JPH0270141A - System for testing communication line - Google Patents

Abstract

PURPOSE:To conduct the test of communication lines without deteriorating communication processing capacity by connecting communication processors with a maintenance operation device by means of testing lines. CONSTITUTION:Respective line switching means 100 switch and connect the communication lines 4 designated from the maintenance operation device 2 via the test lines 7 to the lines 7. A line test means 200 transmits an instruction for switching and connecting the lines 4 to be tested to the lines 7 to respective communication processors 1 via the lines 7, and conducts the test of the lines 4 which has been switched and connected to the lines 7 via the lines 7. Since all the test processings of the lines 4 are executed by the means 200 of the device 2 after the means 100 switch and connect the lines 4 to the device 2, the increase of loads with respect to the test processing of the lines 4 is eliminated in the processors 1, whereby communication processing capacity is prevented from deteriorating due to the test processing of the communication lines.

Description

[Detailed Description of the Invention] [Summary] This invention relates to an improvement in a communication line testing method for testing a communication line accommodated in each communication processing unit in a communication processing system comprising a plurality of communication processing units and maintenance and operation equipment. , with the aim of making it possible to test the communication lines accommodated without reducing the communication processing capacity of the communication processing system, test lines that connect each communication processing device and the maintenance and operation equipment are installed. and each communication processing device is provided with a line switching means for switching and connecting the communication line specified by the maintenance operation equipment via the test line to the test line, and transmits an instruction to each communication processing device to switch and connect the communication line to be tested to the test line, and then executes a test on the communication line that has been switched and connected to the test line via the test line. It is configured to provide line testing means.

[Industrial application field]

The present invention relates to an improvement in a communication line testing method for testing a communication line accommodated in each communication processing apparatus in a communication processing system including a plurality of communication processing apparatuses and a maintenance and operation apparatus.

[Conventional technology]

FIG. 3 is a diagram showing an example of a conventional data exchanger.

In FIG. 3, the communication processing system includes a plurality of communication processing devices 1 and a maintenance and operation device 2 provided in common to each communication processing device 1, which are connected to each other by a link 3.

Each communication processing device 1 accommodates a plurality of communication lines 4 for data transmission, and a line control unit 11 that executes data link level control for each communication line 4 corresponds to each communication line 4. A common control unit 12 is provided in common for each line control unit 11, and a common control unit 12 that executes communication processing between each communication line 4 is provided.

Each common control unit 12 also includes a line test unit 1 that executes a test on the communication line 4 accommodated in each line control unit 11.
21 are provided.

When a failure occurs in the communication line 4 accommodated in the communication processing device 1, and a test is performed on the communication line 4 (hereinafter, the communication processing device 1, communication line 4, etc. to be tested) The communication processing device l1, the communication line 4 is identified by adding a subscript "," etc., and the same applies hereinafter), and the maintenance person is connected by the transmission system 5 including the communication line 4L, or by the communication line 4L. After requesting the maintainer of the opposing communication processing device 6 to set a return route for the communication line 4, the communication line to be tested is sent from the maintenance operation device 2 to the communication processing device 1t via the link 3. A test start command specifying 4t is transmitted.

In the communication processing device l, when the common control unit 12 receives the test start command transmitted from the maintenance and operation device 2 via the link 3, it starts the line testing unit 121.

The activated line test section 121 transmits test data to the communication line specified by the test command, and the test data is returned via the return route set in the transmission system 5 or the opposing communication processing device 6. The test data is received and compared with the transmitted test data to analyze the state of the communication line, and the test results are returned to the maintenance operation device 2 via the link 3.

The maintenance person receives the communication line 4. which is sent back from the communication processing device 1t to the maintenance operation device 2. Analyze test results for communication lines 4. Determine the failure status of.

When the required test is completed, the maintenance person transmits a test end command specifying the communication line fault from the maintenance operation device 2 to the communication processing device 1t via the link 3.

Communication processing device 1. In this case, when the common control unit 12 receives a test end command transmitted from the maintenance operation device 2 via the link 3, it starts and stops the line testing unit 121.

The line testing section 121 conducts communication line 4. The test processing related to the above is executed in parallel with the normal communication processing executed by the common control unit 12.

[Problem to be solved by the invention]

As is clear from the above description, in a conventional data exchange, the communication processing device 1 includes a line test section 121 in the common control section 12, and performs test processing of the communication line 4 accommodated in parallel with normal communication processing. In order to execute
The configuration of the common control unit 12 including the data exchanger 1 becomes complicated, and the communication line test processing puts pressure on the communication processing capacity of the common control unit 12, resulting in a problem in that the communication processing capacity of the data exchanger is reduced.

An object of the present invention is to enable testing of communication lines to be accommodated without reducing the communication processing capacity of the communication processing system.

[Means to solve the problem]

FIG. 1 is a diagram showing the principle of the present invention.

In FIG. 1, 1 is a communication processing device that accommodates a plurality of communication lines 4, and 2 is a maintenance operation device that is provided in common to each communication processing device 1 and controls maintenance operations of each communication processing device 1.
A communication processing system to which the present invention is applied is configured.

7 includes each communication processing device l and maintenance operation device 2 according to the present invention.
These are test lines established between the two companies.

100 is a line switching means provided in each communication processing device 1 according to the present invention.

Reference numeral 200 denotes line testing means provided in the maintenance and operation device 2 according to the present invention.

[Effect]

Each line switching means 100 connects the communication line 4 designated by the maintenance operation device 2 via the test line 7 to the test line 7.
Switch to connect.

The line testing means 200 transmits an instruction to switch and connect the communication line 4 to be tested to the test line 7 to each communication processing device 1 via the test line 7 , and then transfers the communication line 4 to the test line 7 via the test line 7 . Then, a test of the communication line 4 which is switched and connected to the test line 7 is executed.

Therefore, after the line switching means switches and connects the communication line to the maintenance and operation equipment, all test processing for the communication line is performed by the line test means provided in the maintenance and operation equipment. There is no increase in the load related to line test processing, and the communication processing capacity of the communication processing system is prevented from decreasing due to communication line test processing.

(Example〕 An embodiment of the present invention will be described below with reference to the drawings.

FIG. 2 is a diagram illustrating a data exchange according to an embodiment of the present invention. Note that the same reference numerals indicate the same objects throughout the figures.

In FIG. 2, the line switching means 100 in FIG.
The communication line 4, which accommodates the level converter (LVC) 13, test start monitoring unit (SUP) 14, and switching line control unit (SWC) 15, is commonly used as a switching drive unit (SWC).
A) 16 and a switching unit 17 are provided corresponding to each communication line 4, and a line testing unit 21 and a line control unit 22 are provided as the line testing means 200 in FIG.

In FIG. 2, a communication processing device 1. 4. Communication line accommodated in A failure occurs in the communication line 4. When carrying out a test targeting , the maintenance person installs a transmission system 5 (not shown) including a communication line 4t, as in FIG.
Alternatively, the communication line 4. After requesting the setting of a return route from the maintenance operation device 2 to the communication processing device 1t via the link 3, the communication line 4 to be tested is sent to the communication processing device 1t. transmits a line blocking command to block the line.

In the communication processing device 1t, when the common control unit 12 receives the line blocking command transmitted from the maintenance and operation device 2 via the link 3, it blocks the communication line 4, and closes the communication line 4. A blockage signal is transmitted from the line control unit 11L accommodating the line control unit 11L to the corresponding switching drive unit (SWA) 16L.

Hereinafter, communication processing device 1. stops all communication processing regarding the communication line 4t.

Next, the maintenance person starts up the line testing section 21 in the maintenance and operation device 2, and tests the communication processing device I to be tested.

and the communication line 4L.

The activated line test section 21 includes a line control section 22t that accommodates the test line 7t connecting the designated communication processing device l and the maintenance operation device 2, and a line control section 22t that accommodates the test line 7t that connects the designated communication processing device l and the maintenance and operation device 2, as well as the test line 7t. Communication processing device 1. 4. Communication line 4. A line designation signal X is transmitted to designate the line.

In the communication processing device 1t, a test start monitoring unit (SUP
) 14 monitors the reception level of the test line 7 via the level converter (LVC) 13, and when detecting the line designation signal X transmitted from the maintenance operation device 2, the switching line control unit (SWC) 15 The communication line 4t specified by the line designation signal X is notified to the communication line 4t.

The switching line control unit (SWC) 15 is a test start monitoring unit (SWC).
A switching drive unit (SWA) 16 provided corresponding to the communication line 4t notified from the UP) 14 is activated.

The activated switching drive unit (SWA) 16t switches the corresponding line control unit 11. After confirming that the blockage signal is being transmitted from the controller, the corresponding switching unit 17t is operated.

As described above, the communication line 4t is connected to the switching unit 17. is separated from the corresponding line control section 11t, connected to the test line 7t, and accommodated in the line test section 21 via the line control section 22t.

Thereafter, the line test section 21 operates the line control section 22L, the test line 7. and a communication line 4 connected via the switching unit 17t. As in FIG. 3, the test data sent back via the return route set in the transmission system 5 or the opposing communication processing device 6 is received, and compared with the sent test data. By doing so, the status of the communication line 4L is analyzed and the test results are displayed to the maintenance personnel.

The maintenance person checks the communication line 4 displayed by the line testing section 21.
．． The test results for the communication line 4 are analyzed to determine the failure state of the communication line 4.

When the required tests are completed, the maintenance person connects the communication line 4t from the maintenance operation device 2 to the communication processing device 1t via the link 3.
A command to release the blockage is transmitted.

In the communication processing device 1t, when the common control unit 12 receives the blockage release command transmitted from the maintenance and operation device 2 via the link 3, it releases the blockage of the communication line 4, and performs line control to accommodate the communication line 4t. The blockage signal being transmitted from the section 11 to the corresponding switching actuator (SWA) 16 is stopped.

When the activated switching drive unit (SWA) 16c detects that the blocking signal being transmitted from the corresponding line control unit lit has stopped, it restores the corresponding switching unit 171.

As described above, the communication line vA4t is disconnected from the currently connected test line 7t by the switching unit 17 and accommodated in the corresponding line control unit 11L.

Thereafter, the communication processing device It starts normal communication processing regarding the communication line 4t.

As is clear from the above description, according to this embodiment, the communication line 4. When starting the test for maintenance operation equipment 2
A line blockage command is transmitted via link 3 from
Furthermore, test line 7. When the line designation signal X is transmitted via the communication processing device 1. After blocking the communication line 4t and switching to the test line 7°, the communication line 4. The communication processing device 1 does not perform any communication processing or test processing, and all test processing is left to the line testing section 21 in the maintenance and operation device 2. Therefore, the communication processing device 1 performs normal communication processing, like a conventional data exchanger. Problems caused by executing test processing in parallel, that is, the risk of complicating the configuration of the common control unit 12 and deteriorating the communication processing capacity of the data exchange device, are eliminated.

Note that FIG. 2 is only one embodiment of the present invention, and for example, the configuration of the line switching means 100 is not limited to that shown in the figure, and many other modifications may be considered, but any The effect of the present invention does not change even in this case. Furthermore, it goes without saying that the communication processing system to which the present invention is directed is not limited to the illustrated data exchanger.9 [Effects of the Invention] As described above, according to the present invention, After the communication line is switched and connected to the maintenance operation equipment, the communication line is connected to the communication processing equipment. There is no increase in the load related to test processing, and the communication processing capacity of the communication processing system is prevented from decreasing due to communication line test processing.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the principle of the present invention, FIG. 2 is a diagram showing a data exchange according to an embodiment of the present invention, and FIG. 3 is a diagram showing an example of a conventional data exchange. In the figure, 1 is a communication processing device, 2 is a maintenance operation device, and 3 is a communication processing device.
is a link, 4 is a communication line, 5 is a transmission system, 6 is an opposite communication processing device, 7 is a test line, 11 and 22 are line control units, 12 is a common control unit, 13 is a level conversion unit (LVC),
14 is a test start monitoring unit (SUP), 15 is a switching line control unit (SWC), 16 is a switching drive unit (SWA), 17
21 is a switching unit, 21 is a line testing unit, 100 is a line switching means,
Reference numeral 121 indicates a line testing section, and reference numeral 200 indicates a line testing means. Ryomei's Principle Diagram 1 Figure 3 Conventional Aro-ta Female Switching Moxibustion Figure 3

Claims (1)

[Scope of Claims] Comprising a plurality of communication processing devices (1) each accommodating a plurality of communication lines (4), and a maintenance operation device (2) that controls maintenance operations of each of the communication processing devices (1). In the communication processing system, a test line (7) is provided to connect each communication processing device (1) and the maintenance operation device (2), and each communication processing device (1) is connected to the test line (7). a line switching means (100) for switching and connecting a communication line (4) designated by the maintenance operation device (2) via the service line (7) to the test line (7); Instruct the device (2) to switch and connect the communication line (4) to be tested to the test line (7) to each communication processing device (1) via the test line (7). The invention is characterized by providing a line testing means (200) for testing the communication line (4) that is switched and connected to the test line (7) via the test line (7) after the communication. Communication line test method.