KR100651720B1 - Method for magnaging states of Boards and Ports in EPON-based Passive Optical Equipment - Google Patents

Abstract

In the Ethernet-based passive subscriber device, the board and port state management method includes: defining information indicating a state of a board constituting a system as at least one state information; Combining the state information to define the overall state of each board; Combining the state information with the overall state and transitioning the state of the board based on information input from the outside; And storing the state information, the overall state, and the transitioned result. The overall state is defined by using the state information of the board and the port, and the correlation between the state of the board and the port is changed. While defining, we present shared memory method and information structure for information sharing with other functional units. Through this, other functional units minimize the possibility of unnecessary or malfunction through accurate status information on the constituent resources of the device, and provide the device operator with the correct operation status of the device at all times. By taking appropriate measures, errors in network services that may occur due to abnormalities in the network or devices constituting the network can be minimized.

Description

Method for magnaging states of Boards and Ports in EPON-based Passive Optical Equipment

1 is a network structural diagram showing an Ethernet-based passive optical subscriber network configuration to which the present invention is applied.

Figure 2 is a block diagram of the operation management block of the Ethernet-based passive optical subscriber device to which the present invention is applied.

Figure 3 is a relationship between the functional units constituting the operation management block of the Ethernet-based passive optical subscriber device to which the present invention is applied.

4 is a board state transition diagram of an Ethernet-based passive optical subscriber device to which the present invention is applied.

5 is a port state transition diagram of an Ethernet-based passive optical subscriber device to which the present invention is applied.

<< Abbreviations used in the Detailed Description or the Claims >>

EPON Ethernet Passive Optical Network

OLT Optical Line Termination

ONU Optical Network Unit

ONT Optical Network Terminal

PATH Photonic Access To The Home

PathTCA PATH Telecom Computing Architecture

AAA Authorization, Authentication, Accounting

EAP Extended Authentication Protocol

EAPoL EAP over LAN

RADIUS Remote Authentication Dial In User Service

EAPoRADIUS EAP over RADIUS

DHCP Dynamic Host Configuration Protocol

IP Internet Protocol

STB Set Top Box

IPC Inter Process Communication

SNMP Simple Network Management Protocol

The present invention relates to a state machine for managing a board and a port constituting a system and a method thereof, and more particularly, a board having a configuration management function operating in conjunction with a failure management function among operations management functions for management of a network device. And a state management information structure for state management of a port, a state machine, and a method thereof.

Conventionally, one board aggregates and manages the status of the remaining boards for managing the status of several boards mounted on the device. If an abnormality occurs in this board, one of the remaining boards is assigned to manage the remaining boards. Most of the inventions have been made on how to manage board mounting information on a wireless access device or a wireless subscriber access device. However, there is a suggestion on how the state information collected in this way is actually managed according to various changes occurring during the operation of the device, and how to accurately represent the current state of the resources constituting the device by using the various types of state information obtained. There was no. There is also a lack of state change mechanisms associated with various changes that occur during device operation.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and defines three types of detailed state information for state management of a board and a port, respectively, and the current state of a board or a port using these state information. It is to provide a method for determining the state as four states, and a state machine management method in which the state of the board and the port transitions according to the state transition information of the resource in conjunction with the fault management function.

In order to achieve the above technical problem, a board management method of a passive optical subscriber device according to the present invention includes the steps of defining information representing a state of a board constituting a system as at least one or more state information; Combining the state information to define the overall state of each board; Combining the state information with the overall state and transitioning the state of the board based on information input from the outside; And storing the state information, the overall state, and the result of the transition.

In order to achieve the above technical problem, the board management method of the passive optical subscriber device according to the present invention includes the steps of defining information indicating a state of a port as at least one state information; Combining the state information to define an overall state of each port; Combining the state information with the overall state and transitioning the state of the port based on information input from the outside; And storing the state information, the overall state, and the transitioned result.

Hereinafter, a preferred embodiment of a board and port management method according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a network structural diagram showing an Ethernet-based passive optical subscriber network configuration to which the present invention is applied. The Ethernet-based passive subscriber network consists of one mother station device (OLT or PathTCA, 101) and several local station devices (ONU or ONT: 103). The mother station apparatus 101 and the host apparatus 103 are connected at a 1 Gbps or 10 Gbps level, and physically transmit an optical signal through an optical path. At this time, the slave devices 103 are branched and connected up to 32 with the same optical signal through the PON splitter 102 of the optical distribution network. As the subscriber station 104, a general PC or an IP STB is used, and the integrated authentication server 105 performs subscriber station authentication, subscriber authentication, and dynamic IP address assignment. The broadcast server 106 is a system for converting various over-the-air broadcasts into IP data and transmitting them to an IP network using IP multicasting, and the VOD server 107 provides a VOD (Video on Demand) service.

2 is an operation management block diagram of an Ethernet-based passive optical subscriber network device to which the present invention is applied and is mounted and operated on a main processor board of a mother station device. The network management agent 202 is responsible for a function of enabling SNMP-based system operation management together with the network management manager, and the operator matching unit 203 receives the operator's operation command in CLI form, and interprets the operation command. In addition, it performs a role of delivering to a corresponding functional unit, and plays a role of displaying a processing result of each functional unit to an operator terminal. The configuration management unit 204 is a function unit for managing the shape of the device, including the state management of boards and ports, sets the configuration shape at the time of device initialization, and directly controls each interface provided by the OS.

The failure management unit 205 controls failures occurring in the device, and the performance management unit 206 collects and manages performance information of each interface. The SLA management unit 207 manages SLA indicators based on failure and performance information, and the shared memory unit 208 stores state information of the system and shares state information of the system with other functional units. The IPC control unit 209 controls the system operation information to be transmitted / received between the respective functional units, and mediates them when performing the IPC communication with the operation maintenance unit mounted on the board.

Figure 3 is a relationship diagram between the functional units constituting the operation management block of the Ethernet-based passive optical subscriber device to which the present invention is applied. As mentioned in FIG. 2, the device operator 301 controls the device using a CLI-based operation command through the operator matching unit 203 and grasps an operation state of the device. The network management manager 302 obtains operation information of the device using a network management agent and the SNMP protocol. Other operation management functions receive the operation command through the operator matching unit, notify the operator of the processing result, and interwork with the network management system through the network management agent. These functional units exchange operation information of the device using a predetermined IPC message through the IPC control unit 209. Of course, communication with the board operation maintenance unit 211 mounted on each board is also via the IPC control unit 209.

The configuration manager 204, the fault manager 205, the performance manager 206, and the SLA manager 207 share the operation information of the device. There are various methods for sharing information, but the present invention uses a shared memory method. Shared memory is a method in which a certain area is set in the memory of the processor board to record information to be shared, and each functional block accesses this information to obtain necessary information.

The shared memory 208 stores state information of a board as shown in FIG. 4 and state information of a port as shown in FIG. 5. The configuration manager 204 is responsible for allocating shared memory and managing status information of boards and ports. Accordingly, the configuration manager 204 may generate, change, or delete state information of boards and ports. However, other functional units can only retrieve the status information of boards and ports stored in shared memory, but cannot create, change or delete them.

4 is a board state transition diagram of an Ethernet-based passive optical subscriber device to which the present invention is applied. The board status information is displayed using three variables. First, manageInfo (described as management target information in the claims) indicates whether a board mounted on a device is managed (true) or not (false) in a device provisioning step. The equipStatus (described as mounting / hernia information in the claims) indicates whether the board is mounted (true) or hernia (false), and the board's normal or abnormal operating status is oprStatus (patented). In the claims, it is described as operation information).

The overall state of the board divided using these three state information is an unmanaged state 401, a hernia state 402, a normal state 403, and an abnormal state 404. In the case of the unmanaged state 401, whether the mount / hernia or the operation state is meaningless, and the hernia state 402 means that the board to be managed is hernia detached from the current device, and therefore, there is no meaning of normal operation. . The normal state 403 means that the board to be managed is currently mounted on the device and operates normally, and the abnormal state 404 means that the board to be managed is mounted but does not perform a normal function.

Initially, when the operation management block 201 is initialized and the configuration management unit is activated, it becomes an unmanaged state 401. However, when the device provisioning or the add line card is performed by the operator command, the state transition to the abnormal state 504 is performed. When the board_Status_Change (normal) or Board_Init (normal) message is received from the failure management unit in an abnormal state, the state is changed to the normal state 403. On the contrary, when the board_Status_Change (abnormal) or Board_Init (abnormal) message is received in the normal state 403, the state is changed to the abnormal state 404. When the board_Equip_Change (not equip) message is received in the normal state or the abnormal state 404, the state changes to the hernia state 402 because the board is detached from the device.

Thereafter, if the board_Equip_Change (equip) message is received in the hernia state 402, this means that the board is mounted, and thus, the state transitions to the abnormal state 404. When the no linecard command is received from the operator in each state, the board is no longer managed and changes to the unmanaged state (401). Whenever this state change occurs, the corresponding board information of the shared memory 208 is changed through the configuration management unit 204 so that other functional units can know the state change of the board.

5 is a port state transition diagram of an Ethernet-based passive optical subscriber device to which the present invention is applied. Port status information is represented using three variables. First, manageInfo (described as management target information in claims) indicates whether to manage (true) or not manage (false) a corresponding port of a board mounted in a device in a device provisioning step. adminStatus (described in the claims as blocking information) indicates whether the port is blocked (true) or unblocked (false) by the operator, and the port's up or down operating status is oprStatus ( In the claims, it is described as operation information).

The overall state of a port divided by using the three state information is an unmanaged state 501, a block state 502, a normal state 503, and an abnormal state 504. In the case of the unmanaged state 501, whether blocking or an operation state is meaningless, and the block state 502 means a state in which a port to be managed is blocked by the current operator, and therefore, whether or not the normal operation is insignificant. The normal state 503 means that a port to be managed is currently mounted in a device and operates normally. An abnormal state 504 means that a port to be managed is mounted but does not perform a normal function.

Initially, when the operation management block 201 is initialized and the configuration management unit 204 is activated, it becomes an unmanaged state 501. However, when the device is provisioned or the add interface is executed by the operator command, the state transition to the abnormal state 504 is performed. When the Poard_Status_Change (up) message is received from the failure management unit in an abnormal state, the state changes to the normal state 503. On the contrary, when a Poard_Status_Change (down), Board_Status_Change (abnormal), or Board_Equip_Change (not equip) message is received in the normal state 503, the state changes to an abnormal state 504. Upon receiving the shutdown command from the operator in the normal state 503 or the abnormal state 504, the state is changed to the block state 502. After that, when a no shutdown command is received from the operator in the block state 502, the state transitions to the abnormal state 504. When the no interface command is received from the operator in each state, the port is no longer managed, so the state changes to the unmanaged state 501. Whenever this state change occurs, the corresponding port information of the shared memory 208 is changed through the configuration management unit 204 so that other functional units can know the state change of the port.

In the Ethernet-based passive optical subscriber device according to the present invention, the board and port state management method may also be embodied as computer readable codes on a computer readable recording medium. The computer-readable recording medium includes all kinds of recording devices in which data that can be read by a computer system is stored. Examples of computer-readable recording media include ROM, RAM, CD-ROM, magnetic tape, hard disk, floppy disk, flash memory, optical data storage device, and also carrier wave (e.g. transmission over the Internet). It is also included to be implemented in the form of. The computer readable recording medium can also be distributed over computer systems connected over a computer network so that the computer readable code is stored and executed in a distributed fashion. Also, the font ROM data structure according to the present invention can be read by a computer on a recording medium such as a computer readable ROM, RAM, CD-ROM, magnetic tape, hard disk, floppy disk, flash memory, optical data storage device, and the like. It can be implemented as code.

As described above, the present invention has been described based on the preferred embodiments, but these embodiments are intended to illustrate the present invention, not to limit the present invention, and those skilled in the art to which the present invention pertains should be practiced without departing from the technical spirit of the present invention. It will be apparent that various changes, modifications, or adjustments to the examples are possible. Therefore, the protection scope of the present invention will be limited only by the appended claims, and should be construed as including all such changes, modifications or adjustments.

As described above, the method of managing board and port states in an Ethernet-based passive optical subscriber device is a state machine for managing the state of boards and ports of a network device constituting the Ethernet-based passive optical subscriber network. The board status using three detailed status information, namely, management target information, hernia information, and operation information, is divided into unmanaged, hernia status, normal status, and abnormal status. The state of the port using the detailed state information, that is, the management target information, the blocking information, and the operation information, is represented as an unmanaged state, a blocking state, a normal state, or an abnormal state. In addition, this paper presents a shared memory method and information structure for sharing information with other functional units while defining the relationship between port state changes according to board state changes. Through this, other functional units minimize the possibility of unnecessary or malfunction through accurate status information on the constituent resources of the device, and provide the device operator with the correct operation status of the device at all times. By taking appropriate measures, errors in network services that may occur due to abnormalities in the network or devices constituting the network can be minimized.

Claims (11)

(a) defining information representing a state of a board constituting the system as at least one state information; (b) combining the state information to define the overall state of each board; (c) combining the state information with the overall state and transitioning the state of the board based on information input from the outside; And (d) storing the state information, the overall state, and the transitioned result; Step (b) is An unmanaged state indicating that the board is not managed, a hernia state indicating that the board is herniad from the system, a normal state indicating that the board is in normal operation, and an abnormal state indicating that the board is showing an error. Defining as the overall state; including, Step (c) is (c1) setting an initial state of the board to an unmanaged state; (c2) transitioning from an unmanaged state to an abnormal state after system provisioning or in response to a message that the board is mounted externally; (c3) transitioning to a normal state upon receiving a message indicating that the board has become normal or a board initialization message in the abnormal state; (c4) transitioning to an abnormal state upon receiving a message indicating that the board has become abnormal or a board initialization message in the normal state; (c5) transitioning to the hernia state when receiving a message that the board is hernia in the normal state or the abnormal state; And (c6) when receiving a message that the board is mounted in the hernia state, the transition to the abnormal state; board management method of a passive optical subscriber device comprising a. The method of claim 1, wherein step (a) Defining as management status information indicating whether or not the board is a management target, mounting / dismounting information indicating whether the board is mounted or hernia, and operation information indicating whether the board is normally operated as the status information; Board management method of a passive optical subscriber device comprising a. delete delete The method of claim 1, wherein step (c) And translating the state to an unmanaged state when receiving a message that the board does not exist in each state. (a) defining information representing a state of a port as at least one state information; (b) combining the state information to define the overall state of each port; (c) combining the state information with the overall state and transitioning the state of the port based on information input from the outside; And (d) storing the state information, the overall state, and the transitioned result; Step (b) is The overall state includes an unmanaged state indicating that the port is not managed, a block state indicating that the port is blocked, a normal state indicating that the port is in normal operation, and an abnormal state indicating that the board is showing an error. Defining as; Step (c) is (c1) setting an initial state of the port to an unmanaged state; (c2) transitioning from an unmanaged state to an abnormal state after system provisioning or externally according to an interface activation message for the port; (c3) transitioning to a normal state upon receiving a message indicating that the port has become normal in the abnormal state; (c4) transitioning from the normal state to an abnormal state upon receiving a port state abnormal message, a message that a board has become abnormal, or a board detachment message; (c5) transitioning to a block state when a port function stop message is received in the normal or abnormal state; And and (c6) transitioning to the abnormal state upon receiving the block release message in the block state state. The method of claim 6, wherein step (a) Defining as management status information indicating whether the port is a management target, blocking information indicating whether the port is blocked, and operation information indicating whether the port is in normal operation as the status information; Port management method of a passive optical subscriber device, characterized in that. delete delete The method of claim 6, wherein step (c) And transiting the state to an unmanaged state when receiving a message that the interface of the port does not exist in each of the states. The method of claim 1 or 6, wherein step (d) And limiting read / write and change of the stored result.

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