JP3601281B2 - Communication transmission path allocation method and system - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention provides a communication transmission path for selectively allocating an end-to-end transmission path from a communication device group to a designated node group to a node group and a communication device group connected via at least one communication network. Regarding the assignment method.
[0002]
[Prior art]
2. Description of the Related Art In recent years, with an increase in awareness of disaster countermeasures due to a wide-area disaster such as a great earthquake and the development of networks, disaster countermeasures for computer systems such as adoption of backup lines via various communication networks have been taken in various fields. For example, in a computer system in which a node group in a computer center and a communication terminal group in a remote place are connected by a communication transmission line, the following disaster countermeasures have become widespread. That is, in order to back up the user's system in response to an actual disaster case, a communication terminal group at a remote location and a node group at a computer center can communicate with each other through various communication interfaces. The transmission paths are grouped in units of disaster-affected users or in units of assumed disaster-affected areas, and communication transmission paths are secured in such a manner that the groups are switched when necessary, thereby backing up the computer system. The assignment of communication transmission lines in such a computer system is provided, for example, as disclosed in Japanese Patent Publication No. 6-24365 for grouping nodes and switching the communication transmission lines for each group for operation. This is realized by performing a switching operation by personnel using a centralized management device.
[0003]
[Problems to be solved by the invention]
As described above, conventionally, upon receiving a report from a disaster-affected user, personnel have operated a centralized management device to switch the terminal transmission path. For this reason, switching of the communication transmission path requires man-hours and time. Further, a plurality of end-to-end communication transmission line groups desired by the disaster victim user are created based on the assumed disaster pattern, and the degree of freedom of switching the communication transmission line group is increased. There is a problem that it is difficult to quickly switch and assign a communication transmission path to a group and a communication device group.
[0004]
Therefore, an object of the present invention is to eliminate the above-mentioned disadvantages of the prior art, perform switching of a terminal transmission line from a communication device in a unified manner, and have a high degree of freedom in switching a communication transmission line group, and perform rapid switching. It is an object of the present invention to realize a method of allocating a communication transmission path that can be performed.
[0005]
[Means for Solving the Problems]
To achieve the above object, according to the present invention, a plurality of communication devices connected to a communication network, a line switch connected to the plurality of communication devices via the communication network, and a terminal transmission line connected to the line switch A switching device, a plurality of nodes connected to the terminal transmission line switching device, and a plurality of communication devices connected to the line switch and the terminal transmission line switching device and controlling the line switch and the terminal transmission line switching device. In a network system having a control device for allocating a communication transmission path between the communication device and a node, the transmission device belongs to each group corresponding to a transmission line group allocated according to a mode of connection between the communication device and the node. Group information necessary for securing an end-to-end communication transmission path between all nodes and communication devices is registered in advance. In a preferred aspect, the group information includes a call origination DB for registering a communication device having a right of use registered in advance by the communication device based on the caller ID of the communication device that made the call, and communication with information on a route of a terminal transmission path to be assigned. A resource allocation DB in which attribute information is registered in advance.
[0006]
When a call is issued with sub-address information for designating a transmission line group from any of the communication devices, the control device responds to the call from the communication device and performs communication to be assigned based on the sub-address information. Select a transmission line group. Then, information necessary for securing an end-to-end communication transmission path between the nodes belonging to the group and the communication device is extracted from the group information, and the terminal transmission line switching device is instructed to allocate the terminal transmission line and the line is transmitted. A terminal transmission path from the switch to the assignment target node is secured with a communication attribute according to the extracted information, and specified by connecting from the line switch to the assignment target communication device via a previously registered circuit network. End-to-end communication transmission path between the nodes belonging to the group and the communication device.
[0007]
Through a series of these processes, the user can obtain an end-to-end communication transmission path from a node group to all the communication devices to which the user has requested a line assignment based on an arbitrary grouped communication transmission path provision pattern. Can be quickly and centrally selected and secured from the communication terminal.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.
[0009]
FIG. 1 is a system configuration diagram of a computer system according to an embodiment of the present invention. In the present embodiment, a specific form of securing a communication transmission line in a disaster backup operation of an automatic teller machine (hereinafter, abbreviated as ATM) will be described using an online system of a bank as an example.
[0010]
Reference numerals 70, 80, 90, and 100 denote communication networks, which are an ISDN basic service network, an ISDN primary service network, an analog public line network, and a mobile phone network, respectively. ATMs 10 to 30 are connected to the ISDN basic service network 70 via a terminal adapter (hereinafter abbreviated as TA) (not shown). Reference numeral 40 denotes a mobile phone having a caller ID notification function enabled, 50 denotes an analog public telephone that receives a caller ID notification service from a public line network 90, and 60 denotes a TA connected to an ISDN primary service network 80 via a TA. ATM. These terminal devices such as ATMs and mobile phones are generally called communication devices. In the present embodiment, only six communication devices from 10 to 60 are shown, but actually more communication devices such as terminal devices, server devices and telephones may exist. Needless to say.
[0011]
Reference numeral 110 denotes a line switch. In this embodiment, a communication unit for communicating with the ISDN basic service network 70, the ISDN primary service network 80, the analog public telephone network 90, and the mobile telephone network 100 is mounted and used in these line networks. In response to an instruction from the control device 120, the line interface to 24, V.I. 35, X. 21 is provided. In addition, the line switch 110 also has an incoming port switching function of receiving a call to a designated DTE-side physical port of the device in response to an instruction from the control device 120, and an incoming call acceptance / rejection function for the network.
[0012]
The control device 120 is connected to the line switch 110 and the terminal transmission line switching device 180, and controls these. The connection between the control device 120 and the line switching switch 110 and the terminal transmission line switching device 180 is a local connection that does not go through a line network, but it goes without saying that a connection via a line network is possible. Absent.
[0013]
Reference numeral 130 denotes an outgoing / incoming call permission database (outgoing / incoming call permission DB) connected to the control device 120, which is a database having an outgoing / incoming call permission table. Reference numeral 140 denotes a resource group database (resource group DB) connected to the control device 120, which is a database having a resource group table. Reference numeral 150 denotes a resource allocation database (resource allocation DB) connected to the control device 120, and stores a resource allocation table.
[0014]
Reference numeral 160 denotes a storage device, which is an external storage device for storing an assignment log at the time of assignment to a user. 170 is a spool.
[0015]
Reference numeral 180 denotes a terminal transmission line switching device which switches the terminal transmission line between the DCE side port and the DTE side port in accordance with the communication attribute and the connection path designated by the control device 120 according to the instruction of the control device 120. 190, 200, and 210 correspond to V.V. X.24 terminal transmission path; Terminal transmission path of V.21 interface; This is a terminal transmission line of 35 interfaces.
[0016]
220 to 270 are nodes in general. In the present embodiment, 220 to 240 are communication control devices, and 250 to 270 are routers. In this embodiment, only six nodes are shown, but more or less nodes may actually exist.
[0017]
Reference numeral 280 denotes a backup host computer (referred to as a backup host), which is connected to the control device 120. The backup host 280 operates thereon and has an application program 290 for operating the bank online system. In the present embodiment, a designated communication device among the communication devices 10 to 60 is used as an application program 290 by using a terminal transmission line and a line network assigned according to an instruction from the control device 120, and a bank in an ATM is used. A program (OLTP) for operating an online system is used. In the present embodiment, the application program 290 that runs on the backup host 280 is OLTP. However, in actuality, there may be other application programs.
[0018]
FIG. 5 is a table configuration diagram showing an example of the outgoing / incoming call permission table stored in the outgoing / incoming call permission DB 130. The outgoing / incoming call permission table contains a management number for each communication device connected via the line network in the present system. 131, a network type 132 that is a type of a line network used for connection, a line number 133 of the communication device, a user name 134, and a DTE-side port name of the line switch 110 to be connected.
[0019]
FIG. 6 is a table configuration diagram showing an example of the resource group table stored in the resource group DB 140.
[0020]
The resource group table includes, for each communication device of a user who uses this system, a user name 141, a sub address of the communication device, an assigned resource group name 143 for identifying a transmission path group provided by the backup center, and group member management. No. 144 is held.
[0021]
FIG. 7 is a table configuration diagram showing an example of the resource allocation table stored in the resource allocation DB 150.
[0022]
The resource allocation table contains management No. as information on terminal transmission line switching and communication attributes. 151, the DTE port No. of the terminal transmission path switching device 180 152, DCE port No. 153, and a communication speed 154 and a communication mode 155 as communication attributes.
[0023]
FIGS. 2, 3, and 4 are flowcharts showing the flow of the communication transmission path assignment process in the present system. Here, the description will be made on the assumption that the ATM 10 requests the use of the backup host 280 as a communication device.
[0024]
First, the ATM 10 assigns a sub-address by the ISDN basic service network 70 and makes a call (step 301). As a result, an incoming call request is issued from the ISDN basic service network 70 to the line switch 110. At this time, the ISDN basic service network 70 notifies the line switch 110 of the line number of the ATM 10 serving as a caller identifier (calling ID) for identifying the caller and the calling subaddress given at the time of calling, together with the incoming call request. (Step 302).
[0025]
When receiving the incoming call request from the ISDN basic service network 70, the line switch 110 notifies the control device 120 of the calling ID and the calling subaddress notified together with the request. (Step 303)
The control device 120 searches the call-in / call-out permission DB 130 and checks whether there is a record whose line number registered in the line number 133 of the communication device in the call-in / out call permission table matches the call-out ID received from the line switch 110 ( Step 304). If there is no corresponding record, it is determined that the caller does not have use authority, and the process proceeds to step 501. If the corresponding record exists, it is determined that the incoming call can be permitted, and the process proceeds to step 305.
[0026]
In step 305, the user name to which the calling communication device belongs is extracted from the user name 134 of the record found in step 304. Subsequently, the resource group DB 140 is searched based on the extracted user name, and from the record of the resource group table, the sub address in which the user name of the user name 141 matches and the sub address which matches the sub address notified from the communication device is set as the sub address 142. It is checked whether a registered record exists (step 306). If there is no corresponding record, the process proceeds to step 501, and if there is a corresponding record, it is determined that the communication transmission channel assignment request is instructed from the ATM 10, and the process proceeds to step 307.
[0027]
In step 307, the control device 120 determines the group member management number of the corresponding record found in step 306. 144 registered in the group member management number identifying the communication device of the affected user to be communicated. Is extracted. Then, the extracted group member management No. Is stored in the spool 170 (step 308). Further, the control device 120 causes the group member management No. extracted in step 307 to be stored. The resource allocation DB 150 is searched based on. Then, from the resource allocation table, the management No. No. 151 set to the management No. Are extracted (step 309). Thereafter, the terminal transmission path switching device 180 is notified of the information on the terminal transmission path switching and the communication attribute held in the extracted record (step 310). The terminal transmission line switching device 180 connects the DTE side port and the DCE side port according to the information on the terminal transmission line switching and the communication attribute received from the control device 120 (step 311).
[0028]
Control device 120 instructs line switch 110 to reject the incoming call, and rejects the incoming call request received from the line network in step 302 by line switch 110 (step 312).
[0029]
Subsequently, the control device 120 transmits the group member management No. stored in the spool 170. The search is made in the outgoing / incoming call permission DB 130 based on the management No. 131 extracts a matching record. Then, it notifies the line switch 110 of the line number of the backup destination registered in the line number 133 of the extracted record, and instructs a call to the backup destination communication device (step 313). The line switch 110 receives the notification from the control device 120 and makes a call to the backup destination communication device.
[0030]
Further, control device 120 instructs backup host computer 280 to start application program 290 (step 314). Then, the calling ID received from the line network, the assigned resource group name, and the current time are recorded in the storage device 160 (step 315).
[0031]
When the backup host computer 280 activates the application program 290 according to the instruction from the control device 120, the backup host computer 280 instructs the communication device to activate the online service via the selected node among the nodes 220 to 270 according to the application program 290. (Step 316). As a result, the backup system using the communication device belonging to the resource group indicated by the sub-address indicated by the communication device 10 operates, and the communication transmission path assignment process ends (step 317).
[0032]
On the other hand, if the determination results in steps 304 and 306 are negative, the process proceeds to step 501, and in step 501, control device 120 instructs line switch 110 to reject the call. In response, line switch 110 rejects the incoming call from the line network, disconnects communication between line switch 110 and the caller's communication device, and ends the process (step 502).
[0033]
According to the embodiment described above, in particular, in the case where a backup center performs a backup of an online system in the event of a user's disaster, a communication transmission path to a network device necessary for the backup is established based on an assumed disaster case. The backup center, which needs to be provided to the user promptly and selectively according to the actual disaster situation, uses the end-to-end communication transmission path from the network equipment at the center to the communication device of the disaster-affected user to communicate with the user. It can be assigned automatically and quickly from the device.
[0034]
In the present embodiment, the information transmitted by the communication device is described as the subaddress in the ISDN network, but a push number in a public analog telephone network, a push number in a mobile telephone network, and the like can be applied.
[0035]
【The invention's effect】
According to the present invention, a predefined communication transmission path between a communication device group and a node group which are located at a remote place and connected via a network can be freely selected based on information input by a user from a communication device and a calling ID. The transmission line selected by use of the communication device by calling from one communication device belonging to the group is centrally allocated from the communication device to the end to the node, and the backup communication is quickly performed according to the disaster situation. A transmission path can be secured.
[Brief description of the drawings]
FIG. 1 is a system configuration block diagram of a computer system according to an embodiment of the present invention.
FIG. 2 is a flowchart illustrating a procedure of a communication transmission path assignment process.
FIG. 3 is a flowchart showing a procedure of a communication transmission path assignment process.
FIG. 4 is a flowchart showing a procedure of a communication transmission path assignment process.
FIG. 5 is a table configuration diagram of an outgoing / incoming call permission table stored on the outgoing / incoming call permission DB1.
FIG. 6 is a table configuration diagram of a resource group table stored on a resource group DB.
FIG. 7 is a table configuration diagram of a resource assignment table stored on a resource assignment DB.
[Explanation of symbols]
10 to 60 communication device 70 to 100 communication network 110 line switch 120 control device 130 outgoing / incoming call permission DB
140 Resource Group DB
150 Resource allocation DB
160 Storage device 170 Spool 180 Terminal transmission line switching device 190-210 Terminal transmission line 220-240 Communication control device 250-270 Router 280 Backup host computer 290 Application program

Claims (4)

A communication transmission path allocation method in a control device that is connected to a backup host and a plurality of communication devices and controls the backup host to communicate with the plurality of communication devices ,
The control device includes:
Each of the plurality of communication devices belongs and stores, for each group of communication transmission lines, group information necessary for securing a communication transmission line in the group, including source identification information and communication attributes of the communication devices belonging to the group. Remember in the device,
Receiving source identification information transmitted from a communication device via a communication network including the communication transmission path ,
Search whether the received sender identification information is stored ,
When the search result is stored , the communication between the backup host and a predetermined communication device is performed by allocating a communication transmission path with a communication attribute according to the group information corresponding to the received source identification information. A communication transmission path allocating method characterized by instructing. The communication transmission path allocating method according to claim 1,
The storage device stores a communication speed and a communication mode as the communication attribute. In a communication control device that is connected to a backup host and a plurality of communication devices, and controls the backup host to communicate with the plurality of communication devices,
Each of the plurality of communication devices belongs, and stores, for each group of communication transmission lines, group information necessary for securing a communication transmission line in the group, including transmission source identification information and communication attributes of the communication devices belonging to the group. Storage means for
Receiving means for receiving source identification information transmitted from a communication device via a communication network including the communication transmission path,
Search means for searching whether the received sender identification information is stored,
When the search result is stored, the communication between the backup host and a predetermined communication device is performed by allocating a communication transmission path with a communication attribute according to the group information corresponding to the received source identification information. A communication control device, comprising: instruction means for instructing. The communication control device according to claim 3,
The communication control device, wherein the storage unit stores a communication speed and a communication form as the communication attribute.

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