JP4980335B2 - Communication system, communication apparatus, communication method, or program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a band of data from being limited by concentrating communication data to a specific network I/F. <P>SOLUTION: A terminal device 11B receives an identifier of application software, sent from a communication apparatus 11A, requesting communication with the communication apparatus 11A and an identifier of a network I/F that is not used for the communication apparatus 11A, selects a network I/F that is used neither for the communication apparatus 11A nor for a communication apparatus 11B, having the same identifier on the basis of the received identifier of the network I/F that is not used for the communication apparatus 11A and an identifier of the network I/F that is not used for the communication apparatus 11B, transmits the identifier of the selected network I/F to the communication apparatus 11A, and notifies application software under a passive state of the identifier. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a communication system, a communication device, a communication method, or a program.

  In recent years, due to the widespread use of large-scale academic activities (so-called e-Science) conducted on a global scale over the Internet, application software programs that require very wideband data communication (hereinafter referred to as application software as appropriate) Demand is growing.

  For a terminal device as a communication device that executes such application software and performs data communication, due to the limit of the clock frequency of a CPU (Central Processing Unit) that controls the calculation function, a single CPU is not a single CPU. A configuration in which a CPU is used and the calculation performance is improved by parallel processing by the plurality of CPUs has become mainstream.

  When performing data communication with other terminal devices, a CPU that performs calculations, a memory that stores data, and a network interface that transmits and receives data to and from other terminal devices (hereinafter referred to as a network). Data is frequently exchanged between the devices (denoted as I / F). Since components such as a CPU, a memory, and a network I / F are connected to different types of buses, data transfer between these components is an MCH (Memory Controller Hub) that handles data transfer between different buses. And ICH (I / o Controller Hub).

  However, even if the number of CPUs is increased, in a configuration in which all of the multiple CPUs use a single MCH or ICH, the performance of MCH or ICH becomes a bottleneck, and the amount of data that can be transferred per unit time between components However, the calculation performance cannot be sufficiently improved. Therefore, a configuration in which not only a CPU but also a plurality of MCHs, ICHs, memories, and network I / Fs are provided is becoming mainstream. This configuration is called a NUMA (Non-Uniform Memory Access) configuration. With this NUMA configuration, bottlenecks due to the performance of MCH and ICH can be eliminated.

  FIG. 23 is a block diagram illustrating a configuration example of a terminal device 501 having a NUMA configuration. The terminal device 501 includes four CPUs 511-1, 511-2, 511-3, and 511-4 (hereinafter simply referred to as a CPU 511 if they do not need to be individually distinguished. The same applies to other cases. ) Four memories 512-1, 512-2, 512-3, 512-4, four MCHs 513-1, 513-2, 513-3, 513-4, two ICHs 514-1, 514 Two and two network I / Fs 515-1 and 515-2 are provided.

  In this way, by providing a plurality of memories 512, MCHs 513, ICHs 514, and network I / Fs 515 in addition to the CPUs 511, not all the CPUs 511 use a single MCH 513 or ICH 514. Therefore, the MCHs 513 and ICHs 514 Bottlenecks due to performance can be eliminated.

  By using a plurality of components of the terminal device as a communication device in this way, broadband data communication can be performed. However, the band may be limited depending on how to handle these components.

  For example, as shown in FIG. 24, when the CPU 511-4 and the memory 512-2 are assigned to the application software p521 that performs data communication using the network I / F 515-1, the CPU 511-4 and the memory 512-2 are allocated. Data exchange between the network I / F 515-1 is performed via a CPU 511 other than the CPU 511-4 that executes the application software p521. For example, data transfer to the memory 512-2 is performed via the CPU 511-2, and data transfer to the network I / F 515-1 is performed via the CPU 511-1 and the CPU 511-3. As described above, if another CPU 511 is involved in the data transfer, the delay until the data transfer is completed increases. Therefore, it takes time for the data communication process, and as a result, the bandwidth of data that can be transmitted and received is increased. Limited.

  Therefore, a technique called Multi-rail has been proposed (Non-Patent Document 1). According to this method, for each application software, a set of components that reduces the delay in data transfer between the components is assigned. For example, as shown in FIG. 25, for application software p521-1, which performs data communication using a network I / F 515-1, the CPU 511-1 closest to the network I / F 515-1 and its CPU 511-1 To the nearest memory 512-1. For application software p521-2 that performs data communication using the network I / F 515-2, the CPU 511-2 closest to the network I / F 515-2 and the memory 512-2 closest to the CPU 511-2 are provided. Is assigned.

Vishwanath, V.W. Shimizu, T. Takizawa, M .; Obana, K. and Leigh, J .; “Towards Terabit / s Systems: Performance Evaluation of Multi-Rail Systems,” High-Speed Networks Workshop, 2007.

  However, the network I / F used by the application software is usually uniquely determined by the application software. When the network I / F used in this way is uniquely determined by the application software, a plurality of application software may use the same network I / F (that is, there may be a conflict), and the network I / F. Depending on the performance, the bandwidth that can be used for communication may be limited. The multi-rail method described above assigns CPUs and memories according to the network I / F uniquely determined by the application software, and eliminates the competition of the network I / F used in the application software. I can't do it.

  The present invention has been made in view of such a situation, and prevents communication data from being concentrated on a specific network I / F and restricting the data bandwidth, thereby enabling wideband data communication. It is what you want to do.

  A communication system according to one aspect of the present invention is a communication device equipped with a plurality of network interfaces, and executes an application software program that performs data communication using a predetermined network interface selected from the plurality of network interfaces In the communication system composed of the first communication device and the second communication device capable of the communication, the first communication device includes an identifier of an application software program that makes a connection request with the second communication device that is a communication partner, An identifier of a network interface that is not used in the first communication device is transmitted by the first transmission unit that transmits the identifier to the second communication device and the first transmission unit that is transmitted from the second communication device. A network interface that is not used in the first communication device A first receiving means for receiving an identifier of a predetermined network interface selected from the identifiers of the network and a connection of the identifier of the predetermined network interface received by the first receiving means with the second communication device First communication means for notifying the application software program that makes the request, and the second communication device includes an identifier of the application software program transmitted by the first transmission means of the first communication device, A second receiving means for receiving an identifier of a network interface that is not used in the first communication apparatus; and a second communication apparatus having the same identifier as the identifier of the application software program received by the second receiving means. A standby state in which the application software program can communicate The same identifier based on the identifier of the network interface not used in the first communication device received by the second receiving means and the identifier of the network interface not used in the second communication device. And a selection means for selecting a network interface that is not used in either the first communication apparatus or the second communication apparatus, and an identifier of the network interface selected by the selection means is transmitted to the first communication apparatus. And a second notification means for notifying the network interface selected by the selection means to the application software program in the standby state of the second communication device.

  The first transmission means of the first communication device uses the bandwidth usage of the network interface of the first communication device as a communication partner instead of the identifier of the network interface that is not used in the first communication device. Together with the identifier of the application software program that makes a connection request with the second communication device, the second communication device transmits the first transmission of the first communication device. Receiving the identifier of the application software program transmitted by the means and the bandwidth usage of the network interface of the first communication device, and the selecting means is the same as the identifier of the application software program received by the second receiving means Application software program of the second communication device having the identifier can communicate In the standby state, the same identifier is used based on the bandwidth usage of the network interface of the first communication device and the bandwidth usage of the network interface of the second communication device received by the second receiving means. It is possible to select a network interface having a low bandwidth usage.

  A communication device according to a first aspect of the present invention is a communication device equipped with a plurality of network interfaces, and an application software program that performs data communication using a predetermined network interface selected from the plurality of network interfaces. In the communication device that can execute the above, the identifier of the application software program that makes a communication request in the other communication device that is the communication partner and the other communication device that is the communication partner are transmitted from the other communication device that is the communication partner. A receiving unit that receives an identifier of a network interface that is not used in the communication device, and a waiting state in which an application software program of the communication device having the same identifier as the identifier of the application software program received by the receiving unit can communicate. The same identifier based on the identifier of the network interface that is not used in the other communication device that is the communication partner received by the receiving means and the identifier of the network interface that is not used in the communication device. And a communication means that selects a network interface that is not used in any of the other communication devices and communication devices that are communication partners, and another communication that is the communication interface using the identifier of the network interface selected by the selection means. It is characterized by having a transmitting means for transmitting to the apparatus, and a notifying means for notifying the network interface selected by the selecting means to the application software program in the standby state of the communication apparatus.

  The receiving means includes an identifier of an application software program that makes a communication request with another communication device that is a communication partner and is transmitted from another communication device that is a communication partner, and a network interface of the other communication device that is a communication partner And the selecting means is receiving means when the application software program of the communication apparatus having the same identifier as the identifier of the application software program received by the receiving means is in a standby state in which communication is possible. Select the network interface with the same identifier and low bandwidth usage based on the bandwidth usage of the network interface of the other communication device and the bandwidth usage of the network interface of the communication device. can do.

  A communication method according to a first aspect of the present invention is an application software program that is a communication device equipped with a plurality of network interfaces and performs data communication using a predetermined network interface selected from the plurality of network interfaces. In the communication method of the communication device capable of executing the above, the identifier of the application software program that is transmitted from the other communication device that is the communication partner and makes a communication request in the other communication device that is the communication partner, and the communication partner A receiving step for receiving an identifier of a network interface that is not used in another communication device, and an application software program for the communication device having the same identifier as the identifier of the application software program received in the receiving step. If it is in a standby state where communication is possible, it is based on the identifier of the network interface that is not used in the other communication device that is the communication partner received in the reception step, and the identifier of the network interface that is not used in the communication device. A selection step of selecting a network interface that has the same identifier and is not used in any of the other communication devices and communication devices that are communication partners, and the identifier of the network interface selected in the selection step is the communication partner A transmission step of transmitting to another communication device; and a notification step of notifying an application software program in a standby state of the communication device of the network interface selected in the selection step.

  A program according to a first aspect of the present invention causes a computer to execute communication processing by an application software program that performs data communication using a predetermined network interface selected from a plurality of network interfaces mounted on a communication device. A program that is transmitted from another communication device that is a communication partner and that is used in another communication device that is a communication partner and an identifier of an application software program that makes a communication request with the other communication device that is a communication partner A receiving step for receiving an identifier of a network interface that has not been made, and a standby state in which an application software program of a communication device having the same identifier as the identifier of the application software program received in the receiving step can communicate The same identifier based on the identifier of the network interface that is not used in the other communication device that is the communication partner received in the reception step and the identifier of the network interface that is not used in the communication device. A selection step of selecting a network interface that is not used in any of the other communication devices and communication devices that are communication partners, and the identifier of the network interface selected in the selection step to other communication devices that are communication partners A computer is caused to execute communication processing including a transmission step of transmitting, and a notification step of notifying an application software program in a standby state of the communication device of the network interface selected in the selection step.

  In the communication device, communication method, or program according to the first aspect of the present invention, an application software program is transmitted from another communication device that is a communication partner and makes a communication request with the other communication device that is a communication partner. And an identifier of a network interface that is not used by another communication device as a communication partner is received, and an application software program of a communication device having the same identifier as the identifier of the received application software program can communicate In the standby state, the communication partner has the same identifier based on the identifier of the network interface that is not used in the other communication device that is the communication partner and the identifier of the network interface that is not used in the communication device. Become A network interface that is not used in any of the communication device and the communication device is selected, the identifier of the selected network interface is transmitted to another communication device that is a communication partner, and the selected network interface is connected to the communication device. The application software program in the standby state is notified.

  A communication device according to a second aspect of the present invention is a communication device equipped with a plurality of network interfaces, and an application software program that performs data communication using a predetermined network interface selected from the plurality of network interfaces. The communication device is an identifier of an application software program that makes a connection request with another communication device that is a communication partner, and an identifier of a network interface that is not used in the communication device. A transmission unit that transmits to another communication device and a predetermined interface selected from identifiers of network interfaces that are transmitted from another communication device that is a communication partner and that are not used in the communication device transmitted by the transmission unit Network interface Receiving means for receiving the identifier, and communication means for notifying the identifier of the predetermined network interface received by the receiving means to an application software program that makes a connection request with another communication device as a communication partner. Features.

  The transmission means transmits an identifier of an application software program that makes a connection request with another communication device that is a communication partner, and a bandwidth usage amount of a network interface of the communication device.

  The communication method according to the second aspect of the present invention is an application software program that is a communication device equipped with a plurality of network interfaces and performs data communication using a predetermined network interface selected from the plurality of network interfaces. The communication method of the communication device that can execute the communication, the identifier of the application software program that requests connection with the other communication device that is the communication partner, and the identifier of the network interface that is not used in the communication device It is selected from the identifier of the network interface not used in the communication step transmitted from the transmission step transmitted to the other communication device to be the other party and the communication device transmitted from the other transmission device to be the other party. Predetermined network A reception step of receiving an interface identifier, and a communication step of notifying an identifier of the predetermined network interface received in the reception step to an application software program that makes a connection request with another communication device serving as a communication partner. It is characterized by that.

  A program according to a second aspect of the present invention causes a computer to execute communication processing by an application software program that performs data communication using a predetermined network interface selected from a plurality of network interfaces mounted on a communication device. An identifier of an application software program that requests connection with another communication device that is a communication partner and an identifier of a network interface that is not used in the communication device are transmitted to the other communication device that is the communication partner. Identification of a predetermined network interface selected from identifiers of network interfaces not used in the communication device transmitted in the transmission step and transmitted from another communication device serving as a communication partner A communication process comprising: a receiving step for receiving the communication information; and a communication step for notifying an identifier of the predetermined network interface received in the receiving step to an application software program that makes a connection request with another communication device serving as a communication partner. The computer is executed.

  In the communication apparatus, communication method, or program according to the second aspect of the present invention, an identifier of an application software program that makes a connection request with another communication apparatus that is a communication partner, and a network interface that is not used in the communication apparatus The identifier of the network interface is selected from the identifiers of the network interfaces that are transmitted to the other communication device that is the communication partner and are transmitted from the other communication device that is the communication partner and are not used in the transmitted communication device. An identifier of a predetermined network interface is received, and the received identifier of the predetermined network interface is notified to an application software program that makes a connection request with another communication apparatus that is a communication partner.

  According to the present invention, it is possible to prevent a data band from being limited and to perform broadband data communication.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a diagram showing a configuration example of a communication system to which the present invention is applied. In this communication system, the terminal device 11 </ b> A and the terminal device 11 </ b> B are communication devices that perform data communication via the network 12. The terminal device 11A and the terminal device 11B also have a NUMA configuration including a plurality of CPUs, memories, MCHs, ICHs, and network I / Fs.

  A plurality of application software for data communication is installed in each of the terminal device 11A and the terminal device 11B, and components used in the application software are determined for each application software by a multi-rail method. Allocated according to the network I / F used. As will be described later, the network I / F used by the application software is determined so as not to compete by a plurality of application software.

  The network 12 includes a relay device 13. Here, the relay device 13 is, for example, an optical switch, an Ethernet (registered trademark) switch, an IP router, or the like. Although one relay device 13 is shown in FIG. 1, the network 12 can be configured by two or more relay devices 13. Note that the two terminal devices 11A and 11B can be directly connected without using the relay device 13.

  FIG. 2 is a block diagram illustrating a hardware configuration example of the terminal device 11A. The terminal device 11A includes four CPUs 21-1A, 21-2A, 21-3A, and 21-4A (hereinafter referred to as CPU 21A when there is no need to distinguish them individually, and the same applies in other cases). 4 memories 22-1A, 22-2A, 22-3A, 22-4A, 4 MCHs 23-1A, 23-2A, 23-3A, 23-4A, 2 ICH 24-1A, 24-2A, And three network I / Fs 25-1A, 25-2A, and 25-3A are provided.

  FIG. 3 is a block diagram illustrating a hardware configuration example of the terminal device 11B. Similarly to the terminal device 11A, the terminal device 11B has four CPUs 21-1B, 21-2B, 21-3B, and 21-4B (hereinafter, referred to as CPU 21B when it is not necessary to distinguish them individually. In other cases). This also applies to the four memories 22-1B, 22-2B, 22-3B, 22-4B, four MCHs 23-1B, 23-2B, 23-3B, 23-4B, and two ICHs 24-. 1B, 24-2B, and three network I / Fs 25-1B, 25-2B, 25-3B are provided.

  FIG. 4 is a diagram illustrating a functional configuration example of the terminal devices 11A and 11B for executing the communication process.

  The communication function unit 51-1A of the terminal device 11A and the communication function unit 51-1B of the terminal device 11B are functions realized by executing application software p51-1A and p51-1B having the same application ID. Thus, data communication is performed via the network 12. Here, the application ID is information for identifying application software, and numbers, character strings, and the like are used. Here, the application IDs of the application softwares p51-1A and p51-1B are “51-1”.

  The communication function unit 51-2A of the terminal device 11A and the communication function unit 51-2B of the terminal device 11B are realized by executing application software p51-2A and p51-2B having the same application ID “51-2”. And performs data communication via the network 12. Further, the communication function unit 51-3A of the terminal device 11A and the communication function unit 51-3B of the terminal device 11B execute application software p51-3A and p51-3B having the same application ID (“51-3”). This is a function realized by this, and performs data communication via the network 12.

  Communication between the communication function unit 51A of the terminal device 11A and the communication function unit 51B of the terminal device 11B is executed via the corresponding network I / Fs 25A and 25B. That is, for example, data output from a network I / F 25A with the terminal device 11A is delivered via the network 12 to the corresponding network I / F 25B in the terminal device 11B.

  In this example, the network I / F 25-1A of the terminal device 11A and the network I / F 25-1B of the terminal device 11B, the network I / F 25-2A of the terminal device 11A and the network I / F 25-2B of the terminal device 11B, and the terminal The network I / F 25-3A of the device 11A and the network I / F 25-3B of the terminal device 11B correspond to each other, and each has the same identifier.

  Since data output from a certain network I / F 25A is delivered via the network 12 to the corresponding network I / F 25B at the communication partner, the input / output signals for each network I / F 25A, 25B can be identified. It has become a thing. For example, in the case of optical communication, a different wavelength is used for each of the network I / Fs 25A and 25B, a different VLAN-ID is used when Ethernet (registered trademark) is used, and a different IP network address is used when communicating by IP. It can be identified by using it. Information for identifying the wavelength, VLAN-ID, IP network address, and the like here is an identifier of the network I / F 25A, 25B.

  In the above, the network I / F 25-1A and the network I / F 25-1B, the network I / F 25-2A, the network I / F 25-2B, and the network I / F 25 having the same identifier in the terminal device 11A and the terminal device 11B. −3A and network I / F 25-3B are referred to as a network I / F 25-1, a network I / F 25-2, and a network I / F 25-3 when it is not necessary to distinguish them individually. The network I / F 25-1, the network I / F 25-2, and the network I / F 25-3 are referred to as a network I / F 25 when it is not necessary to distinguish them individually.

  The resource management function unit 52A of the terminal device 11A is a function realized by executing a predetermined application software program. The resource management function unit 52B of the terminal device 11B is a function realized by executing a predetermined application software program. As will be described later, the resource management function unit 52A of the terminal device 11A and the resource management function unit 52B of the terminal device 11B exchange control information with each other, and based on the control information, the communication function unit 51A or the communication function unit 51B. The network I / F 25A or the network I / F 25B used in the above is selected.

  In this example, the network I / F 25-1A of the terminal device 11A and the network I / F 25-1B of the terminal device 11B are between the resource management function unit 52A of the terminal device 11A and the resource management function unit 52B of the terminal device 11B. It is assumed that it is assigned exclusively for transmission / reception of control information. The network I / Fs 25-2A and 25-3A of the terminal device 11A and the network I / Fs 25-2B and 25-3B of the terminal device 11B are used for data communication by the communication function unit 51A or the communication function unit 51B. . The use form of the network I / Fs 25A and 25B is an example. For example, the communication function unit 51 may use the network I / F 25-1 that is used exclusively for transmission / reception of control information. it can.

  FIG. 5 is a sequence diagram illustrating an example of data communication between the terminal device 11A and the terminal device 11B. In this sequence diagram, communication between the communication function unit 51-1A of the terminal device 11A and the communication function unit 51-1B of the terminal device 11B starts from a state in which no data communication is performed in the terminal device 11A and the terminal device 11B. The procedure when it is done is shown.

  First, in the terminal device 11A, the application software p51-1A is activated and the communication function unit 51-1A can be operated (that is, communication by the application software p51-1A is enabled). Then, the application software p51-1B is activated and the communication function unit 51-1B becomes operable (that is, the communication by the application software p51-1B is enabled).

  The communication function unit 51-1B of the terminal device 11B that has become operable transmits the application ID “51-1” of the application software p51-1B to the resource management function unit 52B, and becomes a communication partner terminal A standby request for connection from the device 11A is made (S101). The resource management function unit 52B stores the application ID “51-1” in the application ID list.

  On the other hand, the communication function unit 51-1A of the terminal device 11A that has become operable transmits its own application ID “51-1” to the resource management function unit 52A to make a connection request to the terminal device 11B ( S102).

  When a connection request is made by the communication function unit 51-1A (S102), the resource management function unit 52A lists the application ID “51-1” and the identifier of the network I / F 25A that is not currently used by the terminal device 11A. (Hereinafter referred to as an unused list) is transmitted to the resource management function unit 52B via the network I / F 25-1A dedicated to control information and the network I / F 25-1B of the terminal device 11B, and a connection request is made (S103). ).

  FIG. 6 is a diagram illustrating a communication state in this case between the terminal device 11A and the terminal device 11B. Thus, in this case, since the terminal device 11A uses only the network I / F 25-1A, the unused list includes the identifiers of the network I / Fs 25-2A and 25-3A.

  When a connection request is made by the resource management function unit 52A of the terminal device 11A (S103), the resource management function unit 52B of the terminal device 11B first stores the application ID “51-1” included in the connection request. The communication function unit 51-1B of the application ID “51-1” is in a standby state (that is, communication by the application software p51-1B is performed). To see if it ’s possible). In this case, since the resource management function unit 52B of the terminal device 11B stores the application ID “51-1” as described above, the communication function unit 51-1B with the application ID “51-1” is in a standby state. (That is, it is confirmed that communication by the application software p51-1B is possible).

  Next, the resource management function unit 52B of the terminal device 11B is a network that is not used in the terminal device 11A indicated in the unused list included in the connection request (S103) from the resource management function unit 52A of the terminal device 11A. The identifier of the I / F 25A is compared with the identifier of the network I / F 25B that is not used in the terminal device 11B, and the network I / F 25A that has the same identifier and is unused in both the terminal devices 11A and 11B One set of 25B is selected. In this case, as shown in FIG. 6, the network I / Fs 25-2A and 25-2B and the network I / Fs 25-3A and 25-3B have the same identifier, and the terminal devices 11A and 11B Is also an unused network I / F 25. Here, it is assumed that a set of network I / Fs 25-2A and 25-2B is selected from them.

  The resource management function unit 52B of the terminal device 11B uses the identifiers of the selected network I / Fs 25-2A and 25-2B via the network I / F 25-1B and the network I / F 25-1A of the terminal device 11A. This is notified to the unit 52A (S104).

  Upon receiving the identifiers of the network I / Fs 25-2A and 25-2B from the source management function unit 52B of the terminal device 11B, the resource management function unit 52A of the terminal device 11A sends the connection request to the communication function unit 51-1A. On the other hand, the identifier of the network I / F 25-2A to be used is notified (S105). On the other hand, the resource management function unit 52B of the terminal device 11B also notifies the communication function unit 51-1B that has made a standby request after notifying the identifiers of the selected network I / Fs 25-2A and 25-2B. The identifier of F25-2B is notified (S106).

  When the network I / F 25-2A and 25-2B to be used are notified to the communication function unit 51-1A of the terminal device 11A and the communication function unit 51-1B of the terminal device 11B in this way, the above-described multi-rail is used. By this method, the communication function units 51-1A and 51-1B are assigned a set of components (for example, the CPU 21 and the memory 22) that reduce the data transfer delay.

  When the components are assigned in this way, the communication function units 51-1A and 51-1B operate in cooperation with the assigned components, and use the designated network I / Fs 25-2A and 25-2B. Communication.

  FIG. 7 is a diagram illustrating a communication state between the terminal device 11A and the terminal device 11B after the processing illustrated in the sequence diagram of FIG. As described above, the communication function unit 51-1A and the communication function unit 51-1B communicate with each other via the network I / Fs 25-2A and 25-2B by the processing shown in the sequence diagram of FIG.

  FIG. 8 is a sequence diagram illustrating another example of data communication between the terminal device 11A and the terminal device 11B. In this sequence diagram, the communication function via the network I / F 25-2A of the terminal device 11A and the network I / F 25-2B of the terminal device 11B as shown in FIG. The procedure in the case where communication between the communication function units 51-2A and 51-2B is newly started in a state where the communication between the unit 51-1A and the communication function unit 51-1B is performed is shown.

  First, in the terminal device 11A, the application software p51-2A is activated and the communication function unit 51-2A is operable (that is, the communication by the application software p51-2A is enabled). In the terminal device 11B, Then, the application software p51-2B is activated and the communication function unit 51-2B can be operated (that is, communication by the application software p51-2B is enabled).

  The communication function unit 51-2B of the terminal device 11B that has become operable transmits the application ID “51-2” of the application software p51-2B to the resource management function unit 52B, and becomes a communication partner terminal A standby request for connection from the apparatus 11A is made (S201). The resource management function unit 52B stores the application ID “51-2” in the application ID list.

  On the other hand, the communication function unit 51-2A of the terminal device 11A that has become operable transmits its own application ID “51-2” to the resource management function unit 52A to make a connection request to the terminal device 11B ( S202).

  When a connection request is made by the communication function unit 51-2A (S202), the resource management function unit 52A displays the application ID “51-2” and the unused list of the terminal device 11A with the network I / F 25- dedicated to control information. 1A and the terminal device 11B transmit to the resource management function unit 52B via the network I / F 25-1B to make a connection request (S203). In this case, since the terminal device 11A uses the network I / F 25-1A in addition to the network I / F 25-1A (FIG. 7), the identifier of the network I / F 25-3A is included in the unused list. included.

  When a connection request is made by the resource management function unit 52A of the terminal device 11A (S203), the resource management function unit 52B of the terminal device 11B first stores the application ID “51-2” included in the connection request. The communication function unit 51-2B of the application ID “51-2” is in a standby state (that is, communication by the application software p51-2B is performed). To see if it ’s possible). In this case, as described above, since the resource management function unit 52B of the terminal device 11B stores the application ID “51-2”, the communication function unit 51-2B with the application ID “51-2” is in a standby state. (That is, it is confirmed that communication by the application software p51-2B is possible).

  Next, the resource management function unit 52B of the terminal device 11B is a network that is not used in the terminal device 11A indicated in the unused list included in the connection request (S203) from the resource management function unit 52A of the terminal device 11A. The identifier of the I / F 25A is compared with the identifier of the network I / F 25B that is not used in the terminal device 11B, and the network I / F 25A that has the same identifier and is unused in both the terminal devices 11A and 11B One set of 25B is selected. In this case, as shown in FIG. 7, the network I / Fs 25-3A and 25-3B have the same identifier, and are unused in both the terminal devices 11A and 11B. Therefore, a set of network I / Fs 25-3A and 25-3B is selected.

  The resource management function unit 52B of the terminal device 11B uses the identifiers of the selected network I / Fs 25-3A and 25-3B via the network I / F 25-1B and the network I / F 25-1A of the terminal device 11A. The unit 52A is notified (S204).

  Upon receiving the identifiers of the network I / Fs 25-3A and 25-3B from the resource management function unit 52B of the terminal device 11B, the resource management function unit 52A of the terminal device 11A sends the communication function unit 51-2A that has made the connection request. On the other hand, the identifier of the network I / F 25-3A to be used is notified (S205). On the other hand, the resource management function unit 52B of the terminal device 11B also notifies the communication function unit 51-2B that has made a standby request after notifying the identifiers of the selected network I / Fs 25-3A and 25-3B. The identifier of F25-3B is notified (S206).

  When the network I / Fs 25-3A and 25-3B to be used are notified to the communication function unit 51-2A of the terminal device 11A and the communication function unit 51-2B of the terminal device 11B in this way, the above-described multi-rail is used. With this technique, the communication function units 51-2A and 51-2B are assigned a set of components (for example, the CPU 21 and the memory 22) that reduce the data transfer delay.

  When the components are assigned in this way, the communication function units 51-2A and 51-2B operate in cooperation with the assigned components and use the designated network I / Fs 25-3A and 25-3B. Communication.

  FIG. 9 is a diagram illustrating a communication state between the terminal device 11A and the terminal device 11B after the processing illustrated in the sequence diagram of FIG. Thus, by the processing shown in the sequence diagram of FIG. 8, communication between the communication function units 51-1A and 51-1B via the network I / Fs 25-2A and 25-2B, and the network I / F 25-3A Communication between the communication function unit 51-2A and the communication function unit 51-2B via the communication unit 25-3B is performed.

As described above, the terminal device 11A is not used in the terminal device 11A and the application ID “51-2” as the identifier of the application software p51-2A that makes a connection request with the terminal device 11B that is the communication partner. The identifier of the network I / F 25-3A is transmitted to the communication device 11B (S203),
When the terminal device 11B can communicate with the application software p51-2B of the terminal device 11B having the same application ID as the application ID (“51-2) transmitted from the terminal device 11A (S201). Based on the identifier of the network I / F 25-3A that is not used in the terminal device 11A transmitted from the terminal device 11A and the identifier of the network I / F 25-3B that is not used in the terminal device 11B, the same identifier is obtained. Network I / F 25-3A and 25-3B that are not used in any of the terminal devices 11A and 11B,
In the terminal device 11A and the terminal device 11B, the selected network I / F 25-3A or 25-3B is notified to the communication function unit 51-2A by the application software p51-2A that has made the connection request and can communicate. Since the communication function unit 51-2B by the application software p51-2B in the state is notified,
The network I / Fs 25-3A and 25-3B are different from the network I / Fs 25-2A and 25-2B used for the communication between the communication function unit 51-1A and the communication function unit 51-1B. The communication function unit 51-2A and the communication function unit 51-2B can be communicated with each other. As a result, it is possible to prevent a decrease in usable bandwidth due to competition of the network I / F 25.

  FIG. 10 is a sequence diagram illustrating another example of data communication between the terminal device 11A and the terminal device 11B. In this sequence diagram, the communication function unit 51-1A and the communication function unit 51-1B via the network I / Fs 25-2A and 25-2B as shown in FIG. 9 are obtained by the processing shown in the sequence diagram of FIG. Communication function units 51-3A and 51- in a state where communication is performed between the communication function unit 51-2A and the communication function unit 51-2B via the network I / Fs 25-3A and 25-3B. A procedure when 3B communication is newly started is shown.

  First, in the terminal device 11A, the application software p51-3A is activated and the communication function unit 51-3A is operable (that is, the communication by the application software p51-3A is enabled). Then, the application software p51-3B is activated and the communication function unit 51-3B becomes operable (that is, communication with the application software p51-3B is possible).

  The communication function unit 51-3B of the terminal device 11B that has become operable transmits the application ID (“51-3”) of the application software p51-3B to the resource management function unit 52B, and communicates with the communication partner. A standby request for a connection from the terminal device 11A is made (S301). The resource management function unit 52B stores the application ID “51-3” in the application ID list.

  On the other hand, the communication function unit 51-3A of the terminal device 11A that has become operable transmits its own application ID “51-3” to the resource management function unit 52A to make a connection request to the terminal device 11B ( S302).

  When a connection request is made by the communication function unit 51-3A (S302), the resource management function unit 52A displays the application ID “51-3” and a list of bandwidth usage of each network I / F 25A of the terminal device 11A (hereinafter referred to as “the ID”). (Referred to as a band usage list) is transmitted to the resource management function unit 52B via the network I / F 25-1A dedicated to control information and the network I / F 25-1B of the terminal device 11B to make a connection request ( S303). Here, the bandwidth usage of the network I / F 25A can be acquired by actually measuring the terminal device 11A or by making an inquiry to each communication function unit 51A or the relay device 13 in the network 12.

  When a connection request is made by the resource management function unit 52A of the terminal device 11A (S303), the resource management function unit 52B of the terminal device 11B first stores the application ID “51-3” included in the connection request. The communication function unit 51-3B of the application ID “51-3” is in a standby state (that is, communication by the application software p51-3B is performed). To see if it ’s possible). In this case, since the resource management function unit 52B of the terminal device 11B stores the application ID “51-3” as described above, the communication function unit 51-3B with the application ID “51-3” is in a standby state. (That is, it is confirmed that communication by the application software p51-3B is possible).

  Next, the resource management function unit 52B of the terminal device 11B is used in the terminal device 11A indicated in the bandwidth usage list included in the connection request (S303) from the resource management function unit 52A of the terminal device 11A. The bandwidth usage of each network I / F 25A is compared with the bandwidth usage of each network I / F 25B used in the terminal device 11B, and the network I / F 25A and 25B having the same identifier and having a small bandwidth usage. Select one set. For example, for each set of network I / Fs 25A and 25B having the same identifier, the one with the smallest sum of bandwidth usage is selected. Here, it is assumed that a set of network I / Fs 25-3A and 25-3B is selected. The bandwidth usage of the network I / F 25B of the terminal device 11B is obtained by actually measuring the terminal device 11B or inquiring each communication function unit 51B or the relay device 13 in the network 12. Can do.

  The resource management function unit 52B of the terminal device 11B uses the identifiers of the selected network I / Fs 25-3A and 25-3B via the network I / F 25-1B and the network I / F 25-1A of the terminal device 11A. This is notified to the unit 52A (S304).

  Upon receiving the identifiers of the network I / Fs 25-3A and 25-3B from the source management function unit 52B of the terminal device 11B, the resource management function unit 52A of the terminal device 11A sends the connection function request to the communication function unit 51-3A. On the other hand, the identifier of the network I / F 25-3A to be used is notified (S305). On the other hand, the resource management function unit 52B of the terminal apparatus 11B also notifies the communication function unit 51-3B that has made a standby request after notifying the identifiers of the selected network I / Fs 25-3A and 25-3B. The identifier of F25-3B is notified (S306).

  When the network I / Fs 25-3A and 25-3B to be used are notified to the communication function unit 51-3A of the terminal device 11A and the communication function unit 51-3B of the terminal device 11B in this way, the above-described multi-rail is used. By this method, a set of components (for example, the CPU 21 and the memory 22) that reduces the data transfer delay is assigned to the communication function units 51-3A and 51-3B.

  When the components are assigned in this way, the communication function units 51-3A and 51-3B operate in cooperation with the assigned components, and use the designated network I / Fs 25-3A and 25-3B. Communication.

  FIG. 11 is a diagram illustrating a communication state between the terminal device 11A and the terminal device 11B after the processing illustrated in the sequence diagram of FIG. Thus, by the processing shown in the sequence diagram of FIG. 10, communication between the communication function unit 51-1A and the communication function unit 51-1B via the network I / Fs 25-2A and 25-2B, and the network I / F 25-3A and Communication between communication function unit 51-2A and communication function unit 51-2B via 25-3B, and communication function unit 51-3A and communication function unit 51-3B via network I / F 25-3A and 25-3B Communication is started.

As described above, the terminal device 11A is used in the terminal device 11A and the application ID (“51-3”) as the identifier of the application software p51-3A that makes a connection request with the terminal device 11B that is the communication partner. The bandwidth usage of each network I / F 25A is transmitted to the communication device 11B (S303),
When the terminal device 11B can communicate with the application software p51-3B of the terminal device 11B having the same application ID as the application ID ("51-3) transmitted from the terminal device 11A (S301). Based on the bandwidth usage of each network I / F 25A used in the terminal device 11A transmitted from the terminal device 11A and the bandwidth usage of each network I / F 25B used in the terminal device 11B, Select the network I / F 25-3A, 25-3B having the same identifier and the least bandwidth usage,
In the terminal device 11A and the terminal device 11B, the selected network I / F 25-3A or 25-3B is notified to the communication function unit 51-3A by the application software p51-3A that has made the connection request and can communicate. Since the communication function unit 51-3B by the application software p51-3B in the state is notified,
Communication between the communication function unit 51-3A and the communication function unit 51-3B is performed using the network I / Fs 25-3A and 25-3B having the smallest bandwidth among the used network I / Fs 25. be able to. As a result, communication data concentration on a specific network I / F 25 can be prevented, and broadband data communication can be realized.

  FIG. 12 is a diagram showing another configuration example of the communication system to which the present invention is applied. In this communication system, a terminal device 11C is further provided in the communication system of FIG. Since this terminal device 11C has a NUMA configuration like the terminal device 11A and the terminal device 11B, illustration and detailed description thereof are omitted, but four CPUs, four memories, An MCH, two ICHs (both not shown), and three network I / Fs 25-1C, 25-2C, and 25-3C are provided.

  The terminal device 11C is also installed with application software p51-2C for data communication. The components used by the application software p51-2C are connected to the network I / F 25C used by the multi-rail method. Assigned accordingly. The network I / F 25C used by the application software p51-2C is determined as described later.

  In the terminal device 11C, the communication function unit 51-2C is a function realized by executing the application software p51-2C, and has the same application ID “51” of the terminal device 11A connected to the network 12. Data communication with the application software p51-2A having -2 ".

  Note that the application software p51-2B having the application ID “51-2” provided in the terminal device 11B shown in FIG. 4 is deleted from the terminal device 11B in FIG.

  The network I / F 25-1C corresponds to the network I / F 25-1A of the terminal device 11A and the network I / F 25-1B of the terminal device 11B, and has the same identifiers. The network I / F 25-2C corresponds to the network I / F 25-2A of the terminal device 11A and the network I / F 25-2B of the terminal device 11B, and has the same identifier as those. The network I / F 25-3C corresponds to the network I / F 25-3A of the terminal device 11A and the network I / F 25-3B of the terminal device 11B, and has the same identifier.

  The resource management function unit 52C of the terminal device 11C exchanges control information with the resource management function unit 52A of the terminal device 11A or the source function management unit 52B of the terminal device 11B, and based on the control information, the network I / O Manage the use of F25C.

  In the case of this example, the network I / F 25-1C of the terminal device 11C, together with the network I / F 25-1A of the terminal device 11A and the network I / F 25-1B of the terminal device 11B, is a resource management function unit 52A of the terminal device 11A. Alternatively, it is assumed that it is assigned exclusively for transmission / reception of control information between the resource management function units 52B of the terminal device 11B. The other network I / Fs 25-2C and 25-3C of the terminal device 11C are used for data communication by the communication function unit 51-2C. The use form of the network I / F 25C is merely an example, and the communication function unit 51-2C can use the network I / F 25-1 that is used exclusively for control information, for example.

  FIG. 13 is a sequence diagram illustrating an example of data communication between terminal device 11A and terminal device 11B in FIG. In this sequence diagram, communication is performed between the communication function unit 51-1A of the terminal device 11A and the terminal device 11B from a state in which no data communication is performed among any of the terminal device 11A, the terminal device 11B, and the terminal device 11C. A procedure when communication with the functional unit 51-1B is started is shown.

Since this procedure is the same as that shown in the sequence diagram of FIG. 5, detailed description thereof is omitted, but application software in which the terminal device 11A makes a connection request with the terminal device 11B serving as a communication partner. The application ID “51-1” as the identifier of p51-1A and the identifiers of the network I / Fs 25-2A and 25-3A (FIG. 14) that are not used in the terminal device 11A are transmitted to the communication device 11B (S403). ),
When the terminal device 11B can communicate with the application software p51-1B of the terminal device 11B having the same application ID as the application ID ("51-1) transmitted from the terminal device 11A (S401). The identifiers of the network I / Fs 25-2A and 25-3A that are not used in the terminal device 11A transmitted from the terminal device 11A, and the network I / Fs 25-2B and 25-3B that are not used in the terminal device 11B Based on the identifier, for example, select the network I / F 25-2A, 25-2B that has the same identifier and is not used in any of the terminal devices 11A and 11B,
In the terminal device 11A and the terminal device 11B, the selected network I / F 25-2A, 25-2B is notified to the communication function unit 51-1A by the application software p51-1A that has made the connection request, and can communicate. Since the communication function unit 51-1B by the application software p51-1B in the state is notified, the communication function unit 51-1A and the communication function unit 51- are used using the network I / Fs 25-2A and 25-2B. Communication with 1B is started (FIG. 15).

  FIG. 16 is a sequence diagram illustrating an example of data communication between terminal device 11A and terminal device 11C in FIG. In this sequence diagram, the communication function unit 51- via the network I / F 25-2A of the terminal device 11A and 25-2B of the terminal device 11B as shown in FIG. 15 is obtained by the processing shown in the sequence diagram of FIG. When communication between 1A and communication function unit 51-1B is performed, communication between communication function unit 51-2A of terminal device 11A and communication function unit 51-2C of terminal device 11C is newly started. The procedure is shown.

  First, in the terminal device 11A, the application software p51-2A is activated and the communication function unit 51-2A can be operated (that is, communication by the application software p51-2A is possible). Then, the application software p51-2C is activated and the communication function unit 51-2C becomes operable (that is, communication with the application software p51-2C becomes possible).

  The communication function unit 51-2C of the terminal device 11C that has become operable transmits the application ID “51-2” of the application software p51-2C to the resource management function unit 52C, and becomes a communication partner terminal A standby request for connection from the apparatus 11A is made (S501). The resource management function unit 52C stores the application ID “51-2” in the application ID list.

  On the other hand, the communication function unit 51-2A of the terminal device 11A that has become operable transmits its own application ID “51-2” to the resource management function unit 52A to make a connection request to the terminal device 11C ( S502).

  When a connection request is made by the communication function unit 51-2A (S502), the resource management function unit 52A displays the application ID “51-2” and the unused list of the terminal device 11A in the network I / F 25- dedicated to control information. 1A and the network I / F 25-1C of the terminal device 11C are transmitted to the resource management function unit 52C to make a connection request (S503). In this case, since the terminal device 11A uses the network I / F 25-1A in addition to the network I / F 25-1A (FIG. 15), the identifier of the network I / F 25-3A is included in the unused list. included.

  When a connection request is made by the resource management function unit 52A of the terminal device 11A (S503), the resource management function unit 52C of the terminal device 11C first stores the application ID “51-2” included in the connection request. The communication function unit 51-2C of the application ID “51-2” is in a standby state (that is, communication by the application software p51-2C is performed). To see if it ’s possible). In this case, since the resource management function unit 52C of the terminal device 11C stores the application ID “51-2” as described above, the communication function unit 51-2C of the application ID “51-2” is in a standby state. (That is, it is confirmed that communication by the application software p51-2C is possible).

  Next, the resource management function unit 52C of the terminal device 11C has a network that is not used in the terminal device 11A indicated in the unused list included in the connection request (S503) from the resource management function unit 52A of the terminal device 11A. The identifier of the I / F 25A is compared with the identifier of the network I / F 25C that is not used in the terminal device 11C, and the network I / F 25A that has the same identifier and is unused in both the terminal devices 11A and 11C One set of 25C is selected. In this case, as shown in FIG. 15, the network I / Fs 25-3A and 25-3C have the same identifier, and are unused in both the terminal devices 11A and 11C. Therefore, a set of network I / Fs 25-3A and 25-3C is selected.

  The resource management function unit 52C of the terminal device 11C receives the identifiers of the selected network I / F 25-3A and 25-3C via the network I / F 25-1C and the network I / F 25-1A of the terminal device 11A. The unit 52A is notified (S504).

  Upon receiving the identifiers of the network I / Fs 25-3A and 25-3C from the resource management function unit 52C of the terminal device 11C, the resource management function unit 52A of the terminal device 11A sends the communication function unit 51-2A that has made the connection request. On the other hand, the identifier of the network I / F 25-3A to be used is notified (S505). On the other hand, the resource management function unit 52C of the terminal device 11C also notifies the communication function unit 51-2C that has made a standby request after notifying the identifiers of the selected network I / Fs 25-3A and 25-3C. The identifier of F25-3C is notified (S506).

  When the network I / F 25-3A and 25-3C to be used are notified to the communication function unit 51-2A of the terminal device 11A and the communication function unit 51-2C of the terminal device 11C in this way, the above-described multi-rail is used. With this technique, the communication function units 51-2A and 51-2C are assigned a set of components (for example, the CPU 21 and the memory 22) that reduce the data transfer delay.

  When the components are assigned in this way, the communication function units 51-2A and 51-2C operate in cooperation with the assigned components and use the designated network I / Fs 25-3A and 25-3C. Communication.

  FIG. 17 is a diagram illustrating a communication state between the terminal devices 11A, 11B, and 11C after the processing illustrated in the sequence diagram of FIG. As described above, by the processing shown in the sequence diagram of FIG. 16, communication between the communication function units 51-1A and 51-1B via the network I / Fs 25-2A and 25-2B and the network I / F 25-3A are performed. Communication between the communication function unit 51-2A and the communication function unit 51-2C through the communication unit 25-3C is performed.

  As described above, in the terminal device 11A, the network I / F 25-3A different from the network I / F 25-2A used for the communication with the terminal device 11B already performed is used as a new communication partner. Communication with the terminal device 11C can be performed. As a result, it is possible to prevent a decrease in usable bandwidth due to competition of the network I / F 25.

  FIG. 18 is a sequence diagram illustrating another example of data communication between terminal device 11A and terminal device 11B in FIG. In this sequence diagram, the communication function unit 51-1A and the communication function unit 51-1B via the network I / Fs 25-2A and 25-2B as shown in FIG. 17 are obtained by the processing shown in the sequence diagram of FIG. Communication function units 51-3A and 51- in the state where communication is performed between the communication function unit 51-2A and the communication function unit 51-2C via the network I / Fs 25-3A and 25-3C. A procedure when 3B communication is newly started is shown.

Since this procedure is the same as that shown in the sequence diagram of FIG. 10, detailed description thereof will be omitted, but the application software in which the terminal device 11A makes a connection request with the terminal device 11B serving as a communication partner. The application ID (“51-3”) as the identifier of p51-3A and the bandwidth usage of each network I / F 25A used in the terminal device 11A are transmitted to the communication device 11B (S603),
When the terminal device 11B can communicate with the application software p51-3B of the terminal device 11B having the same application ID as the application ID ("51-3) transmitted from the terminal device 11A (S601). Based on the bandwidth usage of each network I / F 25A used in the terminal device 11A transmitted from the terminal device 11A and the bandwidth usage of each network I / F 25B used in the terminal device 11B, Select the network I / F 25-3A, 25-3B having the same identifier and the smallest bandwidth usage, for example,
In the terminal device 11A and the terminal device 11B, the selected network I / F 25-3A or 25-3B is notified to the communication function unit 51-3A by the application software p51-3A that has made the connection request and can communicate. Since the communication function unit 51-3B by the application software p51-3B in the state is notified, the network I / Fs 25-3A and 25-3B having the smallest bandwidth among the used network I / Fs 25 are used. The communication function unit 51-3A and the communication function unit 51-3B can communicate with each other (FIG. 19). As a result, communication data concentration on a specific network I / F 25 can be prevented, and broadband data communication can be realized.

  FIG. 20 is a flowchart summarizing the processing of the resource management function unit 52 (hereinafter referred to as resource management processing as appropriate) in the above-described example of data communication. With reference to this flowchart, the operation of the resource management function unit 52 corresponding to the above-described example of data communication will be described.

  In step S1, the resource management function unit 52 of a certain terminal apparatus 11 receives a standby request (for example, S201 in FIG. 8 or S301 in FIG. 10) from the communication function part 51 for connection from another terminal apparatus 11 that is a communication partner. ), And if it is determined that there is no request, the process proceeds to step S2.

  In step S2, the resource management function unit 52 determines whether or not there is a connection request (for example, S202 in FIG. 8 or S302 in FIG. 10) from the communication function unit 51 to another terminal device 11 that is a communication partner. If it is determined that it has not been requested, the process returns to step S1, and the subsequent processes are similarly performed.

  If it is determined in step S1 that the communication function unit 51 has received a standby request for connection from another terminal device 11 that is a communication partner, the resource management function unit 52 executes standby processing in step S3. Details of this processing are shown in FIG. In the description of FIG. 21, the resource management function unit 52 that is requested by the communication function unit 51 to wait for a connection from the terminal device 11 that is the communication partner is referred to as a resource management function unit 52r. The communication function unit 51 that has performed is referred to as a communication function unit 51r, the terminal device 11 that is in a standby state is referred to as a terminal device 11r, and the terminal device 11 that is a communication partner of the terminal device 11r is referred to as a terminal device 11s.

  In step S11, the resource management function unit 52r of the terminal device 11r receives the application ID transmitted from the communication function unit 51r, stores it in the application ID list, and accepts a standby request.

  Next, in step S12, the resource management function unit 52r, the application ID transmitted from the terminal device 11s (the resource management function unit 52) serving as the communication partner, the unused list (for example, S203 in FIG. 8) or the band A usage list (for example, S303 in FIG. 10) is received, and a connection request is received from the terminal device 11s as a communication partner.

  In step S13, the resource management function unit 52r confirms whether or not the received application ID is included in the application ID list, and the communication function unit 51r having the application ID is in a standby state. Here, it is assumed that it is in a standby state.

  Next, in step S14, when the resource management function unit 52r receives the unused list, the identifier of the network I / F 25 that is not used in the terminal device 11s that is the communication counterpart indicated in the unused list, and the terminal The identifiers of the network I / F 25 that are not used in the device 11r are compared, and one set of the network I / F 25 that has the same identifier and is not used in any of the terminal devices 11s and 11r is selected (for example, , S204 in FIG.

  When the bandwidth usage list is received, the resource management function unit 52r uses the bandwidth usage of the network I / F 25 of the communication partner terminal device 11s indicated in the bandwidth usage list and the terminal device r. The bandwidth usage of each network I / F 25 is compared, and one set of network I / Fs 25 having the same identifier and a small bandwidth usage is selected (for example, S304 in FIG. 10).

  In step S15, the resource management function unit 52r assigns the identifier of each network I / F 25 selected in step S14 to the resource of the terminal device 11s (via the network I / F 25-1 of both the terminal device 11r and the terminal device 11s). The management function unit 52) is notified (for example, S204 in FIG. 8 or S304 in FIG. 10).

  When the network I / F 25 to be used is selected in this way and its identifier is notified to the terminal device 11s that is the communication partner, in step S16, the resource management function unit 52r makes a communication request to the communication function unit 51r that has made the standby request. The network I / F 25 to be used is notified (for example, S206 in FIG. 8 or S306 in FIG. 10).

  Thereafter, the process ends, and the process proceeds to step S2 in FIG.

  If it is determined in step S2 that there is a connection request, the resource management function unit 52 proceeds to step S3 and executes a connection request process. Details of this processing are shown in FIG. In the description of FIG. 22, the resource management function unit 52 that is required to connect to the communication partner terminal device 11 is referred to as a resource management function unit 52 s, and the communication function unit 51 that has made the connection request is referred to as communication. The terminal device 11 that is called the functional unit 51s and enters the connection request state is called the terminal device 11s, and the terminal device 11 that is the communication partner of the terminal device 11s is called the terminal device 11r.

  In step S21, the resource management function unit 52s of the terminal device 11s receives the application ID transmitted from the communication function unit 51s that has made the connection request, and accepts the connection request (for example, S202 in FIG. 8 or S302 of FIG.

  In step S22, the resource management function unit 52s determines whether or not there is an unused network I / F 25 in the terminal device 11s. If it is determined that there is an unused network I / F 25, the resource management function unit 52s generates an unused list in step S23.

  In step S24, the resource management function unit 52s uses the network I / F 25-1 of both the terminal device 11s and the terminal device 11r based on the application ID from the communication function unit 51 that has made the connection request and the generated unused list. To the communication partner terminal device 11r (for example, S203 in FIG. 8).

  If it is determined in step S22 that there is no unused network I / F 25, the resource management function unit 52s generates a bandwidth usage list in step S25.

  In step S26, the resource management function unit 52s receives the application ID from the communication function unit 51 that has made the connection request and the generated bandwidth usage list, via the network I / F 25-1, as a terminal device serving as a communication partner. 11r (for example, S304 in FIG. 10).

  In step S24 or step S26, when the application ID and the unused list or the application ID and the bandwidth usage list are transmitted to the communication partner terminal device 11r via the network I / F 25-1, in step S27, The resource management function unit 52s receives the identifier of the network I / F 25 to be used transmitted from the terminal device 11r that is the communication partner.

  In step S28, the resource management function unit 52s notifies the received identifier of the network I / F 25 to be used to the communication function unit 51s that has made the connection request (for example, S205 in FIG. 8 or S305 in FIG. 10). .

  Thereafter, the processing returns to Step 1 in FIG. The resource management process shown in FIG. 20 is performed in parallel or individually even if the steps are not necessarily processed in time series, as well as processes performed in time series in the order described. This includes the processing to be executed. For example, while waiting for a connection request from a communication partner in the standby process in step S3, another standby process is performed in response to a request from another application, or a connection process is performed in response to a request from another application in step S4. be able to.

  As described above, information on the usage status of each network I / F 25 is exchanged between the terminal apparatuses 11 that perform data communication, and the network I / F to be used is selected based on this information. Communication can be realized.

  In the above description, when there is no unused network I / F 25, the network I / F 25 is shared. However, even if there is an unused network I / F 25, for example, the used network I / F 25 is used. A specific network I / F 25 may be shared according to the performance of / F25.

It is a figure which shows the structural example of the communication system to which this invention is applied. It is a block diagram which shows the structural example of the hardware of 11 A of terminal devices of FIG. It is a block diagram which shows the structural example of the hardware of the terminal device 11B of FIG. It is a block diagram which shows the functional structural example of terminal device 11A and 11B of FIG. It is a sequence diagram explaining the example of the data communication of 11 A of terminal devices in FIG. 4, and the terminal device 11B. It is a figure which shows the communication state of 11 A of terminal devices, and the terminal device 11B. It is a figure which shows the communication state of 11 A of terminal devices and the terminal device 11B after the process shown to the sequence diagram of FIG. It is a sequence diagram explaining the other example of the data communication of 11 A of terminal devices in FIG. 4, and the terminal device 11B. It is a figure which shows the communication state of 11 A of terminal devices and the terminal device 11B after the process shown in the sequence diagram of FIG. It is a sequence diagram explaining the other example of the data communication of 11 A of terminal devices in FIG. 4, and the terminal device 11B. It is a figure which shows the communication state of 11 A of terminal devices and the terminal device 11B after the process shown to the sequence diagram of FIG. It is a figure which shows the other structural example of the communication system to which this invention is applied. It is a sequence diagram explaining the example of the data communication of 11 A of terminal devices in FIG. 12, and the terminal device 11B. It is a figure which shows the communication state of terminal device 11A, 11B, 11C in FIG. It is a figure which shows the terminal device 11A, 11B, 11C communication state after the process shown to the sequence diagram of FIG. FIG. 13 is a sequence diagram illustrating an example of data communication between terminal device 11A and terminal device 11C in FIG. It is a figure which shows the communication state of terminal device 11A, 11B, 11C after the process shown to the sequence diagram of FIG. FIG. 13 is a sequence diagram illustrating another example of data communication between terminal device 11A and terminal device 11B in FIG. It is a figure which shows the communication state of terminal device 11A, 11B, 11C after the process shown to the sequence diagram of FIG. It is a flowchart explaining operation | movement of the resource management function part of a terminal device. It is a flowchart explaining the detail of the standby process in step S3 of FIG. It is a flowchart explaining the detail of the connection process in FIG.20 S4. It is a block diagram which shows a NUMA structure. It is a figure explaining operation | movement of the application software program which communicates in the terminal device of a NUMA structure. It is a figure explaining the example of allocation of the component by the method of Multi-rail with respect to the application software program which communicates in the terminal device of a NUMA structure.

Explanation of symbols

  11A, terminal device, 11B terminal device, 12 network, 13 relay device, 21 CPU, 22 memory, 23 MCH, 24 MCH, 25 network I / F, 51, communication function unit, 52 resource management function unit

Claims (10)

A communication device having a plurality of network interfaces, the first communication device capable of executing an application software program for performing data communication using a predetermined network interface selected from the plurality of network interfaces; In the communication system comprising the second communication device,
The first communication device is
An identifier of an application software program that makes a connection request with the second communication device that is a communication partner, and an identifier of a network interface that is not used in the first communication device are transmitted to the second communication device. First transmission means;
An identifier of a predetermined network interface selected from identifiers of network interfaces that are not used in the first communication device transmitted from the first transmission unit and transmitted from the second communication device. First receiving means for receiving;
First communication means for notifying the application software program for making a connection request with the second communication device, the identifier of the predetermined network interface received by the first reception means;
The second communication device is
Second receiving means for receiving the identifier of the application software program transmitted by the first transmitting means of the first communication device and the identifier of the network interface that is not used in the first communication device. When,
When the application software program of the second communication apparatus having the same identifier as the identifier of the application software program received by the second receiving means is in a standby state in which communication is possible, the second reception Based on the identifier of the network interface not used in the first communication device received by the means and the identifier of the network interface not used in the second communication device, and having the same identifier, Selection means for selecting a network interface that is not used in any of the first communication device and the second communication device;
Second transmission means for transmitting the identifier of the network interface selected by the selection means to the first communication device;
And a second notification means for notifying the network interface selected by the selection means to the application software program in a standby state of the second communication device. The communication system according to claim 1,
The first transmission unit of the first communication device replaces the identifier of the network interface that is not used in the first communication device with the bandwidth usage of the network interface of the first communication device, Along with the identifier of the application software program that makes a connection request with the second communication device that is the communication partner, it is transmitted to the second communication device,
The second receiving unit of the second communication device includes an identifier of the application software program transmitted by the first transmitting unit of the first communication device, and the network of the first communication device. Receive bandwidth usage on the interface,
When the selection unit is in a standby state in which the application software program of the second communication device having the same identifier as the identifier of the application software program received by the second reception unit is in a standby state, Based on the bandwidth usage of the network interface of the first communication device and the bandwidth usage of the network interface of the second communication device received by the second receiving means, and having the same identifier, A communication system characterized by selecting a network interface with low bandwidth usage. In a communication device equipped with a plurality of network interfaces, and capable of executing an application software program for performing data communication using a predetermined network interface selected from the plurality of network interfaces,
An identifier of an application software program that is transmitted from another communication device that is a communication partner and makes a communication request in the other communication device that is the communication partner, and is not used in the other communication device that is the communication partner Receiving means for receiving an identifier of the network interface;
When the application software program of the communication device having the same identifier as the identifier of the application software program received by the receiving means is in a standby state in which communication is possible, the communication partner received by the receiving means Based on the identifier of the network interface that is not used in the other communication device and the identifier of the network interface that is not used in the communication device, the other communication device that has the same identifier and is the communication partner and the above Selection means for selecting a network interface that is not used in any of the communication devices;
Transmitting means for transmitting the identifier of the network interface selected by the selecting means to another communication device serving as the communication partner;
And a notifying means for notifying the network interface selected by the selecting means to the application software program in a standby state of the communication apparatus. The communication device according to claim 3,
The receiving means is transmitted from another communication device serving as a communication partner, and is an identifier of the application software program that makes a communication request in the other communication device serving as the communication partner, and another communication serving as the communication partner. Receive bandwidth usage of the device's network interface,
The selecting means is received by the receiving means when the application software program of the communication device having the same identifier as the identifier of the application software program received by the receiving means is in a standby state in which communication is possible. Based on the bandwidth usage of the network interface of the other communication device as the communication partner and the bandwidth usage of the network interface of the communication device, a network interface having the same identifier and having a low bandwidth usage is selected. A communication device comprising: In a communication method of a communication device having a plurality of network interfaces capable of executing an application software program that performs data communication using a predetermined network interface selected from the plurality of network interfaces ,
An identifier of an application software program that is transmitted from another communication device that is a communication partner and makes a communication request in the other communication device that is the communication partner, and is not used in the other communication device that is the communication partner A receiving step of receiving an identifier of the network interface;
When the application software program of the communication device having the same identifier as the identifier of the application software program received in the reception step is in a standby state capable of communication, the communication partner received in the reception step Based on the identifier of the network interface that is not used in the other communication device and the identifier of the network interface that is not used in the communication device, the other communication device that has the same identifier and is the communication partner and the above A selection step of selecting a network interface that is not used in any of the communication devices;
A transmission step of transmitting the identifier of the network interface selected in the selection step to another communication device serving as the communication partner;
And a notification step of notifying the application software program in the standby state of the communication device of the network interface selected in the selection step. A program that causes a computer to execute communication processing by an application software program that performs data communication using a predetermined network interface selected from a plurality of network interfaces mounted on a communication device,
An identifier of an application software program that is transmitted from another communication device that is a communication partner and makes a communication request in the other communication device that is the communication partner, and is not used in the other communication device that is the communication partner A receiving step of receiving an identifier of the network interface;
When the application software program of the communication device having the same identifier as the identifier of the application software program received in the reception step is in a standby state capable of communication, the communication partner received in the reception step Based on the identifier of the network interface that is not used in the other communication device and the identifier of the network interface that is not used in the communication device, the other communication device that has the same identifier and is the communication partner and the above A selection step of selecting a network interface that is not used in any of the communication devices;
A transmission step of transmitting the identifier of the network interface selected in the selection step to another communication device serving as the communication partner;
A program for causing a computer to execute a communication process including a notification step of notifying the network interface selected in the selection step to the application software program in a standby state of the communication device. In a communication device equipped with a plurality of network interfaces, and capable of executing an application software program for performing data communication using a predetermined network interface selected from the plurality of network interfaces,
Transmission means for transmitting an identifier of an application software program that makes a connection request with another communication device serving as a communication partner and an identifier of a network interface that is not used in the communication device to the other communication device serving as the communication partner When,
Reception for receiving an identifier of a predetermined network interface selected from the identifiers of network interfaces not used in the communication device transmitted by the transmission means, transmitted from another communication device serving as the communication partner Means,
Communication means for notifying the application software program that makes a connection request with the other communication device serving as the communication partner, the identifier of the predetermined network interface received by the receiving means. apparatus. The communication device according to claim 7,
The transmission means transmits an identifier of an application software program that makes a connection request with another communication device that is a communication partner, and a bandwidth usage amount of the network interface of the communication device,
The receiving means transmits an identifier of a predetermined network interface selected based on a bandwidth usage amount of the network interface of the communication apparatus transmitted by the transmission means, transmitted from another communication apparatus serving as the communication partner. A communication device characterized by receiving. In a communication method of a communication device having a plurality of network interfaces capable of executing an application software program that performs data communication using a predetermined network interface selected from the plurality of network interfaces ,
A transmitting step of transmitting an identifier of an application software program that makes a connection request with another communication device that is a communication partner and an identifier of a network interface that is not used in the communication device to the other communication device that is the communication partner. When,
Reception for receiving an identifier of a predetermined network interface selected from identifiers of network interfaces not used in the communication device transmitted in the transmission step, transmitted from another communication device serving as the communication partner Steps,
A communication step of notifying the application software program that makes a connection request with the other communication device that is the communication partner of the identifier of the predetermined network interface received in the reception step. Method. A program that causes a computer to execute communication processing by an application software program that performs data communication using a predetermined network interface selected from a plurality of network interfaces mounted on a communication device,
A transmitting step of transmitting an identifier of an application software program that makes a connection request with another communication device that is a communication partner and an identifier of a network interface that is not used in the communication device to the other communication device that is the communication partner. When,
Reception for receiving an identifier of a predetermined network interface selected from identifiers of network interfaces not used in the communication device transmitted in the transmission step, transmitted from another communication device serving as the communication partner Steps,
A communication step of notifying the application software program that makes a connection request with the other communication device that is the communication partner of the identifier of the predetermined network interface received in the reception step to the computer. A program characterized by letting

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