KR20020049788A - Surveillant And Control Method For ATM-PON OLT System - Google Patents

Abstract

PURPOSE: An apparatus and method for processing supervisory control in an ATM-PON(Asynchronous Transfer Mode-Passive Optical Network) OLT system is provided to process a supervisory control function in real time and be inexpensive in an embodying cost. CONSTITUTION: A network-side control unit(400) controls a network-side line card unit for connecting to a network side and performing an ATM process. A subscriber-side control unit(300) controls a subscriber-side line card unit for connecting to an ONU(Optical Network Unit) and performing the ATM process. An operation management unit connects to the network-side control unit(400) and the subscriber-side control unit(300) and manages an ATM-PON OLT system. The network-side control unit(400) and the subscriber-side control unit(300) includes a hardware processing unit(910), a fault processing unit(920), a performance processing unit(930), and a shape processing unit(940) for performing a supervisory control function for controlling the network-side line card unit and the subscriber-side line card unit.

Description

Surveillant And Control Method For ATM-PON OLT System}

The present invention relates to a real-time hierarchical monitoring control processing apparatus and method in an ATM-PON OLT system.

The ATM-PON OLT system is located between the ATM service node and the ONU. ATM service subscribers connected to ONU can receive various ATM services through OLT system. In addition to the existing POTS service, VOD, high-speed Internet, and digital CATV can be provided by ATM service subscribers through ATM-PON OLT system. Traffic from the subscriber is multiplexed in the ATM access system and forwarded to the ATM switch, passing through the high-speed ATM switch to the service node providing the service.

In the conventional ATM access system, one control processor controls all line cards in the system and one management processor performs all management tasks in the system. In the conventional system, since the supervisory control function to be performed is relatively small, it can be processed by one 32-bit CISC processor (for example, the processor such as MC68030), and the system information that the management processor needs to manage is relatively small. This allowed one 32-bit CISC processor (such as the MC68040) to process.

Korean Patent No. 10-0211023, filed by the applicant of the present application on November 20, 1996 (Application No.:10-1996-0055822), issued April 29, 1999, discloses an ATM service node device supporting an ultra-high speed application service; The operating method is described. In the patent, the B-TA function, which is a component of the B-ISDN, is partially accommodated in the B-NT. System structure that can connect B-ISDN service without additional external device is suggested.

However, as research on the access network progresses, the ATM access system is expanded from 16x16 155M system to 64x64 155M or 16x16 622M system as the integrated introduction of new ATM service (VOD, Digital CATV, high speed internet simultaneously) is required. It is becoming. As the system expands, the hierarchical management function that needs to be processed in real time within the system is rapidly increased. In addition, the management information to be managed has increased rapidly.

Therefore, the method used in the existing system structure is not only able to guarantee the real-time processing of the supervisory control function, but it is also expected to cost a lot of money to implement and maintain the existing supervisory control function. In addition, the introduction of ATM services (VOD, Digital CATV, high-speed Internet at the same time) is being introduced, but a competitive and flexible system is needed to provide services by replacing only the line card module according to service preferences or subscriber changes. . In addition, in implementing low cost optical subscriber equipment, the PON scheme can serve a large number of subscribers.

However, in the ATN-PON access network, the connection and management functions of the PON method between the OLT and the ONU are complicated and newly studied and studied.

The present invention has been made to solve the above problems, and provides a real-time hierarchical supervisory control and processing apparatus and method for processing a supervisory control function in an ATM-PON OLT system in real time, and low in implementation cost, line by service The purpose is to provide a highly scalable supervisory control by recognizing the card.

1 is a block diagram of an ATM-PON OLT system;

2 is an exemplary view illustrating a monitoring control processing apparatus of an ATM-PON OLT system according to the present invention;

3 is a flowchart for explaining a processing procedure of an initialization processing unit in the monitoring control processing apparatus according to the present invention;

4 is a flowchart illustrating a processing procedure of a hardware API processing unit of the monitoring control processing apparatus according to the present invention;

5 is a flowchart illustrating a processing procedure of an interrupt processing unit in the monitoring control processing apparatus according to the present invention;

6 is a flowchart illustrating a processing procedure of a failure report processing unit in the monitoring control processing apparatus according to the present invention;

7 is a flowchart illustrating a processing procedure of a failure management processing unit in the monitoring control processing apparatus according to the present invention;

8 is a flowchart illustrating a processing procedure of a loopback processing unit in the monitoring control processing apparatus according to the present invention;

9 is a flowchart illustrating a processing procedure of a PM / CC activation processing unit in the monitoring control processing apparatus according to the present invention;

10 is a flowchart for describing a processing procedure of a performance report processing unit in the monitoring control processing apparatus according to the present invention;

11 is a flowchart for describing a processing procedure of a performance management processing unit in the monitoring control processing apparatus according to the present invention;

12 is a flowchart for describing a processing procedure of an initialization management processing unit in the monitoring control processing apparatus according to the present invention;

13 is a flowchart for describing a processing procedure of a shape management processing unit in the monitoring control processing apparatus according to the present invention;

14 is a flowchart illustrating a processing procedure of a connection management processing unit of the monitoring control processing apparatus according to the present invention;

15 is a flowchart for describing a processing procedure of the switching management processing unit in the monitoring control processing device according to the present invention.

* Explanation of symbols for the main parts of the drawings

11: initialization processing unit 12: hardware API processing unit

13: Interrupt Processing Unit 14: Error Reporting Processing Unit

15: failure management processing unit 16: loopback processing unit

17: PM / CC activation processing unit 18: performance report processing unit

19: performance management processing unit 20: initialization management processing unit

21: shape management processing unit 22: connection management processing unit

23: transfer management processing unit 100: network management agent

200: system and operation management unit 300: subscriber side control unit

400: network side controller 500: subscriber line card unit

600: switch unit 700: network side line card unit

According to an embodiment of the present invention, the network side controller connected to the network side to control the network side line card unit performing ATM processing, and the subscriber side controller and IPC connected to the ONU to control the subscriber side line card unit performing ATM processing. In the ATM-PON OLT system monitoring and control processing device comprising an operation management unit for managing the ATM-PON OLT system connected to the network side control unit and subscriber side via a processing unit, wherein the network side control unit and subscriber side control unit, the network side line Provided is an ATM-PON OLT system monitoring control processing apparatus comprising a plurality of function modules each performing a monitoring control function for controlling a card portion and / or a subscriber side line card portion.

Hereinafter, with reference to the accompanying drawings will be described in detail an embodiment according to the present invention by way of example only.

2 is a diagram illustrating a specific embodiment of a real-time layer management processing apparatus according to the present invention. In the real-time hierarchical monitoring control processing apparatus, the subscriber side controller 300 or the network side controller 400 may include a hardware processor 910, a failure processor 920, a performance processor 930, and a shape, as illustrated in FIG. 2. It is largely divided into the processing unit 940.

The hardware processor 910 may include an initialization processor 11 performing an initialization function on a line card; A hardware API processing unit 12 for performing a hardware API function on the line card; And an interrupt processing unit 13 for processing a function of distributing an interrupt to another processing unit in the supervisory control based on the information received from the ISR.

The failure processing unit 920 may include a failure report processing unit 14 performing a failure activation / deactivation function; A failure management processing unit 15 for performing a failure log management function, a failure level management function, a failure test part function, and a visible audible management alarm management function; A loopback processor 16 performing a loopback function among the failure test functions; And a PM / CC activation processing unit 17 that performs a PM / CC activation / deactivation function among the failure test functions.

The performance processor 930 may include a performance report processor 18 that performs a physical layer and ATM layer periodic performance report function; And a performance management processor 19 for performing physical layer current performance inquiry, physical layer performance data initialization, ATM layer current performance inquiry, ATM layer performance data initialization, performance cumulative threshold setting, and inquiry function.

The shape processor 940 may include an initialization management processor 20 that performs an initialization related function; A shape management processor 21 which performs a shape management related function; A connection management processor 22 which performs a connection management related function; It is composed of a transfer processing unit 23, an IPC processing unit 950, and an INC processing unit 960 that performs a transfer management related function.

3 is an embodiment of the initialization processing unit 11 in the real-time monitoring and control processing apparatus. When the initialization processing unit 11 receives the initialization message 1102 from the shape processing unit 940, calls the initialization function API function 1103, transfers the initialization response message 1104 to the shape processing unit 940, and performs initialization processing. End 1105.

4 is an embodiment of a hardware API processing unit 12 in a real-time monitoring control processing apparatus. The hardware API processing unit 12 performs hardware API functions 1202 when each processing unit requires hardware API processing, and terminates 1203 hardware API processing.

5 is an embodiment of the interrupt processor 13 in the real-time monitoring and control processing apparatus. The interrupt processor 13 performs an interrupt API function 1303 when the interrupt is generated from the subscriber line / network line card unit 1302 and determines the interrupt type (1304). ) Generates and transfers the error processing unit 920 and the shape processing unit 940 and generates an OAM interrupt report message 1306 in the case of an OAM interrupt, and delivers it to the error processing unit 920, and in the case of a shape interrupt, a shape interrupt report message. 1307 is generated and delivered to the shape processor 940, and in the case of 1 second interrupt, a performance interrupt report message 1308 is generated and transmitted to the performance processor 930, and in the case of an AAL5 interrupt, an AAL5 interrupt report message 1309. Is generated and transferred to the INC processing unit, and the interrupt process is terminated (1310).

6 is an embodiment of the failure report processor 14 in the real-time monitoring and control processing device. When the failure report processor 14 receives the failure interrupt report message 1402 from the hardware processor, the failure report 1402 determines a failure type 1403, in the case of a failure, performs a failure activation procedure (1404), and the failure report message (1405). ) Is generated and transmitted to the operation management unit 200 through the IPC processing unit 24, and the failure reporting process is terminated (1408). If the failure type is failure release, the deactivation procedure is performed in operation 1406, a failure report message 1407 is generated and transmitted to the operation management unit 200 through the IPC processing unit, and the failure reporting process is terminated (1408). .

7 is an embodiment of the failure management processor 15 in the real-time monitoring and control processing device. When the failure management processor 15 receives the failure management message 1502 from the operation manager 200 through the IPC processing unit, the failure management processor 1503 determines the management message 1503 and performs a failure log processing procedure in the case of the failure log message (1504). A failure log report message 1505 is generated and transmitted to the operation management unit 200 through the IPC processing unit, and the failure management unit is terminated (1512).

If the management message is a failure grade message, a failure grade processing procedure is performed (1506), a failure grade report message is generated (1507), transferred to the operation management unit 200 through the IPC processing unit, and the failure management process is terminated 1512. If the management message is a failure test message, a failure test processing procedure is performed (1508), a failure test report message 1509 is generated and transmitted to the operation management unit 200 through the IPC processing unit, and the failure management process is terminated 1512. Finally, if the management message is an audible and audible message, a visible audible processing procedure is performed (1510), a visible and audible report message (1511) is generated and delivered to the operation management unit 200 through the IPC processing unit, and the failure management processing is terminated (1512) )do.

8 is an embodiment of the loopback processor 16 in the real-time monitoring and control processing apparatus. When the loopback processing unit 16 receives the loopback message 1602 from the operation management unit 200 through the IPC processing unit, performs the loopback protocol 1603 and generates a loopback response message 1604 to operate the operation management unit 200 through the IPC processing unit. ) And the loopback process ends (1605).

9 is an embodiment of the PM / CC activation processor 17 in the real-time monitoring and control apparatus. When the PM / CC activation processing unit 17 receives the PM / CC activation message 1702 from the operation management unit 200 through the IPC processing unit, performs the PM / CC activation protocol (1703) and the PM / CC activation response message (1704). ) Is generated and transferred to the operation management unit 200 through the IPC processing unit, and the PM / CC activation process is terminated (1705).

10 is an embodiment of the performance report processing unit 18 in the real-time monitoring and control processing device. When the performance report processor 18 receives the performance interrupt report message 1802 from the hardware processor 910, the performance report processor 18 reports the performance report time 1803, and in the case of YES, collects performance data (1804) and reports the performance report message (1805). It generates and delivers to the operation management unit 200 through the IPC processing unit and ends the performance report processing (1807). If the performance report time is NO, performance data is collected (1806) and the performance reporting process ends (1807).

11 is an embodiment of the performance management processing unit 19 in the real-time monitoring and control processing device. When the performance management processor 19 receives the performance management message 1902 from the management manager 200 through the IPC processing unit (1902), the performance management processor 19 determines a management message, and performs a current performance collection procedure in the case of the current performance inquiry message (1904). Next, a current performance report message 1905 is generated and transmitted to the operation management unit 200 through the IPC processing unit, and the performance management process ends (1910).

If the management message is a performance threshold message, the performance threshold procedure is performed (1906) and a performance threshold report message 1907 is generated and transmitted to the operation management unit 200 through the IPC processing unit. When the management message is the performance data initialization message, the performance data initialization processing procedure is performed (1908) and a performance data initialization report message 1909 is generated and transmitted to the operation management unit 200 through the IPC processing unit.

12 is an embodiment of the initialization management processor 20 in the real-time monitoring and control processing device. When the initialization management processor receives the initialization management message 2002 from the operation management unit 200 through the IPC processing unit (2003), the initialization management message determines an initialization management message (2003). 2005) is generated and transferred to the operation management unit 200 through the IPC processing unit and ends the initialization management process (2016).

If the initialization management message is an initial state setting message, an initial state setting procedure is performed (2006), an initial state setting report message (2007) is generated and transmitted to the operation management unit 200 through the IPC processing unit, and the initialization management process ends ( 2016). If the initialization management message is an initial status inquiry message, an initial status inquiry procedure is performed (2008), an initial status inquiry report message (2009) is generated and transmitted to the operation management unit 200 through the IPC processing unit, and the initialization management process ends ( 2016). If the initialization management message is a synchronous clock source message, the synchronous clock source procedure is performed (2010), a synchronous clock source report message (2011) is generated and transmitted to the operation management unit 200 through the IPC processing unit, and the initialization management process ends (2016). )do. If the initialization management message is the current time message, the current time procedure is performed (2012), the current time report message 2013 is generated and transmitted to the operation management unit 200 through the IPC processing unit, and the initialization management process is terminated (2016). . When the initialization management message is the discharge condition message, the discharge condition procedure is performed (2014), the discharge condition report message 2015 is generated, transferred to the operation management unit 200 through the IPC processing unit, and the initialization management process is terminated (2016). .

13 is an embodiment of the shape management processing unit 21 in the real-time monitoring and control processing device. When the configuration management processor receives the configuration management message 2102 from the operation management unit 200 through the IPC processing unit (2102), and determines the configuration management message (2103), and performs the current configuration inquiry procedure (2104) in the case of the current configuration inquiry message. The current shape inquiry report message 2105 is generated and transmitted to the operation management unit 200 through the IPC processing unit, and the shape management process ends 2111.

If the configuration management message is a management state change message, the management state change procedure is performed (2106), and a management state change report message 2107 is generated and transmitted to the operation management unit 200 through the IPC processing unit, and the configuration management process ends ( 2111). If the configuration management message is a board mounting message, an initialization procedure is performed (2108), a board mounting report message 2109 is generated and transmitted to the operation management unit 200 through the IPC processing unit, and the configuration management process is terminated (2111). If the configuration management message is a board detachment message, a board detachment report message 2110 is generated and transmitted to the operation management unit 200 through the IPC processing unit, and the configuration management process ends 2111.

14 is an embodiment of the connection management processor 22 in the real-time monitoring and control processing device. When the connection management processor receives the connection management message 2202 from the operation manager 200 through the IPC processing unit (2203), and determines the connection management message (2203), and performs a connection information inquiry procedure in the case of the connection information inquiry message (2204). Next, a connection information report message 2205 is generated and transmitted to the operation management unit 200 through the IPC processing unit, and the connection management processing ends (2212).

If the connection management message is a connection establishment / release message, the connection establishment / release procedure is performed (2206), and a connection establishment / release report message (2207) is generated and transmitted to the operation management unit 200 through the IPC processing unit, and connection management processing. End (2212). If the connection management message is a party setup / release message, the party setup / release procedure is performed (2208) and a party setup / release report message (2209) is generated and delivered to the operation management unit 200 through the IPC processing unit, and the connection management processing is performed. End (2212). If the connection management message is a connection block / blocking message, it performs a connection block / blocking procedure (2210), generates a connection block / blocking report message (2211) and delivers it to the operation management unit 200 through the IPC processing unit. The connection management process ends (2212).

15 is an embodiment of the switching management processing unit 23 in the real-time monitoring and control processing device. When the transfer management processor receives the transfer management message 2302 from the operation management unit 200 or the hardware processing unit 910, the transfer management message is determined (2303), and when the transfer state inquiry message is a transfer state inquiry message (2304). In addition, the transfer status report message 2305 is generated and transmitted to the operation management unit 200 through the IPC processing unit, and the transfer management process ends (2310).

When the transfer management message is the fault interrupt report message, the transfer procedure is performed (2306), the transfer report message 2307 is generated and transmitted to the operation management unit 200 through the IPC processing unit, and the transfer management process is terminated (2310). When the connection management message is a board detachment message, the transfer procedure is performed 2308, the transfer report message 2309 is generated and transferred to the operation management unit 200 through the IPC processing unit, and the transfer management process is terminated 2310.

According to the monitoring control apparatus and method according to the present invention, even if the ATM-PON OLT system is extended through the implementation of a hierarchical control function and the division of a function-oriented processing unit, there is an effect of providing a monitoring control function in real time.

In addition, by allowing the supervisory control function to control the module of the line card, there is an easy effect of reducing the cost of the control processor according to the system expansion.

In addition, since it is modularized around the core functions in the implementation of the supervisory control function, it is easy to reduce the implementation cost and maintenance cost.

The description so far is directed to the preferred embodiments for the understanding of the invention, and the invention is not limited thereto, and is intended to those skilled in the art without departing from the scope and spirit of the appended claims. It is apparent that various modifications and variations are possible.

Claims (2)

The network side control unit and the subscriber side through a network side control unit connected to the network side to control the network side line card unit performing ATM processing, and a subscriber side control unit and an IPC processing unit connected to ONU to control the subscriber side line card unit performing ATM processing. In the ATM-PON OLT system monitoring and control device comprising an operation management unit for managing the ATM-PON OLT system connected to the The network side control unit and the subscriber side control unit, ATM-PON OLT system monitoring characterized in that it comprises a plurality of functional modules for performing the monitoring control function for controlling the network line line unit and / or subscriber line line card unit, respectively. Control processing unit. The method of claim 1, The function module is: An initialization processing unit that calls an initialization function API function when the initialization message is received from the shape processing unit and delivers an initialization response message to the shape processing unit, and a hardware API processing unit that performs hardware API functions when each processing unit requires hardware API processing And if an interrupt occurs from the subscriber side / network side line card unit, performs an interrupt API function, and if the interrupt type is a fault interrupt, transfers it to the fault processing unit and the shape processing unit; A hardware processor configured to transmit to the shape processor, an interrupt processor for a one second interrupt, and an interrupt processor for delivering the result to the INC processor for an AAL5 interrupt; A failure report processor for determining whether a failure interrupt report message received from a hardware processor is a failure or a failure release and performing the respective processing procedures, and transferring the result to the operation manager through an IPC processor; and an IPC processor from the operation manager. After determining the type of the failure management message received through the corresponding processing procedure and performing the respective processing procedure and delivers the results to the operation management unit through the IPC processing unit, and receives a loopback message from the operation management unit through the IPC processing unit After performing the loopback protocol and receiving the PM / CC activation message from the loopback processing unit and the operation management unit through the IPC processing unit through the IPC processing unit through the IPC processing unit, the PM / CC activation protocol is performed and then the IPC processing unit. Deliver the results to the Operations Management Department. A failure processing unit configured of a PM / CC activation processing unit; If a performance interrupt report message is received from the hardware processing unit, if the performance report time is 'yes', the performance data is collected and the result is transmitted to the operation management unit through the IPC processing unit. If the performance reporting time is 'no', the performance data is collected. After the performance report processing to terminate the performance report processing and the performance management message received from the operation management unit through the IPC processing unit to perform a performance collection procedure corresponding to the result of the operation management unit 200 through the IPC processing unit A performance processor configured to deliver a performance management processor; And An initialization management processor that determines the initialization management message received from the operation management unit through the IPC processing unit, performs a corresponding initialization procedure, and then transfers the result to the operation management unit through the IPC processing unit, and receives the IPC processing unit from the operation management unit; Determine a configuration management message and perform a corresponding procedure, and then determine a configuration management processor that transmits the result to the operation management unit through the IPC processing unit, and a connection management message received from the operation management unit through the IPC processing unit. After performing each procedure to determine the connection management processing unit and the transfer management message received from the operation management unit or the hardware processing unit and delivers the result to the operation management unit through the IPC processing unit and perform each corresponding procedure and then operate through the IPC processing unit. Transfer management to deliver the results to the management ATM-PON OLT system monitoring and control processing apparatus comprising a shape processing unit composed of a processing unit.