JP2011259063A - Management system, center side device, subscriber side device, and management device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a management system, a center side device, a subscriber side device, and a management device capable of managing, at a host system, unique identification information of terminals which are connected to and under the control of a user side device.SOLUTION: The present invention comprises a center side device and one or more subscriber side devices, is a management system for managing terminals existing under the control of each subscriber side device, and further comprises: a management means for connecting to the center side device and managing connection states under the control of each subscriber side device by a state storage means; a link state notification means for notifying link state signals of the terminals connected to an interface means of each subscriber side device; a state monitoring means for monitoring link states of the terminals connected to each subscriber side device based on the link state signals; and a state event signal notification means for, in response to the detection of a predetermined state by the state monitoring means, notifying the management means of state event signals according to the predetermined state. The management means manages the unique identification information of the terminals for each subscriber side device according to the state event signals.

Description

  The present invention relates to a management system, a center side device, a subscriber side device, and a management device. For example, in a communication system, the center side device acquires and manages unique identification information of a network device connected to the subscriber side device. It can be applied to a management system, a center side device, a subscriber side device, and a management device.

  In recent years, with the progress of communication system technology, users can connect to a network using an access network using, for example, an optical fiber or a broadband line, and can receive a high-speed and broadband communication service.

  FIG. 2 is a configuration diagram illustrating a configuration example of a conventional communication system. FIG. 2 shows a configuration example of a communication system in which the center side connected to the core network NT forms an access network with a plurality of user sides.

  The center side includes an OLT (Optical Line Terminal) 91 connected to the core network NT via a network device 93 such as an edge router or L2SW.

  The OLT 91 is connected to a plurality of user-side D-ONUs (data communication optical network units: subscriber-side terminating devices) 94 via, for example, optical fibers, in order to be accessible to a plurality of users. To do.

  On the user side, the D-ONU 94 can be connected to one or a plurality of network devices (also simply referred to as terminals) under the control of the D-ONU 94. FIG. 2 shows a VoIP-TA 95, a personal computer (PC) 96, and a notification terminal 97 that are connected to the IP telephone 98 as examples of network devices connected to the D-ONU 94.

  The D-ONU 94 converts information received from a network device connected to the subordinate to an optical signal and transmits it to the OLT 91, converts an optical signal received from the OLT 91 into an electric signal, and converts the received information to a destination network. Give to equipment.

  Conventionally, the D-ONU 94 is connected to a network device via a connection port. When a frame is received from the network device, the received connection port number is associated with the MAC address of the network device included in the frame. By managing, information transmission of each network device can be realized (see Patent Documents 1 and 2).

JP 2006-203789 A JP 2008-054086 A

  However, in the conventional case, the D-ONU on the user side learns and manages the MAC address of each subordinate network device, but the center side manages the MAC address of the network device connected to the D-ONU. Not. For this reason, the center side cannot recognize which network device is connected to the D-ONU on each user side.

  For example, a case where the user receives provision of the 0AB to J telephone service will be described as an example. In FIG. 2, when the user receives provision of the 0AB to J telephone service, the VoIP-TA 95 that implements the 0AB to J telephone service is connected to the D-ONU 94.

  For example, the techniques described in Patent Document 1 and Patent Document 2 can be applied to the system that performs the 0AB to J telephone service. The VoIP-TA 95 holds the MAC address of the IP telephone set 98 and the connection port in association with each other, and the IP address is issued by an address issuing device (for example, DHCP) on the network. Then, the server on the network manages the telephone number (0AB to J) and the IP address in association with each other, thereby specifying the position of the IP telephone 98 of the telephone number (0AB to J) and providing the telephone service. To do.

  However, the center side cannot recognize the VoIP-TA 95 connected to the D-ONU 94. For this reason, for example, when another VoIP-TA 95 is connected to or exchanged with the D-ONU 94, the center side does not manage the network equipment connected to the D-ONU 94. There may be cases where it cannot be provided.

  For example, the VoIP-TA95 used by the user in the Yokohama area code (045-XXX-XXXX) is connected to the D-ONU in Tokyo (03-XXXX-XXXX) connected to the same OLT 91. If it is used, it may be connected with the Yokohama telephone number system when connected to the network, and the location cannot be specified as the 0AB to J telephone service, so the service may not be realized. is there.

  Therefore, the present invention provides a management system, a center side device, a subscriber side device, and a management device that can manage the unique identification information of network devices connected under the user side device in a host system.

  In order to solve such a problem, the management system of the first aspect of the present invention includes a center side device and one or more subscriber side devices connected to the center side device, and exists under each of the subscriber side devices. In the management system for managing the terminal, (1) status storage means for storing the connection status under the control of each subscriber side device, and (2) connected to the center side device, (3) a link state notifying unit for notifying a link state signal indicating a link state of a terminal connected to the interface unit of each subscriber side device, and (4) ) Based on the link status signal from the link status notification means, status monitoring means for monitoring the link status of the terminal connected to each subscriber side device; and (5) triggered by detection of a predetermined status by the status monitoring means. The given A state event signal notifying means for notifying the management means of a state event signal corresponding to the state, and the management means is specific to the terminal connected to the subscriber side device according to the state event signal from the state event signal notifying means. The identification information is managed for each subscriber side device.

  The center-side device of the second aspect of the present invention comprises a center-side device and one or more subscriber-side devices connected to the center-side device, and manages the status of terminals existing under each subscriber-side device. In the center side device constituting the management system managed by the means, (1) each subscriber side based on the link state signal indicating the link state of each subscriber side device from the link state notification means provided in each subscriber side device State monitoring means for monitoring the link state of a terminal connected to the device, and (2) a state event for notifying the management means of a state event signal corresponding to the predetermined state upon the detection of the predetermined state by the state monitoring means And a signal notification means.

  A subscriber-side device according to a third aspect of the present invention includes a center-side device and one or more subscriber-side devices connected to the center-side device, and the state of a terminal existing under each subscriber-side device is: In the subscriber side apparatus constituting the management system managed by the management means connected to the center side apparatus, (1) the interface means connected to the terminal and (2) the unique identification information for managing the unique identification information of the terminal connected to the interface means Identification information management means, and (3) link status notification means for notifying a link status signal indicating the link status of the terminal connected to the interface means, and the unique identification information management means responds to a request from the management means. The information included in the management table for managing the unique identification information managed by itself is given to the management means via the center side device.

  A management device according to a fourth aspect of the present invention is a management device comprising a center side device and one or a plurality of subscriber side devices connected to the center side device, and managing a terminal existing under each of the subscriber side devices. (1) State storage means for storing the connection state under the control of each subscriber side device, and (2) State storage means for connecting to the center side device and the connection state under the control of each subscriber side device. Management means for managing the status event signal received from the status event signal notification means of the center side device when the link status of the terminal connected to the subscriber side device is a predetermined status. Accordingly, the unique identification information of the terminal connected to the subscriber side device is managed for each subscriber side device.

  According to the present invention, the unique identification information of the network equipment connected to the communication device installed on the subscriber side of the communication system can be managed by the host system without making a significant change to the current system. The host system can specify the position of the network device connected to each communication device.

It is a whole lineblock diagram showing the whole communication system composition of an embodiment. It is a whole block diagram which shows the whole structure of the conventional communication system. It is an internal block diagram which shows the internal structure of the subscriber side apparatus of embodiment. It is an internal block diagram which shows the internal structure of the center side apparatus of embodiment. It is an internal block diagram which shows the internal structure of the management server of embodiment. It is explanatory drawing explaining the process which registers the MAC address of a subscriber side apparatus and VoIP-TA in a management server in embodiment. It is explanatory drawing explaining the example of a format of a state event signal in embodiment. It is explanatory drawing explaining the process which cancels | releases registration of the MAC address of VoIP-TA which a management server manages in embodiment. It is explanatory drawing explaining the process which cancels | releases registration of the MAC address of the subscriber side apparatus and VoIP-TA which a management server manages in embodiment.

(A) Main Embodiments Embodiments of a management system, a center side device, a subscriber side device, and a management device according to the present invention will be described below with reference to the drawings.

  In this embodiment, an embodiment in which the present invention is applied to a communication system that employs an optical access method as a user's access method to a network will be exemplified.

  The access method is not particularly limited, and can be widely applied such as an optical access method and an access method using a broadband line. Also, the optical access system exemplified in this embodiment is not particularly limited, and for example, a GE-PON (Gigabit Ethernet Passive Optical Network) system or the like can be widely applied.

(A-1) Configuration of Embodiment (A-1-1) Overall Configuration FIG. 1 is a configuration diagram showing a configuration example of a communication system of this embodiment. In FIG. 1, a communication system 10 according to the embodiment includes at least a subscriber side device 1, a VoIP-TA 2, a center side device 3, a management server 4, a multiplexer / demultiplexer 5, and an IP telephone 6.

  The subscriber-side device 1 is a communication device that is installed on the subscriber side (for example, the subscriber's home, office, etc.) and performs bidirectional data transmission with the opposite center-side device 3. For example, a data terminal unit (D-ONU) for data communication can be applied to the subscriber side device 1. Further, the subscriber side device 1 is connected to one or a plurality of network devices (also simply referred to as terminals) via the UNI. FIG. 1 shows a case of connecting to VoIP-TA 2 as an example of a network device.

  The VoIP-TA 2 is a terminal adapter that provides a telephone service to the IP telephone 6 to be connected. The VoIP-TA 2 is connected to the subscriber side apparatus 1 by a UNI (user network interface) such as 10/100/1000 BASE-T, for example.

  The center side device 3 is a communication device installed on the center side. The center side device 3 can be connected to the subscriber side devices 1 of a plurality of users through optical multiplexers / demultiplexers 5, and applies, for example, a line terminating device (OLT) on the center station side. be able to.

  The center side device 3 is connected to the management server 4. The center side device 3 monitors the state of the subscriber side device 1 on each user side, and notifies the management server 4 of event information corresponding to the state.

  Upon receiving event information from the center side device 3, the management server 4 manages the connection state of each subscriber side device 1 from the center side device 3. That is, the management server 4 manages the unique identification information of the network device connected to each subscriber side device 1 for each unique identification information of the subscriber side device.

  Here, the unique identification information is identification information for uniquely identifying a device such as a terminal or a device. For example, a MAC address, a serial number, or the like can be applied. In this embodiment, a MAC address is applied as an example of unique identification information.

  In addition, although the case where it connects with the one center side apparatus 3 is illustrated in FIG. 1, you may make it connect with the several center side apparatus 3. FIG. Thereby, the connection state of each subscriber side apparatus 1 which each of the some center side apparatus 3 communicates can be managed.

(A-1-2) Internal Configuration of Subscriber Side Device 1 FIG. 3 is an internal configuration diagram showing the internal configuration of the subscriber side device 1. In FIG. 3, the subscriber side device 1 includes at least a user side interface unit 11, a transfer processing unit 12, a MAC address management unit 13, a link state notification unit 14, an optical-electrical conversion unit 15, and a center side interface unit 16.

  The user-side interface unit 11 is an interface unit that connects network devices such as VoIP-TA2. The user-side interface unit 11 is provided with a plurality of connection ports, and is connected to the VoIP-TA 2 through the connection ports. The user side interface unit 11 exchanges data with the VoIP-TA 2 connected to the connection port.

  The transfer processing unit 12 performs transfer processing of the frame received from the user side interface unit 11 or the center side interface unit 16. When receiving the frame from the center side interface unit 16, the transfer processing unit 12 refers to the MAC address management unit 13 and relays the frame to the connection port corresponding to the transmission destination of the frame.

  The MAC address management unit 13 manages the MAC address of the VoIP-TA 2 connected via the user side interface unit 11. Various existing methods can be applied to the VoIP-TA2 MAC address management method by the MAC address management unit 13. For example, when receiving a communication frame from VoIP-TA 2, the MAC address management unit 13 manages the received connection port and the MAC address included in the communication frame in association with each other as a MAC learning read table. Thereby, the MAC address of VoIP-TA2 can be learned.

  The link state notification unit 14 notifies the center side device 3 of a signal indicating the link state of the connection port of the user side interface unit 11 to which the VoIP-TA 2 is connected. The link state notification unit 14 notifies UI-LINK up indicating link up when VoIP-TA2 is connected to the connection port, and notifies UI-LINK down indicating link down when VoIP-TA2 is removed from the connection port. To do.

  The photoelectric conversion unit 15 converts the optical signal input from the center side interface unit 16 into an electrical signal, or converts the electrical signal from the transfer processing unit 12 into an optical signal.

  The center side interface unit 16 is an interface unit that connects a connection line (for example, an optical fiber or the like) to the center side device 3. The center-side interface unit 16 transmits the optical signal converted by the photoelectric conversion unit 15 toward the center side, or gives the optical signal input from the center side to the photoelectric conversion unit 15. It is.

(A-1-3) Internal Configuration of Center Side Device 3 FIG. 4 is an internal configuration diagram showing an internal configuration of the center side device 3. In FIG. 4, the center side device 3 includes a subscriber side interface unit 31, an optical-electrical conversion unit 32, a transfer processing unit 33, a user side state monitoring unit 34, a user side state event notification unit 35, a server side interface unit 36, At least an NT side interface unit 37 is provided.

  The subscriber-side interface unit 31 connects a connection line with the subscriber-side device 1. The subscriber side interface unit 31 gives an optical signal input from the subscriber side to the optical-electrical conversion unit 32 or transmits an optical signal received from the optical-electrical conversion unit 32 to the subscriber side. It is.

  The photoelectric conversion unit 32 converts the optical signal input from the subscriber side interface unit 31 into an electrical signal, or converts the signal received from the transfer processing unit 33 into an optical signal.

  The transfer processing unit 33 performs transfer processing of a signal received from the subscriber side interface unit 31 or the NT side interface unit 37. The transfer processing unit 33 converts the optical signal from the photoelectric conversion unit 32 into an electrical signal, and gives the signal to the user-side state monitoring unit 34 when the signal indicates the system state. For example, the transfer processing unit 33 may determine whether the signal indicates a system state based on identification information included in the received signal.

  For example, the signal indicating the system state includes a signal indicating the link state from the subscriber side apparatus 1. In addition to this, the signal indicating the system state indicates a signal indicating the link state (for example, link up or link down) of the subscriber apparatus 1 itself, a signal for requesting registration of the subscriber apparatus 1 or exchange (change). A signal, a signal indicating the release of blockage, a signal when the normality of the subscriber device 1 is tested, and a monitoring result from a failure monitoring device of a network (for example, PON) on the communication system 10 (not illustrated in FIG. 1) Signals indicating the status of the interface unit (subscriber side interface unit 31, NT side interface unit 37) of the center side device 3, setting, resetting, failure, etc. may be applied.

  The user-side state monitoring unit 34 receives a signal indicating the system state from the transfer processing unit 33, and monitors the state on the user side based on the signal indicating the system state. In addition, the user-side state monitoring unit 34 gives the user-side state to the user-side state event notification unit 35 as a monitoring result.

  The user side status monitoring unit 34 has a different target to be recognized depending on the type of signal indicating the system status received from the transfer processing unit 33. For example, when receiving a signal indicating the link status from the subscriber side device 1, Based on the signal, it is detected that the connection port of the subscriber side device 1 is link up or link down.

  When the user-side state monitoring unit 34 receives the user-side state from the user-side state monitoring unit 34, the user-side state event notification unit 35 receives a state event signal corresponding to the state when the user-side state monitoring unit 34 detects the predetermined state. This is given to the side interface unit 36 and notified to the management server 4.

  For example, the status event signal notified by the user-side status event notification unit 35 includes a UI status enable event, a UI status disable event, and a UI status clear event.

  The UI status enable event is an event that causes the management server 4 to manage the connection state of the subscriber side device 1. The UI status enable event manages the MAC learning table of the subscriber side device 1 when, for example, the connection port of the subscriber side device 1 is a link up or a new registration or exchange (change) of the subscriber side device 1 In order to be managed by the server 4, the management server 4 is notified.

  The UI status disable event is an event for deleting the MAC address of the network device connected to the subscriber apparatus 1 managed by the management server 4. The UI status disable event is, for example, in the case of a link down of a connection port of the subscriber side device 1 or removal of the subscriber side device 1 while holding the MAC address of the subscriber side device 1 while In order to delete only the MAC address, the management server 4 is notified.

  The UI status clear event is an event for clearing information on the subscriber side device 1 managed by the management server 4. The UI status clear event is notified to the management server 4 in order to delete the MAC address of the subscriber side device 1 and the MAC address of the network device connected thereto.

  The server-side interface unit 36 is an interface unit that exchanges information with the management server 4.

  The NT-side interface unit 37 is an interface unit that exchanges information with the core network NT.

(A-1-4) Internal Configuration of Management Server 4 FIG. 5 is an internal configuration diagram showing the internal configuration of the management server 4. 5, the management server 4 includes at least a center side interface unit 41, a user side state event analysis unit 42, a user side state data management unit 43, a user side state data acquisition unit 44, and a user side state data storage unit 45.

  The center-side interface unit 41 is an interface unit that exchanges information with the center-side device 3.

  The user-side state event analysis unit 42 analyzes the contents of the state event signal received from the center-side device 3 and gives the analysis result to the user-side state data management unit 43.

  The user-side state data management unit 43 receives the analysis result of the state event signal from the user-side state event analysis unit 42, and manages the connection state of the user-side subscriber device 1 based on the analysis result.

  When receiving the UI status enable event, the user side state data management unit 43 instructs the user side state data acquisition unit 44 to acquire the MAC learning table managed by the subscriber side device 1 specified by the event. To do. When the MAC learning table of the subscriber side device 1 is acquired by the user side state data acquisition unit 44, the user side state data management unit 43 stores the MAC learning table of the subscriber side device 1 in the user side state data storage. Store in the unit 45.

  Further, when receiving the UI status disable event, the user side status data management unit 43 deletes the MAC address of the network device for the subscriber side device 1 instructed by the UI status disable event.

  Further, when receiving the UI status clear event, the user side state data management unit 43 deletes the MAC addresses of the subscriber side device 1 and the network device designated by the UI status clear event.

  The user side status data acquisition unit 44 receives an instruction from the user side status management unit 43 and acquires the MAC learning table of the instructed subscriber side device 1 through the center side device 3.

  The user-side state data storage unit 45 is a storage area that stores the connection state of the subscriber-side device 1 installed on the user side under the control of the user-side state data management unit 43.

(A-2) Operation of Embodiment Next, the operation of the process in which the center side manages the connection state of the subscriber side device 1 in the communication system 10 of this embodiment will be described with reference to the drawings.

  Below, the case where the network apparatus connected to the subscriber side apparatus 1 is VoIP-TA2 is illustrated.

(A-2-1) Registration processing of subscriber side device 1 and VoIP-TA2 FIG. 6 is an explanatory diagram for explaining processing in which the management server 4 registers the MAC addresses of the subscriber side device 1 and VoIP-TA2. .

  First, on the user side, the VoIP-TA 2 is connected to the connection port of the user side interface unit 11 of the subscriber side device 1 (step S101).

  In the subscriber side device 1, when the VoIP-TA 2 is connected and the connection port is linked up, the link state notification unit 14 uses a UI-LINK up indicating the link up of the connection port as a signal indicating the link state. 3 is notified (step S102).

  At this time, the UI-LINK up from the link state notification unit 14 is converted into an optical signal by the optical-electric conversion unit 15 and notified to the center side device 3 through the center side interface unit 16.

  Here, in the subscriber side device 1, when the VoIP-TA2 is connected to the user side interface unit 11 and the port is linked up, a communication frame flows from the VoIP-TA2. In the subscriber side device 1, the MAC address management unit 13 manages the MAC address and port number of VoIP-TA2 included in the communication frame in association with each other. Thereby, in the subscriber side apparatus 1, the MAC address of VoIP-TA2 to connect can be learned. The UI-LINK up includes at least the MAC address of the subscriber side device 1.

  In the center side device 3, a signal indicating a link state is given from the subscriber side device 1. At this time, a signal from the subscriber side device 1 is input via the subscriber interface unit 31, converted into an electrical signal by the optical-electrical conversion unit 32, and given to the transfer processing unit 33. When the transfer processing unit 33 analyzes the received signal and determines that it is a signal indicating the link state of the subscriber side apparatus 1, the transfer processing unit 33 provides the signal to the user side state monitoring unit 34.

  The user-side state monitoring unit 34 receives a signal indicating the link state from the transfer processing unit 33 and detects that the signal is UI-LINK up. The user-side state event notifying unit 35 notifies the management server 4 of a UI status enable event as a state event signal when the UI-LINK up is detected (step S103).

  Here, FIG. 7 is an explanatory diagram for explaining a format example of the state event signal. In FIG. 7, the state event signal has at least “TRAP-ID”, “time”, “SysName”, “IF number”, “ONU number”, “ONU-MAC”, and “status”.

  “TRAP-ID” is identification information indicating a status event signal (UI status event). For example, a number such as “1.3.6.1.4.1.666.90.14.1.0.52” can be used. “Time” indicates the occurrence time of the state. “SysName” indicates a system name to which the center side device 3 belongs.

  The “IF number” is an interface number to which the center side device 3 connects the subscriber side device 1. The “ONU number” is an identification number indicating the subscriber side device. “ONU-MAC” is the MAC address of the subscriber apparatus 1.

  “Status” indicates an event state. For example, a UI status enable event, a UI status disable event, and a UI status clear event are shown. In this case, “status” describes that the event is a UI status enable event.

  When the management server 4 receives the state event signal from the center side device 3, the user side state event analysis unit 42 analyzes the contents of the state event signal and gives the analysis result to the user side state data management unit 43.

  When the user-side state data management unit 43 determines that the event is a UI status enable event, the user-side state data acquisition unit 44 executes a MAC learning read command, and the user-side state data acquisition unit 44 manages the MAC address learning managed by the subscriber-side device 1. Instructs to get the contents of the table.

  In response to this, the user side state data acquisition unit 44 acquires the MAC learning table of the subscriber side device 1 through the center side device 3 (step S104).

  Various methods can be applied to the MAC learning table acquisition method of the subscriber side apparatus 1. For example, the user-side state data acquisition unit 44 transmits a MAC learning table acquisition request whose destination is the ONU-MAC included in the UI status enable event. The MAC learning table acquisition request is given to the subscriber apparatus 1 via the center apparatus 3. Upon receiving the MAC learning table acquisition request, the subscriber side device 1 transmits data including the contents of the MAC learning table managed by the own device 1 to the center side device 3. The center side device 3 transmits data including the contents of the MAC learning table from the subscriber side device 1 to the management server 4. In this way, the contents of the MAC learning table of the subscriber side device 1 can be acquired.

  The user-side state data management unit 43 receives information indicating the connection state of the subscriber-side device 1 based on data including the contents of the MAC learning table of the subscriber-side device 1 from the user-side state data acquisition unit 44 on the user side. It memorize | stores in the state data storage part 45 (step S105). Thereby, the MAC address of the subscriber apparatus 1 and the MAC address of the VoIP-TA 2 connected thereto can be managed in association with each other, and the position of the device connected to the subscriber apparatus 1 can be recognized.

  For example, as illustrated in FIG. 6, the user-side state data management unit 43 acquires “IF number”, “ONU number”, “ONU-MAC”, and “TA-MAC” based on the received data. These are stored in the user side state data storage unit 45 in association with each other.

  The user-side state data storage unit 45 illustrated in FIG. 6 has the “IF number: 1” connected to the subscriber-side device 1 by the center-side device 3 and the subscriber-side device 1 having “ONU number: 1”. The MAC address of the subscriber side device 1 is “ONU-MAC: AAA”, and the MAC address of the device connected to this is managed as “TA-MAC: BBB”.

  In the above description of the operation, it is assumed that the center side device 3 does not receive a UI-LINK up notification even though the UI status Enable event has been UI-LINK up.

  Therefore, the center side device 3 may notify the UNI status enable event at an opportunity other than recovery from the UI-LINK up or UI-LINK down, for example, notify the UNI status enable event at the following timing. You may make it do.

(1) D-ONU UNI-LINK up (2) D-ONU registration (3) D-ONU exchange (4) D-ONU unblocking (5) D-ONU LOOP2 test end (6) PON-LINK up (7 ) Dying Gasp Recovery (A-2-2) VoIP-TA2 Registration Cancellation FIG. 8 is an explanatory diagram for explaining processing for canceling the registration of the MAC address of VoIP-TA2 connected to the subscriber apparatus 1 by the management server 4 It is.

  On the user side, the VoIP-TA 2 is removed from the user side interface unit 11 of the subscriber side device 1 (step S201).

  When the VoIP-TA 2 is removed in the subscriber side apparatus 1 and the connection port is linked down, the link state notification unit 14 sets the UI-LINK down indicating the link down of the connection port as a signal indicating the link state. 3 is notified (step S202).

  When the center side device 3 receives a signal indicating the link state from the subscriber side device 1, the user side state monitoring unit 34 detects that the UI-LINK is down. The user-side state event notifying unit 35 notifies the management server 4 of a UI status Disable event as a state event signal when the UI-LINK down is detected (step S203). In the case of the format illustrated in FIG. 7, the UI status disable event is described as “UI status disable event” in “status”.

  In the management server 4, the state event signal received by the user side state event analysis unit 42 is analyzed. When the user-side state data management unit 43 determines that the event is a UI status Disable event, the user-side state data storage unit 45 cancels registration of the MAC address of the VoIP-TA 2 connected to the subscriber-side device 1 from the user-side state data storage unit 45. (Step S204).

  For example, the user-side state data management unit 43 sends data corresponding to “IF number”, “ONU number”, and “ONU-MAC address” included in the received UI status disable event from the user-side state data storage unit 45. Search for. Then, the user-side state data management unit 43 deletes “VoIP-TA MAC” from the retrieved data (for example, “NULL”).

  As a result, the management server 4 cancels the registration of the MAC address of the VoIP-TA 2 under the subscriber side device 1 while holding the MAC address of the subscriber side device 1 connected to the center side device 3. That is, the management server 4 can manage the removal of the VoIP-TA 2 connected to the subscriber side device 1 by receiving the UI status Disable event.

  It is assumed that the UNI-LINK down notification is not sent to the center side device 3 even though the subscriber side device 1 and VoIP-TA 2 are not connected.

  Therefore, the center side device 3 may notify the UNI status disable event even when the event is other than the UNl-LINK down. For example, the center side device 3 may notify the UNl status disable event when triggered as follows. .

1. D-ONU UNI-LINK Down 2. PON-LINK down 3. Dying Gasp generation4. OLT IF section Reset 5. Removal of OLT IF section 6. OLT IF section fixed failure (A-2-3) Deregistration of subscriber side device 1 and VoIP-TA2 FIG. 9 is a process in which the management server 4 deregisters the MAC addresses of the subscriber side device 1 and VoIP-TA2. It is explanatory drawing explaining these.

  For example, when deleting or exchanging the registration of the subscriber side device 1, the MAC address of the subscriber side device 1 held in the user side state data storage unit 45 of the management server 4 may be changed. Therefore, in such a case, it is necessary to clear the MAC addresses of the subscriber side device 1 and the VoIP-TA 2 held in the user side state data storage unit 45.

  The center side device 3 receives a registration deletion instruction of the subscriber side device 1, an exchange instruction or blockage setting of the subscriber side device 1 through a device (for example, a system management device or the like) not shown (step S301), or When a network disconnection (for example, PON disconnection) with the subscriber side device 1 is detected (step S302), the user side state event notifying unit 35 notifies the management server 4 of a UI status clear event ( Step S303).

  In the case of the format illustrated in FIG. 7, the UI status clear event is “ONU-MAC: NULL”, and “Status” describes that the UI status clear event is a UI status clear event.

  In the management server 4, the state event signal received by the user side state event analysis unit 42 is analyzed. When the user-side state data management unit 43 determines that the event is a UI status clear event, the user-side state data storage unit 45 cancels registration of the MAC addresses of the subscriber-side device 1 and the VoIP-TA 2 (step S304).

  For example, the user-side state data management unit 43 searches the user-side state data storage unit 45 for data corresponding to “IF number” and “ONU number” included in the received UI status clear event. Then, the user-side state data management unit 43 deletes “ONU-MAC” and “VoIP-TA MAC” from the retrieved data (for example, “NULL”).

  As a result, the management server 4 cancels the registration of the MAC address of the subscriber side device 1 connected to the center side device 3 and the VoIP-TA 2 under this control. That is, the management server 4 can clear the registration of the subscriber side device 1 and the VoIP-TA 2 by receiving the UI status clear event.

(A-3) Effects of the Embodiment As described above, according to this embodiment, the subscriber-side device displays the unique identification information of the subordinate network device without changing the current system significantly. Since the management server can manage this, the management server can specify the position of the network device.

  Thereby, even if a user uses VoIP-TA in another area, for example, it can receive provision of 0AB-J telephone service.

  That is, for example, it is assumed that subscriber-side devices connected to the same center-side device are arranged in Yokohama, Tokyo,. In this case, it is assumed that the VoIP-TA used by the user in Yokohama is connected to the subscriber side device in Tokyo and used. Conventionally, since the center side does not manage the connection state of the subscriber side device, even if the subscriber side device is changed, the change cannot be recognized and the service is provided in the state before the movement. However, according to this embodiment, the management server can specify the position of the device connected to the subscriber side device. For example, the management server can recognize the connection and removal of the network device to be connected, and can also manage the telephone number each time, so that the 0AB to J telephone services can be provided correctly.

(B) Other Embodiments (B-1) In the above-described embodiments, the present invention can specify the position of the network device connected to the subscriber side apparatus on the center side, so that the 0AB to J telephone service system can be used. The case where the present invention is applied has been described by way of example. However, the present invention can be widely applied to systems other than the 0AB to J telephone service system. For example, the present invention can also be applied to a system for specifying the position of a malicious terminal (for example, undesired data is dropped on a network by a PC infected with a virus).

(B-2) Various processes in the subscriber apparatus, the center apparatus, and the management server described in the above embodiment can be realized by so-called software processes. For example, the hardware configuration of the subscriber side device, center side device, and management server is configured with a CPU, RAM, ROM, EEPROM, etc., and the CPU reads the processing program stored in the ROM and is necessary for processing This can be realized by executing a processing program using various data.

DESCRIPTION OF SYMBOLS 1 ... Subscriber side apparatus, 11 ... User side interface part, 12 ... Transfer process part,
13 ... MAC address management unit, 14 ... link state notification unit, 15 ... optical-electrical conversion unit,
16: Center side interface section,
3 ... Center side device, 31 ... Subscriber side interface unit, 32 ... Opto-electric conversion unit,
33 ... Transfer processing unit, 34 ... User-side state monitoring unit, 35 ... User-side state event notification unit,
36 ... Server side interface unit, 37 ... NT side interface unit,
4 ... management server, 41 ... center side interface unit, 42 ... user side state event analysis unit,
43 ... user-side state data acquisition unit, 44 ... user-side state data management unit,
45. User side state data storage unit,
2 ... VoIP-TA, 5 ... multiplexer / demultiplexer, 6 ... IP telephone, 10 ... communication system.

Claims (8)

In a management system comprising a center side device and one or a plurality of subscriber side devices connected to the center side device and managing terminals existing under each of the subscriber side devices,
State storage means for storing a connection state under control of each of the subscriber side devices;
A management unit that is connected to the center side device, and that manages a connection state under each of the subscriber side devices by the state storage unit;
Link status notifying means for notifying a link status signal indicating the link status of the terminal connected to the interface means of each subscriber side device;
Based on the link status signal from the link status notification means, status monitoring means for monitoring the link status of the terminal connected to each subscriber side device;
A state event signal notifying unit for notifying the management unit of a state event signal corresponding to the predetermined state upon the detection of the predetermined state by the state monitoring unit;
The management means manages the unique identification information of the terminal connected to the subscriber side device for each subscriber side device in response to the status event signal from the status event signal notification means. Management system featuring. The status event signal notifying means, when the status monitoring means detects a link up of the interface means of each subscriber side device, notifies an event signal for causing the management means to manage the connection status of the subscriber side device. ,
The management means acquires the unique identification information of the subscriber side device and the unique identification information of the terminal connected to the subscriber side device from the subscriber side device, and the unique identification information of the subscriber side device The management system according to claim 1, wherein the unique identification information of the terminal is associated with and stored in the state storage unit.   In response to a request from the management means, each of the subscriber side devices sends information contained in a management table for managing the unique identification information of the terminal connected to the interface means of the subscriber side device via the center side device. The management system according to claim 2, wherein the management system is provided to the management means. The state event signal notification means, when the state monitoring means detects a link down of the interface means of each subscriber side device, sends an event signal for canceling registration of the terminal connected to the subscriber side device. Notify
The management system according to any one of claims 1 to 3, wherein the management unit cancels registration of the terminal associated with the subscriber-side device stored in the state storage unit. A system management means for managing a connection state between the center side device and each subscriber side device or installation of each subscriber side device;
The state event signal notifying means sends an event signal for canceling registration of the subscriber side apparatus and the terminal when the state monitoring means notifies the system management means of a signal indicating the disconnection of each subscriber side apparatus. Notify
The management system according to any one of claims 1 to 4, wherein the management unit cancels registration of the subscriber side device and the terminal stored in the state storage unit. A management system comprising a center side device and one or a plurality of subscriber side devices connected to the center side device, and managing a state of a terminal existing under each of the subscriber side devices by a management means is configured. In the center side device,
A state in which the link state of the terminal connected to each subscriber side device is monitored based on a link state signal indicating the link state of each subscriber side device from the link state notification means provided in each subscriber side device Monitoring means;
A center-side apparatus comprising: a state event signal notifying unit that notifies the management unit of a state event signal corresponding to the predetermined state upon detection of a predetermined state by the state monitoring unit. Management means for connecting a center-side device and one or more subscriber-side devices connected to the center-side device, and connecting a state of a terminal existing under each subscriber-side device to the center-side device. In the subscriber side device constituting the management system to be managed,
Interface means for connecting to the terminal;
Unique identification information managing means for managing unique identification information of the terminal connected to the interface means;
Link status notifying means for notifying a link status signal indicating the link status of the terminal connected to the interface means,
In response to a request from the management means, the unique identification information management means sends the information contained in the management table for managing the unique identification information of the terminal connected to its own interface means via the center side device. A subscriber-side device, which is provided to the management means. In a management device comprising a center side device and one or a plurality of subscriber side devices connected to the center side device, for managing a terminal existing under each of the subscriber side devices,
State storage means for storing a connection state under control of each of the subscriber side devices;
A management unit that is connected to the center side device, and that manages the connection state under the control of each of the subscriber side devices by the state storage unit;
When the link state of the terminal connected to the subscriber-side device is a predetermined state, the management means responds to the state event signal received from the state event signal notification means of the center-side device according to the state event signal. A management apparatus for managing the unique identification information of the terminal connected to a subscriber side apparatus for each subscriber side apparatus.

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