KR100329366B1 - Method of Managing Switch Channels in the Communication Management System - Google Patents

Abstract

The present invention relates to a method for managing a switch channel in a communication processing system, and more particularly to a method for managing a switch channel in a communication processing system to monitor the state of each switch channel to perform recovery and reporting in the event of a failure. .

According to the method of the present invention, each time a switching request occurs, the main switching unit checks a transmitting channel board corresponding to the switching request and checks the channel state of the identified transmitting channel board; Determining, by the channel state monitoring circuit unit, whether the channel state is normal by receiving information on the channel state of the checked channel board and comparing it with information about a previously stored channel state; And resetting the channel in the main switching unit to restore the normal state when the state of the channel is abnormal.

Description

{Method of Managing Switch Channels in the Communication Management System}

The present invention relates to a switch channel management method in a communication processing system, and more particularly, to a switch channel management method in a communication processing system for monitoring a state of each switch channel and performing recovery and reporting in the event of a failure.

As shown in FIG. 1, a general communication processing system includes a switching board 10, which is a board that performs a large switching function, and a plurality of channel boards 20-which are boards that perform matching with each node. 1 ~ 20-N).

Here, the switching board 10 includes a switching sensing unit 11 that accepts a switching request, and a main switching unit 12 that performs switching by checking a signal applied from the switching sensing unit 11. have.

Each of the channel boards 20-1 to 20-N receives the data RxD received from each node and stores the reception buffers 21-1 to 21-N and the transmission data TxD, respectively. Transmit buffers (24-1 to 24-N) that are stored and output to each node, and data (RxD) received through corresponding receive buffers (21-1 to 21-N) are detected or the corresponding transmit buffer A data detection and buffer control unit 22-1 to 22-N which detects the presence of data (TxD) to be transmitted through (24-1 to 24-N) and performs transmission / reception buffer control, and a corresponding data detection and buffer control unit And transmit / receive buffer units 23-1 to 23-N for storing transmit / receive data RxD and TxD, respectively, under control of 22-1 to 22-N.

The operation of the communication processing system configured as described above will be described as follows. For example, the first channel board 20-1 is called a receiving side channel board and the Nth channel board 20 -N is called a transmitting side channel board. Let's take a look.

First, when data is sent from the first node to the first channel board 20-1, the reception buffer 21-1 provided in the first channel board 20-1 receives data from the first node. (RxD) is applied and stored for a while.

Accordingly, the data detection and buffer control unit 22-1 provided in the first channel board 20-1 detects that the reception data RxD is stored in the reception buffer 21-1 and detects the corresponding detection signal. It informs to the switching board 10 side.

Then, the switching detection unit 11 provided in the switching board 10 periodically monitors whether the reception data RxD is received by the first channel board 20-1, and then performs the first detection. When it is checked whether there is a detection signal received from the channel board 20-1, the main switching unit 12 provided in the switching board 10 is notified to request switching.

Accordingly, the main switching unit 12 receives a switching request from the switching sensing unit 11 to switch the received data RxD of the first channel board 20-1 to the first side of the receiving side. The data sensing and buffer control unit 22-1 provided in the channel board 20-1 requests to perform the transmission and reception buffer control operation.

At the same time, the main switching unit 12 reads the data stored in the reception buffer 21-1 and checks the N-th channel board 20-N of the destination to be switched, and checks the destination of the checked destination. The data sensing and buffer control unit 22-N provided in the N-channel board 20-N is requested to perform the transmission buffer control operation.

Therefore, the data sensing and buffer control unit 22-1 provided in the first channel board 20-1 on the receiving side and the data sensing and buffer control unit provided in the N-th channel board 20-N of the destination ( The 22-N controls the transmit / receive buffer units 23-1 and 23-N, respectively, so that the received data RxD stored in the receive buffer 21-1 is received by the first channel board 20-1 on the receiving side. It is applied to the transmit / receive buffer unit 23-N provided in the N-th channel board 20-N of the destination via the main switching unit 12 by the transmit / receive buffer unit 23-1 provided therein, Through the transmission / reception buffer unit 23-N provided in the N-th channel board 20-N of the corresponding destination, the transmission data TxD is stored in the transmission buffer 24-N of the destination, and then the Nth node of the destination is stored. Is sent to.

However, the conventional technique as described above does not know at all about the state of the receiving buffer of the data to be switched, so that the receiving data that is required to be switched by the main switching unit continuously switches to the transmitting buffer side, so that the capacity of the transmitting buffer If this data is full and no more data can be received or the send buffer is abnormal, data loss or error may occur, causing system performance to degrade or system down. There was a problem causing the phenomenon.

In order to solve the above problems, the present invention monitors the state of each switch channel in the board responsible for switching the large capacity communication processing system to perform recovery and reporting when a failure occurs, thereby switching to abnormal channels It is an object of the present invention to prevent data loss and error caused by the present invention and to be suitable for the structure of a data switching system.

1 is a block diagram schematically showing a conventional communication processing system.

2 is a block diagram schematically illustrating a communication processing system according to an embodiment of the present invention.

3 is a flowchart illustrating a switch channel management method in a communication processing system according to an exemplary embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

30: Switching Board

40-1 ~ 40-N: Channel Board

31: Switching Sensor

32: main switch

33: Channel State Sensing Circuit

41-1 ~ 41-N: Receive Buffer

42-1 ~ 42-N: Data Sensor and Buffer Controller

43-1 to 43-N: Transmit and Receive Buffering Unit

44-1 ~ 44-N: Transmit Buffer

In the communication processing system according to an embodiment of the present invention for achieving the above object, the switch channel management method checks the corresponding channel board corresponding to the switching request by the main switching unit whenever the switching request occurs. Checking a channel state of the transmitted channel board; Determining, by the channel state monitoring circuit unit, whether the channel state is normal by receiving information on the channel state of the checked channel board and comparing it with information about a previously stored channel state; And resetting the channel in the main switching unit to restore the normal state when the state of the channel is abnormal.

The channel state checking process may include: periodically detecting whether there is data received at a receiving channel board by a switching detector and notifying the data detection and buffer controller of a corresponding detection signal; Requesting switching to the main switching unit by receiving a sensing signal from the data sensing and buffer control unit; Confirming a transmitting channel board corresponding to the switching request by receiving the switching request from the main switching unit; Confirming, by the main switching unit, a channel state of the identified channel board of the transmitting channel to the channel state monitoring circuit unit; And receiving and storing the channel state information of the channel board of the transmitting side in the channel state monitoring circuit unit.

Alternatively, the switch channel management method in the communication processing system according to an embodiment of the present invention for achieving the above object is the main switching unit in the case that the channel state of the identified channel side of the transmission channel is maintained in an abnormal state Controlling not to perform a switching operation on a corresponding channel at the same time and notifying all nodes at the same time; The main switching unit further checks the state of another channel and switches to a bypass route through the identified other channel.

The present invention detects when a switching channel state of the mass communication processing system is abnormal and does not recover normally or switches to the corresponding channel, that is, when the switching occurs, the state of each channel is checked and if an abnormal channel occurs. It prevents it from recovering normally or switching to that abnormal channel. Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 2, a communication processing system according to an exemplary embodiment of the present invention includes a switching board 30 and a plurality of channel boards 40-1 to 40 -N.

Here, the switching board 30 includes a switching sensing unit 31 that accepts a switching request, a main switching unit 32 that performs switching by checking a signal applied from the switching sensing unit 31, and a channel state. And a sensing circuit section 33. In addition, the channel state sensing circuit unit 33 performs a role of switching channel state management. Before the switching board 30 performs a switching operation, the channel state sensing circuit unit 33 manages a state of a destination to determine whether the channel of the corresponding destination is an abnormal channel. Check and switch to the abnormal channel when notified of the abnormal channel and notify the operator.

Each of the channel boards 40-1 to 40 -N includes a reception buffer 41-1 to 41 -N, a data sensing and buffer control unit 42-1 to 42 -N, and a transmission / reception buffer unit 43. -1 to 43-N and transmission buffers 44-1 to 44-N, respectively, which are the same as in the conventional configuration, and description thereof is omitted.

The switch channel management method in the communication processing system according to the embodiment of the present invention configured as described above will now be described with reference to the flowchart of FIG. 3.

For example, the first channel board 40-1 is referred to as a receiving side channel board and the Nth channel board 40-N is referred to as a transmitting side channel board.

First, when data is sent from the first node to the first channel board 40-1 on the receiving side, the first node is received by the reception buffer 41-1 provided in the first channel board 40-1. The received data RxD received from the data is stored. Accordingly, in the data sensing and buffer control unit 42-1 provided in the first channel board 40-1, the received data RxD is stored in the corresponding receive buffer ( 41-1) senses that the data has been stored and the corresponding detection signal is applied to the switching board 30 to indicate that there is data to be switched.

Then, the switching detection unit 31 provided in the switching board 30 periodically monitors whether the received data RxD has been received by the first channel board 40-1 (step S1). In response to the detection signal received from the data sensing and buffer controller 42-1, the received data RxD is received from the first channel board 40-1 and is provided in the switching board 30. The main switching unit 32 is notified to request switching (step S2).

In addition, the main switching unit 32 receives the switching request from the switching detection unit 31 and checks the N-th channel board 40 -N of the transmitting side that should switch the received data RxD (step S). S3) Check the channel state as to whether switching to the N-th channel board 40-N is possible (step S4), and monitor the channel state provided in the switching board 30 for information on the identified channel state. It applies to the circuit part 33.

Accordingly, the channel state monitoring circuit unit 33 stores information on the channel state applied from the main switching unit 32, and the information on the stored channel state is the next switching operation in the main switching unit 32. As a result, information on the state of the Nth channel board 40 -N which is the same channel is maintained until it is received again (step S5).

As described above, after the information on the channel state is reported to the channel state monitoring circuit unit 33, the main switching unit 32 checks whether the checked channel state is abnormal (step S6), In the sixth step S6, if the checked channel state is not abnormal, the first channel board 40-1 is provided in the first channel board 40-1 to switch the received data RxD of the first channel board 40-1. Request to perform the transmit / receive buffer control operation to the data sensing and buffer control unit 42-1, and transmit buffer control operation to the data sensing and buffer control unit 42-N provided in the N-th channel board 40-N. Requires action

Accordingly, the data sensing and buffer control unit 42-1 of the receiving side and the data sensing and buffer control unit 42-N of the transmitting side control the transmission / reception buffer units 43-1 and 43-N, respectively. The reception data RxD stored in the reception buffer 41-1 is applied to the transmission / reception buffer section 43-N on the transmission side by the transmission / reception buffer section 43-1 on the reception side, and the transmission buffer ( 44-N) is stored as transmission data TxD and transmitted to the Nth node of the destination (step S7).

On the other hand, if the checked channel state is abnormal in the sixth step S6, the N-th channel board 40-N is reset to restore the normal state (step S8).

If it is determined that the abnormal state continues, the main switch unit 32 not to perform the switching operation, and since the corresponding channel is in an abnormal state to each node, it is sent to another channel to use a bypass route. Or send information to prevent data from being sent to the channel.

On the other hand, in the third step (S3), the main switching unit 32 receives the switching request from the switching detection unit 31 to check the channel board of the transmitting side to switch the received data (RxD) As a result, in the case of the same N-th channel board 40-N as described above, the channel status is again checked as to whether the switch is possible to the N-th channel board 40-N, and information about the identified channel state is obtained. The state monitoring circuit unit 33 is applied.

Accordingly, the channel state monitoring circuit unit 33 compares the information on the channel state applied from the main switching unit 32 with the information on the channel state previously stored, and transmits the N-th channel board 40-N on the transmitting side. Determine if the status of) is normal.

As described above, when the switching channel state of the mass communication processing system is abnormal according to the present invention, by detecting the abnormal state or not switching to the corresponding channel, the system prevents data loss or error caused by the abnormal channel in advance. It can improve the performance and reliability.

Claims (3)

Whenever the switching request occurs, checking, by the main switching unit, a channel state of the corresponding transmission side channel board by checking the transmission side channel board corresponding to the switching request; Determining, by the channel state monitoring circuit unit, whether the channel state is normal by receiving information on the channel state of the checked channel board and comparing it with information about a previously stored channel state; And resetting the channel in the main switching unit to restore the normal state when the state of the channel is abnormal. The method of claim 1, The channel state checking process may include: periodically detecting, by the switching detector, whether there is data received at a receiving channel board, and notifying the data detection and buffer controller of the corresponding detection signal; Requesting switching to the main switching unit by receiving a sensing signal from the data sensing and buffer control unit; Confirming a transmitting channel board corresponding to the switching request by receiving the switching request from the main switching unit; Confirming, by the main switching unit, a channel state of the identified channel board of the transmitting channel to the channel state monitoring circuit unit; And receiving and storing information on the channel state of the transmitting channel board in the channel state monitoring circuit unit. The method of claim 1, Notifying all nodes at the same time as controlling the switching operation to the corresponding channel from the main switching unit when the confirmed channel state of the transmitting channel board is abnormal; And checking the state of another channel in the main switching unit and switching to a bypass route through the identified other channel.