WO2008023441A1 - programme de commande de chemin et procédé de commande de chemin - Google Patents

programme de commande de chemin et procédé de commande de chemin Download PDF

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Publication number
WO2008023441A1
WO2008023441A1 PCT/JP2006/316766 JP2006316766W WO2008023441A1 WO 2008023441 A1 WO2008023441 A1 WO 2008023441A1 JP 2006316766 W JP2006316766 W JP 2006316766W WO 2008023441 A1 WO2008023441 A1 WO 2008023441A1
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Prior art keywords
network
packet
information
route
unit
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PCT/JP2006/316766
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English (en)
Japanese (ja)
Inventor
Makoto Shinohara
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Fujitsu Limited
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Application filed by Fujitsu Limited filed Critical Fujitsu Limited
Priority to PCT/JP2006/316766 priority Critical patent/WO2008023441A1/fr
Publication of WO2008023441A1 publication Critical patent/WO2008023441A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks

Definitions

  • the present invention relates to a path control program and a path control method for determining which network to communicate with another information processing apparatus in an information processing apparatus connected to a plurality of networks.
  • the present invention relates to a route control program and a route control method capable of dynamically switching a network to be used in units of server devices or applications.
  • each server device includes as many network devices as the number of connected networks (hereinafter also simply referred to as “devices”), and an IP address is assigned to each network device.
  • an application that operates on a server device having a plurality of network devices communicates with another application that operates on another server device by using one of the IP addresses assigned to each network device.
  • Patent Document 1 discloses a technique for dynamically changing a network to be used in accordance with a load state of the network.
  • the technology disclosed in this document is such that a route control device with a relay device search function periodically obtains load information and the like of each network so that communication is performed through the network with the lowest cost. It is to control.
  • Patent Document 1 Japanese Patent Laid-Open No. 11 298524
  • Patent Document 1 the technique disclosed in Patent Document 1 is to uniformly switch the network used by all server devices belonging to the network, and is in units of server devices or applications. In other words, it was impossible to dynamically switch the network used in the system. In data centers and the like, there is a strong demand for the provision of technology for dynamically switching the network used on a server unit basis or application basis in order to make full use of network performance.
  • the present invention has been made in view of the above, and provides a path control program and a path control method capable of dynamically switching a network to be used in units of servers or applications. Objective.
  • an information processing apparatus connected to a plurality of networks can be connected to other information processing apparatuses via which network.
  • a route control program for determining whether to perform communication wherein the route control program is assigned a virtual network driver as an virtual network driver, is assigned a virtual network driver, and receives virtual application IP packet transmission / reception requests.
  • a route selection unit that selects a network used for communication from the networks based on a predetermined selection logic when an IP packet transmission request is received in the virtual network unit, The IP path is transmitted through the network selected by the route selection unit. It functions as a packet transfer unit that performs packet transfer processing.
  • a route control for determining which network is used to communicate with another information processing device V in an information processing device connected to a plurality of networks.
  • the various application capabilities also receive an IP packet transmission / reception request process, and the transmission / reception request reception process and the transmission / reception request reception process.
  • the virtual network driver accepts an IP packet transmission request, and transmits the requested IP packet based on the selection logic and transmits it via the selected network.
  • the network used for communication can be dynamically switched in units of server devices or applications.
  • the route selection unit changes a type of selection logic for selecting a network used for communication according to a schedule stored in advance. It is characterized by that.
  • the type of selection logic for selecting a network to be used for communication is changed according to a pre-stored schedule.
  • the network to be used can be changed dynamically.
  • the route selection unit may correspond to a port number set in the IP packet and a port number stored in advance and a selection logic.
  • a network used for communication is selected based on a selection logic corresponding to a port number set in the IP packet in comparison with the table.
  • the selection logic for selecting a network to transmit an IP packet is changed based on a correspondence table of port numbers and selection logic stored in advance. Therefore, the network to be used can be changed dynamically according to the requirements of each application.
  • the information processing apparatus uses the information of the IP packet transmitted via the virtual network unit for each destination address and port number.
  • the route selection unit further sets the destination address and port number set in the IP packet requested to be transmitted and the information recorded by the communication status recording unit.
  • a selection logic for selecting a network to be used for communication by comparing and obtaining information on the communication status of IP packets having the same destination address and port number and comparing the information with a predetermined threshold. It is characterized by selecting.
  • the selection logic for selecting the network that transmits the IP packet is changed based on the actual usage situation, the complicated setting is not required.
  • the network to be used can be changed dynamically according to the communication status of each application.
  • a virtual network driver receives an IP packet transmission request, and transmits the requested IP packet via a network selected based on selection logic.
  • the network used for communication can be dynamically switched in units of server devices or applications.
  • the type of selection logic for selecting a network used for communication is changed according to a schedule stored in advance, the day of the week or the time zone
  • the network to be used can be dynamically changed according to the requirements of each.
  • the selection logic for selecting a network that transmits an IP packet is changed based on a correspondence table of port numbers stored in advance and selection logic.
  • the network to be used can be dynamically changed according to the requirements of each application.
  • the selection logic for selecting a network to transmit an IP packet is changed based on an actual usage situation, a complicated setting is made.
  • the effect is that the network to be used can be changed dynamically according to the communication status of each application.
  • FIG. 1 is a diagram illustrating an example of address designation in the route control method according to the present embodiment.
  • FIG. 2 is a functional block diagram showing a node configuration.
  • FIG. 3 is a functional block diagram showing the configuration of the path control program according to the present embodiment.
  • FIG. 4 is a diagram showing an example of node information.
  • FIG. 5 is a diagram illustrating an example of setting data.
  • FIG. 6 is a diagram showing an example of device information.
  • FIG. 7 is a diagram showing an example of route information.
  • FIG. 8 is a diagram showing an example of schedule information.
  • FIG. 9 is a flowchart showing the processing procedure of the routing control program at the time of packet transmission.
  • FIG. 10 is a flowchart illustrating a processing procedure for device selection processing.
  • FIG. 11 is a flowchart showing a processing procedure of the routing control program at the time of packet reception.
  • FIG. 12 is a functional block diagram showing the configuration of the path control program according to the present embodiment.
  • FIG. 13 is a diagram showing an example of setting information by port number.
  • FIG. 14 is a diagram showing an example of communication status information.
  • FIG. 15 is a flowchart showing a processing procedure of a route control program at the time of packet transmission.
  • FIG. 16 is a flowchart showing a processing procedure of selection logic selection processing.
  • FIG. 17 is a diagram showing an example of conventional address designation.
  • node represents various information processing devices such as a server device and a personal computer connected to a network.
  • FIG. 17 is a diagram showing an example of conventional address designation. As shown in the figure, the node 100 is connected to the network 11 via the network device 110 and is connected to the network device.
  • Node 200 is a network
  • an IP address is usually assigned to each network driver that controls the network device, and by specifying this IP address, it is determined which network device is used for communication.
  • the application 112 controls the network device 110 that controls the network device 110.
  • IP address As the destination, it is necessary to communicate via the network 12, or to communicate with either V or Vs.
  • application 112 communicates with application 212 via 1S network 11.
  • the IP address assigned to 1 is “10. 124. 128. 11” and the network driver 211
  • the application 112 sets “10. 124. 128. 11” as the transmission destination of the IP packet 21 to be transmitted.
  • the IP packet is also sent out by the application 112. 21
  • the source address (SA) and destination address (DA) are set to “10. 124. 128. 1 1” and “10. 124. 128. 21”, respectively. Is transmitted to the application 212 via the.
  • the administrator has configured to communicate with application 212 running on
  • the IP address assigned to the network driver 111 is “10
  • the application 112 sends the IP knot 22 to be sent.
  • the IP packet is also sent out by the application 112. 22
  • the source address (SA) and destination address (DA) are set to “10. 124. 128. 12” and “10. 124. 128. 22”, respectively. Is transmitted to the application 212 via the.
  • FIG. 1 is a diagram illustrating an example of address designation in the route control method according to the present embodiment.
  • the node 300 is connected to the network 11 via the network device 310.
  • the network 400 is connected to the network 11 via the network device 410, and the network
  • other nodes also include a plurality of network devices, which are connected to the network 11 via any one of the network devices and connected to the network 12 via other network devices.
  • each application communicates with other applications by specifying the representative IP address assigned to the virtual network driver provided in the node, regardless of how many network devices the node has. Do it.
  • the node 300 is provided with a virtual network driver 313, and the node 400 0 is provided with a virtual network driver 413.
  • a representative IP address “10. 124. 128. 10” is assigned to the virtual network driver 313, and a representative IP address “10. 124. 128. 20” is assigned to the virtual network driver 413. Assigned.
  • application 312 When communicating with application 412, application 312 sends an IP packet
  • IP packet 31 thus designated is received by the virtual network driver 313 and transmitted to the application 412 via the network selected by a predetermined selection logic.
  • the designated IP packet 32 is received by the virtual network driver 313 and transmitted to the application 412 via the network selected by a predetermined selection logic.
  • each application has only one virtual network driver for each node.
  • the representative IP address assigned to it is possible to communicate with applications running on other nodes without explicitly specifying individual network devices.
  • the load for designating the IP address to be used for each application is reduced. Also, depending on the settings of the selection logic, when there is a lot of traffic on a certain network, the network used by the application can be switched depending on the situation. It becomes possible.
  • FIG. 1 is a functional block diagram showing the configuration of the node 300.
  • the node 300 includes network devices 310 to 310n and various arithmetic processing units.
  • CPU Central Processing Unit
  • medium reader that reads a program from a recording medium
  • RAM random access memory
  • hard disk device that can store various information 350 are connected by bus 360.
  • the hard disk device 350 includes a kernel program 500 that is a basic part of the operating system that controls the operation of the node 300, an application program 600 that executes various processes such as network communication according to the purpose, and a main program.
  • the path control program 700 for realizing the path control method according to the embodiment and the setting data 800 used by the path control program 700 are stored.
  • the kernel program 500 is expanded on the RAM 340 by the CPU 320 when the node 300 is activated, and functions as an operating system.
  • the path control program 700 is also expanded on the RAM 340 by the CPU 320, reads the setting data 800, and starts executing various processes for realizing the path control method according to the present embodiment. Become.
  • a part corresponding to the virtual network driver 313 is incorporated into the operating system as a driver, and the other part is executed outside the operating system as a daemon. .
  • a part of the routing program 700 other than the part corresponding to the virtual network driver 313 may be incorporated into the operating system.
  • the path control program 700 is not necessarily stored in the hard disk device 350, and the node 300 may read and execute this program stored in a storage medium such as a CD-ROM. Good.
  • this program is stored in another information processing apparatus connected to the node 300 via a public line, the Internet, a LAN (Loca 1 Area Network), a WAN (Wide Area Network), etc. Read the program and execute it.
  • FIG. 3 is a functional block diagram showing the configuration of the route control program 700 according to the present embodiment.
  • the path control program 700 includes a virtual network driver unit 710, an information initialization unit 720, a network monitoring unit 730, a transmission control unit 740, a reception control unit 750, and node information 761. , Device information 762, route information 763, and schedule information 764.
  • the virtual network driver unit 710 is a processing unit that functions as a virtual network driver in the node where the path control program 700 operates, and corresponds to the virtual network driver 313 shown in FIG.
  • the virtual network driver unit 710 functions as an interface for exchanging IP packets with an application that operates on a node on which the routing control program 700 operates.
  • the information initialization unit 720 is a processing unit that initializes the node information 761, the device information 762, the route information 763, and the schedule information 764 after the route control program 700 is started. The Details of these information are shown below.
  • FIG. 4 is a diagram illustrating an example of the node information 761.
  • the node information 761 is information indicating the correspondence between the node and the representative IP address, and includes items such as a node name and a representative IP address.
  • the node name indicates the host name of the node
  • the representative IP address indicates the IP address assigned to only one virtual network driver that exists in the node.
  • the information initialization unit 720 initially generates node information 761 by reading a predetermined portion of the setting data 800.
  • FIG. 5 is a diagram illustrating an example of the setting data 800.
  • the representative IP address assigned to each node is registered.
  • the IP address assigned to the network driver corresponding to those network devices and the transmission and reception of IP packets in the network to which those network devices are connected are prohibited.
  • a list of port numbers is also registered.
  • FIG. 6 is a diagram showing an example of device information 762.
  • device information 762 is information related to network devices provided by other nodes, and includes node name, device name, IP address, prohibited port, transfer speed, maximum transmission unit (MTU) length, It has items such as transfer frequency and failure rate.
  • the node name indicates the host name of the node where the network device exists, and corresponds to the node name of the node information 761.
  • the device name is the name of the network device
  • the IP address is the IP address assigned to the network driver corresponding to the network device.
  • the prohibited port is an item that sets a list of port numbers that are prohibited from sending and receiving IP packets in the network to which the network device is connected.
  • the transfer rate, MTU length, transfer frequency, and failure rate are the transfer rate, MTU length, transfer frequency, and failure rate of the network to which the network device is connected.
  • the information initialization unit 720 initially generates a node name to a prohibited port of the device information 762 by reading a predetermined part of the setting data 800. Then, after initial generation of route information 763 to be described later, it communicates with other nodes using connectable routes, and based on the result, the transfer rate and MTU length of each network are measured to initialize the information. Part 720 Determine. For the transfer frequency and failure rate, the information initialization unit 720 sets the value to 0, and the update is performed by the network monitoring unit 730.
  • FIG. 7 is a diagram showing an example of route information 763.
  • the path information 763 is information indicating a connection relationship between network devices, and includes items such as a self-node device, another node device, and a connection state.
  • the own node device is an IP address corresponding to the network device actually provided by the node on which the routing control program 700 is operating, and the other node device is the IP address corresponding to the network device actually provided by the other node.
  • FIG. 7 is an example of route information 763 in the node 300.
  • the connection state indicates whether or not connection is possible between the network device indicated by the own node device and the network device indicated by the other node device.
  • the information initialization unit 720 initially generates route information 763 by reading a predetermined part of the setting data 800.
  • the connection state is initialized by the information initialization unit 720 and then updated by the network monitoring unit 730 so as to actually reflect the connection state.
  • FIG. 8 is a diagram showing an example of schedule information 764.
  • the schedule information 764 is information indicating a schedule for changing the selection logic to be applied, and includes one item, a day of the week, a time zone, and a selection logic.
  • the day of the week and the time of day are the day of the week and the time of day to which the corresponding selection logic applies.
  • the schedule is expressed by a combination of the day of the week and the time zone.
  • the schedule may be expressed by a combination of the date and the time zone.
  • the selection logic is a logic for selecting a network to be used for a plurality of network power communication to which a node is connected.
  • “Reliability priority” is the logic that preferentially selects the network with the lowest failure rate
  • “Transfer frequency priority” is the logic that preferentially selects the network with the lowest transfer frequency
  • “Priority” is the logic that preferentially selects the network with the highest transfer rate.
  • the network monitoring unit 730 refers to the route information 763 and periodically uses the PING and netstat commands to monitor each network, reflects the connection status in the route information 763, and transfers the obtained transfer. This is a processing unit that sets the frequency and failure rate in the device information 762.
  • the transmission control unit 740 is a control unit that controls transmission of IP packets, and includes a route selection unit 741 and a packet transfer unit 742.
  • the route selection unit 741 is a processing unit that selects which network is used to transmit a packet.
  • the route selection unit 741 compares the current date and time with the schedule information 764 and determines the selection logic to be applied. After referring to the node information 761 and identifying the node specified as the destination address, the device information 762 and the route information 763 are referred to, and the selection logic in the available network is the most. Select a matching network.
  • the packet transfer unit 742 rewrites the transmission destination address and the transmission source address of the IP packet so that the IP packet is transmitted via the network selected by the route selection unit 741, and transmits the rewritten transmission.
  • This processing unit forwards IP packets to the network driver corresponding to the original address.
  • Reception control section 750 is a control section that controls reception of IP packets. Specifically, the reception control unit 750 monitors reception of an IP packet by a network driver corresponding to each network device, and acquires an IP packet received by any network driver of V or any one of them. After rewriting the destination address and source address so that the combination of the representative IP address is obtained, specify the port number set in the IP packet via the virtual network driver unit 710 and wait for reception. The IP packet to the current application.
  • Figure 9 5 is a flowchart showing a processing procedure of the route control program 700 at the time of packet transmission. This processing procedure is executed each time an IP packet destined for another node is received by the virtual network driver unit 710.
  • the route selection unit 741 refers to the schedule information 764 and selects the selection logic corresponding to the current date and time. Is acquired (step S102). Then, a device selection process to be described later is executed to select a network device to be used for communication between the destination node and the own node (step S103).
  • the packet transfer unit 742 rewrites the IP packet address so that the network device selected in step S103 becomes the transmission destination and the transmission source (step S104), and the packet transfer unit 742 updates the IP packet address selected in step S103.
  • the IP packet is transferred to the network driver corresponding to the network device so that the IP packet is transmitted from the network device power of the node (step S 105).
  • FIG. 10 is a flowchart illustrating a processing procedure of device selection processing.
  • the route selection unit 741 identifies the destination node by comparing the destination address of the IP packet received by the virtual network driver unit 710 with the node information 761 (step S201), and device information From 762, information on the network device provided in the node is extracted (step S202).
  • step S203 one network device with the highest priority is selected. If there is no corresponding network device (No at step S204), predetermined error processing is executed.
  • Step S205 the port number set in the IP packet is acquired (Step S205). Then, referring to the prohibited port item in the device information 762, if the acquired port number is forbidden to transmit / receive in the network corresponding to the selected destination network device (Yes in step S206). ), Excluding the selected network device (step S209), returning to step S203, selecting the network device with the next highest priority, and performing the subsequent processing again.
  • the port number acquired in step S205 does not correspond to a prohibited port (No in step S206)
  • step S207 If there is no corresponding network device (No at step S208), the selected destination network device is excluded from the selection target (step S209), and the process returns to step S203 and the next higher priority network is selected. Select the device and re-execute the subsequent processing.
  • the network device is set as the transmission source network device, and the processing is ended with the network device selected in step S203 as the transmission destination network device.
  • step S201 it is specified that the destination node is host B.
  • step S202 it is determined that the network device powers “device Bl” and “device B2” of the host B are provided.
  • step S203 since the selection logic is “transfer speed priority”, if the device information 762 is as shown in FIG. 6, “device B2” having the highest transfer speed is selected. Since there is a corresponding network device, Step S204 is Yes.
  • step S205 the port number set in the IP packet is acquired.
  • the acquired port number is “20” and the device information 762 is as shown in FIG. 6, it is found in step S206 that the port is a prohibited port of “device B2” (step S206 Yes), and in step S209, the selected “device B 2” is not selected.
  • Step S206 is No.
  • step S207 the network of the local node that can be connected to "device Bl" Device is extracted.
  • device information 762 in Fig. 6 the IP address of “Device Bl” is “10. 124. 11. 20”.
  • the route information in Fig. 7 it is found that the own node device that can be connected to this IP address is “10. 124.11. 11.10”.
  • step S208 becomes Yes, and the process ends.
  • FIG. 11 is a flowchart showing a processing procedure of the route control program 700 at the time of packet reception. This processing procedure is repeatedly executed by the reception control unit 750 after the initial processing by the information initialization unit 720 is completed.
  • the reception control unit 750 monitors the reception of the IP packet by the network driver corresponding to each network device of its own node (step S301), and if the IP packet is received, The IP packet is acquired (step S302).
  • the source address and destination address of the IP packet are rewritten to the representative IP address (step S303), and the virtual network driver unit 710 Specify the port number set in the IP packet and wait for reception! /, Then deliver the IP packet to the application (step S304).
  • an example of a routing control program and a routing control method in which a representative IP address is provided for each node and a network used for communication is dynamically changed in units of nodes has been described. It is also possible to configure the network to dynamically change on a per-application basis. Therefore, in this embodiment, an example of a route control program and a route control method capable of dynamically changing a network used for communication in units of applications will be described.
  • FIG. 12 is a functional block diagram showing the configuration of the path control program 900 according to the present embodiment.
  • the route control program 900 is a program that is stored and executed in an information processing apparatus or the like connected to a plurality of networks such as the node 300 like the route control program 700 described above.
  • the path control program 900 includes a virtual network driver unit 910, Information initialization unit 920, network monitoring unit 730, transmission control unit 940, reception control unit 750, node information 761, device information 762, route information 763, setting information by port number 965, Communication status information 966 and a communication status recording unit 970 are included.
  • the virtual network driver unit 910 is a processing unit that functions as a virtual network driver in a node where the path control program 900 operates, and corresponds to the virtual network driver 313 shown in FIG.
  • the virtual network driver unit 710 functions as an interface for exchanging IP packets with applications running on the node where the routing control program 700 runs, and also communicates information about IP packets sent via itself.
  • the status recording unit 970 is notified and recorded in the communication status information 966.
  • the information initialization unit 920 is a processing unit that initializes the node information 761, device information 762, route information 763, and port number-specific setting information 965 after the route control program 900 is activated.
  • FIG. 13 is a diagram showing an example of the setting information 965 by port number.
  • the port number-specific setting information 965 is information indicating the correspondence between the port number and the selection logic, and has items of port number, selection logic, and! / ⁇ .
  • the port number is a number for specifying an application as a communication partner in combination with the IP address, and corresponds almost one-to-one with the application.
  • the selection logic is a logic for selecting a network that is also used for communication by a plurality of network powers to which the node is connected, and has values such as “reliability priority”, “transfer frequency priority”, and “transfer speed priority”. .
  • the port number-specific setting information 965 only the port numbers for which the selection logic is to be explicitly specified need to be registered, and all the port numbers and the selection logic for communication using the port numbers are used. It is not necessary to register a combination of.
  • an appropriate selection logic is set based on the information recorded in the communication status information 966 by the communication status recording unit 970. Automatically selected.
  • the communication status recording unit 970 is a processing unit that records information on the IP packet transmitted via the virtual network driver unit 910 in the communication status information 966 for each destination IP address and port number.
  • FIG. 14 is a diagram showing an example of the communication status information 966. As shown in FIG. As shown in the figure, the communication status information 966 includes items such as a destination representative IP address, a port number, the number of transmissions, and a transmission amount.
  • the transmission destination representative IP address is the transmission destination address set in the IP packet
  • the port number is the port number set in the IP packet.
  • the number of transmissions and the amount of transmissions are the cumulative number of transmissions and transmissions of IP packets with that IP address and port number.
  • the transmission control unit 940 is a control unit that controls transmission of IP packets, and includes a route selection unit 941 and a packet transfer unit 742.
  • the route selection unit 941 is a processing unit that selects which network is used to transmit a packet.
  • the route selection unit 941 refers to the port number setting information 965, and sets the port number set in the IP packet. If the corresponding selection logic is registered !, the network to be used is selected using the selection logic.
  • the route selection unit 941 refers to the communication status information 966, and transmits the IP transmitted by designating the same destination address and port number. Select an appropriate selection logic based on the number of packets sent and the amount of transmission, and use that selection logic to select the network to use.
  • FIG. 15 is a flowchart showing the processing procedure of the route control program 900 at the time of packet transmission. This processing procedure is executed every time an IP packet destined for another node is received by the virtual network driver unit 910.
  • the route selection unit 941 executes selection logic selection processing described later to select the selection logic. (Step S402). Then, the device selection process already described is executed to select a network device to be used for communication between the destination node and the own node (step S403). [0097] Then, the packet forwarding unit 742 rewrites the IP packet address so that the network device selected in step S403 becomes the transmission destination and transmission source (step S404), and the packet forwarding unit 742 rewrites the own node selected in step S403. The IP packet is transferred to the network driver corresponding to the network device so that the IP packet is transmitted from the network device (step S405).
  • FIG. 16 is a flowchart showing a processing procedure of selection logic selection processing.
  • the route selection unit 941 searches the port number setting information 965 using the port number of the IP packet received by the virtual network driver unit 910 as a key (step S501), and there is such information. If (Yes at step S502), the selection logic included in the retrieved information is selected and the process is terminated (step S503).
  • step S501 the selection logic corresponding to the port number is found in step S501, and “transfer speed priority” is selected as the selection logic (step S503).
  • the communication status information 966 is searched using the destination address and port number of the IP packet as keys (step S504). If there is applicable information (Yes at step S505), the transmission amount included in the retrieved information is divided by the elapsed time after startup to calculate the transmission amount per hour (step S506). If the transmission amount is equal to or greater than the predetermined threshold (Yes at Step S507), “Transfer priority” is selected as the selection logic so that a large amount of IP packets can be processed at high speed, and the process is terminated (Step S507). S508).
  • Step S509 If the transmission amount per time is smaller than the predetermined threshold (No at step S507), the number of transmissions included in the retrieved information is divided by the elapsed time after startup to calculate the number of transmissions per hour. (Step S509) If the number of transmissions per hour is equal to or greater than the predetermined threshold (Yes at Step S510), select "Transfer Frequency Priority" as the selection logic so that traffic does not overflow with a large number of IP packets. To end the processing (step S511).
  • route control programs 700 and 900 can be variously changed without departing from the scope of the present invention.
  • the route control programs 700 and 900 can be combined so that the network to be used can be switched for each application according to a pre-stored schedule.
  • the determination and selection of a prohibited port using only the port number and the selection logic are performed. These determinations and selections are performed by a combination of the protocol number and the port number. Moyo.
  • the route control program and the route control method according to the present invention communicate with other information processing devices via any network, in addition to information processing devices connected to a plurality of networks. This is useful when deciding whether or not to perform the operation, and is particularly suitable when it is necessary to dynamically switch the network to be used in units of servers or applications.

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Abstract

L'invention concerne une technique dans laquelle le réseau utilisé par chaque serveur ou chaque application peut être commuté dynamiquement. Un programme de commande de chemin (700) comprend une section de gestionnaire de réseau virtuel (710) à laquelle une adresse IP est attribuée comme un gestionnaire de réseau virtuel et qui reçoit des demandes de diverses applications pour transmettre/recevoir des paquets IP, une section de sélection de chemin (741) pour sélectionner un réseau utilisé pour la communication sur la base d'une logique de sélection prédéterminée lorsqu'une demande pour transmettre un paquet IP est reçue par la section de gestionnaire de réseau virtuel (710), et une section de transfert de paquet (742) pour transférer le paquet IP à transmettre dans le réseau sélectionné par la section de sélection de chemin (741).
PCT/JP2006/316766 2006-08-25 2006-08-25 programme de commande de chemin et procédé de commande de chemin WO2008023441A1 (fr)

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* Cited by examiner, † Cited by third party
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JP2003348134A (ja) * 2002-05-28 2003-12-05 Nec Soft Ltd 通信経路選択システム
JP2004023693A (ja) * 2002-06-20 2004-01-22 Toshiba Corp 通信サービス用サーバ、通信サービス方法およびプログラム
JP2005072759A (ja) * 2003-08-21 2005-03-17 Sony Corp 送信装置および方法、受信装置および方法、通信装置および方法、並びにプログラム
JP2005294966A (ja) * 2004-03-31 2005-10-20 Hitachi Software Eng Co Ltd データ通信制御システム及びデータ通信制御方法
JP2005354280A (ja) * 2004-06-09 2005-12-22 Fujitsu Ltd ポリシールール最適化方法および装置
JP2006121192A (ja) * 2004-10-19 2006-05-11 Nec Corp データ送信装置、データ送信方法、データ送信プログラムおよび記録媒体

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003348134A (ja) * 2002-05-28 2003-12-05 Nec Soft Ltd 通信経路選択システム
JP2004023693A (ja) * 2002-06-20 2004-01-22 Toshiba Corp 通信サービス用サーバ、通信サービス方法およびプログラム
JP2005072759A (ja) * 2003-08-21 2005-03-17 Sony Corp 送信装置および方法、受信装置および方法、通信装置および方法、並びにプログラム
JP2005294966A (ja) * 2004-03-31 2005-10-20 Hitachi Software Eng Co Ltd データ通信制御システム及びデータ通信制御方法
JP2005354280A (ja) * 2004-06-09 2005-12-22 Fujitsu Ltd ポリシールール最適化方法および装置
JP2006121192A (ja) * 2004-10-19 2006-05-11 Nec Corp データ送信装置、データ送信方法、データ送信プログラムおよび記録媒体

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