JPH0256871B2 - - Google Patents

Description

[Detailed Description of the Invention] (A) Technical Field of the Invention The present invention relates to a load generation processing method for an electronic switching system, and particularly to a load generation method that is directly connected to the electronic switching system and simulates a switching channel system. a load generation processor in the load generation system to generate a pseudo load generation in the electronic switching system;
The present invention relates to an electronic switching system load generation processing method that allows testing of the electronic switching system described above to be performed relatively easily.

(B) Technical Background and Problems Traditionally, when testing and evaluating electronic switching systems, devices such as actual telephones, devices that simulate telephones, trunk testers that simulate the other party's stations, etc., have been used to test and evaluate electronic switching systems. The above tests are performed by connecting to the system's communication line. However, in the case of this method, when considering a case where the processing capacity of the electronic switching system is to be tested to its limits, the test is carried out by setting the electronic switching system to its maximum configuration and equipping telephones and pseudo devices in a corresponding manner. It is necessary to do so. In addition, when testing an electronic switching system to be delivered to a customer, it is necessary to prepare a system of the same scale as the customer's delivery system in terms of telephones, etc., which is virtually impossible.

(C) Object and Structure of the Invention The object of the present invention is to solve the above-mentioned problems, and to simulate a part of the control system and communication line system in an electronic switching system by a load generation system having a load generation processor. and
Its purpose is to facilitate the testing and evaluation of electronic switching systems. Therefore, the electronic switching system load generation processing method of the present invention is designed to simulate operations including load generation for an electronic switching system including a main processor and one or more call processors. In the system load generation processing method,
A channel interface device is connected to each of the call processors through a network interface, and a communication path interface device is connected to the main processor through the same interprocessor communication interface as each of the call processors. a load generation system including a control system interface device that controls the call processor and a load generation processor that controls the call path interface device and the control system interface device; The generating processor and the load generating processor each have a built-in accessible memory device to mediate the transmission and reception of information between the two processors, and the control system interface device, together with the load generating processor, functions as a call processor in the electronic exchange system. It is characterized in that it performs the following functions and mediates control information between the main processor and each of the call processors. This will be explained below with reference to the drawings.

(D) Embodiments of the Invention FIG. 1 shows an embodiment of the load generation processing method according to the present invention, FIG. 2 shows the configuration of an embodiment of the communication path interface device shown in FIG. 1, and FIG. 1 shows the configuration of an embodiment of the control system interface device shown in FIG.

In FIG. 1, 1 is an electronic switching system, 2 is a load generation system, 3 is a main processor,
Reference numerals 4 and 5 are call processors that control the communication path system in an actual exchange, and 6 is a communication path interface device that controls the above-mentioned call system.
7 which is connected to the processors 4 and 5 via network interface buses 13 and 14 and mediates the transmission and reception of signals equivalent to the actual communication path system;
is a control system interface device that is connected to the main processor 3 via an interprocessor communication interface bus 10, and mediates control to perform the same functions as the call processors 4 and 5, and This shows that control information is sent and received to and from the processors 3, 4, and 5 via control lines 9, 11, and 12. In addition, illustration 15,1
Each number 6 represents a bus.

As will be described later with reference to FIG. 2, the communication path interface device 6 has a built-in memory device, and uses the memory device as a relay to establish a communication path between the call processors 4 and 5 and the load generation processor 8. Mediates the sending and receiving of information related to. As a result, the call processors 4 and 5 operate as if the communication line hardware is actually connected to the buses 13 and 14. Furthermore, as will be described later with reference to FIG. 3, the control system interface device 7 has one feature in which the main processor 3 has a call processor other than the illustrated call processors 4 and 5. Intermediates control information for display. Second, since the illustrated load generation processor 8 is generally configured with a microprocessor, the amount of information processing within the electronic exchange system 1 and the amount of information processing may differ greatly. Control such as temporarily stopping the processing of each processor 3, 4, 5 in the electronic exchange system 1 is relayed from there.

Needless to say, the load generation system 2 generates a load in a manner that creates a situation equivalent to that of an apparent connection to the electronic switching system 1 without actually connecting communication line hardware to the electronic switching system 1. It is. The following communication path interface device 6
The configuration of the control system interface device 7 will be briefly explained below.

FIG. 2 shows the configuration of an embodiment of the communication channel interface device 6, in which numerals 4, 6, and 8 correspond to those in FIG. 1, 6-1 is an order receiving section, and 6-2 is an order analyzing section. , 6-3 is a response sending unit, 6-4 is an order storage memory, 6-5 is a response information storage memory, 6-6
represents the write address register.

A network control order from call processor 4 is received by order receiving section 6-1. The received order is analyzed by the order analysis section 6-2. As a result, two types of operations are performed depending on whether the order is a scan order or the case where the order is a non-scan order. That is, if it is a scan order, it is necessary to immediately return a response to the call processor 4, and the information is read from a predetermined address in the response information storage memory 6-5 and sent to the response sending unit 6-3. is sent back to the call processor 4. The predetermined address at this time is determined by the order analysis section 6-2 by determining the information contained in the received order. If it is a non-scan order,
The response sending section 6-3 returns information notifying that the order has been received to the call processor 4, and the received order is stored in the order storage memory 6-4.

On the other hand, the load generation processor 8 is configured to read the contents of the order storage memory 6-4 and to read/write the response information storage memory 6-5 as desired. When the order analysis unit 6-2 writes an order to the order storage memory 6-4, it writes the address to the write address register 6-6, and the load generation processor 8 reads this content to process the order. is received. This will be explained below in connection with specific operations.

(1) Call origination [scan order] The load generation processor 8 sends information indicating that a call is to be made, such as information, to an address location on the response information storage memory 6-5 corresponding to the accommodation location of the subscriber who is about to make a call. Write logic "1". call·
Processor 4 issues scan orders to all accommodation locations, ie, all address locations of response information memory 6-5, at a constant cycle of, for example, 100 ms. Upon receipt of a scan order,
Response information memory 6 corresponding to the corresponding accommodation position
It is read from address location -5 and sent back to call processor 4. Of course, a message to that effect is also sent back from the accommodation position where no call has been made.

(2) Dial Tone (DT) Reception (Non-Scanning Order) A dial tone transmission order is sent from the call processor 4 to the calling subscriber location. Since this order is a non-scan order, it is stored in the order storage memory 6-4 and read out by the load generation processor 8. Since the order contains the accommodation location information, the load generation processor 8 can know to which subscriber the dial tone came.

(3) Sending dial (scan order) The call processor 4 issues a scan order to receive dialed digits in the same way as in the case of the above-mentioned call origination. On the other hand, the load generation processor 8 sets numerical information to the address position on the response information storage memory 6-5 corresponding to the accommodation position.
For example, in the case of a dial pulse, by setting logic "1" or logic "0" for a predetermined period of time, the pulse signal can be transmitted in a corresponding manner.

(4) Receiving a ring back tone or ringing tone (non-scanning order) The call processor 4 sends a ring back tone to the originating subscriber and a ringing tone to the terminating subscriber. Send out. At this time, the operation is as shown in operation (2) above.
This is similar to the case of tone reception.

(5) Path connection [non-scan order] Call processor 4 connects the ring back
A path connection order (path reservation) is sent out approximately at the same time as the tone or ringing tone is sent out. The above operation also applies when sending the path connection order.
This is similar to case (2). Note that the dial tone ring back tone, ringing tone, and path connection order can be distinguished from each other by the contents of the order sent from the call processor 4.

(6) Called side response [scan order] The load generation processor 8
writes information indicating that the called party is off-hook. Call processor 4 learns of this through the scan order. The operation at this time is the above operation (1)
This is similar to the case of calling shown in .

(7) Answer to the originating subscriber (non-scanning order) When the called party answers, the call processor 4 issues an order to that effect to the originating subscriber. This order is a non-scan order,
It is read by the load generation processor 8, and it is known that the call is now possible.

(8) Telephone call Nothing special is done, and the load generation processor 8 performs the next operation (disconnection) after a certain period of time has elapsed.

(9) Disconnection (Scan Order) The call processor 4 writes information to the effect of disconnection to the calling subscriber in the response information storage memory. In fact, during the call shown in operation (8) above, the call processor 4 continues to send out disconnection monitoring orders at predetermined intervals.

(10) Release request [non-scan order] When the originating subscriber disconnects, a release order is issued to the called subscriber. This order is
This is a non-scan order, and is read by the load generation processor 8, which performs disconnection processing on the called side. The process of disconnection on the called subscriber side is the same as the disconnection shown in operation (9) above.

As described above, communication path system processing is performed in a pseudo manner using the memory device on the communication path interface device 6 as a relay.

FIG. 3 shows the configuration of an embodiment of the control system interface device 7. As shown in FIG. Codes 7, 8, 9, 10, 1 in the diagram
1 and 12 correspond to FIG. 1, 7-1 is a communication channel, 7-2 is a clock receiving section, 7-3 is a start control section, and 7-4 is a stop control section.

The communication channel 7-1 is a main processor call processor for simulating a call processor.
Performs communication between processors. For example, a polling signal is sent from the main processor 3 at a predetermined cycle of every 16 ms, but the polling signal is transmitted from the communication channel 7-
1 sends back response information in response. The contents of the information include (i) information regarding the main processor 3, such as statistical information and transmission restriction information from the main processor, and (ii) information regarding other call processors, such as information regarding other call processors 4 and 5. It can be divided into subscriber status, etc.

The clock receiving section 7-2 is connected to the load generation system 2.
This is for pulling the clock of system 1 into load generation processor 8 in order to synchronize it with electronic conversion system 1. This is to prevent real-time performance from being degraded by stop control, which will be described later.

Start control section 7-3 and stop control section 7-4
has the following role. That is, the load generation processor 8 handles multiple networks and multiple calls.
It must have the processing power to control multiple processors simultaneously. In other words, it would normally require processing power greater than that of an electronic exchange. However, as a practical matter, it is not possible to prepare such a processor. For this reason, the processing capacity of the load generation processor 8 side becomes insufficient, and it becomes necessary to temporarily stop the processing of the electronic exchange system 1 side. For this reason, for example:) if the memory in the load generation processor 8 is insufficient;) if a response must be returned to the electronic switching system 1 within a predetermined time and the processing cannot be completed in time; When the order storage memory 6-4 in the interface device 6 becomes full, etc., the stop control section 7-4 is activated. The start control unit 7-3 is activated when canceling the stopped state.

(E) Effects of the Invention As explained above, according to the present invention, a load generation system can be connected to the electronic switching system to test and evaluate the electronic switching system without connecting the communication line hardware in the electronic switching system. becomes possible. By intervening a control system interface device, the functions of some call processors existing on the exchange system side can be imitated on the load generation system side as needed.
The flexibility of processing execution when performing the above tests and evaluations is extremely high.

[Brief explanation of drawings]

FIG. 1 shows an embodiment of the load generation processing method according to the present invention, FIG. 2 shows the configuration of an embodiment of the communication path interface device shown in FIG. 1, and FIG. 3 shows the configuration of the control system interface shown in FIG. 1 shows an example configuration of a face device. In the figure, 1 is an electronic switching system, 2 is a load generation system, 3 is a main processor, 4 and 5 are call processors, 6 is a communication path interface device, 7 is a control system interface device, and 8 is a load generation processor. represents.

Claims (1)

[Claims] 1. In an electronic switching system load generation processing method that simulates operations including load generation for an electronic switching system including a main processor and one or more call processors, network
a control system interface device connected to the main processor through the same interprocessor communication interface as each of the call processors; The communication path interface device includes a load generation system including an interface device and a load generation processor that controls the control system interface device, and the call path interface device includes a memory device that can be accessed by the call processor and the load generation processor, respectively. The control system interface device is built-in and mediates the transmission and reception of information between both processors, and also functions as a call processor in the electronic exchange system together with the load generation processor. An electronic switching system load generation processing method characterized by mediating control information between the call processor and each of the above-mentioned call processors.