JP3017089B2 - Network management apparatus and method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a network management apparatus and method, and more particularly to an SNMP (Simple Network Management System).
The present invention relates to an SNMP management apparatus and method that can manage a management target that does not use SNMP as a management protocol and a management target that does not use IP in a network management apparatus that uses a management protocol as a management protocol.

[0002]

2. Description of the Related Art Conventionally, this type of network management system is used to manage a management target in a network having SNMP as a management protocol. For a management target that does not use SNMP as a management protocol and a management target that does not use IP (hereinafter, referred to as non-SNMP management target), a proxy device called a proxy agent performs protocol conversion and data conversion to use SNMP. Has been managed. These non-SNMP managed objects usually have local addresses. Therefore, in a conventional network management system, the local address is used to identify a non-SNMP management target. This is because identification is performed by using a non-SNMP-managed local address as an index of a MIB (Management Information Base).

[0003]

As described above, the conventional network management apparatus performs the identification and display using the local address which is not managed by the SNMP, so that the SNMP is used.
The management method cannot be unified with the management target that uses the management protocol of, and there is a problem in operability and maintainability.

The present invention has been made under such a background, and even if the management target is a non-SNMP management target,
An object of the present invention is to provide a network management apparatus and a network management method capable of performing management in the same manner as a management method for an SNMP management target.

[0005]

According to the first aspect of the present invention,
Management target and IP not using SNMP as management protocol
Means for assigning a corresponding temporary IP address and host name to a local address to be managed which does not use the IP address, notifying a trap originating from the IP address, and displaying the host name as a name to be managed. It is characterized by having. According to a second aspect of the present invention, a corresponding temporary IP address and host name are assigned to a local address of a management target that does not use SNMP as a management protocol and a management target that does not use IP.
It is characterized by searching for an address and a host name. According to a third aspect of the present invention, in a network management apparatus using SNMP as a management protocol, a local address of each management target and a local address of each of a plurality of management targets not using SNMP as a management protocol and a plurality of management targets not using IP are used. A storage unit for storing an IP address corresponding to the address, and an IP address corresponding to the local address of the management target is called from the storage unit when a state change of the management target is detected. And trap generating means for generating a trap. According to a fourth aspect of the present invention, in the network management device according to the third aspect,
Upon detecting a change in the state of the management target, the trap generation unit detects an I corresponding to the local address of the management target.
The P address is called from the storage means, and the called I
The P address is set in the “agent-addres” part of the data format of the SNMP trap. According to a fifth aspect of the present invention, in the network management apparatus using SNMP as a management protocol, a local address of each management target is provided for a plurality of management targets not using SNMP as a management protocol and a plurality of management targets not using IP. When a storage unit that stores a host name corresponding to the address and a newly added management target are detected,
Display means for calling a host name corresponding to the local address of the management target from the storage means and displaying the called host name as a symbol name of the management target.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION

§1. Overview The network management system 4 according to the present embodiment includes a non-S
A translation table (host name / host name) storing the IP address and the host name corresponding to the local address of the NMP management target 6
By using the IP address conversion file 21), the non-SNMP management target 6 is identified and displayed on the network management system 4.

When the non-SNMP managed object monitoring unit 13 provided in the network management system 4 detects that the state of the non-SNMP managed object 6 has changed, the non-SNMP
Means for acquiring a host name and an IP address corresponding to the local address of the MP management target 6; and transmitting the status change to the SNM from the IP address corresponding to the local address.
Means for notifying the SNMP trap processing unit 14 as a P trap.

Further, the non-SNMP managed object monitoring unit 13
Non-SNMP managed object 6 was newly added (configuration change)
When detecting that, the means for acquiring the host name and IP address corresponding to the local address of the newly added non-SNMP management target 6 and the host name corresponding to the local address are replaced with the symbol of the non-SNMP management target 6. Means for requesting a symbol to be displayed on the management target symbol display unit 16 so as to be displayed as a name.

Further, the non-SNMP managed object monitoring unit 13
Upon detecting that the state of the non-SNMP managed object 6 has changed, the local address of the non-SNMP managed object 6 to which the state change event has been trapped is indicated by the host name /
A search is made to see if the IP address conversion file 21 (see FIG. 5) is included in the host alias. Then, the host name and the IP address corresponding to the alias (local address) of the host are obtained, and the corresponding IP address is set in the “agent-address” part of the SNMP trap (see FIG. 4), and the non-SNMP management target is set. As the state change trap of 6,
Notify the SNMP trap processing unit 14.

The non-SNMP managed object monitoring unit 13
The configuration information of the non-SNMP managed object 6 is collected, and the non-SNMP
When it is detected that the MP management target 6 is newly added (configuration change), the local address of the newly added non-SNMP management target 6 is changed to the host name of the host name / IP address conversion file 21 (see FIG. 5). Search for an alias. Then, the management target symbol display unit 1 acquires a host name and an IP address corresponding to the alias (local address) of the host, and displays the corresponding host name as the name of the symbol of the non-SNMP management target 6.
6 is requested to display a symbol.

§2. Embodiment Next, an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 2 is a block diagram illustrating a configuration example of a network including the network management system 4 according to the present embodiment. In this figure, a network management system 4 of the present invention manages a non-SNMP management target 6 via a proxy agent 5.

FIG. 1 shows the network management system 4.
FIG. 3 is a block diagram illustrating a configuration example of FIG. As shown in FIG.
The network management system 4 includes a data processing device 1 that operates under program control, a storage device 2 that stores information, and an output device 3 such as a display device. Here, the features of the network management system 4 are as follows.
It is in the non-SNMP managed object monitoring unit 13 and the host name / IP address conversion file 21.

In FIG. 1, a storage device 2 stores a host name /
An IP address conversion file 21 is included. Host name / IP
The address translation file 21, as shown in FIG.
It stores addresses, host names, and host aliases. Here, the IP address is an IP address temporarily assigned to the non-SNMP management target 6, and is a private address that can be used locally by the network management system 4. Further, the alias of the host includes the local address of each non-SNMP managed object 6.

The data processing device 1, as shown in FIG.
Communication control unit 11, SNMP processing unit 12, non-SNMP management target monitoring unit 13, SNMP trap processing unit 14, SNM
It comprises a P trap display section 15 and a management target symbol display section 16. Here, the communication control unit 11 controls a communication protocol such as TCP / IP under SNMP. Further, the SNMP processing unit 12 performs SNMP Set, Ge
Basic processing of t and Trap commands is performed.

The non-SNMP managed object monitoring unit 13 exchanges information with the proxy agent 5 via the proxy agent 5 in order to monitor the status of the non-SNMP managed object 6. Therefore, the SNMP processing unit 12
, A Set and Get commands are transmitted and received. Then, the non-SNMP management target monitoring unit 13 outputs the non-SNMP management target 6
When the state change of the SNMP trap processing unit 14 is detected,
, The status change is notified as an SNMP trap. At this time, referring to the host name / IP address conversion file 21 (see FIG. 5), the non-S
Local address of NMP management target 6 (alias of host)
To obtain the host name and IP address corresponding to. Also,
When the non-SNMP management target monitoring unit 13 newly detects the non-SNMP management target 6, the non-SNMP management target monitoring unit 13 requests the management target symbol display unit 16 to additionally display the symbol of the non-SNMP management target 6.

The SNMP trap processing unit 14 is an SNMP trap processing unit.
In response to a trap reception from the management target (from the SNMP processing unit 12) and a trap notification request from the non-SNMP management target monitoring unit 13, a request is made to display a trap on the SNMP trap display unit 15. SNMP trap display unit 1
5 outputs the display information of the trap to the output device 3 according to the trap notification request from the SNMP trap processing unit 14. The managed symbol display unit 16 outputs the managed symbol to the output device 3 according to the managed symbol display request from the non-SNMP managed monitoring unit 13.

Next, referring to FIGS. 1, 3 and 7,
The operation of the embodiment of the present invention will be described. 3 and 7 are flowcharts illustrating an operation example of the non-SNMP management target monitoring unit 13.

First, the operation of the non-SNMP managed object monitoring unit 13 at the time of trap notification will be described with reference to FIGS. The non-SNMP management target monitoring unit 13 collects the status of the non-SNMP management target 6 via the proxy agent 5 (step A1). Where non-SNMP
The identifier of the management target 6 is a local address,
Is the same as the index. When the non-SNMP-managed object monitoring unit 13 detects that the state of the non-SNMP-managed object 6 has changed (step A2), it checks whether the state change event is a trap notification object (step A3). .

When the non-SNMP managed object monitoring unit 13 is the target of the trap notification, the local address of the non-SNMP managed object 6 is changed to the alias of the host in the host name / IP address conversion file 21 (see FIG. 5). A search is made to see if it is included, and the host name and IP address corresponding to the alias are obtained (step A4). And the corresponding I
The P address is set to “ag” of the SNMP trap shown in FIG.
ent-address "section, and as a state change trap of the non-SNMP managed object 6, the SNMP trap processing section 14
(Step A5).

In the SNMP trap processing unit 14, the SNMP
As with the trap notified from the P management target, the non-S
The SNMP trap is processed assuming that the trap has been notified from the NMP management target 6, and the SNMP trap display unit 1
5 to output a trap message. Thus, non-S
By converting the temporary IP address assigned to the NMP management target 6 into a host name, the source of the trap is displayed as a message, similarly to the SNMP management target.

Next, with reference to FIGS. 1 and 7, the operation of the non-SNMP management target monitoring unit 13 when displaying a management target symbol will be described. Non-SNMP managed object monitoring unit 1
3 collects the configuration information of the non-SNMP management target 6 via the proxy agent 5 (step B1). At this time, the non-SNMP management target monitoring unit 13
When it is detected that the management target 6 is newly added (configuration change) (step B2), the local address of the non-SNMP management target 6 is changed to the host name / IP address conversion file 2.
A search is performed to determine whether the host name is included in the alias of the host 1 (see FIG. 5), and the host name and the IP address corresponding to the alias are acquired (step B3). Finally, the non-SNMP management target monitoring unit 13 requests the symbol display unit 16 to display a symbol so that the corresponding host name is displayed as the name of the symbol of the non-SNMP management target 6.

Next, the effects of the embodiment of the present invention will be described. In the present embodiment, since the temporarily assigned IP address is included in the trap of the status change of the non-SNMP management target 6, the trap of the non-SNMP management target 6 can be processed in the same manner as the trap display of the SNMP management target. Can be displayed in the same manner. Further, the change of the trap origin display can be easily realized by changing the host name of the host name / IP address conversion file 21 (see FIG. 5). Further, since it is not necessary to set the information of the local address as VBL in the state change trap of the non-SNMP management target 6,
The data size of the trap can be reduced. The name of the symbol to be managed can be displayed by referring to the host name in the host name / IP address conversion file 21 (see FIG. 5), and can be easily changed.

Next, the operation of the embodiment of the present invention will be described in detail. FIG. 5 is an explanatory diagram showing an example of the host name / IP address conversion file 21 (see FIG. 5). In this figure, “alias of host” includes non-SNM
The local address of the P management target 6 is set. In the “IP address”, a temporary IP address of the non-SNMP management target 6 is set. Also, "Host name"
Is set for the SNMP trap processing unit 14 to display the non-SNMP management target 6 as a trap source. In FIG. 5, for example, the temporary I / O of the non-SNMP management target 6 having the local address “0001”
The P address is “192.168.1.1” and the host name is “Tok
yo01 ".

Next, an example of the operation of the non-SNMP managed object monitoring unit 13 in the above embodiment will be described below. First, at the time of trap notification, the non-SNMP management target monitoring unit 13
Will be described. As shown in FIG. 6, the non-SNMP management target monitoring unit 13 has, for example, a local address “000”.
The status of the non-SNMP managed object 6 of "1" is collected via the proxy agent 5 (step A1). Here, when a state change is detected (step A2) and it is determined that a trap is to be notified (step A3), the following operation is performed.

First, the non-SNMP managed object monitoring unit 13
Host name / IP address conversion file 21 (see FIG. 5)
Non-SNMP management target 6
To search for the local address "0001". In FIG. 5, the IP address corresponding to “0001” is “192.168.1.
Since it is “1”, the non-SNMP management target monitoring unit 13 uses this IP address as the source of the SNMP trap and sets “agent-addres” in the trap format (see FIG. 4).
s "and notifies the SNMP trap processing unit 14 (step A5). At this time, only the content of the state change is set in the VBL, and it is not necessary to have information on the local address.

The SNMP trap processing unit 14 is a non-SNM
"Agen" of the trap sent from the P management target monitoring unit 13
When recognizing that “t-address” is “192.168.1.1”, the host name “Tokyo01” of “192.168.1.1” is extracted from the host name / IP address conversion file 21 (see FIG. 5), and the host name “ It requests the SNMP trap display unit 15 to display "Tokyo 01" as an SNMP trap message.

Next, the operation of the non-SNMP management target monitoring unit 13 when displaying the management target symbol will be described.
As shown in FIG. 8, the non-SNMP management target monitoring unit 13
For example, a non-SNMP whose local address is "0004"
The management target 6 is newly detected via the proxy agent 5 (steps B1 and B2). Next, non-SNMP
The management target monitoring unit 13 refers to the “host alias” in the host name / IP address conversion file 21 (see FIG. 5) and refers to the local address “000” of the non-SNMP management target 6.
4 ". In FIG. 5, I corresponding to "0004"
The P address is “192.168.1.4” and the host name is
"Osaka02". Finally, the non-SNMP management target monitoring unit 13 uses this host name (“Osaka02”) as its non-S
A request to display a symbol is made to the managed symbol display unit 16 so that the symbol is displayed as the name of the symbol of the NMP managed object 6.

The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and a design change or the like may be made without departing from the gist of the present invention. Even if there is, it is included in the present invention.

[0029]

The first effect is that a trap display of a non-SNMP managed object can be processed and displayed in the same manner as a trap display of an SNMP managed object. The reason is in the trap of the status change of the non-SNMP management target,
This is for including the temporarily assigned IP address. The second effect is that it is possible to easily change the display of the source of the trap and the display of the name of the symbol to be managed. The reason is that the information that is the basis of the display of the host name is obtained from the storage unit. A third effect is that the data size of a trap that is not managed by SNMP can be reduced. The reason is that it is not necessary to set the information of the local address as the VBL in the state change trap to be managed by the non-SNMP.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration example of a network monitoring system 4 according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration example of a network including the network management system 4.

FIG. 3 is a flowchart illustrating an operation example of a non-SNMP management target monitoring unit 13 at the time of trap notification.

FIG. 4 is an explanatory diagram showing an example of a data format of an SNMP trap.

FIG. 5 is an explanatory diagram showing a configuration example of a host name / IP address conversion file 21;

FIG. 6 is a flowchart illustrating an operation example of the non-SNMP management target monitoring unit 13 at the time of trap notification.

FIG. 7 shows a non-SN when a symbol to be managed is displayed.
5 is a flowchart illustrating an operation example of an MP management target monitoring unit 13;

FIG. 8 shows a non-SN when a symbol to be managed is displayed.
5 is a flowchart illustrating an operation example of an MP management target monitoring unit 13;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Data processing device 2 ... Storage device 3 ... Output device 4 ... Network management system 5 ... Proxy agent 6 ... Non-SNMP management target 11 ... Communication control unit 12 ... SNMP processing unit 13 ... Non SNMP managed object monitoring unit 14 SNMP trap processing unit 15 SNMP trap display unit 16 Managed symbol display unit 21 Host name / IP address conversion file

────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Junichi Horie 1-403 Kosugi-cho, Nakahara-ku, Kawasaki-shi, Kanagawa In-house NEC Telecom Systems Corporation (56) References JP-A-8-102756 (JP, A) JP-A-8-44646 (JP, A) JP-A-6-224915 (JP, A) JP-A-7-79246 (JP, A) JP-A-5-89018 (JP, A) (58) (Int.Cl. ⁷ , DB name) H04L 12/24 H04L 12/28 H04L 12/40-12/437 G06F 13/00

Claims (5)

(57) [Claims] A means for assigning a corresponding temporary IP address and host name to a local address of a management target not using SNMP as a management protocol and a management target not using IP, and notifying a trap originating from the IP address. Means for displaying the host name as a name of a management target. 2. A corresponding temporary IP address and a host name are assigned to a local address of a management target that does not use SNMP as a management protocol and a management target that does not use IP.
A network management method characterized by displaying as IP address and host name failure information . 3. A network management apparatus using SNMP as a management protocol, wherein, for a plurality of management objects not using SNMP as a management protocol and a plurality of management objects not using IP, a local address of each management object and a correspondence to the local address are provided. A storage means for storing an IP address to be managed, and an IP address corresponding to the local address of the management object is called from the storage means when a state change of the management object is detected, and an SN having the called IP address as a generation source is called.
A network management device, comprising: a trap generation unit that generates an MP trap. 4. The network management device according to claim 3, wherein the trap generation unit detects a change in the status of the management target, and detects a change in the local address corresponding to the local address of the management target.
The P address is called from the storage means, and the called I
A network management device, wherein a P address is set in an “agent-addres” part of a data format of an SNMP trap. 5. A network management apparatus using SNMP as a management protocol, wherein a plurality of managed objects not using SNMP as a management protocol and a plurality of managed objects not using IP correspond to the local addresses of the respective managed objects and the local addresses. Storage means for storing a host name to be managed, and when a newly added management target is detected, a host name corresponding to the local address of the management target is called from the storage means, and the called host name is the symbol name of the management target. A network management device, comprising: display means for displaying as a display.