JPH05244268A - Exchange system monitoring device - Google Patents

Abstract

PURPOSE:To externally monitor the normality of the service operation in an overall way by interconnecting an exchange system and a monitoring node with a common line signal system No.7. CONSTITUTION:Monitoring nodes 4, 4' monitoring an exchange system 6 are connected with trunk line interfaces 18, 8', subscriber dummy interfaces 9, 9', and signal link interfaces 14, 14'. The monitoring state is managed by a system management section 5 and the processing of reset or the like is implemented by a maintenance function section 7 at fault detection. The link interface 14 interconnects the system 6 and the signal link 3 and a No.7 protocol handler 18 executes the No.7 signal system protocol and a signal request from a scenario control function section 17 is processed to control the signal protocol. When a monitoring management section 19 detects a fault, the fault state information is informed to the management section 5. Thus, the normality of the service operation of the exchange system by the No.7 common line signal system of an ISDN is monitored externally in an overall way.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to ISDN NO. 7 Used for switching system using common line signaling. In particular, it relates to an operation monitoring technique for a switching system.

[0002]

2. Description of the Related Art A conventional switch operation monitoring apparatus monitors a normal operation of a switching system by generating a call activation signal from a pseudo trunk interface using an analog signal system and monitoring a confirmation signal from the switching system in response to the call activation signal. ing.

A conventional example will be described with reference to FIG. FIG. 5 is a block diagram of a conventional example.

In the conventional monitoring system, the switching system 6
Line connection interface 2 using the individual line signaling system
The activation signal 24 is generated from the monitoring device 21 connected to the communication device 3, and the activation confirmation signal 25, which is a response to the activation signal 24, is monitored, and thereby the normality of the operation of the exchange system 6 is determined.

[0005]

Since the conventional monitoring system is the individual line system, the common line signaling system NO. It is not possible to monitor the normality of the common line signaling method as described in No. 7. Further, the common line signaling system NO. In order to simulate and monitor the signal system including a large amount of complicated information in the signal as in 7, it is impossible to set various input information in the conventional system having only the start signal. Further, it is impossible to analyze various output information from the exchange system. In addition, the conventional monitoring system uses only the activation signal and the activation confirmation signal for it,
Among the call connection functions of the switching system, this is a normality confirmation method limited to activation processing. Therefore, there is a problem that a series of call connection services and various protocols and data exchange services used in common line signaling cannot be monitored in a pseudo manner.

The present invention has been made under such a background, and the ISDN NO. (7) An object of the present invention is to provide a switching system monitoring device that comprehensively monitors the normality of all service operations of the switching system using the common line signaling system from the outside.

[0007]

The present invention is based on the ISDN N
O. In a switching system monitoring device including a first monitoring node connected to a switching system having a common line signaling system and monitoring the switching system, in addition to the first monitoring node, Two monitoring nodes are provided, and the first and second monitoring nodes are network control means for forming a monitoring switching communication network including the switching system, and the monitoring switching communication network formed by the network control means. And a communication control means for simulating various services in the ISDN, and means for transmitting and receiving test signals to and from the monitoring exchange communication network.

[0008]

Operation: Two monitoring nodes are prepared and connected to the switching system by the trunk line interface, subscriber pseudo interface, and signal link interface.

This monitoring node itself also has an independent common line signaling system NO. It is a 7-signal node and has a signal point code assigned for a supervisory node in the signaling network to which the switching system belongs. The signal point code is commonly used in the target signal network. Further, the monitoring node has a scenario control function unit for pseudo generation of various service scenarios including call connection.

The scenario control function unit includes a call connection scenario management unit that manages a scenario related to a call connection service and a non-line correspondence scenario management unit that manages a scenario related to a non-line correspondence service.

The scenario control function unit is connected to the monitoring management unit, and the monitoring management unit manages the monitoring status and controls the scenario activation. When an abnormality is detected, the abnormality status information is collected and notified to the system management unit. Further, the information is notified to the maintenance function section of the exchange system, and the exchange system takes appropriate action such as system reset.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the device of the embodiment of the present invention will be described with reference to FIGS. FIG. 1 is an overall configuration diagram of an embodiment of the present invention. FIG. 2 is a block diagram of the monitoring nodes 4 and 4 '.

The present invention relates to ISDN NO. 7 Switching system 6 connected to switching system 6 with common line signaling
In a switching system monitoring device having a first monitoring node 4 for monitoring a network, a second monitoring node 4'connected by signal links 3 and 3'in addition to the first monitoring node 4.
And the first and second monitoring nodes 4 and 4 '.
Is a network control means for forming a monitoring exchange communication network including the exchange system 6. 7 Protocol handler 18
And a scenario control function unit 17 as communication control means for causing the monitoring exchange communication network formed by the network control means to execute various services in ISDN in a simulated manner, and test signals are transmitted and received to and from the monitoring exchange communication network. And a test tone data transmitting / receiving unit 12 as a means for performing the same.

Next, the operation of the apparatus of the present invention will be described.

Monitoring nodes 4 and 4'for monitoring the switching system 6 to be monitored are connected by trunk line interfaces 8 and 8 ', subscriber pseudo interfaces 9 and 9', and signal link interfaces 14 and 14 '. .. Furthermore, the monitoring status is managed by the system management unit 5, and when an abnormality is detected, the information is notified to the maintenance function unit 7 of the exchange system 6 and appropriate measures such as system reset are performed.

The monitoring node 4 comprises a trunk line interface 8 for interfacing with the exchange system 6 and an interoffice speech line, and a subscriber pseudo interface 9 for connecting to a subscriber line of the exchange system 6. The pseudo subscriber interface 9 is a general home telephone and ISD.
It has the same functions as N terminals. The test tone data transmission / reception unit 12 has a function of transmitting or receiving a test sound or test data for confirming the normality of the connection of the communication line in the pseudo scenario executed by the scenario control function unit 17.

The scenario control function unit 17 includes a call connection scenario management unit 15 that manages a scenario related to a call connection service, and a non-line correspondence scenario management unit 16 that manages a scenario related to a non-line correspondence service. ..

The signal link interface 14 connects the signal link 3 to the switching system 6, and the NO. 7 protocol handler 18 is NO. The signal protocol of the 7-signal system is realized, various signal transmission / reception requests from the scenario control function unit 17 are handled, and the signal protocol is controlled.

The monitoring management unit 19 manages the monitoring status and controls the activation of the scenario. If an abnormality is detected,
The abnormal situation information is collected and notified to the system management unit 5.

Next, with reference to FIGS. 3 and 4, an example of a scenario executed by the apparatus of the present invention will be shown and its operation will be described. FIG. 3 is a diagram showing a scenario in the case of an incoming call connection. FIG. 4 is a diagram showing a scenario in the case of relay call connection.

According to an instruction from the system management unit 5, the monitoring node 4 activates an incoming call. At this time, the activation signal IAM includes a subscriber number for selecting a subscriber line connected to the monitoring node 4. After that, the signaling procedures for performing call setting are "IAM", "ACM", "call", and "A".
NM "and" response "are sent and received between the monitoring nodes 4 and 4 '.

When the line is set up between the monitoring nodes 4 and 4 ', the test tone data transmitting / receiving section 12 in each monitoring node 4 and 4'is set up with the lines 16 and 1.
Connect to 6 '. Thereby, the monitoring nodes 4 and 4 '
Send and receive test sound or test data to check the line connection between the two.

When the test is completed, a release signal REL is generated to disconnect the line. If this scenario is not satisfied, for example, the activation completion signal A for the activation signal IAM
If the CM is not returned, it is determined that the exchange system 6 is abnormal.

Further, FIG. 4 shows an example of a scenario regarding a relay connection executed by the device according to the present invention.
In this case, the monitoring node 4 serves as the transmitting station and the monitoring node 4 'serves as the receiving station.

[0025]

The switching system and the monitoring node have the common line signaling system No. By forming a monitoring switching communication network connected by 7, it is possible to input various monitoring information and service scenarios from the monitoring node to the switching system. Further, the two monitoring nodes allow the service passing through the switching system to be simulated, and the normality of the service operation of the switching system can be comprehensively monitored from the outside.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram of an embodiment of the present invention.

FIG. 2 is a block diagram of a monitoring node.

FIG. 3 is a diagram showing an incoming call connection scenario.

FIG. 4 is a diagram showing a relay call connection scenario.

FIG. 5 is an overall configuration diagram of a conventional example.

[Explanation of symbols]

 1, 1'line interface 2, 2'subscriber line interface 3, 3'signal link 4, 4'monitoring node 5 system management unit 6 switching system 7 maintenance function unit 8, 8'trunk line interface 9, 9'subscriber Pseudo-interface 12 Test tone data transmitter / receiver 14, 14 'Signal link interface 15 Call connection scenario manager 16 Non-line compatible scenario manager 17 Scenario control function 18 NO. 7 Protocol Handler 19 Monitoring Management Unit 21 Monitoring Device 23 Line Connection Interface 24 Activation Signal 25 Activation Confirmation Signal

Claims (1)

[Claims] 1. The ISDN NO. In a switching system monitoring device including a first monitoring node connected to a switching system having a common line signaling system and monitoring the switching system, in addition to the first monitoring node, Two monitoring nodes are provided, and the first and second monitoring nodes are network control means for forming a monitoring switching communication network including the switching system, and the monitoring switching communication network formed by the network control means. 2. A switching system monitoring device comprising: communication control means for simulating various services in ISDN; and means for mutually transmitting and receiving a test signal to and from the monitoring switching communication network.