JP2009059298A - Resource amount change monitoring method, resource amount change monitoring program, and resource amount change monitoring system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To eliminate the inefficiency when monitored by a maintenance person by changing configuration data autonomously in a communication system according to a virtualization technology. <P>SOLUTION: An allocation resource amount monitoring part 11 periodically monitors a resource amount to each application in response to an instruction of a change determining part 13 of determining change in an allocation resource amount, and report it to the change determining part 13. The change determining part 13 receiving the report compares an allocation resource amount to each managed application stored in an allocation resource amount storing part 12 with the reported resource amount, and determines whether the resource amount is changed. When the change is determined, the change determining part 13 requests an allocation resource amount change reporting part 14 to report the change to the application. The allocation resource amount change reporting part 14 receiving the request notifies the application of the change in the allocation resource amount. Each application receiving the report operates according to the reported resource amount. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a resource amount variation monitoring method, a resource amount variation monitoring program, and a resource amount variation monitoring system, and in particular, resource amount variation monitoring that realizes a plurality of communication systems using a virtualization technology that divides and combines resources in a pseudo manner. The present invention relates to a method, a resource amount fluctuation monitoring program, and a resource amount fluctuation monitoring system.

  In general, hardware such as a physical router, a cable, and a server is integrated to form one network. A technique for constructing a virtually partitioned network on a network configured in this way has been proposed (for example, Non-Patent Document 1). As shown in FIG. 7, this technology virtually creates a plurality of networks 2 and 3 on a real network (physical network) 1. Thereby, a plurality of types of networks can be constructed physically on one network. A technique for constructing the virtual network on the real network is called a post-Internet (Internet), and is one of the techniques for solving various drawbacks in the Internet.

The plurality of networks are, for example, a network based on voice communication line switching and a network based on data communication packet switching. The hardware resources used by these networks can be allocated to each other. Here, the hardware resource refers to a CPU (Central Processing Unit) of a router, a CPU of a server, a memory, a hard disk, and the like.
STANFORD UNIVERSITY "Clean Slate Design for Internet", [online], [Search August 22, 2007], Internet <URL: http://cleanslate.stanford.edu/index.php>

  Generally, setting of various configuration data (station data, system data, etc.) according to the resource amount of the communication system is performed by a maintenance person. Therefore, even when the virtualization technology is applied, there is a problem that there is no opportunity to recognize the fluctuation of the allocated resource amount, and the setting change of the configuration data is necessary through the intervention of a maintenance person. .

  Here, there is a technique described in Japanese Patent Laid-Open No. 2005-341084 for automatic setting of configuration data. However, the technology described in this publication automatically sets configuration data on a remote terminal in remote access IP (Internet Protocol) secVPN (IP security protocol Virtual Private Network), and solves the above problem. It is not possible.

  The present invention has been made to solve the above-described problems of the prior art, and its purpose is to monitor the allocation of the resource amount to each communication system by the virtualization technology, and to change the communication system when there is a change. On the other hand, by notifying the change, it is possible to change the setting of the autonomous configuration data of the communication system, and to solve the inefficiency caused by maintenance personnel. It is to provide a program and resource amount fluctuation monitoring system.

  A resource amount variation monitoring method according to claim 1 of the present invention includes a monitoring step of monitoring the hardware resource amount in a plurality of virtual systems realized by a virtualization technology using a plurality of hardware resources, A determination step for determining a change in the hardware resource amount based on a monitoring result; and a notification step for notifying the change when the hardware resource amount is determined to have changed in the determination step. And When there is a change in the amount of hardware resources, the configuration data can be rewritten at the notification destination by detecting and notifying it.

A resource amount fluctuation monitoring program according to claim 2 of the present invention provides a computer,
A monitoring step for monitoring the amount of hardware resources in a plurality of virtual systems realized by a virtualization technology using a plurality of hardware resources, and a change in the amount of hardware resources is determined based on a monitoring result of the monitoring step When determining that the amount of hardware resources has changed in the determination step and the determination step, the determination step functions as a notification step for notifying the change. When there is a change in the amount of hardware resources, the configuration data can be rewritten at the notification destination by detecting and notifying it.

  According to a third aspect of the present invention, there is provided a resource amount variation monitoring system that detects a variation in hardware resources in a plurality of virtual systems realized by a virtualization technique using a plurality of hardware resources; And notification means for notifying a change in hardware resources detected by the configuration means, wherein configuration data is rewritten at a notification destination by the notification means. When there is a change in the amount of hardware resources, the configuration data can be rewritten at the notification destination by detecting and notifying it.

The resource amount fluctuation monitoring system according to claim 4 of the present invention is the resource amount fluctuation monitoring system according to claim 3, wherein the virtual system is a communication system, and the hardware resource is an apparatus for realizing the communication system by a virtualization technology. Features. In devices such as routers and servers, a communication system can be realized by virtualization technology.
The resource amount fluctuation monitoring system according to claim 5 of the present invention is the resource amount fluctuation monitoring system according to claim 3 or claim 4, wherein the detection means compares the hardware resource amount monitoring result with a previous monitoring result, thereby obtaining the hardware amount. It is characterized by detecting changes in the amount of wear resources. By comparing with the previous monitoring result, it is possible to easily detect a change in the amount of hardware resources.

  A resource amount fluctuation monitoring system according to a sixth aspect of the present invention is the resource amount fluctuation monitoring system according to the third or fourth aspect, wherein the detection means detects the fluctuation by periodically monitoring the hardware resource quantity. And By periodically monitoring the hardware resource amount, it is possible to quickly detect a change in the hardware resource amount.

  According to the present invention, when there is a change in the amount of hardware resources, the configuration data can be rewritten at the notification destination by detecting and notifying it.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings referred to in the following description, the same parts as those in the other drawings are denoted by the same reference numerals.
(Configuration of the entire network system)
FIG. 1 is a diagram showing a configuration of the entire network system. In the figure, the network system is composed of a core network 100 and a radio access network 200. In the network system configured as described above, nodes that can be realized by the present embodiment are the server 101, the access point 201, and the mobile terminal 301 that exist in the core network 100 and the radio access network 200.

(Node configuration example)
FIG. 2 is a functional block diagram showing a configuration example of each node for configuring the present system. In this figure, this node includes an allocated resource amount monitoring unit 11 that periodically monitors the allocated resource amount, an allocated resource amount storage unit 12 that stores a monitoring result of the resource amount by the allocated resource amount monitoring unit 11, and an allocated resource. Based on the monitoring result of the resource amount by the amount monitoring unit 11, a fluctuation determining unit 13 that determines a change in the allocated resource amount, and when the fluctuation determining unit 13 determines that the allocated resource amount has changed, an application program (hereinafter referred to as an application program) , Which may be simply referred to as “application”).
The allocated resource amount monitoring unit 11 is configured to monitor the allocated resource amount to each communication system using a virtualization technique. Monitoring of the allocated resource amount by the allocated resource amount monitoring unit 11 may be performed periodically, and the period may not be constant.
The allocated resource amount storage unit 12 has a function of storing the monitoring result of the resource amount by the allocated resource amount monitoring unit 11, that is, the allocated resource amount.

  The allocation resource amount variation determination unit 13 has a function of linking the allocation resource amount variation notification unit and the allocation resource amount monitoring unit. The fluctuation determining unit 13 monitors the resource amount stored in the allocated resource amount storage unit 12 (that is, the previous measurement result) and the resource amount received as a report from the allocated resource amount monitor unit 11 (that is, the current resource amount storage unit 12). The measurement result is compared to determine the presence or absence of fluctuation. That is, as a result of the comparison, if the previous monitoring result and the current monitoring result do not match, it can be determined that the resource amount has changed. When there is a change in the resource amount, the change determination unit 13 is configured to instruct notification to the communication system node through the allocated resource amount change notification unit 14.

The allocated resource amount change notification unit 14 has an interface function with applications of a plurality of communication system nodes, operates when there is a change in the allocated resource amount, and changes the communication system node concerned. It is configured to operate as a notification interface.
In this example, the allocated resource amount storage unit 12 is provided separately from the variation determination unit 13, but a configuration in which the allocated resource amount storage unit 12 is provided inside the variation determination unit 13 may be adopted.

By preparing a plurality of nodes configured as described above and configuring a network system, it is possible to detect a change in the allocated resource amount. That is, in the above configuration, each node periodically monitors the resource amount to each application in the allocated resource amount monitoring unit 11 under the instruction of the allocated resource amount variation determining unit 13, and the result is assigned to the allocated resource amount. The amount change determination unit 13 is notified. The change determination unit 13 of the allocated resource amount that has received the notification compares the allocated resource amount to each application stored and managed in the allocated resource amount storage unit 12 with the notified resource amount, thereby determining the resource amount. It is determined whether or not there has been any fluctuation. As a result of the determination, if there is a change, the change determination unit 13 requests the allocation resource amount change notification unit 14 to notify the application of the change. Upon receiving this request, the allocated resource amount change notification unit 14 notifies the application of the change in the allocated resource amount. Each application that receives the change in the allocated resource amount performs an operation according to the notified resource amount.
Note that the operation described above is merely an example, and a trigger for monitoring the change in the allocated resource amount may not be periodically performed, but may be performed by an application or the like.

(Operation sequence)
FIG. 3 is a sequence diagram showing the processing contents of the virtualization technology 42, the allocated resource amount monitoring unit 11, the allocated resource amount variation determining unit 13, the allocated resource amount variation notifying unit 14, and the application program. In the figure, an allocation resource amount confirmation request is sent from the allocation resource amount variation determination unit 13 to the allocation resource amount monitoring unit 11 (step S101). This allocated resource amount confirmation request is further sent from the allocated resource amount monitoring unit 11 to the virtualization technology 42 (step S102).

  An allocation resource amount confirmation response, which is a response to this request, is sent from the virtualization technology 42 to the allocation resource amount monitoring unit 11 (step S103). Then, this response is further sent from the allocated resource amount monitoring unit 11 to the allocated resource amount variation determining unit 13 (step S104). The variation determination unit 13 that has received this response performs an allocation resource amount variation determination process (step S105). In the allocated resource amount variation determination process, the content of the allocated resource amount confirmation response received last time (that is, the previous monitoring result) stored in the allocated resource amount storage unit and the content of the allocated resource amount confirmation response received this time (that is, the current time) Is compared with the result of monitoring (step S106). That is, if the previous received content matches the current received content, it can be determined that there is no change in the allocated resource amount. On the other hand, if the previous received content does not match the current received content, it can be determined that there is a change in the allocated resource amount. The content of the allocated resource amount confirmation response received last time is stored in the allocated resource amount storage unit 12 and the stored content is compared with the content received this time.

As a result of the determination, if there is a change, an allocated resource amount change notification is sent from the assigned resource amount change determination unit 13 to the assigned resource amount change notification unit 14.
The processing from step S101 to step S106, that is, the allocated resource amount confirmation processing A is periodically executed. Since the allocated resource amount confirmation process is periodically executed, if there is a change in the resource amount, it can be detected at an early stage.

  The allocated resource amount change notification is sent to the running application. For example, it is sent to application APL1 and application APLx (steps S107a and S107b). Then, an allocation resource amount change notification confirmation is sent from the application APL1 and the application APLx to the allocation resource amount change notification unit 14 as a response to the change notification (steps S108a and S108b).

  Thereafter, the resource amount changing process is performed in the application APL1 and the application APLx (steps S109a and S109b). For example, when the application APL1 and the application APLx are both operating with the resource amount “10” (steps S100a and S100b), as a result of the resource amount changing process, the application APL1 operates with the resource amount “5”. The operation starts with the resource amount “15” (steps S110a and S110b).

  As described above, when there is a change in the amount of hardware resources, the configuration data file can be rewritten in the application that is the notification destination by detecting and notifying it. Thereby, since the fluctuation | variation of resource amount can be recognized, allocation of the resource amount for each application to operate | move can be changed appropriately.

(Functional arrangement)
FIG. 4 is a diagram representing the functional arrangement in each network system node in a hierarchical manner. As shown in the figure, a virtualization technology 42 is provided above the hardware resources 41, so that each application (communication system in this example) is virtually free of hardware resources. Division / allocation is performed. Here, the hardware resource 41 is, for example, a wireless or wired network, a CPU constituting a node, a memory, a disk drive, or the like.

Furthermore, the allocated resource amount fluctuation monitoring program 10 described above is configured above the virtualization technology 42. The functions of each unit shown in FIG. 2 are realized by installing the allocated resource amount fluctuation monitoring program 10 in each node constituting the system. That is, the allocated resource amount variation monitoring program 10 monitors the allocated resource amount variation, and notifies the higher-order applications APL1, APL2,... APLx (x is a natural number) as necessary. Each application APL1 to APLx operates as each communication system node according to the resource amount allocated by the virtualization technology and the resource amount reported from the allocated resource amount fluctuation monitoring program 10.
Note that the allocated resource amount fluctuation monitoring program 10 is not limited to a configuration that is independently implemented as shown in FIG. 4, and may be implemented in the virtualization technology 42 or in each application.

(Resource amount fluctuation monitoring program)
FIG. 5 is a flowchart showing the processing contents of the resource amount fluctuation monitoring program according to the present invention. In the figure, first, the allocated resource amount is measured (step S201). This corresponds to monitoring of the allocated resource amount. The resource amount is measured by reading the contents of the system property.
Next, it is determined whether the measured allocated resource amount has changed (step S202). In this case, by comparing with the previous measurement result, it can be determined whether the allocated resource amount has changed. If there is no change in the amount of resources, the process ends as it is.
When there is a change in the resource amount, the change information is notified to the node application (steps S202 → S203). Thereafter, the process ends.

  The resource amount fluctuation monitoring program described above is executed by a CPU (Central Processing Unit) provided in the node or server. In other words, the resource amount fluctuation monitoring program monitors a hardware resource amount in a plurality of virtual systems realized by a virtualization technology using a plurality of hardware resources, and a monitoring result of the monitoring step A determination step for determining a change in the amount of hardware resources based on the above, and a notification step for notifying the change when it is determined in the determination step that the amount of the hardware resource has changed. . When there is a change in the amount of hardware resources, the configuration data can be rewritten at the notification destination by detecting and notifying it.

(Resource amount fluctuation monitoring method)
When the above-described resource amount variation monitoring program is executed, the following resource amount variation monitoring method is realized. That is, a monitoring step for monitoring the amount of hardware resources in a plurality of virtual systems realized by virtualization technology using a plurality of hardware resources, and fluctuations in the amount of hardware resources based on the monitoring result of the monitoring step A resource amount fluctuation monitoring program is realized, which includes: a determination step for determining whether the hardware resource amount has changed in the determination step; and a notification step for notifying the change when the hardware resource amount is determined to have changed. . When there is a change in the amount of hardware resources, the configuration data can be rewritten at the notification destination by detecting and notifying it.

(Difference from conventional technology)
Here, the difference from the prior art will be described with reference to FIG. Here, the case of a communication system will be described.
Referring to FIG. 6A, in the prior art, when hardware resources are determined (that is, when facility design is completed), station data corresponding to the amount of hardware resources is manually input by a hardware application. (Steps S601 → S602). That is, maintenance personnel set various configuration data (that is, station data, system data, etc.) according to the resource amount of the communication system. Station data, which is an example of configuration data, is, for example, the allowable number of simultaneous connections, and this setting is performed by a maintenance person.

  For this reason, when a virtualization technique is applied, it becomes as shown in FIG. That is, when the allocated resource amount varies due to the virtualization technology (step S603), there is no opportunity to recognize the variation. For this reason, it is necessary to change the setting of the configuration data with the intervention of the maintenance person (step S604). That is, there is a problem that configuration data cannot be automatically set when the allocated resource amount fluctuates.

  On the other hand, when the present invention is applied, it becomes as shown in FIG. That is, when the allocated resource amount changes due to the virtualization technology (step S603), the changed allocated resource amount is notified to the application of the communication system node (step S605). Upon receiving this notification, the application can automatically set the configuration data or prompt the setting (step S606). In other words, since configuration data can be automatically set upon notification of a change in the amount of resources, no intervention by maintenance personnel is required, and the above problem can be solved.

(Example of virtualization technology)
When building a communication system using virtualization technology, the target hardware resources are: frequency, code, time slot for wireless, link band, optical wavelength, time slot for wired (network), CPU usage rate for node , Memory, disk, and the like. The virtualization technology for each resource is a technology for allocating target hardware resources to each communication system. For example, for wired (network), MPLS, ATM, circuit switching technology, and the like are applicable. Xen, VMware, Java (registered trademark) VM, and the like, which are representative examples of machine technology, are applicable.

  For Xen, http://en.wikipedia.org/wiki/Xen_%28%E4%BB%AE%E6%83%B3%E3%83%9E%E3%82%B7%E3%83 % B3% E3% 83% A2% E3% 83% 8B% E3% 82% BF% 29. The VMware is described in http://en.wikipedia.org/wiki/VMware. Further, Java (registered trademark) VM is described in http://en.wikipedia.org/wiki/Java_VM and the like.

  When constructing a communication system using virtualization technology, MPLS (Multi-Protocol Label Switching) or the like can be used for the network portion. The MPLS is described in http://en.wikipedia.org/wiki/Multi-Protocol_Label_Switching and the like. The ATM is described in http://en.wikipedia.org/wiki/Asynchronous_Transfer_Mode. Circuit switching technology is described in http://en.wikipedia.org/wiki/%E5%9B%9E%E7%B7%9A%E4%BA%A4%E6%8F%9B.

(Summary)
The reason for constructing a plurality of networks virtually is as follows. That is, it is inefficient to handle different types of data in one network. For example, it is inefficient to handle data that is required to have a small amount of delay for voice communication, games, etc. (real-time characteristics are important) and data that is not required to be handled by one network. For this reason, a network that requires a small amount of delay for voice communication, a game, and the like and a network that does not require it are realized separately using virtualization technology. Therefore, it is possible to construct a game-dedicated network where real-time characteristics are important.

For mobile phone networks, two generation networks can be constructed separately, such as when generations are changed (for example, generation changes from the second generation to the third generation). As the number of subscribers of old generation mobile phones decreases, the old generation network will gradually become unusable, reducing the necessary hardware resources. Therefore, when a decrease in the amount of hardware resources is detected, the configuration data can be changed on the side receiving the notification by notifying it.
As a result of introducing the virtualization technology, the allocation amount of memory, which is a hardware resource, may be reduced. According to the present invention, it is possible to detect and notify the change in the allocated amount, so that the configuration data can be changed on the side receiving the notification.

  The present invention can be used when a plurality of communication systems are provided by using a virtualization technology that artificially divides and combines hardware resources.

It is a figure which shows the structure of the whole network system. It is a functional block diagram which shows the structural example of each node for comprising the system concerning embodiment of this invention. It is a figure which shows an example of the operation | movement sequence concerning embodiment of this invention. It is the figure which expressed functional arrangement | positioning in a network system node hierarchically. It is a flowchart which shows the processing content of the resource amount fluctuation | variation monitoring program by this invention. It is a figure for demonstrating the difference with a prior art. It is a figure for demonstrating the technique which builds the network divided virtually.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Real network 2, 3 Network 10 Allocation resource amount fluctuation | variation monitoring program 11 Allocation resource amount monitoring part 12 Allocation resource amount memory | storage part 13 Fluctuation determination part 14 Allocation resource amount fluctuation | variation notification part 41 Hardware resource 42 Virtualization technology 100 Core network 101 Server 200 Wireless Access Network 201 Access Point 301 Mobile Terminal A Allocation Resource Amount Confirmation Processing APL1 to APLx Application Program

Claims (6)

  A monitoring step for monitoring the amount of hardware resources in a plurality of virtual systems realized by virtualization technology using a plurality of hardware resources, and a change in the amount of hardware resources is determined based on a monitoring result of the monitoring step And a notification step for notifying the change when it is determined in the determination step that the hardware resource amount has changed. Computer
A monitoring step for monitoring the amount of hardware resources in a plurality of virtual systems realized by a virtualization technology using a plurality of hardware resources, and a change in the amount of hardware resources is determined based on a monitoring result of the monitoring step A resource amount variation monitoring program that functions as a determination step, and a notification step that notifies the change when the hardware resource amount is determined to have changed in the determination step.   Detection means for detecting a change in the hardware resource in a plurality of virtual systems realized by virtualization technology using a plurality of hardware resources, and a notification means for notifying a change in the hardware resource detected by the detection means A resource amount fluctuation monitoring system characterized in that the configuration data is rewritten at a notification destination by the notification means.   4. The resource amount fluctuation monitoring system according to claim 3, wherein the virtual system is a communication system, and the hardware resource is a device for realizing the communication system by a virtualization technology.   5. The detection unit according to claim 3, wherein the detection unit detects a change in the hardware resource amount by comparing the monitoring result of the hardware resource amount with a previous monitoring result. Resource amount monitoring system.   The resource amount fluctuation monitoring system according to claim 3 or 4, wherein the detection means detects the fluctuation by periodically monitoring the hardware resource quantity.

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