JP6570606B2 - Work management apparatus, work management method and program - Google Patents

Description

  The present invention relates to a work management apparatus, a work management method, and a program.

  At present, the use of networks is widespread, and technology that simulates the extent to which the network is affected by malfunctions of components and connection cables is important, considering the status of network components and connection cables. . For example, in Patent Document 1, in a network system in which a plurality of component devices are connected by connection cables to form a network, all route patterns of the network configuration are extracted as “tables”, and then the component devices and connections used in the route A network system failure occurrence simulation method is disclosed, which simulates an influence range of a system function affected by normal / abnormal route patterns depending on a cable state.

JP 2004-31224 A

  By the way, it is necessary to work on network components and connection cables on a daily basis. The network system failure occurrence simulation method described above is effective when planning work on network configuration devices and connection cables.

  However, even after the work is started, the state of the network changes from moment to moment due to, for example, the distribution of an operating system (OS) and the start of a moving image distribution service accompanying the start of sales of new mobile terminals. For this reason, if the work is performed under a situation where the network state has changed after the work is planned, communication via the network may become unstable.

  Therefore, the present invention provides a work management apparatus, a work management method, and a program capable of avoiding instability of communication via a network even if the state of the network changes after work on the network is started. For the purpose.

The work management apparatus according to an aspect of the present invention acquires first information indicating a state of a target facility of the work at least once after the start of work that may affect network performance is recognized. The first information acquisition unit, the second information acquisition unit for acquiring the second information indicating the state of the entire network, and the second information at least once after the start of the work is recognized. As a result, when the work is continued as a result of the simulation, an execution unit that executes a simulation of the state of the network based on at least one of the first information and the second information, the work is At least whether it is affecting the performance and whether the work may affect the performance. A determining section for determining one, when the work is being or the work gives influence on the performance is judged that there can affect the performance, depending on the degree of impact on the performance An output unit that outputs information indicating stop of the work, interruption of the work, continuation of the work, or return to a state before the work .

The work management method according to an aspect of the present invention is a first work management method that indicates a state of a target facility of the work at least once after the computer recognizes the start of work that may affect network performance. A first information acquisition step for acquiring information, a second information acquisition step for acquiring second information indicating the state of the entire network at least once after the start of the work is recognized, and the second information In response to a change, an execution step of executing a simulation of the state of the network based on at least one of the first information and the second information, and if the work is continued as a result of the simulation, Whether the work is affecting the performance and the work is affecting the performance. A judgment step of that possibility whether the determining at least one is, when the operation is or the work affecting the performance has been determined that there may affect the performance, According to the degree of influence on the performance, an output step of outputting information indicating stop of the work, interruption of the work, continuation of the work or return to the state before the work is executed.

  A program according to an aspect of the present invention causes a computer to function as the above-described work management device.

  According to the present invention, even if the state of the network changes after work on the network is started, it is possible to prevent communication via the network from becoming unstable.

FIG. 1 is a diagram illustrating an example of a simulation apparatus, a monitoring apparatus, a network, and a work management apparatus according to the embodiment and their connection relations. FIG. 2 is a diagram illustrating an example of a work process that may affect the performance of the network according to the embodiment. FIG. 3 is a diagram illustrating an example of a network backbone, an area network, and nodes according to the embodiment, and a connection relationship therebetween. FIG. 4 is a flowchart illustrating an example of processing performed by the work management apparatus according to the embodiment.

  A preferred embodiment of the present invention will be described with reference to the accompanying drawings. In addition, in each figure, what attached | subjected the same code | symbol has the same or similar structure.

[Embodiment]
First, the simulation device 2, the monitoring device 1, the network 3, and the work management device 4 according to the embodiment will be described with reference to FIGS. FIG. 1 is a diagram illustrating an example of a simulation apparatus, a monitoring apparatus, a network, and a work management apparatus according to the embodiment and their connection relations. FIG. 2 is a diagram illustrating an example of a work process that may affect the performance of the network according to the embodiment.

  The monitoring device 1 appropriately acquires first information from a node of the network 3, for example, a router interface or a switch connected to the router. The first information is information indicating the state of the target facility of work, for example, a signal output when the router switches the engine, and output from a bus connected to an ASIC (Application Specific Integrated Circuit) included in the router. Signal. Moreover, the monitoring apparatus 1 acquires 2nd information from the network 3 suitably. The second information is information indicating the state of the entire network 3.

  The simulation apparatus 2 simulates the state of the entire network 3 assuming various cases in a state where work is being performed at a node of the network 3 or a failure has occurred in the network 3. Here, for example, when a failure occurs due to a natural disaster or the like at a node of the network 3, when a device related to the node is changed, added or removed, a new OS is distributed, a new video is distributed. When an event such as the start of a service occurs. The failure is, for example, an event that occurs in a node where communication is impossible and an event in which traffic on the line of the network 3 is tight, for example, an event in which the traffic exceeds a predetermined value. The state of the entire network 3 is, for example, the traffic of each line constituting the network 3, the traffic flow of each line, the design value of each line, the state of the nodes included in the network 3, and the availability of communication between the nodes of the network 3 Say. A node is a data terminal device such as a router.

  The simulation apparatus 2 includes, for example, a time zone, a design value of each line, traffic and bandwidth occupancy, the number and type of clients under each node, the presence and performance of dark fiber in each line, the physical configuration and logic of the network 3 The simulation is performed in consideration of the configuration, the MAC address (Media Access Control Address) of the data link layer included in the network 3, the IP address (Internet Protocol Address) of the network layer included in the network 3, and the information about the failure collected from the node. Can do.

  Here, the design value is a parameter assigned to each line. For example, when the network 3 employs OSPF (Open Shortest Path First) as a protocol, the larger this parameter is, the more difficult data flows. The design value means the cost or weight in the Dijkstra method. The MAC address is a physical address assigned to hardware constituting the network 3 in order to identify each node on the network 3. The IP address is a logical address for determining hardware that transmits and receives a packet.

  The simulation device 2 uses, for example, at least one of a MAC address and an IP address when simulating traffic on each line of the network 3. Further, the simulation apparatus 2 can also perform simulation on the influence of a logical failure induced by a physical failure occurring in the network 3 on the network 3. Furthermore, after the work is started, for example, the simulation apparatus 2 can perform the simulation of the state of the network 3 at least once between the start of work and the end of work shown in FIG. it can.

  Moreover, the simulation apparatus 2 can perform a convolution simulation. Here, the convolution simulation is a simulation that assumes a case where a failure occurs in another node when one operation and one failure occur.

  The network 3 is, for example, a network including at least one of a physical layer, a data link layer, and a network layer of the OSI 7 hierarchical reference model. Further, the network 3 may be a network of another layer, and includes a physical network and a logical network.

  FIG. 3 is a diagram illustrating an example of a network backbone, an area network, and nodes according to the embodiment, and a connection relationship therebetween. As shown in FIG. 3, the network 3 includes a backbone 31 and an area network 32, for example. The area network 32 includes a node 32a, a node 32b, a node 32c, a node 32d, a node 32e, and a node 32f.

  The backbone 31 is a trunk line that forms the core of the network 3, and is connected to the nodes 32a and 32f so that they can communicate with each other, for example, as shown in FIG. The area network 32 is a communication line network extending from the backbone 31 to each client. For example, as shown in FIG. 3, the area network 32 includes six nodes that are connected in a ring shape and can communicate with adjacent nodes. The communication line to each client extends from any one of these six nodes, for example.

  As shown in FIG. 1, the work management device 4 includes a recognition unit 41, a first information acquisition unit 42, a second information acquisition unit 43, an execution unit 44, a determination unit 45, and an output unit 46. .

  The recognizing unit 41 receives registration of work that may affect the performance of the network 3 and recognizes the start of the work. For example, the recognizing unit 41 accepts registration of work determined to be executable by a worker as a result of simulation at the time of work planning based on information input to the terminal, and recognizes the start of the work.

  The first information acquisition unit 42 indicates the state of the target equipment of the work at least once, more preferably in real time after the start of the work that may affect the performance of the network 3 is recognized. Is acquired from the monitoring device 1. The start of the work mentioned here means that the worker actually starts the work.

  The second information acquisition unit 43 acquires the second information indicating the state of the entire network 3 from the monitoring device 1 at least once after the start of work is recognized, and more preferably in real time. The start of the work mentioned here is the same as described above.

  The execution unit 44 causes the simulation apparatus 2 to execute a simulation of the state of the network 3 based on at least one of the first information and the second information, and acquires the simulation result. For example, the execution unit 44 executes the simulation in real time from the start of the work shown in FIG. 2 to the end of the work, and continues to acquire the result of the simulation in real time. Note that the execution unit 44 may cause the simulation to be executed in response to a change in the second information.

  The determination unit 45 determines whether or not the work recognized by the recognition unit 41 has been started and whether or not the work has been completed. In addition, when the work is continued as a result of the simulation, the determination unit 45 may affect whether or not the work affects the performance of the network 3, and the work may affect the performance of the network 3. Whether or not is determined.

  For example, when a node that cannot communicate in the fourth process shown in FIG. 2 occurs in the determination unit 45, the work accepted by the recognition unit 41 affects the performance of the network 3. It can be judged that there is.

  Specifically, when a failure that interrupts communication occurs in the node 32f when the operation involving the interruption of communication is performed in the node 32a illustrated in FIG. 3, the node 32b, the node 32c, the node 32d, and the node 32e becomes a node incapable of communication. Similarly, when a failure that interrupts communication occurs in the node 32e while an operation involving the interruption of communication is being performed in the node 32a, the node 32b, the node 32c, and the node 32d become nodes that cannot communicate with each other. turn into. The same applies when a failure that interrupts communication occurs at the node 32d or the node 32c. Therefore, in these cases, the determination unit 45 determines that the operation at the node 32a affects or may affect the performance of the network 3.

  The output unit 46 outputs the result determined by the determination unit 45. The output unit 46 determines the degree of the influence on the performance when it is determined that the work recognized by the recognition unit 41 has an effect on the performance, or the work has a possibility of affecting the performance. The content to be output may be changed accordingly. Further, the output unit 46 promptly outputs the result determined by the determination unit 45 when it is determined that the work accepted by the recognition unit 41 affects or possibly affects the performance of the network 3. Is preferred.

  The degree of influence on performance is based on, for example, the number and type of clients affected by performance degradation, examples of performance degradation that occurred in the past, and the types of signals acquired from the nodes of network 3 Calculated.

  Further, for example, the output unit 46 may output information indicating stop of work, stop of work, continuation of work, or return to a state before work according to the degree of influence on performance.

  Here, the information indicating the cancellation of the work is information that prompts the user to cancel the work that was scheduled to proceed. The information indicating the interruption of the work is information that promptly stops the work that is currently in progress and resumes the work after there is no possibility of affecting the performance of the network 3. The information indicating the continuation of work is information that prompts the user to complete all remaining processes that are not completed.

  For example, when the first step shown in FIG. 2 is completed and the second step is in progress, the information indicating the return to the state before the work is set to the state before the first step is performed on the network 3. Information that prompts the user to return. Further, the information indicating the return to the state before the work may be output after the sixth step shown in FIG. 2 is completed. This is because an initial failure may occur after all the work steps are completed.

  The output unit 46 may transmit a signal for stopping work that may affect the performance of the network 3. For example, when the work on the network 3 is a logical work using the terminal software, this signal works directly on the terminal software to stop the logical work.

  An example of processing performed by the work management apparatus 4 according to the embodiment will be described with reference to FIG. FIG. 4 is a flowchart illustrating an example of processing performed by the work management apparatus according to the embodiment.

  In step S <b> 1, the recognition unit 41 receives registration of work that may affect the performance of the network 3.

  In step S2, the determination unit 45 determines whether or not the start of the work registered in step S1 has been recognized. When the determination unit 45 determines that the start of the work is recognized (step S2: Yes), the process proceeds to step S3, and when it is determined that the start of the work is not recognized (step S2: No), Wait until it is determined that the start of the work has been recognized.

  In step S3, the first information acquisition unit 42 starts acquiring the first information, the second information acquisition unit 43 starts acquiring the second information, and the execution unit 44 starts executing a simulation based on these information. Let

  In step S <b> 4, when the work recognized in step S <b> 1 is continued, the determination unit 45 determines whether the work affects the performance of the network 3. When the determination unit 45 determines that the work affects the performance of the network 3 (step S4: Yes), the process proceeds to step S7 and determines that the work does not affect the performance of the network 3 (Step S4: No), a process is advanced to step S5.

  In step S <b> 5, when the work recognized in step S <b> 1 is continued, the determination unit 45 determines whether or not the work may affect the performance of the network 3. If the determination unit 45 determines that there is such a possibility (step S5: Yes), the process proceeds to step S7. If it is determined that there is no such possibility (step S5: No), the process proceeds to step S6. .

  In step S6, the determination unit 45 determines whether or not the work recognized in step S1 has been completed. If the determination unit 45 determines that the work has been completed (step S6: Yes), the process proceeds to step S8. If the determination unit 45 determines that the work has not been completed (step S6: No), the process is performed. Return to step S4.

  In step S <b> 7, the output unit 46 outputs the result determined by the determination unit 45.

  In step S8, the first information acquisition unit 42 ends the acquisition of the first information, the second information acquisition unit 43 ends the acquisition of the second information, and the execution unit 44 ends the execution of the simulation based on the information. Let

  Note that the work management apparatus 4 may omit step S4 or step S5 described above. When step S4 is omitted, the work management device 4 executes step S5 after step S3, and executes step S5 after it is determined in step S3 that the work is not finished (step S6: No). . In addition, when the step S5 is omitted, when the work is continued in the step S4, the work management apparatus 4 determines that the work affects the performance of the network 3 (step S4: No). S6 is executed.

  The embodiment that is an example of the present invention has been described above. The work management device 4 obtains first information indicating the state of the work target equipment at least once after the start of work that may affect the performance of the network 3 is recognized. 42, the second information acquisition unit 43 that acquires the second information indicating the state of the entire network 3 at least once after the start of the work is recognized, and the first information and An execution unit 44 that executes a simulation of the state of the network 3 based on at least one of the second information, and if the operation is continued as a result of the simulation, whether the operation has an effect on performance and whether the operation is a performance A determination unit 45 that determines at least one of whether or not there is a possibility of affecting the output, and an output unit that outputs a result determined by the determination unit It includes a 6, a.

  Therefore, the work management apparatus 4 can output information indicating that communication via the network 3 may become unstable when the state of the network 3 changes after work on the network 3 is started. . Therefore, the work management device 4 prompts the worker, supervisor, network 3 manager, etc. of the work to stop the work, return to the middle stage or the state before the work, and communication by the network 3 is not performed. It is possible to avoid falling into a stable state.

  The embodiments described above are for facilitating the understanding of the present invention, and are not intended to limit the present invention. Each element included in the embodiment and its arrangement, material, condition, shape, size, and the like are not limited to those illustrated, and can be changed as appropriate. In addition, the structures shown in different embodiments can be partially replaced or combined.

  DESCRIPTION OF SYMBOLS 1 ... Monitoring apparatus, 2 ... Simulation apparatus, 3 ... Network, 31 ... Backbone, 32 ... Area network, 32a, 32b, 32c, 32d, 32e, 32f ... Node, 4 ... Work management apparatus, 41 ... Recognition part, 42 ... 1st information acquisition part, 43 ... 2nd information acquisition part, 44 ... Execution part, 45 ... Judgment part, 46 ... Output part

Claims (5)

A first information acquisition unit that acquires first information indicating the state of the target equipment of the work at least once after the start of the work that may affect the performance of the network is recognized;
A second information acquisition unit that acquires second information indicating the state of the entire network at least once after the start of the work is recognized;
An execution unit that executes a simulation of the state of the network based on at least one of the first information and the second information, triggered by a change in the second information,
If the work is continued as a result of the simulation, a determination is made to determine at least one of whether the work affects the performance and whether the work may affect the performance. And
When it is determined that the work affects the performance or the work may affect the performance, the work is stopped, the work is performed according to the degree of the influence on the performance. An output unit that outputs information indicating interruption, continuation of the work, or return to the state before the work ;
A work management apparatus comprising:   The said 2nd information contains the information which shows at least 1 of the traffic of the said network, the traffic flow of the said network, the structure of the said network, the design value of the said network, and the node contained in the said network. The work management device described.   The work management apparatus according to claim 1, wherein the network is a network including at least one of a network layer and a data link layer of an OSI 7 hierarchical reference model. On the computer,
A first information acquisition step of acquiring first information indicating the state of the target equipment of the work at least once after the start of the work that may affect the performance of the network is recognized;
A second information acquisition step of acquiring second information indicating a state of the entire network at least once after the start of the work is recognized;
An execution step of executing a simulation of the state of the network based on at least one of the first information and the second information, triggered by a change in the second information;
When the work is continued as a result of the simulation, it is determined whether or not the work has an influence on the performance and whether or not the work has an influence on the performance. A decision step;
When it is determined that the work affects the performance or the work may affect the performance, the work is stopped, the work is performed according to the degree of the influence on the performance. An output step of outputting information indicating interruption, continuation of the work or return to the state before the work ;
To execute,
Work management method. The program for functioning a computer as a work management apparatus as described in any one of Claim 1 to 3 .