JP2003289303A - Method of managing log information - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily search a host device capable of storing log information out of a plurality of host devices and to store the log information in the searched host device in a communication device having the log information to be stored in the host device. <P>SOLUTION: A plurality of host devices for storing the log information of the communication device are installed, and which host device is capable of storing the log information is judged out of the host devices. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for managing log information in a communication device, and more particularly, in a communication device having log information to be saved in the host device, a plurality of host devices capable of saving the log information. The present invention relates to a log information management method capable of easily searching from the above and storing the log information in the searched host device.

[0002]

2. Description of the Related Art Conventionally, in a network system in which a plurality of communication devices are connected to a host device by a communication line, log information of the communication devices is individually accumulated and managed on the side of each communication device. At the time of occurrence, log information was individually output from each communication device as needed and used to investigate the cause of the failure.

Therefore, since the log information of the individual communication devices connected to the host device has not been centrally managed in a centralized manner, the log information for each communication device is centrally managed and the log information is stored. On the basis of this, it was not possible to detect failures in the entire system and each communication device in advance and prevent failures.

In order to cope with such a problem, for example, in the invention described in Japanese Patent Application No. 5-335675, log information that serves as a basis for investigating the history of a communication device and the cause of a failure is simply written. Not only is it held by the communication device side, but the log information is collected and centrally managed by the host device via the network, so that the status of each communication device can be understood in a centralized manner, and the system as a whole or each communication device error In advance, it was possible to prevent problems by applying appropriate processing promptly.

[0005]

However, in the above-described conventional invention, the log information from each communication device is centrally stored in the host device. Here, since the log information storage area of the host device is finite, when storing a large amount of log information, the log information storage area of the host device becomes full and all log information is saved. There was a problem that it would be impossible to keep it.

There is also a problem that log information cannot be stored when a failure occurs in the host device.

[0007]

In order to solve the above problems, in the log information management method of the present invention, one or more communication devices and two or more host devices for managing log information are connected to each other. A method for managing log information in a network, comprising: a search notification for transmitting a host search broadcast notification signal to the two or more host devices in a communication device that has issued a log information transmission request. A step of transmitting a host search response signal to the communication device in the host device that has received the host search broadcast notification signal, and a log of the communication device that has received the host search response signal A log information transmitting step of transmitting the log information to the target host device that has determined that the information can be stored, and receiving the log information. In serial host device, characterized in that it and a step of storing the log information.

By adopting such a configuration, even when a failure occurs in a certain host device, a host search response signal is not transmitted from the failed host device, so that the communication device cannot store the log information. Can determine possible host devices. Therefore, the log information can be sent to a normal host device other than the host device, and the host device can store all the log information.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to FIGS. 1 and 2.

FIG. 1 is a block diagram showing a connection configuration example of the communication devices 1 to 3 and the host devices 4 to 5 to which the log management system of the present invention is applied. Note that FIG. 1 shows a configuration example of three communication devices and two host devices, but the number of each device is not limited to this number. Further, FIG. 2 is a diagram showing a signal flow between each device in the configuration example of FIG.

The case where the log information generated by the communication device 1 is stored in the host device 4 or the host device 5 will be described below.

The communication devices 1 to 3 generate log information S9 such as a communication history between other communication devices and the cause of failure of the own device. When the log information is to be stored in the host device, it has a function of transmitting host search broadcast notification signals S1 and S2 for searching a host device capable of storing the log information to the outside.

A communication device (for example, communication devices 2-3)
When the host search broadcast notification signals S1 and S2 transmitted from another communication device (for example, the communication device 1) are received,
Received interface side (eg network 6 side)
Interface side different from (for example, networks 7-8)
Side) to transfer the host search broadcast notification signals S3 and S4 to the host device (for example, the host devices 4 to 5).

A communication device (for example, communication devices 2-3)
Is a host search response signal S5 from the host devices 4-5.
When S6 is received, the host search response signals S7 and S8 are sent to another communication device (for example, the communication device 1) from the interface side (for example, the network 6 side) different from the received interface side (for example, the network 7-8 side). With the function to transfer.

Further, the communication devices 1 to 3 also have a function of judging the host device which has returned the host search response signal earliest as a host device capable of storing log information and transmitting the log information to the host device. To have. Here, when the host device does not return the host search response signal, it is determined that there is no host capable of storing the log information, and the host computer also has a function of not transmitting the log information.

The host devices 4 to 5 can receive the log information from the communication device 1 via the networks 6 to 8 and have a function of saving the received log information in their own devices.

If the host devices 4 to 5 have the capacity to store the log information at the time of receiving the host search broadcast notification signal transmitted by the communication device 1 prior to receiving and storing the log information, , Has a function of generating a host search response signal and returning it to the communication device 1.

Further, the host devices 4 to 5 are communication devices 1
When the host search broadcast notification signal from is received, if there is no capacity for storing the log information, the host search response signal is not returned.

The host devices 4 to 5 having the above-mentioned functions have, for example, a network interface card and a hard disk device built therein, and a personal computer or a work machine in which software for generating each of the above signals is mounted. It can be realized at a station or the like.

Further, as the networks 6 to 8, telephone lines or LAN (Local Area Neighbor) using wired or wireless are used.
A dedicated line such as twork) or an internet line can be used.

Next, the operation of this embodiment will be described in detail with reference to FIGS. 1 and 2.

When it is desired to store the log information generated by the communication device 1 in the host device 4 or 5, first, the host search broadcast notification signals S1 and S2 for searching the host device capable of storing the log information from the communication device 1 are used. Is transmitted to the plurality of host devices 4 to 5 via the network 6. The communication devices 2 to 3 that have received the host search broadcast notification signals S1 and S2 via the network 6 have different interfaces (not shown) from the interfaces (not shown) that have received the host search broadcast notification signals S1 and S2. No.), the host search broadcast notification signals S3, S4 (S3
= S1, S4 = S2) to the host devices 4-5.
That is, the communication device 2 transfers the host search broadcast notification signal S3 to the side where the host device 4 exists, and the communication device 3 transfers the host search broadcast notification signal S4 to the side where the host device 5 exists.

When the host devices 4 to 5 that have received the host search broadcast notification signals S3 and S4 can store the log information, the host devices 4 to 5 send the host search broadcast notification signals S3 and S4 to the communication device 1 which is the transmission source. In response, host search response signals S5 and S6 are returned. The communication devices 2-3, which have received the host search response signals S5 and S6, receive the host search response signals S5 and S.
6 is received from an interface (not shown) different from the interface (not shown) via the network 6, the host search response signals S7, S8 (S7 = S5, S8 = S).
6) is transferred to the communication device 1.

Here, the communication device 1 regards the host device to which the host search response signal arrives first as a host device capable of storing log information. For example, as shown in FIG. 2, after receiving the host search response signal S7 from the host device 4,
When the host search response signal S8 is received from the host device 5, the host device 4 is regarded as a host capable of storing log information. Then, the communication device 1 transmits the generated log information S9 to the host device 4.

The host search broadcast notification signals S3 and S4
The host devices 4 to 5 that have received the message are the communication device 1 that is the transmission source of the host search broadcast notification signal when the log information cannot be saved due to lack of space for saving the log information.
, The host search response signal is not returned. For example,
When the communication device 1 receives the host search response signal transmitted from the host device 5 but does not receive the host search response signal from the host device 4, the host device 5 is regarded as a host capable of storing log information. Then, the communication device 1 transmits the generated log information to the host 5. here,
As a case where the communication device 1 determines that the host search response signal from the host device 4 has not been received, for example, when the communication device 1 first receives the host search response signal from the time when the communication device 1 first receives the host search response signal, This corresponds to the case where the host search response signal from the device 4 has not arrived.

As described above, by using the present invention, even when a failure occurs in a certain host device, a host search response signal is not transmitted from the failed host device, so the log information is used in the communication device. It is possible to determine which host device cannot store the data. Therefore, log information can be sent to a normal host device other than that host device,
It becomes possible for the host device to save all log information.

The second embodiment of the present invention is as follows. That is, when a host search response signal is returned from a plurality of host devices to the communication device that is the source of the host search broadcast notification signal, not only the host device that first received the host search response signal but also other The host device may also be regarded as a host capable of storing log information.

As a result, for example, even when the log information to be stored has a large capacity, the log information can be divided into a plurality of pieces and distributed and stored in a plurality of storable hosts.

Next, there is the following as a third embodiment of the present invention. That is, the search for the host device capable of storing the log information is not performed when the log information to be stored is generated as in the first embodiment, but a host search response signal is periodically sent from each host device. It may be configured such that a reply is returned and the reply result is registered in advance in the communication device.

Thus, when the log information desired to be stored in the host device is generated in the communication device, the host device capable of storing the log information can be determined by referring only to the reply result registered in the communication device. . Therefore, it becomes unnecessary to exchange the host search broadcast notification signal and the host search response signal between the communication device and the host device as described in the first embodiment, and the log information can be promptly saved in the host device. It will be possible.

Further, as a fourth embodiment of the present invention,
There are the following. That is, the host search response signal generated by the host device may be configured to include the information about the storable capacity in addition to the information indicating that the log information of the communication device can be stored in the host device. Good.

As a result, the communication device can judge whether or not all the log information transmitted by itself can be stored only in the destination host device.

[0033]

The present invention has the following effects. The first effect is achieved by the invention described in claim 1, and a plurality of host devices for storing log information are installed. Therefore, even if a failure occurs in one host device, the log information of the communication device can be saved using another host device.

The second effect is achieved in the invention according to claim 1, and since a plurality of host devices for storing log information are installed, the log information from the communication device has a large capacity and one host device is used. Even if the entire log information cannot be saved in the storage capacity of the host device, the communication device can cause another host device to save the remaining log information. Therefore, even a large amount of log information can be divided and stored in a plurality of host devices.

The third effect is achieved in the invention described in claim 8, and the host device capable of storing the log information only by referring to the host search response signal from the host device registered in advance in the communication device. Since the log information can be determined, the log information can be promptly saved in the host device.

The fourth effect is achieved in the invention described in claim 10, and the communication device can compare the capacity of the log information transmitted by itself with the storage capacity of the host device for storing the log information. Therefore, even if the log information of the communication device has a large capacity and the storage capacity of one host device cannot store the entire log information, the log information can be divided and stored in a plurality of host devices.

[Brief description of drawings]

FIG. 1 is a communication device 1 to which a log management system of the present invention is applied.
3 is a block diagram showing an example of the connection configuration between the host computer 3 and host devices 4-5.

FIG. 2 is a diagram showing a signal flow between devices in the configuration example of FIG.

[Explanation of symbols]

1, 2, 3 communication device 4,5 Host device 6,7,8 network S1, S2, S3, S4 Host search broadcast notification signal S5, S6, S7, S8 Host search response signal S9, S10 log information

Claims (11)

[Claims] 1. A method of managing log information in a network connecting one or more communication devices and two or more host devices managing log information to each other, wherein the log information management method is a log information transmission request. In the communication device, the search notification step of transmitting a host search broadcast notification signal to the two or more host devices; and in the host device receiving the host search broadcast notification signal, the host search response signal A response transmitting step of transmitting the log information to a communication device; and a log transmitting the log information to a target host device that has determined that the log information can be stored in the communication device that has received the host search response signal. An information transmitting step; and a step of storing the log information in the host device that has received the log information. How to manage log information. 2. The communication device, which has not transmitted the log information, further includes the step of transferring the host search broadcast notification signal to the host device when the host search broadcast notification signal is received. The method for managing log information according to claim 1, wherein: 3. The log information management method according to claim 1, wherein in the response transmission step, the host device is
A method of managing log information, comprising transmitting the host search response signal to the communication device when there is a capacity for storing the log information. 4. The log information management method according to claim 1, wherein in the response transmission step, the host device is
The method for managing log information, wherein the host search response signal is not transmitted to the communication device when there is no capacity for storing the log information. 5. The communication device that has transferred the host search broadcast notification signal further comprises the step of transferring the host search response signal to the communication device other than the own device when the host search response signal is received. The management method of log information according to claim 1, wherein the management information includes log information. 6. The method for managing log information according to claim 1, wherein in the log information transmitting step, the communication device that has issued the log information transmission request transmits the host search response signal that is first received. The host device
A method for managing log information, characterized by determining that the target host device. 7. The method of managing log information according to claim 1, wherein in the log information transmitting step, all host devices that have transmitted the received host search response signal are determined to be the target host device. A method for managing log information, which is characterized in that 8. The log information according to claim 1, wherein the host device sends the host search response signal at regular intervals regardless of whether or not the host search broadcast notification signal is received. Management method. 9. The log information includes a communication history between the one or more communication devices, and a cause of a failure occurring in the one or more communication devices themselves.
How to manage the log information described in 4. 10. The method for managing log information according to claim 1, wherein the host search response signal includes information regarding a capacity that can be stored in the host device. 11. The log information management method according to claim 1, wherein the network is a telephone line using a wire or wireless, a dedicated line, or an internet line.