and all line objects in a pre-configured link object table;
for each point object, the following procedure is performed: A. judging whether the link object table only corresponds to one line object; if yes, executing B; B. removing the corresponding line object from the link object table, and judging whether another point object of the line object corresponds to only one line object in the link object table; if yes, returning to continue executing B; if not, executing C; C. determining links formed by all the moved line objects as chain objects;
and determining a loop formed by the remaining line objects in the link object table as a loop object.
The obtaining module is specifically configured to, in a process of obtaining a position where an interrupt type alarm occurs when the interrupt type alarm is obtained, obtain, when an interrupt type alarm sent by two network element devices having a connection relationship is received, a position where the interrupt type alarm occurs as a loop link between the two network element devices; or, when receiving an interrupt-type alarm sent by two network element devices that do not have a connection relationship, acquiring a position where the interrupt-type alarm occurs as a network element device between the two network element devices.
Based on the technical scheme, in the embodiment of the invention, the network topological structure is obtained, and the link object and the ring object are determined by utilizing the network topological structure; when the interrupt alarm is acquired, acquiring the position of the interrupt alarm; if the interrupt alarm occurs on the network element equipment, when a communication link between the source network element equipment and the target network element equipment passes through a link object, judging whether the link object comprises the network element equipment; if so, it is determined that the communication link between the source network element device and the destination network element device has been interrupted. Based on the mode, whether the communication link between the source network element equipment and the target network element equipment is interrupted or not can be determined by directly utilizing the network topology structure and the interruption type alarm without manually analyzing whether the communication link between the source network element equipment and the target network element equipment is interrupted or not by a maintenance person, so that the workload of manual analysis is reduced, the time of fault analysis can be reduced, the service of a user can be recovered as soon as possible, the user experience is improved, the fault can be accurately analyzed, and the wrong conclusion can be avoided. Moreover, as long as the chain object contains the network element equipment corresponding to the interrupt alarm, it can be analyzed that all communication links (communication links between the source network element equipment and the destination network element equipment) passing through the chain object are interrupted, so that faults of a batch of communication links are quickly analyzed, the fault analysis efficiency is improved, and the pressure of fault analysis on the system is reduced. Moreover, the fault analysis can be performed more specifically, only the communication link which is likely to generate the fault is analyzed, the analysis precision is improved, and the fault analysis time after the network element equipment interrupts the alarm can be saved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments of the present invention or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
FIG. 1 is a schematic diagram of an application scenario in an embodiment of the present invention;
FIG. 2 is a flow diagram of a method of failure analysis of a communication link in one embodiment of the invention;
fig. 3 is a hardware structure diagram of a network management device in an embodiment of the present invention;
fig. 4 is a configuration diagram of a failure analysis device of a communication link according to an embodiment of the present invention.
Detailed Description
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein is meant to encompass any and all possible combinations of one or more of the associated listed items.
It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present invention. Depending on the context, moreover, the word "if" as used may be interpreted as "at … …" or "when … …" or "in response to a determination".
In view of the problems in the prior art, the embodiment of the present invention provides a method for analyzing a failure of a communication link, which may be applied to a network (e.g., a communication network) including a network management device and a plurality of network element devices. The network management equipment issues data to each network element equipment so that each network element equipment executes a preset command, and each network element equipment reports the data to the network management equipment so that the network management equipment monitors and analyzes each network element equipment. In order to realize normal operation of a communication network, it is necessary to analyze whether a communication link between a source network element device and a destination network element device is interrupted, and perform fault recovery when the interruption occurs, thereby ensuring normal operation of a service between the source network element device and the destination network element device, and ensuring network reliability.
As shown in fig. 1, which is a schematic view of an application scenario of the embodiment of the present invention, a network management device is not shown in fig. 1, and the network management device is connected to each network element device. In fig. 1, each network element device includes a network element device R1, a network element device R2, a network element device R3, a network element device R4, a network element device R5, a network element device R6, a network element device R7, a network element device R8, a network element device R9, a network element device R10, a network element device R11, a network element device L1, a network element device L2, and a network element device L3, and the connection relationship thereof is shown in fig. 1.
In the application scenario, the method for analyzing the fault of the communication link may be applied to a network management device, as shown in fig. 2, and the method for analyzing the fault of the communication link may specifically include the following steps:
step 201, acquiring a network topology structure, and determining a chain object and a ring object by using the network topology structure.
For the process of acquiring the network topology structure, the network management device may maintain information of each network element device, and acquire a connection relationship between each network element device by collecting data of the communication network, for example, data sent to the network element device R2 based on the network element device R1, the network management device may analyze that the network element device R1 has a connection relationship with the network element device R2, and so on, the network topology structure shown in fig. 1, and the specific process of acquiring the network topology structure, which is not described in detail in the embodiment of the present invention.
In the embodiment of the present invention, the process of determining the chain object and the ring object by using the network topology may specifically include, but is not limited to, the following ways: step 1, analyzing all network element devices from a network topology structure, abstracting each network element device into a point object, and abstracting a link between two network element devices with a connection relationship into a line object. And 2, recording all point objects and all line objects in a pre-configured link object table. And 3, aiming at each point object, executing the following steps: step A, judging whether the link object table only corresponds to one line object; if yes, executing step B; step B, moving out the corresponding line object from the link object table, and judging whether another point object of the line object corresponds to only one line object in the link object table; if yes, returning to continue to execute the step B; if not, executing the step C; and step C, determining links formed by all the moved line objects as chain objects. And 4, determining a loop formed by the remaining line objects in the link object table as a loop object.
The determination of the chain objects and the ring objects is described below with reference to the application scenario shown in fig. 1.
In step 1, the network element device analyzed from the network topology specifically includes: the network element device R1, the network element device R2, the network element device R3, the network element device R4, the network element device R5, the network element device R6, the network element device R7, the network element device R8, the network element device R9, the network element device R10, the network element device R11, the network element device L1, the network element device L2, and the network element device L3, and each network element device is abstracted into point objects. The line object obtained based on the network topology specifically includes: a link between the line object 1-network element device L1 and the network element device R8, a link between the line object 2-network element device R8 and the network element device R9, a link between the line object 3-network element device R9 and the network element device R10, a link between the line object 4-network element device R10 and the network element device R1, a link between the line object 5-network element device R10 and the network element device R11, a link between the line object 6-network element device R11 and the network element device R4, a link between the line object 7-network element device R1 and the network element device R2, a link between the line object 8-network element device R2 and the network element device R3, a link between the line object 9-network element device R3 and the network element device R4, a link between the line object 10-network element device R4 and the network element device R5, a link between the line object 11-network element device R5 and the network element device R6, line object 12-link between network element device R6 and network element device R7, line object 13-link between network element device R7 and network element device R8, line object 14-link between network element device R7 and network element device L2, line object 15-link between network element device L2 and network element device L3.
In step 2, all point objects and all line objects are recorded in the link object table.
In step 3, for point objects (network element device R1, network element device R2, network element device R3, network element device R4, network element device R5, network element device R6, network element device R7, network element device R8, network element device R9, network element device R10, network element device R11, and network element device L2), at least two line objects are corresponding to the link object table, for example, network element device R1 corresponds to line object 4 and line object 7, and network element device R2 corresponds to line object 7 and line object 8. The processing of step 3 ends for these point objects.
For the point object (net element device L1), there is only one line object 1 in the link object table, and the line object 1 is removed from the link object table. Since the other point object (network element device R8) of the line object 1 corresponds to two line objects (line object 2, line object 13) in the link object table, the link composed of the removed line object 1 is determined as a chain object, i.e. the chain object includes the link between the network element device L1 and the network element device R8. For a point object (net element device L3), only one line object 15 is mapped in the link object table, and the line object 15 is removed from the link object table. Since the other point object (network element device L2) of the line object 15 corresponds to only one line object 14 in the link object table (the line object 14 only corresponds to after the line object 15 is removed), the line object 14 is removed from the link object table. Since another point object (the network element device R7) of the line object 14 corresponds to two line objects (the line object 12, the line object 13) in the link object table, the link composed of the moved line object 15 and the line object 14 is determined as a chain object, i.e., the chain object includes a link between the network element device L3 and the network element device L2, and a link between the network element device L2 and the network element device L7. To this end, a total of two chain objects are obtained, which are: link object 1-link between network element device L1 and network element device R8; link object 2-link between network element device L3 and network element device L2, link between network element device L2 and network element device L7.
In step 4, after removing line object 1, line object 14, and line object 15 from the link object table, the remaining line objects in the link object table include line object 2, line object 3, line object 4, line object 5, line object 6, line object 7, line object 8, line object 9, line object 10, line object 11, line object 12, and line object 13, and the loop formed by the remaining line objects in the link object table is determined as a loop object.
In order to obtain a loop formed by line objects, a certain point object (e.g. network element device R1) may be used as a starting point object, starting from a line object (e.g. line object 7) of the starting point object, another point object (e.g. network element device R2) of the line object (e.g. line object 7) is found first, and from a line object (e.g. line object 8) corresponding to another point object (e.g. network element device R2), another point object (e.g. network element device R3) of the line object (e.g. line object 8) is continuously found, and so on, after the starting point object is found, all line objects passing through in the finding process may be formed into a loop.
For example, when the network element device R1 is used as a starting point object, the line object 7, the line object 8, the line object 9, the line object 6, the line object 5, and the line object 4 form a loop. With the network element device R1 as the starting point object, the line object 7, the line object 8, the line object 9, the line object 10, the line object 11, the line object 12, the line object 13, the line object 2, the line object 3, and the line object 4 form a loop. With the network element device R10 as the starting point object, the line object 5, the line object 6, the line object 10, the line object 11, the line object 12, the line object 13, the line object 2, and the line object 3 form a loop. Of course, the above three examples are only examples of the starting point object, and the above three loops can be formed no matter which network element device is used as the starting point object, and only the three loops are included in the network topology shown in fig. 1.
Further, the three loops may be determined as corresponding three loop objects, such as the loop object 1 including: line object 7, line object 8, line object 9, line object 6, line object 5, line object 4. The ring object 2 includes: line object 7, line object 8, line object 9, line object 10, line object 11, line object 12, line object 13, line object 2, line object 3, line object 4. The ring object 3 includes: line object 5, line object 6, line object 10, line object 11, line object 12, line object 13, line object 2, line object 3. In addition, for the source network element device and the destination network element device, if the source network element device and the destination network element device are two network element devices on a ring object, for a communication link between the source network element device and the destination network element device, each ring object is split into two ring objects, for example, the source network element device is network element device R10, and when the destination network element device is network element device R4, for a communication link between network element device R10 and network element device R4, the ring object 1 is split into a ring object 11 (line object 4, line object 7, line object 8, line object 9) and a ring object 12 (line object 5, line object 6), and for the splitting of other ring objects 2 and ring objects 3, the splitting manner is similar to that of the ring object 1, and details are not repeated here.
Of course, the determination method of the chain object and the ring object is only an example, and the embodiment of the present invention is not limited to this determination method of the chain object and the ring object, and all the methods capable of determining the chain object 1, the chain object 2, the ring object 1, the ring object 2, and the ring object 3 are within the scope of the present invention.
Step 202, when the interrupt alarm is acquired, acquiring the position of the interrupt alarm.
Among them, the alarm types may include but are not limited to: the interruption alarm (indicating that there is a link interruption), the performance degradation alarm (indicating that there is a performance degradation of the network element device), and the like.
In the embodiment of the present invention, the process of acquiring the position where the interrupt type alarm occurs when the interrupt type alarm is acquired may specifically include, but is not limited to, the following ways: when receiving an interrupt alarm sent by two network element devices with a connection relation, acquiring a position where the interrupt alarm occurs as a loop link between the two network element devices; or, when receiving an interrupt-type alarm sent by two network element devices that do not have a connection relationship, acquiring that a position where the interrupt-type alarm occurs is a network element device between the two network element devices.
For example, when the network element device R7 fails, the network element device R6 cannot receive the data from the network element device R7, and sends an interrupt-type alarm to the network management device. In addition, when the network element device R7 fails, the network element device R8 cannot receive the data from the network element device R7, and sends an interrupt-type alarm to the network management device. Based on this, when the network management device receives the interrupt type alarm sent by the network element device R6 and the network element device R8 that do not have a connection relationship, the location where the interrupt type alarm occurs may be specifically: network element device 7 between network element device R6 and network element device R8.
For another example, when the loop link between the network element device R1 and the network element device R2 fails, the network element device R1 cannot receive the data from the network element device R2, and sends an interrupt-type alarm to the network management device. In addition, the network element device R2 will also be unable to receive the data from the network element device R1, and send an interrupt-type alarm to the network management device. Based on this, when the network management device receives the interrupt type alarm sent by the network element device R1 and the network element device R2 having a connection relationship, the location where the interrupt type alarm occurs may be specifically obtained as follows: a ring link between the network element device R1 and the network element device R2.
Of course, the above-mentioned manner of obtaining the position where the interrupt type alarm occurs is only an example, and the embodiment of the present invention is not limited to this manner of obtaining the position where the interrupt type alarm occurs, and all the manners of obtaining the position where the interrupt type alarm occurs are within the protection scope of the present invention, and it is only necessary to obtain whether the interrupt type alarm occurs on the network element device or on the loop link between the network element devices.
Step 203, if the interrupt alarm occurs on the network element device, when the communication link between the source network element device and the destination network element device passes through the link object, it is determined whether the link object includes the network element device.
If so, step 204 is performed directly. If not, the communication link between the source network element device and the destination network element device can be determined, and the link object passed through is not interrupted.
Step 204, it is determined that the communication link between the source network element device and the destination network element device has been interrupted.
In the embodiment of the present invention, when the interrupt type alarm occurs on the network element device and a communication link between the source network element device and the destination network element device passes through the ring object, it is determined whether the ring object includes the network element device. If the network element device is not included, it can be determined that the communication link between the source network element device and the destination network element device has not been interrupted by the ring object. If the network element equipment is included, judging whether a communication link between the source network element equipment and the target network element equipment only corresponds to one ring object. And if only one ring object is corresponded, determining that the communication link between the source network element equipment and the destination network element equipment is interrupted. If the ring objects correspond to a plurality of ring objects, when all the ring objects contain the network element equipment corresponding to the interrupt type alarm, determining that the communication link between the source network element equipment and the target network element equipment is interrupted; and when all the ring objects do not contain the network element equipment corresponding to the interrupt type alarm, determining that the communication link between the source network element equipment and the target network element equipment is not interrupted.
In the embodiment of the present invention, when the interrupt-type alarm occurs on the loop link between the network element devices and the communication link between the source network element device and the destination network element device passes through the loop object, it is determined whether the loop object includes the loop link. If the ring link is not included, it can be determined that the communication link between the source network element device and the destination network element device has not been interrupted by the ring object. If the link is contained, judging whether the communication link between the source network element equipment and the target network element equipment only corresponds to one ring object. And if only one ring object is corresponded, determining that the communication link between the source network element equipment and the destination network element equipment is interrupted. If the ring objects correspond to a plurality of ring objects, when all the ring objects contain the ring links corresponding to the interrupt type alarms, determining that the communication link between the source network element equipment and the target network element equipment is interrupted; and when all the ring objects do not contain the ring links corresponding to the interrupt type alarms, determining that the communication link between the source network element equipment and the target network element equipment is not interrupted.
The following describes in detail the process of determining whether the communication link is interrupted or not in conjunction with a specific application scenario.
For example, assuming that the interrupt-type alarm occurs on the network element device R7, the source network element device is the network element device L3, and the destination network element device is the network element device R10, the communication link between the network element device L3 and the network element device R10 passes through the link object 2 (the link between the network element device L3 and the network element device L2, the link between the network element device L2 and the network element device L7). Therefore, it is determined whether the chain object 2 includes the network element device R7, and since the chain object 2 includes the network element device R7, it is determined that the communication link between the network element device L3 and the network element device R10 has been interrupted, and it is subsequently necessary to restore the communication link.
For example, assuming that the interrupt-type alarm occurs on the network element device R7, the source network element device is the network element device L1, and the destination network element device is the network element device R10, the communication link between the network element device L1 and the network element device R10 passes through the link object 1 (the link between the network element device L1 and the network element device R8). Therefore, it is determined whether the chain object 1 contains the network element device R7, and since the chain object 1 does not contain the network element device R7, it is determined that the communication link between the network element device L1 and the network element device R10 is not interrupted.
In summary, in the embodiment of the present invention, when a communication link between a source network element device and a destination network element device passes through a link object, if the link object includes a network element device corresponding to an interrupt-type alarm, the link object does not have a protection link because of limitations of a network structure, a chain network element, a topological connection, and the like, so that it can be directly determined that the communication link between the source network element device and the destination network element device has been interrupted.
In the embodiment of the invention, when the chain object comprises the network element equipment corresponding to the interrupt alarm, all communication links (communication links between the source network element equipment and the target network element equipment) passing through the chain object can be directly determined to have faults, and whether each communication link has the fault is not required to be judged one by one, so that the faults of a batch of communication links can be quickly analyzed, and the fault analysis efficiency is improved.
For another example, assuming that the interrupt class alarm occurs at the network element device R7, the source network element device is the network element device R6, and the destination network element device is the network element device R8, the communication link between the network element device R6 and the network element device R8 may pass through the ring object a (line object 12, line object 13), the ring object B (line object 11, line object 10, line object 9, line object 8, line object 7, line object 4, line object 3, line object 2), the ring object C (line object 11, line object 10, line object 6, line object 5, line object 3, line object 2). Since the ring object a contains the network element device R7 corresponding to the interrupt-type alarm and the ring objects B and C do not contain network element devices corresponding to the interrupt-type alarm, it can be determined that the communication link between the network element device R6 and the network element device R8 is not interrupted. Assuming that the communication link between the network element device R6 and the network element device R8 only passes through the ring object a, and not through the ring object B and the ring object C, it can be determined that the communication link between the network element device R6 and the network element device R8 has been broken.
For another example, assuming that the interrupt-type alarm occurs on the ring link between the network element device R7 and the network element device R6, the source network element device is the network element device R6, and the destination network element device is the network element device R8, the communication link between the network element device R6 and the network element device R8 may pass through the ring object a (line object 12, line object 13), the ring object B (line object 11, line object 10, line object 9, line object 8, line object 7, line object 4, line object 3, line object 2), the ring object C (line object 11, line object 10, line object 6, line object 5, line object 3, line object 2). Since the ring object a contains a ring link (a ring link between the network element device R7 and the network element device R6) corresponding to the interrupt-type alarm, while the ring object B and the ring object C do not contain a ring link corresponding to the interrupt-type alarm, it can be determined that the communication link between the network element device R6 and the network element device R8 is not interrupted. Further, assuming that the communication link between the network element device R6 and the network element device R8 only passes through the ring object a, and not the ring object B and the ring object C, it can be determined that the communication link between the network element device R6 and the network element device R8 has been broken.
To sum up, in the embodiments of the present invention, when a communication link between a source network element device and a destination network element device passes through a ring object, if the ring object includes a network element device/ring link corresponding to an interrupt-type alarm, because the ring object usually has a protection link due to limitations of a network structure, a chain-like network element, a topological connection, and the like, it is unable to directly determine whether the communication link between the source network element device and the destination network element device has been interrupted, and at this time, it is necessary to analyze one by one whether a plurality of ring objects (including a primary route and one or more standby routes) corresponding to the communication link between the source network element device and the destination network element device all include the network element device/ring link corresponding to the interrupt-type alarm, and then determine whether the communication link has been interrupted.
Based on the technical scheme, in the embodiment of the invention, whether the communication link between the source network element equipment and the target network element equipment is interrupted or not can be determined by directly utilizing the network topology structure and the interruption type alarm without manually analyzing whether the communication link between the source network element equipment and the target network element equipment is interrupted or not by a maintenance personnel, so that the workload of manual analysis can be reduced, the time of fault analysis can be reduced, the service of a user can be recovered as soon as possible, the use experience of the user is improved, the fault can be accurately analyzed, and the wrong conclusion can be avoided. Moreover, as long as the chain object contains the network element equipment corresponding to the interrupt alarm, it can be analyzed that all communication links (communication links between the source network element equipment and the destination network element equipment) passing through the chain object are interrupted, so that faults of a batch of communication links are quickly analyzed, the fault analysis efficiency is improved, and the pressure of fault analysis on the system is reduced. Moreover, the fault analysis can be performed more specifically, only the communication link which is likely to generate the fault is analyzed, the analysis precision is improved, and the fault analysis time after the network element equipment interrupts the alarm can be saved.
Based on the same inventive concept as the method, the embodiment of the invention also provides a fault analysis device of the communication link, and the fault analysis device of the communication link is applied to network management equipment. The fault analysis device of the communication link may be implemented by software, or may be implemented by hardware or a combination of hardware and software. Taking a software implementation as an example, as a device in a logical sense, the device is formed by reading a corresponding computer program instruction in a nonvolatile memory through a processor of the network management device where the device is located. From a hardware aspect, as shown in fig. 3, a hardware structure diagram of a network management device in which a fault analysis device of a communication link according to the present invention is located is shown, where the network management device may further include other hardware, such as a forwarding chip, a network interface, and a memory, which are responsible for processing a packet, in addition to the processor and the nonvolatile memory shown in fig. 3; in terms of hardware structure, the network management device may also be a distributed device, and may include multiple interface cards, so as to perform extension of message processing on a hardware layer.
As shown in fig. 4, a structure diagram of a failure analysis apparatus for a communication link according to the present invention specifically includes:
the acquisition module 11 is configured to acquire a network topology structure, acquire an interrupt alarm, and acquire a position where the interrupt alarm occurs when the interrupt alarm is acquired;
a determining module 12 for determining a chain object and a ring object using the network topology;
a processing module 13, configured to, when the interrupt-type alarm occurs on a network element device, and when a communication link between a source network element device and a destination network element device passes through a link object, determine whether the link object includes the network element device; and if so, determining that the communication link between the source network element equipment and the destination network element equipment is interrupted.
The processing module 13 is further configured to determine whether the ring object includes the network element device when the interrupt-type alarm occurs on the network element device and a communication link between the source network element device and the destination network element device passes through the ring object; if the network element equipment is included, judging whether a communication link between the source network element equipment and the target network element equipment only corresponds to a ring object; if only one ring object is corresponded, determining that the communication link between the source network element equipment and the target network element equipment is interrupted; if the ring objects correspond to a plurality of ring objects, when all the ring objects contain network element equipment corresponding to the interrupt-type alarm, determining that the communication link between the source network element equipment and the target network element equipment is interrupted; and when all the ring objects do not contain the network element equipment corresponding to the interrupt type alarm, determining that the communication link between the source network element equipment and the target network element equipment is not interrupted.
The processing module 13 is further configured to determine whether the ring object includes the ring link when the interrupt-type alarm occurs on the ring link between the network element devices and a communication link between the source network element device and the destination network element device passes through the ring object; if the ring link is included, judging whether the communication link between the source network element equipment and the target network element equipment only corresponds to one ring object; if only one ring object is corresponded, determining that the communication link between the source network element equipment and the target network element equipment is interrupted; if the ring objects correspond to a plurality of ring objects, when all the ring objects contain a ring link corresponding to an interrupt alarm, determining that the communication link between the source network element equipment and the target network element equipment is interrupted; and when all the ring objects do not contain the ring link corresponding to the interrupt type alarm, determining that the communication link between the source network element equipment and the target network element equipment is not interrupted.
The determining module 12 is specifically configured to, in the process of determining a chain object and a ring object by using the network topology, analyze all network element devices from the network topology, abstract each network element device into a point object, and abstract a link between two network element devices having a connection relationship into a line object; recording all point objects and all line objects in a pre-configured link object table;
for each point object, the following procedure is performed: A. judging whether the link object table only corresponds to one line object; if yes, executing B; B. removing the corresponding line object from the link object table, and judging whether another point object of the line object corresponds to only one line object in the link object table; if yes, returning to continue executing B; if not, executing C; C. determining links formed by all the moved line objects as chain objects;
and determining a loop formed by the remaining line objects in the link object table as a loop object.
The obtaining module 11 is specifically configured to, in a process of obtaining a position where an interrupt type alarm occurs when the interrupt type alarm is obtained, and when an interrupt type alarm sent by two network element devices having a connection relationship is received, obtain a position where the interrupt type alarm occurs as a loop link between the two network element devices; or, when receiving an interrupt-type alarm sent by two network element devices that do not have a connection relationship, acquiring a position where the interrupt-type alarm occurs as a network element device between the two network element devices.
The modules of the device can be integrated into a whole or can be separately deployed. The modules can be combined into one module, and can also be further split into a plurality of sub-modules.
Through the above description of the embodiments, those skilled in the art will clearly understand that the present invention may be implemented by software plus a necessary general hardware platform, and certainly may also be implemented by hardware, but in many cases, the former is a better embodiment. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute the methods according to the embodiments of the present invention. Those skilled in the art will appreciate that the drawings are merely schematic representations of one preferred embodiment and that the blocks or flow diagrams in the drawings are not necessarily required to practice the present invention.
Those skilled in the art will appreciate that the modules in the devices in the embodiments may be distributed in the devices in the embodiments according to the description of the embodiments, and may be correspondingly changed in one or more devices different from the embodiments. The modules of the above embodiments may be combined into one module, or further split into multiple sub-modules. The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
The above disclosure is only for a few specific embodiments of the present invention, but the present invention is not limited thereto, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.
Claims (10)
1. A method of fault analysis of a communication link, the method comprising the steps of:
acquiring a network topological structure, and determining a chain object and a ring object by using the network topological structure;
when the interrupt alarm is acquired, acquiring the position of the interrupt alarm;
if the interrupt alarm occurs on the network element equipment, when a communication link between the source network element equipment and the target network element equipment passes through a link object, judging whether the link object comprises the network element equipment;
if so, it is determined that the communication link between the source network element device and the destination network element device has been interrupted.
2. The method of claim 1, further comprising:
when the interrupt alarm occurs on the network element equipment and a communication link between the source network element equipment and the target network element equipment passes through a ring object, judging whether the ring object comprises the network element equipment or not;
if the network element equipment is included, judging whether a communication link between the source network element equipment and the target network element equipment only corresponds to a ring object; if only one ring object is corresponded, determining that the communication link between the source network element equipment and the target network element equipment is interrupted;
if the ring objects correspond to a plurality of ring objects, when all the ring objects contain network element equipment corresponding to the interrupt-type alarm, determining that the communication link between the source network element equipment and the target network element equipment is interrupted; and when all the ring objects do not contain the network element equipment corresponding to the interrupt type alarm, determining that the communication link between the source network element equipment and the target network element equipment is not interrupted.
3. The method of claim 1, further comprising:
when the interrupt alarm occurs on a loop link between network element devices and a communication link between a source network element device and a target network element device passes through a loop object, judging whether the loop object comprises the loop link;
if the ring link is included, judging whether the communication link between the source network element equipment and the target network element equipment only corresponds to one ring object; if only one ring object is corresponded, determining that the communication link between the source network element equipment and the target network element equipment is interrupted;
if the ring objects correspond to a plurality of ring objects, when all the ring objects contain a ring link corresponding to an interrupt alarm, determining that the communication link between the source network element equipment and the target network element equipment is interrupted; and when all the ring objects do not contain the ring link corresponding to the interrupt type alarm, determining that the communication link between the source network element equipment and the target network element equipment is not interrupted.
4. The method according to any of claims 1-3, wherein the process of determining chain objects and ring objects using the network topology specifically comprises:
analyzing all network element devices from the network topological structure, abstracting each network element device into a point object, and abstracting a link between two network element devices with a connection relation into a line object;
recording all point objects and all line objects in a pre-configured link object table;
for each point object, the following steps are performed: step A, judging whether the link object table only corresponds to one line object; if yes, executing step B; step B, removing the corresponding line object from the link object table, and judging whether another point object of the line object corresponds to only one line object in the link object table; if yes, returning to continue to execute the step B; if not, executing the step C; step C, determining links formed by all the moved line objects as chain objects;
and determining a loop formed by the remaining line objects in the link object table as a loop object.
5. The method according to any one of claims 1 to 3, wherein the process of obtaining the position where the interrupt type alarm occurs when obtaining the interrupt type alarm specifically includes:
when receiving an interrupt alarm sent by two network element devices having a connection relation, acquiring a position where the interrupt alarm occurs as a loop link between the two network element devices; or,
when receiving an interrupt alarm sent by two network element devices which do not have a connection relation, acquiring the position where the interrupt alarm occurs as the network element device between the two network element devices.
6. An apparatus for analyzing a failure of a communication link, the apparatus comprising:
the acquisition module is used for acquiring a network topology structure, acquiring an interrupt alarm and acquiring the position of the interrupt alarm when the interrupt alarm is acquired;
a determining module for determining a chain object and a ring object using the network topology;
a processing module, configured to determine whether a link object includes the network element device when the interrupt-type alarm occurs on the network element device and when a communication link between a source network element device and a destination network element device passes through the link object; and if so, determining that the communication link between the source network element equipment and the destination network element equipment is interrupted.
7. The apparatus of claim 6,
the processing module is further configured to determine whether the ring object includes the network element device when the interrupt-type alarm occurs on the network element device and a communication link between the source network element device and the destination network element device passes through the ring object; if the network element equipment is included, judging whether a communication link between the source network element equipment and the target network element equipment only corresponds to a ring object; if only one ring object is corresponded, determining that the communication link between the source network element equipment and the target network element equipment is interrupted; if the ring objects correspond to a plurality of ring objects, when all the ring objects contain network element equipment corresponding to the interrupt-type alarm, determining that the communication link between the source network element equipment and the target network element equipment is interrupted; and when all the ring objects do not contain the network element equipment corresponding to the interrupt type alarm, determining that the communication link between the source network element equipment and the target network element equipment is not interrupted.
8. The apparatus of claim 6,
the processing module is further configured to determine whether the ring object includes the ring link when the interrupt-type alarm occurs on the ring link between the network element devices and a communication link between the source network element device and the destination network element device passes through the ring object; if the ring link is included, judging whether the communication link between the source network element equipment and the target network element equipment only corresponds to one ring object; if only one ring object is corresponded, determining that the communication link between the source network element equipment and the target network element equipment is interrupted; if the ring objects correspond to a plurality of ring objects, when all the ring objects contain a ring link corresponding to an interrupt alarm, determining that the communication link between the source network element equipment and the target network element equipment is interrupted; and when all the ring objects do not contain the ring link corresponding to the interrupt type alarm, determining that the communication link between the source network element equipment and the target network element equipment is not interrupted.
9. The apparatus according to any one of claims 6 to 8,
the determining module is specifically configured to, in a process of determining a chain object and a ring object by using the network topology, analyze all network element devices from the network topology, abstract each network element device into a point object, and abstract a link between two network element devices having a connection relationship into a line object; recording all point objects and all line objects in a pre-configured link object table;
for each point object, the following procedure is performed: A. judging whether the link object table only corresponds to one line object; if yes, executing B; B. removing the corresponding line object from the link object table, and judging whether another point object of the line object corresponds to only one line object in the link object table; if yes, returning to continue executing B; if not, executing C; C. determining links formed by all the moved line objects as chain objects;
and determining a loop formed by the remaining line objects in the link object table as a loop object.
10. The apparatus according to any one of claims 6 to 8,
the obtaining module is specifically configured to, in a process of obtaining a position where an interrupt type alarm occurs when the interrupt type alarm is obtained, obtain, when an interrupt type alarm sent by two network element devices having a connection relationship is received, a position where the interrupt type alarm occurs as a loop link between the two network element devices; or, when receiving an interrupt-type alarm sent by two network element devices that do not have a connection relationship, acquiring a position where the interrupt-type alarm occurs as a network element device between the two network element devices.
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