JP2007208703A - Wireless access device, monitor controller and monitor-control system for the wireless access device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To realize a wireless network system capable of simplifying a wireless access device, without the need for previously registering the information of the wireless access device to be monitored. <P>SOLUTION: The wireless access device has a Port matrix, indicating the information of an adjacent wireless access device under a connected state, and a Port-matrix updating processor, updating the Port matrix when the adjacent wireless access device is changed under connected state. The radio access device, further, has a state-change information informing a monitor controller of the updating of the Port matrix, when the Port matrix is updated. The wireless access device connecting an object to be monitored via a cable Port and the adjacent wireless access device connected to the wireless access device are used as the monitor controller. The monitor controller has a monitor-object list, indicating the informations of the wireless access device and the adjacent wireless access device, and a monitor-status decision processor, updating the monitor-object list according to the information from the state-change information section. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a system including a plurality of wireless access devices and a monitoring control device that manages the state of each wireless access device.

  In general, SNMP (Simple Network Management Protocol) protocol is used for monitoring control of network devices, and the monitored control device defines an MIB (Management Information) defined by the monitored control device developer as an information source shared with the monitoring control device. A monitoring control database called Base).

  The means for the monitoring control device to obtain the MIB information of the monitored control device corresponds to the monitored control device by transmitting a MIB information acquisition request called “GET” to the monitored control device. A means for obtaining the required MIB information by returning a “GET RESPONSE” storing item information, which is called “TRAP”, is sent from the monitored control apparatus to the monitoring control apparatus at the timing when the state changes. On the other hand, there are two types of means for the monitoring and control device to obtain information by a notification transmitted unilaterally.

  Moreover, there is a system described in Patent Document 1 (Japanese Patent Laid-Open No. 2000-281084) as network device monitoring control in a wireless network system.

The system disclosed in Japanese Patent Laid-Open No. 2004-228561 is an acquisition means for periodically obtaining information on PE routers and information on CE routers in a VPN (Virtual Private Network) service using the MPLS (Multi Protocol Label Switching) method. Creating means for creating, for each PE router, monitoring target information used for monitoring the CE router by associating the information relating to the PE router and the information relating to the CE router, and management means for registering and managing the created monitoring target information And a monitoring means for monitoring the activation state of the CE router via the PE router based on the registered monitoring target information is disclosed.
JP 2000-281084 A

  In the wireless network system disclosed in Patent Document 1, the information about the E router and the information about the CE router are periodically obtained, and the CE router is monitored by associating the obtained information about the PE router with the information about the CE router. There is a problem that the apparatus configuration is enlarged because the monitoring target information used in the process is created for each PE router and is registered and managed by the management means.

  The present invention has been made in view of the problems of the prior art as described above, and it is not necessary for the supervisory control device to register information on the wireless access device to be monitored in advance, thus simplifying the device. An object of the present invention is to realize a wireless network system.

The wireless access device monitoring control system of the present invention includes a monitoring control device,
A wireless access device comprising at least one wireless port and one or more wired ports, and connected to the monitoring control device via the wired ports;
The wireless access device and an adjacent wireless access device connected via the wireless port or wired port,
The wireless access device is:
Port matrix indicating information of the adjacent wireless access device in a connected state;
A Port matrix update processing unit for updating the Port matrix when there is a change in the adjacent wireless access device in a connected state;
A state change notification unit for notifying the monitoring and control device when the Port matrix is updated;
The monitoring control device, the monitoring target as the wireless access device connected via the wired Port and the adjacent wireless access device connected to the wireless access device, a monitoring target list indicating these information,
A monitoring status determination processing unit that updates the monitoring target list in response to a notification from the state change notification unit.

The monitoring and control apparatus according to the present invention includes at least one wireless port and one or more wired ports, and includes a port matrix indicating information of an adjacent wireless access device in a connected state, and the adjacent wireless access device in a connected state. A port matrix update processing unit that updates the port matrix when the port matrix is changed, and a state change notification unit that outputs a notification to that effect to the monitoring control device when the port matrix is updated. A monitoring control device that constitutes a wireless access device monitoring control system together with a wireless access device,
The monitoring target is the wireless access device connected via the wired port and the adjacent wireless access device connected to the wireless access device, and a monitoring target list indicating these pieces of information,
A monitoring status determination processing unit that updates the monitoring target list in response to a notification from the state change notification unit.

In any of the above, the monitoring control device
Upon receiving a notification that the port matrix has been updated from the state change notification unit, the port matrix is acquired from the port matrix update processing unit, and information on new neighboring wireless access devices not registered in the monitoring target list is included. If there is, the monitoring target list may be updated with a new adjacent wireless access device as a monitoring target.

  In addition, upon receiving a notification that the port matrix has been updated from the state change notification unit, the port matrix is acquired from the port matrix update processing unit, and information on adjacent wireless access devices registered in the monitoring target list is included. If not, the monitoring target list may be updated by removing the adjacent wireless access device from the monitoring target.

A wireless access device of the present invention is a wireless access device that constitutes a wireless access device monitoring control system together with a monitoring control device,
Comprising at least one wireless port and at least one wired port, connected to the monitoring control device via the wired port;
Port matrix indicating information of the adjacent wireless access device in a connected state;
A Port matrix update processing unit for updating the Port matrix when there is a change in the adjacent wireless access device in a connected state;
A state change notifying unit for notifying the monitoring and control apparatus when the Port matrix is updated.

  In the present invention, when the supervisory control device monitors and controls the wireless access device, some kind of supervisory control protocol in the application layer is used, the wireless access device has a supervisory control database corresponding to the MIB of SNMP, and “TRAP” It is assumed that the state change notifying means corresponding to can be transmitted to the monitoring control device.

  The first effect of the above configuration is that the wireless access device has information of adjacent wireless access devices as a Port matrix, so that the monitoring control device does not register connection configuration information of the wireless access device group to be monitored in advance. However, it becomes possible to have connection configuration information, and the apparatus can be miniaturized.

  In the present invention, since there is at least one wireless port and one or more wired ports, the connection configuration of the wireless access device group is complicated, but each wireless access device has a wireless access device adjacent as a port matrix. By having the connection configuration, the supervisory control device can obtain the port matrix from all the radio access devices, thereby knowing the connection configuration of all the radio access device groups.

  The second effect is that, with regard to the Port matrix of the above-described wireless access device, the wireless access device having the Port matrix that has changed at the time when the information of the adjacent wireless access device has changed is changed from the wireless access device to the supervisory control device. By having a function to notify automatically, it becomes possible for the supervisory control device to automatically recognize the radio access device that should be under supervisory control.

  Next, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a diagram showing a configuration of a wireless access device monitoring control system according to the present invention.

  The system illustrated in FIG. 1 includes a monitoring control device 10 that performs monitoring control of a wireless access device, and six wireless access devices 11 to 16 that are monitoring targets. The supervisory control device 10 and the leading wireless access device 11 exist on the same wired network 101, and the wireless access device 11 is installed in the station building 121.

  The wireless access device 12 installed in the station building 122 forms a wireless network 111 with the wireless access device 11, and forms a wireless network 112 with the wireless access device 13.

  The wireless access device 13 and the wireless access device 14 that form the wired network 102 are both installed in the station building 123.

  The wireless access device 14 forms a wireless network 113 with the wireless access device 15, and forms a wireless network 114 with the wireless access device 16. The wireless access device 15 is installed in the office building 124, and the wireless access device 16 is installed in the office building 125.

  The office buildings 121, 122, 123, 124, and 125 are installed so as to have a certain distance from each other.

  The wireless access device targeted by the present invention is monitored and controlled by the monitoring control device 10 via another wireless access device and a wired network / wireless network that exist with the monitoring control device 10.

  The relationship between the monitoring control device and the wireless access device will be described below with reference to FIGS.

  FIG. 2 is an example of a protocol stack showing a state of communication between the monitoring control device 21 (the monitoring control device 10 in FIG. 1) and the wireless access devices 22 to 24 (the wireless access device 11 in FIG. 1) to be monitored and controlled. .

  In FIG. 2, the monitoring control device 21 includes a data link layer 2110 having a wired interface such as Ethernet and PPP, a network layer 2120, a transport layer 2130, and an application layer 2140 including a control protocol such as SNMP.

  Since the wireless access devices 22, 23, and 24 are wireless access devices having the wired interfaces 2211, 2313, and 2413 and a plurality of wireless ports in the data link layer, the wireless interfaces 2212 and 2213, 2311 and 2312, and 2411 and 2412 are each two. The network layer 2220, 2320, 2420, the transport layer 2230, 2330, 2430, and the application layer 2240, 2340, 2440.

  When the wired communication 211 between the wired interfaces 2110 and 2211 is started between the monitoring control device 21 and the wireless access device 22, and the communication 221 in the network layer and the communication 231 in the transport layer are possible, the monitoring control device 21 is SNMP or the like. The wireless access device 22 is monitored and controlled using the communication 241 based on the monitoring control protocol.

  In addition, when the wireless communication 212 between the wireless interfaces 2212 and 2311 is started between the wireless access device 22 and the wireless access device 23, the monitoring control device 21 transmits the wireless access device via the wired communication 211 and the wireless communication 212. 23 monitoring control is performed.

  Further, when the wireless communication 213 between the wireless interfaces 2213 and 2411 is started between the wireless access device 22 and the wireless access device 24, the monitoring control device 21 transmits the wireless access device 24 via the wired communication 211 and the wireless communication 213. Monitoring control is performed.

  When the wireless access devices are connected by wired communication like the wireless access devices 13 and 14 in FIG. 1, the wired interface 2313 or 2413 of the wireless access device 23 or 24 and the wired interface of the new wireless access device By starting communication, monitoring control from the monitoring control device 21 becomes possible.

  Next, the function of dynamically notifying the monitoring control device of information on adjacent wireless access devices without registering the connection configuration information of the wireless access device group to be monitored in advance in the monitoring control device An example of the internal configuration for having the above will be described with reference to FIGS. 3A and 3B.

  In the present invention, since a wireless access device having at least one wireless port and one or more wired ports is a monitoring control target, a total of 3 is provided as shown in the Port matrix 311 of FIG. 3B (a). It is shown as a wireless access device having more than one Port. Although the ratio between the wireless port and the wired port is not mentioned, it is assumed that the wireless port has at least one wireless port and at least one wired port.

  The radio access device 31 (the radio access device 11 in FIG. 1 and the radio access devices 22 to 24 in FIG. 2) holds information of adjacent radio access devices as a port matrix 311, and when the port matrix 311 has a state change The port matrix update processing unit 313 updates the port matrix 311 and the state change notification unit 312 notifies the monitoring control device 32 (the monitoring control device 10 in FIG. 1 and the monitoring control device 21 in FIG. 2) of the state change. To do.

  When the wireless access device 31 receives a port matrix acquisition request from the monitoring control device 32, the transmission / reception unit 314 receives the request and transmits data of the port matrix 311 from the transmission / reception unit 314.

  When there is a disconnection request from the supervisory control device 32 to the adjacent wireless access device, the wireless access device 31 receives the request at the transmission / reception unit 314, and the port matrix update processing unit 313 receives the data link layer with the adjacent wireless access device. The connection disconnection process is performed at, and the Port matrix 311 is updated.

  As shown in FIG. 3B (a), the Port matrix 311 includes a “Port number” column 3111 and an “adjacent wireless access device IP address” column 3112 that holds information of each port and the communication partner established in the data link layer. It consists of the number of Ports that the wireless access device has.

  When communication in the data link layer is established, the “adjacent wireless access device IP address” column 3112 stores the IP address information of the partner with which communication has been established. If there is no port communication partner, “0.0. An initial value such as 0.0 "is set.

  The monitoring control device 32 has a monitoring target list 321 created based on the Port matrix acquired from the wireless access device as management information for the wireless access device that is the monitoring control target.

  When the supervisory control device 32 receives from the wireless access device a notification indicating that a state change has occurred in the Port matrix, the state change notification processing unit 322 receives and transmits the Port matrix information of the wireless access device. A Port matrix acquisition request is transmitted from the unit 324.

  When the monitoring control device 32 receives the Port matrix acquisition request result from the wireless access device 31 from the transmission / reception unit 324, the Port matrix acquisition request result is passed to the monitoring target determination processing unit 323. The monitoring target determination processing unit 323 determines whether the content indicated by the Port matrix acquisition request result indicates that the adjacent state of the wireless access device is appropriate, and updates the monitoring target list 321 if there is no problem. When there is a problem, the transmission / reception unit 324 transmits a disconnection request for the adjacent wireless access device to the wireless access device.

  Note that the wireless access device 31 and the monitoring control device 32 are configured by a general computer system including an input / output device, a storage device, and a control device, and the Port matrix 311 and the monitoring target list 321 are stored in the storage device. The The state change notification unit 312, the Port matrix update processing unit 313, the monitoring target determination processing unit 323, and the state change notification processing unit 322 are configured by a control unit, and the transmission / reception units 314 and 324 and the links illustrated in FIG. Composed.

  As shown in FIG. 3B (b), the monitoring target list 321 includes a “monitoring target wireless access device” column 3211 indicating an IP address of a wireless access device currently under monitoring and a wireless access device under monitoring target. It consists of an “adjacent wireless access device IP address” column 3212 that holds information about a communication partner of a wireless port or a wired port.

  The “adjacent wireless access device IP address” column 3212 has as many Ports as the wireless access device has. The “neighboring wireless access device IP address” column 3212 stores the IP address information of the partner with which communication with the Port has been established. If there is no Port communication partner, an initial value such as “0.0.0.0” is stored. Set the value.

  A row is dynamically deleted / added to the monitoring target list 321 based on the determination result of the monitoring target determination processing unit 323.

  Next, the operation of this embodiment will be described.

  The wireless access device monitoring control system of the present embodiment has a function of dynamically notifying the monitoring control device of information on wireless access devices adjacent to the wireless access device. For this reason, it is possible to automatically recognize all wireless access devices that the monitoring control device should be under supervisory control without registering connection configuration information of the wireless access device group to be monitored in advance in the monitoring control device. . This operation will be described in detail below.

  4A and 5A are flowcharts showing the operation of this embodiment.

  4A shows a state in which the monitoring control device 41 (the monitoring control device 10 in FIG. 1, the monitoring control device 21 in FIG. 2, the monitoring control device 31 in FIG. 3A) has started monitoring control of an arbitrary group of wireless access devices. The operation when a new wireless access device is added will be described.

  In FIG. 5A, the monitoring control device 51 (the monitoring control device 10 in FIG. 1, the monitoring control device 21 in FIG. 2, the monitoring control device 31 in FIG. 3A, and the monitoring control device 41 in FIG. 4A) An operation when a certain wireless access device is deleted in a state where monitoring control is started is shown.

  4 shows a supervisory control device 41, a wireless access device 42 already under supervisory control (wireless access device 11 in FIG. 1, wireless access devices 22 to 24 in FIG. 2, wireless access device 31 in FIG. 3A), and wireless access device 42. And a new wireless access device 43 to be connected via a wired or wireless interface.

  The wireless access devices 42 and 43 have PortX and Y that are the same interface at least in a wired or wireless manner.

  The wireless access device 42 uses PortX and the wireless access device 43 uses PortY to connect between wireless access devices. The IP address of the wireless access device 42 is ipAdd-001, and the IP address of the wireless access device 43 is ipAdd-002. And

  As shown in FIG. 4B (a), since the wireless access device 42 is already under monitoring control, the monitoring target list 411 of the monitoring control device 41 includes “ipAdd-001” in the “monitoring target wireless access device” column. “, There is a row 4111 having information of“ 0.0.0.0 ”in the“ adjacent wireless access device IP address / PortX ”column.

  The “adjacent wireless access device IP address / PortY” column is “0.0.0.0” if PortY is not used, and the IP address information of the wireless access device is connected to another wireless access device. Stored.

  The operation of this embodiment will be specifically described with reference to FIG. 4A.

  When the connection in the data link layer between PortX of the wireless access device 42 and PortY of the wireless access device 43 is started <S4001>, the IP address information of the wireless access device 43 is entered in the PortX column of the Port matrix of the wireless access device 42. Is registered <S4002>, the wireless access device 42 notifies the monitoring control device 41 of the state change from the state change notification unit <S4003>.

  When the monitoring control device 41 receives from the wireless access device 42 a notification indicating that the state of the port matrix has changed by the state change notification processing unit 322 (see FIG. 3A), the monitoring control device 41 obtains information on the port matrix that the wireless access device 42 has. In order to acquire, a Port matrix acquisition request is transmitted from the transmission / reception unit 324 (see FIG. 3A) to the wireless access device 42 <S4004>.

  Upon receiving the Port matrix acquisition request from the supervisory control device 41, the wireless access device 42 transmits the Port matrix data from the transmission / reception unit 314 (see FIG. 3A) <S4005>.

  In the Port matrix 421 transmitted in <S4005>, as shown in FIG. 4B (c), information of “PortX” in the “Port number” column and “ipAdd-002” in the “neighboring wireless access device IP address” column are stored. There is a row 4211 with it. For “PortY” “adjacent wireless access device IP address”, if PortY is not used, “0.0.0.0”, and if connected to another wireless access device, the IP address of the wireless access device Information is stored.

  Upon reception of the Port matrix acquisition request result from the transmission / reception unit 324 from the wireless access device 42, the monitoring control device 41 passes the Port matrix acquisition request result to the monitoring target determination processing unit 323 (see FIG. 3A) and is adjacent to the wireless access device 42. It is determined whether the wireless access device 43 is a device that should belong to the supervisory control <S4006>.

  In <S4006>, when the IP address not registered in the monitoring target list of the monitoring control device is included in the “connected wireless access device IP address” of the Port matrix newly acquired by the monitoring control device, the monitoring control device Determines that the wireless access device having the IP address should belong to the supervisory control.

  If the result of determination in <S4006> is that the device should belong to monitoring control, the monitoring control device 41 transmits a connection confirmation to the wireless access device 43 <S4007>.

  When the wireless access device 43 receives the connection confirmation from the monitoring control device 41, it returns a connection request as a connection confirmation result to the monitoring control device 41 <S4008>.

  When the monitoring control device 41 receives a connection request as a connection confirmation result from the wireless access device 43, the information on the wireless access device 43 is displayed in the monitoring target list 411 (see FIG. 4B) that manages the information on the wireless access devices under the monitoring target. Is transmitted to the wireless access device 43 <S4009>.

  When receiving the Port matrix acquisition request from the supervisory control device 41, the wireless access device 43 transmits data of the Port matrix from the transmission / reception unit <S4010>.

  As shown in FIG. 4B, the Port matrix 431 transmitted in <S4010> has a row 4311 having information “PortY” in the “Port number” column and “ipAdd-001” in the “adjacent wireless access device IP address” column, as shown in FIG. Exists. As for “PortX” “adjacent wireless access device IP address”, if PortX is not used, “0.0.0.0”, and if connected to another wireless access device, the IP address of the wireless access device Information is stored.

  When the monitoring control device 41 receives the Port matrix acquisition request result 431 from the wireless access device 43 from the transmission / reception unit, the monitoring control device 41 adds a new monitoring target list 412 in which the information of the Port matrix 431 is added to the monitoring target list 411 (FIG. 4B). The monitoring control device 41 automatically recognizes the wireless access device 43 via the adjacent wireless access device 42 even if the information of the wireless access device 43 is not registered in advance. Thus, it becomes possible to add them under supervisory control.

  5A shows a monitoring control device 51 (the monitoring control device 10 in FIG. 1, the monitoring control device 21 in FIG. 2, the monitoring control device 31 in FIG. 3A), and a wireless access device 52 (the wireless access device in FIG. 1) already under monitoring control. 11, wireless access devices 22 to 24 in FIG. 2, wireless access devices 31 in FIG. 3A) and 53 (wireless access devices 12 to 16 in FIG. 1). The wireless access devices 52 and 53 are connected via a wired or wireless interface. Connected.

  The wireless access devices 52 and 53 have PortX and Y which are the same interfaces at least in a wired or wireless manner, the wireless access device 52 performs connection between the wireless access devices using PortX, and the wireless access device 53 uses PortY. Assume that the IP address of the wireless access device 52 is ipAdd-001, and the IP address of the wireless access device 53 is ipAdd-002.

  Since the wireless access devices 52 and 53 are already under monitoring control, the monitoring target list 511 of the monitoring control device 51 has “ipAdd” in the “monitoring target wireless access device” column as shown in FIG. -001 ", the row 5111 having the information" ipAdd-002 "in the" adjacent wireless access device IP address / PortX "column," ipAdd-002 "," adjacent wireless access device IP "in the" monitored wireless access device "column There is a row 5112 having information of “ipAdd-001” in the “Address / PortY” column.

  The “adjacent wireless access device IP address / PortY” column in the row 5111 and the “adjacent wireless access device IP address / PortX” column in the row 5112 are “0.0.0.0” if the corresponding port is not used. If connected to another wireless access device, the IP address information of the wireless access device is stored.

  At the start of this operation, the Port matrix 521 of the wireless access device 52 shown in FIG. 5B (b) has “PortX” in the “Port number” column and “ipAdd-002” in the “Adjacent wireless access device IP address” column. There is a row 5211 having the following information. For “PortY” “adjacent wireless access device IP address”, if PortY is not used, “0.0.0.0”, and if connected to another wireless access device, the IP address of the wireless access device Information is stored.

  When the wireless access device 52 determines that the connection in the data link layer with the wireless access device 53 has been disconnected <S5001>, the wireless access device 52 uses the Port matrix update processing unit shown in FIG. Update "ipAdd-002" in the "adjacent wireless access device IP address / PortX" column of row 5211, which is information of the adjacent wireless access device 53, from the matrix 521 to "0.0.0.0" <S5002>. As a result, since a state change occurs in the Port matrix, the wireless access device 52 notifies the monitoring control device 51 of the state change from the state change notification unit <S5003>.

  When the supervisory control device 51 receives from the wireless access device 52 a notification indicating that the state of the port matrix has changed, the state change notification processing unit receives information on the port matrix of the wireless access device 52. Transmits a Port matrix acquisition request to the wireless access device 52 <S5004>. When the wireless access device 52 receives the Port matrix acquisition request from the monitoring control device 51, the wireless access device 52 transmits data of the Port matrix from the transmission / reception unit <S5005>.

  In the Port matrix 522 shown in FIG. 5B (d) transmitted in <S5005>, “ipAdd-002” in the column 5211 “adjacent wireless access device IP address / PortX” as a result of <S5002> is “ 0.0.0.0 "is stored.

  When the monitoring control device 51 receives the Port matrix acquisition request result 522 from the wireless access device 52 from the transmission / reception unit, the monitoring control device 51 compares the monitoring target list 511 with the Port matrix 522 and selects “monitoring target” corresponding to the wireless access device 52 in the monitoring target list 511. For the row “ipAdd-001” in the “wireless access device” column, it is detected that the “adjacent wireless access device IP address / PortX” column “ipAdd-002” has been changed to “0.0.0.0”.

  The monitoring control device 51 confirms that the information “ipAdd-002” and the row 5112 exist in the “monitoring target wireless access device” column in the monitoring target list 511 <S5006>, and the monitoring target wireless access device = “ipAdd−”. 002 ", that is, a disconnection confirmation request is transmitted to the wireless access device 53 <S5007>. In <S5006>, the “connected wireless access device IP address” registered in the list previously held by the monitoring control device was deleted from the port matrix acquired from the wireless access device with the monitoring control device. At this time, the wireless access device having the IP address is determined to be disconnected.

  If there is no response as a result of the disconnection confirmation, the wireless access device having the IP address is deleted from the monitoring target list.

  If there is a response as a result of disconnection confirmation, the information of the wireless access device with that IP address is left on the monitoring target list. This is because communication with the monitoring control device is possible via the wireless access device.

  In the case of the present embodiment, since the connection in the data link layer between the wireless access devices 52 and 53 is disconnected, there is no response to the disconnection confirmation request <S5007>, and the connection in the application layer with the wireless access device 53 is disconnected. <S5008>.

  If the monitoring control device 51 determines that the communication with the wireless access device 53 has been disconnected, it deletes the row corresponding to the wireless access device 53 from the monitoring target list and creates a new monitoring target list 512 <S5008>. With this operation, the monitoring control device can automatically determine that the wireless access device 53 that is no longer required to be monitored and controlled is excluded from monitoring.

  A specific example of the monitoring target list and the Port matrix accompanying the change of the Port matrix will be described below.

  As shown in FIG. 6, in a state where the monitoring control device NMS and the radio access device AD (IP address: ad) are connected in series, the radio access device BC is disconnected, and the radio access device Port matrix state change notification is sent from B to the supervisory controller NMS.

  FIG. 7 and FIG. 8 respectively show the monitoring target list held by the monitoring control device NMS until the above-described Port matrix state change notification is performed, and the monitoring control device NMS performs wireless communication after the Port matrix state change notification is performed. 6 is a diagram illustrating a Port matrix acquired from an access device B. FIG.

As a result of the comparison between (* 1) in FIG. 7 and (* 2) in FIG. 8, the supervisory control device NMS sets the wireless access device having the IP address “c” as the disconnection target. As a result of the connection confirmation, since there is no response to the IP address “c” in the above configuration, the wireless access device having the IP address “c” is deleted from the monitoring target list, that is, (L3
). In this case, as an actual operation, if B-C is disconnected, not only C but also D is removed from the monitoring target.

  Further, when (L3) is deleted, it is confirmed whether the connected wireless access device IP address included in (L3) is registered in another row. For example, the IP address “b” exists in (L1), but the IP address “d” exists only in (L3). In that case, the wireless access device having the IP address “d” is also determined as the disconnection target ((L3) The order of the confirmation of connection to the IP address “d” is not mentioned, but the disconnection target is included before the deletion. Check if it ’s not.)

  Next, as shown in FIG. 9, a configuration in which the radio access devices A-D are connected in a ring shape will be described.

  The radio access devices BD are disconnected, and the port matrix state change notification is sent from the radio access devices B and D to the monitoring control device NMS.

  In each of FIGS. 10 to 12, the monitoring target list held by the monitoring control device NMS until the above-described Port matrix state change notification is performed, and the monitoring control device NMS performs wireless communication after the Port matrix state change notification is performed. FIG. 10 is a diagram illustrating a Port matrix acquired from the access device B and a Port matrix acquired by the monitoring control device NMS from the radio access device D after a Port matrix state change notification is performed.

As a result of the comparison of the above (* 1) and (* 3) with respect to the Port matrix acquired from the wireless access device B, the monitoring control device NMS sets the wireless access device having the IP address “d” as a disconnection target.

As a result of the connection confirmation, there is a response to the IP address “d” in the case of the above configuration (
In the case of the ring configuration, the wireless access device D can be connected via the wireless access device C), and the wireless access device having the IP address “d”, that is, (L4) is left as it is.

Similarly, in the Port matrix acquired from the wireless access device D, as a result of the comparison between the above (* 2) and (* 4), the wireless access device having the IP address “b” is targeted for disconnection. As a result, there is a response to IP address “b”, so that IP
The wireless access device having the address “b”, that is, (L2) is left as it is.

  In the embodiment described above, an example is shown in which a wireless access device is newly added and a wireless access device is deleted. However, the present invention is also effective for “relocation” of a wireless access device.

  In the monitoring and control system for a wireless access device targeted by the present invention, in actual operation, a wireless access device that has been operating adjacent to a certain wireless access device is temporarily disconnected and reconnected to another wireless access device for use. A case is considered. However, in the conventional technique, it is necessary to update the information of the wireless access device group registered in advance in the monitoring and control device, which may affect the operation of the wireless access device that does not affect the relocation.

  In the present invention, as shown in the operation example of FIG. 5, the wireless access device once disconnected is deleted from the monitoring target list of the monitoring control device. It can be handled in the same way as a completely new wireless access device.

It is a block diagram of the radio | wireless access apparatus monitoring control system in this invention. It is a protocol stack figure of the supervisory control system in the present invention. It is an apparatus block diagram of the monitoring control system in this invention. It is a figure which shows the structure of the Port matrix 311 and the monitoring object list | wrist 321 in FIG. 3A. It is a flowchart which shows operation | movement when the monitoring control apparatus is in the state which started monitoring control of arbitrary radio | wireless access apparatus groups, and a new radio | wireless access apparatus is added. It is a figure which shows the structure of the Port matrix 421 and the monitoring object list | wrist 411 in operation | movement by FIG. 4A. It is a flowchart which shows operation | movement when a certain radio | wireless access apparatus is in the state which the supervisory control apparatus started the supervisory control of arbitrary radio | wireless access apparatus groups. It is a figure which shows the structure of the Port matrix 521 and the monitoring object list | wrist 511 in operation | movement by FIG. 5A. It is a figure which shows the connection state of the monitoring control apparatus NMS and radio | wireless access apparatus AD. It is a figure which shows the monitoring object list | wrist which the monitoring control apparatus NMS hold | maintained before Port matrix state change notification is performed. It is a figure which shows the Port matrix which the monitoring control apparatus NMS acquired from the wireless access apparatus B after Port matrix state change notification was performed. It is a figure which shows the connection state of the monitoring control apparatus NMS and radio | wireless access apparatus AD. It is a figure which shows the monitoring object list | wrist which the monitoring control apparatus NMS hold | maintained before Port matrix state change notification is performed. It is a figure which shows the Port matrix which the monitoring control apparatus NMS acquired from the wireless access apparatus B after Port matrix state change notification was performed. 7 is a diagram illustrating a port matrix acquired from a radio access device D by a monitoring control device NMS after a Port matrix state change notification is performed. FIG.

Explanation of symbols

31 Radio Access Device 32 Monitoring Control Device 311 Port Matrix 312 State Change Notification Unit 313 Port Matrix Update Processing Unit 314 Transmission / Reception Unit 321 Monitoring Target List 322 State Change Notification Processing Unit 323 Monitoring Target Discrimination Processing Unit 324 Transmission / Reception Unit

Claims (7)

A supervisory control device;
A wireless access device comprising at least one wireless port and one or more wired ports, and connected to the monitoring control device via the wired ports;
The wireless access device and an adjacent wireless access device connected via the wireless port or wired port,
The wireless access device is:
Port matrix indicating information of the adjacent wireless access device in a connected state;
A Port matrix update processing unit for updating the Port matrix when there is a change in the adjacent wireless access device in a connected state;
A state change notification unit for notifying the monitoring and control device when the Port matrix is updated;
The monitoring control device, the monitoring target as the wireless access device connected via the wired Port and the adjacent wireless access device connected to the wireless access device, a monitoring target list indicating these information,
A wireless access device monitoring control system comprising: a monitoring status determination processing unit that updates the monitoring target list in response to a notification from the state change notification unit. The wireless access device monitoring control system according to claim 1,
When the monitoring control device receives a notification that the port matrix has been updated from the state change notification unit, the monitoring control device acquires the port matrix from the port matrix update processing unit, and obtains a new neighboring wireless access device that is not registered in the monitoring target list. A radio access device monitoring control system, wherein when the information is included, the monitoring target list is updated with a new adjacent radio access device as a monitoring target. The radio access device monitoring control system according to claim 1 or 2,
When the monitoring control device receives a notification that the port matrix has been updated from the state change notification unit, the monitoring control device acquires the port matrix from the port matrix update processing unit, and the information of the adjacent wireless access devices registered in the monitoring target list is obtained. If not included, the wireless access device monitoring control system is characterized in that the monitoring target list is updated by removing the adjacent wireless access device from the monitoring target. When there is a change in a port matrix including at least one wireless port and one or more wired ports, indicating information of adjacent wireless access devices in a connected state, and the adjacent wireless access device in a connected state, Wireless access device monitoring together with a wireless access device comprising a Port matrix update processing unit for updating a Port matrix and a state change notification unit that outputs a notification to that effect to the monitoring control device when the Port matrix is updated A monitoring control device constituting a control system,
The monitoring target is the wireless access device connected via the wired port and the adjacent wireless access device connected to the wireless access device, and a monitoring target list indicating these pieces of information,
A monitoring control apparatus comprising: a monitoring status determination processing unit that updates the monitoring target list in response to a notification from the state change notification unit. The monitoring control device according to claim 4, wherein
Upon receiving a notification that the port matrix has been updated from the state change notification unit, the port matrix is acquired from the port matrix update processing unit, and information on new neighboring wireless access devices not registered in the monitoring target list is included. And a monitoring control device that updates the monitoring target list with a new adjacent wireless access device as a monitoring target. In the supervisory control device according to claim 4 or 5,
When a notification indicating that the port matrix has been updated is received from the state change notification unit, the port matrix is acquired from the port matrix update processing unit, and information on adjacent wireless access devices registered in the monitoring target list is not included The monitoring control device updates the monitoring target list by removing the adjacent wireless access device from the monitoring target. A wireless access device constituting a wireless access device monitoring control system together with a monitoring control device,
Comprising at least one wireless port and at least one wired port, connected to the monitoring control device via the wired port;
Port matrix indicating information of the adjacent wireless access device in a connected state;
A Port matrix update processing unit for updating the Port matrix when there is a change in the adjacent wireless access device in a connected state;
A wireless access device comprising: a state change notification unit that notifies the monitoring and control device when the Port matrix is updated.

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