KR0152236B1 - Method for managing constitution of centralized access node system in remote place by using simple network management protocol - Google Patents

Abstract

The present invention provides a method for performing a configuration management function for a remote CANS system using a simple network management protocol (SNMP) in a network management system in addition to the configuration management function performed in the current centralized access node system (CANS). The purpose is.

In order to achieve the above object, the present invention, when the initialization (30) for the remote network management system to provide a remote configuration management function is performed, the callback routine to be performed per event (Event) input to the network management system ( 31) a second step of setting a callback routine and a status information request period for the port and board (32), and waiting for an occurrence of an event (33) until an event is input to the system. And, when a setting cycle elapsed event occurs automatically after the previously set port and board state information request period elapses, the configuration management unit 18 in the remote network management system 2 receives the event 34. Step 3, the fourth step (45 to 51) for reading the status of the board and port in the centralized access node system (CANS) 1 of the remote site, and the read status information is analyzed and output to the network management screen 26 The fifth step (57 to 67) It includes.

Description

Configuration Management Method of Centralized Access Node System at Remote Site Using Simple Network Management Protocol (SNMP)

1 is a network management diagram of a centralized access node system.

2 is a flowchart of a method for managing a node system configuration at a remote location using SNMP.

* Explanation of symbols for main parts of the drawings

1: Centralized Access Node System (CANS)

2: remote network management system

3: Physical Layer Sb Interface Board (PSIB: Physical Layer Sb Interface Board)

4: ATM Layer Board (ATMB)

5: Multiplex and Demultiplexing Board (MDPB: Multiplex / Demultiplex Processing Board)

6: Physical Layer Tb Interface Block (PTIB: Physical Layer Tb Interface Board)

7: ATM Layer Control Processing Board (ACPB)

8: System Control Processing Board (SCPB)

9: Physical Layer Control Block (PLCB)

10: ATM Layer Control Block (ALCB)

11: System Management Function Block (SMFB)

12: Man Machine Interface Block (MMIB)

13: Signaling Block (SIGB)

14: SNMP Agent Block (SAGB)

15: protocol processing unit 16: performance management unit

17: failure management unit 18: configuration management unit

19: port status management block 20: board status management block

21: PVC management block 22: configuration information output block

23: PVC information search block 24: PVC generation block

25: PVC delete block 26: Network management screen

The present invention relates to a method for performing a configuration management function of a centralized access node system (hereinafter referred to as CANS) located at a remote location using a simple network management protocol (hereinafter referred to as SNMP) in a network management system.

Until now, the CANS system to be used in the present invention performed only an independent configuration management function without a network management function. Therefore, in order for the configuration information and configuration items of the CANS system to understand the status, or to set up and release the permanent virtual channel (PVC), the operator had to be always around the CANS system.

In order to overcome this disadvantage, the network management function should enable the operator to grasp the configuration status and operation status of the configuration items from a remote location and to set or release a permanent virtual channel (hereinafter referred to as PVC).

Accordingly, an object of the present invention is to provide a method for performing a configuration management function for a remote CANS system using SNMP in a network management system in addition to the configuration management function performed in a current CANS system.

(Network management consists of an administrator program that controls commands remotely and an agent program that executes commands given remotely within the system. SNMP is one of the international standards of data transfer protocol required between manager programs and agent programs for network management functions. One thing.)

In order to achieve the above object, the present invention includes a protocol processing unit, a port state management block, a board state management block, and a PVC management block, and a configuration item which periodically reads state information for each configuration item of the CANS system and shows it to the network manager. Performs a PVC management function to retrieve status management and PVC information, or to delete an existing PVC or to set up a new PVC.

Remote configuration item status management function for CANS system using SNMP of network management system. Network management system reads board status and port status information about remote CANS system from CANS system's SAGB at regular intervals. Performs a function to show status information about the network manager.

The remote PVC management function for the CANS system is designed to read the information on the PVCs set in the CANS system from the CANS system and display it to the network manager on the screen when the network manager requests the retrieval of PVC information. Therefore, it releases the already set PVC and sets the new PVC to the CANS system.

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

1 is a network management structure diagram of a centralized access node system using a simple network management protocol (SNMP) protocol.

In the figure, 1 is a centralized access node system (hereinafter referred to as CANS), 2 is a remote network management system, 3 is a physical layer Sb access board (hereinafter referred to as PSIB), and 4 is called ATM (hereinafter referred to as ATMB). ), 5 is a multiplex and demultiplexing board (hereinafter referred to as MDPB), 6 is a physical layer Tb interface board (hereinafter referred to as PTIB), 7 is an ATM layer control processing board (hereinafter referred to as ACPB), 8 is a system control processing board (Hereinafter referred to as SCPB), 9 is a physical layer control block (hereinafter referred to as PLCB), 10 is an ATM layer control block (hereinafter referred to as ALCB), 11 is a system management function block (hereinafter referred to as SMFB), 12 is user matching Block (hereinafter referred to as MMIB), 13 as signal block (hereinafter referred to as SIGB), 14 as SNMP agent block (hereinafter referred to as SAGB), 15 as protocol processing section, 16 as performance management section, 17 as fault management section, 18 as configuration management section 19 is port status management block, 20 is board status management block, 21 is PVC management Block 22 is a configuration information output block 23 is a PVC information search block 24 is a PVC setting block 25 is a PVC delete block 26 is a network management screen.

The CANS 1 includes a PSIB 3, an ATMB 4, an MDPB 5, a PTIB 6, and the like. The CANS 1 receives data input from a user through the PSIB 3, and the ATMB 4 and This function multiplexes and demultiplexes these data through the MDPB (5) block and transmits them to the network side through the PTIB (6), and conversely, the data input from the network side through the PTIB (6) is transmitted to the MDPB (5) and ATMB (4). After passing through the block, it delivers to the user through the PSIB block. The CANS 1 includes an SMFB 11 and an SIGB 13 to perform a system management function and a call processing function, an MMIB 12 to provide a user matching function, and a SAGB 14 network. Perform management agent functions.

The remote network management system 2 includes a performance management 16 block, a failure management 17 block, a configuration management 18 block, and a protocol processing block 15 shared by the three blocks. (1) Perform configuration management, fault management, and performance management for the system.

When the configuration information in the CANS (1) system is changed, the information is immediately transmitted to the SMFB (11) block, which maintains state information on all configuration information and configuration items of the CANS (1) system.

The port state management block 19 and the board state management block 20 existing in the configuration management unit 18 of the remote network management system 2 grasp the status information about the board and port for the remote CANS system. In order to request the board and port status information from the SAGB 14 block in the CANS system, the SAGB 14 block sends this information to the SMFB 11 block upon receiving a request for the port and board status information. It reads from and passes back to the configuration management unit 18 in the remote network management system (2).

In the CANS (1) system, the management function for PVC information and the function of setting and releasing PVC are performed by the SMFB (11) block, and the SAGB (14) block is the PVC management block (21) in the remote network management system (2). If there is a request for PVC information, or if there is a request for setting or releasing the PVC, it is received and forwarded to the SMFB 11 block, and the result is returned to the PVC management block (2) in the remote network management system (2). 21) to carry out the function.

The present invention relates to a board state and a port state from a port state management block 19 and a board state management block 20 in the remote network management system 2 periodically from the SAGB 14 block existing in the CANS 1. Read the information and analyze it to output the status information to the network management screen (26) and according to the request of the network manager input through the network management screen (26) to retrieve the PVC information of the CANS located in the remote location or to find a new PVC Performs a function of setting or releasing a PVC that is already set.

2 is a flowchart illustrating a CANS configuration management method at a remote location using SNMP according to the present invention.

When the initialization 30 for the remote network management system is performed to provide a remote configuration management function, a callback routine to be performed 31 is scheduled to be performed for each event (Event) input to the network management system. After the reservation for the callback routine is completed, the status information request period for the port and the board is set (32), and the event is waited for until the event is input to the system (33).

Since the remote network management system operates as an event base, it always waits for an occurrence of an event, and if an event is input, it performs a corresponding procedure according to the event. Callback routine refers to the execution procedure corresponding to each case.

When the previously set port and status information request period has elapsed, a setting cycle elapsed event is automatically generated. When the configuration management unit 18 in the remote network management system 2 receives the event (34), it reads the status of the board and port from the remote CANS system 1 and displays the status information on the network management screen 26. Perform procedures 35-67. The above procedure is largely a process of reading the port and board status information from the SAGB 14 block existing in the remote CANS system 1 (45 to 51) and analyzing the read status information to manage the network management screen (26). And the procedures 57 to 67 for outputting the data.

The procedures 45 to 51 for requesting information from the SAGB 14 block in the CANS system 1 and receiving the requested information from the SAGB 14 block by the remote network management system 2 are as follows. First, a session 45 is established between the network management system 2 and the SAGB 14 blocks in the CANS system 1. After generating a protocol data unit (hereinafter referred to as a PDU) to be transmitted to the SAGB 14 block, the specification of the required information is loaded into the PDU and transmitted to the SAGB 14 block 47, and then a response is made. Wait until it arrives. At this time, if the waiting time for response exceeds the threshold, it is checked if the number of PDU transmissions exceeds the threshold (49) .If it exceeds, it is determined that the response does not come. Waiting for the reception of 33, and if the number of PDU transmission times does not exceed the reference value, the PDU is retransmitted (50). If a response arrives within the response waiting time, a predetermined processing procedure (52 to 56) is performed according to the type of response received.

When the remote network management system 2 receives a response to the board status information from the SAGB block 14 of the CANS system 1 (52), it first identifies the board ID from the response PDU (57) and analyzes the board status. (58) displays the status of the corresponding board (59), and then checks whether the received response carries information about the last board (60), and reads the status information of the next board if it is not the last board. 45 to 51, 52), and if the state information of the last board is loaded, the process of reading the state information of the board is completed and then the procedures 45 to 51 and 53 are read.

When the remote network management system 2 receives (53) a response to the port status from the SAGB block 14 of the CANS system 1, it first identifies the port ID from the PDU (63) and analyzes the port status ( 64) display the status of the corresponding port (65), check if the port ID is the last port (66), if it is not information about the last port, request the status information of the next port (67), and When the information about the port is received, it waits for the next event (33) to occur.

When the remote network management system 2 receives the PVC information retrieval request event from the network manager while waiting for an event to occur 33, the PVC is sent from the SAGB 14 of the remote CANS system 1. Perform procedures (45 to 51, 54) for reading information.

Receiving PVC information from the CANS system (54) (54), it stores the received PVC information (68) and then checks that there is no more PVC information (69), if there are more PVCs, the information on the next PVC is displayed. Ask the CANS (1) system again. If the PVC no longer exists, after outputting the information on the stored PVCs on the network management screen (26), and receiving a command to close the PVC information screen from the network manager (72), the PVC information screen is closed and the next event occurs. Wait (33).

When the remote network management system 2 receives the PVC setting request event from the network manager in the state of waiting 33 for event occurrence (38), the PVC information to be set and the information indicating the PVC setting are transmitted to the SAGB (1) of the CANS system (1). 14), and perform the procedure (39, 40, 45 ~ 51, 55) to receive a response to the PVC setup result.

Upon receiving the PVC setting request event from the network manager, the information about the PVC to be set is input from the network manager (39), and the information indicating the PVC setting is loaded (40) and transmitted to the SAGB (14) block of the CANS system (1). (45 to 51). After performing the above procedure, if a response to the PVC setting result is received from the CANS system 1 (55) (55), the success of the PVC setting is checked (75). If the PVC setup succeeds, the PVC setup success message is output (76), and if it fails, the cause of failure (77) is output, and the PVC setup information is re-entered from the network manager (78). Perform the required procedure (45 ~ 51) again.

When the remote network management system 2 receives the PVC release request event from the network manager while the event is waiting for an event 33, 41, the PVC information to be released and information indicating the release of the PVC are transmitted to the CANS system 1. A procedure 42, 43, 45-51, 56 is performed to deliver to the SAGB 14 and receive a response to the PVC release result. First, when the PVC release request event is received from the network manager, the information about the PVC to be released is input from the network manager (42), and the information indicating PVC release is carried out (43). Transfer to block (45 to 51). After performing the above procedure, if the response to the PVC release result is received from the CANS system 1 (56), the PVC release success is checked (81). As a result of the inspection, if the PVC release is successful, a message indicating the PVC release success is output (82). If the failure is unsuccessful, the failure cause is outputted, and then the information is input again from the network manager (84). Repeat the procedure (45 to 51).

When the remote network management system 2 receives a system shutdown request event from the network manager in the state of waiting 33 for event occurrence (33), the configuration management procedure at the remote site for the CANS (1) system is terminated.

Therefore, the present invention performed as described above has the effect that the operator can remotely grasp the operation status of the configuration information and configuration items by using the network management function and to set or release the permanent virtual channel.

Claims (8)

Applied to a system having a centralized access node system (CANS) and a remote network management system connected to the centralized access node system (CANS) to manage configuration of the centralized access node system (CANS) at a remote location. In order to provide a remote configuration management function, when the initialization 30 is performed for the remote network management system, a first step of reserving 31 a callback routine to be performed for each event (Event) input to the network management system; After the reservation for the callback routine is completed, the second step of setting the status information request period for the port and the board (32), and waiting for the occurrence of the event (33) until an event is input to the system, and the previously set port and board status A third step of receiving the event 34 by the configuration management unit 18 in the remote network management system 2 when an information request cycle has elapsed and a setting cycle elapsed event is automatically generated. And a fourth step (45 to 51) of reading the state of the board and the port from the remote centralized access node system (CANS) 1, and analyzing and reading the read state information on the network management screen 26. 5. A configuration management method for a centralized access node system (CANS) at a remote location, comprising five steps (57 to 67). The method of claim 1, wherein the fourth step comprises a first process of establishing a session between the network management system 2 and the simple network management protocol agent block (SAGB) 14 in the CANS system 1 (45). After generating a protocol data unit (hereinafter referred to as a PDU) to be transmitted to the SAGB 14 block, the specification of the required information is loaded into the PDU, and then transmitted to the SAGB 14 block 47. The second process of waiting until the response arrives, and if the waiting time for the response exceeds the reference value (49), checks whether the number of PDU transmissions has exceeded the reference value. After outputting the cause of failure (51) and waiting for reception of the next event (33), and if the PDU transmission frequency does not exceed the reference value, the third process of retransmitting (50) the PDU, and the response arrives within the response waiting time. Depending on the type of response And a fourth step of performing a lost processing procedure. 4. The method of claim 2, wherein the fourth process comprises: when the remote network management system 2 receives (52) a response to the board status information from the SAGB block 14 of the CANS system 1, first from the response PDU; Identifying the board ID (57), analyzing the board status (58) to display the status of the board (59), and checking whether the received response carries information about the last board (60). If not, perform the procedure (45 ~ 51, 52) to read the status information of the next board. If loading status information for the last board, finish reading the status information for the board and read the status information for the port. 45 to 51, 53) comprising the steps of performing a configuration management method of a centralized access node system (CANS) at a remote location. 4. The method of claim 2, wherein the fourth process further comprises, when the remote network management system 2 receives (53) a response to the port status from the SAGB block 14 of the CANS system 1, first from the PDU. In the case of identifying the ID (63) and analyzing the port status (64) to display the status of the corresponding port (65), and checking if the port ID is the last port (66), if the information is not about the last port, Requesting status information of the next port (67), and receiving information on the last port, waiting 33 for generation of the next event (Event). Configuration management method of CANS). The SAGB method of claim 1, wherein the fifth step comprises receiving a PVC information retrieval request event from a network manager in a state of waiting for an event occurrence 33. ) Process of reading the virtual permanent channel (PVC) information from (45 ~ 51,54), and when the PVC information is received from the CANS system (54) (54), the received PVC information is stored (68). Process of checking if there is no PVC information anymore (69), if there is more PVC, requesting information about the next PVC back to the CANS (1) system, and storing the PVC if it is no longer present. Outputting the information on the network management screen 26 and receiving the PVC information screen close command from the network manager (72), closing the PVC information screen and waiting for the next occurrence of the event (33), characterized in that it comprises a Configuration management of centralized access node systems (CANS) Law. The method of claim 1, wherein in the fifth step, upon receiving (38) a PVC setting request event from a network manager in a state of waiting for the occurrence of an event (33), CANS is set for information on PVC and information indicating PVC setting. The procedure (39, 40, 45 ~ 51, 55) to pass to the SAGB (14) of the system (1) and receive a response to the result of the PVC setting, and when receiving a PVC setting request event from the network manager to set Receives information about PVC from network manager (39), loads information indicating PVC setting (40) and delivers (45 to 51) to SAGB (14) block of CANS system (1), CANS system ( Receiving a response to the PVC setting result from 1) (55), the process of checking whether the PVC setting is successful (75), if the PVC setting is successful as a result of the test, outputs a PVC setting success message (76), and fails. After outputting the cause of failure (77), re-enter information about the PVC to be set from the network manager (78). Configuration management method of Arthur procedure requiring PVC settings (45 to 51) to again perform remote centralized access in characterized in that it comprises the step, that the node system (CANS). The CANS system according to claim 1, wherein the fifth step comprises receiving PVC release request event from the network manager in the state of waiting for the occurrence of the event 33 to inform the release of the PVC information and PVC release information. Performing the procedure (42, 43, 45 to 51, 56) of delivering to the SAGB 14 of (1) and receiving a response to the PVC release result, and releases a PVC release request event from the network manager. Receiving information about the PVC to be received from the network manager (42), carrying the information indicating the PVC release (43) the process of the CANS system (1) transfers to the SAGB (14) block (45 to 51), CANS system When receiving a response to the PVC release result from (1) (56), the process of checking the PVC release success (81), if the PVC release is successful as a result of the test outputs a message indicating the PVC release success (82), and failed If so, print out the cause of failure and re-inform the PVC information to be released from the network manager. Force 84 receiving the configuration management method for remote access to a centralized node system (CANS) in which is characterized in that it comprises the step, the procedure (45 to 51) requiring a PVC off again. The method of claim 1, wherein the fifth step comprises receiving a system shutdown request event from a network manager while waiting for an event to occur (33) and ending the configuration management procedure at a remote location for the CANS (1) system. Configuration management method of a centralized access node system (CANS) at a remote location comprising the step of.