JP6512624B2 - Communication management system, communication management program and management device - Google Patents

Description

The present invention is, communication management system, a communications manager and a management apparatus, in particular, Cie stem notifies the effect in case of failure, a program, and apparatus.

  The recent development of IT (Information Technology) technology has increased the scale of networks and complicated networks. Therefore, recently, by changing the communication section appropriately according to the occurrence of a failure or the like in the load or communication path, there is a technology for bypassing the location even if a failure or the like occurs and preventing communication interruption. It is used.

  Further, in order to prevent such communication interruption, a technology has been proposed in which a communication path in a network is monitored to specify an abnormal path, and the communication path is automatically switched (for example, Patent Document 1).

JP, 2006-222718, A

  By the way, in a system that performs communication via such a network, it is difficult to monitor the soundness of an E2E (End to End) communication section because the communication path of the network is complicated as described above. There was a problem.

  This is because the route of the communication section is fluidly switched and data does not pass through a certain route, for example, in the case of avoiding a failure or in the case of distributing the load of traffic.

  In addition, in the case of monitoring the E2E communication section by the communication check, the communication band is used for the communication check, and the opposite check target device needs to be operated. At this time, if a break occurs in the communication section, it is not possible to grasp the location that is the cause of the break.

  Furthermore, there is a problem that it is difficult to extract an E2E communication section affected by the maintenance stop when maintenance stop of a network section or a link section connecting the network apparatuses.

  This is because it is necessary to identify the characteristics of the network layer affected by the maintenance stop and the influence range, and to identify the E2E communication section affected. In particular, when there are a plurality of stopping points due to maintenance stop, it becomes more difficult to specify the influence range.

Accordingly, the present invention, the was made in view of the problems in the prior art to monitor the health of the E2E communication path, the communication management capable of notifying the information about the fault that has occurred in the communication section It aims at providing a system, a communication management program, and a management device.

In order to achieve the above object , the present invention is a communication management system for managing a communication path in a network system, comprising: a plurality of network devices and / or a link section formed by the connection of the plurality of network devices. Based on a means for modeling a system, a means for setting a network device and / or a link section to be stopped due to maintenance or a fault, setting information indicating the setting of the halt, and modeling information obtained by the modeling And means for setting priorities on a plurality of paths among the communication paths, and means for changing the priorities of the plurality of paths and executing simulation again. It is characterized by

Further, the present invention is a communication management program for managing a communication path in a network system, and modeling a network system comprising a plurality of network devices and / or link sections formed by the connection of the plurality of network devices, A network device and / or a link section to be stopped due to maintenance or failure is set, and influence information indicating an influence due to a failure is notified based on setting information indicating the setting of the stop and modeling information obtained by the modeling , Priority is set to a plurality of routes among the communication routes, the priorities of the plurality of routes are changed, and the simulation is executed again .

Further, the present invention is a management device that manages communication paths in a network system, and is a control unit that models a network system including a plurality of network devices and / or link sections formed by the connection of the plurality of network devices. And a database for storing modeling information obtained by the modeling, and a display unit for displaying influence information indicating an influence of a failure on the network device, wherein the control unit includes the network device and / or the network device set by the operator. Alternatively, on the basis of the fault information indicating the fault for the link section and the modeling information registered in the database, the impact information for notifying the influence of the fault indicated by the fault information is generated, and the display unit is notified. is displayed, a plurality of paths of said communication path Set Sakido, to change the priority of the plurality of paths, characterized that you run the simulation again.

  As described above, according to the present invention, it is possible to monitor the soundness of an E2E communication section and to notify information on a failure that has occurred in the communication section.

It is a block diagram showing a reference example of composition of a communication management system concerning the present invention. It is the schematic for demonstrating the case where switch SW1 stops. It is the schematic for demonstrating the case where router R5 stops. It is a block diagram which shows the reference example of a structure of the management apparatus which concerns on this invention. It is a schematic diagram for explaining a simulation screen according to an embodiment.

  Next, an embodiment for carrying out the present invention will be described in detail with reference to the drawings.

Figure 1 shows a reference example of a configuration of the communication pipe Rishi stem according to the present invention. In this example, switches SW1 to SW8 and routers R1 to R6 are provided as network devices between the systems # 1A and # 2A and the systems # 1B and # 2B. A link section is provided by connecting each network device via a plurality of interfaces (hereinafter referred to as “IF”) provided in each network device.

  Specifically, each network device is connected as follows. The IF3 of the switch SW1 and the IF1 of the router R1 are connected, and the IF4 of the switch SW1 and the IF1 of the router R2 are connected. The IF3 of the switch SW2 is connected to the IF2 of the router R1, the IF4 of the switch SW2 is connected to the IF2 of the router R2, and the IF3 of the switch SW3 is connected to the IF3 of the router R1. Further, the IF 4 of the switch SW 3 and the IF 3 of the router R 2 are connected, and the IF 3 of the switch SW 4 and the IF 4 of the router R 1 are connected. Further, the IF 4 of the switch SW 4 and the IF 4 of the router R 2 are connected.

  Furthermore, the IF 5 of the router R1 is connected to the IF 1 of the router R5, the IF 6 of the router R1 is connected to the IF 5 of the router R2, and the IF 6 of the router R2 is connected to the IF1 of the router R6. Furthermore, the IF2 of the router R5 and the IF5 of the router R3 are connected, and the IF2 of the router R6 and the IF 6 of the router R4 are connected.

  The IF1 of the router R3 is connected to the IF1 of the switch SW5, the IF2 of the router R3 is connected to the IF1 of the switch SW6, the IF3 of the router R3 is connected to the IF1 of the switch SW7, and the IF4 of the router R3 and the switch The IF1 of the SW8 is connected, and the IF6 of the router R3 and the IF5 of the router R4 are connected.

  Furthermore, IF1 of router R4 is connected to IF2 of switch SW5, IF2 of router R4 is connected to IF2 of switch SW6, IF3 of router R4 is connected to IF2 of switch SW7, and IF4 of router R4 and switch The IF2 of SW8 is connected.

  FIG. 1 (b) is a diagram modeling the network system shown in FIG. 1 (a), in which the network devices in the E2E communication zone and the link zones between the network devices are displayed for each block.

  A section between the switch SW1 and the router R1 and between the router R3 and the switch SW5 is a section of the network layer L2, and the other is a section of a MPLS (Multi-Protocol Label Switching) network.

  As shown in FIG. 1 (b), in the E2E communication section, the data path is formed by blocks connected continuously in the horizontal direction, and when there are a plurality of blocks in the vertical direction, a plurality of paths are set. Indicates that it will be done. In this example, it can be seen that a plurality of routes (LSP (Label Switched Path) 1 and LSP 2) are set in the MPLS network section.

  Further, in the LSP, it is necessary to individually set one direction (uplink) and the other direction (downlink) in data communication, and in this example, uplink and downlink block sequences are displayed in series.

  Next, in the network system shown in FIG. 1A, the state of the communication section when a failure occurs will be described using a specific example.

  FIG. 2 is a failure determination image when the switch SW1 is stopped. As shown in FIG. 2B, when the switch SW1 provided in the L2 section is stopped, the bypass path can not be set in the E2E communication section. Therefore, it determines with "disruption" of an E2E communication area as influence by failure.

  FIG. 3 is a failure determination image when the router R5 is stopped. As shown in FIG. 3B, when the router R5 provided in the MPLS network section is stopped, it is possible to set a detour path in the E2E communication section. Therefore, it is determined as "instant loss" due to the switching of the path route of the E2E communication section as the influence of the failure. In this case, communication can be continued because the communication section is not completely disconnected.

  Next, a method of notifying of an influence on a communication section when a failure occurs will be described. In the present embodiment, when a failure occurs in the communication section, an influence on the communication section due to the occurrence of the failure is notified to the management device that manages the network system. In such a case, the management apparatus displays the degree of influence, such as the affected LSP, the E2E communication section, and the "disruption" and the "short break".

As shown in FIG. 4, the management apparatus 1 receiving the notification is roughly divided into a control unit 10, a database (DB) 11, a communication unit 12, an operation unit 13 and a display unit 14, and is connected to the network 2. The management apparatus 1 is provided, for example, on a network different from the network system to which the present embodiment is applied, and manages the network system from the outside. The present invention is not limited to this example, and may be provided in the network system, for example.

  The control unit 10 controls the entire management device 1. The control unit 10 specifies the route of the MPLS network based on the transit node of the static route registered in each network device in the network system via the communication unit 12 described later, and the database 11 describes modeling information obtained by modeling the route. Register on

  Further, the control unit 10 refers to the modeling information registered in the database 11 based on the fault information supplied from each network device in the network system, and performs the impact determination process on the E2E communication section due to the fault occurrence. Then, this influence determination processing generates influence information indicating an LSP affected by a failure, an E2E communication section, an influence degree, and the like, and supplies the influence information to the display unit 14.

  The database 11 stores modeling information modeled by the control unit 10. The communication unit 12 supplies various types of information such as failure information supplied from each network device in the network system to the control unit 10 based on control by the control unit 10.

  The operation unit 13 supplies the control unit 10 with operation information based on the operation of the operator. The display unit 14 displays failure information and influence information indicating the influence of the failure, and notifies the operator of the same.

  In this example, although the display by the display unit 14 is used as a method of notifying the operator of the influence of the occurrence of a failure, the present invention is not limited to this. For example, a voice output unit (not shown) may be provided in the management device 1 to notify that a failure has occurred in the network system or that the failure is affected by a voice such as a buzzer.

As described above, according to this reference example , when a failure occurs in the E2E communication section of the network system, the influence determination is performed to determine the influence of the failure based on the failure information and the modeling information registered in the database 11 Because the process is performed, the fault and its effect can be notified to the operator of the management apparatus.

Next, an embodiment of the present invention will be described. The implementation form of this, using modeling information registered in the database 11, and when the maintenance outage predetermined location (network devices and / or link section), the impact of a failure occurs in a predetermined position It can be simulated and notified.

FIG. 5 is an example of a simulation screen according to the present embodiment. In this screen, one or more places to be stopped due to maintenance or a fault are set, and simulation results in the case where a fault occurs in the area 20 where the setting information is displayed and the place set in the area 20 are displayed. Regions 30 and 40 are provided.

  An area 30 displays LSPs that are affected when a failure occurs at a set location, and an area 40 displays E2E communication sections that are affected.

  Here, when a plurality of LSP routes are set up in the MPLS network section, the affected routes are displayed in the area 30 for each priority (priority) of each route. (Primary) is selected.

  At this time, when it is desired to simulate by changing the priority, the simulation is executed again in a state in which a route (Secondary) having a different priority is selected, thereby affecting the E2E communication section based on the selected route. It is displayed in the area 40.

As described above, according to the present embodiment, the influence of the stop is simulated in advance based on the modeling information registered in advance in the database 11 by setting one or more places to be stopped due to maintenance or failure. Can.

Reference Signs List 1 management apparatus 2 network 10 control unit 11 database 12 communication unit 13 operation unit 14 display unit 20, 30, 40 area

Claims (3)

A communication management system for managing communication paths in a network system, comprising:
A means for modeling a network system consisting of a plurality of network devices and / or link sections formed by connections of the plurality of network devices;
A means for setting a network device and / or a link section to be stopped due to maintenance or failure;
Means for notifying influence information indicating an influence of a failure based on setting information indicating the setting of the stop and modeling information obtained by the modeling;
A means for setting priorities on a plurality of routes among the communication routes;
A communication management system comprising: means for changing the priorities of the plurality of routes and executing simulation again. A communication management program for managing communication paths in a network system, comprising:
Modeling a network system consisting of a plurality of network devices and / or link sections formed by connections of the plurality of network devices;
Set up network devices and / or link sections that stop due to maintenance or failure,
Based on setting information indicating the setting of the stop and modeling information obtained by the modeling, notification of influence information indicating an influence of a failure is provided,
Setting priorities to a plurality of routes among the communication routes;
A communication management program comprising changing priorities of the plurality of routes and executing simulation again. A management apparatus that manages communication paths in a network system,
A control unit that models a network system including a plurality of network devices and / or link sections formed by connections of the plurality of network devices;
A database storing modeling information obtained by the modeling;
A display unit that displays influence information indicating an influence of a fault on the network device;
The control unit notifies an influence of a fault indicated by the fault information based on fault information indicating a fault with respect to the network device and / or the link section set by the operator and the modeling information registered in the database. Generating influence information to be displayed on the display unit,
Setting priorities to a plurality of routes among the communication routes;
A management apparatus characterized by changing priorities of the plurality of routes and executing simulation again.

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