JPS5820052A - Abnormal traffic ontrolling system - Google Patents

Abstract

PURPOSE:To quickly retire from a congestion state of processors for an electronic switchboard of multiprocessor system, by controlling a control load to the processor in a congestion state for each processor under control. CONSTITUTION:The function of an electronic switchboard of multiprocessor system is shared by plural processors LPR, CPR and MPR. A means HT is provided to the switchboard to monitor an abnormal congestion state for the above- mentioned processors and then transmits the control command of the control load to these processors which are in the ongestion state via an exclusive command line L2 reaching each processor. As a result, each processor under control command can control the control load to the processor in the congestion state. In such way, the processor can quickly be retired from the congestion state.

Description

DETAILED DESCRIPTION OF THE INVENTION Fact 91i relates to an abnormal traffic regulation system, an abnormal traffic regulation system in a multi-pro seven-tuna type electronic switching system including TM-TM, in which functions are shared among 41KII processors.

In conventional electronic exchanges, tn'C has various functions such as supervisory control of accommodating terminals, O-call information management control for exchange IIO, and supervisory operation control of the entire electronic exchange. are all single 〇1
In the any-processor type electronic exchange equipped in the zero processor, the detection of congestion signals caused by abnormal loads and the regulation of the load are all carried out within the single processor. 46!1 was possible.

On the other hand, based on advances in semiconductor technology such as microprocessors, there is a multiprocessor T7J system in which the control function of an electronic exchange is shared by a TAAO processor. If a congestion state occurs in a certain processor in the electronic switching system, if the processor in the congestion state itself regulates the abnormal load, as in the uniprocessor system, the processor In order to make other processors that add a load as well as other processors to perform an invalid layer, multiple processors can use communication channels provided in a state of communication between other processors. If each processor provides monitoring by
It is necessary to bias the function by job, and furthermore, the above 1wx
*If a disorder occurs in the inter-tuna hypersensitivity path, the convergence-11 visual function will be paralyzed (), making it impossible to quickly and accurately separate from the convergence state.

It is an object of the present invention to eliminate the drawbacks of the conventional abnormal traffic control system using the above-mentioned power supply, to eliminate the need to cause the processor of the electronic exchange to perform invalid processing, and to eliminate the need for the inter-processor communication path provided in the electronic exchange. There are two ways to realize a means to quickly and accurately separate from a state of convergence even when a failure occurs.

This purpose company, in a multiprocessor type electronic switching system in which functions are shared among multiple oyvx Senna K
N! This is achieved by providing means for transmitting the command through a dedicated command line, and each processor that receives the armpit control command restricts the control load on the processor in the congestion state. An example will be explained with reference to the drawings. FIG. W is a diagram showing an abnormal traffic regulation method according to an embodiment of the present invention. The multiprocessor type electronic switching system shown in the figure is a type 3 type 1 setter, namely, a terminal monitoring control processor tLP.
R, call information management center control system control system 7 Tuna CP 几 and system monitoring operation control system tMPR & 0 terminal monitoring and control system LPR is line circuit L Cs ) 5 y
Terminals S such as subscriber lines and trunk lines accommodated in the circuit TRK
The call information management layer control processor CPR performs UB call detection, status monitoring, and call reception control.
R or (I!IO call information control layer processor CPR
The corresponding network N based on the call information transmitted from
Setting the KPM on W, the system monitoring and operation control Grossena MPR is all zero. Communication between the tLPR and the call information tube 1 control booth CPR is carried out by the line circuit LC and the trunk circuit TR.
A signal communication path (not shown) included in the highway HW that connects K and the network NW is carried out, and a call information management control processor CPRIIXM), a call information management control processor CPR, and a system monitoring and communication control processor MP are carried out.
This is done through the over-confucian control and over-confidence path CBK between R and R. In addition, each of the front 1le-car monitoring control processor LPR, call information management control processor CPB, and system monitoring and operation control processor MPR is equipped with a congestion detection section HT.◎The congestion detection section HT is a uniprocessor type electronic switching system. Using a known method similar to that described above, the unloaded time of each processor O is measured to calculate the usage rate, and when the usage rate exceeds a predetermined standard value, the processor is considered to be in a busy state. Further Call
The 1m multi-processor type electronic exchange is provided with a ring status monitoring device 8 independent of the various processors LPR, CPR and group 1, and the various processors LPR%CPR
and MPRO, the highway MW and the communication path CB and independent notification l5L1. and command line L!
) Connected/convergence status monitoring device 8 is notified -L
Each processor LPR, CPR and MPRO
Any of the 10 sets that are constantly monitoring the congestion status (for example, one call information management layer control processor CPR, v)
When the 0111+1 detection unit HT detects the occurrence of the congestion condition, it transmits the congestion condition information to the congestion condition am scissors 8 via the notification line Ll. From the unillustrated Grossenna interface with 8Fi built-in,
Call information management control processor CPRK in a congestion state Terminal monitoring control 1m Ryu Tuna LP that adds control load such as call information
'R, extracts other call information management control processors CPR, etc., and sends a control load regulation command to the call information pipe 1 control processor CPH, which is in a congestion state, to the command line L2 leading to each extracted processor. After receiving the regulation command, each controller stops applying a control load to the call information management control processor CPR which is in a congested state. For example, the terminal monitoring control processor LPR is the terminal 8U under management.
B to O call origination is not detected, therefore, it is not possible to transmit the call information regarding the call origination to the call information management layer control professional 7Tuna CPBK which is in the congestion state. The control load of the call information management control process and TCPH decreases as the processing progresses, and the congested state quickly breaks away.

More than that! - As is clear from this example, the four sets of scissors multipliers are connected to the electronic switching system Kt, so any group b
The processor LPR, JO'P6 is included in the electronic exchange and the processor is included in the electronic exchange, since the control device 8 gives control commands to the associated processors valid for up to 4 controls. Invalid processing mFi is stopped and the flow state monitoring device S and each processor tLPR, CPR, and MPR and OMK exchange state information and regulation commands are transmitted via dedicated notification @L1 and command line L2. Therefore, the electronic exchange used for exchange processing, i HW, has a compensation path CBK failure and 4,
Regulations can be implemented without any problems. Note that IIl is just an example, and for example, the 1w-ky that occurs in the convergence state O is not determined by the call information management control processor CPRKII. , the effect of the present invention does not change even in the case of any other set of computers. The present invention is not limited to 4h, and many other OgR types may be considered, but the effect of the present invention remains the same in any case.

As described above, according to the present invention! If a congestion condition occurs in any processor included in the electronic switching system, invalid #! It becomes possible to regulate the control load without causing disturbances and without being affected by disturbances occurring in the communication path of the electronic exchange, and it is possible to quickly remove the processor from a congested state.

[Brief explanation of the drawing]

The drawing is a diagram showing an abnormal traffic regulation system according to the most advanced embodiment of the present invention. In the drawing, SUB is a terminal, LC is a line circuit, and TRK
Fl;t Tonk circuit, LPR is terminal monitoring system @14 processors, HW is high power, NW is network, CP
R is call information management control path, CBt1 communication path, M
PR is the system monitoring operation control processor, I (T is the congestion detection unit, 8 is the congestion status monitoring device, LIF1 notification arrival, L2
indicates a command line.

Claims (1)

[Claims] A multi-processor electronic exchange system KsIP has functions divided into multiple O processors 1#'', and each of the above-mentioned processors
A means is provided for monitoring an abnormal congestion state and transmitting a control load regulation command for the nine-pull Kasumi Nanatsusa via a dedicated O command to each of the processors, and transmitting the regulation command. Each received processor is in the previous 1ellllll state and 1
Abnormal traffic regulation method whose purpose is to regulate the control load on the mourning process