WO2010034214A1 - Procédé d’installation d’un élément de réseau, élément de réseau, serveur dhcp et système de réseau - Google Patents

Procédé d’installation d’un élément de réseau, élément de réseau, serveur dhcp et système de réseau Download PDF

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Publication number
WO2010034214A1
WO2010034214A1 PCT/CN2009/073043 CN2009073043W WO2010034214A1 WO 2010034214 A1 WO2010034214 A1 WO 2010034214A1 CN 2009073043 W CN2009073043 W CN 2009073043W WO 2010034214 A1 WO2010034214 A1 WO 2010034214A1
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WO
WIPO (PCT)
Prior art keywords
network element
network
dhcp server
network management
dhcp
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Application number
PCT/CN2009/073043
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English (en)
Chinese (zh)
Inventor
陈建群
乔黔
陈昀
刘峰
李晓东
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2010034214A1 publication Critical patent/WO2010034214A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/50—Address allocation
    • H04L61/5007—Internet protocol [IP] addresses
    • H04L61/5014—Internet protocol [IP] addresses using dynamic host configuration protocol [DHCP] or bootstrap protocol [BOOTP]

Definitions

  • Network element installation method Network element, network element, DHCP server and network system
  • the present invention relates to the field of communications, and in particular, to a method for installing a network element, a network element, a DHCP server, and a network system. Background technique
  • the installation of the network element is a very expensive part of the network construction process.
  • the software personnel complete the initial configuration of the network element.
  • the initial configuration of the network element is complicated. At present, operators have requested that the network element installation can achieve one inbound completion. One pit stop means that the installation of the network element can be completed by an engineering personnel once at the site. Therefore, how to implement automatic configuration and installation of network elements becomes the key to a one-stop installation.
  • the automatic configuration scheme adopted by the industry mostly uses the Dynamic Host Configuration Protocol (DHCP) for interaction, and uses the serial number SN/KEY for authentication.
  • the network element sends a DHCP client request (DHCP client request) to the DHCP server through the service interface to request the initial configuration.
  • DHCP server is a logical concept. It can be integrated on other network elements, such as the gateway network element. Is a separate server.
  • the DHCP client request may use the SN of the NE as the unique identifier, or may use the KEY input by the engineering personnel as the unique identifier, and transmit it through the Option field in the DHCP Protocol Data Unit (DHCP PDU).
  • DHCP PDU DHCP Protocol Data Unit
  • the DHCP server After receiving the DHCP client request, the DHCP server authenticates the SN/KEY in the request. If the authentication succeeds, it returns a DHCP server response packet (DHCP sever response packet) to the network element.
  • the network structure of operators is diverse, and it is required to support some network elements to access through third-party networks and to perform unified management.
  • Accessing through a third-party network is a concept that is independent of the self-organizing network.
  • the self-organizing network means that all network elements, including the network element to be installed, the gateway network element, and the DHCP server, are all inside a carrier network and are connected through a third-party network.
  • the DHCP server also Located in this other carrier network.
  • it is an ad hoc network or a third-party network, it can be a Layer 2 network, that is, packets are forwarded at Layer 2 or Layer 3 networks, that is, packets are forwarded at Layer 3.
  • the embodiment of the invention provides a network element installation method, a network element, a DHCP server and a network system, which can implement the installation of a single inbound network element in a simple, convenient, flexible and low-cost manner, and can support the third-party network scenario.
  • One inbound network element installation is provided.
  • a method for installing a network element according to an embodiment of the present invention includes:
  • the embodiment of the invention further provides a network element, where the network element includes:
  • a first sending module configured to send a DHCP client request message to the DHCP server, where the DHCP client request message carries the hardware address of the network management interface of the network element to be installed;
  • a first receiving module configured to receive a DHCP server response message returned by the DHCP server, where the DHCP server is configured according to a hardware address of the network management interface of the network element to be installed After the network element to be installed is authenticated, the device sends a response message to the DHCP server.
  • the installation module is configured to install the network element to be installed according to the configuration information carried in the response message of the DHCP server.
  • the invention also provides a DHCP server, the server comprising:
  • a receiving module configured to receive a DHCP client request packet sent by the network element to be installed, where the DHCP client request packet carries a hardware address of the network management interface of the network element to be installed;
  • An authentication module configured to authenticate the to-be-installed network element according to the hardware address of the network management interface of the network element to be installed;
  • a sending module configured to send a DHCP server response message to the to-be-installed network element after the authentication module passes the authentication of the to-be-installed network element.
  • the embodiment of the invention further provides a network system, where the network system includes a network element to be installed and a DHCP server, where:
  • the network element to be installed is configured to send a DHCP client request message to the DHCP server, where the DHCP client request message carries the hardware address of the network management interface of the network element to be installed;
  • the DHCP server is configured to authenticate the network element to be installed according to the hardware address of the network management interface of the network element to be installed.
  • the embodiment of the present invention does not require the network element to store an additional SN number, and does not require the engineering personnel to input the KEY parameter on site, thereby reducing the manufacturing cost and installation cost of the network element.
  • the communication line carrying the management information can be inserted into any service interface, which also improves the flexibility of the engineering installation. It also supports one-stop network element installation in a third-party network scenario.
  • FIG. 1 is a flowchart of a method for installing a network element according to an embodiment of the present invention
  • FIG. 2 is a packet for obtaining configuration information by sending a DHCP client request according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a format of a DHCP PDU according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a network element to be installed according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a network according to another embodiment of the present invention.
  • FIG. 6 is a timing diagram of a communication data flow of a network element installation method according to another embodiment of the present invention
  • FIG. 7 is a schematic diagram of a network according to another embodiment of the present invention.
  • FIG. 8 is a timing diagram of a communication data flow of a network element installation method according to another embodiment of the present invention
  • FIG. 9 is a schematic diagram of a network element according to an embodiment of the present invention.
  • FIG. 10 is a schematic diagram of a network element according to another embodiment of the present invention.
  • FIG. 11 is a schematic diagram of a DHCP server according to an embodiment of the present invention.
  • FIG. 12 is a schematic diagram of a DHCP server according to another embodiment of the present invention.
  • FIG. 13 is a schematic diagram of a network system according to an embodiment of the present invention.
  • FIG. 14 is a schematic diagram of a network system according to another embodiment of the present invention. detailed description
  • An embodiment of the present invention provides a network element installation method, a network element, and a network system, where the method includes: sending a DHCP client request message to a DHCP server, where the DHCP client request message carries the network element to be installed a network management interface hardware address; receiving a DHCP server response message returned by the DHCP server, where the DHCP server returns to the network element according to the hardware management address of the network management interface to be installed, and then returns the The DHCP server responds to the message; the network element to be installed is installed according to the configuration information carried in the response message of the DHCP server, and the inbound network element installation can be implemented simply, conveniently, flexibly, and at low cost, and can support the punch-through number.
  • FIG. 1 is a schematic flowchart of a method according to an embodiment of the present invention.
  • the method includes: 101: Sending a DHCP client request packet to a DHCP server, where the DHCP client request packet carries the network management of the network element to be installed. Interface hardware address;
  • the packet is a broadcast packet.
  • the DHCP relay agent receives the broadcast packet, the DHCP relay agent receives the broadcast packet.
  • the broadcast packet is converted into a unicast packet and sent to the DHCP server (DHCP sever).
  • Figure 2 shows the packet encapsulation format of a DHCP client requesting configuration information.
  • the destination address of the link layer protocol is filled with the broadcast MAC address, and the source address SMAC is filled with the MAC address of the service interface for sending packets.
  • the format of the DHCP PDU is shown in Figure 3.
  • the "Chaddr" field in the DHCP PDU is the client.
  • the hardware address (client hardware address) field is filled in with the hardware address of the network management interface of the network element to be installed.
  • the schematic diagram of the network element to be installed includes a network management interface 41 and n service interfaces 42, a service module 43, and a management module 44.
  • the service module 43 performs the processing of the service through the service interface 42.
  • the network management system directly connects to the network element through the network management interface for management, that is, the management module 44 and the network management interface 41 are connected.
  • the network element is generally managed by transmitting the management message through the service interface 42, that is, the management module 44 and the service interface 42 are connected.
  • the hardware address of the network management interface is filled in the "Chaddr" field, and the hardware address of the network management interface may be a network management interface MAC address or other hardware address, which is not limited by the present invention. Since hardware address allocation is globally unique, it is guaranteed that it will not conflict with other addresses.
  • the management module 44 of the network element shown in FIG. 4 sends a DHCP client request through any service interface 42
  • the "Chaddr" field in the DHCP PDU fills in the MAC address "MAC0" of the network management interface 41.
  • the DHCP server and the network management only need to store a network management interface hardware address, and do not need to store each service interface.
  • the MAC address also reduces the workload of the authentication comparison.
  • the number of service interfaces of a network element to be installed When the amount is large, the beneficial effect is more significant, and the engineering personnel can insert the communication line carrying the management information into any service interface when installing, which also improves the flexibility of the engineering installation.
  • Step 102 Receive a DHCP server response message returned by the DHCP server, where the DHCP server returns a response to the DHCP server according to the hardware address of the network management interface of the network element to be installed. Message
  • the DHCP server stores the pre-planned network management interface hardware address and configuration information of the corresponding service interface. If the NE to be installed is connected to the gateway NE through a third-party network, the DHCP server is also located in the third-party network. The DHCP server also stores the configuration information required for the NE to pass through the third-party network.
  • the DHCP server After receiving the DHCP client request packet, the DHCP server compares the hardware address of the network management interface of the network element to be installed carried in the "chaddr" field of the packet with the hardware address of the network management interface of the network element to be installed.
  • the NE is authenticated. After the authentication is passed, the DHCP server response packet is sent to the NE to be installed.
  • the DHCP server response packet carries the DCN (Data Communication Network) configuration information and the gateway NE corresponding to the NE to be installed. IP address, etc. If the NE to be installed is connected to the gateway NE through a third-party network, the DHCP server response packet carries the configuration information required for the NE to be installed through the third-party network.
  • DCN Data Communication Network
  • the DHCP server responds.
  • the packet carries the IP address of the service interface of the NE to be installed.
  • the DHCP server response message has the same format as the DHCP client request message, and the information to be returned can be carried in the Options field of the DHCP PDU, which is not limited in this embodiment of the present invention.
  • the DHCP relay agent encapsulates the link layer destination address DMAC of the DHCP server response message according to the content of the client hardware address Chaddr field of the DHCP PDU, and fills in the link layer destination address DMAC of the DHCP server response message as the to-be-installed network.
  • the network management interface hardware address of the element is not limited to the content of the client hardware address Chaddr field of the DHCP PDU.
  • the network element to be installed receives DHCP through a service interface that sends a DHCP client request packet.
  • Server response message ;
  • the network element service interface to be installed not only identifies the MAC address of the interface but also identifies the network management Interface hardware address to receive management packets entering from this interface.
  • the network management interface hardware address may be stored in the network element, or the service interface may directly go to the network management interface to read the network management interface hardware address, which is not limited by the embodiment of the present invention, and various specific implementation manners are protected by the present invention.
  • Determining by comparing the link layer destination address of the received DHCP server response packet with the stored or read network management interface hardware address of the to-be-installed network element, determining a link layer of the DHCP server response packet Whether the destination address is the hardware address of the network management interface of the NE to be installed.
  • the network element to be installed is configured according to the configuration information in the response message of the DHCP server, and may be configured by the management module of the network element to be installed according to the configuration information in the response message of the DHCP server;
  • the network element to be installed sends a network management connection confirmation request message to the network management system. Specifically, after the network element to be installed is configured according to the configuration information in the response message of the DHCP server, the network element is sent to the gateway network element. After receiving the NMS connection confirmation request packet of the NE to be installed, the gateway NE applies to the NMS for authentication.
  • the network management connection request message carries the network management interface hardware address of the network element to be installed.
  • the network management connection confirmation request packet may be an IP packet, and the network management interface hardware address of the network element to be installed is carried in the payload area of the IP packet, and may also be other packets, which is in the embodiment of the present invention. This is not limited;
  • the network management system Receiving, by the network management system, the hardware address of the network management interface of the network element to be installed on the network to be installed After the acknowledgment information is passed, the network element to be installed is connected to the network management system.
  • the network management system stores the pre-planned network element identifier to be installed.
  • the embodiment of the present invention is a network management interface hardware address and corresponding authentication information. Specifically, after the network management device authenticates the network management interface address of the network element to be installed carried in the request packet, the network management system returns the confirmation information to the gateway network element, and the gateway network element returns a confirmation message to the network element to be installed. After receiving the confirmation information of the gateway NE, the device indicates that the device has been connected to the NMS in some way. The installation is successful.
  • the indication methods include, but are not limited to, lighting the panel indicator, the horn sounding indication, and indicating through the LCD.
  • a method for installing a network element in the embodiment of the present invention does not require the network element to store an additional SN number, and does not require the engineering personnel to input the KEY parameter on site, thereby reducing the manufacturing cost and installation cost of the network element.
  • the communication line carrying the management information can be inserted into any service interface, which also improves the flexibility of engineering installation. Moreover, it can support one inbound network element installation in a third-party network scenario.
  • the network diagram is shown in another embodiment of the present invention.
  • the remote NE to be installed passes through a third-layer third-party network, which may be a third-party IP network or other three-layer network.
  • a three-party network that connects to the gateway network element.
  • the DHCP server stores the pre-planned network element identifiers to be installed.
  • the network management interface hardware address and the network element are required to pass through the third-party network configuration information and other configuration information.
  • the DHCP relay agent After receiving the broadcast request message, the DHCP relay agent converts the broadcast request message into a unicast message and sends the message to the DHCP server.
  • the DHCP server After receiving the DHCP client request message, the DHCP server obtains the network management interface hardware address of the network element to be installed and the stored network to be installed according to the "chaddr" field of the request message. The hardware address of the network management interface of the element is compared, and the network element to be installed is authenticated. After the authentication is passed, the device returns.
  • the DHCP server responds to the packet, and carries the IP address of the service interface of the network element to be installed in the response message of the DHCP server, the configuration information of the third-party network, the IP address of the gateway network element, and the configuration information of the DCN.
  • the DHCP relay agent returns the DHCP server response message to the network element to be installed.
  • 605 After the network element to be installed completes the configuration according to the configuration information in the response message of the DHCP server, the network management device sends a network management connection confirmation request message to the gateway network element. ;
  • the gateway network element After receiving the network management connection confirmation request message of the network element to be installed, the gateway network element applies for authentication to the network management.
  • the network management device After the network management device authenticates the hardware address of the network management interface of the network element to be installed carried in the packet, the network management device returns a confirmation information to the gateway network element.
  • the gateway network element returns a confirmation message to the network element to be installed.
  • the network element to be installed receives the confirmation information of the gateway network element, the network element is connected to the network management system in a certain manner, and the installation is successful.
  • the indication methods include, but are not limited to, lighting the panel indicator, the horn sounding indication, and indicating through the liquid crystal display.
  • a method for installing a network element in the embodiment of the present invention does not require the network element to store an additional SN number, and does not require the engineering personnel to input the KEY parameter on site, thereby reducing the manufacturing cost and installation cost of the network element.
  • the communication line carrying the management information can be inserted into any service interface, which also improves the flexibility of engineering installation. Moreover, it can support one inbound network element installation in a third-party network scenario.
  • a network diagram is shown in another embodiment of the present invention.
  • a remote NE to be installed is connected to a gateway network element through a carrier layer 2 self-component group network.
  • the network server has a pre-planned network element identifier to be installed on the DHCP server.
  • the embodiment of the present invention is a network management interface hardware address and configuration information, and the network management system stores a pre-planned network element identifier to be installed. Interface hardware address, and corresponding authentication information.
  • the DHCP relay agent After receiving the broadcast request message, the DHCP relay agent converts the broadcast request message into a unicast message and sends the message to the DHCP server.
  • the DHCP server After receiving the DHCP client request message, the DHCP server compares the hardware address of the network management interface of the network element to be installed carried in the "chaddr" field of the request message with the hardware address of the network management interface of the network element to be installed. The network element is installed for authentication. After the authentication is passed, the DHCP server responds to the packet, and the DHCP server response packet carries the IP address of the gateway NE corresponding to the NE to be installed, and the DCN configuration information.
  • the DHCP relay agent returns the DHCP server response packet to the network element to be installed.
  • the network management system After the network element to be installed is configured according to the configuration information in the response message of the DHCP server, the network management system sends a confirmation message to the gateway network element.
  • the gateway network element After receiving the network management connection confirmation request packet of the network element to be installed, the gateway network element applies for authentication to the network management.
  • the network management device After the network management device authenticates the hardware address of the network management interface of the network element to be installed carried in the packet, the network management device returns a confirmation message to the gateway network element.
  • the gateway network element returns a confirmation message to the network element to be installed.
  • the network element to be installed receives the confirmation information of the gateway network element, the network element is connected to the network management system in a certain manner, and the installation is successful.
  • the indication methods include, but are not limited to, lighting the panel indicator, the horn sounding indication, and indicating through the liquid crystal display.
  • a method for installing a network element in the embodiment of the present invention does not require the network element to store an additional SN number, and does not require the engineering personnel to input the KEY parameter on site, thereby reducing the manufacturing cost and installation cost of the network element.
  • the communication line carrying the management information can be inserted into any service interface, which also improves the flexibility of engineering installation.
  • Embodiment 4 As shown in FIG. 9, a network element is provided in the embodiment of the present invention.
  • the network element includes: a first sending module 91, configured to send a DHCP client request packet to a DHCP server, where the DHCP client request packet carries The hardware address of the network management interface of the network element to be installed;
  • the first receiving module 92 is configured to receive the DHCP server response message returned by the DHCP server, where the DHCP server authenticates the to-be-installed network element according to the hardware address of the network management interface of the network element to be installed. Returning the DHCP server response message;
  • the installation module 93 is configured to install the to-be-installed network element according to the configuration information carried in the DHCP server response packet.
  • the network element includes a first sending module 91, a first receiving module 92, and an installation included in the network element of the embodiment shown in FIG. Outside the module 93, the network element further includes:
  • the determining module 104 is configured to determine whether the link layer destination address of the DHCP server response packet is a network management interface hardware address of the network element to be installed.
  • the installation module 93 is configured to install the network element to be installed according to the configuration information carried in the response message of the DHCP server when the determination result of the determination module 104 is YES.
  • a configuration module configured to perform configuration according to configuration information in the response message of the DHCP server
  • a second sending module configured to send a network management connection confirmation request message to the network management, where the network management connection confirmation request message carries the hardware address of the network management interface of the network element to be installed;
  • a second receiving module configured to receive, by the network management device, the confirmation information that the network element to be installed is authenticated according to the hardware address of the network management interface of the network element to be installed;
  • the indication module is configured to: after the second receiving module receives the confirmation information, instruct the network element to be installed to communicate with the network management.
  • a network element in the embodiment of the present invention does not require the network element to store an additional SN number, and does not require an engineer to input the KEY parameter on site, thereby reducing the manufacturing cost and installation cost of the network element.
  • the communication line carrying the management information can be inserted into any service interface, which also improves the flexibility of the engineering installation. Moreover, it can support one inbound network element installation in a third-party network scenario.
  • a DHCP server is provided in the embodiment of the present invention, where the DHCP server includes:
  • the receiving module 111 is configured to receive a DHCP client request packet sent by the network element to be installed, where the DHCP client request packet carries the hardware address of the network management interface of the network element to be installed.
  • the authentication module 112 is configured to authenticate the network element to be installed according to the hardware address of the network management interface of the network element to be installed.
  • the sending module 113 is configured to send a DHCP server response message to the to-be-installed network element after the authentication module 112 authenticates the to-be-installed network element.
  • a DHCP server is provided in the DHCP server.
  • the DHCP server includes the receiving module 111, the authentication module 112, and the sending module 113 included in the DHCP server of the previous embodiment. Also includes:
  • the storage module 124 is configured to store a network management interface hardware address of the network element to be installed
  • the authentication module 112 is configured to: according to the network management interface hardware address of the network element to be installed carried in the DHCP client request message, The hardware address of the network management interface of the network element to be installed stored in the storage module is compared, and the network element to be installed is authenticated.
  • a DHCP server in the embodiment of the present invention does not require the network element to store an additional SN number, and does not require an engineer to input the KEY parameter on site, thereby reducing the manufacturing cost and installation cost of the network element.
  • the communication line carrying the management information can be inserted into any service interface, which also improves the flexibility of the engineering installation. Moreover, it can support one inbound network element installation in a third-party network scenario.
  • a network system is provided in the embodiment of the present invention, where the network system includes a network element 131 to be installed and a DHCP server 132, where:
  • the network element 131 to be installed is configured to send a DHCP client request message to the DHCP server, where the DHCP client request message carries the network management interface hardware address of the network element to be installed; the DHCP server 132 is configured to use The network management interface hardware address of the network element to be installed authenticates the network element to be installed.
  • the system includes a network element to be installed and a DHCP server, including the network management unit 143, where the system includes a network management unit 143, where:
  • the network element 131 to be installed is further configured to: after receiving the DHCP sever response message sent by the DHCP server, the configuration is performed according to the configuration information in the response message of the DHCP server, and is used to The network management system 143 sends a network management connection confirmation request message, where the network management connection confirmation request message carries the hardware address of the network management interface of the network element to be installed.
  • the network management system 143 is configured to authenticate the network element to be installed according to the hardware address of the network management interface of the network element to be installed.
  • a network system of the embodiment of the present invention does not require the network element to store an additional SN number, and does not require an engineer to input the KEY parameter on site, thereby reducing the manufacturing cost and installation cost of the network element.
  • the communication line carrying the management information can be inserted into any service interface, which also improves the flexibility of the engineering installation.
  • it can support one inbound network element installation in a third-party network scenario. All or part of the technical solutions provided by the above embodiments may be implemented by software programming, and the software program is stored in a readable storage medium such as a hard disk, an optical disk or a floppy disk in a computer.

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

L’invention concerne un procédé d’installation d’un élément de réseau, le procédé comprenant les étapes consistant à : transmettre à un serveur DHCP un message de demande de client DHCP contenant une adresse de matériel d’administrateur de réseau associée à un élément de réseau à installer ; recevoir du serveur DHCP un message de réponse de serveur DHCP, le message de réponse de serveur DHCP étant renvoyé après authentification et acceptation de l’élément de réseau à installer par le serveur DHCP en fonction de l’adresse de matériel d’administrateur de réseau ; installer l’élément de réseau à installer en fonction d’une information de configuration contenue dans le message de réponse de serveur DHCP.
PCT/CN2009/073043 2008-09-27 2009-08-03 Procédé d’installation d’un élément de réseau, élément de réseau, serveur dhcp et système de réseau WO2010034214A1 (fr)

Applications Claiming Priority (2)

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CN2008102165145A CN101686150B (zh) 2008-09-27 2008-09-27 一种网元的安装方法、网元、dhcp服务器和网络系统
CN200810216514.5 2008-09-27

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CN105933142A (zh) * 2016-04-08 2016-09-07 邦彦技术股份有限公司 网元管理的方法及装置
CN109218055B (zh) * 2017-07-04 2021-07-30 上海诺基亚贝尔软件有限公司 一种快速配置网元设备进行即插即用的方法和装置
CN109039719B (zh) * 2018-07-20 2022-02-08 安徽皖通邮电股份有限公司 一种实现cpe设备自开通的方法

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