JPS6276344A - Testing instrument for protocol conversion function - Google Patents

Abstract

PURPOSE:To easily test plural protocol operations having mutual relations with each other by providing a storage means that stores a simulate operation condition including a mutual relation test between the plural protocol operations. CONSTITUTION:When a protocol converter 20 is tested at a testing instrument 10, a protocol attribute and a simulate program are inputted from a display/ input part 11. The protocol attribute is informed to circuit control parts 14 and 15 and a main control part 16 from an attribute setting part 13, being held. The simulate program is stored at a memory part 12. At such a case, when the request of the simulate operation is inputted from the display/input part 11, the main control part 16 performs the analysis of the transmission of data and receiving data and stores the result of the simulate operation to the memory part 12 according to the simulate program. The operation is performed according to the protocol that is held.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a protocol conversion function test device for testing network constituent devices having a protocol conversion function.

[Technical background of the invention] Demand for network configuration devices having a protocol conversion function, such as protocol converters and gateway devices, is increasing with the spread of local area network technology, packet switching technology, etc. in recent years. Conventionally, testing during the development of such network configuration devices has been carried out in the same manner as testing the communication functions of computers, terminals, and the like. In other words, conventionally, a test device (
The method used was to connect a simulator (simulator) and check the operation.

[Problems with the Aotatami technology] However, the test equipment described above can usually only simulate the operation of one line at a time, and thus one protocol, so it is necessary to test the protocols of the network components one by one individually. All I could do was confirm that it worked. That is, with conventional test equipment, it is not possible to test the interrelationships between a plurality of protocol operations of the 'M tl generation equipment, which makes it difficult to automate testing.

[Objective of the Invention] This invention has been made in view of the above circumstances, and its purpose is to simultaneously simulate the production of multiple protocols of a device under test having a protocol conversion function, and to An object of the present invention is to provide a protocol conversion function test device capable of testing operations of a plurality of U-related protocols.

[Summary of the Invention] In this invention, a plurality of line control means each according to a protocol that can be set independently, and a test target '4A stomach having a protocol 1 to protocol conversion function are targeted, and the interrelationship of multiple protocol 1 to 1 call operations is targeted. Storage means for storing simulated operating conditions including tests and main control means are provided. The main control means is
Multiple times with the device under test according to the simulated operating conditions stored in the storage means! '! Data is transmitted and received via the IllN means to perform the specified simulation operation. Therefore, by performing a simulation operation by the main control means with each protocol of the device under test set in the plurality of line control means, operations of a plurality of interrelated protocols can be tested.

Embodiment 1 of the Invention FIG. 1 shows the configuration of a protocol conversion function test device (hereinafter simply referred to as device 1) 10 according to an embodiment of the present invention. In the figure, 11 is a display 2/input section forming a man-machine interface, and 12 is a memory section that stores a simulation program for testing a network configuration device having a protocol conversion function. 13 is an attribute setting section for setting the line protocol; 14. i5 is line 1
, 2, and 16 is a main control section that performs a simulation operation according to a simulation program stored in the memory section 12.

Figure 2 shows protocol conversion using the test device 10 of Figure 1! A connection example for testing a 4fl generation device, for example, a protocol converter is shown. In Figure 2,
20 is a protocol converter. Protocol converter 20
is connected to the test device 10 via lines 1 and 2.

Next, the operation of the test apparatus 10 in the connected state shown in FIG. 2 will be explained.

Test 1 - Test 1 of protocol converter 20 by device 10
~? To do this, protocol settings and simulation program settings (simultaneous operation programming) are required. The above setting operation is performed based on the protocol attribute input and the simulation program input from the display/input section 11. Now, when the protocol attribute corresponding to the protocol converter 20 is input from the display/input section 11, the attribute setting section 13 converts the protocol attribute to the line 1.
111 section 14.15 and 1 control section 16 are notified. The line control units 14 and 15 and the main υj control unit 16 hold the protocol attributes notified by the a property setting unit 13. As a result, subsequent simulating operations follow the above-mentioned retention protocol. Further, when a simulation program is input from the display 7' large input 11, the main control section 16 stores the program in the memory section 12. The simulation program includes specific control JIl data, a step of transmitting information, a step of analyzing received data, a step of monitoring time, etc.

Now, with the above settings of protocols 1 to 1 and the settings of the simulation program completed, display 7/input section 11
When there is a simulation operation request input from the main control unit 16
starts the simulated operation. That is, the main control section 16
According to the simulation program stored in the memory section 12, data transmission via the line control section 14.15, analysis of received data from the line control section 14.15, time monitoring, and memory of simulation operation results. Storage processing in the unit 12 is performed.

The above test result is the test result [!] from the display/input section 11. Upon request input, the same display/' input section 11 displays the request. That is, when the main control section 16 receives a test result confirmation request input from the display/' input section 11, the main control section 16 causes the memory section 12 to
The display/input unit 11 reads the test results stored in the
Display the test results.

Next, a specific example of the simulation operation according to the simulation program will be explained with reference to the flowchart in FIG. It is assumed that the protocol conversion @20 performs protocol conversion between protocol A and protocol B.

First, the main control unit 16 transmits a call request A according to protocol A to the line 1 via the line control unit 14 in step S1.
), and sets a timer (step S2). The call request A on the line 811 is transmitted to the protocol converter 20.

The protocol conversion Q20 converts the calling request A transmitted from the line 11 into the protocol, and transmits the calling request B according to the protocol B to the line 2.

After setting the timer in step S2, the main control unit 16 checks whether data is received from the line 2 or whether a timeout has occurred, for example, every fixed cycle (step S3). When the main control unit 1G detects data reception or timeout, it resets the timer (step S4), and checks whether or not it has received the correct call request B from step 12 (step 85). If the data received from the line 2 is not the correct call request B, or if there is a timeout, the main control unit 16 determines that there is an abnormality in the protocol converter 20, and determines that the test result is an error (step S6). On the other hand, if the data received from line 2 is the correct call request B, the main control section 1G proceeds to the test process described below.

First, the main control unit 16 transmits an incoming call instruction according to the protocol to the line 2 via the line control unit 15 (Step S7)
, set a timer (step $8.). Incoming call instruction B on line 2 is transmitted to protocol converter 20 . The protocol converter 20 receives the incoming call instruction B transmitted from the line 2.
Converts the protocol and sends an incoming call instruction A using protocol A to line 1.

After setting the timer in step S8, the main control unit 16 checks whether data has been received from the line 1 or whether a timeout has occurred, for example, every fixed cycle (step S8).
9). When the main control unit 1G detects data reception or timeout, it resets the timer in step sio.
>, it is checked whether a correct incoming call instruction A has been received from line 1 (step 511). If the data received from line 1 is not the correct incoming call instruction A, or if there is a timeout, the main control unit 16 sends the protocol converter 2
It is determined that there is an abnormality of 0, and the test result is determined to be an error (step 86). On the other hand, if the data received from the circuit 11!1 is the correct incoming call instruction A, the main control unit 16 determines that the test result is normal (step 512).

[Effects of the Invention] As described in detail above, according to the present invention, it is possible to simultaneously simulate the operations of a plurality of protocols in a network component device having a protocol conversion function, and therefore it is possible to test the interrelationship of the operations of the plurality of protocols.

Therefore, it becomes possible to test many items with less effort, and it becomes possible to automate tests, save labor, and repeat tests.

[Brief explanation of drawings]

FIG. 1 is a block configuration diagram showing an embodiment of the present invention, and FIG. 2 is a diagram showing an example of 1 & continuation of 9 cases of "testing the protocol converter 20 using the test device 10 of FIG. 1. Third
The figure is a flowchart for explaining the operation. 1.2... Line, 10... Test device (protocol conversion function test device), 12... Memory section, 13...
・Attribute setting section, 14.15... Line control section, 16...
- Main control unit, 20... protocol converter (device under test). Applicant's agent Patent attorney Takehiko Suzue □ □ □ □ □ 1 Figure 1 Figure 2

Claims (1)

[Claims] a plurality of line control means each according to independently settable protocols; a storage means for storing simulated operating conditions including interrelationship tests of multiple protocol operations for a device under test having a protocol conversion function; The device is characterized by comprising a main control means for transmitting and receiving data to and from the device under test via the plurality of line control means to perform a specified simulation operation according to the stored simulation operation conditions. Protocol conversion function test equipment.