WO2017056439A1 - Communication system, base station device, control device, and communication method - Google Patents

Communication system, base station device, control device, and communication method Download PDF

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Publication number
WO2017056439A1
WO2017056439A1 PCT/JP2016/004219 JP2016004219W WO2017056439A1 WO 2017056439 A1 WO2017056439 A1 WO 2017056439A1 JP 2016004219 W JP2016004219 W JP 2016004219W WO 2017056439 A1 WO2017056439 A1 WO 2017056439A1
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Prior art keywords
maintenance
message
communication system
terminals
terminal
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PCT/JP2016/004219
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French (fr)
Japanese (ja)
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鈴木　健弘
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日本電気株式会社
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Priority to ES201890014A priority Critical patent/ES2682519B1/en
Priority to JP2017542718A priority patent/JP6451863B2/en
Publication of WO2017056439A1 publication Critical patent/WO2017056439A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems

Definitions

  • the present invention relates to a communication system, a base station device, a control device, and a communication method in a wireless communication network.
  • network function virtualization has been studied for the purpose of reducing CAPEX (Capital Expenditure) and OPEX (Operating Expense), and reducing the installation space and power consumption of facilities.
  • CAPEX Capital Expenditure
  • OPEX Oleating Expense
  • software by a virtual machine (VM) installed on a virtualization layer such as a hypervisor on the server.
  • NFV Network Functions Virtualization
  • NFV Network Address Translation
  • DHCP Differentiated Services Code Point
  • Patent Document 1 describes a system that virtually constructs a network function provided by BRAS (Broadband Remote Access Server).
  • BRAS Broadband Remote Access Server
  • a general Broadband Router placed in a user's home is equipped with a function (Web Portal) for executing maintenance procedures for various network functions.
  • Web Portal Web Portal
  • the web portal functions installed in a general home gateway are concentrated on the network side of a communication company, the following problems arise.
  • one of the objects to be achieved by the present invention is to provide a communication system capable of differentiating the performance of maintenance processing of network devices according to user terminals.
  • the communication system of the present invention is a communication system that provides communication services to a plurality of aggregated terminals, and includes a first network device and a maintenance device that executes maintenance processing of the first network device. And when the first network device receives the first message related to the maintenance processing request from the first terminal included in the plurality of terminals, the first priority information corresponding to the first terminal is The assigned second message is generated, and the second message is transmitted to the maintenance device.
  • the network device of the present invention is a network device in a communication system that provides communication services to a plurality of aggregated terminals, and relates to a request for maintenance processing of the network device from a first terminal included in the plurality of terminals.
  • a receiving unit that receives the first message, and a message generating unit that generates a second message to which the first priority information corresponding to the first terminal is assigned when the receiving unit receives the first message.
  • a transmission unit that transmits the second message to the maintenance device that executes the maintenance process.
  • the maintenance device of the present invention is a maintenance device that performs maintenance processing of a network device in a communication system that provides communication services to a plurality of aggregated terminals, and includes a selection unit and a plurality of processing execution units. Then, when the selection unit receives a message related to the maintenance process requested by the first terminal included in the plurality of terminals, the selection unit is based on the first priority information corresponding to the first terminal given to the message. Then, the process execution unit that performs the maintenance process is selected from the plurality of process execution units.
  • the method of the present invention is a method in a communication system for providing a communication service to a plurality of aggregated terminals, and is a first related to a request for maintenance processing of a network device from a first terminal included in the plurality of terminals.
  • Receiving the first message generating the second message with the first priority information corresponding to the first terminal when the first message is received, and transmitting the second message And a step of performing.
  • the performance of the maintenance processing of the network device can be differentiated according to the user terminal.
  • 1 is a block diagram showing a configuration of a communication system according to a first embodiment. It is a flowchart for demonstrating operation
  • 1 is a block diagram showing a configuration of a communication system according to a first embodiment. It is a block diagram which shows the structure of the web portal which concerns on 2nd Embodiment. It is a flowchart for demonstrating operation
  • the plurality of embodiments described below can be implemented independently or in combination as appropriate.
  • the plurality of embodiments have different novel features. Therefore, these multiple embodiments contribute to solving different purposes or problems and contribute to producing different effects.
  • the communication system 10 in the present embodiment is a communication system that provides communication services to a plurality of aggregated user terminals 100 1 to 100 M.
  • the communication system 10 includes a network device 101 and a maintenance device 102 that executes maintenance processing for the network device 101.
  • the network device 101 receives a first message related to a maintenance processing request of the network device 101 from user terminals (here, the user terminal 100 1 ) included in the plurality of user terminals 100 1 to 100 M (step S1). ).
  • Network device 101 when receiving the first message, generating a second message priority information corresponding to the user terminal 100 1 is attached (step S2). Then, the network device 101 transmits a second message to the maintenance device 102 (step S3).
  • the maintenance apparatus on the basis of the second message priority information is given corresponding to the user terminal 100 1, it becomes possible to perform maintenance treatment of the network device 101.
  • the priority information in the present embodiment is, for example, information indicating a DSCP (Dynamic Host Configuration Protocol) value or a subscription service class of the user of the terminal.
  • the network device 101 is, for example, a virtualized IPFE (Internet Protocol Front End) device.
  • the IPFE device constitutes a BRAS server.
  • the maintenance device 102 is, for example, a web portal device.
  • the communication system 10 can be applied to a virtual system called a virtual BRAS system (vBRAS system) or a virtual CPE (Customer Equipment Equipment) system (vCPE system).
  • vBRAS system virtual BRAS system
  • CPE Customer Equipment Equipment
  • the configuration of the communication system 20 in the present embodiment is shown in FIG.
  • the communication system 20 has a configuration in which the maintenance device 102 of the communication system 10 of the first embodiment is a web portal device 200.
  • the web portal device 200 is a modification of the maintenance device 102 and executes maintenance processing of the network device 101 in the same manner as the maintenance device 102.
  • the configuration of the web portal apparatus 200 will be described with reference to FIG.
  • the web portal apparatus 200 includes a selection unit 201 and a plurality of process execution units 202 1 to 202 N.
  • Selecting unit 201 receives a message regarding the maintenance process by the user terminal included in the user terminal 100 1 ⁇ 100 M (a user terminal 100 1 in the present embodiment) is required. Then, the selection unit 201 requests the user terminal 100 1 from the plurality of processing execution units 202 1 to 202 N based on the priority information corresponding to the user terminal 100 1 given to the received message. A process execution unit that performs maintenance processing is selected.
  • Steps S1 and S2 are the same as those in the first embodiment, and a description thereof will be omitted.
  • Network device 101 transmits a second message priority information corresponding to the user terminal 100 1 is applied to the web portal device 200 (step S4).
  • the selection unit 201 of the web portal apparatus 200 receives the second message
  • the selection unit 201 of the plurality of process execution units 202 1 to 202 N is based on the priority information of the user terminal 100 1 given to the second message. from within, to select a processing execution unit for executing a maintenance processing of the user terminal 100 1 requests (step S5).
  • the priority information given to the second message when the user terminal 100 1 indicates that it is a high priority user terminal, selecting unit 201, a plurality of processing execution unit 202 1 ⁇ 202 N Among them, a processing execution unit with a low load is selected.
  • the maintenance process requested by the user terminal with a higher priority may be assigned to a process execution unit with a lower load in order. .
  • the performance of the maintenance processing of the network device can be differentiated according to the user.
  • process execution part in this embodiment can be comprised by a business logic server or an application server, for example.
  • the configuration of the communication system 30 in the present embodiment will be described with reference to FIG.
  • the communication system 30 includes a plurality of user terminals 300 1 to 300 L , a plurality of CPEs 301 1 to 301 m , an IPFE device 302, a NAT device 303, a DHCP device 304, a web portal device 305, A management server 306.
  • the CPE 301 1 to 301 m , the IPFE device 302, the NAT device 303, the DHCP device 304, and the web portal device 305 each provide a network function necessary for providing a communication service to the plurality of user terminals 300 1 to 300 L. It is a device that has become.
  • the communication system 30 can be applied to a virtual system called virtual CPE, vCPE, virtual BRAS system, or vBRAS.
  • Each of the CPEs 301 1 to 301 m aggregates a plurality of user terminals and connects to the IPFE device 302.
  • the IPFE device 302 is a device that aggregates the CPEs 301 1 to 301 m and constitutes a BRAS server.
  • the NAT device 303 performs NAT conversion when the user terminals 300 1 to 300 L communicate with the Internet network.
  • the DHCP device 304 manages the DHCP information of the user terminals 300 1 to 300 L.
  • Web portal device 305 based on a request from the user terminal 300 1 ⁇ 300 L, performs maintenance processing IPFE apparatus 302, NAT device 303 and DHCP 304.
  • the maintenance process performed on the NAT device 303 is, for example, settings related to an IPv4 (Internet Protocol version 4) -based firewall that is necessary for the user terminal to communicate with a specific counter terminal.
  • the maintenance process performed on the IPFE device 302 is, for example, a setting related to an IPv6 (Internet Protocol version 6) -based firewall.
  • the maintenance process performed on the DHCP device 304 is, for example, setting of an IP (Internet Protocol) address range that is issued to the subscriber terminal.
  • the management server 306 manages information necessary for the CPEs 301 1 to 301 m to perform connection authentication with the IPFE device 302 and the user terminals 300 1 to 300 L to receive communication services. Further, the NAT device 303 and the web portal device 305 are each connected to the Internet network.
  • the web portal apparatus 305 includes a load distribution server 307, a plurality of front-end servers 308 1 to 308 n , a plurality of business logic servers 309 1 to 309 n, and a database server 310.
  • the load distribution server 307 serves as a receiving port for HTTP (Hypertext Transfer Protocol) packets. Also, the load distribution server 307 selects a business logic server that executes maintenance processing requested by the user terminal.
  • the front-end servers 308 1 to 308 n transfer the received HTTP packets to the business logic servers 309 1 to 309 n and control screen generation and screen transition.
  • the business logic servers 309 1 to 309 n execute processing based on the messages transferred from the front end servers 308 1 to 308 n .
  • the database server 310 stores information executed and updated by the business logic servers 309 1 to 309 n .
  • the front-end servers 308 1 to 308 n are configured in pairs with the business logic servers 309 1 to 309 n , respectively.
  • the processing load of the business logic servers 309 1 to 309 n that actually execute the maintenance process is very large. Therefore, in a communication system that aggregates a plurality of user terminals as in the present embodiment, a plurality of business logic servers in the web portal are required.
  • the processing load of the front-end servers 308 1 to 308 n that performs packet transfer processing between the load distribution servers 307 and the generation of processing result screens is smaller than that of the business logic servers 309 1 to 309 n .
  • the load distribution server 307 includes an HTTP transmission / reception unit 311, a determination unit 312, a selection unit 313, and a communication unit 314.
  • the HTTP transmission / reception unit 311 transmits / receives an HTTP request and a response. Specifically, the HTTP transmission / reception unit 311 receives a maintenance processing request message from the user terminal via the IPFE device 302. Also, HTTP transceiver unit 311, a response message regarding the result of the maintenance process, and transmits to the user terminal 300 1 via a IPFE device 302.
  • the determination unit 312 holds correspondence information between the user service class and the DSCP value, and determines the user service class from the DSCP value added to the IP header of the received packet.
  • the determination unit 312 notifies the selection unit 313 of the determination result of the service class of the user.
  • the selection unit 313 periodically collects the load status of each of the business logic servers 309 1 to 309 n , and executes the maintenance process requested by the user based on the service class notified from the determination unit 312 Select.
  • the communication unit 314 transmits the received processing content to the front-end server corresponding to the business logic server selected by the selection unit 313.
  • the user terminal 300 1 in order for the user terminal 300 1 is subscribed to a network, it puts CPE301 1 power aggregating user terminal 300 1 (step S10).
  • CPE301 1 performs a connection request to the IPFE device 302 (step S11).
  • the IPFE device 302 executes an authentication process for the management server 306 (step S12).
  • the IPFE device 302 acquires from the management server 306 a correspondence table between the service class of the user and the DSCP value assigned to the IP packet.
  • the IPFE device 302 establishes a communication path with the NAT device 303 (step S13). IPFE device 302 notifies the connection completion to CPE301 1 (step S14).
  • IPFE device 302 via the IPFE device 302 performs a login request to the web portal apparatus 305 (step S15).
  • IPFE device 302 the IP packet of the login request, by applying a DSCP value corresponding to the service class of the user terminal 300 1 transmits the NAT device 303 (step S16).
  • the NAT device 303 rewrites the transmission source IP packet in the received IP packet with a packet indicating the device itself, and transmits a login request to the web portal device 305 (step S17).
  • Web portal apparatus 305 the DSCP value IPFE device 302 has acquired granted to the login response in step S12, via the IPFE device 302, transmits the login response to the user terminal 300 1 (step S18).
  • User terminal 300 1, open the setting screen.
  • the maintenance procedure for the DHCP device 304 in the present embodiment is a DHCP setting change process.
  • the user terminal 300 1, a message requesting the DHCP setting change, and transmits to the IPFE apparatus 302 (Step S20).
  • IPFE device 302 the DSCP value corresponding to the user terminal 300 1 is applied to the IP header of the message received from the user terminal 300 1 (step S21).
  • the message with the DSCP value is transmitted to the web portal device 305 via the NAT device 303 (step S22).
  • Load distribution server 307, the grant DSCP values to the received message determines the service class of the user terminal 300 1 (step S23). Based on the determined service class and the load status of each of the business logic servers 309 1 to 309 n , a business logic server that executes processing requested by the user terminal 300 1 is selected (step S24).
  • the business logic server 309 1 is selected.
  • the load distribution server 307 via the front-end server 3081 transmits a request for maintenance process to business logic server 309 1 (step S25).
  • the business logic server 309 1 executes the DHCP setting change for the DHCP device 304 (step S26).
  • the business logic server 309 1 receives a response message regarding the result of the setting change from the DHCP device 304 (step S27).
  • the business logic server 309 1 stores the contents of the DHCP configuration changes to the database server 310 (step S28). Then, the business logic server 309 1 transmits the received response message to the load distribution server 307 via the front-end server 308 1 (step S29).
  • the load distribution server 307 adds the DSCP value of the user terminal 300 1 to the received response message, and transmits the response message to the user terminal 300 1 (step S30).
  • steps S23, S24, and S30 are respectively executed by the determination unit 312, the selection unit 313, and the HTTP transmission / reception unit 311 of the load distribution server 307 illustrated in FIG.
  • the DSCP value of the user terminal is given to the maintenance processing request message from the user terminal. Further, a business logic server that performs maintenance processing is selected based on the DSCP value of the user terminal. Therefore, it is possible to differentiate the maintenance performance of network devices such as DHCP devices according to users. Furthermore, in this embodiment, the priority information of the user terminal is also given to the maintenance process response message. For this reason, the process for sending the response message for the maintenance process can also be performed according to the user terminal. Therefore, the performance of a series of processes from when a user terminal sends a maintenance process request (uplink transmission) until receiving the maintenance process response (downlink transmission) is discriminated according to the priority information of the user terminal. Can be realized.
  • the determination unit 312 and the selection unit 313 have different configurations, but the selection unit 313 may also have the function of the determination unit 312.
  • It is a communication system which provides a communication service with respect to the aggregated several terminal, Comprising: It has a 1st network apparatus and the maintenance apparatus which performs the maintenance process of said 1st network apparatus
  • the first network device receives a first message related to the maintenance processing request from a first terminal included in the plurality of terminals, the first priority corresponding to the first terminal
  • a communication system that generates a second message to which information is added and transmits the second message to the maintenance device.
  • the maintenance device includes a transmission unit that transmits a third message related to a result of the maintenance process executed by the treatment execution unit selected by the selection unit to the first terminal, and The communication system according to attachment 2, wherein the first priority information is assigned to the third message.
  • the network device further includes a plurality of network devices, and the plurality of network devices includes a NAT device that performs NAT conversion in communication of the plurality of terminals, and DHCP of the plurality of terminals.
  • a DHCP device that manages information, wherein the maintenance device further executes maintenance processing of the NAT device and the DHCP device;
  • the communication system according to any one of appendices 1 to 3.
  • Appendix 6 The communication system according to any one of appendices 1 to 5, wherein the first network device is an IPFE device.

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Abstract

[Problem] The purpose of the present invention is to provide a communication system with which it is possible to differentiate the performance of the maintenance processing of a network device in accordance with a user terminal. [Solution] A communication system in the present embodiment provides a communication service to a plurality of aggregated terminals, wherein the communication system has a first network device and a maintenance device that executes the maintenance processing of the first network device. The first network generates, when a first message pertaining to a maintenance processing request is received from a first terminal included in the plurality of terminals, a second message in which first priority information corresponding to the first terminal is added, and transmits the second message to the maintenance device.

Description

通信システム、基地局装置、制御装置、及び通信方法COMMUNICATION SYSTEM, BASE STATION DEVICE, CONTROL DEVICE, AND COMMUNICATION METHOD
　本発明は、無線通信網における通信システム、基地局装置、制御装置、及び通信方法に関する。 The present invention relates to a communication system, a base station device, a control device, and a communication method in a wireless communication network.
　近年、ＣＡＰＥＸ（Ｃａｐｉｔａｌ　Ｅｘｐｅｎｄｉｔｕｒｅ）及びＯＰＥＸ（Ｏｐｅｒａｔｉｎｇ　Ｅｘｐｅｎｓｅ）の縮小、設備の設置スペースや消費電力の抑制を目的とした、ネットワーク機能の仮想化の検討が進んでいる。具体的には、サーバのコンピューティング、ストレージやネットワーク機能等を仮想化する技術として、サーバ上の、ハイパーバイザ（ＨｙｐｅｒＶｉｓｏｒ）等の仮想化レイヤ上に実装した仮想マシン（ＶＭ：Ｖｉｒｔｕａｌ　Ｍａｃｈｉｎｅ）によりソフトウェア的に実現するＮＦＶ（Ｎｅｔｗｏｒｋ　Ｆｕｎｃｔｉｏｎｓ　Ｖｉｒｔｕａｌｉｚａｔｉｏｎ）等が知られている。 In recent years, network function virtualization has been studied for the purpose of reducing CAPEX (Capital Expenditure) and OPEX (Operating Expense), and reducing the installation space and power consumption of facilities. Specifically, as a technology for virtualizing server computing, storage, network functions, etc., software by a virtual machine (VM) installed on a virtualization layer such as a hypervisor on the server. NFV (Network Functions Virtualization) etc. which are actually realized are known.
　ＮＦＶの例として、ユーザ宅内のＢｒｏａｄｂａｎｄ　Ｒｏｕｔｅｒが具備する、ＮＡＴ（Ｎｅｔｗｏｒｋ Ａｄｄｒｅｓｓ　Ｔｒａｎｓｌａｔｉｏｎ）やＤＨＣＰ（Ｄｉｆｆｅｒｅｎｔｉａｔｅｄ　Ｓｅｒｖｉｃｅｓ　Ｃｏｄｅ　Ｐｏｉｎｔ）などの各種ネットワーク機能を、通信業者のネットワーク側に集約して仮想化する技術がある。 As an example of NFV, there is a technology that aggregates and virtualizes various network functions such as NAT (Network Address Translation) and DHCP (Differentiated Services Code Point) provided by the Broadband Router in the user's home on the network side of the carrier. .
　例えば、特許文献１には、ＢＲＡＳ（Ｂｒｏａｄｂａｎｄ　Ｒｅｍｏｔｅ　Ａｃｃｅｓｓ　Ｓｅｒｖｅｒ）が提供するネットワーク機能を仮想的に構築するシステムが記載されている。 For example, Patent Document 1 describes a system that virtually constructs a network function provided by BRAS (Broadband Remote Access Server).
国際公開第２０１４／１９２２５９号International Publication No. 2014/192259
　ユーザ宅内に配置される一般的なＢｒｏａｄｂａｎｄ　Ｒｏｕｔｅｒには、各種ネットワーク機能の保守処置を実行する機能（Ｗｅｂ　Ｐｏｒｔａｌ；ウェブポータル）が搭載されている。しかしながら、一般的なホームゲートウェイに搭載されているウェブポータル機能を通信業者のネットワーク側に集約した場合、次のような課題が生じる。 A general Broadband Router placed in a user's home is equipped with a function (Web Portal) for executing maintenance procedures for various network functions. However, when the web portal functions installed in a general home gateway are concentrated on the network side of a communication company, the following problems arise.
　すなわち、ウェブポータル機能が各ユーザ宅内のＢｒｏａｄｂａｎｄ　Ｒｏｕｔｅｒに搭載されている場合と比較すると、ネットワーク遅延や保守処理の輻輳が発生し、処理性能が劣化してしまう可能性がある。そして、保守処理の性能の劣化の影響は、集約された複数のユーザに対して均一に及んでしまう。つまり、ネットワーク装置の保守処理の性能を、ユーザ端末に応じて差別化することができない。 That is, compared with the case where the web portal function is installed in the Broadband Router in each user's home, there is a possibility that the network performance and the congestion of the maintenance process occur and the processing performance deteriorates. Then, the influence of the deterioration of the performance of the maintenance process uniformly affects a plurality of aggregated users. That is, the performance of the maintenance processing of the network device cannot be differentiated according to the user terminal.
　ここで、特許文献１に記載のシステムにおいては、ユーザの契約内容等に応じてＢＲＡＳを選択する記載があるものの、各種ネットワーク機能の保守処理については何ら対策がなされていない。そのため、特許文献１では、上述した課題を解決することはできない。 Here, in the system described in Patent Document 1, although there is a description that BRAS is selected according to the contents of the contract of the user, no measures are taken for maintenance processing of various network functions. Therefore, in patent document 1, the subject mentioned above cannot be solved.
　そこで、本発明が達成しようとする目的の一つは、ネットワーク装置の保守処理の性能を、ユーザ端末に応じて差別化することが可能な通信システムを提供することである。 Therefore, one of the objects to be achieved by the present invention is to provide a communication system capable of differentiating the performance of maintenance processing of network devices according to user terminals.
　本発明の通信システムは、集約された複数の端末に対して通信サービスを提供する通信システムであって、第一のネットワーク装置と、第一のネットワーク装置の保守処理を実行する保守装置と、を有し、第一のネットワーク装置は、複数の端末に含まれる第一の端末から、保守処理の要求に関する第一のメッセージを受信したとき、第一の端末に対応する第一の優先度情報が付与された第二のメッセージを生成し、第二のメッセージを保守装置に送信する。 The communication system of the present invention is a communication system that provides communication services to a plurality of aggregated terminals, and includes a first network device and a maintenance device that executes maintenance processing of the first network device. And when the first network device receives the first message related to the maintenance processing request from the first terminal included in the plurality of terminals, the first priority information corresponding to the first terminal is The assigned second message is generated, and the second message is transmitted to the maintenance device.
　本発明のネットワーク装置は、集約された複数の端末に対して通信サービスを提供する通信システムにおけるネットワーク装置であって、複数の端末に含まれる第一の端末から、ネットワーク装置の保守処理の要求に関する第一のメッセージを受信する受信部と、受信部が第一のメッセージを受信したとき、第一の端末に対応する第一の優先度情報が付与された第二のメッセージを生成するメッセージ生成部と、第二のメッセージを、保守処理を実行する保守装置に送信する送信部と、を有する。 The network device of the present invention is a network device in a communication system that provides communication services to a plurality of aggregated terminals, and relates to a request for maintenance processing of the network device from a first terminal included in the plurality of terminals. A receiving unit that receives the first message, and a message generating unit that generates a second message to which the first priority information corresponding to the first terminal is assigned when the receiving unit receives the first message. And a transmission unit that transmits the second message to the maintenance device that executes the maintenance process.
　本発明の保守装置は、集約された複数の端末に対して通信サービスを提供する通信システムにおけるネットワーク装置の保守処理を実行する保守装置であって、選択部と、複数の処理実行部とを有し、選択部は、複数の端末に含まれる第一の端末が要求する保守処理に関するメッセージを受信したとき、メッセージに付与された、第一の端末に対応する第一の優先度情報に基づいて、複数の処理実行部の中から保守処理を行う処理実行部を選択する。 The maintenance device of the present invention is a maintenance device that performs maintenance processing of a network device in a communication system that provides communication services to a plurality of aggregated terminals, and includes a selection unit and a plurality of processing execution units. Then, when the selection unit receives a message related to the maintenance process requested by the first terminal included in the plurality of terminals, the selection unit is based on the first priority information corresponding to the first terminal given to the message. Then, the process execution unit that performs the maintenance process is selected from the plurality of process execution units.
　本発明の方法は、集約された複数の端末に対して通信サービスを提供する通信システムにおける方法であって、複数の端末に含まれる第一の端末から、ネットワーク装置の保守処理の要求に関する第一のメッセージを受信する工程と、第一のメッセージを受信したとき、第一の端末に対応する第一の優先度情報が付与された第二のメッセージを生成する工程と、第二のメッセージを送信する工程と、を有する。 The method of the present invention is a method in a communication system for providing a communication service to a plurality of aggregated terminals, and is a first related to a request for maintenance processing of a network device from a first terminal included in the plurality of terminals. Receiving the first message, generating the second message with the first priority information corresponding to the first terminal when the first message is received, and transmitting the second message And a step of performing.
　上述の本発明によれば、ネットワーク装置の保守処理の性能を、ユーザ端末に応じて差別化することが可能となる。 According to the present invention described above, the performance of the maintenance processing of the network device can be differentiated according to the user terminal.
第１の実施形態に係る通信システムの構成を示すブロック図である。1 is a block diagram showing a configuration of a communication system according to a first embodiment. 第１の実施形態に係る通信システムの動作を説明するためのフローチャートである。It is a flowchart for demonstrating operation | movement of the communication system which concerns on 1st Embodiment. 第１の実施形態に係る通信システムの構成を示すブロック図である。1 is a block diagram showing a configuration of a communication system according to a first embodiment. 第２の実施形態に係るウェブポータルの構成を示すブロック図である。It is a block diagram which shows the structure of the web portal which concerns on 2nd Embodiment. 第２の実施形態に係る通信システムの動作を説明するためのフローチャートである。It is a flowchart for demonstrating operation | movement of the communication system which concerns on 2nd Embodiment. 第３の実施形態に係る通信システムの構成を示すブロック図である。It is a block diagram which shows the structure of the communication system which concerns on 3rd Embodiment. 第３の実施形態に係るウェブポータルの構成を示すブロック図である。It is a block diagram which shows the structure of the web portal which concerns on 3rd Embodiment. 第３実施形態に係る負荷分散サーバの構成を示すブロック図である。It is a block diagram which shows the structure of the load distribution server which concerns on 3rd Embodiment. 第３の実施形態に係る通信システムの動作を説明するためのフローチャートである。It is a flowchart for demonstrating operation | movement of the communication system which concerns on 3rd Embodiment. 第３実施形態に係る通信システムの動作を説明するためのフローチャートである。It is a flowchart for demonstrating operation | movement of the communication system which concerns on 3rd Embodiment.
　以下では、具体的な実施形態について、図面を参照しながら詳細に説明する。各図面において、同一又は対応する要素には同一の符号が付されており、説明の明確化のため、必要に応じて重複説明は省略される。 Hereinafter, specific embodiments will be described in detail with reference to the drawings. In each drawing, the same or corresponding elements are denoted by the same reference numerals, and redundant description is omitted as necessary for clarification of the description.
　以下に説明される複数の実施形態は、独立に実施されることも、適宜組み合わせて実施されることも可能である。これら複数の実施形態は、互いに異なる新規な特徴を有している。したがって、これら複数の実施形態は、互いに異なる目的又は課題を解決することに寄与し、互いに異なる効果を奏することに寄与する。 The plurality of embodiments described below can be implemented independently or in combination as appropriate. The plurality of embodiments have different novel features. Therefore, these multiple embodiments contribute to solving different purposes or problems and contribute to producing different effects.
　[第１の実施形態]
　本発明の第１の実施形態における通信システムの構成について、図１を用いて説明する。 [First embodiment]
The configuration of the communication system in the first embodiment of the present invention will be described with reference to FIG.
　本実施形態における通信システム１０は、集約された複数のユーザ端末１００１～１００Ｍに対して通信サービスを提供する通信システムである。通信システム１０は、ネットワーク装置１０１と、ネットワーク装置１０１の保守処理を実行する保守装置１０２と、を有する。 The communication system 10 in the present embodiment is a communication system that provides communication services to a plurality of aggregated user terminals 100 1 to 100 M. The communication system 10 includes a network device 101 and a maintenance device 102 that executes maintenance processing for the network device 101.
　次に、本実施形態における通信システム１０の動作について、図２を用いて説明する。
ネットワーク装置１０１は、複数のユーザ端末１００１～１００Ｍに含まれるユーザ端末（ここではユーザ端末１００１とする）から、ネットワーク装置１０１の保守処理の要求に関する第一のメッセージを受信する（ステップＳ１）。ネットワーク装置１０１は、第一のメッセージを受信したとき、ユーザ端末１００１に対応する優先度情報が付与された第二のメッセージを生成する（ステップＳ２）。そして、ネットワーク装置１０１は、第二のメッセージを保守装置１０２に送信する（ステップＳ３）。 Next, operation | movement of the communication system 10 in this embodiment is demonstrated using FIG.
The network device 101 receives a first message related to a maintenance processing request of the network device 101 from user terminals (here, the user terminal 100 1 ) included in the plurality of user terminals 100 1 to 100 M (step S1). ). Network device 101, when receiving the first message, generating a second message priority information corresponding to the user terminal 100 1 is attached (step S2). Then, the network device 101 transmits a second message to the maintenance device 102 (step S3).
　これにより、保守装置は、ユーザ端末１００１に対応する優先度情報が付与された第二のメッセージに基づいて、ネットワーク装置１０１の保守処置を実行することが可能となる。 Thus, the maintenance apparatus on the basis of the second message priority information is given corresponding to the user terminal 100 1, it becomes possible to perform maintenance treatment of the network device 101.
　そのため、ネットワーク装置の保守処理の性能を、ユーザ端末に応じて差別化することが可能となる。 Therefore, it becomes possible to differentiate the maintenance performance of the network device according to the user terminal.
　なお、本実施形態における優先度情報は、例えば、ＤＳＣＰ（Ｄｙｎａｍｉｃ　Ｈｏｓｔ　Ｃｏｎｆｉｇｕｒａｔｉｏｎ　Ｐｒｏｔｏｃｏｌ）値や、端末のユーザの加入サービスクラスを示す情報である。ネットワーク装置１０１は、例えば、仮想化されたＩＰＦＥ（Ｉｎｔｅｒｎｅｔ　Ｐｒｏｔｏｃｏｌ　Ｆｒｏｎｔ　Ｅｎｄ）装置である。なお、ＩＰＦＥ装置は、ＢＲＡＳサーバを構成する。更に、保守装置１０２は、例えば、ウェブポータル装置である。 Note that the priority information in the present embodiment is, for example, information indicating a DSCP (Dynamic Host Configuration Protocol) value or a subscription service class of the user of the terminal. The network device 101 is, for example, a virtualized IPFE (Internet Protocol Front End) device. The IPFE device constitutes a BRAS server. Furthermore, the maintenance device 102 is, for example, a web portal device.
　また、通信システム１０は、仮想ＢＲＡＳシステム（ｖＢＲＡＳシステム）や仮想ＣＰＥ（Ｃｕｓｔｏｍｅｒ　Ｐｒｅｍｉｓｅｓ　Ｅｑｕｉｐｍｅｎｔ）システム（ｖＣＰＥシステム）と呼ばれる仮想化システムに適用することができる。 Further, the communication system 10 can be applied to a virtual system called a virtual BRAS system (vBRAS system) or a virtual CPE (Customer Equipment Equipment) system (vCPE system).
　[第２の実施形態]
　本発明の第２の実施形態における通信システムについて説明する。本実施形態における通信システム２０の構成を、図３に示す。通信システム２０は、第１の実施形態の通信システム１０の保守装置１０２を、ウェブポータル装置２００とした構成を有する。ウェブポータル装置２００は、保守装置１０２の変形例であり、保守装置１０２と同様にネットワーク装置１０１の保守処理を実行する。 [Second Embodiment]
A communication system according to the second embodiment of the present invention will be described. The configuration of the communication system 20 in the present embodiment is shown in FIG. The communication system 20 has a configuration in which the maintenance device 102 of the communication system 10 of the first embodiment is a web portal device 200. The web portal device 200 is a modification of the maintenance device 102 and executes maintenance processing of the network device 101 in the same manner as the maintenance device 102.
　ウェブポータル装置２００の構成を、図４を用いて説明する。ウェブポータル装置２００は、選択部２０１と、複数の処理実行部２０２１～２０２Ｎと、を有する。選択部２０１は、ユーザ端末１００１～１００Ｍに含まれるユーザ端末（本実施形態ではユーザ端末１００１とする）が要求する保守処理に関するメッセージを受信する。そして、選択部２０１は、受信したメッセージに付与された、ユーザ端末１００１に対応する優先度情報に基づいて、複数の処理実行部２０２１～２０２Ｎの中から、ユーザ端末１００１が要求する保守処理を行う処理実行部を選択する。 The configuration of the web portal apparatus 200 will be described with reference to FIG. The web portal apparatus 200 includes a selection unit 201 and a plurality of process execution units 202 1 to 202 N. Selecting unit 201 receives a message regarding the maintenance process by the user terminal included in the user terminal 100 1 ~ 100 M (a user terminal 100 1 in the present embodiment) is required. Then, the selection unit 201 requests the user terminal 100 1 from the plurality of processing execution units 202 1 to 202 N based on the priority information corresponding to the user terminal 100 1 given to the received message. A process execution unit that performs maintenance processing is selected.
　次に、本実施形態における通信システム２０の動作について、図５を用いて説明する。なお、ステップＳ１とＳ２については、第１の実施形態と同様なので、説明は省略する。 Next, the operation of the communication system 20 in the present embodiment will be described with reference to FIG. Steps S1 and S2 are the same as those in the first embodiment, and a description thereof will be omitted.
　ネットワーク装置１０１は、ユーザ端末１００１に対応する優先度情報が付与された第二のメッセージをウェブポータル装置２００に送信する（ステップＳ４）。ウェブポータル装置２００の選択部２０１は、第二のメッセージを受信すると、該第二のメッセージに付与されたユーザ端末１００１の優先度情報に基づいて、複数の処理実行部２０２１～２０２Ｎの中から、ユーザ端末１００１が要求する保守処理を実行する処理実行部を選択する（ステップＳ５）。 Network device 101 transmits a second message priority information corresponding to the user terminal 100 1 is applied to the web portal device 200 (step S4). When the selection unit 201 of the web portal apparatus 200 receives the second message, the selection unit 201 of the plurality of process execution units 202 1 to 202 N is based on the priority information of the user terminal 100 1 given to the second message. from within, to select a processing execution unit for executing a maintenance processing of the user terminal 100 1 requests (step S5).
　例えば、第二のメッセージに付与された優先度情報が、ユーザ端末１００１が優先度の高いユーザ端末であることを示している場合、選択部２０１は、複数の処理実行部２０２１～２０２Ｎのうち、負荷の少ない処理実行部を選択する。また、優先度が互いに異なる複数のユーザ端末それぞれから保守処理の要求があった場合には、優先度の高いユーザ端末が要求する保守処理から順に、負荷の少ない処理実行部へ割り当てることとしても良い。 For example, the priority information given to the second message, when the user terminal 100 1 indicates that it is a high priority user terminal, selecting unit 201, a plurality of processing execution unit 202 1 ~ 202 N Among them, a processing execution unit with a low load is selected. In addition, when there is a maintenance process request from each of a plurality of user terminals having different priorities, the maintenance process requested by the user terminal with a higher priority may be assigned to a process execution unit with a lower load in order. .
　これにより、本実施形態においては、ネットワーク装置の保守処理の性能をユーザに応じて差別化することが可能となる。 Thereby, in the present embodiment, the performance of the maintenance processing of the network device can be differentiated according to the user.
　なお、本実施形態における処理実行部は、例えば、ビジネスロジックサーバや、アプリケーションサーバによって構成することができる。 In addition, the process execution part in this embodiment can be comprised by a business logic server or an application server, for example.
　[第３の実施形態]
　次に、本発明の第３の実施形態における通信システムについて説明する。 [Third embodiment]
Next, a communication system according to the third embodiment of the present invention will be described.
　本実施形態における通信システム３０の構成を、図６を用いて説明する。本実施形態における通信システム３０は、複数のユーザ端末３００１～３００Ｌと、複数のＣＰＥ３０１１～３０１ｍと、ＩＰＦＥ装置３０２と、ＮＡＴ装置３０３と、ＤＨＣＰ装置３０４と、ウェブポータル装置３０５と、管理サーバ３０６と、を有する。なお、ＣＰＥ３０１１～３０１ｍ、ＩＰＦＥ装置３０２、ＮＡＴ装置３０３、ＤＨＣＰ装置３０４およびウェブポータル装置３０５はそれぞれ、複数のユーザ端末３００１～３００Ｌに通信サービスを提供するために必要なネットワーク機能を仮想化した装置である。なお、通信システム３０は、仮想ＣＰＥ、ｖＣＰＥ、仮想ＢＲＡＳシステム、またはｖＢＲＡＳと呼ばれる仮想システムに適用することができる。 The configuration of the communication system 30 in the present embodiment will be described with reference to FIG. The communication system 30 according to this embodiment includes a plurality of user terminals 300 1 to 300 L , a plurality of CPEs 301 1 to 301 m , an IPFE device 302, a NAT device 303, a DHCP device 304, a web portal device 305, A management server 306. Note that the CPE 301 1 to 301 m , the IPFE device 302, the NAT device 303, the DHCP device 304, and the web portal device 305 each provide a network function necessary for providing a communication service to the plurality of user terminals 300 1 to 300 L. It is a device that has become. The communication system 30 can be applied to a virtual system called virtual CPE, vCPE, virtual BRAS system, or vBRAS.
　ＣＰＥ３０１１～３０１ｍはそれぞれ、複数のユーザ端末を集約し、ＩＰＦＥ装置３０２に接続する。ＩＰＦＥ装置３０２は、ＣＰＥ３０１１～３０１ｍを集約する装置であり、ＢＲＡＳサーバを構成する。ＮＡＴ装置３０３は、ユーザ端末３００１～３００Ｌがインターネット網と通信する際のＮＡＴ変換を行う。ＤＨＣＰ装置３０４は、ユーザ端末３００１～３００ＬのＤＨＣＰ情報を管理する。ウェブポータル装置３０５は、ユーザ端末３００１～３００Ｌからの要求に基づいて、ＩＰＦＥ装置３０２、ＮＡＴ装置３０３およびＤＨＣＰ装置３０４の保守処理を行う。ＮＡＴ装置３０３に対して行う保守処理とは、例えば、ユーザ端末が特定の対向端末と通信を行う上で必要となるＩＰｖ４（Ｉｎｔｅｒｎｅｔ　Ｐｒｏｔｏｃｏｌ　ｖｅｒｓｉｏｎ　４）ベースのファイアウォールに関する設定である。ＩＰＦＥ装置３０２に対して行う保守処理とは、例えば、ＩＰｖ６（Ｉｎｔｅｒｎｅｔ　Ｐｒｏｔｏｃｏｌ　ｖｅｒｓｉｏｎ　６）ベースのファイアウォールに関する設定である。ＤＨＣＰ装置３０４に対して行う保守処理とは、例えば、加入者端末に払い出されるＩＰ（Ｉｎｔｅｒｎｅｔ　Ｐｒｏｔｏｃｏｌ）アドレス範囲の設定である。管理サーバ３０６は、ＣＰＥ３０１１～３０１ｍがそれぞれＩＰＦＥ装置３０２に接続認証を行い、ユーザ端末３００１～３００Ｌが通信サービスを受ける為に必要な情報を管理する。また、ＮＡＴ装置３０３と、ウェブポータル装置３０５はそれぞれ、インターネット網に接続する。 Each of the CPEs 301 1 to 301 m aggregates a plurality of user terminals and connects to the IPFE device 302. The IPFE device 302 is a device that aggregates the CPEs 301 1 to 301 m and constitutes a BRAS server. The NAT device 303 performs NAT conversion when the user terminals 300 1 to 300 L communicate with the Internet network. The DHCP device 304 manages the DHCP information of the user terminals 300 1 to 300 L. Web portal device 305, based on a request from the user terminal 300 1 ~ 300 L, performs maintenance processing IPFE apparatus 302, NAT device 303 and DHCP 304. The maintenance process performed on the NAT device 303 is, for example, settings related to an IPv4 (Internet Protocol version 4) -based firewall that is necessary for the user terminal to communicate with a specific counter terminal. The maintenance process performed on the IPFE device 302 is, for example, a setting related to an IPv6 (Internet Protocol version 6) -based firewall. The maintenance process performed on the DHCP device 304 is, for example, setting of an IP (Internet Protocol) address range that is issued to the subscriber terminal. The management server 306 manages information necessary for the CPEs 301 1 to 301 m to perform connection authentication with the IPFE device 302 and the user terminals 300 1 to 300 L to receive communication services. Further, the NAT device 303 and the web portal device 305 are each connected to the Internet network.
　次に、ウェブポータル装置３０５の構成について、図７を用いて説明する。ウェブポータル装置３０５は、負荷分散サーバ３０７と、複数のフロントエンドサーバ３０８１～３０８ｎと、複数のビジネスロジックサーバ３０９１～３０９ｎと、データベースサーバ３１０とを有する。負荷分散サーバ３０７は、ＨＴＴＰ（Ｈｙｐｅｒｔｅｘｔ　Ｔｒａｎｓｆｅｒ　Ｐｒｏｔｏｃｏｌ）パケットの受け口となる。また、負荷分散サーバ３０７は、ユーザ端末が要求する保守処理を実行するビジネスロジックサーバを選択する。フロントエンドサーバ３０８１～３０８ｎは、受信したＨＴＴＰパケットをビジネスロジックサーバ３０９１～３０９ｎへ転送し、画面生成や画面遷移を制御する。ビジネスロジックサーバ３０９１～３０９ｎは、フロントエンドサーバ３０８１～３０８ｎから転送されたメッセージに基づいた処理を実行する。データベースサーバ３１０は、ビジネスロジックサーバ３０９１～３０９ｎが実行、更新した情報を保存する。フロントエンドサーバ３０８１～３０８ｎはそれぞれ、ビジネスロジックサーバ３０９１～３０９ｎと対になって構成される。なお、ウェブポータル装置３０５の中で、実際に保守処理を実行するビジネスロジックサーバ３０９１～３０９ｎの処理負担は非常に大きい。そのため、本実施形態のように、複数のユーザ端末を集約する通信システムにおいては、ウェブポータル内のビジネスロジックサーバは複数台必要となる。一方、負荷分散サーバ３０７間のパケット転送処理と処理結果の画面生成を行うフロントエンドサーバ３０８１～３０８ｎの処理負担は、ビジネスロジックサーバ３０９１～３０９ｎの処理負担と比較すると小さい。 Next, the configuration of the web portal apparatus 305 will be described with reference to FIG. The web portal apparatus 305 includes a load distribution server 307, a plurality of front-end servers 308 1 to 308 n , a plurality of business logic servers 309 1 to 309 n, and a database server 310. The load distribution server 307 serves as a receiving port for HTTP (Hypertext Transfer Protocol) packets. Also, the load distribution server 307 selects a business logic server that executes maintenance processing requested by the user terminal. The front-end servers 308 1 to 308 n transfer the received HTTP packets to the business logic servers 309 1 to 309 n and control screen generation and screen transition. The business logic servers 309 1 to 309 n execute processing based on the messages transferred from the front end servers 308 1 to 308 n . The database server 310 stores information executed and updated by the business logic servers 309 1 to 309 n . The front-end servers 308 1 to 308 n are configured in pairs with the business logic servers 309 1 to 309 n , respectively. In the web portal apparatus 305, the processing load of the business logic servers 309 1 to 309 n that actually execute the maintenance process is very large. Therefore, in a communication system that aggregates a plurality of user terminals as in the present embodiment, a plurality of business logic servers in the web portal are required. On the other hand, the processing load of the front-end servers 308 1 to 308 n that performs packet transfer processing between the load distribution servers 307 and the generation of processing result screens is smaller than that of the business logic servers 309 1 to 309 n .
　次に、負荷分散サーバ３０７の構成について、図８を用いて説明する。負荷分散サーバ３０７は、ＨＴＴＰ送受信部３１１、判別部３１２、選択部３１３、通信部３１４を有する。ＨＴＴＰ送受信部３１１は、ＨＴＴＰリクエスト及びレスポンスの送受信を行う。具体的には、ＨＴＴＰ送受信部３１１は、ユーザ端末からの保守処理の要求メッセージを、ＩＰＦＥ装置３０２を介して受信する。また、ＨＴＴＰ送受信部３１１は、該保守処理の結果に関する応答メッセージを、ＩＰＦＥ装置３０２を介してユーザ端末３００１に送信する。判別部３１２は、ユーザのサービスクラスとＤＳＣＰ値との対応情報を保持し、受信したパケットのＩＰヘッダに付与されたＤＳＣＰ値から、ユーザのサービスクラスを判別する。そして、判別部３１２は、ユーザのサービスクラスの判別結果を、選択部３１３に通知する。選択部３１３は、各ビジネスロジックサーバ３０９１～３０９ｎの負荷状況を定期的に収集し、判別部３１２から通知されたサービスクラスに基づいて、ユーザから要求された保守処理を実行するビジネスロジックサーバを選択する。通信部３１４は、選択部３１３が選択したビジネスロジックサーバに対応するフロントエンドサーバに対して、受信した処理内容の送信を行う。 Next, the configuration of the load distribution server 307 will be described with reference to FIG. The load distribution server 307 includes an HTTP transmission / reception unit 311, a determination unit 312, a selection unit 313, and a communication unit 314. The HTTP transmission / reception unit 311 transmits / receives an HTTP request and a response. Specifically, the HTTP transmission / reception unit 311 receives a maintenance processing request message from the user terminal via the IPFE device 302. Also, HTTP transceiver unit 311, a response message regarding the result of the maintenance process, and transmits to the user terminal 300 1 via a IPFE device 302. The determination unit 312 holds correspondence information between the user service class and the DSCP value, and determines the user service class from the DSCP value added to the IP header of the received packet. Then, the determination unit 312 notifies the selection unit 313 of the determination result of the service class of the user. The selection unit 313 periodically collects the load status of each of the business logic servers 309 1 to 309 n , and executes the maintenance process requested by the user based on the service class notified from the determination unit 312 Select. The communication unit 314 transmits the received processing content to the front-end server corresponding to the business logic server selected by the selection unit 313.
　次に、本実施形態における通信システム３０の動作を説明する。初めに、ユーザ端末３００１がネットワークに加入して、ウェブポータル装置３０５にログイン要求を行い、ユーザのサービスクラスを取得するまでの動作フローについて、図９を用いて説明する。 Next, the operation of the communication system 30 in the present embodiment will be described. First , an operation flow from when the user terminal 3001 joins the network to make a login request to the web portal apparatus 305 and acquire a user service class will be described with reference to FIG.
　まず、ユーザ端末３００１がネットワークに加入するために、ユーザ端末３００１を集約するＣＰＥ３０１１の電源をつける（ステップＳ１０）。ＣＰＥ３０１１は、ＩＰＦＥ装置３０２に対して接続要求を行う（ステップＳ１１）。ＩＰＦＥ装置３０２は、管理サーバ３０６に対して認証処理を実行する（ステップＳ１２）。このとき、ＩＰＦＥ装置３０２は、ユーザのサービスクラスとＩＰパケットに付与するＤＳＣＰ値の対応表を、管理サーバ３０６から取得する。ＩＰＦＥ装置３０２は、ＮＡＴ装置３０３との間の通信路を確立する（ステップＳ１３）。ＩＰＦＥ装置３０２は、接続完了をＣＰＥ３０１１に通知する（ステップＳ１４）。ユーザ端末３００１はＩＰＦＥ装置３０２を経由して、ウェブポータル装置３０５へログイン要求を行う（ステップＳ１５）。このとき、ＩＰＦＥ装置３０２は、該ログイン要求のＩＰパケットに、ユーザ端末３００１のサービスクラスに応じたＤＳＣＰ値を付与して、ＮＡＴ装置３０３に送信する（ステップＳ１６）。ＮＡＴ装置３０３は、受信したＩＰパケットのうち送信元ＩＰパケットを、自装置を示すパケットに書き換えた上で、ログイン要求をウェブポータル装置３０５へ送信する（ステップＳ１７）。ウェブポータル装置３０５は、ステップＳ１２においてＩＰＦＥ装置３０２が取得したＤＳＣＰ値をログイン応答に付与し、ＩＰＦＥ装置３０２を経由して、該ログイン応答をユーザ端末３００１に送信する（ステップＳ１８）。ユーザ端末３００１は、設定画面を開く。 First, in order for the user terminal 300 1 is subscribed to a network, it puts CPE301 1 power aggregating user terminal 300 1 (step S10). CPE301 1 performs a connection request to the IPFE device 302 (step S11). The IPFE device 302 executes an authentication process for the management server 306 (step S12). At this time, the IPFE device 302 acquires from the management server 306 a correspondence table between the service class of the user and the DSCP value assigned to the IP packet. The IPFE device 302 establishes a communication path with the NAT device 303 (step S13). IPFE device 302 notifies the connection completion to CPE301 1 (step S14). User terminal 300 1 via the IPFE device 302 performs a login request to the web portal apparatus 305 (step S15). At this time, IPFE device 302, the IP packet of the login request, by applying a DSCP value corresponding to the service class of the user terminal 300 1 transmits the NAT device 303 (step S16). The NAT device 303 rewrites the transmission source IP packet in the received IP packet with a packet indicating the device itself, and transmits a login request to the web portal device 305 (step S17). Web portal apparatus 305, the DSCP value IPFE device 302 has acquired granted to the login response in step S12, via the IPFE device 302, transmits the login response to the user terminal 300 1 (step S18). User terminal 300 1, open the setting screen.
　次に、ユーザ端末３００１が、ＤＨＣＰ装置３０４に対する保守処置を要求する場合における動作フローを、図１０を用いて説明する。なお、本実施形態におけるＤＨＣＰ装置３０４に対する保守処置は、ＤＨＣＰ設定変更の処理とする。 Then, the user terminal 300 1, the operation flow in the case that requires a service action for the DHCP apparatus 304 will be described with reference to FIG. The maintenance procedure for the DHCP device 304 in the present embodiment is a DHCP setting change process.
　最初に、ユーザ端末３００１は、ＤＨＣＰ設定変更の要求するメッセージを、ＩＰＦＥ装置３０２に送信する（ステップＳ２０）。ＩＰＦＥ装置３０２は、ユーザ端末３００１に応じたＤＳＣＰ値を、ユーザ端末３００１から受信したメッセージのＩＰヘッダに付与する（ステップＳ２１）。そして、該ＤＳＣＰ値が付与されたメッセージを、ＮＡＴ装置３０３を介してウェブポータル装置３０５に送信する（ステップＳ２２）。負荷分散サーバ３０７は、受信したメッセージに付与されたＤＳＣＰ値から、ユーザ端末３００１のサービスクラスを判別する（ステップＳ２３）。そして、判別されたサービスクラスと、各ビジネスロジックサーバ３０９１～３０９ｎの負荷状況とに基づいて、ユーザ端末３００１が要求する処理を実行するビジネスロジックサーバを選択する（ステップＳ２４）。本実施形態においては、ビジネスロジックサーバ３０９１が選択されるとする。この場合、負荷分散サーバ３０７は、フロントエンドサーバ３０８１を介して、ビジネスロジックサーバ３０９１へ保守処理の要求を送信する（ステップＳ２５）。ビジネスロジックサーバ３０９１は、ＤＨＣＰ装置３０４に対するＤＨＣＰ設定変更を実施する（ステップＳ２６）。 First, the user terminal 300 1, a message requesting the DHCP setting change, and transmits to the IPFE apparatus 302 (Step S20). IPFE device 302, the DSCP value corresponding to the user terminal 300 1 is applied to the IP header of the message received from the user terminal 300 1 (step S21). Then, the message with the DSCP value is transmitted to the web portal device 305 via the NAT device 303 (step S22). Load distribution server 307, the grant DSCP values to the received message, determines the service class of the user terminal 300 1 (step S23). Based on the determined service class and the load status of each of the business logic servers 309 1 to 309 n , a business logic server that executes processing requested by the user terminal 300 1 is selected (step S24). In this embodiment, the business logic server 309 1 is selected. In this case, the load distribution server 307 via the front-end server 3081 transmits a request for maintenance process to business logic server 309 1 (step S25). The business logic server 309 1 executes the DHCP setting change for the DHCP device 304 (step S26).
　ビジネスロジックサーバ３０９１は、ＤＨＣＰ装置３０４から設定変更の結果に関する応答メッセージを受信する（ステップＳ２７）。そして、ビジネスロジックサーバ３０９１は、該ＤＨＣＰ設定変更の内容をデータベースサーバ３１０に保存する（ステップＳ２８）。そして、ビジネスロジックサーバ３０９１は、受信した応答メッセージを、フロントエンドサーバ３０８１を介して負荷分散サーバ３０７に送信する（ステップＳ２９）。負荷分散サーバ３０７は、受信した応答メッセージにユーザ端末３００１のＤＳＣＰ値を付与した上で、該応答メッセージをユーザ端末３００１に送信する（ステップＳ３０）。 The business logic server 309 1 receives a response message regarding the result of the setting change from the DHCP device 304 (step S27). The business logic server 309 1 stores the contents of the DHCP configuration changes to the database server 310 (step S28). Then, the business logic server 309 1 transmits the received response message to the load distribution server 307 via the front-end server 308 1 (step S29). The load distribution server 307 adds the DSCP value of the user terminal 300 1 to the received response message, and transmits the response message to the user terminal 300 1 (step S30).
　なお、ステップＳ２３、Ｓ２４、Ｓ３０はそれぞれ、図８に示す負荷分散サーバ３０７の判別部３１２、選択部３１３、ＨＴＴＰ送受信部３１１によって実行される。 Note that steps S23, S24, and S30 are respectively executed by the determination unit 312, the selection unit 313, and the HTTP transmission / reception unit 311 of the load distribution server 307 illustrated in FIG.
　以上のように、本実施形態においては、ユーザ端末からの保守処理の要求メッセージに対して、該ユーザ端末のＤＳＣＰ値が付与される。更に、ユーザ端末のＤＳＣＰ値に基づいて保守処理を行うビジネスロジックサーバの選択が行われる。そのため、ＤＨＣＰ装置などのネットワーク装置の保守処理の性能をユーザに応じて差別化することが可能となる。更に、本実施形態においては、保守処理の応答メッセージに対しても、ユーザ端末の優先度情報が付与されることとした。そのため、保守処理の応答メッセージの送信処理についても、ユーザ端末に応じた処理とすることができる。従って、ユーザ端末が保守処理の要求（上り送信）を送信してから該保守処理の応答（下り送信）を受信するまでの一連の処理の性能を、該ユーザ端末の優先度情報に応じて差別化することが可能となる。 As described above, in this embodiment, the DSCP value of the user terminal is given to the maintenance processing request message from the user terminal. Further, a business logic server that performs maintenance processing is selected based on the DSCP value of the user terminal. Therefore, it is possible to differentiate the maintenance performance of network devices such as DHCP devices according to users. Furthermore, in this embodiment, the priority information of the user terminal is also given to the maintenance process response message. For this reason, the process for sending the response message for the maintenance process can also be performed according to the user terminal. Therefore, the performance of a series of processes from when a user terminal sends a maintenance process request (uplink transmission) until receiving the maintenance process response (downlink transmission) is discriminated according to the priority information of the user terminal. Can be realized.
　なお、本実施形態においては、判別部３１２と選択部３１３は別の構成としたが、選択部３１３が判別部３１２の機能も有することとしても良い。 In this embodiment, the determination unit 312 and the selection unit 313 have different configurations, but the selection unit 313 may also have the function of the determination unit 312.
　また、本実施形態におけるビジネスロジックサーバ３０９１～３０９ｎのハードウェアスペックは均一であることとしても良い。しかし、仮想化することによってハードウェアは汎用品で構成可能となるため、運用時異なるスペックのハードウェアで構成することも有り得る。この場合、選択部３１３がビジネスロジックサーバの選択を行う際、各ビジネスロジックサーバの負荷状況だけでなく、各ビジネスロジックサーバのハードウェアスペックも考慮することとしても良い。 Further, the hardware specifications of the business logic servers 309 1 to 309 n in this embodiment may be uniform. However, since the hardware can be configured as a general-purpose product by virtualization, it may be configured with hardware having different specifications during operation. In this case, when the selection unit 313 selects a business logic server, not only the load status of each business logic server but also the hardware specifications of each business logic server may be considered.
　なお、上述した各実施形態における通信システムは、仮想ＢＲＡＳシステム（ｖＢＲＡＳシステム）や仮想ＣＰＥシステム（ｖＣＰＥシステム）と呼ばれる仮想化システムに適用することができるとしたが、これに限らない。すなわち、ネットワーク機能を集約し、集約した各機能の保守処理を実施する保守装置を保有するシステムであれば、適用が可能である。 In addition, although the communication system in each embodiment described above can be applied to a virtual system called a virtual BRAS system (vBRAS system) or a virtual CPE system (vCPE system), it is not limited to this. In other words, the present invention can be applied to any system that has a maintenance device that aggregates network functions and performs maintenance processing of each aggregated function.
　また、上述した実施形態の各処理は、ソフトウェアによって実行されてもよい。すなわち、各処理を行うためのコンピュータ・プログラムが、情報処理装置が備えるＣＰＵ（Ｃｅｎｔｒａｌ　Ｐｒｏｃｅｓｓｉｎｇ　Ｕｎｉｔ）によって読み込まれ、実行されてもよい。プログラムを用いて各処理を行っても、上述の実施形態の処理と同内容の処理を行うことができる。そして、上記のプログラムは、ＲＯＭ（Ｒｅａｄ　Ｏｎｌｙ　Ｍｅｍｏｒｙ）、ＲＡＭ（Ｒａｎｄｏｍ　Ａｃｃｅｓｓ　Ｍｅｍｏｒｙ）、フラッシュメモリ等の半導体記憶装置、光ディスク、磁気ディスク、光磁気ディスク等、非一時的な媒体に格納されてもよい。 Further, each process of the above-described embodiment may be executed by software. That is, a computer program for performing each process may be read and executed by a CPU (Central Processing Unit) included in the information processing apparatus. Even if each process is performed using a program, the same process as the process of the above-described embodiment can be performed. The above program may be stored in a non-transitory medium such as a ROM (Read Only Memory), a RAM (Random Access Memory), a semiconductor memory device such as a flash memory, an optical disk, a magnetic disk, or a magneto-optical disk. .
　上記の実施形態の一部又は全部は、以下の付記のようにも記載されうるが、以下には限られない。 Some or all of the above embodiments can be described as in the following supplementary notes, but are not limited thereto.
　（付記１）集約された複数の端末に対して通信サービスを提供する通信システムであって、第一のネットワーク装置と、前記第一のネットワーク装置の保守処理を実行する保守装置と、を有し、前記第一のネットワーク装置は、前記複数の端末に含まれる第一の端末から、前記保守処理の要求に関する第一のメッセージを受信したとき、前記第一の端末に対応する第一の優先度情報が付与された第二のメッセージを生成し、前記第二のメッセージを前記保守装置に送信する、通信システム。 (Additional remark 1) It is a communication system which provides a communication service with respect to the aggregated several terminal, Comprising: It has a 1st network apparatus and the maintenance apparatus which performs the maintenance process of said 1st network apparatus When the first network device receives a first message related to the maintenance processing request from a first terminal included in the plurality of terminals, the first priority corresponding to the first terminal A communication system that generates a second message to which information is added and transmits the second message to the maintenance device.
　（付記２）前記保守装置は、選択部と、複数の処理実行部とを有し、前記選択部は、前記第二のメッセージを受信したとき、前記第一の優先度情報に基づいて、前記複数の処理実行部の中から、前記保守処理を行う処理実行部を選択する、付記１に記載の通信システム。 (Supplementary Note 2) The maintenance device includes a selection unit and a plurality of processing execution units, and the selection unit receives the second message, based on the first priority information, The communication system according to appendix 1, wherein a process execution unit that performs the maintenance process is selected from a plurality of process execution units.
　（付記３）前記保守装置は、前記選択部によって選択された処置実行部が実行した前記保守処理の結果に関する第三のメッセージを、前記第一の端末へ送信する送信部を有し、前記第三のメッセージには、前記第一の優先度情報が付与される、付記２に記載の通信システム。 (Supplementary Note 3) The maintenance device includes a transmission unit that transmits a third message related to a result of the maintenance process executed by the treatment execution unit selected by the selection unit to the first terminal, and The communication system according to attachment 2, wherein the first priority information is assigned to the third message.
　（付記４）前記第一のネットワーク装置の他に複数のネットワーク装置を更に有し、前記複数のネットワーク装置は、前記複数の端末の通信におけるＮＡＴ変換を行うＮＡＴ装置と、前記複数の端末のＤＨＣＰ情報を管理するＤＨＣＰ装置を含み、前記保守装置は、前記ＮＡＴ装置及び前記ＤＨＣＰ装置の保守処理を更に実行する、
付記１乃至３のいずれか一つに記載の通信システム。 (Supplementary Note 4) In addition to the first network device, the network device further includes a plurality of network devices, and the plurality of network devices includes a NAT device that performs NAT conversion in communication of the plurality of terminals, and DHCP of the plurality of terminals. A DHCP device that manages information, wherein the maintenance device further executes maintenance processing of the NAT device and the DHCP device;
The communication system according to any one of appendices 1 to 3.
　（付記５）前記複数の端末と、前記複数の端末それぞれに対応する優先度情報とを管理する管理サーバを更に有し、前記第一のネットワーク装置は、前記管理サーバから、前記第一の優先度情報を取得する、付記１乃至４のいずれか一つに記載の通信システム。 (Additional remark 5) It further has a management server which manages the plurality of terminals and priority information corresponding to each of the plurality of terminals, and the first network device receives the first priority from the management server. The communication system according to any one of appendices 1 to 4, wherein degree information is acquired.
　（付記６）前記第一のネットワーク装置は、ＩＰＦＥ装置である、付記１乃至５のいずれか一つに記載の通信システム。 (Appendix 6) The communication system according to any one of appendices 1 to 5, wherein the first network device is an IPFE device.
　（付記７）前記第一の優先度情報とは、前記第一の端末のＤＳＣＰ値である、付記１乃至６のいずれか一つに記載の通信システム。 (Supplementary note 7) The communication system according to any one of supplementary notes 1 to 6, wherein the first priority information is a DSCP value of the first terminal.
　（付記８）前記保守装置とは、ウェブポータル装置である、付記１乃至７のいずれか一つに記載の通信システム。 (Supplementary note 8) The communication system according to any one of supplementary notes 1 to 7, wherein the maintenance device is a web portal device.
　（付記９）集約された複数の端末に対して通信サービスを提供する通信システムにおけるネットワーク装置であって、前記複数の端末に含まれる第一の端末から、前記ネットワーク装置の保守処理の要求に関する第一のメッセージを受信する受信部と、前記受信部が前記第一のメッセージを受信したとき、前記第一の端末に対応する第一の優先度情報が付与された第二のメッセージを生成するメッセージ生成部と、前記第二のメッセージを、前記保守処理を実行する保守装置に送信する送信部と、を有する、ネットワーク装置。 (Supplementary note 9) A network device in a communication system that provides communication services to a plurality of aggregated terminals, wherein a first request from the first terminal included in the plurality of terminals relates to a request for maintenance processing of the network device. A receiving unit that receives one message, and a message that generates a second message to which first priority information corresponding to the first terminal is assigned when the receiving unit receives the first message. A network device comprising: a generation unit; and a transmission unit that transmits the second message to a maintenance device that executes the maintenance process.
　（付記１０）前記通信システムは、前記複数の端末と前記複数の端末それぞれに対応する優先度情報とを管理する管理サーバを有し、前記第一のネットワーク装置は、前記管理サーバから、前記第一の優先度情報を取得する、付記９に記載のネットワーク装置。 (Supplementary Note 10) The communication system includes a management server that manages the plurality of terminals and priority information corresponding to each of the plurality of terminals, and the first network device receives the first information from the management server. The network device according to appendix 9, which acquires one priority information.
　（付記１１）前記ネットワーク装置は、ＩＰＦＥ装置である、付記９または１０に記載のネットワーク装置。 (Supplementary note 11) The network device according to Supplementary note 9 or 10, wherein the network device is an IPFE device.
　（付記１２）前記第一の優先度情報とは、前記第一の端末のＤＳＣＰ値である、付記９乃至１１のいずれか一つに記載のネットワーク装置。 (Supplementary note 12) The network device according to any one of supplementary notes 9 to 11, wherein the first priority information is a DSCP value of the first terminal.
　（付記１３）集約された複数の端末に対して通信サービスを提供する通信システムにおけるネットワーク装置の保守処理を実行する保守装置であって、選択部と、複数の処理実行部とを有し、前記選択部は、前記複数の端末に含まれる第一の端末が要求する保守処理に関するメッセージを受信したとき、前記メッセージに付与された、前記第一の端末に対応する第一の優先度情報に基づいて、前記複数の処理実行部の中から前記保守処理を行う処理実行部を選択する、保守装置。 (Supplementary Note 13) A maintenance device that executes maintenance processing of a network device in a communication system that provides communication services to a plurality of aggregated terminals, and includes a selection unit and a plurality of processing execution units, When the selection unit receives a message related to the maintenance process requested by the first terminal included in the plurality of terminals, the selection unit is based on the first priority information corresponding to the first terminal given to the message. A maintenance device that selects a process execution unit that performs the maintenance process from the plurality of process execution units.
　（付記１４）前記保守装置は、前記選択部が選択した処置実行部が実行した前記保守処理の結果に関する応答メッセージを前記第一の端末へ送信する送信部を有し、前記応答メッセージには、前記第一の優先度情報が付与される、付記１３に記載の保守装置。 (Supplementary Note 14) The maintenance device includes a transmission unit that transmits a response message related to a result of the maintenance process executed by the treatment execution unit selected by the selection unit to the first terminal, and the response message includes: The maintenance device according to attachment 13, to which the first priority information is assigned.
　（付記１５）前記第一の優先度情報とは、前記第一の端末のＤＳＣＰ値である、付記１３または１４に記載の保守装置。 (Supplementary note 15) The maintenance device according to Supplementary note 13 or 14, wherein the first priority information is a DSCP value of the first terminal.
　（付記１６）前記保守装置とは、ウェブポータル装置である、付記１３乃至１５のいずれか一つに記載の保守装置。 (Supplementary note 16) The maintenance device according to any one of supplementary notes 13 to 15, wherein the maintenance device is a web portal device.
　（付記１７）集約された複数の端末に対して通信サービスを提供する通信システムにおける方法であって、前記複数の端末に含まれる第一の端末から、ネットワーク装置の保守処理の要求に関する第一のメッセージを受信する工程と、前記第一のメッセージを受信したとき、前記第一の端末に対応する第一の優先度情報が付与された第二のメッセージを生成する工程と、前記第二のメッセージを送信する工程と、を有する、方法。 (Additional remark 17) It is the method in the communication system which provides a communication service with respect to the aggregated several terminal, Comprising: The 1st regarding the request | requirement of the maintenance process of a network apparatus from the 1st terminal contained in the said several terminal Receiving a message; generating a second message with first priority information corresponding to the first terminal when the first message is received; and the second message Transmitting the method.
　（付記１８）前記第二のメッセージを受信したとき、前記第一の優先度情報に基づいて、複数の処理実行部の中から、前記保守処理を行う処理実行部を選択する工程を有する、付記１７に記載の方法。 (Additional remark 18) It has a process which selects the process execution part which performs the said maintenance process from several process execution part based on said 1st priority information, when receiving said 2nd message. 18. The method according to 17.
　（付記１９）選択された前記処置実行部が実行した前記保守処理の結果に関する第三のメッセージを送信する工程を有し、前記第三のメッセージには、前記第一の優先度情報が付与される、付記１８に記載の方法。 (Additional remark 19) It has the process of transmitting the 3rd message regarding the result of the said maintenance process which the said said treatment execution part performed, Said 1st priority information is provided to the said 3rd message The method according to appendix 18.
　（付記２０）前記複数の端末と、前記複数の端末それぞれに対応する優先度情報とを管理する管理サーバから、前記第一の優先度情報を取得する工程を有する、付記１７乃至１９のいずれか一つに記載の方法。 (Supplementary note 20) Any one of Supplementary notes 17 to 19, including a step of acquiring the first priority information from a management server that manages the plurality of terminals and priority information corresponding to each of the plurality of terminals. The method according to one.
　（付記２１）前記第一のネットワーク装置は、ＩＰＦＥ装置である、付記１７乃至２０のいずれか一つに記載の方法。 (Supplementary note 21) The method according to any one of supplementary notes 17 to 20, wherein the first network device is an IPFE device.
　（付記２２）前記第一の優先度情報とは、前記第一の端末のＤＳＣＰ値である、付記１７乃至２１のいずれか一つに記載の方法。 (Supplementary note 22) The method according to any one of supplementary notes 17 to 21, wherein the first priority information is a DSCP value of the first terminal.
　（付記２３）集約された複数の端末に対して通信サービスを提供する通信システムにおいて、前記複数の端末に含まれる第一の端末から、ネットワーク装置の保守処理の要求に関する第一のメッセージを受信する工程と、前記第一のメッセージを受信したとき、前記第一の端末に対応する第一の優先度情報が付与された第二のメッセージを生成する工程と、前記第二のメッセージを送信する工程と、をコンピュータに実行させる、プログラム。 (Supplementary Note 23) In a communication system that provides communication services to a plurality of aggregated terminals, a first message regarding a request for maintenance processing of a network device is received from a first terminal included in the plurality of terminals. When receiving the first message, generating a second message to which the first priority information corresponding to the first terminal is assigned, and transmitting the second message A program that causes a computer to execute.
　（付記２４）コンピュータに読み取り可能な情報記憶媒体であって、付記２３に記載のプログラムを記録する記録媒体。 (Appendix 24) A computer-readable information storage medium that records the program described in Appendix 23.
　以上、上述した実施形態を模範的な例として本発明を説明した。しかしながら、本発明は、上述した実施形態には限定されない。即ち、本発明は、本発明のスコープ内において、当業者が理解し得る様々な態様を適用することができる。 The present invention has been described above using the above-described embodiment as an exemplary example. However, the present invention is not limited to the above-described embodiment. That is, the present invention can apply various modes that can be understood by those skilled in the art within the scope of the present invention.
　この出願は、２０１５年９月２９日に出願された日本出願特願２０１５－１９０８５２を基礎とする優先権を主張し、その開示の全てをここに取り込む。 This application claims priority based on Japanese Patent Application No. 2015-190852 filed on September 29, 2015, the entire disclosure of which is incorporated herein.
　１０、２０、３０　　通信システム
　１００１～１００Ｍ、３００１～３００Ｌ　ユーザ端末
　１０１　　ネットワーク装置
　２００、３０５　　ウェブポータル装置
　２０１、３１３　　選択部
　２０２１～２０２Ｎ　　処理実行部
　３０１１～３０１ｍ　　ＣＰＥ
　３０２　　ＩＰＦＥ装置
　３０３　　ＮＡＴ装置
　３０４　　ＤＨＣＰ装置
　３０６　　管理サーバ
　３０７　　負荷分散サーバ
　３０８１～３０８ｎ　　フロントエンドサーバ
　３０９１～３０９ｎ　　ビジネスロジックサーバ
　３１０　　データベースサーバ
　３１１　　ＨＴＴＰ送受信部
　３１２　　判別部
　３１４　　通信部 10, 20, 30 Communication system 100 1 to 100 M , 300 1 to 300 L User terminal 101 Network device 200, 305 Web portal device 201, 313 Selection unit 202 1 to 202 N processing execution unit 301 1 to 301 m CPE
302 IPFE device 303 NAT device 304 DHCP device 306 Management server 307 Load distribution server 308 1 to 308 n Front end server 309 1 to 309 n Business logic server 310 Database server 311 HTTP transmission / reception unit 312 Discrimination unit 314 Communication unit

Claims (10)

  1. 　集約された複数の端末に対して通信サービスを提供する通信システムであって、
    　第一のネットワーク装置と、
    　前記第一のネットワーク装置の保守処理を実行する保守装置と、を有し、
    　前記第一のネットワーク装置は、前記複数の端末に含まれる第一の端末から、前記保守処理の要求に関する第一のメッセージを受信したとき、前記第一の端末に対応する第一の優先度情報が付与された第二のメッセージを生成し、前記第二のメッセージを前記保守装置に送信する、通信システム。     A communication system that provides communication services to a plurality of aggregated terminals,
    A first network device;
    A maintenance device that executes maintenance processing of the first network device,
    When the first network device receives a first message related to the maintenance processing request from a first terminal included in the plurality of terminals, first priority information corresponding to the first terminal Is generated, and the second message is transmitted to the maintenance device.
  2. 　前記保守装置は、選択手段と、複数の処理実行手段とを有し、
    　前記選択手段は、前記第二のメッセージを受信したとき、前記第一の優先度情報に基づいて、前記複数の処理実行手段の中から、前記保守処理を行う処理実行手段を選択する、請求項１に記載の通信システム。     The maintenance device includes a selection unit and a plurality of processing execution units,
    The selection means, when receiving the second message, selects a process execution means for performing the maintenance process from the plurality of process execution means based on the first priority information. The communication system according to 1.
  3. 　前記保守装置は、前記選択手段によって選択された処置実行手段が実行した前記保守処理の結果に関する第三のメッセージを、前記第一の端末へ送信する送信手段を有し、
    　前記第三のメッセージには、前記第一の優先度情報が付与される、請求項２に記載の通信システム。     The maintenance device includes a transmission unit that transmits a third message related to a result of the maintenance process executed by the treatment execution unit selected by the selection unit to the first terminal,
    The communication system according to claim 2, wherein the first priority information is given to the third message.
  4. 　前記第一のネットワーク装置の他に複数のネットワーク装置を更に有し、
    　前記複数のネットワーク装置は、前記複数の端末の通信におけるＮＡＴ変換を行うＮＡＴ装置と、前記複数の端末のＤＨＣＰ情報を管理するＤＨＣＰ装置を含み、
    　前記保守装置は、前記ＮＡＴ装置及び前記ＤＨＣＰ装置の保守処理を更に実行する、
    請求項１乃至３のいずれか一項に記載の通信システム。     In addition to the first network device, further comprising a plurality of network devices,
    The plurality of network devices include a NAT device that performs NAT conversion in communication of the plurality of terminals, and a DHCP device that manages DHCP information of the plurality of terminals,
    The maintenance device further executes maintenance processing of the NAT device and the DHCP device.
    The communication system according to any one of claims 1 to 3.
  5. 　前記第一のネットワーク装置は、ＩＰＦＥ装置である、請求項１乃至４のいずれか一項に記載の通信システム。 The communication system according to any one of claims 1 to 4, wherein the first network device is an IPFE device.
  6. 　前記第一の優先度情報とは、前記第一の端末のＤＳＣＰ値である、請求項１乃至５のいずれか一項に記載の通信システム。 The communication system according to any one of claims 1 to 5, wherein the first priority information is a DSCP value of the first terminal.
  7. 　前記保守装置とは、ウェブポータル装置である、請求項１乃至６のいずれか一項に記載の通信システム。 The communication system according to any one of claims 1 to 6, wherein the maintenance device is a web portal device.
  8. 　集約された複数の端末に対して通信サービスを提供する通信システムにおけるネットワーク装置であって、
    　前記複数の端末に含まれる第一の端末から、前記ネットワーク装置の保守処理の要求に関する第一のメッセージを受信する受信手段と、
    　前記受信手段が前記第一のメッセージを受信したとき、前記第一の端末に対応する第一の優先度情報が付与された第二のメッセージを生成するメッセージ生成手段と、
    　前記第二のメッセージを、前記保守処理を実行する保守装置に送信する送信手段と、を有する、ネットワーク装置。     A network device in a communication system that provides communication services to a plurality of aggregated terminals,
    Receiving means for receiving, from a first terminal included in the plurality of terminals, a first message relating to a request for maintenance processing of the network device;
    Message generating means for generating a second message to which first priority information corresponding to the first terminal is given when the receiving means receives the first message;
    A network device, comprising: a transmission unit configured to transmit the second message to a maintenance device that executes the maintenance process.
  9. 　集約された複数の端末に対して通信サービスを提供する通信システムにおけるネットワーク装置の保守処理を実行する保守装置であって、
    　選択手段と、複数の処理実行手段とを有し、
    　前記選択手段は、前記複数の端末に含まれる第一の端末が要求する保守処理に関するメッセージを受信したとき、前記メッセージに付与された、前記第一の端末に対応する第一の優先度情報に基づいて、前記複数の処理実行手段の中から前記保守処理を行う処理実行手段を選択する、保守装置。     A maintenance device that executes maintenance processing of a network device in a communication system that provides communication services to a plurality of aggregated terminals,
    A selection unit and a plurality of processing execution units;
    When the selection unit receives a message related to the maintenance process requested by the first terminal included in the plurality of terminals, the selection unit adds the first priority information corresponding to the first terminal assigned to the message. A maintenance apparatus that selects a process execution unit for performing the maintenance process from the plurality of process execution units.
  10. 　集約された複数の端末に対して通信サービスを提供する通信システムにおける方法であって、
    　前記複数の端末に含まれる第一の端末から、ネットワーク装置の保守処理の要求に関する第一のメッセージを受信し、
    　前記第一のメッセージを受信したとき、前記第一の端末に対応する第一の優先度情報が付与された第二のメッセージを生成し、
    　前記第二のメッセージを送信する方法。     A method in a communication system for providing a communication service to a plurality of aggregated terminals,
    Receiving from the first terminal included in the plurality of terminals a first message relating to a network device maintenance processing request;
    When receiving the first message, generate a second message with the first priority information corresponding to the first terminal,
    A method of transmitting the second message.
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