KR19990020623A - How to measure slip incidence - Google Patents

Abstract

The present invention relates to a method of measuring the slip incidence of the network synchronizer to measure the slip occurrence rate when the slip occurs in the network synchronizer of the electronic switch. Since only the number of occurrences and when the slip occurred for 24 hours can be provided from the system, when the slip occurs among the three network synchronization device units configured as triplex and the synchronization reference clock input from a plurality of other stations It is not possible to know in which network part the slip incidence rate is high due to not knowing where the slip occurred, and there was a drawback that it was impossible to measure which of the other countries has a high slip incidence rate. To communicate between stations By measuring the rate of occurrence of slip that occurs at a frequency mismatch in a frequency matched to keep the same timing to prevent the performance degradation due to slip in the exchange system, enhance the performance of the systems by the exchange, to which can improve the above-mentioned drawbacks.

Description

How to measure slip incidence

The present invention relates to a method for measuring slip incidence occurring in a network synchronizer, and more particularly, to a method for measuring slip incidence of a slipper in which a slip is generated when slip occurs in a network synchronizer of an all-electronic exchanger.

In the prior art, when a slip occurs in the network synchronization device unit, the operator may receive information from the system about the number of slips and when the slip occurs during 24 hours. If the slip occurs among the sync reference clocks inputted from the synchronous device unit and a plurality of other stations, it is not possible to know where the slip occurrence rate is high because of which slip is generated, and which of the other stations has the highest slip occurrence rate. There was a drawback that was impossible to measure for.

The present invention has been made to solve the above-mentioned drawbacks of the prior art, to prevent the performance of the exchange system due to the loss of data due to the slip, to prevent the slip by immediately identifying the location where the slip occurred occurred to inform the operator It is an object of the present invention to provide a method for measuring slip occurrence rate.

In order to achieve the above object, the present invention provides a switch network that includes: an access switching subsystem (ASS), an interconnection network subsystem (INS), and an interconnection network control subsystem. A synchronization device received through the digital relay line matching unit and the synchronization device unit as an upper block of the network synchronizer device unit for distributing the reference clock inputted from the system to the system and transmitting abnormal state information to an upper level when the abnormal state occurs. And a central control subsystem (CCS) in the network control subsystem for synchronizing the entire exchanger system clock by generating a clock synchronized with the synchronization reference signal with the input of the reference signal as the input. An exchange system comprising an input / output unit, the exchange system At the first start-up, the network synchronizer device unit requests a reference time to the system time management unit that manages the time of the switching system, and receives the system reference time, and receives a reference time from the system time management unit, where the reference time slips. And storing by reference time and transmitting to the network maintenance processor in charge of maintenance of the network control system through the central control subsystem, and the network maintenance processor counting at a predetermined time period based on the received time. And detecting whether slip has occurred when the reference clock is input to the network synchronizer, and if it is detected that the slip has occurred, the number of the synchronizer device portion which is the current master when the slip occurs and the currently selected reference clock number to the synchronizer portion; Steps to transmit, and sleep occur Receiving the number of the synchronizer device portion, which is the current master at the time, and the currently selected reference clock number, and transmitting the received information to the network maintenance processing unit, wherein the network maintenance processing unit transmits slip occurrence information to the network maintenance processing unit in the network maintenance processing unit. Generating and storing by reference time information for each network synchronizer device, an operator requesting and receiving slip occurrence rate information from the network maintenance processing unit through the input / output unit and the central control subsystem, and the maintenance matching unit slips into the input / output unit And displaying the occurrence rate in the form of a slip occurrence number / accumulated date or slip occurrence number / 1 day for each corresponding synchronizer device unit and the reference clock. To provide.

1 is a part configuration diagram of an all-electronic exchanger suitable for measuring the slip incidence rate of the network synchronizer according to the present invention,

Figure 2 is a flow chart showing the step of measuring the slip incidence of the network synchronizer in the all-electronic exchange according to the present invention.

<Description of the code | symbol about the principal part of drawing>

110: relay line matching exchange subsystem 112: digital relay line matching unit

130: network control subsystem 132: network maintenance processing unit

134: system time management unit 136: network synchronization unit

138: first network synchronizer device 140: second network synchronizer device

142: third network device device 150: central control subsystem

152: maintenance matching unit 154: execution control unit

156: menu and command analysis unit 158: input and output control unit

160: input and output unit

The above and other objects and various advantages of the present invention will become more apparent from the preferred embodiments of the invention described below with reference to the accompanying drawings.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.

Referring to FIG. 1, the illustrated exchanger is composed of a relay line matching exchange subsystem 110, a network control subsystem 130, a central control subsystem 150, and an input / output unit 160, and exchanges information with each other. .

The relay line matching exchange subsystem 110 includes subscriber and relay line matching, time switches, various signaling devices, and the like to perform most call processing functions and self-operating maintenance functions, and has a horizontally distributed structure.

The network control subsystem 130 performs a role of matching and connecting the network devices between various match exchange subsystems or between any match exchange subsystem and the central control subsystem 150.

In addition to the above-described functions, the network control subsystem 130 performs centralized functions such as number translation, route control, and space switch connection among call processing functions, and includes a network synchronizer to generate and distribute a system clock.

The central control subsystem 150 performs the overall operation and maintenance functions of the system, and provides system-wide maintenance, test and measurement, billing, and statistical functions, as well as mass storage control management, operators such as cartridge tapes and magnetic tape hard disks. It performs various input and output door control functions and data channel connection function with other systems.

The digital relay line matching unit 112 in the relay line matching exchange subsystem 110 transmits / receives a voice channel signal, a signal channel signal, and a synchronization reference clock signal through a relay line between stations, thereby matching the input / output between the stations, thereby providing a voice channel signal. The signal channel signal and the synchronization reference clock signal light are transmitted to the other station or to the network control subsystem 130.

The network synchronizer device units 138, 140, and 142 in the network control subsystem 130 distribute a reference clock input from the digital trunk line matching unit 112 to the system, and transmit abnormal state information to a higher level when an abnormal state occurs. As a block, the synchronizer device sections 138, 140, and 142 are composed of triplets, and the currently used synchronizer device sections are used as masters, the waiting boards, and the synchronizer device sections 138, 140, and 142 generate slips. It detects this and transmits the number of the device of the synchronizer device currently used as the master and the selected reference clock number to the upper part.

For example, in the TDX-100 system, the synchronizer device units 138, 140, and 142 are tripled and tripled in a master, slave, and standby state to the master. In case of an error, the mode switches from standby to slave, from slave to master, and from standby to slave.

The network synchronizer unit 136 in the network control subsystem 130 is an upper block of the network synchronizer device units 138, 140, and 142. The digital relay line matching unit 112 and the network synchronizer device units 138, 140, and 142 are connected to each other. The synchronization reference signal received through the input is generated and supplied to the system by a clock synchronized with the synchronization reference signal, thereby matching the whole exchange system clock.

The slip incidence function of the network synchronizer unit 136 is a function of the corresponding synchronizer device unit at the time of the first start-up and operation of the system. By counting together with the master number of 138, 140 and 142 and the selected reference clock information, the slip incidence rate until the system is restarted is measured and measured, so that the operator can use the synchronous device unit 138, based on this measurement data. 140 and 142 determine the performance and whether the input reference clock is abnormal, and supplies a stable clock to the system.

The system time management unit 134 in the network control subsystem 130 receives a time request from the network synchronizer 136 when the system is first started, and transmits a reference time through the network synchronizer 136 to the network maintenance processor 132. Then, the network maintenance processing unit 132 increases the number of days by counting each of the 24 hours based on the received time.

When the operator's slip occurrence rate measurement data request is input to the network maintenance processing unit 132 through the maintenance matching unit 152, the network maintenance processing unit 132 may perform the slip count / day for each device and the reference time. The occurrence rate is output to the input / output unit 160 through the central control subsystem 150 in the form of slip occurrence number / days.

The input / output control unit 158 reconfigures and outputs the output data to match the output mode. The input / output control unit 158 reconfigures the input data to match the switch mode and matches the input / output unit 160.

The menu and command analysis unit 156 performs syntax and semantic analysis on the command input by the operator to inform the operator of the result of the syntax and semantic analysis, and executes command information so that the command can be executed in the corresponding block. To send.

The execution control unit 154 provides an interface to the user program, transmits the input information received from the menu and command analysis unit 156 to the maintenance matching unit 152 to process the input information, and maintains the maintenance matching unit. The output information received from 152 is transmitted to the input / output controller 158 through the menu and command analyzer 156.

The maintenance matching unit 152 receives information from the execution control unit 154 for various instructions requested by the operator for maintenance, checks simple MMC parameters, and checks the state of the processor on which the instruction is to be executed. Send an error message including the abnormal cause.

The maintenance matching unit 152 is configured to receive a command when the sleep occurrence rate measurement request of the operator is input through the input / output control unit 158, the menu and command analysis unit 156, and the execution control unit 154. To the network maintenance processing unit 132.

The network maintenance processing unit 132 receiving the sleep occurrence rate measurement request command reads data stored in the network synchronizer sleep table buffer, and the input / output unit through the execution control unit 154 and the input / output control unit 158 through the maintenance matching unit 152. Transmit to 160.

The input / output unit 160 receives the operator's command to execute the received command, receives the alarm information and the slip occurrence rate of the exchanger through the input / output control unit 158, displays them to the operator, and periodically gives the operator the operating state of the exchange. In response to the request of the operator, the other operating state of the exchange is received from the input and output control unit 158 and displayed to the subscriber so that the operator can easily know the information of the exchange.

Referring to FIG. 2, a flowchart for measuring a slip incidence rate of the synchronizer unit 136 in the all-electronic exchanger will be described. When the system is first started, the synchronizer device units 138, 140, and 142 move to the synchronizer unit 136. Request a reference time (step 202).

The network synchronizer 136 requests the reference time to the system time manager 134 (step 204).

The system time management unit 134 reports the reference time to the network synchronizer 136 so that the network synchronizer 136 knows the reference time (step 206).

The network synchronizer 136 receives the reference time from the system time management unit 134 and transmits the reference time to the network maintenance processor 132 and the network synchronizer device units 138, 140, and 142 (step 208).

The network maintenance processing unit 132 increases the date value of the network synchronizer sleep table by 1 by counting the period 24 hours based on the received time (step 210).

The network synchronizer detects whether a slip occurs when the reference clock is input from the digital relay line matching unit 112 to the network synchronizer 136 (step 212).

If it is detected that the slip has occurred, the synchronizing device section 138, 140, 142 is configured to display the number of the synchronizing device section 138, 140, 142, which is the current master when the slip has occurred, and the currently selected reference clock number. 136) (step 214).

The synchronizer unit 136, which has received the number of the synchronizer device unit 138, 140, 142 which is the current master when the sleep occurs from the synchronizer device unit 138, 140, 142 and the currently selected reference clock number, sleeps. When this occurs, the network device unit 138, 140, 142, which is the current master, and the currently selected reference clock number are transmitted to the network maintenance processing unit 132 (step 216).

The network maintenance processing unit 132 generates slip storage information in the network maintenance processing unit 132 and stores the network synchronizer sleep table buffer for each reference time information for each network device (step 218).

The operator requests slip occurrence rate information to the network maintenance processor 132 through the input / output unit 160 and the central control subsystem 150 (step 220).

When the operator's sleep occurrence rate information request is received by the network maintenance processing unit 132 through the execution control unit 154 and the maintenance matching unit 152 via the menu and command analysis unit 156, the network maintenance processing unit 132 Transmits the slip occurrence rate information to the maintenance matching unit 152 (step 222).

The maintenance matching unit 152 is a network synchronizer device unit 138, 140, 142 in which slip occurs in the input / output unit 160 through the execution control unit 154, the menu and command analysis unit 156, and the input / output control unit 158. The occurrence rate is displayed on the input / output unit 160 in the form of the number of slip occurrences / accumulated date or the number of slip occurrences / 1 day per reference clock (step 224).

As described above, the present invention measures the incidence of slip caused by frequency mismatch in frequency matching to maintain the same timing in order to communicate between one station and any other station, thereby reducing performance degradation due to sleep in the exchange system. This improves the quality of service at the exchange by preventing and improving the performance of the exchange system.

The principles of the invention have been described above in connection with specific devices, which are described by way of example only, and are not limited to the spirit of the invention as described in the appended claims.

Claims (1)

The switch may be configured in the access switching subsystem (ASS) 110, the interconnection network subsystem (INS) 130, and in the connection network subsystem 130, A network synchronizer device unit 138, 140, 142 for distributing a reference clock input from the system 110 to the system and transmitting abnormal state information to a higher level when the abnormal state occurs; and the network unit device 138, 140, As the upper block of the block 142, the synchronous reference signal received through the synchronous device unit 138, 140, 142 is inputted, and a clock synchronized with the synchronous reference signal is generated and supplied to the system so as to supply the entire exchanger system clock. In the exchange system consisting of a network synchronizer 136 in the network control subsystem 130, the central control subsystem (CCS) 150 and the input and output unit 160 to match the Standing, Receiving a system reference time by requesting a reference time to the system time management unit 134 for managing the time of the exchange system when the switch system first starts up; A network maintenance processor 132 which receives a reference time from the system time management unit 134 and stores the reference time for each device having a slip and a reference time, and maintains the network control system through the central control subsystem 150. Transmitting at); The network maintenance processing unit 132 counting a preset time period based on the received time; Detecting whether a slip occurs when the reference clock is input to the network synchronizer 136; If it is detected that the slip has occurred, transmitting the number of the synchronizer device unit (138, 140, 142), which is the current master when the sleep occurs, and the currently selected reference clock number to the synchronizer unit (136); Receiving a number of a network synchronizer device unit (138, 140, 142) that is a current master when a sleep occurs and a currently selected reference clock number and transmitting it to the network maintenance processor (132); Generating, by the network maintenance processor 132, slip generation information in the network maintenance processor 132 by reference time information for each network device; An operator requesting and receiving slip occurrence rate information from the input / output unit 160 and the central control subsystem 150 to the network maintenance processor 132; The maintenance matching unit 152 is in the form of slip occurrence number / accumulated date or slip occurrence number / 1 day for each of the corresponding synchronizer device units 138, 140, and 142, and the reference clock, in which the slip has occurred in the input / output unit 160. Method for measuring the slip generation rate of the network synchronizer, characterized in that it comprises the step of displaying the generation rate to the input and output unit (160).