WO2017114157A1 - 一种在光接入网中建立虚拟接入节点的方法和设备 - Google Patents

一种在光接入网中建立虚拟接入节点的方法和设备 Download PDF

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Publication number
WO2017114157A1
WO2017114157A1 PCT/CN2016/109931 CN2016109931W WO2017114157A1 WO 2017114157 A1 WO2017114157 A1 WO 2017114157A1 CN 2016109931 W CN2016109931 W CN 2016109931W WO 2017114157 A1 WO2017114157 A1 WO 2017114157A1
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Prior art keywords
identifier
virtual
line
configuration information
network
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PCT/CN2016/109931
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English (en)
French (fr)
Inventor
郑若滨
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华为技术有限公司
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Priority to EP16880947.3A priority Critical patent/EP3382909B1/en
Publication of WO2017114157A1 publication Critical patent/WO2017114157A1/zh
Priority to US16/021,405 priority patent/US10630387B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/27—Arrangements for networking
    • 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
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0895—Configuration of virtualised networks or elements, e.g. virtualised network function or OpenFlow elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46—Interconnection of networks
    • H04L12/4633—Interconnection of networks using encapsulation techniques, e.g. tunneling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46—Interconnection of networks
    • H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]
    • 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
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0893—Assignment of logical groups to network elements
    • 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]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
    • H04L63/0892—Network architectures or network communication protocols for network security for authentication of entities by using authentication-authorization-accounting [AAA] servers or protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/40—Network security protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0062—Network aspects
    • H04Q11/0067—Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/1301—Optical transmission, optical switches

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method and device for establishing a virtual access node in an optical access network.
  • FIG. 1 is a schematic diagram of a scenario of an optical access network (OAN).
  • the OAN includes: a Customer Premises Network (CPN), an Access Network, and a Service Node Function.
  • the access network includes: Optical Line Termination (OLT), Optical Distribution Network (ODN), Optical Network Unit (ONU), Optical Network Terminal (Optical Network Terminal). ONT) and access function (AF).
  • the AF mainly provides mutual conversion between the ONU/ONT interface and the User Network Interface (UNI). If the AF is built into the ONU, the access network in Figure 1 may omit the reference point identified by (a).
  • the AF can be used for mutual conversion between the OLT interface and the SNI.
  • T in Figure 1 is the reference point of the UNI interface
  • V is the reference point of the SNI interface.
  • the OLT provides a network interface for the ODN.
  • the Customer Premises Equipment is connected to the AF through a UNI interface, such as a Digital Subscriber Line (DSL).
  • the AF converts the received first packet into a second packet, where the first packet is encapsulated in a UNI interface format, and the second packet is encapsulated in (a) interface format capable of communicating with the ONU, such as Ethernet (Ethernet, ETH for short) link.
  • the ONU performs format conversion on the second packet to obtain a third packet.
  • the third packet is encapsulated in a format that can be transmitted on the ODN, such as an Ethernet Passive Optical Network (EPON) package. Or passive optical integrated access standard GPON (Gigabit-Capable PON) general framing package.
  • the OLT converts the format of the third packet, and obtains the fourth packet.
  • the fourth packet is encapsulated in an SNI interface format, such as an Ethernet link, and the fourth packet is sent to the SNF.
  • an infrastructure operator Infrustract Provider, InP
  • InP infrastructure operator
  • VNO virtual network operator
  • AN the physical access node of the InP access network
  • the embodiments of the present invention provide a method and a device for establishing a virtual access node in an optical access network, which can help the access node of the InP to be configured according to service requirements, and improve configuration flexibility.
  • a method for establishing a virtual access node in an optical access network includes:
  • the access device in the first network After receiving the first message of the user equipment, the access device in the first network acquires the identifier of the virtual line corresponding to the physical line, where the physical line is the user equipment and the physical access node in the first network. a physical line between the ANs, the virtual line being a logical line between the user equipment and the virtual AN;
  • the access device acquires configuration information from a configuration server of the second network according to the identifier of the virtual line, where the configuration information is used to create the virtual AN;
  • the access device creates the virtual AN according to the configuration information.
  • the access device obtains the identifier of the virtual line corresponding to the physical line, including:
  • the access device sends a second message to the first server of the first network, where the second message includes an identifier of the physical line;
  • the access device receives an identifier of the virtual line sent by the first server.
  • the access device obtains the identifier of the virtual line corresponding to the physical line, including:
  • the first message further includes an identifier of the second network
  • the access device obtains configuration information from a configuration server of the second network according to the identifier of the virtual line, including:
  • the access device sends a third message to the second server in the second network according to the identifier of the second network in the first message, where the third message includes an identifier of the virtual line;
  • the access device acquires the configuration information from the configuration server corresponding to the address information according to the identifier of the configuration information.
  • the method further includes:
  • the access device sends a second message to the DHCP server of the corresponding second network according to the identifier of the second network, where the second message includes an identifier of the virtual line;
  • the access device binds the IP address information to the identified identity of the physical line.
  • the access device creates a virtual AN corresponding to the virtual line according to the configuration information, and further includes:
  • the access device creates a virtual AN corresponding to the virtual line according to the configuration information, and further includes:
  • the method further includes:
  • the access device establishes a channel between the physical AN and the virtual AN for communication.
  • a method for establishing a virtual access node in an optical access network includes:
  • the configuration server in the second network obtains configuration information according to the identifier of the virtual line, where the virtual line is a logical line between the user equipment and the virtual access node AN, and the configuration information is used to create the virtual AN;
  • the configuration server sends the configuration information to an access device of the first network.
  • the configuration server in the second network obtains configuration information according to the identifier of the virtual line, including:
  • the configuration server receives an identifier of the virtual line sent by the access device
  • the configuration server obtains the configuration information according to the first correspondence and the identifier of the virtual line, where the first correspondence includes the configuration information and an identifier of the virtual line.
  • the configuration server in the second network obtains configuration information according to the identifier of the virtual line, including:
  • the configuration server receives an identifier of the configuration information sent by the access device, where the identifier of the configuration information is information obtained according to the second correspondence and the identifier of the virtual line, where the second correspondence includes the virtual The identification of the line and the identification of the configuration information;
  • the configuration server obtains the configuration information according to the third correspondence and the identifier of the configuration information, where the third correspondence includes the configuration information and the identifier of the configuration information.
  • an access device is applied to a first network, where the access device includes:
  • a first acquiring module configured to acquire, after receiving the first message of the user equipment, an identifier of a virtual line corresponding to the physical line, where the physical line is the user equipment and a physical access node AN in the first network Between the physical lines, the virtual line is a logical line between the user equipment and the virtual AN;
  • a second obtaining module configured to acquire configuration information from a configuration server of the second network according to the identifier of the virtual line, where the configuration information is used to create the virtual AN;
  • a creating module configured to create the virtual AN according to the configuration information.
  • the first acquiring module is specifically configured to:
  • the first acquiring module is specifically configured to:
  • the first message further includes an identifier of the second network, where the second acquiring module is specifically configured to:
  • a server is applied to a second network, the server comprising:
  • An acquiring module configured to obtain configuration information according to the identifier of the virtual line, where the virtual line is a logical line between the user equipment and the virtual access node AN, and the configuration information is used to create the virtual AN;
  • a sending module configured to send the configuration information to an access device of the first network.
  • the acquiring module is specifically configured to:
  • the acquiring module is specifically configured to:
  • the identifier of the configuration information is information obtained according to the second correspondence and the identifier of the virtual line
  • the second correspondence includes the identifier of the virtual line
  • the identifier of the configuration information is obtained according to the third correspondence and the identifier of the configuration information, where the third correspondence includes the configuration information and the identifier of the configuration information.
  • an access device is applied to a first network, including: a processor, an input interface, an output interface, a memory, and a system bus; wherein:
  • the processor is responsible for logical operations and processing. While the server is running, the processor reads the program in the memory and performs the steps in the embodiment described in the first aspect, specifically:
  • the input interface After receiving the first message of the user equipment, acquires an identifier of a virtual line corresponding to the physical line, where the physical line is a physical line between the user equipment and a physical access node AN in the first network.
  • the virtual line is a logical line between the user equipment and the virtual AN; and the configuration information is obtained from the configuration server of the second network according to the identifier of the virtual line, where the configuration information is used to create the virtual AN Creating the virtual AN according to the configuration information.
  • the processor reads the program in the memory and performs:
  • the processor reads the program in the memory and performs:
  • the first message further includes an identifier of the second network
  • the processor reads the program in the memory, and specifically executes:
  • a server is applied to a second network, including:
  • the processor is responsible for logical operations and processing. While the server is running, the processor reads the program in the memory and performs the steps in the embodiment described in the second aspect, specifically:
  • the configuration information is used to create the virtual AN; and the control output interface is connected to the first network.
  • the in device sends the configuration information.
  • the processor reads the program in the memory and performs:
  • the processor reads the program in the memory and performs:
  • the identifier of the configuration information is information obtained according to the second correspondence and the identifier of the virtual line, where the second correspondence includes the virtual line
  • the identifier of the configuration information is obtained according to the third correspondence and the identifier of the configuration information, where the third correspondence includes the configuration information and the identifier of the configuration information.
  • the access device in the first network can automatically establish a virtual line corresponding to the physical line and a virtual AN corresponding to the virtual line, so that The communication between the user equipment and the virtual carrier network can be implemented by the virtual AN and its corresponding virtual line.
  • the virtual AN can support different protocols, and the virtual AN can be dynamically and flexibly configured according to the service requirements of the user equipment. When the service required by the user equipment changes, only the virtual line and network functions of the virtual AN need to be updated or upgraded to meet the service requirements, and the adjustment time is short and the operation and maintenance cost is low.
  • 1 is a schematic diagram of a network reference architecture of an optical access network
  • FIG. 2 is a schematic flowchart of a method according to Embodiment 1 of the present invention.
  • FIG. 3 is a schematic flowchart of a method according to Embodiment 2 of the present invention.
  • FIG. 4 is a schematic diagram of a network architecture of an application according to Embodiment 3 of the present invention.
  • FIG. 5 is a schematic flowchart diagram of a method according to Embodiment 3 of the present invention.
  • FIG. 6 is still another schematic flowchart of a method according to Embodiment 3 of the present invention.
  • FIG. 7 is a schematic flowchart of still another method according to Embodiment 3 of the present invention.
  • FIG. 8 is a schematic diagram of a network architecture of an application according to Embodiment 4 of the present invention.
  • FIG. 9 is a schematic flowchart diagram of a method according to Embodiment 4 of the present invention.
  • FIG. 10 is still another schematic flowchart of a method according to Embodiment 4 of the present invention.
  • FIG. 11 is a schematic flowchart of still another method according to Embodiment 4 of the present invention.
  • FIG. 12 is a schematic diagram of a network architecture of an application according to Embodiment 5 of the present invention.
  • FIG. 13 is a schematic flowchart diagram of a method according to Embodiment 5 of the present invention.
  • FIG. 14 is still another schematic flowchart of a method according to Embodiment 5 of the present invention.
  • FIG. 15 is a schematic diagram of a network architecture of an application according to Embodiment 6 of the present invention.
  • FIG. 16 is a schematic diagram of an access device according to Embodiment 7 of the present invention.
  • FIG. 17 is a schematic diagram of a server according to Embodiment 8 of the present invention.
  • FIG. 18 is a schematic diagram of an access device according to Embodiment 9 of the present invention.
  • FIG. 19 is a schematic diagram of a server according to Embodiment 10 of the present invention.
  • the access device in the first network determines the identifier of the virtual line according to the physical line used by the user equipment;
  • the identifier of the virtual line is obtained from the configuration server of the second network to obtain configuration information of the virtual AN; the access device creates the virtual AN according to the configuration information.
  • the first network is an access network in which an access node is deployed during network deployment, such as an InP access network; and the second network is a network in which an access node is not deployed when the network is deployed, such as a VNO network.
  • the user equipment can communicate with the virtual carrier network through the virtual AN.
  • the virtual AN can support different protocols, and the virtual AN can be flexibly configured according to the service requirements of the user equipment, which helps the InP access node to be configured according to service requirements, thereby improving configuration flexibility.
  • the virtual line and network functions corresponding to the virtual AN can be updated or upgraded to meet the changed service requirements, with short adjustment time and low operation and maintenance cost.
  • the network element involved in the embodiment of the present invention is first described below.
  • the user equipment accesses the first network through the physical AN, and the physical AN in the first network may be virtualized into one or more virtual ANs, for example, each function of the physical AN is virtualized into one virtual AN; Or a plurality of physical ANs in the first network may also be virtualized into one virtual AN, for example, the same function of multiple physical ANs is virtualized into one virtual AN.
  • the embodiment of the present invention does not limit the correspondence between the physical AN and the virtual AN. In this way, the user equipment can access a second network through one or more virtual ANs or access multiple second networks through multiple virtual ANs.
  • the physical AN in the embodiment of the present invention may be a switch, a Digital Subscriber Line Access Multiplexer (DSLAM), an ONU, an OLT, a Cable Media Converter (CMC), and a cable.
  • DSLAM Digital Subscriber Line Access Multiplexer
  • CMC Cable Media Converter
  • the device of the present invention does not limit the specific implementation of the physical AN.
  • the embodiment of the present invention does not limit the implementation of the physical AN.
  • the physical line of the physical AN is virtualized into a virtual line.
  • the physical line can be identified by a physical Line ID.
  • the physical line ID can also be referred to as an Access Loop ID or a Circuit ID.
  • Virtual lines can be identified by the Virtual Line ID.
  • the Virtual Line ID can also be referred to as a Virtual Access Loop ID or a Virtual Circuit ID.
  • the physical line identifier that is, the Physical Line ID
  • the virtual line identifier that is, the Virtual Line ID
  • the format of the physical line is as follows:
  • the format of the identifier is Access-Node-Identifier atm slot/port:vpi.vci;
  • the format of the identifier is Access-Node-Identifier eth slot/port[:vlan-id].
  • the access-Node-Identifier is the identifier of the physical AN, such as the DSLAM.
  • the slot/port is the chassis number, the rack number, the frame number, and the slot number on the physical AN. At least one of a sub-slot number and a port number; vpi.vci is a virtual path identifier and a virtual channel identifier on the DSL line; vlan-id is a virtual local area network identifier, vlan- Id is optional.
  • the format of the identifier is Access-Node-Identifier atm slot/port:vpi.vci;
  • the format of the identifier is Access-Node-Identifier eth slot/port[:vlan-id].
  • the access-Node-Identifier is the identifier of the virtual AN, that is, the virtual AN ID, and the slot/port is the chassis number, the rack number, the frame number, and the slot on the virtual AN. At least one of a number, a sub-slot number, and a port number; vpi.vci is a virtual path identifier and a virtual channel identifier on the DSL line; vlan-id is a virtual local area network identifier, vlan -id is optional.
  • the physical line identifier includes both the line ID information of the ONU part and the line identifier of the OLT part.
  • the specific format is as follows:
  • the format of the identifier is Access-Node-Identifier atm slot1/port1/ONUID/slot2/port2:vpi.vci;
  • the format of the identifier is Access-Node-Identifier eth slot1/port1/ONUID/slot2/port2[:vlan-id].
  • the access-Node-Identifier is the identifier of the OLT
  • the slot1/port1 is the chassis number, the rack number, the frame number, the slot number, and the sub-slot of the OLT. -slot) and at least one port number
  • slot2/port2 is the chassis number, rack number, frame number, slot number, and subslot on the ONU. At least one of a sub-slot number and a port number
  • ONUID/slot2/port2: vpi.vci is the line ID information of the ONU part
  • the Access-Node-Identifier slot1/port1 is the physical line ID of the OLT part. information.
  • the identifier of the virtual line includes both the line ID information of the ONU part and the line identifier of the OLT part.
  • the specific format is as follows:
  • the format of the identifier is Access-Node-Identifier atm slot1/port1/ONUID/slot2/port2:vpi.vci;
  • the format of the identifier is Access-Node-Identifier eth slot1/port1/ONUID/slot2/port2[:vlan-id].
  • the access-Node-Identifier is the identifier of the OLT
  • the slot1/port1 is the chassis number, the rack number, the frame number, the slot number, and the sub-slot of the OLT. -slot) and at least one port number
  • slot2/port2 is the chassis number, rack number, frame number, slot number, and subslot on the ONU. At least one of a sub-slot number and a port number
  • ONUID/slot2/port2: vpi.vci is the line ID information of the ONU part
  • the Access-Node-Identifier slot1/port1 is the physical line ID of the OLT part. information.
  • the first network and the second network in the embodiment of the present invention may belong to the same operator, that is, the embodiment of the present invention is applicable to the case where the same operator supports both the physical AN and the virtual AN, for example, different from the same carrier.
  • a virtual AN supports different services, that is, the same physical network supports multiple services, thereby achieving the purpose of saving physical network construction costs; the first network and the second network may also belong to different operators.
  • a method for establishing a virtual access node in an optical access network includes:
  • the access device in the first network acquires the physical information after receiving the first message of the user equipment.
  • the access device acquires configuration information from a configuration server of the second network according to the identifier of the virtual line, where the configuration information is used to create the virtual AN.
  • the access device creates the virtual AN according to the configuration information.
  • the access device in the first network can automatically establish a virtual line corresponding to the physical line and a virtual AN corresponding to the virtual line, so that the user equipment and the virtual operation are performed.
  • the communication between the quotient networks can be realized by the virtual AN and its corresponding virtual line.
  • the virtual AN can support different protocols, and the virtual AN can be dynamically and flexibly configured according to the service requirements of the user equipment. When the service required by the user equipment changes, only the virtual line and network functions of the virtual AN need to be updated or upgraded to meet the service requirements, and the adjustment time is short and the operation and maintenance cost is low.
  • the virtual line and the network function (NF Function) of the virtual AN may not be deployed when the network is started in the second network, and only when the user goes online and needs to access the second through the virtual line and the virtual AN.
  • the corresponding network functions are deployed in real time, thereby effectively protecting the network investment of the second network from being wasted.
  • an automatic establishment of a virtual line and a virtual AN is established by an access device in the first network, and the second network does not need to know the establishment process of the virtual line and the virtual AN, but directly operates to reduce the operation and maintenance of the second network. cost.
  • the virtual operator manages and controls the virtual AN as a unit, and no longer directly manages and maintains the physical AN, the operation and maintenance cost is greatly reduced.
  • the first access device in this embodiment may be a physical AN in the first network, or may be a first controller formed by separating control planes of physical ANs in the first network.
  • the access device in the first network of 31 obtains the identifier of the virtual line corresponding to the physical line, and includes the following two optional implementation manners:
  • the mode 1 the access device acquires the identifier of the virtual line from the first server of the first network, specifically:
  • the access device sends a second message to the first server of the first network, where the second message includes an identifier of the physical line;
  • the first server After receiving the second message sent by the access device, the first server allocates an identifier of the virtual line corresponding to the physical line according to the identifier of the physical line;
  • the access device receives an identifier of the virtual line sent by the first server.
  • the first server stores a correspondence between the identifier of the physical line and the identifier of the virtual line.
  • the mode 2 the access device obtains the identifier of the virtual line from the local device, where the identifier of the virtual line is obtained according to the first correspondence and the identifier of the physical line, where the corresponding relationship includes the physical The identification of the line and the identification of the virtual line.
  • the access device stores a correspondence between the identifier of the physical line and the identifier of the virtual line.
  • the method includes:
  • the configuration server in the second network obtains configuration information according to the identifier of the virtual line, where the virtual line is a logical line between the user equipment and the virtual access node AN, and the configuration information is used to create the virtual AN;
  • the configuration server sends the configuration information to an access device of the first network.
  • the configuration server in the second network obtains configuration information according to the identifier of the virtual line, and sends the configuration information to the access device of the first network, so that the access device can be configured according to the configuration information.
  • Create a virtual AN which automatically creates a virtual AN.
  • the configuration server in 41 obtains configuration information according to the identifier of the virtual line, and includes the following two alternative implementation manners:
  • Manner 1 The configuration server receives the identifier of the virtual line, and the specific implementation is as follows:
  • the configuration server receives an identifier of the virtual line sent by the access device
  • the configuration server obtains the configuration information according to the first correspondence and the identifier of the virtual line, where the first correspondence includes the configuration information and an identifier of the virtual line.
  • the access device may directly send the identifier of the virtual line to the configuration server, or send the identifier of the virtual line to the configuration server through an IP edge node in the second network, and may also pass
  • the second controller formed by the control plane separation of the IP edge node in the second network sends the identifier of the virtual line to the configuration server, and the second controller is used to control the virtual AN.
  • Manner 2 The configuration server receives the identifier of the configuration information, and the specific implementation is as follows:
  • the configuration server receives an identifier of the configuration information sent by the access device, where the identifier of the configuration information is information obtained according to the second correspondence and the identifier of the virtual line, where the second correspondence includes the virtual The identification of the line and the identification of the configuration information;
  • the configuration server obtains the configuration information according to the third correspondence and the identifier of the configuration information, where the third correspondence includes the configuration information and the identifier of the configuration information.
  • the access device may directly send the identifier of the configuration information to the configuration server, or send the identifier of the configuration information to the configuration server through an IP edge node (IP edge) in the second network.
  • IP edge IP edge node
  • the second controller formed by separating the control planes of the IP edge nodes in the second network may send the identifier of the configuration information to the configuration server, where the second controller is configured to control the virtual AN.
  • the first network is InP.
  • the second network is a VNO network.
  • the physical AN is virtualized into two virtual ANs, namely, virtual AN1 and virtual AN2, wherein the virtual AN1 accesses the VNO1 network through the IP edge node 1, The virtual AN2 accesses the VNO2 network through the IP edge node 2.
  • virtual ANs that is, virtual AN1 and virtual AN2, are established by the physical AN.
  • DHCP Dynamic Host Configuration Protocol
  • the user equipment such as the CPE/UE, sends a DHCP message to the physical AN, where the DHCP message includes an identifier of the VNO selected by the CPE/UE, that is, a VNO ID.
  • the DHCP message in this embodiment may be the first message.
  • the physical AN sends an AAA message to the first server in the first network, where the AAA message includes a physical line ID.
  • the physical AN after receiving the DHCP message sent by the CPE/UE, the physical AN obtains the physical line ID.
  • the physical AN sends an AAA message to the first server.
  • the AAA message sent by the physical AN to the first server in this embodiment may be the second message.
  • the first server may be an AAA server, and the type of the first server is not limited in this embodiment.
  • the first server allocates a virtual line ID to the physical line ID according to the physical line ID.
  • the first server after receiving the AAA message sent by the physical AN, the first server obtains a physical line ID, and the first server allocates a virtual line ID to the physical line ID according to the acquired physical line ID.
  • a correspondence between a physical line ID and a virtual line ID is pre-configured in the first server.
  • the first server determines the virtual line ID corresponding to the physical line ID according to the obtained physical line ID and the corresponding relationship.
  • a correspondence between a physical line ID and a corresponding virtual line ID pool is set in the first server.
  • the first server selects a corresponding virtual line ID pool according to the obtained physical line ID and the corresponding relationship, and selects one virtual line ID from the virtual line ID pool to allocate to the physical line ID.
  • the embodiment of the present invention does not limit a specific selection policy, and may be randomly selected, or may be selected according to the order of the virtual line IDs in the virtual line ID pool.
  • the first server sends an AAA message to the physical AN, where the sent AAA message is included.
  • the virtual line ID The virtual line ID.
  • the physical AN sends a DHCP message, that is, a third message, to the IP edge node 1 of the VNO network, where the sent DHCP message includes the virtual line ID.
  • the physical AN after receiving the AAA message sent by the first server, the physical AN obtains the virtual line ID; the physical AN is based on the VNO ID included in the DHCP message sent by the CPE/UE, and the IP in the VNO network corresponding to the VNO ID.
  • Edge node 1 sends a DHCP message.
  • the IP edge node 1 sends an AAA message to a second server in the VNO network, where the sent AAA message includes the virtual line ID.
  • the IP edge node 1 After receiving the DHCP message sent by the physical AN, the IP edge node 1 obtains the virtual line ID; the IP edge node 1 sends an AAA message to the second server.
  • the second server may be an AAA server.
  • the type of the second server is not limited.
  • the second server sends an AAA message to the IP edge node 1, where the sent AAA message includes a configuration information name and a configuration server address corresponding to the virtual line ID.
  • the second server After receiving the AAA message sent by the IP edge node 1, the second server obtains the virtual line ID; the second server determines the location according to the mapping relationship between the preset virtual line ID and the configuration information name and the configuration server address. The configuration information name and the configuration server address corresponding to the virtual line ID are sent, and the AAA message is sent to the IP edge node 1.
  • the second server may be an AAA server.
  • the type of the second server is not limited.
  • the mapping relationship between the virtual line ID and the configuration information name and the configuration server address is preset in the second server.
  • the configuration information name that is, the identifier of the configuration information
  • the server address is configured, that is, the address information of the configuration server is used to store the configuration information.
  • the configuration information corresponding to all the virtual ANs may be stored in one configuration server, or the configuration information corresponding to all the virtual ANs may be divided into multiple sets, and each set is stored in a different configuration server. For example, the configuration information corresponding to the virtual AN connected to the same VNO network is divided into one set and stored in the same configuration server.
  • the configuration information includes, but is not limited to, at least one of the following information: a network function supported by the virtual AN, a service function, and a port of the virtual AN.
  • the port of the virtual AN may be a port where the virtual AN communicates with the user side or a port where the virtual AN communicates with the network side.
  • the IP edge node 1 sends a DHCP message to a DHCP server in the VNO network, where the sent DHCP message includes the virtual line ID.
  • the IP edge node 1 After receiving the AAA message sent by the second server, the IP edge node 1 obtains the virtual line ID; the IP edge node 1 sends a DHCP message to the DHCP server.
  • the DHCP server allocates IP address information to the CPE/UE according to the virtual line ID, where the IP address is an IP address or an IP address prefix, and is recorded as an IP address/IP address prefix.
  • the DHCP server After receiving the DHCP message sent by the IP edge node 1, the DHCP server obtains the virtual line ID; the DHCP server allocates IP address information to the CPE/UE according to the virtual line ID.
  • the DHCP server sends a DHCP message to the IP edge node 1, where the sent DHCP message includes the allocated IP address information and the virtual line ID.
  • the IP edge node 1 binds the allocated IP address information to the virtual line ID.
  • the IP edge node 1 After receiving the DHCP message sent by the DHCP server, the IP edge node 1 obtains the allocated IP address information and the virtual line ID; the IP edge node 1 performs the assigned IP address information with the virtual line ID. Bind.
  • the IP edge node 1 sends a DHCP message to the physical AN, where the sent DHCP message includes the allocated IP address information, the virtual line ID, the configuration information name, and the configuration server address.
  • the physical AN forms a mapping relationship between the physical line ID and the virtual line ID.
  • the physical AN After receiving the DHCP message sent by the IP edge node 1, the physical AN obtains the allocated IP address information, the virtual line ID, the configuration information name, and the configuration server address; the physical AN forms the physical line ID and the virtual The mapping relationship of line IDs.
  • the physical AN binds the assigned IP address/IP address prefix to the physical line ID.
  • the physical AN converts the virtual line ID to a physical line ID.
  • the physical AN determines the physical line ID corresponding to the virtual line ID according to the virtual line ID included in the received DHCP message.
  • the physical AN sends a DHCP message to the CPE/UE, where the sent DHCP message includes IP address information.
  • the physical AN deletes the virtual line ID in the received DHCP message, and sends the DHCP message to the CPE/UE through the physical line corresponding to the physical line ID.
  • the sent DHCP message includes a VNO ID, so that the CPE/UE selects an operator corresponding to the VNO ID to perform subsequent operations, such as an online operation/voice call, according to the VNO ID included in the received DHCP message.
  • the physical AN triggers to create a corresponding virtual AN.
  • EAP Extensible Authentication Protocol
  • the CPE/UE sends an EAP message to the physical AN, that is, the first message, and the sent EAP message includes the VNO ID selected by itself.
  • the physical AN sends an AAA message, that is, a second message, to the first server in the first network, where the sent AAA message includes an identifier of the physical line.
  • the physical AN After receiving the EAP message sent by the CPE/UE, the physical AN obtains the identifier of the physical line; the physical AN sends an AAA message to the first server, so that the first server allocates the identifier of the virtual line to the physical line ID.
  • 703 and 704 refer to the related descriptions of 603 and 604 in the embodiment shown in FIG. 5, respectively.
  • the physical AN sends an EAP message, that is, a third message, to the IP edge node 1 of the VNO network, where the sent EAP message includes the virtual line ID.
  • the physical AN after receiving the AAA message sent by the first server, the physical AN obtains the virtual line ID; the physical AN is based on the VNO ID included in the EAP message sent by the CPE/UE, and the IP in the VNO network corresponding to the VNO ID.
  • Edge node 1 sends an EAP message.
  • the IP edge node 1 sends an AAA message to a second server in the VNO network.
  • the virtual line ID is included in the sent AAA message.
  • the IP edge node 1 After receiving the EAP message sent by the physical AN, the IP edge node 1 obtains the virtual line ID; the IP edge node 1 sends an AAA message to the second server.
  • the IP edge node 1 sends an EAP message to the physical AN, where the sent EAP message includes the configuration information name and the configuration server address.
  • the virtual line ID is also included in the sent EAP message.
  • the IP edge node 1 uses the channel ID of the channel between the IP edge node 1 and the physical AN to carry the virtual line ID, which requires the IP edge node 1 to
  • the corresponding virtual line ID is determined according to the channel ID.
  • the IP edge node 1 can maintain the mapping relationship between the channel ID and the corresponding virtual line ID.
  • the physical AN forms a mapping relationship between the physical line ID and the virtual line ID.
  • the physical AN after receiving the EAP message sent by the IP edge node 1, the physical AN obtains the virtual line ID; the physical AN forms a mapping relationship between the physical line ID and the virtual line ID.
  • the physical AN sends an EAP message to the CPE/UE.
  • the physical AN determines the physical line ID corresponding to the virtual line ID according to the virtual line ID included in the received EAP message, and sends an EAP message to the CPE/UE through the physical line corresponding to the physical line ID. So that the CPE/UE performs an authentication response according to the EAP message.
  • the sent EAP message includes a VNO ID, so that the CPE/UE selects an operator corresponding to the VNO ID to perform subsequent operations, such as an online operation/voice call, according to the VNO ID included in the received EAP message.
  • the physical AN triggers to create a corresponding virtual AN.
  • the process of the physical AN triggering the creation of the corresponding virtual AN on the network device, such as the physical AN, or the server of the data center, as shown in FIG. 7, includes:
  • the physical AN obtains the identifier of the virtual AN corresponding to the virtual line ID allocated by the first server in the first network, that is, the virtual AN ID, the configuration information name, and the configuration server address.
  • the virtual AN ID may be obtained from the virtual line ID, because the virtual-line ID includes the Access-Node-Identifier field, and the domain value of the Access-Node-Identifier field in the virtual line ID is the virtual AN ID.
  • the physical AN sends a request message to the configuration server to request to obtain configuration information corresponding to the virtual line ID.
  • the physical AN sends a request message to the configuration server according to the configuration server address to request to obtain configuration information corresponding to the virtual line ID, where the request message includes a configuration information name or a virtual line ID.
  • the configuration server returns, to the physical AN, configuration information of the virtual AN corresponding to the virtual line ID.
  • the configuration server After receiving the request message sent by the physical AN, the configuration server obtains the corresponding configuration information by adopting the foregoing manner 1 or mode 2.
  • the configuration information of the virtual AN corresponding to each virtual line ID is set in the configuration server, and the configuration information is stored in the configuration information name.
  • the physical AN triggers establishing a virtual AN corresponding to the virtual line.
  • the physical AN receives the configuration information returned by the configuration server, and triggers the establishment of the virtual AN corresponding to the virtual line according to the configuration information.
  • the process further includes the following:
  • the physical AN allocates a network function to the virtual AN corresponding to the virtual line according to the configuration information.
  • the physical AN allocates a network function to the virtual AN corresponding to the virtual line according to the information about the network function corresponding to the service that the user equipment is registered in the second network.
  • the network function corresponding to the home service refers to the network function that the virtual AN needs to implement when implementing the home service, and is virtual according to the information about the network function corresponding to the home service.
  • the AN allocates corresponding network functions to enable the virtual AN to implement the home service subscribed by the user equipment.
  • the embodiment 805 further includes:
  • the physical AN allocates a service function (SF) to the virtual AN according to the information indicating the service function corresponding to the service registered by the user equipment in the second network in the configuration information;
  • SF service function
  • the physical AN establishes a corresponding service function chain for the virtual AN according to the information indicating the service function corresponding to the service registered by the user equipment in the second network and the execution order of the service function in the configuration information.
  • Chain SFC
  • the user equipment is still subscribed to the home service in the second network, and the service function is allocated to the virtual AN, including firewall, parental control, deep packet inspection, etc., and the corresponding service function chain is established for the virtual AN as the execution order of the foregoing service function. .
  • the virtual AN can be run on the controller in addition to the physical AN, and can also run on the server.
  • the method further includes:
  • the physical AN establishes a channel between itself and the virtual AN for communication.
  • the physical AN configures a channel endpoint on the physical AN, such as a virtual tunnel end point (VTEP), and a channel endpoint configured to configure a virtual AN or a gateway where the virtual AN is located, such as VTEP, to establish a relationship between itself and the virtual AN. aisle.
  • VTEP virtual tunnel end point
  • VTEP virtual tunnel end point
  • the physical AN configures a line parameter corresponding to the virtual AN.
  • the line parameters include, but are not limited to, at least one of the following parameters: a bandwidth parameter, a QoS parameter, a line type, and the like.
  • the virtual AN can be automatically established, and then the physical AN can notify the InP access network and the servers in the VNO network, that is, the first server and the second server, to charge the virtual line and the corresponding NF/SF.
  • the network architecture of the application of the fourth embodiment provided by the embodiment of the present invention is as shown in FIG. 8.
  • the control plane of the physical AN is separated from the forwarding plane, and the function of the control plane of the physical AN is integrated into the controller 1, and the virtualization of the physical AN is performed.
  • controller 1 supports different virtual ANs and virtual lines for different VNOs, and different virtual ANs and virtual lines can be controlled by different VNOs.
  • the physical AN is virtualized on the controller 1 into two virtual ANs, namely virtual AN1 and virtual AN2, where CPE/UE
  • the virtual AN1 is connected to the VNO1 network, and the CPE/UE accesses the VNO2 network through the virtual AN2.
  • the controller is respectively connected to the configuration server, the second server, and the DHCP server in the VNO network.
  • the virtual AN corresponding to the virtual line that is, the virtual AN1 and the virtual AN2 are established by the controller 1.
  • the process of establishing a virtual access node in the optical access network in this embodiment is described by taking a virtual AN1 as an example and using different protocols from the interaction between the network elements.
  • the process of establishing the virtual AN2 is similar to this, and this embodiment is not illustrated one by one.
  • DHCP is used between network elements. The specific process is shown in Figure 9 below:
  • 1001 refers to the related description of 601 in the embodiment shown in FIG.
  • the physical AN carries the DHCP message and the physical line ID in a tunnel, and sends the signal to the controller 1.
  • the physical AN After receiving the DHCP message sent by the CPE/UE, the physical AN carries the DHCP message and the physical line ID to the tunnel for communication between the physical AN and the controller 1, and sends the message to the controller 1.
  • the controller 1 sends an AAA message, that is, a second message, to the first server in the first network, where the sent AAA message includes the physical line ID.
  • the controller 1 receives the DHCP message sent by the physical AN and the physical line ID through the tunnel; the controller 1 sends an AAA message to the first server, so that the first server allocates a virtual line for the physical line ID. ID.
  • the controller 1 after receiving the VNO ID sent by the physical AN, the controller 1 further determines the VNO corresponding to the VNO ID.
  • 1004 refers specifically to the related description of 603 in the embodiment shown in FIG.
  • the first server after receiving the AAA message sent by the controller 1, the first server obtains the physical line ID.
  • the first server sends an AAA message, that is, a third message, to the controller 1, and the sent AAA message includes the allocated virtual line ID.
  • the controller 1 sends an AAA message to the second server in the VNO network, and the sent The virtual line ID is included in the AAA message.
  • the controller 1 After receiving the AAA message sent by the first server, the controller 1 obtains the virtual line ID; the controller 1 according to the VNO ID included in the DHCP message sent by the CPE/UE, to the VNO network corresponding to the VNO ID.
  • the second server sends an AAA message.
  • the second server sends an AAA message to the controller 1, where the sent AAA message includes a configuration information name and a configuration server address corresponding to the virtual line ID.
  • the second server after receiving the AAA message sent by the controller 1, the second server obtains the virtual line ID; and the second server determines, according to the mapping relationship between the preset virtual line ID and the configuration information name and the configuration server address, The configuration information name corresponding to the virtual line ID and the configuration server address, and send an AAA message to the controller 1.
  • the configuration information name For details, refer to the related description in the embodiment shown in FIG. 5 for the second server, the configuration information name, the configuration server address, and the configuration information.
  • the controller 1 sends a DHCP message to a DHCP server in the VNO network, where the sent DHCP message includes the virtual line ID.
  • the controller 1 After receiving the AAA message sent by the second server, the controller 1 obtains the virtual line ID; the controller 1 sends a DHCP message to the DHCP server.
  • the DHCP server sends a DHCP message to the controller 1, where the sent DHCP message includes the allocated IP address information and the virtual line ID.
  • the controller 1 forms a mapping relationship between the physical line ID and the virtual line ID, and binds the allocated IP address information to the physical line ID.
  • the controller 1 After receiving the DHCP message sent by the DHCP server, the controller 1 acquires the allocated IP address information and the virtual line ID; the controller 1 forms a mapping relationship between the physical line ID and the virtual line ID, And binding the assigned IP address information to the physical line ID.
  • the controller 1 converts the virtual line ID in the received DHCP message into a physical line ID.
  • the controller 1 sends the DHCP message to the physical AN by using the tunnel, where the DHCP message includes the physical line ID and IP address information.
  • the physical AN sends a DHCP message to the CPE/UE.
  • the physical AN determines a physical line corresponding to the physical line ID, and sends a DHCP message to the CPE/UE through the physical line.
  • the sent DHCP message includes a VNO ID, so that the CPE/UE selects an operator corresponding to the VNO ID to perform subsequent operations, such as an online operation/voice call, according to the VNO ID included in the received DHCP message.
  • the controller 1 triggers creation of a corresponding virtual AN.
  • the physical AN carries the EAP message and the physical line ID in the tunnel, and sends the signal to the controller 1.
  • the specific process is similar to 1002 in the embodiment shown in FIG.
  • 1103 to 1107 refer to 1003 to 1107 in the embodiment shown in Fig. 9, respectively.
  • the controller 1 forms a mapping relationship between the physical line ID and the virtual line ID.
  • the controller 1 After receiving the AAA message sent by the second server, the controller 1 forms a mapping relationship between the physical line ID and the virtual line ID.
  • the controller 1 sends an EAP message to the physical AN through the tunnel.
  • the physical AN sends an EAP message to the CPE/UE.
  • the physical AN determines the physical line corresponding to the physical line ID, and sends an EAP message to the CPE/UE through the physical line, so that the CPE/UE according to the EAP message.
  • Authentication is performed in the AAA server in the virtual carrier network.
  • the sent EAP message includes a VNO ID, so that the CPE/UE selects an operator corresponding to the VNO ID to perform subsequent operations, such as an online operation/voice call, according to the VNO ID included in the received EAP message.
  • controller 1 triggers the creation of a corresponding virtual AN.
  • the controller 1 triggers the creation of a corresponding virtual AN. As shown in Figure 11, it includes:
  • the virtual AN can be run on the controller in addition to the physical AN, and can also run on the server.
  • the method further includes:
  • the controller 1 also establishes a channel for communication between the physical AN and the virtual AN or the gateway where the virtual AN is located.
  • the controller 1 configures a channel endpoint on the physical AN, such as VTEP; and the controller 1 configures a channel endpoint of the virtual AN or the gateway where the virtual AN is located, such as VTEP, to establish a channel between the physical AN and the virtual AN.
  • the network architecture of the application of the sixth embodiment provided by the embodiment of the present invention is as shown in FIG. 12, the control plane of the physical AN is separated from the forwarding plane, and the function of the control plane of the physical AN is integrated into the controller 1, and the virtualization of the physical AN is Implemented on controller 1, controller 1 supports different virtual ANs and virtual lines for different VNOs, and different virtual ANs and virtual lines can be controlled by different VNOs.
  • the physical AN is virtualized on the controller 1 into two virtual ANs, namely a virtual AN1 and a virtual AN2, wherein the CPE/UE accesses the VNO1 network through the virtual AN1, and the CPE/UE accesses the VNO2 network through the virtual AN2.
  • FIG. 12 the control plane of the physical AN is separated from the forwarding plane, and the function of the control plane of the physical AN is integrated into the controller 1, and the virtualization of the physical AN is Implemented on controller 1, controller 1 supports different virtual ANs and virtual lines for different
  • the controller 1 is connected to a configuration server in the VNO1 network and the VNO2 network, respectively, and the IP edge node 1 is respectively connected to the second server and the DHCP server in the VNO1 network, and the IP edge node 2 respectively
  • the second server in the VNO2 network is connected to the DHCP server.
  • the virtual AN corresponding to the virtual line, that is, the virtual AN1 and the virtual AN2 are established by the controller 1.
  • DHCP is used between network elements. The specific process is shown in Figure 13 below:
  • the 1406 to 1415 respectively refer to the related descriptions of 605 to 614 in the embodiment shown in FIG. 5, and the difference between the embodiment and the embodiment shown in FIG. 5 is that the execution body of the embodiment is the controller 1, as shown in FIG.
  • the executive body of the embodiment is a physical AN.
  • 1501 to 1505 refer to the related description of 1101 to 1105 in the embodiment shown in FIG.
  • the execution body of the embodiment is the controller 1, and FIG. 6
  • the executive body of the illustrated embodiment is a physical AN.
  • 1511 ⁇ 1513 specifically refer to the relevant description of 1109 ⁇ 1111 in the embodiment shown in Figure 10.
  • the network architecture of the application of the sixth embodiment provided by the embodiment of the present invention is as shown in FIG. 15.
  • the control plane of the physical AN is separated from the forwarding plane, and the function of the control plane of the physical AN is integrated into the controller 1, and the virtualization of the physical AN is performed.
  • controller 1 supports different virtual ANs and virtual lines for different VNOs, and different virtual ANs and virtual lines can be controlled by different VNOs.
  • the physical AN is virtualized on the controller 1 into two virtual ANs, namely a virtual AN1 and a virtual AN2, wherein the CPE/UE accesses the VNO1 network through the virtual AN1, and the CPE/UE accesses the VNO2 network through the virtual AN2.
  • the function of the control plane of the IP edge node 1 is integrated into the controller 2.
  • the controller 1 is respectively connected to the configuration servers in the VNO1 network and the VNO2 network, and the controller 2 is respectively connected to the second server and the DHCP server in the VNO1 network, and the virtual AN1 is connected to the controller 2.
  • the virtual AN corresponding to the virtual line, that is, the virtual AN1 and the virtual AN2 are established by the controller 1.
  • the optical access network provided in this embodiment is provided in the optical access network.
  • the process of establishing a virtual access node is specifically described in the description of the embodiment shown in FIG. 13, wherein the controller 2 performs the steps of the IP edge node 1.
  • the above method processing flow can be implemented by a software program, which can be stored in a storage medium, and when the stored software program is called, the above method is executed.
  • an access device is provided, where the access device is applied to the first network, and the implementation of the access device provided in this embodiment can be implemented as shown in FIG. A related description in the example.
  • the access device includes:
  • the first obtaining module 1701 is configured to acquire, after receiving the first message of the user equipment, an identifier of a virtual line corresponding to the physical line, where the physical line is the user equipment and a physical access node in the first network a physical line between the ANs, the virtual line being a logical line between the user equipment and the virtual AN;
  • the second obtaining module 1702 is configured to obtain, according to the identifier of the virtual line, configuration information from a configuration server of the second network, where the configuration information is used to create the virtual AN;
  • the creating module 1703 is configured to create the virtual AN according to the configuration information.
  • the first obtaining module 1701 is specifically configured to:
  • the first obtaining module 1701 is specifically configured to:
  • the first message further includes an identifier of the second network, where the second obtaining module 1702 is specifically configured to:
  • a server is provided, and the server is applied to the second network.
  • the server includes:
  • the obtaining module 1801 is configured to obtain configuration information according to the identifier of the virtual line, where the virtual line is a logical line between the user equipment and the virtual access node AN, and the configuration information is used to create the virtual AN;
  • the sending module 1802 is configured to send the configuration information to an access device of the first network.
  • the obtaining module 1801 is specifically configured to:
  • the obtaining module 1801 is specifically configured to: the acquiring module is specifically configured to:
  • the identifier of the configuration information is information obtained according to the second correspondence and the identifier of the virtual line
  • the second correspondence includes the identifier of the virtual line
  • the identifier of the configuration information is obtained according to the third correspondence and the identifier of the configuration information, where the third correspondence includes the configuration information and the identifier of the configuration information.
  • the access device includes: a processor 1901.
  • the processor 1901 is responsible for logical operations and processing. When the server is running, the processor 1901 reads the program in the memory 1904 and executes the method provided in the embodiment shown in FIG. 2, specifically:
  • the input interface 1902 After receiving the first message of the user equipment, the input interface 1902 acquires an identifier of the virtual line corresponding to the physical line, where the physical line is the physical access of the user equipment and the first network. a physical line between the node AN, the virtual line is a logical line between the user equipment and the virtual AN; and the configuration information is obtained from the configuration server of the second network according to the identifier of the virtual line, the configuration information Used to create the virtual AN; create the virtual AN according to the configuration information.
  • the memory 1904 includes a memory and a hard disk, and can store data used by the processor 1901 when performing operations.
  • the input interface 1902 is for reading in data under the control of the processor 1901, and the output interface 1903 is outputting data under the control of the processor 1901.
  • the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 1901 and various circuits of memory and hard disks represented by memory 1904.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the processor 1901 reads the program in the memory 1904 and specifically executes:
  • the processor 1901 reads the program in the memory 1904 and specifically executes:
  • the first message further includes an identifier of the second network
  • the processor 1901 reads the program in the memory 1904, and specifically executes:
  • a server is provided, and the service is provided.
  • the device is applied to the second network, as shown in FIG. 19, the server includes:
  • the processor 2001 is responsible for logical operations and processing.
  • the processor 2001 reads the program in the memory 2004 and executes the method of the embodiment shown in FIG. 3, specifically:
  • the configuration information is used to create the virtual AN; and the control output interface 2003 is directed to the first network.
  • the access device sends the configuration information.
  • the memory 2004 includes a memory and a hard disk, and can store data used by the processor 2001 in performing operations.
  • the input interface 2002 is for reading in data under the control of the processor 2001, and the output interface 2003 is outputting data under the control of the processor 2001.
  • the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 2001 and various circuits of memory and hard disks represented by memory 2004.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the processor 2001 reads the program in the memory 2004 and specifically executes:
  • the processor 2001 reads the program in the memory 2004 and specifically executes:
  • the identifier of the configuration information is information obtained according to the second correspondence and the identifier of the virtual line, where the second correspondence includes the virtual The identifier of the line and the identifier of the configuration information; the configuration information is obtained according to the third correspondence and the identifier of the configuration information, where the third correspondence includes The configuration information and the identifier of the configuration information.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • computer usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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Abstract

本发明公开了一种在光接入网中建立虚拟接入节点的方法和设备，有助于实现InP的接入节点能够根据业务需要进行配置，提高配置的灵活性。方法包括：第一网络中的接入设备在接收到用户设备的第一消息后，获取物理线路对应的虚拟线路的标识，所述物理线路为所述用户设备与所述第一网络中的物理接入节点AN之间的物理线路，所述虚拟线路为所述用户设备与虚拟AN之间的逻辑线路；所述接入设备根据所述虚拟线路的标识，从第二网络的配置服务器中获取配置信息，所述配置信息用于创建所述虚拟AN；所述接入设备根据所述配置信息创建所述虚拟AN。

Description

一种在光接入网中建立虚拟接入节点的方法和设备
本申请要求于2015年12月28日提交中国专利局、申请号为CN201511006124.1、发明名称为“一种在光接入网中建立虚拟接入节点的方法和设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信技术领域，特别涉及一种在光接入网中建立虚拟接入节点的方法和设备。
背景技术
图1为光接入网(Optical Access Network，简称OAN)的场景示意图。OAN包括：用户驻地网(Customer Premises Network，简称CPN)、接入网(Access Network)和业务节点功能(Service Node Function)。接入网络包括：光路终结点(Optical Line Termination，简称OLT)、光分配网(Optical Distribution Network，简称ODN)、光网络单元(Optical Network Unit，简称ONU)/光网络终端(Optical Network Terminal，简称ONT)和接入功能(Access Function，简称AF)。AF主要是提供ONU/ONT接口与用户网络侧接口(User Networks Interface，简称UNI)的相互转换。如果AF内置在ONU中，则图1中的接入网络可省略用(a)标识的参考点。如果AF位于OLT与业务节点接口(Service Node Interface，简称SNI)间，则AF可用于OLT接口和SNI的相互转换。图1中的T为UNI接口的参考点，V为SNI接口的参考点。OLT为ODN提供网络接口。
如图1所示，用户端设备(Customer Premises Equipment，简称CPE)通过UNI接口连接到AF，如数字用户线(Digital Subscriber Line，简称DSL)。AF对接收到的第一报文进行格式转换，得到第二报文，其中，第一报文采用UNI接口格式封装，第二报文采用能与ONU通信的(a)接口格式封装，如 以太网(Ethernet，简称ETH)链路。ONU对第二报文进行格式转换，得到第三报文，其中，第三报文采用能在ODN上传送的格式封装，如以太网无源光网络(Ethernet Passive Optical Network，简称EPON)的封装或无源光综合接入标准GPON(Gigabit-Capable PON)的通用组帧的封装。OLT对第三报文基尼险那个格式转换，得到第四报文，第四报文采用SNI接口格式封装，如Ethernet链路，将第四报文发送给SNF。
目前，如果基础设施运营商(Infrustracture Provider，简称InP)开放其接入网，将接入网批发给虚拟网络运营商(Virtual Network Operator，简称VNO)，则InP接入网络中的物理接入节点(Access Node，简称AN)无法满足用户设备在VNO网络中的业务需求。
发明内容
本发明实施例提供了一种在光接入网中建立虚拟接入节点的方法和设备，有助于实现InP的接入节点能够根据业务需要进行配置，提高配置的灵活性。
第一方面，一种在光接入网中建立虚拟接入节点的方法，包括：
第一网络中的接入设备在接收到用户设备的第一消息后，获取物理线路对应的虚拟线路的标识，所述物理线路为所述用户设备与所述第一网络中的物理接入节点AN之间的物理线路，所述虚拟线路为所述用户设备与虚拟AN之间的逻辑线路；
所述接入设备根据所述虚拟线路的标识，从第二网络的配置服务器中获取配置信息，所述配置信息用于创建所述虚拟AN；
所述接入设备根据所述配置信息创建所述虚拟AN。
可能的实现方式中，所述接入设备获取物理线路对应的虚拟线路的标识，包括：
所述接入设备向第一网络的第一服务器发送第二消息，所述第二消息包括所述物理线路的标识；
所述接入设备接收所述第一服务器发送的所述虚拟线路的标识。
可能的实现方式中，所述接入设备获取物理线路对应的虚拟线路的标识，包括：
所述接入设备根据对应关系和所述物理线路的标识，获得所述虚拟线路的标识，所述对应关系包括所述物理线路的标识和所述虚拟线路的标识。
可能的实现方式中，所述第一消息还包括所述第二网络的标识，所述接入设备根据所述虚拟线路的标识，从第二网络的配置服务器中获取配置信息，包括：
所述接入设备根据所述第一消息中的所述第二网络的标识，向所述第二网络中的第二服务器发送第三消息，所述第三消息包括所述虚拟线路的标识；
所述接入设备接收所述第二服务器发送的所述配置信息的标识和所述配置服务器的地址信息；
所述接入设备根据所述配置信息的标识，从所述地址信息对应的配置服务器获取所述配置信息。
可能的实现方式中，所述接入设备获取物理线路对应的虚拟线路的标识之后，该方法还包括：
所述接入设备根据所述第二网络的标识，向相应的第二网络的DHCP服务器发送第二消息，其中，所述第二消息包括所述虚拟线路的标识；
所述接入设备接收所述DHCP服务器返回的IP地址信息和虚拟线路的标识，并根据接收到的虚拟线路的标识，确定出对应的物理线路的标识；
所述接入设备将所述IP地址信息和确定出的物理线路的标识进行绑定。
可能的实现方式中，所述接入设备根据所述配置信息，创建所述虚拟线路对应的虚拟AN，还包括：
根据所述配置信息中用于表示所述用户设备在第二网络中注册的业务对应的网络功能的信息，为所述虚拟线路对应的虚拟AN分配网络功能。
可能的实现方式中，所述接入设备根据所述配置信息，创建所述虚拟线路对应的虚拟AN，还包括：
根据所述配置信息中用于表示所述用户设备在第二网络中注册的业务对应的业务功能的信息，为所述虚拟线路对应的虚拟AN分配业务功能；
和/或
根据所述配置信息中用于表示所述用户设备在第二网络中注册的业务对应的业务功能的信息和所述业务功能的执行顺序，为所述虚拟线路对应的虚拟AN建立相应的业务功能链。
可能的实现方式中，所述接入设备根据所述配置信息，创建所述虚拟线路对应的虚拟AN之后，该方法还包括：
所述接入设备建立所述物理AN和所述虚拟AN之间的用于进行通信的通道。
第二方面，一种在光接入网中建立虚拟接入节点的方法，包括：
第二网络中的配置服务器根据虚拟线路的标识，获得配置信息，所述虚拟线路为用户设备与虚拟接入节点AN之间的逻辑线路，所述配置信息用于创建所述虚拟AN；
所述配置服务器向第一网络的接入设备发送所述配置信息。
可能的实现方式中，所述第二网络中的配置服务器根据虚拟线路的标识，获得配置信息，包括：
所述配置服务器接收所述接入设备发送的所述虚拟线路的标识；
所述配置服务器根据第一对应关系和所述虚拟线路的标识，获得所述配置信息，所述第一对应关系包括所述配置信息和所述虚拟线路的标识。
可能的实现方式中，所述第二网络中的配置服务器根据虚拟线路的标识，获得配置信息包括：
所述配置服务器接收所述接入设备发送的配置信息的标识，所述配置信息的标识是根据第二对应关系和所述虚拟线路的标识获得的信息，所述第二对应关系包括所述虚拟线路的标识和所述配置信息的标识；
所述配置服务器根据第三对应关系和所述配置信息的标识，获得所述配置信息，所述第三对应关系包括所述配置信息和所述配置信息的标识。
第三方面，一种接入设备，应用于第一网络中，所述接入设备包括：
第一获取模块，用于在接收到用户设备的第一消息后，获取物理线路对应的虚拟线路的标识，所述物理线路为所述用户设备与所述第一网络中的物理接入节点AN之间的物理线路，所述虚拟线路为所述用户设备与虚拟AN之间的逻辑线路；
第二获取模块，用于根据所述虚拟线路的标识，从第二网络的配置服务器中获取配置信息，所述配置信息用于创建所述虚拟AN；
创建模块，用于根据所述配置信息创建所述虚拟AN。
可能的实现方式中，所述第一获取模块具体用于：
向第一网络的第一服务器发送第二消息，所述第二消息包括所述物理线路的标识；以及接收所述第一服务器发送的所述虚拟线路的标识。
可能的实现方式中，所述第一获取模块具体用于：
根据对应关系和所述物理线路的标识，获得所述虚拟线路的标识，所述对应关系包括所述物理线路的标识和所述虚拟线路的标识。
可能的实现方式中，所述第一消息还包括所述第二网络的标识，所述第二获取模块具体用于：
根据所述第一消息中的所述第二网络的标识，向所述第二网络中的第二服务器发送第三消息，所述第三消息包括所述虚拟线路的标识；接收所述第二服务器发送的所述配置信息的标识和所述配置服务器的地址信息；根据所述配置信息的标识，从所述地址信息对应的配置服务器获取所述配置信息。
第四方面，一种服务器，应用于第二网络，所述服务器包括：
获取模块，用于根据虚拟线路的标识，获得配置信息，所述虚拟线路为用户设备与虚拟接入节点AN之间的逻辑线路，所述配置信息用于创建所述虚拟AN；
发送模块，用于向第一网络的接入设备发送所述配置信息。
可能的实现方式中，所述获取模块具体用于：
接收所述接入设备发送的所述虚拟线路的标识；根据第一对应关系和所 述虚拟线路的标识，获得所述配置信息，所述第一对应关系包括所述配置信息和所述虚拟线路的标识。
可能的实现方式中，所述获取模块具体用于：
接收所述接入设备发送的配置信息的标识，所述配置信息的标识是根据第二对应关系和所述虚拟线路的标识获得的信息，所述第二对应关系包括所述虚拟线路的标识和所述配置信息的标识；根据第三对应关系和所述配置信息的标识，获得所述配置信息，所述第三对应关系包括所述配置信息和所述配置信息的标识。
第五方面，一种接入设备，应用于第一网络中，包括：处理器、输入接口、输出接口、存储器和系统总线；其中：
处理器负责逻辑运算和处理。在服务器运行时，处理器读取存储器中的程序，并执行第一方面所描述的实施例中的各步骤，具体为：
在输入接口接收到用户设备的第一消息后，获取物理线路对应的虚拟线路的标识，所述物理线路为所述用户设备与所述第一网络中的物理接入节点AN之间的物理线路，所述虚拟线路为所述用户设备与虚拟AN之间的逻辑线路；根据所述虚拟线路的标识，从第二网络的配置服务器中获取配置信息，所述配置信息用于创建所述虚拟AN；根据所述配置信息创建所述虚拟AN。
可能的实现方式中，处理器读取存储器中的程序，并具体执行：
向第一网络的第一服务器发送第二消息，所述第二消息包括所述物理线路的标识；以及接收所述第一服务器发送的所述虚拟线路的标识。
可能的实现方式中，处理器读取存储器中的程序，并具体执行：
根据对应关系和所述物理线路的标识，获得所述虚拟线路的标识，所述对应关系包括所述物理线路的标识和所述虚拟线路的标识。
可能的实现方式中，所述第一消息还包括所述第二网络的标识，处理器读取存储器中的程序，并具体执行：
根据所述第一消息中的所述第二网络的标识，向所述第二网络中的第二服务器发送第三消息，所述第三消息包括所述虚拟线路的标识；接收所述第 二服务器发送的所述配置信息的标识和所述配置服务器的地址信息；根据所述配置信息的标识，从所述地址信息对应的配置服务器获取所述配置信息。
第六方面，一种服务器，应用于第二网络，包括：
处理器、输入接口、输出接口、存储器和系统总线；其中：
处理器负责逻辑运算和处理。在服务器运行时，处理器读取存储器中的程序，并执行第二方面所描述的实施例中的各步骤，具体为：
根据虚拟线路的标识，获得配置信息，所述虚拟线路为用户设备与虚拟接入节点AN之间的逻辑线路，所述配置信息用于创建所述虚拟AN；控制输出接口向第一网络的接入设备发送所述配置信息。
可能的实现方式中，处理器读取存储器中的程序，并具体执行：
通过输入接口接收所述接入设备发送的所述虚拟线路的标识；根据第一对应关系和所述虚拟线路的标识，获得所述配置信息，所述第一对应关系包括所述配置信息和所述虚拟线路的标识。
可能的实现方式中，处理器读取存储器中的程序，并具体执行：
通过输入接口接收所述接入设备发送的配置信息的标识，所述配置信息的标识是根据第二对应关系和所述虚拟线路的标识获得的信息，所述第二对应关系包括所述虚拟线路的标识和所述配置信息的标识；根据第三对应关系和所述配置信息的标识，获得所述配置信息，所述第三对应关系包括所述配置信息和所述配置信息的标识。
本发明实施例提供的方法和设备中，第一网络中的接入设备在接收到用户设备的第一消息后，能够自动建立物理线路对应的虚拟线路、以及该虚拟线路对应的虚拟AN，使得用户设备与虚拟运营商网络之间的通信，可以通过虚拟AN及其对应的虚拟线路来实现。由于虚拟AN可以支持不同的协议，并且可以根据用户设备的业务需要动态灵活的配置虚拟AN。当用户设备所需业务发生变化时，仅需要更新或升级虚拟AN的虚拟线路和网络功能即可满足业务需求，调整时间短、运维成本低。
附图说明
图1为光接入网的网络参考架构示意图；
图2为本发明实施例一提供的方法的流程示意图；
图3为本发明实施例二提供的方法的流程示意图；
图4为本发明实施例三应用的网络架构示意图；
图5为本发明实施例三提供的方法的流程示意图；
图6为本发明实施例三提供的方法的又一流程示意图；
图7为本发明实施例三提供的方法的再一流程示意图；
图8为本发明实施例四应用的网络架构示意图；
图9为本发明实施例四提供的方法的流程示意图；
图10为本发明实施例四提供的方法的又一流程示意图；
图11为本发明实施例四提供的方法的再一流程示意图；
图12为本发明实施例五应用的网络架构示意图；
图13为本发明实施例五提供的方法的流程示意图；
图14为本发明实施例五提供的方法的又一流程示意图；
图15为本发明实施例六应用的网络架构示意图；
图16为本发明实施例七提供的接入设备的示意图；
图17为本发明实施例八提供的服务器的示意图；
图18为本发明实施例九提供的接入设备的示意图；
图19为本发明实施例十提供的服务器的示意图。
具体实施方式
本发明实施例提供的方法中，第一网络中的接入设备在接收到用户设备发送的第一消息后，根据用户设备所采用的物理线路，确定虚拟线路的标识；所述接入设备根据所述虚拟线路的标识，从第二网络的配置服务器中获得创建虚拟AN的配置信息；所述接入设备根据所述配置信息创建所述虚拟AN。 其中，所述第一网络是在网络部署时部署了接入节点的接入网络，如InP接入网络；所述第二网络是在网络部署时未部署接入节点的网络，如VNO网络。通过本发明实施例的方案，所述用户设备可通过虚拟AN，与虚拟运营商网络之间进行通信。由于虚拟AN可以支持不同的协议，并且所述虚拟AN可以根据用户设备的业务需要进行灵活的配置，有助于实现InP的接入节点能够根据业务需要进行配置，提高配置的灵活性。当用户设备所需的业务发生变化时，虚拟AN对应的虚拟线路和网络功能可经过更新或升级来满足发生变化的业务需求，调整时间短，运维成本低。
下面首先对本发明实施例中涉及到的网元进行说明。
本发明实施例中，用户设备通过物理AN接入第一网络，第一网络中的物理AN可被虚拟成一个或多个虚拟AN，例如，物理AN的每个功能被虚拟成一个虚拟AN；或者第一网络中的多个物理AN也可以被虚拟成一个虚拟AN，例如，多个物理AN的相同功能被虚拟成一个虚拟AN。本发明实施例不对物理AN与虚拟AN的对应关系进行限定。这样，所述用户设备可以通过一个或多个虚拟AN接入一个第二网络，或者通过多个虚拟AN接入多个第二网络。
本发明实施例中的物理AN可以是交换机，数字用户线路接入复用器(Digital Subscriber Line Access Multiplexer，简称DSLAM)，ONU，OLT，有线电缆媒介转换设备(Cable Media Converter，简称CMC)，电缆调制解调器终端系统(Cable Modem Terminal Systems，简称CMTS)或有线电视融合接入平台(Converged Cable Access Platform，CCAP)等设备，本发明实施例不对物理AN的具体实现进行限定。
本发明实施例中，物理AN的物理线路(Physical Line)被虚拟成虚拟线路(Virtual Line)。物理线路可由物理Line ID进行标识。物理Line ID也可称为接入环路标识(Access Loop ID)或电路标识(Circuit ID)。虚拟线路可由Virtual Line ID进行标识。Virtual Line ID也可称为虚拟接入回路标识(Virtual Access Loop ID)或虚拟线路标识(Virtual Circuit ID)。
本发明实施例中，物理线路的标识，即Physical Line ID，和虚拟线路的标识，即Virtual Line ID，的具体格式为：
1、对于第一网络为DSL/ETH时，物理线路的格式具体如下：
若物理线路为异步传输模式(Asynchronous Transfer Mode，简称ATM)的DSL线路，其标识的格式为Access-Node-Identifier atm slot/port:vpi.vci；
若物理线路为ETH的DSL/ETH线路，其标识的格式为Access-Node-Identifier eth slot/port[:vlan-id]。
其中，Access-Node-Identifier为物理AN，如DSLAM，的标识，slot/port为物理AN上的机柜(chassis)号、机架(rack)号、框(frame)号、槽位(slot)号、子槽位(sub-slot)号、端口(port)号的至少一种；vpi.vci为DSL线路上的虚路径标识符和虚通道标识符；vlan-id为虚拟局域网标识符，vlan-id为可选项。
2、对于第二网络为DSL/ETH时，虚拟线路的格式具体如下：
若虚拟线路为ATM的DSL线路，其标识的格式为Access-Node-Identifier atm slot/port:vpi.vci；
若虚拟线路为ETH的DSL/ETH线路，其标识的格式为Access-Node-Identifier eth slot/port[:vlan-id]。
其中，Access-Node-Identifier为虚拟AN的标识，即虚拟AN ID，slot/port为虚拟AN上的机柜(chassis)号、机架(rack)号、框(frame)号、槽位(slot)号、子槽位(sub-slot)号、端口(port)号的至少一种；vpi.vci为DSL线路上的虚路径标识符和虚通道标识符；vlan-id为虚拟局域网标识符，vlan-id为可选项。
3、对于第一网络为PON，物理线路的标识既包括ONU部分的线路标识(line ID)信息，又包括OLT部分的线路标识，具体格式如下：
若物理线路为ATM的DSL线路时，其标识的格式为Access-Node-Identifier atm slot1/port1/ONUID/slot2/port2:vpi.vci；
若物理线路为ETH的DSL/ETH线路时，其标识的格式为 Access-Node-Identifier eth slot1/port1/ONUID/slot2/port2[:vlan-id]。
其中，Access-Node-Identifier为OLT的标识，slot1/port1为OLT上的机柜(chassis)号、机架(rack)号、框(frame)号、槽位(slot)号、子槽位(sub-slot)号、端口(port)号的至少一种；slot2/port2为ONU上的机柜(chassis)号、机架(rack)号、框(frame)号、槽位(slot)号、子槽位(sub-slot)号、端口(port)号的至少一种；ONUID/slot2/port2:vpi.vci为ONU部分的line ID信息，Access-Node-Identifier slot1/port1为OLT部分的物理line ID信息。
4、对于第二网络为PON，虚拟线路的标识既包括ONU部分的线路标识(line ID)信息，又包括OLT部分的线路标识，具体格式如下：
若虚拟线路为ATM的DSL线路时，其标识的格式为Access-Node-Identifier atm slot1/port1/ONUID/slot2/port2:vpi.vci；
若虚拟线路为ETH的DSL/ETH线路时，其标识的格式为Access-Node-Identifier eth slot1/port1/ONUID/slot2/port2[:vlan-id]。
其中，Access-Node-Identifier为OLT的标识，slot1/port1为OLT上的机柜(chassis)号、机架(rack)号、框(frame)号、槽位(slot)号、子槽位(sub-slot)号、端口(port)号的至少一种；slot2/port2为ONU上的机柜(chassis)号、机架(rack)号、框(frame)号、槽位(slot)号、子槽位(sub-slot)号、端口(port)号的至少一种；ONUID/slot2/port2:vpi.vci为ONU部分的line ID信息，Access-Node-Identifier slot1/port1为OLT部分的物理line ID信息。
本发明实施例中的第一网络和第二网络可以属于同一个运营商，即本发明实施例适用于同一个运营商既支持物理AN，又支持虚拟AN的情况，例如同一个运营商用不同的虚拟AN支持不同的业务，即同一个物理网络支持多种业务，从而达到节省物理网络建设成本的目的；第一网络和第二网络也可以属于不同的运营商。
本发明实施例一中，提供了一种在光接入网中建立虚拟接入节点的方法，如图2所示，包括：
31、第一网络中的接入设备在接收到用户设备的第一消息后，获取物理 线路对应的虚拟线路的标识，所述物理线路为所述用户设备与所述第一网络中的物理接入节点AN之间的物理线路，所述虚拟线路为所述用户设备与虚拟AN之间的逻辑线路；
32、所述接入设备根据所述虚拟线路的标识，从第二网络的配置服务器中获取配置信息，所述配置信息用于创建所述虚拟AN；
33、所述接入设备根据所述配置信息创建所述虚拟AN。
本发明实施例中，第一网络中的接入设备在接收到用户设备的第一消息后，能够自动建立物理线路对应的虚拟线路、以及该虚拟线路对应的虚拟AN，使得用户设备与虚拟运营商网络之间的通信，可以通过虚拟AN及其对应的虚拟线路来实现。由于虚拟AN可以支持不同的协议，并且可以根据用户设备的业务需要动态灵活的配置虚拟AN。当用户设备所需业务发生变化时，仅需要更新或升级虚拟AN的虚拟线路和网络功能即可满足业务需求，调整时间短、运维成本低。
本发明实施例中，在第二网络开始建网时可以不部署虚拟AN的虚拟线路和网络功能(Network Function，简称NF)，仅当用户上线并需要通过虚拟线路和虚拟AN接入该第二网络时，再实时部署相应的网络功能，从而有效保护了第二网络的建网投资不浪费。本发明实施例中由第一网络中的接入设备建立虚拟线路和虚拟AN的自动建立，第二网络无需知道虚拟线路和虚拟AN的建立过程，而直接运营，降低了第二网络的运维成本。另外，由于虚拟运营商是以虚拟AN为单位进行管理和控制，而不再直接对物理AN进行管理维护，所以极大降低了运维成本。
本实施例中的第一接入设备可以是第一网络中的物理AN，也可以是由第一网络中的物理AN的控制面分离形成的第一控制器。
在实施中，31中第一网络中的接入设备获取物理线路对应的虚拟线路的标识，包括以下两种可选的实现方式：
方式1、所述接入设备从第一网络的第一服务器中获取所述虚拟线路的标识，具体为：
所述接入设备向第一网络的第一服务器发送第二消息，所述第二消息包括所述物理线路的标识；
所述第一服务器接收到所述接入设备发送的第二消息后，根据所述物理线路的标识，分配所述物理线路对应的虚拟线路的标识；
所述第一服务器将所述虚拟线路的标识发送给所述接入设备；
所述接入设备接收所述第一服务器发送的所述虚拟线路的标识。
该方式下，第一服务器中存储有所述物理线路的标识和所述虚拟线路的标识的对应关系。
方式2、所述接入设备从本地获取所述虚拟线路的标识，具体为：根据第一对应关系和所述物理线路的标识，获得所述虚拟线路的标识，所述对应关系包括所述物理线路的标识和所述虚拟线路的标识。
该方式下，所述接入设备中存储有所述物理线路的标识和所述虚拟线路的标识的对应关系。
本发明实施例二中，提供了另一种在光接入网中建立虚拟接入节点的方法，如图3所示，该方法包括：
41、第二网络中的配置服务器根据虚拟线路的标识，获得配置信息，所述虚拟线路为用户设备与虚拟接入节点AN之间的逻辑线路，所述配置信息用于创建所述虚拟AN；
42、所述配置服务器向第一网络的接入设备发送所述配置信息。
本发明实施例中，第二网络中的配置服务器根据虚拟线路的标识，获得配置信息，并向第一网络的接入设备发送所述配置信息，以使该接入设备能够根据所述配置信息创建虚拟AN，实现了自动建立虚拟AN。
在实施中，41中配置服务器根据虚拟线路的标识，获得配置信息，包括以下两种可选的实现方式：
方式一、所述配置服务器接收到的是所述虚拟线路的标识，具体实现如下：
所述配置服务器接收所述接入设备发送的所述虚拟线路的标识；
所述配置服务器根据第一对应关系和所述虚拟线路的标识，获得所述配置信息，所述第一对应关系包括所述配置信息和所述虚拟线路的标识。
该方式下，所述接入设备可以直接向所述配置服务器发送所述虚拟线路的标识，也可以通过第二网络中的IP边缘节点向述配置服务器发送所述虚拟线路的标识，还可以通过第二网络中的IP边缘节点的控制面分离形成的第二控制器向述配置服务器发送所述虚拟线路的标识，第二控制器用于控制虚拟AN。
方式二、所述配置服务器接收到的是配置信息的标识，具体实现如下：
所述配置服务器接收所述接入设备发送的配置信息的标识，所述配置信息的标识是根据第二对应关系和所述虚拟线路的标识获得的信息，所述第二对应关系包括所述虚拟线路的标识和所述配置信息的标识；
所述配置服务器根据第三对应关系和所述配置信息的标识，获得所述配置信息，所述第三对应关系包括所述配置信息和所述配置信息的标识。
该方式下，所述接入设备可以直接向所述配置服务器发送所述配置信息的标识，也可以通过第二网络中的IP边缘节点(IP edge)向述配置服务器发送所述配置信息的标识，还可以通过第二网络中的IP边缘节点的控制面分离形成的第二控制器向述配置服务器发送所述配置信息的标识，第二控制器用于控制虚拟AN。
下面通过以下几个具体实施例，从各网元的交互流程，对本发明实施例提供的在光接入网中建立虚拟接入节点的方法进行详细说明，各实施例中，第一网络为InP接入网络，第二网络为VNO网络。
本发明实施例提供的实施例三应用的网络架构如图4所示，物理AN被虚拟成两个虚拟AN，即虚拟AN1和虚拟AN2，其中，虚拟AN1通过IP边缘节点1接入VNO1网络，虚拟AN2通过IP边缘节点2接入VNO2网络。本实施例中，由物理AN建立虚拟AN，即虚拟AN1和虚拟AN2。
下面以建立虚拟AN1为例，分别从网元之间的交互采用不同的协议，对本实施例的在光接入网中建立虚拟接入节点的过程进行说明。建立虚拟AN2 的过程与此类似，本实施例不再一一举例说明。
一、网元之间采用动态主机配置协议(Dynamic Host Configuration Protocol，DHCP)。具体过程如图5如下：
601、用户设备，比如CPE/UE，向物理AN发送DHCP消息，所述DHCP消息包括CPE/UE所选择的VNO的标识，即VNO ID。本实施例中的DHCP消息可以为第一消息。
602、物理AN向第一网络中的第一服务器发送AAA消息，所述AAA消息包括物理线路ID。
具体地，物理AN接收到CPE/UE发送的DHCP消息后，获得物理线路ID。所述物理AN向所述第一服务器发送AAA消息。本实施例中所述物理AN向所述第一服务器发送的AAA消息可以为第二消息。
本实施例中，所述第一服务器可以为AAA服务器，本实施例中不对第一服务器的类型进行限定。
603、所述第一服务器根据所述物理线路ID，为所述物理线路ID分配虚拟线路ID。
具体地，所述第一服务器接收到物理AN发送的AAA消息后，获得物理线路ID，所述第一服务器根据获取到的物理线路ID，为所述物理线路ID分配虚拟线路ID。
作为一种可选的实现方式，第一服务器中预先配置有物理线路ID与虚拟线路ID的对应关系。第一服务器根据获取到的物理线路ID和该对应关系，确定出所述物理线路ID对应的虚拟线路ID。
作为另一种可选的实现方式，第一服务器中设置有物理线路ID及其对应的虚拟线路ID池的对应关系。第一服务器根据获取到的物理线路ID和该对应关系，选择相应的虚拟线路ID池，并从所述虚拟线路ID池中选择一个虚拟线路ID分配给所述物理线路ID。本发明实施例不限定具体的选择策略，可以随机选择，也可以按照虚拟线路ID池中虚拟线路ID的编号顺序选择等。
604、第一服务器向物理AN发送AAA消息，所发送的AAA消息中包括 所述虚拟线路ID。
605、物理AN向VNO网络的IP边缘节点1发送DHCP消息，即第三消息，所发送的DHCP消息中包括所述虚拟线路ID。
具体地，物理AN在接收到第一服务器发送的AAA消息后，获得所述虚拟线路ID；物理AN根据CPE/UE发送的DHCP消息中包括的VNO ID，向VNO ID对应的VNO网络中的IP边缘节点1发送DHCP消息。
606、IP边缘节点1向VNO网络中的中的第二服务器发送AAA消息，所发送的AAA消息中包括所述虚拟线路ID。
具体地，IP边缘节点1接收到物理AN发送的DHCP消息后，获得所述虚拟线路ID；IP边缘节点1向第二服务器发送AAA消息。
其中，第二服务器可以为AAA服务器，本实施例中不对第二服务器的类型进行限定。
607、第二服务器向IP边缘节点1发送AAA消息，所发送的AAA消息中包括与所述虚拟线路ID对应的配置信息名和配置服务器地址。
具体地，第二服务器接收到IP边缘节点1发送的AAA消息后，获得所述虚拟线路ID；第二服务器根据预先设置的虚拟线路ID与配置信息名和配置服务器地址的映射关系，确定出与所述虚拟线路ID对应的配置信息名和配置服务器地址，并向IP边缘节点1发送AAA消息。
其中，第二服务器可以为AAA服务器，本实施例中不对第二服务器的类型进行限定。第二服务器中预先设置有虚拟线路ID与配置信息名和配置服务器地址的映射关系。
需要说明的是，配置信息名，即配置信息的标识，用于标识创建虚拟AN所需的配置信息，配置服务器地址，即配置服务器的地址信息，用于存储配置信息。其中，可以将所有虚拟AN对应的配置信息存储于一个配置服务器中，也可以将所有虚拟AN对应的配置信息划分为多个集合，每个集合存储于一个不同的配置服务器。例如，将与相同VNO网络连接的虚拟AN对应的配置信息划分为一个集合，并存储于同一个配置服务器。
其中，配置信息中包括但不限于以下信息中的至少一种：虚拟AN支持的网络功能、业务功能和虚拟AN的端口。虚拟AN的端口可以是虚拟AN与用户侧通信的端口或虚拟AN与网络侧通信的端口。
608、IP边缘节点1向VNO网络中的DHCP服务器发送DHCP消息，所发送的DHCP消息中包括所述虚拟线路ID。
具体地，IP边缘节点1接收到第二服务器发送的AAA消息后，获得所述虚拟线路ID；IP边缘节点1向DHCP服务器发送DHCP消息。
609、DHCP服务器根据虚拟线路ID为CPE/UE分配IP地址信息，其中，所述IP地址为IP地址或IP地址前缀，记为IP地址/IP地址前缀。
具体地，DHCP服务器接收到IP边缘节点1发送的DHCP消息后，获得所述虚拟线路ID；DHCP服务器根据虚拟线路ID为CPE/UE分配IP地址信息。
610、DHCP服务器向IP边缘节点1发送DHCP消息，所发送的DHCP消息中包括所分配的IP地址信息、以及所述虚拟线路ID。
611、IP边缘节点1将所分配的IP地址信息与所述虚拟线路ID进行绑定。
具体地，IP边缘节点1接收到DHCP服务器发送的DHCP消息后，获得所分配的IP地址信息、以及所述虚拟线路ID；IP边缘节点1将所分配的IP地址信息与所述虚拟线路ID进行绑定。
612、IP边缘节点1向物理AN发送DHCP消息，所发送的DHCP消息中包括所分配的IP地址信息、所述虚拟线路ID、所述配置信息名和所述配置服务器地址。
613、物理AN形成所述物理线路ID与所述虚拟线路ID的映射关系。
具体地，物理AN接收到IP边缘节点1发送的DHCP消息后，获得所分配的IP地址信息、所述虚拟线路ID、配置信息名和配置服务器地址；物理AN形成所述物理线路ID与所述虚拟线路ID的映射关系。
可选的，物理AN将所分配的IP地址/IP地址前缀与所述物理线路ID绑定。
614、物理AN将虚拟线路ID转换为物理线路ID。
具体地，物理AN根据接收到的DHCP消息中包括的虚拟线路ID，确定出所述虚拟线路ID对应的物理线路ID。
615、物理AN向CPE/UE发送DHCP消息，所发送的DHCP消息中包括IP地址信息。
具体地，物理AN删除接收到的DHCP消息中的虚拟线路ID，并通过所述物理线路ID对应的物理线路将该DHCP消息发送给CPE/UE。
可选的，所发送的DHCP消息中包括VNO ID，以使CPE/UE根据接收到的DHCP消息包括的VNO ID，选择VNO ID对应的运营商进行后续操作处理，如上网操作/语音通话等。
616、物理AN触发创建相应的虚拟AN。
二、网元之间采用可扩展身份验证协议(Extensible Authentication Protocol，EAP)。具体过程如图6如下：
701、CPE/UE向物理AN发送EAP消息，即第一消息，所发送的EAP消息中包括自身所选择的VNO ID。
702、物理AN向第一网络中的第一服务器发送AAA消息，即第二消息，所发送的AAA消息中包括物理线路的标识。
具体地，物理AN接收到CPE/UE发送的EAP消息后，获得物理线路的标识；物理AN向第一服务器发送AAA消息，以使第一服务器为所述物理线路ID分配虚拟线路的标识。
703和704分别参见图5所示的实施例中的603和604的相关描述。
705、物理AN向VNO网络的IP边缘节点1发送EAP消息，即第三消息，所发送的EAP消息中包括所述虚拟线路ID。
具体地，物理AN在接收到第一服务器发送的AAA消息后，获得所述虚拟线路ID；物理AN根据CPE/UE发送的EAP消息中包括的VNO ID，向VNO ID对应的VNO网络中的IP边缘节点1发送EAP消息。
706、IP边缘节点1向VNO网络中的中的第二服务器发送AAA消息， 所发送的AAA消息中包括所述虚拟线路ID。
具体地，IP边缘节点1接收到物理AN发送的EAP消息后，获得所述虚拟线路ID；IP边缘节点1向第二服务器发送AAA消息。
其中，第二服务器的描述参见图5所示的实施例中的相关描述。
707参见图5所示的实施例中的607的相关描述。
708、IP边缘节点1向物理AN发送EAP消息，所发送的EAP消息中包括所述配置信息名和所述配置服务器地址。
可选的，所发送的EAP消息中还包括所述虚拟线路ID。
其中，若所发送的EAP消息中未包括所述虚拟线路ID，则IP边缘节点1利用IP边缘节点1与物理AN之间的通道的通道ID来携带虚拟线路ID，这要求IP边缘节点1能根据通道ID确定出相应的虚拟线路ID，例如IP边缘节点1可维护通道ID与相应的虚拟线路ID的映射关系。
709、物理AN形成所述物理线路ID与所述虚拟线路ID的映射关系。
具体地，物理AN接收到IP边缘节点1发送的EAP消息后，获得所述虚拟线路ID；物理AN形成所述物理线路ID与所述虚拟线路ID的映射关系。
710、物理AN向CPE/UE发送EAP消息。
具体地，物理AN根据接收到的EAP消息中包括的虚拟线路ID，确定出所述虚拟线路ID对应的物理线路ID，并通过所述物理线路ID对应的物理线路向CPE/UE发送EAP消息，以使CPE/UE根据该EAP消息进行认证应答。
可选的，所发送的EAP消息中包括VNO ID，以使CPE/UE根据接收到的EAP消息包括的VNO ID，选择VNO ID对应的运营商进行后续操作处理，如上网操作/语音通话等。
711、物理AN触发创建相应的虚拟AN。
在图5和图6所示的实施例中，物理AN触发在网络设备，如物理AN，或数据中心的服务器上创建相应的虚拟AN的过程如图7所示，包括：
801、物理AN获取第一网络中的第一服务器分配的虚拟线路ID对应的虚拟AN的标识，即虚拟AN ID，配置信息名和配置服务器地址；
其中，由于虚拟线路ID中包括Access-Node-Identifier域，而虚拟线路ID中的Access-Node-Identifier域的域值为虚拟AN ID，因此，可以从虚拟线路ID中获取虚拟AN ID。
802、物理AN向配置服务器发送请求消息，以请求获取虚拟线路ID对应的配置信息。
具体地，物理AN根据配置服务器地址，向配置服务器发送请求消息，以请求获取虚拟线路ID对应的配置信息，其中，所述请求消息包括配置信息名或虚拟线路ID。
803、配置服务器向物理AN返回所述虚拟线路ID对应的虚拟AN的配置信息。
具体地，配置服务器接收到物理AN发送的请求消息后，采用上述方式一或方式二，获得相应的配置信息。
其中，配置服务器中设置有各虚拟线路ID对应的虚拟AN的配置信息，配置信息以配置信息名为条目进行存储。
804、物理AN触发建立虚拟线路对应的虚拟AN。
具体地，物理AN接收到配置服务器返回的配置信息，根据所述配置信息，触发建立虚拟线路对应的虚拟AN。
可选的，该过程还包括如下内容：
805、物理AN根据所述配置信息，为所述虚拟线路对应的虚拟AN分配网络功能。
具体地，物理AN根据所述配置信息中用于表示所述用户设备在第二网络中注册的业务对应的网络功能的信息，为所述虚拟线路对应的虚拟AN分配网络功能。
举例说明，假设用户设备在第二网络中订购了家庭业务，该家庭业务对应的网络功能是指虚拟AN实现家庭业务时需要具有的网络功能，根据该家庭业务对应的网络功能的信息，为虚拟AN分配相应的网络功能，以使虚拟AN能够实现用户设备订购的家庭业务。
可选的，本实施例805中还包括：
物理AN根据所述配置信息中用于表示所述用户设备在第二网络中注册的业务对应的业务功能的信息，为虚拟AN分配业务功能(Service Function，SF)；
和/或
物理AN根据所述配置信息中用于表示所述用户设备在第二网络中注册的业务对应的业务功能的信息和所述业务功能的执行顺序，为虚拟AN建立相应的业务功能链(Service Function Chain，SFC)。
举例说明，仍以用户设备在第二网络中订购了家庭业务，为虚拟AN分配业务功能包括防火墙、家长控制、深度包检测等，为虚拟AN建立相应的业务功能链为上述业务功能的执行顺序。
本实施例中，虚拟AN除了可以运行在物理AN上，还可以运行在控制器上，还可以运行在服务器上。可选的，若虚拟AN运行在服务器上，还包括：
806、物理AN建立自身与虚拟AN之间的用于进行通信的通道。
具体地，物理AN配置物理AN上的通道端点，如虚拟隧道终点(Virtual Tunnel EndPoint，VTEP)；以及配置虚拟AN或虚拟AN所在网关的通道端点，如VTEP，从而建立自身与虚拟AN之间的通道。
807、物理AN配置虚拟AN对应的线路参数。其中，线路参数包括但不限于以下参数中的至少一种：带宽参数、QoS参数、线路类型等。
通过上述过程可以自动建立虚拟AN，之后物理AN可以通知InP接入网络和VNO网络中的服务器，即第一服务器和第二服务器，对虚拟线路和相应的NF/SF进行计费。
本发明实施例提供的实施例四应用的网络架构如图8所示，物理AN的控制面与转发面进行分离，物理AN的控制面的功能集成到控制器1中，物理AN的虚拟化在控制器1上实现，控制器1支持对不同VNO呈现不同虚拟AN和虚拟线路，不同虚拟AN和虚拟线路可以被不同VNO控制。物理AN在控制器1上被虚拟成两个虚拟AN，即虚拟AN1和虚拟AN2，其中，CPE/UE 通过虚拟AN1接入VNO1网络，CPE/UE通过虚拟AN2接入VNO2网络。图6所示的网络架构中，控制器分别与VNO网络中的配置服务器、第二服务器和DHCP服务器连接。本实施例中，由控制器1建立虚拟线路对应的虚拟AN，即虚拟AN1和虚拟AN2。
下面以建立虚拟AN1为例，分别从网元之间的交互采用不同的协议，对本实施例的在光接入网中建立虚拟接入节点的过程进行说明。建立虚拟AN2的过程与此类似，本实施例不再一一举例说明。
一、网元之间采用DHCP，具体过程如图9如下：
1001参见图5所示的实施例中601的相关描述。
1002、物理AN将DHCP消息和物理线路ID承载于隧道，发送给控制器1。
具体地，物理AN接收到CPE/UE发送的DHCP消息后，将该DHCP消息和物理线路ID承载于物理AN与控制器1之间的用于通信的隧道，发送给控制器1。
1003、控制器1向第一网络中的第一服务器发送AAA消息，即第二消息，所发送的AAA消息中包括所述物理线路ID。
具体地，控制器1通过所述隧道接收到物理AN发送的DHCP消息和所述物理线路ID；控制器1向第一服务器发送AAA消息，以使第一服务器为所述物理线路ID分配虚拟线路ID。
本实施例中，控制器1接收到物理AN发送的VNO ID后，还确定出所述VNO ID对应的VNO。
1004具体参见图5所示的实施例中的603的相关描述。
具体地，第一服务器接收到控制器1发送的AAA消息后，获得所述物理线路ID。
1005、第一服务器向控制器1发送AAA消息，即第三消息，所发送的AAA消息中包括所分配的虚拟线路ID。
1006、控制器1向VNO网络中的第二服务器发送AAA消息，所发送的 AAA消息中包括所述虚拟线路ID。
具体地，控制器1接收到第一服务器发送的AAA消息后，获得所述虚拟线路ID；控制器1根据CPE/UE发送的DHCP消息中包括的VNO ID，向VNO ID对应的VNO网络中的第二服务器发送AAA消息。
1007、第二服务器向控制器1发送AAA消息，所发送的AAA消息中包括与所述虚拟线路ID对应的配置信息名和配置服务器地址。
具体地，第二服务器接收到控制器1发送的AAA消息后，获得所述虚拟线路ID；第二服务器根据预先设置的虚拟线路ID与配置信息名和配置服务器地址的映射关系，确定出与所述虚拟线路ID对应的配置信息名和配置服务器地址，并向控制器1发送AAA消息。
其中，第二服务器、配置信息名、配置服务器地址、以及配置信息具体参见图5所示的实施例中的相关描述。
1008、控制器1向VNO网络中的DHCP服务器发送DHCP消息，所发送的DHCP消息中包括所述虚拟线路ID。
具体地，控制器1接收到第二服务器发送的AAA消息后，获得所述虚拟线路ID；控制器1向DHCP服务器发送DHCP消息。
1009参见图5所示的实施例中609的相关描述。
1010、DHCP服务器向控制器1发送DHCP消息，所发送的DHCP消息中包括所分配的IP地址信息、以及所述虚拟线路ID。
1011、控制器1形成所述物理线路ID与所述虚拟线路ID的映射关系，并将所分配的IP地址信息与所述物理线路ID绑定。
具体地，控制器1接收到DHCP服务器发送的DHCP消息后，获取所分配的IP地址信息、以及所述虚拟线路ID；控制器1形成所述物理线路ID与所述虚拟线路ID的映射关系，并将所分配的IP地址信息与所述物理线路ID绑定。
1012、控制器1将接收到的DHCP消息中的虚拟线路ID转换为物理线路ID。
1013、控制器1通过所述隧道向物理AN发送该DHCP消息，其中，该DHCP消息包括所述物理线路ID、IP地址信息。
1014、物理AN向CPE/UE发送DHCP消息。
具体地，物理AN接收到控制器1发送的DHCP消息后，确定所述物理线路ID对应的物理线路，并通过该物理线路向CPE/UE发送DHCP消息。
可选的，所发送的DHCP消息中包括VNO ID，以使CPE/UE根据接收到的DHCP消息包括的VNO ID，选择VNO ID对应的运营商进行后续操作处理，如上网操作/语音通话等。
1015、控制器1触发创建相应的虚拟AN。
二、网元之间采用EAP，具体过程如图10如下：
1101参见图6所示的实施例中701的相关描述。
1102、物理AN将EAP消息和物理线路ID承载于隧道，发送给控制器1。具体过程与图9所示的实施例中的1002类似。
1103～1107分别参见图9所示的实施例中的1003～1107。
1108、控制器1形成所述物理线路ID与所述虚拟线路ID的映射关系。
具体地，控制器1接收到第二服务器发送的AAA消息后，形成所述物理线路ID与所述虚拟线路ID的映射关系。
1109、控制器1通过所述隧道向物理AN发送EAP消息。
1110、物理AN向CPE/UE发送EAP消息。
具体地，物理AN接收到控制器1发送的EAP消息后，确定出所述物理线路ID对应的物理线路，并通过该物理线路向CPE/UE发送EAP消息，以使CPE/UE根据该EAP消息在虚拟运营商网络中的AAA服务器中进行认证。
可选的，所发送的EAP消息中包括VNO ID，以使CPE/UE根据接收到的EAP消息包括的VNO ID，选择VNO ID对应的运营商进行后续操作处理，如上网操作/语音通话等。
1111、控制器1触发创建相应的虚拟AN。
在图9和图10所示的实施例中，控制器1触发创建相应的虚拟AN的过 程如图11所示，包括：
1201～1205参见图7所示的实施例中801～805的相关描述，本实施例与图7所示的实施例的区别是本实施例的执行主体为控制器1，图7所示的实施例的执行主体为物理AN。
本实施例中，虚拟AN除了可以运行在物理AN上，还可以运行在控制器上，还可以运行在服务器上。可选的，若虚拟AN运行在服务器上，还包括：
1206、控制器1还建立物理AN与虚拟AN或虚拟AN所在网关之间的用于进行通信的通道。
具体为：控制器1配置物理AN上的通道端点，如VTEP；以及控制器1配置虚拟AN或虚拟AN所在网关的通道端点，如VTEP，从而建立物理AN与虚拟AN之间的通道。
1207参见图7所示的实施例中807的相关描述，本实施例与图7所示的实施例的区别是本实施例的执行主体为控制器1，图7所示的实施例的执行主体为物理AN。
本发明实施例提供的实施例六应用的网络架构如图12所示，物理AN的控制面与转发面进行分离，物理AN的控制面的功能集成到控制器1中，物理AN的虚拟化在控制器1上实现，控制器1支持对不同VNO呈现不同虚拟AN和虚拟线路，不同虚拟AN和虚拟线路可以被不同VNO控制。物理AN在控制器1上被虚拟成两个虚拟AN，即虚拟AN1和虚拟AN2，其中，CPE/UE通过虚拟AN1接入VNO1网络，CPE/UE通过虚拟AN2接入VNO2网络。图7所示的网络架构中，控制器1与分别与VNO1网络和VNO2网络中的配置服务器连接，IP边缘节点1分别与VNO1网络中的第二服务器和DHCP服务器连接，IP边缘节点2分别与VNO2网络中的第二服务器和DHCP服务器连接。本实施例中，由控制器1建立虚拟线路对应的虚拟AN，即虚拟AN1和虚拟AN2。
下面以建立虚拟AN1为例，分别从网元之间的交互采用不同的协议，对本实施例的在光接入网中建立虚拟接入节点的过程进行说明。建立虚拟AN2 的过程与此类似，本实施例不再一一举例说明。
一、网元之间采用DHCP，具体过程如图13如下：
1401～1405，具体参见图9所示实施例中的1001～1005的相关描述。
1406～1415分别参见图5所示的实施例中605～614的相关描述，本实施例与图5所示的实施例的区别是本实施例的执行主体为控制器1，图5所示的实施例的执行主体为物理AN。
1416～1418分别参见图9所示的实施例中1013～1015的相关描述。
二、网元之间采用EAP，具体过程如图14如下：
1501～1505，具体参见图10所示的实施例中的1101～1105的相关描述。
1506～1510、具体参见图6所示的实施例中的705～709的相关描述，本实施例与图6所示的实施例的区别是本实施例的执行主体为控制器1，图6所示的实施例的执行主体为物理AN。
1511～1513具体参见图10所示的实施例中的1109～1111的相关描述.
在图13和图14所示的实施例中，控制器1触发创建相应的虚拟AN的过程具体参见图11所示的实施例中的相关描述。
本发明实施例提供的实施例六应用的网络架构如图15所示，物理AN的控制面与转发面进行分离，物理AN的控制面的功能集成到控制器1中，物理AN的虚拟化在控制器1上实现，控制器1支持对不同VNO呈现不同虚拟AN和虚拟线路，不同虚拟AN和虚拟线路可以被不同VNO控制。物理AN在控制器1上被虚拟成两个虚拟AN，即虚拟AN1和虚拟AN2，其中，CPE/UE通过虚拟AN1接入VNO1网络，CPE/UE通过虚拟AN2接入VNO2网络。IP边缘节点1的控制面的功能集成到控制器2中。图15所示的网络架构中，控制器1分别与VNO1网络和VNO2网络中的配置服务器连接，控制器2分别与VNO1网络中的第二服务器和DHCP服务器连接，虚拟AN1与控制器2连接。本实施例中，由控制器1建立虚拟线路对应的虚拟AN，即虚拟AN1和虚拟AN2。
本实施例中，若网元之间采用DHCP，则本实施例提供的在光接入网中 建立虚拟接入节点的过程具体参见图13所示的实施例的描述，其中，控制器2执行IP边缘节点1的步骤。
本实施例中，若网元之间采用EAP，则本实施例提供的在光接入网中建立虚拟接入节点的过程具体参见图14所示的实施例的描述，其中，控制器2执行IP边缘节点1的步骤。
上述方法处理流程可以用软件程序实现，该软件程序可以存储在存储介质中，当存储的软件程序被调用时，执行上述方法。
基于同一发明构思，本发明实施例七中，提供了一种接入设备，所述接入设备应用于第一网络中，本实施例提供的接入设备的实施可参见图2所示的实施例中的相关描述。如图16所示，所述接入设备包括：
第一获取模块1701，用于在接收到用户设备的第一消息后，获取物理线路对应的虚拟线路的标识，所述物理线路为所述用户设备与所述第一网络中的物理接入节点AN之间的物理线路，所述虚拟线路为所述用户设备与虚拟AN之间的逻辑线路；
第二获取模块1702，用于根据所述虚拟线路的标识，从第二网络的配置服务器中获取配置信息，所述配置信息用于创建所述虚拟AN；
创建模块1703，用于根据所述配置信息创建所述虚拟AN。
作为一种可选的实现方式，所述第一获取模块1701具体用于：
向第一网络的第一服务器发送第二消息，所述第二消息包括所述物理线路的标识；以及接收所述第一服务器发送的所述虚拟线路的标识。
作为另一种可选的实现方式，所述第一获取模块1701具体用于：
根据对应关系和所述物理线路的标识，获得所述虚拟线路的标识，所述对应关系包括所述物理线路的标识和所述虚拟线路的标识。
可选的，所述第一消息还包括所述第二网络的标识，所述第二获取模块1702具体用于：
根据所述第一消息中的所述第二网络的标识，向所述第二网络中的第二服务器发送第三消息，所述第三消息包括所述虚拟线路的标识；接收所述第 二服务器发送的所述配置信息的标识和所述配置服务器的地址信息；根据所述配置信息的标识，从所述地址信息对应的配置服务器获取所述配置信息。
基于同一发明构思，本发明实施例七中，提供了一种服务器，所述服务器应用于第二网络，本实施例提供的服务器的实施可参见图3所示的实施例中的相关描述。如图17所示，所述服务器包括：
获取模块1801，用于根据虚拟线路的标识，获得配置信息，所述虚拟线路为用户设备与虚拟接入节点AN之间的逻辑线路，所述配置信息用于创建所述虚拟AN；
发送模块1802，用于向第一网络的接入设备发送所述配置信息。
作为一种可选的实现方式，所述获取模块1801具体用于：
接收所述接入设备发送的所述虚拟线路的标识；根据第一对应关系和所述虚拟线路的标识，获得所述配置信息，所述第一对应关系包括所述配置信息和所述虚拟线路的标识。
作为另一种可选的实现方式，所述获取模块1801具体用于：所述获取模块具体用于：
接收所述接入设备发送的配置信息的标识，所述配置信息的标识是根据第二对应关系和所述虚拟线路的标识获得的信息，所述第二对应关系包括所述虚拟线路的标识和所述配置信息的标识；根据第三对应关系和所述配置信息的标识，获得所述配置信息，所述第三对应关系包括所述配置信息和所述配置信息的标识。
基于同一发明构思，本发明实施例九中，提供了另一种接入设备，所述接入设备应用于第一网络中，如图18所示，所述接入设备包括：处理器1901、输入接口1902、输出接口1903、存储器1904和系统总线1905；其中：
处理器1901负责逻辑运算和处理。在服务器运行时，处理器1901读取存储器1904中的程序，并执行图2所示的实施例提供的方法，具体为：
在输入接口1902接收到用户设备的第一消息后，获取物理线路对应的虚拟线路的标识，所述物理线路为所述用户设备与所述第一网络中的物理接入 节点AN之间的物理线路，所述虚拟线路为所述用户设备与虚拟AN之间的逻辑线路；根据所述虚拟线路的标识，从第二网络的配置服务器中获取配置信息，所述配置信息用于创建所述虚拟AN；根据所述配置信息创建所述虚拟AN。
存储器1904包括内存和硬盘，可以存储处理器1901在执行操作时所使用的数据。输入接口1902用于在处理器1901的控制下读入数据，输出接口1903在处理器1901的控制下输出数据。
总线架构可以包括任意数量的互联的总线和桥，具体由处理器1901代表的一个或多个处理器和存储器1904代表的内存和硬盘的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。
作为一种可选的实现方式，处理器1901读取存储器1904中的程序，并具体执行：
向第一网络的第一服务器发送第二消息，所述第二消息包括所述物理线路的标识；以及接收所述第一服务器发送的所述虚拟线路的标识。
作为另一种可选的实现方式，处理器1901读取存储器1904中的程序，并具体执行：
根据对应关系和所述物理线路的标识，获得所述虚拟线路的标识，所述对应关系包括所述物理线路的标识和所述虚拟线路的标识。
可选的，所述第一消息还包括所述第二网络的标识，处理器1901读取存储器1904中的程序，并具体执行：
根据所述第一消息中的所述第二网络的标识，向所述第二网络中的第二服务器发送第三消息，所述第三消息包括所述虚拟线路的标识；接收所述第二服务器发送的所述配置信息的标识和所述配置服务器的地址信息；根据所述配置信息的标识，从所述地址信息对应的配置服务器获取所述配置信息。
基于同一发明构思，本发明实施例十中，提供了一种服务器，所述服务 器应用于第二网络，如图19所示，所述服务器包括：
处理器2001、输入接口2002、输出接口2003、存储器2004和系统总线2005；其中：
处理器2001负责逻辑运算和处理。处理器2001读取存储器2004中的程序，并执行图3所示的实施例的方法，具体为：
根据虚拟线路的标识，获得配置信息，所述虚拟线路为用户设备与虚拟接入节点AN之间的逻辑线路，所述配置信息用于创建所述虚拟AN；控制输出接口2003向第一网络的接入设备发送所述配置信息。
存储器2004包括内存和硬盘，可以存储处理器2001在执行操作时所使用的数据。输入接口2002用于在处理器2001的控制下读入数据，输出接口2003在处理器2001的控制下输出数据。
总线架构可以包括任意数量的互联的总线和桥，具体由处理器2001代表的一个或多个处理器和存储器2004代表的内存和硬盘的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。
作为一种可选的实现方式，处理器2001读取存储器2004中的程序，并具体执行：
通过输入接口2002接收所述接入设备发送的所述虚拟线路的标识；根据第一对应关系和所述虚拟线路的标识，获得所述配置信息，所述第一对应关系包括所述配置信息和所述虚拟线路的标识。
作为另一种可选的实现方式，处理器2001读取存储器2004中的程序，并具体执行：
通过输入接口2002接收所述接入设备发送的配置信息的标识，所述配置信息的标识是根据第二对应关系和所述虚拟线路的标识获得的信息，所述第二对应关系包括所述虚拟线路的标识和所述配置信息的标识；根据第三对应关系和所述配置信息的标识，获得所述配置信息，所述第三对应关系包括所 述配置信息和所述配置信息的标识。
本领域内的技术人员应明白，本发明的实施例可提供为方法、系统、或计算机程序产品。因此，本发明可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本发明可采用在一个或多个其中包括有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本发明是参照根据本发明实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
最后应说明的是：以上实施例仅用以示例性说明本发明的技术方案，而非对其限制；尽管参照前述实施例对本发明及本发明带来的有益效果进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明权利要求的范围。

Claims (14)

  1. 一种在光接入网中建立虚拟接入节点的方法，其特征在于，该方法包括：
    第一网络中的接入设备在接收到用户设备的第一消息后，获取物理线路对应的虚拟线路的标识，所述物理线路为所述用户设备与所述第一网络中的物理接入节点AN之间的物理线路，所述虚拟线路为所述用户设备与虚拟AN之间的逻辑线路；
    所述接入设备根据所述虚拟线路的标识，从第二网络的配置服务器中获取配置信息，所述配置信息用于创建所述虚拟AN；
    所述接入设备根据所述配置信息创建所述虚拟AN。
  2. 如权利要求1所述的方法，其特征在于，所述接入设备获取物理线路对应的虚拟线路的标识，包括：
    所述接入设备向第一网络的第一服务器发送第二消息，所述第二消息包括所述物理线路的标识；
    所述接入设备接收所述第一服务器发送的所述虚拟线路的标识。
  3. 如权利要求1所述的方法，其特征在于，所述接入设备获取物理线路对应的虚拟线路的标识，包括：
    所述接入设备根据对应关系和所述物理线路的标识，获得所述虚拟线路的标识，所述对应关系包括所述物理线路的标识和所述虚拟线路的标识。
  4. 如权利要求1所述的方法，其特征在于，所述第一消息还包括所述第二网络的标识，所述接入设备根据所述虚拟线路的标识，从第二网络的配置服务器中获取配置信息，包括：
    所述接入设备根据所述第一消息中的所述第二网络的标识，向所述第二网络中的第二服务器发送第三消息，所述第三消息包括所述虚拟线路的标识；
    所述接入设备接收所述第二服务器发送的所述配置信息的标识和所述配置服务器的地址信息；
    所述接入设备根据所述配置信息的标识，从所述地址信息对应的配置服务器获取所述配置信息。
  5. 一种在光接入网中建立虚拟接入节点的方法，其特征在于，该方法包括：
    第二网络中的配置服务器根据虚拟线路的标识，获得配置信息，所述虚拟线路为用户设备与虚拟接入节点AN之间的逻辑线路，所述配置信息用于创建所述虚拟AN；
    所述配置服务器向第一网络的接入设备发送所述配置信息。
  6. 根据权利要求5所述的方法，其特征在于，所述第二网络中的配置服务器根据虚拟线路的标识，获得配置信息，包括：
    所述配置服务器接收所述接入设备发送的所述虚拟线路的标识；
    所述配置服务器根据第一对应关系和所述虚拟线路的标识，获得所述配置信息，所述第一对应关系包括所述配置信息和所述虚拟线路的标识。
  7. 根据权利要求5所述的方法，其特征在于，所述第二网络中的配置服务器根据虚拟线路的标识，获得配置信息包括：
    所述配置服务器接收所述接入设备发送的配置信息的标识，所述配置信息的标识是根据第二对应关系和所述虚拟线路的标识获得的信息，所述第二对应关系包括所述虚拟线路的标识和所述配置信息的标识；
    所述配置服务器根据第三对应关系和所述配置信息的标识，获得所述配置信息，所述第三对应关系包括所述配置信息和所述配置信息的标识。
  8. 一种接入设备，其特征在于，所述接入设备应用于第一网络中，所述接入设备包括：
    第一获取模块，用于在接收到用户设备的第一消息后，获取物理线路对应的虚拟线路的标识，所述物理线路为所述用户设备与所述第一网络中的物理接入节点AN之间的物理线路，所述虚拟线路为所述用户设备与虚拟AN之间的逻辑线路；
    第二获取模块，用于根据所述虚拟线路的标识，从第二网络的配置服务 器中获取配置信息，所述配置信息用于创建所述虚拟AN；
    创建模块，用于根据所述配置信息创建所述虚拟AN。
  9. 如权利要求8所述的接入设备，其特征在于，所述第一获取模块具体用于：
    向第一网络的第一服务器发送第二消息，所述第二消息包括所述物理线路的标识；以及接收所述第一服务器发送的所述虚拟线路的标识。
  10. 如权利要求8所述的接入设备，其特征在于，所述第一获取模块具体用于：
    根据对应关系和所述物理线路的标识，获得所述虚拟线路的标识，所述对应关系包括所述物理线路的标识和所述虚拟线路的标识。
  11. 如权利要求8所述的接入设备，其特征在于，所述第一消息还包括所述第二网络的标识，所述第二获取模块具体用于：
    根据所述第一消息中的所述第二网络的标识，向所述第二网络中的第二服务器发送第三消息，所述第三消息包括所述虚拟线路的标识；接收所述第二服务器发送的所述配置信息的标识和所述配置服务器的地址信息；根据所述配置信息的标识，从所述地址信息对应的配置服务器获取所述配置信息。
  12. 一种服务器，其特征在于，所述服务器应用于第二网络，所述服务器包括：
    获取模块，用于根据虚拟线路的标识，获得配置信息，所述虚拟线路为用户设备与虚拟接入节点AN之间的逻辑线路，所述配置信息用于创建所述虚拟AN；
    发送模块，用于向第一网络的接入设备发送所述配置信息。
  13. 根据权利要求12所述的服务器，其特征在于，所述获取模块具体用于：
    接收所述接入设备发送的所述虚拟线路的标识；根据第一对应关系和所述虚拟线路的标识，获得所述配置信息，所述第一对应关系包括所述配置信息和所述虚拟线路的标识。
  14. 根据权利要求12所述的服务器，其特征在于，所述获取模块具体用于：
    接收所述接入设备发送的配置信息的标识，所述配置信息的标识是根据第二对应关系和所述虚拟线路的标识获得的信息，所述第二对应关系包括所述虚拟线路的标识和所述配置信息的标识；根据第三对应关系和所述配置信息的标识，获得所述配置信息，所述第三对应关系包括所述配置信息和所述配置信息的标识。
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