JP4589939B2 - Connection information management method, apparatus and program - Google Patents

Description

  The present invention relates to a connection information management method, apparatus, and program, and more particularly to a network site for connecting a plurality of computer sites in a wide-area distributed grid environment composed of geographically and physically distributed computers managed by different organizations. The present invention relates to a connection information management method, apparatus, and program for managing and providing connection information of edge devices.

Conventionally, as shown in FIG. 14, there is a system in which a computer site where a computer group is installed is connected to a plurality of edge devices at a network site. The NRM (Network Resource Management System) manually selects one of the edge devices connected to each computer site as an active device and presents it to the user. The user uses the specified edge device or a part thereof by designating it (for example, see Non-Patent Documents 1 and 2).
Atsuko Takebo, et al. "Core location experiment of computational resources and optical path network resources in the grid" SACSIS (Symposium on Advanced Computing systems and Infrastructures) 2006 Atsuko Takebo, et al. "Computer / Network Resource Core Experiment between Japan and the United States through Middleware Collaboration" 164th Computer Architecture and 109th High Performance Computing Joint Research Presentation

  However, in the NRM, when there are a plurality of edge devices in the network site, the active edge device and the spare edge device are not managed, and the active edge device and the spare edge device are dynamically searched. Therefore, only one edge device can be notified to the user. For this reason, when a working edge device fails at a certain computer site, there is a problem that the user cannot know an edge device that can be designated other than the edge device designated by the NRM.

  For example, in FIG. 14, when communication is performed between the PC at the computer site # 1 and the PC at the computer site # 2, the edge device A at the start point and the edge device B at the end point of the network site are presented from the NRM. Although the devices A and B were used, if these edge devices become unusable due to the occurrence of a failure or the like, it is assumed that the connection to the representative router C was possible via the edge devices EF. However, since NRM does not grasp this, it cannot be presented to users of computer sites.

  The present invention has been made in view of the above points. In the NRM, when there are a plurality of edge devices in a certain computer site, it is possible to automatically search for edge devices connected to the computer site. It is an object of the present invention to provide a connection information management method, apparatus, and program that can manage a network and present a usable edge device to a user.

The present invention (Claim 1) is a connection information management method for managing active and spare edge devices that can be used when there are a plurality of edge devices at a computer site.
In a computer used as a network resource management system (NRM), when an administrator who manages NRM newly registers a computer site,
Observed by acquiring the identification information of the edge device collected from the network in advance, and communicating between the computer and the edge device specified based on the input identification information of the computer and the identification information of the edge device. Obtaining observation information and storing it in the connection management information storage means,
Based on the observation information of the connection management information storage means, a working / spare edge device is determined and stored in the connection management information storage means;
And a notification step of notifying the manager's device of the working / spare edge device.

  FIG. 1 is a diagram for explaining the principle of the present invention.

The present invention (Claim 2) is a connection information management method for managing active and spare edge devices that can be used when a plurality of edge devices exist at a computer site.
In a computer used as a network resource management system (NRM),
A request receiving step (step 1) for receiving a connection destination candidate request including identification information of a computer to be communicated from the user terminal;
The identification information of the edge device collected in advance from the network is acquired (step 2), and the computer and the edge device identified based on the identification information of the computer extracted from the connection destination candidate request and the identification information of the edge device The observation information observed by performing communication between them (step 3) and storing the observation information in the connection management information storage means (step 4);
Based on the observation information of the connection management information storage means, a working / spare edge device is determined and stored in the connection management information storage means (step 5);
A notification step (step 6) of notifying the user terminal that is the source of the connection destination candidate request of the working / backup edge device is performed.

Further, the present invention (Claim 3) is the observation information acquisition step,
Log in to the edge device based on the identification information of the edge device,
Based on the identification information of the computer, observation information is acquired by causing the computer to transmit a signal from which observation information can be acquired to the computer.

Further, the present invention (Claim 4) is the observation information acquisition step,
Log into the computer based on the computer's identification information,
Based on the identification information of the edge device, the observation information is acquired by causing the computer to transmit a signal capable of acquiring the observation information from the computer.

Further, the present invention (Claim 5) is a signal from which observation information can be acquired.
A Ping command, a Traceroute command, an LMP (Link Management Protocol), IETF RFC4204, or similar packet in ICMP (Internet Control Message Protocol) is used.

  Further, according to the present invention (Claim 6), a Ping command is transmitted a plurality of times, a plurality of delay times are acquired, an average thereof is obtained, and acquired as observation information.

Further, the present invention (Claim 7), in the order determination step,
Among the communication delay times recorded in the connection management information storage means, the shortest communication delay time, or the edge device of the minimum hop number of the hop number is the active edge device,
Of the communication delay times recorded in the connection management information storage means, the edge device having the second smallest communication delay time or the second smallest hop number is set as a spare edge device.

Further, the present invention (Claim 8) registers the computer identification information by adding a group identifier to the computer identification information.
In the observation information acquisition step,
The computer information storage means is searched based on the identification information of the computer, and at least one computer belonging to a group is selected from the registered computers based on the group identifier, and the identification information of the selected computer is selected. Observation information is acquired using the identification information of the edge device.

The present invention (Claim 9) is a connection information management device for managing the active and spare of an edge device that can be used when there are a plurality of edge devices at a computer site.
Edge information storage means for storing edge device connection information collected from the network for each identification information;
Observed by acquiring the identification information of the edge device from the edge information storage means, and performing communication between the computer and the edge device specified based on the input identification information of the computer and the identification information of the edge device. Observation information acquisition means for acquiring observation information and storing it in the connection management information storage means;
Based on the observation information, a rank determining unit that determines a working / spare edge device and stores it in the connection management information storage unit;
Notification means for notifying the manager's device of the working / spare edge device.

  FIG. 2 is a principle configuration diagram of the present invention.

The present invention (Claim 10) is a connection information management device for managing the active and spare of an edge device that can be used when there are a plurality of edge devices at a computer site.
Edge information storage means 103 storing connection information of edge devices collected from the network 300 for each identification information;
Computer information storage means 102 storing information of the computer 500 collected from the computer site for each identification information;
Request receiving means 111 for receiving a connection destination candidate request including identification information of a computer to be communicated from the user terminal 200;
The identification information of the edge device 400 is acquired from the edge information storage means 103, and the computer 500 and the edge device 400 identified based on the identification information of the computer extracted from the connection destination candidate request and the identification information of the edge device An observation information acquisition unit 161 that acquires observation information observed by performing communication with the connection management information storage unit 101;
A rank determining unit 162 for determining a working / spare edge device based on the observation information and storing it in the connection management information storage unit;
Notification means 112 for notifying the user terminal that is the source of the connection destination candidate request of the working / spare edge device.

Further, the present invention (claim 11) is the observation information acquisition means 161,
Based on the identification information of the edge device, login to the edge device 400 is performed, and based on the identification information of the computer, the observation information is acquired by causing the computer to transmit a signal from which the observation information can be acquired from the edge device 400.

Further, the present invention (claim 12) is the observation information acquisition means 161,
Based on the identification information of the computer, the computer 500 logs in to the computer 500, and based on the identification information of the edge device, the computer 500 transmits a signal from which the observation information can be obtained to the observation device 400 to acquire the observation information.

Further, in the present invention (Claim 13), the observation information acquisition means 161 is a signal that can acquire observation information.
A Ping command, a Traceroute command, an LMP (Link Management Protocol), IETF RFC4204, or similar packet in ICMP (Internet Control Message Protocol) is used.

  In the present invention (Claim 14), the observation information acquisition unit 161 transmits a Ping command a plurality of times, acquires a plurality of delay times, obtains an average thereof, and acquires it as observation information.

Further, according to the present invention (Claim 15), in the rank determining means 162,
The shortest communication delay time among the communication delay times recorded in the connection management information storage means 101, or the edge device with the minimum hop number of the hop count as the active edge device,
And a means for setting the edge device having the second smallest communication delay time or the second smallest hop number among the communication delay times recorded in the connection management information storage means as a spare edge device.

According to the present invention (claim 16), in the computer information storage means, a group identifier is added to the computer identification information and registered,
The observation information acquisition means 161
Computer information storage means is searched based on the identification information of the computer, and at least one computer belonging to a group is selected from the registered computers based on the group identifier, and the identification information of the selected computer is selected. And means for acquiring observation information based on the identification information of the edge device.

  The present invention (Claim 17) is a program for causing a computer to execute the function of the connection information management apparatus according to Claims 8 to 16.

  As described above, according to the present invention, when there are a plurality of edge devices in a certain computer site, the communication delay time obtained by performing communication between the edge device and the computer specified by the user in the NRM. Based on observation information such as the number of edge devices to be relayed (number of hops) and the like, it is possible to determine the current and backup from the edge device candidates and present the available edge devices to the user.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  The NRM (network resource management system) in the present invention will be described focusing on managing and providing connection information between computer sites and network sites.

  FIG. 3 shows the configuration of the NRM in one embodiment of the present invention.

  The NRM 100 shown in the figure includes a user communication unit 110, a response creation unit 120, a network communication unit 130, an edge device management unit 150, a network cooperation unit 160, a connection management information storage unit 101, a computer information storage unit 102, and an edge device information storage. Section 103 and network information storage section 104.

  The user communication unit 110 receives a connection destination candidate request with the user terminal 200 and transmits a response message to the user created by the response creation unit 120. When the connection destination candidate request is received, identification information (for example, IP address) of the computer to be communicated included in the request is extracted and stored in a memory (not shown).

  The response creation unit 120 reads information stored in the connection management information storage unit 101 and creates a response message to be returned to the user terminal 200.

  The network communication unit 130 acquires information regarding the configuration of the network from the network 300 and stores the information in the network information storage unit 104, and also collects identification information and connection information of edge devices on the network to collect the edge device information storage unit 103. In addition, the computer information of the computer site connected to each edge is collected and stored in the computer information storage unit 102. Note that when collecting such information, a Ping command, a Traceroute command, an LMP (Link Management Protocol), IETF RFC4204, or the like in ICMP (Internet Control Message Protocol) is used. Also, Telnet, TL1 (Transaction Language 1), OSPF (Open Shortest Path First), or the like may be used.

  The network cooperation unit 160 refers to the information in each storage unit and determines an edge device to be used / standby. A specific method will be described later.

  The edge device information storage unit 103 stores edge device identification information (for example, IP address) and connection information acquired via the network communication unit 130 as a routing table. The connection information includes identification information of connected edge devices and computer identification information.

  The computer information storage unit 102 stores at least an IP address of a computer and identification information similar thereto, and identification information of an edge device to which the computer is connected.

  The connection management information storage unit 101 stores the information acquired by the network cooperation unit 160, for example, in the form of a management table as shown in FIG. The management table in FIG. 4A is an example when the network configuration is as shown in FIG. 4B, for example. The management table includes the IP address of the computer 500 or similar identification information, the IP address of the current edge device or similar identification information, the communication delay time, the number of relay devices, the IP address of the first spare edge device, or the like. Each item includes identification information, a communication delay time when the spare edge device is used, and the number of relay devices (hops) when the spare edge device is used.

  The network information storage unit 104 stores information (topology information) regarding the configuration of the network 300 collected via the network communication unit 130.

  Next, an outline of the operation in the above configuration will be described.

  FIG. 5 is a sequence chart outlining operations in one embodiment of the present invention.

  Step 101) In advance, the network communication unit 130 of the NRM 100 collects network information, edge devices, and computer information using Telnet, TL1, SNMP, OSPF, BGP, PCEP, and the like.

  Step 102) The network communication unit 130 stores the collected network information in the network information storage unit 104, the edge device information in the edge information storage unit 103, and the computer information in the computer information storage unit 102.

  Step 103) The user communication unit 110 accepts a connection destination candidate request from the user terminal (PC) 200.

  Step 104) The user communication unit 110 extracts the IP address of the computer 500 at the computer site included in the connection destination candidate request and identification information similar thereto, and stores it in a memory (not shown).

  Step 105) Signal exchange is controlled between the computer 500 and the edge device 400 by processing described later in the network cooperation unit 160, and the obtained observation result is stored in the connection management information storage unit 101. Based on the information Search for connection candidates.

  Step 106) The network cooperation unit 160 refers to the observation result corresponding to the identification information of the computer to be transmitted from the connection management information storage unit 101, ranks connection candidates, and stores them in the connection management information storage unit 101. To do. Here, the ordering means that a connection destination candidate edge device is determined to be either active or spare.

  Step 107) The response creation unit 120 reads the data in the connection management information storage unit 101, generates a message in response to the user terminal 200, and transmits the connection destination candidate request source user terminal 200 via the user communication unit 110. Send to.

  Step 108) The user terminal 200 displays the result on the display device.

  Next, the operation of steps 105 and 106 will be described in detail.

  The following three methods can be considered as connection destination candidate search methods.

  (1) The network cooperation unit 160 logs in to all edge devices at a specific network site via the network communication unit 130, and transmits communication delay time from each edge device to a specific computer and a representative router at the specific computer site. Send commands (Ping / Traceroute in ICMP (Internet Control Message Protocol)) or LMP (Link Management Protocol), IETF RFC4204, etc. that can determine the number of relay edges (the minimum number of hops), and the observation results To obtain an edge device having the shortest distance or the minimum number of hops from a specific computer site, and stores it in the connection management information storage unit 101.

  FIG. 6 is a diagram (part 1) for explaining the operation of the connection destination candidate search in the embodiment of the present invention, and FIG. 7 is a flowchart (part 1) of the operation.

  Step 201) The network cooperation unit 160 extracts the IP address of the computer from the connection candidate request acquired from the user terminal 200.

  Step 202) The network cooperation unit 160 of the NRM 100 acquires the IP address of the edge device 400 stored in the edge device information storage unit 103 based on the IP address of the computer specified in Step 201, and logs in. The IP address of the computer acquired in 201 is notified. In the example of FIG. 6, it is assumed that the user has logged in to the edge device A.

  Step 203) The logged-in edge device 400 communicates with the computer 500 having the notified IP address connected to the edge device 400, such as Ping, Traceroute, LMP (Link Management Protocol), IETF RFC4204, etc. And at least one of the communication delay time and the number of relay edge devices is acquired and notified to the network cooperation unit 160. In the example of FIG. 6, it is assumed that the Ping command is transmitted from the edge device A to the computer b and the delay time is acquired.

  Step 204) The network cooperation unit 160 acquires the communication delay time notified from the edge device 400 or the number of relay edge devices (the number of hops) and stores it in the connection management information storage unit 101.

  Step 205) When the above processing is completed for all edge devices stored in the edge device information storage unit 103, the process proceeds to step 206, and when not completed, the process returns to step 202.

  Step 206) When the collected information is the communication delay time, the network cooperation unit 160 refers to the communication delay time for each edge device in the connection management information storage unit 101, and determines the edge device with the shortest time as “active”. Is determined. When the collected information is the number of relay edge devices, the edge device having the smallest number is determined as “active”. When both the communication delay time and the number of relay edge devices are collected, the edge device with the shortest communication delay time and the smallest number of relay edge devices is referred to as “active” (the nearest edge device). decide.

  Step 207) The next-ranked edge device determined as “working” in step 206 is determined as “standby”, and the working / spare edge devices and their respective communication delay times or / and the number of relay edges are determined. The information is recorded for each IP address (identification information) of the computer in the connection management information storage unit 101.

  (2) The network cooperation unit 160 logs in to the computer 500 at the computer site, and transmits the same command (Ping / Traceroute) or similar packet to the specific edge device at the specific network site from there. An observation result is acquired, a computer site having the shortest distance or the minimum number of hops from a specific edge device is obtained, and stored in the connection management information storage unit 101.

  FIG. 8 is a diagram (part 2) for explaining the operation of the connection destination candidate search in the embodiment of the present invention, and FIG. 9 is a flowchart (part 2) of the operation.

  Step 301) The network cooperation unit 160 extracts the identification information (IP address) of the computer from the connection candidate request from the user terminal 200.

  Step 302) The network cooperation unit 160 of the NRM 100 acquires the IP address of the edge device from the edge device information storage unit 103 based on the IP address of the computer specified in Step 301, logs in to the IP address of the computer, and Notify the IP address of the device.

  Step 303) The logged-in computer 500 exchanges signals such as Ping, Traceroute, LMP (Link Management Protocol), IETF RFC4204, etc. with the edge device 400, and the communication delay time, relay edge device from the edge device 400 Is acquired and notified to the network cooperation unit 160.

  Step 304) The network cooperation unit 160 acquires the communication delay time or the number of relay edge devices notified from the computer 500, and stores it in the connection management information storage unit 101.

  Step 305) When the above processing is completed for all the edge devices stored in the edge device information storage unit 103, the process proceeds to step 306. Otherwise, the process returns to step 302.

  Step 306) When the collected information is the communication delay time, the network cooperation unit 160 refers to the communication delay time for each edge device in the connection management information storage unit 101, and determines the edge device with the shortest time as “active”. Is determined. When the collected information is the number of relay edge devices, the edge device having the smallest number is determined as “active”. When both the communication delay time and the number of relay edge devices are collected, the edge device with the shortest communication delay time and the smallest number of relay edge devices is referred to as “active” (the nearest edge device). decide.

  Step 307) The next-ranked edge device determined as “working” in step 306 is determined as “standby”, and the working / spare edge devices and their respective communication delay times or / and the number of relay edges are determined. The information is recorded for each IP address (identification information) of the computer in the connection management information storage unit 101.

  (3) The network cooperation unit 160 monitors the routing table of the edge device 400 of the network site in the edge device information storage unit 103, searches for the representative router of the computer site and the address of the computer 500, The cost / metric to the computer 500 is acquired, and the computer site with the shortest distance from the specific edge device is obtained.

  In addition, although a Ping command is transmitted between the computer 500 and the edge device 400 and the communication delay time is measured, the communication delay time is likely to change, and it is difficult to determine the measurement result only once. In the network cooperation unit 160, a Ping command is transmitted a plurality of times, communication delay times for a plurality of times are acquired from the computer 500 or the edge device 400, an average value is obtained, and the average value is used as the communication delay time to store connection management information It is also possible to store in the table of the unit 101. Thereby, a more accurate communication delay time can be obtained.

  As described above, when the working / standby edge device is determined in the network cooperation unit 160 of the NRM 100, the response creation unit 120 refers to the connection management information storage unit 101, and the connection candidate request issuer user A response message for the terminal 200 is created and transferred to the user communication unit 110. Thereby, the user communication unit 110 transmits a response message to the user terminal 200.

  In the user terminal 200, the response message transmitted from the NRM 100 is displayed on a display device (not shown).

  Next, another embodiment will be described.

  In the above-described embodiment, an example in which the information of each computer is managed by the computer information storage unit 102 in the NRM 100 has been described. However, if a large number of computers are registered, computer management becomes difficult.

  Therefore, as another embodiment, a method for managing computers using group identifiers in the computer information storage unit 102 will be described.

  A group identifier for collectively identifying the same group (for example, a computer group managed by a certain university) is assigned to the identifier (IP address) of the computer and managed by the connection management information storage unit 101.

  In the computer information storage unit 102, for example, the computer identification information a and b are set as one group, and a group identifier α is assigned to each computer identification information and managed as α-a and α-b. Further, the computer identification information c and d is managed as another group by assigning a group identifier β such as β-c and β-d.

  Accordingly, the network cooperation unit 160 searches the computer information storage unit 102 based on the computer identifier extracted from the connection destination candidate request or the computer identifier acquired from the system administrator. Thereby, a group identifier corresponding to the computer identifier can be obtained. The network cooperation unit 160 searches for computer identifiers having the same group identifier, and selects several computers from the same group of computers with the same group identifier, and sends a communication delay time or hop to the selected computer. It is also possible to get a number.

  Next, an embodiment to which the present invention is applied will be described.

[First embodiment]
FIG. 10 is a diagram for explaining the first embodiment of the present invention.

  A user terminal 200 shown in the figure is used by a user who subscribes to the service, and the NRM 100 is connected to a network site of a telecommunications carrier. The computer site # 1 (for example, a university), the computer site # 2 (for example, a company) is connected to a network site.

  In the figure, when the user wants to connect the computer A of the computer site # 1 and the computer B of the computer site # 2 to the NRM 100, the user transmits a connection candidate request including the computer identification information of the computer B to the NRM 100. Steps 101 to 108 of the sequence chart shown in FIG. 5 are executed.

[Second Embodiment]
FIG. 11 is a diagram for explaining a second embodiment of the present invention.

  The user terminal 200 shown in the figure is used by the administrator of the computer site # 1, and the NRM 100 is connected to the network site of the communication carrier. The computer site # 1 (for example, a university), the computer site # 2 (For example, a company) is connected to a network site.

  In the figure, when the administrator of the computer site # 1 wants to register the computer site # 1 in the NRM 100 and requests to display the computer site # 1, in step 103 of FIG. Although the connection destination candidate request is transmitted, the same processing as in FIG. 5 can be performed by using the user terminal as a terminal for the administrator of the computer site # 1.

[Third embodiment]
FIG. 12 is a diagram for explaining a third embodiment of the present invention.

  In the figure, for example, when the administrator who manages the NRM 100 newly registers a computer site after the processing of the second embodiment is completed, the NRM 100 voluntarily / autonomously re-registers the computer site # 1. An example in which it is determined to search for an edge device that can be connected / connected is shown. In this case, the processing of the connection destination candidate request (step 103) shown in FIG. 5 is not executed, but as shown in FIG. 13, the NRM 100 communicates with the network site edge device such as SNMP Polling / Trap as shown in FIG. By exchanging information using the protocol, processing for acquiring observation information of the edge device is performed, and processing of step 104, step 105, and step 107 is performed. However, in step 104, information on computers belonging to the computer site # 1 input by the administrator is used instead of the connection destination candidate request.

  In addition, the operations of the user communication unit 110, the response creation unit 120, the network cooperation unit 160, and the network communication unit 130 of the NRM 100 in the above embodiment are constructed as a program, and are installed and executed on a computer used as the NRM. Alternatively, it can be distributed via a network.

  Further, the constructed program can be stored in a portable storage medium such as a hard disk, a flexible disk, or a CD-ROM, and can be installed or distributed in a computer.

  The present invention is not limited to the above-described embodiment, and various modifications and applications can be made within the scope of the claims.

  The present invention is applicable to a technique for managing and providing connection information between a computer site and a network site.

It is a figure for demonstrating the principle of this invention. It is a principle block diagram of this invention. It is a block diagram of NRM in one embodiment of the present invention. It is an example of the management table of the connection management information storage part in one embodiment of this invention. It is a sequence chart of the outline | summary of operation | movement in one embodiment of this invention. It is FIG. (1) for demonstrating operation | movement of the connection destination candidate search in one embodiment of this invention. It is a flowchart (the 1) of operation | movement of a connection destination candidate search in one embodiment of this invention. It is FIG. (2) for demonstrating the operation | movement of a connection destination candidate search in one embodiment of this invention. It is a flowchart (the 2) of the operation | movement of a connection destination candidate search in one embodiment of this invention. It is a figure for demonstrating the 1st Example of this invention. It is a figure for demonstrating the 2nd Example of this invention. It is a figure for demonstrating the 3rd Example of this invention. It is a sequence chart of the operation | movement in the 3rd Example of this invention. It is a figure which shows the structure of a computer site and a network site.

Explanation of symbols

100 NRM
101 Connection Management Information Storage Unit, Connection Management Information Storage Unit 102 Computer Information Storage Unit 103 Edge Device Information Storage Unit 104 Network Information Storage Unit 110 User Communication Unit 111 Request Reception Unit 112 Notification Unit 120 Response Creation Unit 130 Network Communication Unit 160 Network Cooperation Unit 161 Observation information acquisition means 162 Order determination means 200 User terminal 300 Network 400 Edge device 500 Computer (PC)

Claims (17)

A connection information management method for managing current and backup of available edge devices when a plurality of edge devices exist at a computer site,
In a computer used as a network resource management system (NRM), when an administrator who manages the NRM newly registers a computer site,
Observed by acquiring the identification information of the edge device collected from the network in advance, and communicating between the computer and the edge device specified based on the input identification information of the computer and the identification information of the edge device. Obtaining observation information and storing it in the connection management information storage means,
Based on the observation information of the connection management information storage means, a working / spare edge device is determined and stored in the connection management information storage means;
A notification step of notifying the manager's device of the working / spare edge device;
The connection information management method characterized by performing. A connection information management method for managing current and backup of available edge devices when a plurality of edge devices exist at a computer site,
In a computer used as a network resource management system (NRM),
A request receiving step of receiving a connection destination candidate request including identification information of a computer to be communicated from the user terminal;
Acquire edge device identification information collected from the network in advance and communicate between the computer and the edge device specified based on the computer identification information extracted from the connection destination candidate request and the edge device identification information. The observation information acquisition step of acquiring the observation information observed by performing and storing in the connection management information storage means,
Based on the observation information of the connection information storage means, determine a working / spare edge device and store it in the connection management information storage means;
A notification step of notifying the working / spare edge device to the user terminal of the connection destination candidate request;
The connection information management method characterized by performing. In the observation information acquisition step,
Log in to the edge device based on the identification information of the edge device,
The connection information management method according to claim 1 or 2, wherein the observation information is acquired by causing the computer to transmit a signal from which the observation information can be acquired based on the identification information of the computer. In the observation information acquisition step,
Log in to the computer based on the computer identification information,
The connection information management method according to claim 1 or 2, wherein the observation information is acquired by causing the edge device to transmit a signal from which the observation information can be acquired based on the identification information of the edge device. As a signal from which the observation information can be acquired,
5. The connection information management method according to claim 3, wherein a ping command, a traceroute command, an LMP (Link Management Protocol), IETF RFC4204, or a similar packet in ICMP (Internet Control Message Protocol) is used. The connection information management method according to claim 5, wherein the Ping command is transmitted a plurality of times, a plurality of delay times are acquired, an average thereof is obtained, and acquired as the observation information. In the ranking determination step,
The shortest communication delay time among the communication delay times recorded in the connection management information storage means, or the edge device of the minimum hop number of the hop number as an active edge device,
3. The edge device having the second smallest communication delay time or the second smallest hop number among the communication delay times recorded in the connection management information storage means is used as a spare edge device. The connection information management method described. In the computer information storage means, the computer identification information is added and registered with a group identifier,
In the observation information acquisition step,
Search the computer information storage means based on the identification information of the computer, select at least one computer belonging to a group based on the group identifier from among the computers registered in the computer information storage means, The connection information management method according to claim 1, wherein observation information is acquired based on the selected identification information of the computer and the identification information of the edge device. In a certain computer site, when there are a plurality of edge devices, it is a connection information management device that manages the active and standby of the available edge devices,
Edge information storage means for storing edge device connection information collected from the network for each identification information;
Computer information storage means for storing computer information collected from computer sites for each identification information;
Observed by acquiring identification information of the edge device from the edge information storage means, and performing communication between the computer and the edge device specified based on the input identification information of the computer and the identification information of the edge device. Obtaining observation information and storing it in the connection management information storage means;
Based on the observation information of the connection management information storage means, a working / reserve edge device is determined and stored in the connection management information storage means.
Notification means for notifying the device of the manager of the working / spare edge device;
A connection information management device comprising: In a certain computer site, when there are a plurality of edge devices, it is a connection information management device that manages the active and standby of the available edge devices,
Edge information storage means for storing edge device connection information collected from the network for each identification information;
Computer information storage means for storing computer information collected from computer sites for each identification information;
Request receiving means for receiving a connection destination candidate request including identification information of a computer to be communicated from the user terminal;
Acquire edge device identification information from the edge information storage means, and communicate between the computer and the edge device identified based on the computer identification information extracted from the connection destination candidate request and the edge device identification information The observation information acquisition means for acquiring observation information observed by performing and storing in the connection management information storage means,
Based on the observation information stored in the connection management information storage means, a working / spare edge device is determined and stored in the connection management information storage means;
A notification means for notifying the user terminal of the connection destination candidate request of the working / backup edge device;
A connection information management device comprising: The observation information acquisition means includes
Log in to the edge device based on the identification information of the edge device, and acquire observation information by causing the computer to transmit a signal from which the observation information can be acquired, based on the identification information of the computer. The connection information management device according to claim 9 or 10. The observation information acquisition means includes
Logging in to the computer based on the identification information of the computer, and acquiring observation information by causing the edge device to transmit a signal from which the observation information can be acquired based on the identification information of the edge device. Item 9. The connection information management device according to Item 9 or 10. As a signal from which the observation information can be acquired,
13. The connection information management apparatus according to claim 11 or 12, wherein a Ping command, a Traceroute command, an LMP (Link Management Protocol), IETF RFC4204, or similar packet in ICMP (Internet Control Message Protocol) is used. The connection information management device according to claim 12, wherein the Ping command is transmitted a plurality of times, a plurality of delay times are acquired, an average thereof is obtained, and acquired as the observation information. The rank determining means includes
The shortest communication delay time among the communication delay times recorded in the connection management information storage means, or the edge device of the minimum hop number of the hop number as an active edge device,
The communication device includes: a second edge of the communication delay time recorded in the connection management information storage means that is the second smallest or the second smallest hop number as a spare edge device. The connection information management device according to 9 or 10. In the computer information storage means, a computer identification information is added and registered with a group identifier,
The observation information acquisition means includes
The computer information storage means is searched based on the identification information of the computer, and at least one computer belonging to a group is selected from the registered computers based on the group identifier, and the selected computer The connection information management device according to claim 9 or 10, comprising means for acquiring observation information based on identification information and identification information of the edge device. On the computer,
A program for executing the function of the connection information management apparatus according to claim 9.

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