JPH09305502A - Association managing system for file transfer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a managing system for easily dealing with the fault of network load distribution control, reserve line switching operation or degenerate operation in a file transfer system. SOLUTION: Plural associations corresponding to a system A are divided into association groups AG1-AG4 for each attribute of a physical line or the like. The AG4 is an association group for fault recovery. Thus, since the plural associations are divided into groups on certain conditions, the transfer load control of respective association groups, the operation of switching to the reserve association group at the time of association group fault or the degenerate of association group can be easily dealt with.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a file transfer system, and more particularly to an association management system for managing a plurality of associations in an application program in a file transfer system for simultaneously transferring a plurality of files.

[0002]

2. Description of the Related Art Conventionally, a plurality of associations are made to correspond to one transfer partner for transferring a plurality of files at the same time, and they are logically managed without being aware of the physical configuration of the association. But with this traditional method,
Although it is possible to manage the usage status of each association, it is difficult to deal with network failures because the network resources (resources) such as physical lines cannot be dealt with, and it is difficult to optimally distribute the network load. Have

As a conventional technique related to this type of association, for example, Japanese Patent Laid-Open No. 6-266664 discloses multiplexing for association when transaction processing is performed using the OSI / TP protocol by International Organization for Standardization (ISO). In order to solve the problem that efficiency is lowered due to waiting for the second and subsequent requests when multiple transaction processing requests occur simultaneously, the usage status of the application is shown. An association multiplexing method has been proposed in which a management table for storing application information is provided, and the management table groups and manages associations for each type of application. Further, Japanese Patent Laid-Open No. 7-99527 discloses that
A management method has been proposed which facilitates newly established association by a user AP (application program) and association management reestablished by recovery processing due to a data transfer error.

However, the reality is that no association management method has been proposed which implements load balancing efficiency and failure coexistence in a coexisting manner.

[0005]

As described above, the conventional association management system has a problem that the network load cannot be effectively distributed.

The reason is that in the conventional management system,
Without being aware of the physical structure of the association,
Since it is only managed logically and does not correspond to network resources such as physical lines, it is possible to understand the network usage status, the network load status,
Also, the management cannot be performed, and the load cannot be efficiently distributed.

Further, the conventional association management system has a problem that it is not easy to deal with a network failure.

The reason for this is that, in the conventional system, the logical management is performed without being aware of the physical configuration of the association as described above, and the correspondence with network resources such as physical lines is not possible. Since it is not taken, it is not possible to grasp and manage the network fault condition, and thus it is not easy to grasp the fault condition such as a physical fault occurrence point, and it is not possible to easily avoid the fault and deal with the recovery.

Therefore, the present invention has been made in view of the above circumstances, and an object thereof is not only to manage the use status of each association, but also to perform various grouping according to attributes of a physical line or the like. The purpose of the present invention is to provide a method for realizing network management such as network load balancing by associating with network resources, enabling to deal with network failure.

[0010]

In order to achieve the above object, the association management system of the present invention associates a plurality of associations with one transfer partner, and groups them based on the physical configuration such as attributes of the association. , A group of associations is managed in association with the transfer partner, whereby the network can be managed in association units and association group units.

Further, in the present invention, an association group having a low usage rate, that is, a light load is selected from the association groups corresponding to the same transfer partner,
It is characterized in that an association in a “transferable” state is selected and transferred from the association group.

Further, in the present invention, preferably,
When a certain association group fails due to a network failure, it includes means for switching to the standby association group for operation, and means for performing degenerate operation for the association group when the standby association group is not used.

According to the present invention, a plurality of associations are grouped according to the attributes of the physical line or the like (type of line to transfer partner, transmission method, transmission rate, etc.) and managed as a group of associations. It is possible to manage the associations physically rather than logically, and it is possible to recognize the load status such as the usage rate of each association group.

For this reason, load balancing control such as transfer using an association group having a light load or an association in the "transferable" state in the association group is possible, and a failure may occur in the association group for some reason. When it occurs, the switching operation to the spare association group is performed, and the response processing at the time of a network failure such as the degenerate operation when the spare association group does not exist can be efficiently performed.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a diagram for describing an embodiment of the present invention.

Transfer system 2 from own system 100
File transfer is performed to the systems A and B of 00.

The associations corresponding to the transfer partner system A are 11, 12, 21, 22, 31, 32,
Association groups AG1, AG2, AG3, and AG4 are formed by grouping these associations for each physical line. AG
1 is 11 and 12 associations, AG2 is 21 and 2
2 associations, AG3 corresponds to 31 and 32 associations, and AG4 corresponds to 41 and 42 associations. However, the association group AG4 is a standby association group for recovery at the time of failure. Also,
The associations corresponding to the transfer destination system B consist of 51, 52, 61, 62, 71, 72, and these associations are grouped (grouped) for each physical line into the association groups BG5, BG.
6 and BG7. BG5 has 51, 52 associations, BG6 has 61, 62 associations, BG7
Are associated with 71 and 72 associations.

In the own system 100, the application program (AP) 101 makes a file transfer request to the transfer partner systems A and B to the file transfer system 102.

The file transfer system 102 includes the AP 10
In response to the request from 1, the group of associations actually used for the transfer, and the association in the “transferable” state are selected from the group of associations, and the file is transferred.

Next, the operation of the embodiment of the present invention will be described with reference to FIG.

When a transfer request is issued from the AP 101 of the own system 100 to the transfer partner system A, the association group corresponding to the transfer partner system A, AG
Usage rate of 1, AG2, AG3, AG4 is 10%, 20
The association group AG1 with the lowest usage rate among%, 30, and 0% is selected.

Here, the association group AG4 having a usage rate of 0% is used as a backup (standby line) and is reserved for switching the failure association group when another association group has a failure or the like, and is selected. do not do.

Then, the selected association group A
The association in the "transferable" state is selected in G1, and the file is transferred to the transfer partner system A.

Here, 1 of the association group AG1
In 1 and 12, select the one in the "transferable" state. When the associations 11 and 12 or both associations are in the "transferable" state, they are used in order from the top.

If the association in the association group AG1 fails for some reason and the file transfer cannot be continued, the unused spare association group AG4 is switched to perform the file transfer. Switching control is performed.

Then, even for the transfer which is being requested to the faulty association group, the transfer is made by requesting the spare association group AG4.

If the spare association group does not exist, the transferable associations of the association group AG1 are grouped into the association group AG2 and the degenerate operation is performed.

For example, when the association 11 of the association group AG1 fails, the transfer of the association group AG1 is transferred to the backup association group AG.
Switch to 4 and continue the transfer. Here, when the preliminary association group AG4 has already been used,
The association 12 having no failure is grouped again into the association group AG2, the degenerate operation is performed, and the file transfer is continued.

As described above, in the embodiment of the present invention, in the case where a plurality of associations are connected to the transfer destination and are multiplexed, for each association,
Since the transfer status can be grasped and managed, the load distribution control of the transfer can be performed, the transfer according to the transfer status can be efficiently performed, and the network can be efficiently used.

Further, as a measure against a failure, the switching operation to the spare association group and the degenerate operation can be easily performed.

Next, a second embodiment of the present invention will be described with reference to FIG. FIG. 2 is a diagram showing the configuration of the second exemplary embodiment of the present invention.

With reference to FIG. 2, the second embodiment of the present invention is configured to group a plurality of association groups according to conditions such as the multiplicity of each association group and to perform transfer. .

The associations corresponding to the system A of the transfer partner system 200 are 111 and 11
2, 113, 121, 122, 123, 131, 13
2, 133, 121, 211, 212, 213, 22
There are 1, 222, 223, 231, 232, 233.

These associations are grouped according to conditions such as attributes, and the second association group AG11, A
G12 and AG13.

As shown in FIG. 2, the associations 111, 112 and 113 correspond to the AG11, the associations 121, 122 and 123 correspond to the AG12,
The AG 13 has associations 131, 132, 133.
Is supported. Then, the associations 211, 212, and 213 correspond to the AG21, the associations 221, 222, and 223 correspond to the AG22, and the AG2
Assume that the associations 231, 232, and 233 correspond to 3.

Further, AG11, AG12, AG1
3, AG21, AG22, AG23 are grouped under conditions such as multiplicity and the like, and the first association group AG1, AG
Let it be 2. In the first association group AG1, the second association groups AG11, AG12, AG13 are
AG21, AG22, and AG23 correspond to G2.

In the own system 100, when the AP 101 issues a transfer request to the system A of the transfer partner system 200, first, the first association group AG1,
The first association group having a low usage rate is selected from AG2. Here, AG1 with a trial ratio of 10% is selected.

Further, the second association group AG1
A second association group having a low usage rate is selected from among 1, AG12, and AG13. Here, the second association group AG11 is selected.

Then, the association in the "transferable" state is selected from among the physical lines 111, 112, 113 corresponding to the AG 11 and the transfer is performed.

In the first embodiment, the grouping is performed in one step, but in this case, two-step grouping is performed.

As described above, the grouping can be performed over a plurality of stages (hierarchies), and by increasing the grouping, network management and load distribution during network transfer can be efficiently performed. Further, it is expected that degenerate operation at the time of failure can be performed while suppressing an increase in load.

[0042]

As described above, according to the present invention,
By grouping physical lines etc. with a certain standard,
Since network resources such as physical lines can be managed,
It is possible to manage and ascertain the usage status of each association and association group, which has the effect of enabling efficient network load distribution.

Further, according to the present invention, since it becomes possible to manage the network resource, it becomes easy to grasp the failure status such as the physical failure occurrence point, and the switching operation at the time of the network failure and the degeneration of the association group. By making it possible, there is an effect that it is easy to deal with a network failure, and maintainability and reliability are improved.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of a first exemplary embodiment of the present invention.

FIG. 2 is a diagram illustrating a configuration of a second exemplary embodiment of the present invention.

[Explanation of symbols]

11, 12, 21, 22, 31, 32, 41, 42, 5
1, 52, 61, 62, 71, 72 Association 100 Own system 101 Application program 102 File transfer system 200 Transfer partner system AG1 to AG4, BG5 to BG7 Association group

Claims (5)

[Claims] 1. A plurality of associations are made to correspond to one transfer partner, grouped based on a physical configuration such as an attribute of the association, and managed in association with the transfer partner as a group of associations.
This is an association management method that allows the network to be managed in association units and association groups. 2. An association group with a light load is selected from the association groups corresponding to the same transfer partner, and an association in a transfer-enabled state is selected from the association groups for network transfer. The association management method according to claim 1. 3. The association management method according to claim 1, wherein a predetermined association group among a plurality of association groups is secured as a protection line for switching at the time of failure. 4. The association management system according to claim 1, wherein the association group has a hierarchical structure of a plurality of stages. 5. In a system for simultaneously transferring a plurality of files, a plurality of associations are made to correspond to one transfer partner, and the plurality of associations are grouped in consideration of a physical configuration such as an attribute of the association. By managing the network as a group, the transfer load of the network can be managed, the usage status of the line can be grasped, and the failure can be grasped in association units and association group units, thereby making it possible to freely control the transfer load and to prevent network failures. The association management method is characterized in that it is possible to cope with a failure due to a switching operation to a protection line and / or a degeneration operation at any time.