JPH0294845A - Management equipment for lan system - Google Patents

Abstract

PURPOSE:To realize a remote operation and a maintenance to plural LAN systems by providing a port for external operation display having the same interface as a port connecting to a local operation display section to a diagnostic device main body and connecting a communication line network to the external operation display port. CONSTITUTION:The diagnostic device main body 11 is provided with the external operation display port 14 having the same interface as a port 13 connecting to a local operation display section 12 and the port 14 is connected to a communication line network 6 via a DEC 8. When a terminal equipment 7 and other LAN system management device 3 diagnose the state of a LAN system, the management device 3 of the LAN system being diagnostic object via the communication line network 6 is called and a state diagnostic command is instructed and inputted to the diagnostic device main body 11 remotely. Thus, the state retrieval command is instructed and inputted to the port 14 via the communication line network 16 to diagnose the state of the LAN system externally and remotely.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention is a LAN system management device that realizes remote operation and maintenance among multiple LAN systems distributed in several regions. Regarding.

(Prior Art) Operations and maintenance of stations installed in a LAN (Local Area Network) are performed individually by a management device connected to the L'AN system. FIG. 3 shows a schematic configuration of this type of LAN system, where (2) is a LAN trunk line typified by Ethernet, which is realized by an information transmission path such as a coaxial cable or optical fiber.

This kind of LAN trunk trunk number of stations (STN
H, ~STN IIN) 2a, ~2n are connected respectively, and these stations (STN ill, ~STN
STN IIN) The above LANQ'? between 2a and 21? Information communication is carried out via "wires".

In addition, the management device 3 is connected to the LAN main line 1 and the LA
This station operates and maintains the N system, particularly the stations 2a and 21. Therefore, the management device 3 sequentially transmits diagnostic packets to each station 2a, ~2n, and sends the diagnostic packet to the destination station 2 (2a, ~2n).
It is determined whether or not each of the stations 2a to 2n is functioning normally by determining whether or not a response packet to the diagnostic packet is returned from any one of the stations 2a to 2n.

Stations 2a to 2n by such a management device 3
Diagnosis (LAN system operation management) - For boat fishing■
By constantly operating the management device 3, the operating status of each station 2a, to 2n is constantly monitored.
Or (1) When a failure occurs in the LAN system, the management device 3 is activated under the instructions of the system administrator, and each station 2a at that time.

This is done by checking the status of ~2n.

Note that which management form to adopt is determined depending on the importance of the LAN system, the amount of traffic on the LAN main line 1, and the like.

However, even if the status of each station 2a to 2n is grasped by the management device 1, specialized maintenance is required to accurately investigate and judge the cause of system failure etc. from that information (station status information). It becomes necessary. Therefore, whenever a system failure occurs, it is necessary for a specialized maintenance person to go to the location where the management device 1 is installed and carefully operate the management device 1 to investigate the cause.

(Problem to be Solved by the Invention) As described above, in conventional LAN systems, the status of stations is checked using the management device installed in each LAN system, and its operation and maintenance are performed. Therefore, when a system failure requires specialized maintenance, there is a problem in that specialized maintenance personnel must go to the location where the management device is installed each time.

The present invention has been made in consideration of these circumstances, and its purpose is to provide a practical system that can remotely operate and maintain multiple LAN systems distributed in several regions. An object of the present invention is to provide a management device for a LAN system with excellent performance.

[Structure of the Invention] (Means for Solving the Problems) The present invention comprises a diagnostic device main body that controls a series of operations and maintenance processes for a LAN system, and a local operation display connected to the diagnostic device main body. transmitting diagnostic packets to a plurality of stations installed in the LAN in response to a status search command from the local operation display unit;
In a LAN system management device that operates and maintains the station by identifying whether or not a response packet from a station to the diagnostic packet is detected, the local operation display section is connected to the diagnostic device main body. A port for external operation display having the same interface as the port is provided, and the diagnostic device body also receives status search commands issued from the diagnostic device body of another LAN system connected to this port via a communication line network. It is characterized by the following.

(Function) According to the management device according to the present invention, since the main body of the diagnostic device is provided with a port for external operation display having the same interface as the port to which the local operation display section is connected, this port is connected to the communication line network. It becomes possible to input a status search command for remotely diagnosing the LAN system from the outside via this communication line instead of the status search command from the local operation display section.

As a result, it becomes possible for experts to operate and maintain the management equipment of a LAN system remotely from, for example, another LAN system's management equipment or a dedicated maintenance terminal, without having to go to each location where the management equipment is installed. .

(Embodiment) Hereinafter, a LAN system management device according to an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 shows a communication line network 6 such as a public line network or a packet-switched network, in which a management device according to the embodiment is incorporated, and one LAN system 5a to 5m, each constructed in several regions, is installed. 1 is a schematic configuration diagram of a network system configured to be centrally and remotely managed by a dedicated maintenance terminal 7 via a dedicated maintenance terminal 7.

Incidentally, each of the above-mentioned LAN systems 5a to 5 has a plurality of stations 2a on its LAN main line 1, as shown in FIG.
, ~2n and the management device 3 are connected to each other.

As shown in FIG. 2, for example, the management device 3 in each LAN system 5a to 5I11 is basically a diagnostic device main body 11 that manages a series of operations and maintenance processes for the LAN system. , and a local operation display section 12 connected to a port of the diagnostic device main body 11. This diagnostic device main body 11 receives a status search command from the local operation display section 2, and sequentially or selectively transmits diagnostic packets to a plurality of stations 2a, ~2n connected to the LAN main line 1. The state of the station 2 is detected by determining whether or not a response packet to this diagnostic packet is detected from the destination station 2k. Specifically, the diagnostic device main unit II controls several ports according to a program installed therein, and in response to a status search command input through the ports, the diagnostic device main unit II controls stations 2a to 2n.
The above-mentioned diagnostic process is executed for.

The diagnostic device main body 11 is provided with an external operation display port 14 having the same interface as the port 13 to which the local operation display section 12 is connected. The communication line network 6 is connected to this external operation display port 14 via a DEC 8 comprised of a modem, an NCU, and the like. The above-mentioned maintenance terminal 7 is also connected to the communication line network 6 via the EC9.
connected to.

Diagnostic device main body 11 equipped with such ports 13 and 14
receives a status search command inputted from the local operation display section 12 through the port 13 and executes diagnostic processing for the stations 2a to 2n, or executes a status search inputted to the port 14 from the communication line network B. Upon receiving the command, the diagnostic processing for the stations 2a to 2n is executed. As the status search command for starting this diagnostic process, not only a command for diagnosing each station 2a to 2n individually, but also a command for diagnosing several pre-registered stations at once is provided. These commands can be used depending on the situation.

Here, from the terminal 7 or the management device 3 of another LAN system,
To explain the flow of processing procedures when diagnosing the state of a LAN system consisting of By detecting the response, a communication line is formed with the LAN system 5a to be diagnosed. Diagnosis target side LAN system 5a
The management device 3 detects the incoming call and connects the port 1
The communication line network 6 is connected to the diagnostic apparatus main body 11 via the communication line 4. This connection control makes it possible to remotely instruct the diagnostic device main body 11 with a status diagnosis command from the outside via the communication line network 6, and to manually input a status diagnosis command to the terminal 7 or the terminal 7 connected via the communication line network 6. The local operation display unit 12 of the management device 3 in another LAN system functions in the same manner as the local operation display unit 12 in the LAN system 5a targeted for diagnosis.

According to the management device configured in this way, by simply having the port 14 for external operation display having the same interface as the port 13 to which the local operation display section 12 is connected, external input from the port 14 can be performed. This makes it possible to accept status search commands. Therefore, by connecting a communication line network 6 to the port 14 via the DEC 8 and manually inputting a status search command to the port 14 via the communication line 6, the status of the LAN system can be remotely diagnosed from the outside. It becomes possible to do so.

As a result, even if it is necessary for a specialist to understand the situation in detail, the communication line network
It becomes possible to remotely check the status of the LAN system in detail.

Moreover, it is possible to proceed with the diagnostic processing with the same feeling as directly operating the local operation display unit 12 in the management device of the LAN system to be diagnosed.

Therefore, with this device, it is possible to save labor and improve the efficiency of system operation by saving the trouble of dispatching specialists and making it possible to quickly and effectively deal with failures in the LAN system. Great practical effects can be achieved.

Note that the present invention is not limited to the embodiments described above, and the interface specifications of ports 13 and 14 are based on the LAN.
It can be modified in various ways depending on the system. Also, the type of status search command etc. is not particularly limited.
The present invention can be implemented with various modifications without departing from the gist thereof.

[Effects of the Invention] As explained above, according to the present invention, it is possible to remotely give a status search command to the management device of a LAN system from the outside and have it perform diagnostic processing.
This has great practical effects, such as eliminating the need to dispatch a specialist every time a fault occurs in the AN system, and making it possible to quickly and efficiently diagnose the LAN system.

[BRIEF DESCRIPTION OF THE DRAWINGS] FIG. 1 is a schematic configuration diagram of a network system configured by applying an embodiment of the present invention, FIG. 2 is a schematic diagram of the main part of a management device according to the embodiment, and FIG. The figure is a diagram for explaining the general configuration of a conventional LAN system and its diagnostic processing form. ■...LAN? '? tlA, 2a, ~2n...
・Station, 3...Management device, 5a, ~5m...
・LAN system, 6... Communication line network, 7... Maintenance terminal, 8, 9... DEC, 11... Diagnosis device main body, 12... Local operation display section, 13° 14.・・・
Ports of the same interface. Applicant's agent Patent attorney Takehiko Suzue

Claims (1)

[Claims] In response to receiving a status search command from the local operation display unit, L
A diagnostic device equipped with a diagnostic device main body that transmits a diagnostic packet to a station installed in an AN and operates and maintains the station by identifying whether or not a response packet to the diagnostic packet is detected, The diagnostic device main body is provided with a port for external operation display that has the same interface as the port to which the local operation display section is connected, and a port from the diagnostic device main body of another LAN system connected to this port via a communication line network is provided. A LAN system management device characterized in that it also receives a status search command.