WO2018171124A1 - 一种资源分配方法、服务器、光线路终端及系统 - Google Patents

一种资源分配方法、服务器、光线路终端及系统 Download PDF

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Publication number
WO2018171124A1
WO2018171124A1 PCT/CN2017/100577 CN2017100577W WO2018171124A1 WO 2018171124 A1 WO2018171124 A1 WO 2018171124A1 CN 2017100577 W CN2017100577 W CN 2017100577W WO 2018171124 A1 WO2018171124 A1 WO 2018171124A1
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Prior art keywords
flow table
cpe
server
vlan
vlan resource
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PCT/CN2017/100577
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English (en)
French (fr)
Inventor
刁渊炯
臧美燕
袁立权
李玉峰
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中兴通讯股份有限公司
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Publication of WO2018171124A1 publication Critical patent/WO2018171124A1/zh

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    • 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
    • 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]
    • H04L12/4675—Dynamic sharing of VLAN information amongst network nodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/70—Admission control; Resource allocation
    • H04L47/76—Admission control; Resource allocation using dynamic resource allocation, e.g. in-call renegotiation requested by the user or requested by the network in response to changing network conditions
    • 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

Definitions

  • the present application relates to, but is not limited to, the field of wireless communication technologies, and in particular, to a resource allocation method, a server, an optical line terminal, and a system.
  • SDN Software Defined Network
  • SDN is a new type of network architecture designed to separate the control and forwarding of the network and implement programmable control of the underlying devices to achieve open and flexible network configuration.
  • SDN breaks the traditional closed and rigid control system based on the formation of proprietary network elements, which provides new ideas for the development of access networks, such as separation of control and forwarding, centralized control, etc.
  • the device gradually has intelligent control functions, provides the ability to integrate services, simplifies the operation process, and improves the efficiency of network operation and maintenance.
  • the access network system includes a Digital Subscriber Line (DSL) system or a Passive Optical Network (PON) system; a schematic diagram of a system architecture of an access network under an SDN architecture, as shown in FIG.
  • An SDN controller controls multiple access network systems. In this case, if a traditional virtual local area network (VLAN) resource allocation method is applied, that is, statically configuring VLAN resources, the SDN controller is in the right state. When users perform service management, there is a problem of waste of VLAN resources and insufficient VLAN resources.
  • VLAN virtual local area network
  • the embodiment of the present application provides a resource allocation method, a server, and an optical line terminal.
  • the embodiment of the present application provides a resource allocation method, where the method is applied to a server, including: when determining that a state of a Customer Premise Equipment (CPE) is online, sending a first flow table to receive an optical line An authentication message sent by the terminal (Optical Line Terminal, OLT) based on the first flow table; after the authentication message is passed, the authentication is obtained. a VLAN resource corresponding to the CPE of the packet; updating the first flow table to a second flow table for characterizing a VLAN resource allocation manner based on the VLAN resource, and sending a second flow table, so that the OLT and the optical network unit (Optical Network Unit, ONT) performs VLAN resource allocation on the CPE according to the second flow table.
  • CPE Customer Premise Equipment
  • OLT Optical Line Terminal
  • ONT optical Network Unit
  • the server determines that the status of the CPE is online, and may include:
  • the server receives a message that the OLT is sent by the SDN controller, and the user network interface (UNI) status is a connection.
  • the acquiring the VLAN resource of the CPE corresponding to the authentication packet may include:
  • the server sends a request for acquiring a VLAN resource of the CPE to an Authentication Authorization Accounting (AAA) server via a virtual broadband network gateway (vBNG) or a broadband network gateway (BNG). a message, or the server directly sends a request message for acquiring the VLAN resource of the CPE to the AAA server;
  • AAA Authentication Authorization Accounting
  • an identifier for acquiring a VLAN resource corresponding to the CPE which is sent by using the request message and the pre-stored user information data, where the identifier code is used to indicate a unique vBNG or BNG;
  • the server acquires a VLAN resource corresponding to the CPE based on the identifier.
  • the updating, by the VLAN resource, the first flow table to a second flow table for characterizing a distribution manner of the VLAN resource may include:
  • the first flow table Updating, according to the line identification information and the service processing node information in the VLAN resource, the first flow table to a second flow table for characterizing a distribution manner of the VLAN resource.
  • the method may further include: the server deleting the VLAN resource.
  • the method may further include: setting a lifetime of the VLAN resource;
  • the VLAN resource is released when the network connection status of the CPE is not established, and the time is greater than or equal to the usage period.
  • the sending the second flow table may include:
  • the server sends the second flow table to the OLT and the ONT.
  • the embodiment of the present application further provides a resource allocation method, where the method is applied to an OLT, including:
  • the method may further include: the OLT transmitting the second flow table to the ONT.
  • the OLT notifies the server that the status of the CPE is online, and may include:
  • the OLT sends a UNI state of the ONT to the SDN controller as a connection, so that the SDN controller notifies the server that the state of the CPE is online.
  • the embodiment of the present application further provides a server, where the server includes: a first sending module, an obtaining module, an updating module, and a second sending module;
  • the first sending module is configured to: when the status of the CPE is determined to be online, send the first flow table, to receive the authentication message sent by the OLT based on the first flow table;
  • the acquiring module is configured to obtain a VLAN resource of the CPE corresponding to the authentication packet after the authentication packet is passed;
  • the update module is configured to update the first flow table to a second flow table for characterizing the VLAN resource allocation manner based on the VLAN resource;
  • the second sending module is configured to send a second flow table, so that the OLT and the ONT perform VLAN resource allocation on the CPE according to the second flow table.
  • the first sending module may be configured to receive a message that the UNI sent by the OLT via the SDN controller is a connection.
  • the acquiring module may be configured to send, by using a vBNG or a BNG, a request message for acquiring a VLAN resource corresponding to the CPE to an AAA server, or directly sending, to the AAA server, a VLAN corresponding to the CPE.
  • Resource request message ;
  • the AAA server And receiving, by the AAA server, an identifier for acquiring a VLAN resource corresponding to the CPE, where the identifier is used to indicate a unique vBNG or BNG, according to the request message and the pre-stored user information data;
  • the update module may be configured to update the first flow table to be used to represent the allocation manner of the VLAN resource according to the line identification information and the service processing node information in the VLAN resource. Second flow table.
  • the server may further include: a deleting module configured to delete a VLAN resource.
  • the server may further include: a processing module configured to set a service life of the VLAN resource, and detect a network connection status of the CPE as an unestablished time;
  • the VLAN resource is released when the network connection status of the CPE is not established, and the time is greater than or equal to the usage period.
  • the second sending module may be configured to send the second flow table to the OLT, so that the OLT learns the second flow table, and forwards the second flow table to ONT; or, send the second flow table to the OLT and the ONT.
  • the embodiment of the present application further provides an optical line terminal, where the optical line terminal includes: a notification module, a determining module, and a receiving module;
  • the notification module is configured to notify the server that the status of the CPE is when the CPE is online. Online
  • the determining module is configured to receive a first flow table sent by the server, determine an authentication message based on the first flow table, and send the authentication message to the server;
  • the receiving module is configured to receive a second flow table for characterizing a mode of allocating VLAN resources, and perform VLAN resource allocation on the CPE according to the second flow table.
  • the optical line terminal may further include a third sending module configured to send the second flow table to the ONT.
  • the notification module may be configured to send an ONT UNI status to the SDN controller as a connection, so that the SDN controller notifies the server that the status of the CPE is online.
  • the embodiment of the present application further provides a resource allocation system, where the system includes a server and an optical line terminal, where
  • the server is configured to send a first flow table when the state of the CPE is determined to be online;
  • the optical line terminal is configured to determine an authentication packet based on the first flow table, and send the authentication packet to the server, and perform VLAN resource allocation on the CPE according to the second flow table.
  • the server is configured to: after the authentication packet is passed, acquire the VLAN resource of the CPE corresponding to the authentication packet; and update the first flow table to be used to identify a VLAN resource allocation manner based on the VLAN resource.
  • the second flow table is sent and the second flow table is sent.
  • the embodiment of the present application further provides a computer readable medium storing computer executable instructions, where the computer executable instructions are executed by a processor to implement the steps of the resource allocation method of the first aspect.
  • the embodiment of the present application further provides a computer readable medium storing computer executable instructions, where the computer executable instructions are executed by a processor to implement the steps of the resource allocation method of the second aspect.
  • the resource allocation method, the server, the optical line terminal, and the system provided by the embodiment of the present application when the server determines that the state of the CPE is online, the server sends the first flow table to the OLT; the OLT obtains the authentication packet according to the first flow table, and Sending the authentication packet to the server; the server is in the identification And obtaining, by the server, the VLAN resource of the CPE corresponding to the authentication packet; the server, according to the VLAN resource, updating the first flow table to a second flow table for characterizing the VLAN resource allocation manner, And sending the second flow table, so that the OLT and the ONT perform VLAN resource allocation on the CPE according to the second flow table.
  • the OLT and the ONT can dynamically allocate the VLAN resources according to the service requested by the CPE or the CPE. To avoid the waste of VLAN resources and insufficient VLAN resources.
  • 1 is a schematic diagram of a system architecture of an access network in an SDN architecture
  • FIG. 2 is a schematic flowchart of a basic processing procedure of a resource allocation method on a server side according to an embodiment of the present application
  • FIG. 3 is a schematic diagram of a processing flow of a resource allocation method on a server side according to an embodiment of the present application
  • FIG. 4 is a schematic diagram of a processing flow of a resource allocation method on a server side according to an embodiment of the present application
  • FIG. 5 is a schematic flowchart of processing a resource allocation method on an OLT side according to an embodiment of the present application
  • FIG. 6 is a schematic diagram of dynamic allocation of VLAN resources in an SDN architecture according to an embodiment of the present application.
  • FIG. 7 is a schematic flowchart of processing a resource allocation method according to an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a server according to an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a structure of an optical line terminal according to an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of a resource allocation system according to an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a basic processing flow of a resource allocation method on the server side according to an embodiment of the present application.
  • a resource allocation method provided in this embodiment, as shown in FIG. 2, includes the following steps:
  • Step 101 When the server determines that the status of the CPE is online, the first flow table is sent.
  • the server receives a message that the UNI status sent by the OLT via the SDN controller is a connection, Determining that the status of the CPE is online, and sending the first flow table to the OLT, so that the OLT matches the authentication packet according to the first flow table, and sends the matched authentication message to the server;
  • the UNI state of the ONT is changed from the administrative state interrupt (Admin Down) to the administrative state connection (Admin Up), the UNI state is Admin Down, the CPE is offline, and the UNI state is Admin Up, the CPE is online.
  • the ONT reports the OUI status (that is, the UNI status of the ONT) to the OLT through the ONU Management and Control Interface (OMCI).
  • OMCI ONU Management and Control Interface
  • the ONT also defaults the untagged Ethernet packets to the OLT. VLAN tag, and assigns a COS value indicating a service level to the Ethernet packet; the default VLAN is used for in-band communication of the CPE when there is no service;
  • the first flow table is the same as the current flow table, and the OLT can search the first flow table according to the source information or the destination information in the received message, and the received message and the content of the first flow table. After the matching is performed, the matching solution is found, and the processing scheme of the received packet is determined, such as: discarding the packet, or sending the packet, that is, establishing a CPE to the SDN control layer according to the first flow table.
  • the egress port of the packet can be further determined according to the first flow table, that is, the packet is further determined to be sent to Which port is the port; however, the egress port of the packet determined at this time may be only the egress port of the SDN controller, and the final destination egress port of the packet is not involved; therefore, the first flow table cannot be accurate according to the first flow table. Assign VLAN resources.
  • the network side may also use a method of operation management maintenance (OAM) connectivity check, or other methods to determine whether the state of the CPE is online or offline.
  • OAM operation management maintenance
  • Step 102 After the authentication packet is passed, obtain the VLAN resource of the CPE corresponding to the authentication packet.
  • the server receives the authentication packet sent by the OLT by the SDN controller, and sends the authentication packet to the AAA server, where the AAA server authenticates the CPE according to the authentication packet; after the authentication is passed, the server The server applies for dynamic VLAN resources to the vBNG.
  • the server may apply for the dynamic VLAN resource to the vBNG in the following two manners.
  • the first implementation manner is: the server sends a request message for acquiring the VLAN resource of the CPE to the AAA server via the vBNG or the BNG; the AAA server is based on the Request message and advance
  • the stored user information data matches an identifier for obtaining a VLAN resource corresponding to the CPE, and the identifier is used to indicate a unique vBNG or BNG; the server searches for a vBNG that matches the identifier according to the identifier.
  • the second implementation manner is: the server directly sends a request message for acquiring the VLAN resource of the CPE to the AAA server; the AAA server matches the request message and the pre-stored user information data to obtain the corresponding CPE.
  • An identifier of the VLAN resource where the identifier is used to indicate a unique vBNG or BNG; the server searches for the vBNG that matches the identifier according to the identifier, and applies for the VLAN resource of the CPE to the vBNG, or The BNG corresponding to the vBNG applies for the VLAN resource of the CPE.
  • the dynamic VLAN resource refers to a service and user (S+C) VLAN; where S is used to identify the OLT, and C is used to identify the user.
  • S is used to identify the OLT
  • C is used to identify the user.
  • Step 103 Update the first flow table to a second flow table for characterizing a VLAN resource allocation manner based on the VLAN resource, and send a second flow table.
  • step 102 when the CPE is authenticated, the basic information of the CPE or the service information of the CPE application can be confirmed.
  • the server determines the service processing node information of the CPE according to the basic information of the CPE or the service information of the CPE application. And determining, according to the service processing node information of the CPE, a final destination port of the untagged Ethernet packet; therefore, updating the first flow table to the second flow table according to the service processing node information of the CPE; The text can be sent to the final destination port according to the second flow table;
  • the second flow table is used to describe the allocation manner of the VLAN resource, that is, how to allocate the VLAN resource, and the basic information of the CPE includes the line identifier of the CPE, the service information of the CPE, and the like.
  • the implementation of the second flow table by the server also includes two types.
  • the first implementation manner is that the server sends the second flow table to the OLT, and the OLT forwards the second flow table to the ONT through the OMCI.
  • the server sends the second flow table to the OLT and the ONT.
  • FIG. 3 is a schematic diagram of a process flow of a resource allocation method on the server side according to an embodiment of the present application.
  • the detailed processing flow of the resource allocation method provided in this embodiment, as shown in FIG. 3, includes the following steps:
  • Step 201 When the server determines that the state of the CPE is online, the first flow table is sent.
  • the server receives the message that the UNI is sent by the OLT via the SDN controller, and determines that the status of the CPE is online, and sends the first flow table to the OLT, so that the OLT matches the authentication report according to the first flow table. And sending the matched authentication message to the server;
  • the UNI status of the ONT is changed from Admin Down to Admin Up.
  • the UNI status is Admin Down, indicating that the CPE is offline.
  • the UNI status is Admin Up, indicating that the CPE is online.
  • the ONT reports the OUI status to the OLT through OMCI.
  • the ONT adds the default VLAN tag to the untagged Ethernet packet, and assigns the COS value indicating the service level to the Ethernet packet; the default VLAN is used for the inband communication of the CPE when there is no service;
  • the first flow table is the same as the current flow table, and the OLT can search the first flow table according to the source information or the destination information in the received message, and the received message and the content of the first flow table. After the matching is performed, the matching solution is found, and the processing scheme of the received packet is determined, such as: discarding the packet, or sending the packet, that is, establishing a CPE to the SDN control layer according to the first flow table.
  • the egress port of the packet can be further determined according to the first flow table, that is, the packet is further determined to be sent to Which port is the port; however, the egress port of the packet determined at this time may be only the egress port of the SDN controller, and the final destination egress port of the packet is not involved; therefore, the first flow table cannot be accurate according to the first flow table. Assign VLAN resources.
  • the network side may also use the method of OAM connectivity check, or other methods to determine whether the state of the CPE is online or offline.
  • Step 202 After the authentication packet is passed, obtain the VLAN resource of the CPE corresponding to the authentication packet.
  • the server receives the authentication packet sent by the OLT by the SDN controller, and sends the authentication packet to the AAA server, where the AAA server authenticates the CPE according to the authentication packet; after the authentication is passed, the server The server applies for dynamic VLAN resources to the vBNG.
  • the server may apply for the dynamic VLAN resource to the vBNG in two ways.
  • the first implementation manner is: the server sends a request message for acquiring the VLAN resource of the CPE to the AAA server via the vBNG or the BNG; the AAA server is based on the The identifier of the VLAN resource corresponding to the CPE is matched between the request message and the pre-stored user information data.
  • the identifier code is used to indicate a unique vBNG or BNG; the server searches for the vBNG that matches the identifier code according to the identifier code, and applies for the VLAN resource of the CPE to the vBNG, or applies to the BNG corresponding to the vBNG.
  • VLAN resource of the CPE is used to indicate a unique vBNG or BNG; the server searches for the vBNG that matches the identifier code according to the identifier code, and applies for the VLAN resource of the CPE to the vBNG, or applies to the BNG
  • the second implementation manner is: the server directly sends a request message for acquiring the VLAN resource of the CPE to the AAA server; the AAA server matches the request message and the pre-stored user information data to obtain the corresponding CPE.
  • An identifier of the VLAN resource where the identifier is used to indicate a unique vBNG or BNG; the server searches for the vBNG that matches the identifier according to the identifier, and applies for the VLAN resource of the CPE to the vBNG, or The BNG corresponding to the vBNG applies for the VLAN resource of the CPE.
  • the dynamic VLAN resource refers to a service and user (S+C) VLAN resource; where S is used to identify the OLT, and C is used to identify the user.
  • S is used to identify the OLT
  • C is used to identify the user.
  • Step 203 Update the first flow table to a second flow table for characterizing the VLAN resource allocation manner based on the VLAN resource, and send a second flow table.
  • the server determines the service processing node information of the CPE according to the basic information of the CPE or the service information of the CPE application. And determining, according to the service processing node information of the CPE, a final destination port of the untagged Ethernet packet; therefore, updating the first flow table to the second flow table according to the service processing node information of the CPE; The text can be sent to the final destination port according to the second flow table;
  • the second flow table is used to describe the allocation manner of the VLAN resource, that is, how to allocate the VLAN resource, and the basic information of the CPE includes the line identifier of the CPE, the service information of the CPE, and the like.
  • the implementation of the second flow table by the server also includes two types.
  • the first implementation manner is that the server sends the second flow table to the OLT, and the OLT forwards the second flow table to the ONT through the OMCI.
  • the server sends the second flow table to the OLT and the ONT.
  • Step 204 Set a life span of the dynamic VLAN resource, and process the VLAN resource according to the use period;
  • the server can set the lifetime of the dynamic VLAN resource and detect the CPE.
  • the network connection status is an unestablished time; wherein, the network connection status of the CPE is not established, indicating that the CPE is in an offline state, and the network connection status of the CPE is established to indicate that the CPE is in an online state;
  • the S+C VLAN resource is saved when the network connection status of the CPE is less than the usage period; that is, the S+C VLAN resource is not released regardless of whether the CPE is online or offline;
  • the dynamic VLAN resource is released when the network connection status of the CPE is not established, and the SPE is re-allocated.
  • the resource allocation of the S+C VLAN resource is not affected.
  • the lifetime of the dynamic VLAN resource is permanent, that is, the CPE is online once, and the S+C VLAN resource can be obtained for a long time.
  • FIG. 4 is a schematic diagram of a process flow of a resource allocation method on the server side according to an embodiment of the present application.
  • the processing flow of the resource allocation method provided in this embodiment, as shown in FIG. 4, includes the following steps:
  • Step 301 When the server determines that the state of the CPE is online, the first flow table is sent.
  • the server receives the message that the UNI is sent by the OLT via the SDN controller, and determines that the status of the CPE is online, and sends the first flow table to the OLT, so that the OLT matches the authentication report according to the first flow table. And sending the matched authentication message to the server;
  • the UNI status of the ONT is changed from Admin Down to Admin Up.
  • the UNI status is Admin Down, indicating that the CPE is offline.
  • the UNI status is Admin Up, indicating that the CPE is online.
  • the ONT reports the OUI status to the OLT through OMCI.
  • the ONT puts the untagged Ethernet packet with the default VLAN tag, and assigns the COS value indicating the service level to the Ethernet packet; the default VLAN is used for the inband communication of the CPE when there is no service;
  • the first flow table is the same as the current flow table, and the OLT can search the first flow table according to the source information or the destination information in the received message, and the received message and the content of the first flow table. After the matching is performed, the matching solution is found, and the processing scheme of the received packet is determined, such as: discarding the packet, or sending the packet, that is, establishing a CPE to the SDN control layer according to the first flow table.
  • the egress port of the packet can be further determined according to the first flow table, that is, the packet is further determined to be sent to Which port; however, the outgoing port of the packet determined at this time may be only SDN control
  • the egress port of the device does not involve the final destination egress port of the packet; therefore, the VLAN resource cannot be accurately allocated according to the first flow table.
  • the network side may also use the method of OAM connectivity check, or other methods to determine whether the state of the CPE is online or offline.
  • Step 302 After the authentication packet is passed, obtain the VLAN resource of the CPE corresponding to the authentication packet.
  • the server receives the authentication packet sent by the OLT by the SDN controller, and sends the authentication packet to the AAA server, where the AAA server authenticates the CPE according to the authentication packet; after the authentication is passed, the server The server applies for dynamic VLAN resources to the vBNG.
  • the server may apply for the dynamic VLAN resource to the vBNG in two ways.
  • the first implementation manner is: the server sends a request message for acquiring the VLAN resource of the CPE to the AAA server via the vBNG or the BNG; the AAA server is based on the The request message and the pre-stored user information data match an identifier for obtaining a VLAN resource corresponding to the CPE, the identifier code is used to indicate a unique vBNG or BNG; and the server searches for the identifier code according to the identifier code. And matching the vBNG, and applying for the VLAN resource of the CPE to the vBNG, or applying for the VLAN resource of the CPE to the BNG corresponding to the vBNG.
  • the second implementation manner is: the server directly sends a request message for acquiring the VLAN resource of the CPE to the AAA server; the AAA server matches the request message and the pre-stored user information data to obtain the corresponding CPE.
  • An identifier of the VLAN resource where the identifier is used to indicate a unique vBNG or BNG; the server searches for the vBNG that matches the identifier according to the identifier, and applies for the VLAN resource of the CPE to the vBNG, or The BNG corresponding to the vBNG applies for the VLAN resource of the CPE.
  • the dynamic VLAN resource refers to a service and user (S+C) VLAN resource; where S is used to identify the OLT, and C is used to identify the user.
  • S is used to identify the OLT
  • C is used to identify the user.
  • Step 303 Update the first flow table to a second flow table for characterizing the VLAN resource allocation manner based on the VLAN resource, and send a second flow table.
  • the basic information of the CPE or the service information of the CPE application can be confirmed.
  • the server is based on the basic information of the CPE or the service information of the CPE application. Determining the service processing node information of the CPE, and determining, according to the service processing node information of the CPE, the final destination port of the untagged Ethernet packet; therefore, combining the service processing node information of the CPE to the first flow
  • the table is updated to the second flow table; enabling the Ethernet message to be sent to the final destination port according to the second flow table;
  • the second flow table is used to describe the allocation manner of the VLAN resource, that is, how to allocate the VLAN resource, and the basic information of the CPE includes the line identifier of the CPE, the service information of the CPE, and the like.
  • the implementation of the second flow table by the server also includes two types.
  • the first implementation manner is that the server sends the second flow table to the OLT, and the OLT forwards the second flow table to the ONT through the OMCI.
  • the server sends the second flow table to the OLT and the ONT.
  • Step 304 The server deletes the dynamic VLAN resource.
  • the server deletes the S+C VLAN resource when the service of the CPE is logged off.
  • the S+C VLAN resource may be deleted in the CPE online state, or the S+C VLAN resource may be deleted in the CPE offline state.
  • FIG. 5 is a schematic diagram of a processing flow of a resource allocation method on the OLT side according to an embodiment of the present application.
  • the processing flow of the resource allocation method provided in this embodiment, as shown in FIG. 5, includes the following steps:
  • Step 401 When the CPE is online, the OLT notifies the server that the status of the CPE is online.
  • the OLT sends an ONT UNI status to the SDN controller as a connection, the ONT UNI status is a connection indicating that the CPE is online, and the SDN controller notifies the server that the status of the CPE is online.
  • Step 402 Acquire an authentication packet, and send an authentication packet to the server.
  • the OLT receives the first flow table sent by the server, and matches the first flow table according to the first flow table; that is, the OLT searches the first flow table according to the source information or the destination information in the received message, and the received message is received. Matching with the content of the first flow table, after the matching entry is found, that is, the received packet is an authentication packet, and the processing scheme of the received packet may be determined according to the matched entry in the first flow table. If the packet is discarded, or the packet is sent, the connection between the CPE and the SDN control layer is established according to the first flow table, and the processing scheme for determining the received packet is to send the packet.
  • an out port of the packet That is, the port to which the packet is sent may be further determined; however, the egress port of the packet determined at this time may be only the egress port of the SDN controller, and the final destination egress port of the packet is not involved; According to the first flow table, the VLAN resource cannot be accurately allocated.
  • the authentication mode of the authentication packet includes: a method in an 802.1x (EAPoL) authentication protocol, a dynamic host configuration protocol (DHCP) subscriber line identification mode, and a point-to-point transmission over an Ethernet (Point-to)
  • the -Point Protocol over Ethernet (PPPoE) mode allows only the packets of the PPPoE discovery and session to pass through the Internet Protocol (IP).
  • the fixed IP mode includes: when the service is ordered, the S+ is directly configured. C VLAN resources, or the OLT directly forwards S+C VLAN resources according to the pre-configured flow table.
  • Step 403 Receive a second flow table that is used to represent the allocation mode of the VLAN resource, and perform VLAN resource allocation on the CPE according to the second flow table.
  • the OLT receives the second flow table sent by the server, sends the second flow table to the ONT, and the OLT and the ONT perform VLAN resource allocation on the CPE based on the second flow table; or the second sent by the OLT receiving server
  • the flow table, the ONT also receives the second flow table sent by the server, and the OLT and the ONT perform VLAN resource allocation on the CPE based on the second flow table.
  • the second flow table is determined by the server to obtain the service processing node information of the CPE according to the basic information of the CPE obtained by the CPE, or the service information of the CPE application, and process the node information according to the service of the CPE. Determining the final destination port of the untagged Ethernet packet; therefore, converting the first flow table to the second flow table in combination with the service processing node information of the CPE; enabling the Ethernet packet to be sent according to the second flow table To the final destination port;
  • the second flow table is used to describe the allocation manner of the VLAN resource, that is, how to allocate the VLAN resource, and the basic information of the CPE includes the line identifier of the CPE, the service information of the CPE, and the like.
  • the dynamic allocation of VLAN resources in the SDN architecture is shown in Figure 6.
  • the VOLT application installed on the server controls the ONT and the OLT to complete the CPE.
  • Step 501 When the user subscribes to the service, the service platform configures the AAA server and the vBNG for the user, or configures the AAA server and the BNG for the user.
  • the service platform of the operator configures the AAA server and the vBNG for the user according to the subscription information of the user; or the service platform of the operator configures the AAA server and the BNG for the user according to the subscription information of the user;
  • the subscription information includes: a user name, a physical address where the user is located, and a user password provided by the CPE to which the user belongs to obtain the service.
  • Step 502 the ONT reports the UNI state to the OLT
  • the UNI status of the ONT is changed from Admin Down to Admin Up.
  • the UNI status is Admin Down, indicating that the CPE is offline.
  • the UNI status is Admin Up, indicating that the CPE is online.
  • the ONT reports the OUI status to the OLT through the OMCI.
  • the ONT adds the default VLAN tag to the untagged Ethernet packet, and assigns the COS value indicating the service level to the Ethernet packet.
  • the default VLAN is used for the inband communication of the CPE when there is no service.
  • Step 503 the OLT reports the UNI status to the SDN controller, and the SDN controller notifies the server of the UNI state; the server delivers the first flow table to the OLT through the SDN controller;
  • the first flow table is the same as the current flow table, and the OLT can search the first flow table according to the source information or the destination information in the received message, and the received message and the content of the first flow table. After the matching is performed, the matching packet is found, that is, the received packet is an authentication packet, and the processing scheme of the received packet is determined according to the matching entry in the first flow table, for example, the packet is discarded.
  • the egress port of the packet can be further determined, that is, the port to which the packet is sent is further determined; however, the egress port of the packet determined at this time may be only the egress port of the SDN controller, and is not involved.
  • the final destination of the packet is an outgoing port; therefore, the VLAN resource cannot be accurately allocated according to the first flow table;
  • the authentication mode of the authentication packet includes: an 802.1x (EAPoL) authentication protocol, a DHCP subscriber line identifier, and only PPPoE discovery and PPPoE.
  • the packet is passed through the fixed IP mode.
  • the fixed IP mode includes: directly configuring the reserved S+C VLAN resource when the service is subscribed, or directly forwarding the S+C VLAN resource according to the pre-configured flow table.
  • Step 504 After the authentication packet is passed, the server acquires the VLAN resource of the CPE corresponding to the authentication packet.
  • the server sends the authentication packet to the AAA server according to the authentication packet sent by the OLT through the SDN controller, and the AAA server authenticates the CPE according to the authentication packet; after the authentication is passed, the server sends the authentication packet to the AAA server.
  • vBNG applies for dynamic VLAN resources.
  • the server may apply for the dynamic VLAN resource to the vBNG in the following two manners.
  • the first implementation manner is: the server sends a request message for acquiring the VLAN resource of the CPE to the AAA server via the vBNG or the BNG; the AAA server is based on the And the identification code used to obtain the VLAN resource corresponding to the CPE, the identifier code is used to indicate a unique vBNG or BNG; the server searches for the identifier according to the identifier code.
  • the code matches the vBNG, and applies for the VLAN resource of the CPE to the vBNG, or applies for the VLAN resource of the CPE to the BNG corresponding to the vBNG.
  • the second implementation manner is: the server directly sends a request message for acquiring the VLAN resource of the CPE to the AAA server; the AAA server matches the request message and the pre-stored user information data to obtain the corresponding CPE.
  • An identifier of the VLAN resource where the identifier is used to indicate a unique vBNG or BNG; the server searches for the vBNG that matches the identifier according to the identifier, and applies for the VLAN resource of the CPE to the vBNG, or The BNG corresponding to the vBNG applies for the VLAN resource of the CPE.
  • the dynamic VLAN resource refers to a service and user (S+C) VLAN resource; where S is used to identify the OLT, and C is used to identify the user.
  • S is used to identify the OLT
  • C is used to identify the user.
  • Step 505 The server updates the first flow table to a second flow table used to represent the VLAN resource allocation manner, and sends a second flow table.
  • the CPE can be used to confirm the basic information of the CPE or the service information of the CPE application.
  • the server determines the service processing node information of the CPE according to the basic information of the CPE or the service information of the CPE application, and according to the CPE.
  • the service processing node information determines the final destination port of the untagged Ethernet packet; therefore, the service processing node information combined with the CPE will
  • the first flow table is converted into a second flow table, where the second flow table is used to represent the allocation manner of the VLAN resource, that is, how to allocate the VLAN resource, and the basic information of the CPE includes the CPE. Line identification, service information of the CPE, and the like.
  • the server also sends the second flow table in two ways.
  • the first implementation manner is: the server sends the second flow table to the OLT, and the OLT forwards the second flow table to the ONT through the OMCI;
  • the server sends the second flow table to the OLT and the ONT; at this point, the server controls the ONT and the OLT to complete the VLAN resource allocation and connection of the CPE to the vBNG.
  • the method may further include:
  • Step 506 The AAA server deletes the CPE information, and sends a message to the server to delete the CPE information.
  • step 507 the server deletes the S+C VLAN resource.
  • VOLT Virtual Optical Line Terminal
  • FIG. 8 is a schematic structural diagram of a server according to an embodiment of the present application.
  • the server provided in this embodiment includes: a first sending module 11, an obtaining module 12, an updating module 13, and a second sending module 14;
  • the first sending module 11 is configured to: when the status of the CPE is determined to be online, send the first flow table, to receive the authentication message sent by the OLT based on the first flow table;
  • the obtaining module 12 is configured to obtain the VLAN resource of the CPE corresponding to the authentication packet after the authentication packet is passed;
  • the dynamic VLAN resource is an S+CVLAN resource; where S is used to identify the OLT, and C is used to identify the user;
  • the update module 13 is configured to update the first flow table to a second flow table for characterizing the VLAN resource allocation manner based on the VLAN resource;
  • the second sending module 14 is configured to send a second flow table, so that the OLT and the ONT perform VLAN resource allocation on the CPE according to the second flow table.
  • the first sending module 11 may be configured to receive the The UNI status of the OLT sent by the SDN controller is a connected message, and the status of the CPE is determined to be online;
  • the UNI status of the ONT is changed from Admin Down to Admin Up.
  • the UNI status is Admin Down, indicating that the CPE is offline.
  • the UNI status is Admin Up, indicating that the CPE is online.
  • the ONT reports the OUI status to the OLT through OMCI.
  • the ONT adds the default VLAN tag to the untagged Ethernet packet, and assigns the COS value indicating the service level to the Ethernet packet; the default VLAN is used for the inband communication of the CPE when there is no service;
  • the first flow table is the same as the current flow table, and the OLT can search the first flow table according to the source information or the destination information in the received message, and the received message and the content of the first flow table. After the matching is performed, the matching solution is found, and the processing scheme of the received packet is determined, such as: discarding the packet, or sending the packet, that is, establishing a CPE to the SDN control layer according to the first flow table.
  • the egress port of the packet can be further determined according to the first flow table, that is, the packet is further determined to be sent to Which port is the port; however, the egress port of the packet determined at this time may be only the egress port of the SDN controller, and the final destination egress port of the packet is not involved; therefore, the first flow table cannot be accurate according to the first flow table. Assign VLAN resources.
  • the obtaining module 12 may be configured to send a request message for acquiring a VLAN resource corresponding to the CPE to the AAA server, or directly send the CPE to the AAA server, by using the vBNG or the BNG. a request message for the corresponding VLAN resource;
  • an identifier for acquiring a VLAN resource corresponding to the CPE which is sent by using the request message and the pre-stored user information data, where the identifier code is used to indicate a unique vBNG or BNG;
  • the updating module 13 may be configured to update the first flow table to be used to represent the allocation of the VLAN resource according to the line identification information and the service processing node information in the VLAN resource. Second flow table of the method;
  • the update module 13 may determine the service processing node information of the CPE according to the basic information of the CPE or the service information of the CPE application, and determine the untagged Ethernet packet according to the service processing node information of the CPE. Destination port; therefore, in combination with the CPE
  • the service processing node information converts the first flow table into a second flow table; enabling an Ethernet message to be sent to a final destination port according to the second flow table.
  • the second flow table is used to describe the allocation manner of the VLAN resource, that is, how to allocate the VLAN resource, and the basic information of the CPE includes the line identifier of the CPE, the service information of the CPE, and the like.
  • the server may further include: a deleting module 15 configured to delete the dynamic VLAN resource when the user cancels the service.
  • the server may further include: a processing module 16, configured to set a lifetime of the dynamic VLAN resource, and detect that the network connection status of the CPE is an unestablished time;
  • the dynamic VLAN resource is released when a time when the network connection status of the CPE is not established is greater than or equal to the usage period.
  • the second sending module 14 may be configured to send the second flow table to the OLT, so that the OLT learns the second flow table and forwards the second flow table to ONT; or, send the second flow table to the OLT and the ONT.
  • FIG. 9 is a schematic structural diagram of an optical line terminal according to an embodiment of the present application.
  • the optical line terminal provided by this embodiment includes: a notification module 21, a determining module 22, a receiving module 23, and a third sending module 24;
  • the notification module 21 is configured to notify the server that the status of the CPE is online when the CPE is online;
  • the determining module 22 is configured to receive a first flow table sent by the server, determine an authentication message based on the first flow table, and send the authentication message to the server;
  • the receiving module 23 is configured to receive a second flow table for indicating a mode of allocating VLAN resources, and the CPE according to the second flow table;
  • the second flow table is determined by the server to obtain the service processing node information of the CPE according to the basic information of the CPE obtained by the CPE, or the service information of the CPE application. And determining, according to the service processing node information of the CPE, a final destination port of the untagged Ethernet packet; therefore, converting the first flow table to the second flow table according to the service processing node information of the CPE; The text can be sent to the final destination port according to the second flow table;
  • the second flow table is used to describe the allocation manner of the VLAN resource, that is, how to allocate the VLAN resource, and the basic information of the CPE includes the line identifier of the CPE, the service information of the CPE, and the like.
  • the third sending module 24 is configured to send the second flow table to the ONT through the OMCI, so that the OLT and the ONT perform VLAN resource allocation.
  • the notification module 21 may be configured to send a UNI status of the ONT to the SDN controller as a connection, so that the SDN controller notifies the server that the status of the CPE is online.
  • the determining module 22 may be configured to receive a first flow table sent by the server, and match the authentication message according to the first flow table;
  • the determining module 22 may search the first flow table sent by the server according to the source information or the destination information in the received message, and match the received message with the content of the first flow table to find After the matched entry, that is, the received packet is an authentication packet, the processing scheme of the received packet may be determined according to the matched entry in the first flow table, such as: discarding the packet, or sending the packet.
  • a packet that is, a connection between the CPE and the SDN control layer is established according to the first flow table; and when the processing scheme for determining the received message is to send the packet, the first flow table can further determine the The outbound port of the packet is further determined to be the port to which the packet is sent.
  • the egress port of the packet determined at this time may be only the egress port of the SDN controller, and the packet is not involved.
  • the destination port is finally destined; therefore, the VLAN resource cannot be accurately allocated according to the first flow table.
  • the authentication mode of the authentication packet includes: a mode in the 802.1x (EAPoL) authentication protocol, a DHCP subscriber line identification mode, a PPPoE discovery and a session in the PPPoE discovery mode, and a fixed IP mode.
  • the fixed IP mode includes: directly configuring the reserved S+C VLAN resource when the service is subscribed, or directly forwarding the S+C VLAN resource according to the pre-configured flow table.
  • FIG. 10 is a schematic structural diagram of a resource allocation system according to an embodiment of the present application.
  • the resource allocation system provided in this embodiment includes: a server 1 and an optical line terminal 2;
  • the server 1 is configured to send a first flow table when the state of the CPE is determined to be online;
  • the optical line terminal 2 is configured to determine an authentication packet based on the first flow table, and send the authentication packet to the server;
  • the server 1 is configured to: after the authentication packet is passed, acquire the VLAN resource of the CPE corresponding to the authentication packet; and update the first flow table to be used for characterizing the VLAN resource allocation manner based on the VLAN resource. a second flow table and sending a second flow table;
  • the optical line terminal 2 is configured to perform VLAN resource allocation on the CPE according to the second flow table.
  • the functions performed by the server provided in this embodiment include at least the functions performed by the server provided by the embodiment shown in FIG. 8.
  • the functions performed by the optical line terminal provided in this embodiment include at least the light provided by the embodiment shown in FIG. The function performed by the line terminal.
  • the embodiment of the present application further provides a computer readable medium storing computer executable instructions, where the computer executable instructions are executed by a processor to implement a server side resource allocation method.
  • the embodiment of the present application further provides a computer readable medium storing computer executable instructions, the steps of implementing the resource allocation method on the OLT side when the computer executable instructions are executed by the processor.
  • embodiments of the present application can be provided as a method, apparatus, system, or computer program product. Accordingly, the application can take the form of a hardware embodiment, a software embodiment, or an embodiment in combination with software and hardware. Moreover, the application 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 and optical storage, etc.) including computer usable program code.
  • 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.
  • the functions performed by the first sending module 11, the obtaining module 12, the updating module 13, the second sending module 14, the deleting module 15, and the processing module 16 may be implemented by a central processing unit located on the server. (CPU), or a microprocessor (MPU), or a digital signal processor (DSP), or a programmable gate array (FPGA) implementation; the notification module 21, the determination module 22, the receiving module 23, and the third transmitting module 24
  • the functions performed may be implemented by a CPU located on the OLT, or an MPU, or a DSP, or an FPGA.
  • computer storage medium includes volatile and nonvolatile, implemented in any method or technology for storing information, such as computer readable instructions, data structures, program modules or other data. Sex, removable and non-removable media.
  • Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or Other memory technologies, CD-ROMs, digital versatile disc (DVD) or other optical disc storage, magnetic boxes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other that can be used to store desired information and can be accessed by a computer medium.
  • communication media typically includes computer readable instructions, data structures, program modules, or other data in a modulated data signal, such as a carrier wave or other transport mechanism, and can include any information delivery media. .
  • the embodiment of the present invention provides a resource allocation method, a server, an optical line terminal, and a system, so that the OLT and the ONT can dynamically allocate VLAN resources according to services requested by the CPE or the CPE, and avoid the problem of waste of VLAN resources and insufficient VLAN resources.

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Abstract

一种资源分配方法，包括：服务器确定用户终端设备CPE的状态为在线时，发送第一流表，以接收光线路终端OLT基于所述第一流表发送的认证报文；在所述认证报文通过后，获取所述认证报文对应的CPE的虚拟局域网VLAN资源；基于所述VLAN资源将所述第一流表更新为用于表征VLAN资源分配方式的第二流表，并发送第二流表，以使所述OLT和光网络单元ONT根据所述第二流表对所述CPE进行VLAN资源分配。

Description

一种资源分配方法、服务器、光线路终端及系统 技术领域
本申请涉及但不限于无线通信技术领域，尤其涉及一种资源分配方法、服务器、光线路终端及系统。
背景技术
软件定义网络(Software Define Network，SDN)是一种新型的网络架构，旨在将网络的控制与转发相分离，并对底层设备实现可编程化控制，进而实现网络开放与灵活配置的目的。SDN从架构上打破了传统的依赖专有网元形成的封闭、僵化的控制体系，为接入网的发展提供了新的思路，如控制与转发的分离、集中控制等；使光接入网设备逐渐具备智能控制功能，提供集成服务的能力，简化了运营流程，提高了网络运维的效率。
接入网系统包括数字用户线(Digital Subscriber Line，DSL)系统或者无源光网络(Passive Optical Network，PON)系统；SDN架构下接入网的系统架构示意图，如图1所示，在SDN架构下，一个SDN控制器会控制多个接入网系统；此时，若应用传统的虚拟局域网(Virtual Local Area Network，VLAN)资源分配方法，即静态配置VLAN资源，则会导致SDN控制器在对用户进行业务管理时出现VLAN资源浪费及VLAN资源不足的问题。
发明概述
以下是对本文详细描述的主题的概述。本概述并非是为了限制权利要求的保护范围。
本申请实施例提供一种资源分配方法、服务器及光线路终端。
第一方面，本申请实施例提供一种资源分配方法，所述方法应用于服务器，包括：确定用户终端设备(Customer Premise Equipment，CPE)的状态为在线时，发送第一流表，以接收光线路终端(Optical Line Terminal，OLT)基于所述第一流表发送的认证报文；在所述认证报文通过后，获取所述认证 报文对应的CPE的VLAN资源；基于所述VLAN资源将所述第一流表更新为用于表征VLAN资源分配方式的第二流表，并发送第二流表，以使所述OLT和光网络单元(Optical Network Unit，ONT)根据所述第二流表对所述CPE进行VLAN资源分配。
在示例性实施方式中，所述服务器确定CPE的状态为在线，可以包括：
所述服务器接收所述OLT经SDN控制器发送的用户网络接口(User Network Interface，UNI)状态为连接的消息。
在示例性实施方式中，所述获取所述认证报文对应的CPE的VLAN资源，可以包括：
所述服务器经由虚拟宽带网络网关(virtual Broadband Network Gateway，vBNG)或宽带网络网关(Broadband Network Gateway，BNG)向认证授权计费(Authentication Authorization Accounting，AAA)服务器发送获取所述CPE的VLAN资源的请求消息，或所述服务器直接向所述AAA服务器发送获取所述CPE的VLAN资源的请求消息；
接收所述AAA服务器基于所述请求消息和预先存储的用户信息数据发送的用于获取所述CPE对应的VLAN资源的标识码，所述标识码用于指示唯一的vBNG或BNG；
所述服务器基于所述标识码获取所述CPE对应的VLAN资源。
在示例性实施方式中，所述基于所述VLAN资源将所述第一流表更新为用于表征VLAN资源的分配方式的第二流表，可以包括：
根据所述VLAN资源中的线路标识信息和业务处理节点信息，将所述第一流表更新为用于表征所述VLAN资源的分配方式的第二流表。
在示例性实施方式中，所述方法还可以包括：服务器删除VLAN资源。
在示例性实施方式中，所述方法还可以包括：设置VLAN资源的使用期限；
检测所述CPE的网络连接状态为未建立的时间；
在所述CPE的网络连接状态为未建立的时间小于所述使用期限时，保存所述VLAN资源；
在所述CPE的网络连接状态为未建立的时间大于或等于所述使用期限时，释放所述VLAN资源。
在示例性实施方式中，所述发送第二流表，可以包括：
所述服务器发送所述第二流表至OLT，以使所述OLT获知所述第二流表并将所述第二流表转发至ONT；或，
所述服务器发送所述第二流表至OLT和ONT。
第二方面，本申请实施例还提供一种资源分配方法，所述方法应用于OLT，包括：
CPE在线时，通知服务器所述CPE的状态为在线；
接收服务器发送的第一流表，基于所述第一流表确定认证报文，并发送所述认证报文至服务器；
接收用于表征VLAN资源的分配方式的第二流表，根据所述第二流表对所述CPE进行VLAN资源分配。
在示例性实施方式中，所述方法还可以包括：所述OLT发送所述第二流表至ONT。
在示例性实施方式中，所述OLT通知服务器所述CPE的状态为在线，可以包括：
所述OLT向SDN控制器发送ONT的UNI状态为连接，以使所述SDN控制器通知所述服务器所述CPE的状态为在线。
第三方面，本申请实施例还提供一种服务器，所述服务器包括：第一发送模块、获取模块、更新模块和第二发送模块；其中，
所述第一发送模块，配置为确定CPE的状态为在线时，发送第一流表，以接收OLT基于所述第一流表发送的认证报文；
所述获取模块，配置为在所述认证报文通过后，获取所述认证报文对应的CPE的VLAN资源；
所述更新模块，用于基于所述VLAN资源将所述第一流表更新为用于表征所述VLAN资源分配方式的第二流表；
所述第二发送模块，用于发送第二流表，以使所述OLT和ONT根据所述第二流表对所述CPE进行VLAN资源分配。
在示例性实施方式中，所述第一发送模块，可以配置为接收所述OLT经SDN控制器发送的UNI状态为连接的消息。
在示例性实施方式中，所述获取模块，可以配置为经由vBNG或BNG向AAA服务器发送获取所述CPE对应的VLAN资源的请求消息，或直接向所述AAA服务器发送获取所述CPE对应的VLAN资源的请求消息；
接收所述AAA服务器基于所述请求消息和预先存储的用户信息数据发送的用于获取所述CPE对应的VLAN资源的标识码，其中，所述标识码用于指示唯一的vBNG或BNG；
基于所述标识码获取所述CPE对应的VLAN资源。
在示例性实施方式中，所述更新模块，可以配置为根据所述VLAN资源中的线路标识信息和业务处理节点信息，将所述第一流表更新为用于表征所述VLAN资源的分配方式的第二流表。
在示例性实施方式中，所述服务器还可以包括：删除模块，配置为删除VLAN资源。
在示例性实施方式中，所述服务器还可以包括：处理模块，配置为设置VLAN资源的使用期限，检测所述CPE的网络连接状态为未建立的时间；
在所述CPE的网络连接状态为未建立的时间小于所述使用期限时，保存所述VLAN资源；
在所述CPE的网络连接状态为未建立的时间大于或等于所述使用期限时，释放所述VLAN资源。
在示例性实施方式中，所述第二发送模块，可以配置为发送所述第二流表至OLT，以使所述OLT获知所述第二流表，并将所述第二流表转发至ONT；或，发送所述第二流表至OLT和ONT。
第四方面，本申请实施例还提供一种光线路终端，所述光线路终端包括：通知模块、确定模块和接收模块；其中，
所述通知模块，配置为在CPE在线时，通知服务器所述CPE的状态为 在线；
所述确定模块，配置为接收服务器发送的第一流表，基于所述第一流表确定认证报文，并发送所述认证报文至服务器；
所述接收模块，配置为接收用于表征VLAN资源的分配方式的第二流表，根据所述第二流表对所述CPE进行VLAN资源分配。
在示例性实施方式中，所述光线路终端还可以包括第三发送模块，配置为发送所述第二流表至ONT。
在示例性实施方式中，所述通知模块，可以配置为向SDN控制器发送ONT UNI状态为连接，以使所述SDN控制器通知服务器所述CPE的状态为在线。
第五方面，本申请实施例还提供一种资源分配系统，所述系统包括服务器和光线路终端，其中，
所述服务器，配置为确定CPE的状态为在线时，发送第一流表；
所述光线路终端，配置为基于所述第一流表确定认证报文，并发送所述认证报文至所述服务器，根据所述第二流表对所述CPE进行VLAN资源分配；
所述服务器，配置为在所述认证报文通过后，获取所述认证报文对应的CPE的VLAN资源；基于所述VLAN资源将所述第一流表更新为用于表征VLAN资源分配方式的第二流表，并发送第二流表。
此外，本申请实施例还提供一种计算机可读介质，存储有计算机可执行指令，所述计算机可执行指令被处理器执行时实现上述第一方面的资源分配方法的步骤。
此外，本申请实施例还提供一种计算机可读介质，存储有计算机可执行指令，所述计算机可执行指令被处理器执行时实现上述第二方面的资源分配方法的步骤。
本申请实施例所提供的资源分配方法、服务器、光线路终端及系统，服务器确定CPE的状态为在线时，向OLT发送第一流表；所述OLT根据所述第一流表获取认证报文，并将所述认证报文发送至服务器；服务器在所述认 证报文通过后，获取所述认证报文对应的CPE的VLAN资源；所述服务器基于所述VLAN资源将所述第一流表更新为用于表征所述VLAN资源分配方式的第二流表，并发送所述第二流表，以使所述OLT和ONT根据所述第二流表对所述CPE进行VLAN资源分配。如此，通过将用于建立CPE到SDN控制层的第一流表更新为用于表征VLAN资源分配方式的第二流表，使得OLT和ONT能够根据CPE或CPE申请的业务来进行VLAN资源的动态分配，避免VLAN资源浪费及VLAN资源不足的问题。
在阅读并理解了附图和详细描述后，可以明白其他方面。
附图概述
图1为SDN架构下接入网的一种系统架构示意图；
图2为本申请实施例服务器侧的一种资源分配方法的基本处理流程示意图；
图3为本申请实施例服务器侧的一种资源分配方法的处理流程示意图；
图4为本申请实施例服务器侧的一种资源分配方法的处理流程示意图；
图5为本申请实施例OLT侧的一种资源分配方法的处理流程示意图；
图6为本申请实施例的一种SDN架构下VLAN资源的动态分配示意图；
图7为本申请实施例的一种资源分配方法的处理流程示意图；
图8为本申请实施例的一种服务器的组成结构示意图；
图9为本申请实施例的一种光线路终端的组成结构示意图；
图10为本申请实施例的一种资源分配系统的组成结构示意图。
详述
图2为本申请实施例服务器侧的一种资源分配方法的基本处理流程示意图。本实施例提供的一种资源分配方法，如图2所示，包括以下步骤：
步骤101，服务器确定CPE的状态为在线时，发送第一流表；
其中，服务器接收OLT经由SDN控制器发送的UNI状态为连接的消息， 确定所述CPE的状态为在线，向OLT发送所述第一流表，以使所述OLT根据所述第一流表匹配认证报文，并将匹配得到的认证报文发送至服务器；
这里，在CPE上线以后，ONT的UNI状态从管理状态中断(Admin Down)变更为管理状态连接(Admin Up)，UNI状态为Admin Down表示所述CPE离线，UNI状态为Admin Up表示所述CPE在线；ONT通过光网络单元管理控制接口(ONU Management and Control Interface，OMCI)将OUI状态(即ONT的UNI状态)上报至OLT；同时ONT将帧不打标签(untag)的以太网报文打上缺省VLAN标签，并为以太网报文分配表征服务等级的COS值；所述缺省VLAN用于没有业务时CPE的带内通信；
其中，所述第一流表与目前的流表相同，OLT能够根据接收到的报文中的源信息或目的信息查找第一流表，将所述接收到的报文与所述第一流表的内容进行匹配，查找到匹配的条目之后，确定所述接收到的报文的处理方案，如：丢弃所述报文、或发送所述报文，即根据所述第一流表建立CPE到SDN控制层的连接；在确定所述接收到的报文的处理方案为发送所述报文时，根据所述第一流表能够进一步确定所述报文的出端口，即进一步确定将所述报文发送至哪个端口；但是，此时确定的所述报文的出端口可能仅是SDN控制器的出端口，并未涉及所述报文的最终目的出端口；因此，根据所述第一流表不能准确的分配VLAN资源。
在一示例性实施方式中，网络侧也可以利用操作管理维护(Operation Administration Maintenance，OAM)连通性检查的方法，或其他方法来判断所述CPE的状态为在线或者离线。
步骤102，在所述认证报文通过后，获取所述认证报文对应的CPE的VLAN资源；
其中，服务器接收所述OLT经SDN控制器发送的认证报文，并将所述认证报文发送至AAA服务器，AAA服务器根据所述认证报文对所述CPE进行认证；认证通过后，所述服务器向vBNG申请动态VLAN资源。
所述服务器向vBNG申请动态VLAN资源可通过以下两种方式实现；第一种实现方式为：服务器经由vBNG或BNG向AAA服务器发送获取所述CPE的VLAN资源的请求消息；所述AAA服务器基于所述请求消息和预先 存储的用户信息数据中匹配用于获取所述CPE对应的VLAN资源的标识码，所述标识码用于指示唯一的vBNG或BNG；服务器根据所述标识码查找与所述标识码匹配的vBNG，并向所述vBNG申请所述CPE的VLAN资源，或向所述vBNG对应的BNG申请所述CPE的VLAN资源。
第二种实现方式为：服务器直接向AAA服务器发送获取所述CPE的VLAN资源的请求消息；所述AAA服务器基于所述请求消息和预先存储的用户信息数据中匹配用于获取所述CPE对应的VLAN资源的标识码，所述标识码用于指示唯一的vBNG或BNG；服务器根据所述标识码查找与所述标识码匹配的vBNG，并向所述vBNG申请所述CPE的VLAN资源，或向所述vBNG对应的BNG申请所述CPE的VLAN资源。
这里，所述动态VLAN资源是指业务和用户(S+C)VLAN；其中，S用于标识OLT，C用于标识用户。
步骤103，基于所述VLAN资源将所述第一流表更新为用于表征VLAN资源分配方式的第二流表，并发送第二流表；
其中，在步骤102中，认证CPE时能够确认CPE的基本信息或CPE申请的业务信息；服务器根据所述CPE的基本信息或CPE申请的业务信息，来确定获取所述CPE的业务处理节点信息，并根据所述CPE的业务处理节点信息确定untag的以太网报文最终的目的端口；因此，结合所述CPE的业务处理节点信息将所述第一流表更新为第二流表；使得以太网报文能够根据所述第二流表发送至最终的目的端口；
这里，所述第二流表用于表征所述VLAN资源的分配方式，即如何分配所述VLAN资源，所述CPE的基本信息包括所述CPE的线路标识、所述CPE的业务信息等。
服务器发送第二流表的实现方式也包括两种：第一种实现方式为，服务器将所述第二流表发送至OLT，OLT再将所述第二流表通过OMCI转发至ONT。第二种实现方式为，服务器将所述第二流表发送给OLT和ONT。
图3为本申请实施例服务器侧的一种资源分配方法的处理流程示意图。本实施例提供的资源分配方法的详细处理流程，如图3所示，包括以下步骤：
步骤201，服务器确定CPE的状态为在线时，发送第一流表；
其中，服务器接收OLT经由SDN控制器发送的UNI状态为连接的消息，确定所述CPE的状态为在线，向OLT发送所述第一流表，以使所述OLT根据所述第一流表匹配认证报文，并将匹配得到的认证报文发送至服务器；
这里，在CPE上线以后，ONT的UNI状态从Admin Down变更为Admin Up，UNI状态为Admin Down表示所述CPE离线，UNI状态为Admin Up表示所述CPE在线；ONT通过OMCI将OUI状态上报至OLT；同时ONT将untag的以太网报文打上缺省VLAN标签，并为以太网报文分配表征服务等级的COS值；所述缺省VLAN用于没有业务时CPE的带内通信；
其中，所述第一流表与目前的流表相同，OLT能够根据接收到的报文中的源信息或目的信息查找第一流表，将所述接收到的报文与所述第一流表的内容进行匹配，查找到匹配的条目之后，确定所述接收到的报文的处理方案，如：丢弃所述报文、或发送所述报文，即根据所述第一流表建立CPE到SDN控制层的连接；在确定所述接收到的报文的处理方案为发送所述报文时，根据所述第一流表能够进一步确定所述报文的出端口，即进一步确定将所述报文发送至哪个端口；但是，此时确定的所述报文的出端口可能仅是SDN控制器的出端口，并未涉及所述报文的最终目的出端口；因此，根据所述第一流表不能准确的分配VLAN资源。
在一示例性实施方式中，网络侧也可以利用OAM连通性检查的方法，或其他方法来判断所述CPE的状态为在线或者离线。
步骤202，在所述认证报文通过后，获取所述认证报文对应的CPE的VLAN资源；
其中，服务器接收所述OLT经SDN控制器发送的认证报文，并将所述认证报文发送至AAA服务器，AAA服务器根据所述认证报文对所述CPE进行认证；认证通过后，所述服务器向vBNG申请动态VLAN资源。
所述服务器向vBNG申请动态VLAN资源可通过两种方式实现；第一种实现方式为：服务器经由vBNG或BNG向AAA服务器发送获取所述CPE的VLAN资源的请求消息；所述AAA服务器基于所述请求消息和预先存储的用户信息数据中匹配用于获取所述CPE对应的VLAN资源的标识码，所 述标识码用于指示唯一的vBNG或BNG；服务器根据所述标识码查找与所述标识码匹配的vBNG，并向所述vBNG申请所述CPE的VLAN资源，或向所述vBNG对应的BNG申请所述CPE的VLAN资源。
第二种实现方式为：服务器直接向AAA服务器发送获取所述CPE的VLAN资源的请求消息；所述AAA服务器基于所述请求消息和预先存储的用户信息数据中匹配用于获取所述CPE对应的VLAN资源的标识码，所述标识码用于指示唯一的vBNG或BNG；服务器根据所述标识码查找与所述标识码匹配的vBNG，并向所述vBNG申请所述CPE的VLAN资源，或向所述vBNG对应的BNG申请所述CPE的VLAN资源。
这里，所述动态VLAN资源是指业务和用户(S+C)VLAN资源；其中，S用于标识OLT，C用于标识用户。
步骤203，基于所述VLAN资源将所述第一流表更新为用于表征所述VLAN资源分配方式的第二流表，并发送第二流表；
其中，在步骤202中，认证CPE时能够确认CPE的基本信息或CPE申请的业务信息；服务器根据所述CPE的基本信息或CPE申请的业务信息，来确定获取所述CPE的业务处理节点信息，并根据所述CPE的业务处理节点信息确定untag的以太网报文最终的目的端口；因此，结合所述CPE的业务处理节点信息将所述第一流表更新为第二流表；使得以太网报文能够根据所述第二流表发送至最终的目的端口；
这里，所述第二流表用于表征所述VLAN资源的分配方式，即如何分配所述VLAN资源，所述CPE的基本信息包括所述CPE的线路标识、所述CPE的业务信息等。
服务器发送第二流表的实现方式也包括两种：第一种实现方式为，服务器将所述第二流表发送至OLT，OLT再将所述第二流表通过OMCI转发至ONT。第二种实现方式为，服务器将所述第二流表发送给OLT和ONT。
步骤204，设置动态VLAN资源的使用期限，根据所述使用期限对所述VLAN资源进行处理；
其中，服务器可以设置动态VLAN资源的使用期限，并检测所述CPE 的网络连接状态为未建立的时间；其中，所述CPE的网络连接状态为未建立表示所述CPE处于离线状态，所述CPE的网络连接状态为建立表示所述CPE处于在线状态；在所述CPE的网络连接状态为未建立的时间小于所述使用期限时，保存所述S+C VLAN资源；即无论所述CPE是在线状态还是离线状态，均不释放S+C VLAN资源；在所述CPE的网络连接状态为未建立的时间大于或等于所述使用期限时，释放所述动态VLAN资源，所述CPE下次再上线时，需重新分配S+C VLAN资源；
这里，在所述动态VLAN资源的使用期限内，无论所述CPE的状态为在线还是离线，均不影响S+C VLAN资源的资源分配。
在一示例性实施方式中，所述动态VLAN资源的使用期限为永久，即所述CPE上线一次，即可长期获得S+C VLAN资源。
图4为本申请实施例服务器侧的一种资源分配方法的处理流程示意图。本实施例提供的资源分配方法的处理流程，如图4所示，包括以下步骤：
步骤301，服务器确定CPE的状态为在线时，发送第一流表；
其中，服务器接收OLT经由SDN控制器发送的UNI状态为连接的消息，确定所述CPE的状态为在线，向OLT发送所述第一流表，以使所述OLT根据所述第一流表匹配认证报文，并将匹配得到的认证报文发送至服务器；
这里，在CPE上线以后，ONT的UNI状态从Admin Down变更为Admin Up，UNI状态为Admin Down表示所述CPE离线，UNI状态为Admin Up表示所述CPE在线；ONT通过OMCI将OUI状态上报至OLT；同时，ONT将untag的以太网报文打上缺省VLAN标签，并为以太网报文分配表征服务等级的COS值；所述缺省VLAN用于没有业务时CPE的带内通信；
其中，所述第一流表与目前的流表相同，OLT能够根据接收到的报文中的源信息或目的信息查找第一流表，将所述接收到的报文与所述第一流表的内容进行匹配，查找到匹配的条目之后，确定所述接收到的报文的处理方案，如：丢弃所述报文、或发送所述报文，即根据所述第一流表建立CPE到SDN控制层的连接；在确定所述接收到的报文的处理方案为发送所述报文时，根据所述第一流表能够进一步确定所述报文的出端口，即进一步确定将所述报文发送至哪个端口；但是，此时确定的所述报文的出端口可能仅是SDN控制 器的出端口，并未涉及所述报文的最终目的出端口；因此，根据所述第一流表不能准确的分配VLAN资源。
在一示例性实施方式中，网络侧也可以利用OAM连通性检查的方法，或其他方法来判断所述CPE的状态为在线或者离线。
步骤302，在所述认证报文通过后，获取所述认证报文对应的CPE的VLAN资源；
其中，服务器接收所述OLT经SDN控制器发送的认证报文，并将所述认证报文发送至AAA服务器，AAA服务器根据所述认证报文对所述CPE进行认证；认证通过后，所述服务器向vBNG申请动态VLAN资源。
所述服务器向vBNG申请动态VLAN资源可通过两种方式实现；第一种实现方式为：服务器经由vBNG或BNG向AAA服务器发送获取所述CPE的VLAN资源的请求消息；所述AAA服务器基于所述请求消息和预先存储的用户信息数据中匹配用于获取所述CPE对应的VLAN资源的标识码，所述标识码用于指示唯一的vBNG或BNG；服务器根据所述标识码查找与所述标识码匹配的vBNG，并向所述vBNG申请所述CPE的VLAN资源，或向所述vBNG对应的BNG申请所述CPE的VLAN资源。
第二种实现方式为：服务器直接向AAA服务器发送获取所述CPE的VLAN资源的请求消息；所述AAA服务器基于所述请求消息和预先存储的用户信息数据中匹配用于获取所述CPE对应的VLAN资源的标识码，所述标识码用于指示唯一的vBNG或BNG；服务器根据所述标识码查找与所述标识码匹配的vBNG，并向所述vBNG申请所述CPE的VLAN资源，或向所述vBNG对应的BNG申请所述CPE的VLAN资源。
这里，所述动态VLAN资源是指业务和用户(S+C)VLAN资源；其中，S用于标识OLT，C用于标识用户。
步骤303，基于所述VLAN资源将所述第一流表更新为用于表征所述VLAN资源分配方式的第二流表，并发送第二流表；
其中，在步骤302中，认证CPE时能够确认CPE的基本信息或CPE申请的业务信息；服务器根据所述CPE的基本信息或CPE申请的业务信息， 来确定获取所述CPE的业务处理节点信息，并根据所述CPE的业务处理节点信息确定untag的以太网报文最终的目的端口；因此，结合所述CPE的业务处理节点信息将所述第一流表更新为第二流表；使得以太网报文能够根据所述第二流表发送至最终的目的端口；
这里，所述第二流表用于表征所述VLAN资源的分配方式，即如何分配所述VLAN资源，所述CPE的基本信息包括所述CPE的线路标识、所述CPE的业务信息等。
服务器发送第二流表的实现方式也包括两种：第一种实现方式为，服务器将所述第二流表发送至OLT，OLT再将所述第二流表通过OMCI转发至ONT。第二种实现方式为，服务器将所述第二流表发送给OLT和ONT。
步骤304，服务器删除动态VLAN资源；
其中，在所述CPE的业务注销时，服务器删除S+C VLAN资源；
这里，既可以在所述CPE上线状态下删除S+C VLAN资源，也可以在所述CPE离线状态下删除S+C VLAN资源。
图5为本申请实施例OLT侧的一种资源分配方法的处理流程示意图。本实施例提供的资源分配方法的处理流程，如图5所示，包括以下步骤：
步骤401，CPE在线时，OLT通知服务器所述CPE的状态为在线；
其中，所述OLT向SDN控制器发送ONT UNI状态为连接，所述ONT UNI状态为连接表示CPE在线，所述SDN控制器再通知服务器所述CPE的状态为在线。
步骤402，获取认证报文，并发送认证报文至服务器；
其中，OLT接收服务器发送的第一流表，根据所述第一流表匹配认证报文；即OLT根据接收到的报文中的源信息或目的信息查找第一流表，将所述接收到的报文与所述第一流表的内容进行匹配，查找到匹配的条目之后，即所接收到的报文为认证报文，可根据第一流表中匹配的条目确定所述接收到的报文的处理方案，如：丢弃所述报文、或发送所述报文，即根据所述第一流表建立CPE到SDN控制层的连接；在确定所述接收到的报文的处理方案为发送所述报文时，根据所述第一流表能够进一步确定所述报文的出端口， 即进一步确定将所述报文发送至哪个端口；但是，此时确定的所述报文的出端口可能仅是SDN控制器的出端口，并未涉及所述报文的最终目的出端口；因此，根据所述第一流表不能准确的分配VLAN资源。
这里，所述认证报文的认证方式包括：802.1x(EAPoL)认证协议中的方式、动态主机配置协议(Dynamic Host Configuration Protocol，DHCP)用户线标识方式、通过以太网传输点对点协议(Point-to-Point Protocol over Ethernet，PPPoE)方式只允许PPPoE discovery和session阶段的报文通过和固定网络协议(Internet Protocol，IP)方式；其中，固定IP方式包括：在业务订购时，直接配置预留S+C VLAN资源，或者OLT直接按照预先配置的流表转发S+C VLAN资源。
步骤403，接收用于表征所述VLAN资源的分配方式的第二流表，根据所述第二流表对所述CPE进行VLAN资源分配；
其中，OLT接收服务器发送的第二流表，将所述第二流表发送至ONT，OLT和ONT基于所述第二流表对所述CPE进行VLAN资源分配；或OLT接收服务器发送的第二流表，ONT也接收服务器发送的第二流表，OLT和ONT基于所述第二流表对所述CPE进行VLAN资源分配。
其中，所述第二流表为服务器根据对CPE进行认证时获得的CPE的基本信息或CPE申请的业务信息来确定获取所述CPE的业务处理节点信息，并根据所述CPE的业务处理节点信息确定untag的以太网报文最终的目的端口；因此，结合所述CPE的业务处理节点信息将所述第一流表转换为第二流表；使得以太网报文能够根据所述第二流表发送至最终的目的端口；
这里，所述第二流表用于表征所述VLAN资源的分配方式，即如何分配所述VLAN资源，所述CPE的基本信息包括所述CPE的线路标识、所述CPE的业务信息等。
以吉比特无源光网络(Gigabit Passive Optical Network，GPON)系统为例，SDN架构下VLAN资源的动态分配示意图，如图6所示，由安装于服务器上的vOLT应用控制ONT和OLT完成CPE到vBNG的VLAN资源分配和连接；在用户在订购业务时，本实施例提供的资源分配方法的处理流程，如图7所示，包括以下步骤：
步骤501，用户订购业务时，业务平台为用户配置AAA服务器和vBNG，或为用户配置AAA服务器和BNG；
其中，运营商的业务平台根据用户的订购信息为用户配置AAA服务器和vBNG；或运营商的业务平台根据用户的订购信息为用户配置AAA服务器和BNG；
其中，所述订购信息包括：用户名、用户所在的物理地址、用户所属的CPE获得服务时提供的用户密码等信息。
步骤502，ONT上报UNI状态至OLT；
其中，CPE上线后，ONT的UNI状态从Admin Down变更为Admin Up，UNI状态为Admin Down表示所述CPE离线，UNI状态为Admin Up表示所述CPE在线；ONT通过OMCI将OUI状态上报至OLT；
同时，ONT将untag的以太网报文打上缺省VLAN标签，并为以太网报文分配表征服务等级的COS值；所述缺省VLAN用于没有业务时CPE的带内通信。
步骤503，OLT将UNI状态上报至SDN控制器，SDN控制器通知服务器UNI状态；服务器通过SDN控制器下发第一流表至OLT；
这里，所述第一流表与目前的流表相同，OLT能够根据接收到的报文中的源信息或目的信息查找第一流表，将所述接收到的报文与所述第一流表的内容进行匹配，查找到匹配的条目之后，即所接收到的报文为认证报文，可根据第一流表中匹配的条目确定所述接收到的报文的处理方案，如：丢弃所述报文、或发送所述报文，即根据所述第一流表建立CPE到SDN控制层的连接；在确定所述接收到的报文的处理方案为发送所述报文时，根据所述第一流表能够进一步确定所述报文的出端口，即进一步确定将所述报文发送至哪个端口；但是，此时确定的所述报文的出端口可能仅是SDN控制器的出端口，并未涉及所述报文的最终目的出端口；因此，根据所述第一流表不能准确的分配VLAN资源；
其中，所述认证报文的认证方式包括：802.1x(EAPoL)认证协议中的方式、DHCP用户线标识方式、通过PPPoE方式只允许PPPoE discovery和 session阶段的报文通过和固定IP方式；其中，固定IP方式包括：在业务订购时，直接配置预留S+C VLAN资源，或者OLT直接按照预先配置的流表转发S+C VLAN资源。
步骤504，在所述认证报文通过后，服务器获取所述认证报文对应的CPE的VLAN资源；
其中，服务器根据OLT经SDN控制器发送的认证报文，并将所述认证报文发送至AAA服务器，AAA服务器根据所述认证报文对所述CPE进行认证；认证通过后，所述服务器向vBNG申请动态VLAN资源。
所述服务器向vBNG申请动态VLAN资源可通过以下两种方式实现；第一种实现方式为：服务器经由vBNG或BNG向AAA服务器发送获取所述CPE的VLAN资源的请求消息；所述AAA服务器基于所述请求消息和预先存储的用户信息数据中匹配用于获取所述CPE对应的VLAN资源的标识码，所述标识码用于指示唯一的vBNG或BNG；服务器根据所述标识码查找与所述标识码匹配的vBNG，并向所述vBNG申请所述CPE的VLAN资源，或向所述vBNG对应的BNG申请所述CPE的VLAN资源。
第二种实现方式为：服务器直接向AAA服务器发送获取所述CPE的VLAN资源的请求消息；所述AAA服务器基于所述请求消息和预先存储的用户信息数据中匹配用于获取所述CPE对应的VLAN资源的标识码，所述标识码用于指示唯一的vBNG或BNG；服务器根据所述标识码查找与所述标识码匹配的vBNG，并向所述vBNG申请所述CPE的VLAN资源，或向所述vBNG对应的BNG申请所述CPE的VLAN资源。
这里，所述动态VLAN资源是指业务和用户(S+C)VLAN资源；其中，S用于标识OLT，C用于标识用户。
步骤505，服务器将所述第一流表更新为用于表征所述VLAN资源分配方式的第二流表，并发送第二流表；
其中，认证CPE时能够确认CPE的基本信息或CPE申请的业务信息；服务器根据所述CPE的基本信息或CPE申请的业务信息，来确定获取所述CPE的业务处理节点信息，并根据所述CPE的业务处理节点信息确定untag的以太网报文最终的目的端口；因此，结合所述CPE的业务处理节点信息将 所述第一流表转换为第二流表，这里，所述第二流表用于表征所述VLAN资源的分配方式，即如何分配所述VLAN资源，所述CPE的基本信息包括所述CPE的线路标识、所述CPE的业务信息等。
服务器发送第二流表的实现方式也包括两种：第一种实现方式为，服务器将所述第二流表发送至OLT，OLT再将所述第二流表通过OMCI转发至ONT；第二种实现方式为，服务器将所述第二流表发送给OLT和ONT；至此，服务器控制ONT和OLT完成CPE到vBNG的VLAN资源分配和连接。
在一示例性实施方式中，CPE用户在注销业务时，所述方法还可以包括：
步骤506，AAA服务器删除CPE信息，并向服务器发送删除CPE信息的消息。
步骤507，服务器删除S+C VLAN资源。
需要说明的是，本申请上述实施例所述的服务器执行的功能可由安装于服务器上的虚拟光线路终端(Virtual Optical Line Terminal，VOLT)应用来实现。
图8为本申请实施例的一种服务器的组成结构示意图。如图8所示，本实施例提供的服务器，包括：第一发送模块11、获取模块12、更新模块13和第二发送模块14；其中，
所述第一发送模块11，配置为确定CPE的状态为在线时，发送第一流表，以接收OLT基于所述第一流表发送的认证报文；
所述获取模块12，配置为在所述认证报文通过后，获取所述认证报文对应的CPE的VLAN资源；
这里，所述动态VLAN资源是指S+CVLAN资源；其中，S用于标识OLT，C用于标识用户；
所述更新模块13，配置为基于所述VLAN资源将所述第一流表更新为用于表征所述VLAN资源分配方式的第二流表；
所述第二发送模块14，配置为发送第二流表，以使所述OLT和ONT根据所述第二流表对所述CPE进行VLAN资源分配。
在一示例性实施方式中，所述第一发送模块11，可以配置为接收所述 OLT经SDN控制器发送的UNI状态为连接的消息，确定所述CPE的状态为在线；
这里，在CPE上线以后，ONT的UNI状态从Admin Down变更为Admin Up，UNI状态为Admin Down表示所述CPE离线，UNI状态为Admin Up表示所述CPE在线；ONT通过OMCI将OUI状态上报至OLT；同时ONT将untag的以太网报文打上缺省VLAN标签，并为以太网报文分配表征服务等级的COS值；所述缺省VLAN用于没有业务时CPE的带内通信；
其中，所述第一流表与目前的流表相同，OLT能够根据接收到的报文中的源信息或目的信息查找第一流表，将所述接收到的报文与所述第一流表的内容进行匹配，查找到匹配的条目之后，确定所述接收到的报文的处理方案，如：丢弃所述报文、或发送所述报文，即根据所述第一流表建立CPE到SDN控制层的连接；在确定所述接收到的报文的处理方案为发送所述报文时，根据所述第一流表能够进一步确定所述报文的出端口，即进一步确定将所述报文发送至哪个端口；但是，此时确定的所述报文的出端口可能仅是SDN控制器的出端口，并未涉及所述报文的最终目的出端口；因此，根据所述第一流表不能准确的分配VLAN资源。
在一示例性实施方式中，所述获取模块12，可以配置为经由关vBNG或BNG向AAA服务器发送获取所述CPE对应的VLAN资源的请求消息，或直接向所述AAA服务器发送获取所述CPE对应的VLAN资源的请求消息；
接收所述AAA服务器基于所述请求消息和预先存储的用户信息数据发送的用于获取所述CPE对应的VLAN资源的标识码，所述标识码用于指示唯一的vBNG或BNG；
基于所述标识码获取所述CPE对应的VLAN资源。
在一示例性实施方式中，所述更新模块13，可以配置为根据所述VLAN资源中的线路标识信息和业务处理节点信息，将所述第一流表更新为用于表征所述VLAN资源的分配方式的第二流表；
其中，所述更新模块13可以根据CPE的基本信息或CPE申请的业务信息，来确定获取所述CPE的业务处理节点信息，并根据所述CPE的业务处理节点信息确定untag的以太网报文最终的目的端口；因此，结合所述CPE 的业务处理节点信息将所述第一流表转换为第二流表；使得以太网报文能够根据所述第二流表发送至最终的目的端口。
这里，所述第二流表用于表征所述VLAN资源的分配方式，即如何分配所述VLAN资源，所述CPE的基本信息包括所述CPE的线路标识、所述CPE的业务信息等。
在一示例性实施方式中，所述服务器还可以包括：删除模块15，配置为在用户撤销业务时，删除动态VLAN资源。
在一示例性实施方式中，所述服务器还可以包括：处理模块16，配置为设置动态VLAN资源的使用期限，检测所述CPE的网络连接状态为未建立的时间；
在所述CPE的网络连接状态为未建立的时间小于所述使用期限时，保存所述动态VLAN资源；
在所述CPE的网络连接状态为未建立的时间大于或等于所述使用期限时，释放所述动态VLAN资源。
在一示例性实施方式中，所述第二发送模块14可以配置为发送所述第二流表至OLT，以使所述OLT获知所述第二流表并将所述第二流表转发至ONT；或，发送所述第二流表至OLT和ONT。
图9为本申请实施例的一种光线路终端的组成结构示意图。如图9所示，本实施例提供的光线路终端，包括：通知模块21、确定模块22、接收模块23和第三发送模块24；其中，
所述通知模块21，配置为在CPE在线时，通知服务器所述CPE的状态为在线；
所述确定模块22，配置为接收服务器发送的第一流表，基于所述第一流表确定认证报文，并发送所述认证报文至服务器；
所述接收模块23，配置为接收用于表征VLAN资源的分配方式的第二流表，根据所述第二流表对所述CPE；
其中，所述第二流表为服务器根据对CPE进行认证时获得的CPE的基本信息或CPE申请的业务信息来确定获取所述CPE的业务处理节点信息， 并根据所述CPE的业务处理节点信息确定untag的以太网报文最终的目的端口；因此，结合所述CPE的业务处理节点信息将所述第一流表转换为第二流表；使得以太网报文能够根据所述第二流表发送至最终的目的端口；
这里，所述第二流表用于表征所述VLAN资源的分配方式，即如何分配所述VLAN资源，所述CPE的基本信息包括所述CPE的线路标识、所述CPE的业务信息等。
所述第三发送模块24，配置为将所述第二流表通过OMCI发送至ONT，以使所述OLT和所述ONT进行VLAN资源分配。
在一示例性实施方式中，所述通知模块21，可以配置为向SDN控制器发送ONT的UNI状态为连接，以使所述SDN控制器通知服务器所述CPE的状态为在线。
在一示例性实施方式中，所述确定模块22，可以配置为接收服务器发送的第一流表，根据所述第一流表匹配认证报文；
其中，所述确定模块22可以根据接收到的报文中的源信息或目的信息查找服务器发送的第一流表，将所述接收到的报文与所述第一流表的内容进行匹配，查找到匹配的条目之后，即所接收到的报文为认证报文，可根据第一流表中匹配的条目确定所述接收到的报文的处理方案，如：丢弃所述报文、或发送所述报文，即根据所述第一流表建立CPE到SDN控制层的连接；在确定所述接收到的报文的处理方案为发送所述报文时，根据所述第一流表能够进一步确定所述报文的出端口，即进一步确定将所述报文发送至哪个端口；但是，此时确定的所述报文的出端口可能仅是SDN控制器的出端口，并未涉及所述报文的最终目的出端口；因此，根据所述第一流表不能准确的分配VLAN资源。
这里，所述认证报文的认证方式包括：802.1x(EAPoL)认证协议中的方式、DHCP用户线标识方式、通过PPPoE方式只允许PPPoE discovery和session阶段的报文通过和固定IP方式；其中，所述固定IP方式包括：在业务订购时，直接配置预留S+C VLAN资源，或者OLT直接按照预先配置的流表转发S+C VLAN资源。
图10为本申请实施例的一种资源分配系统的组成结构示意图。如图10 所示，本实施例提供的资源分配系统，包括：服务器1和光线路终端2；其中，
所述服务器1，配置为确定CPE的状态为在线时，发送第一流表；
所述光线路终端2，配置为基于所述第一流表确定认证报文，并发送所述认证报文至所述服务器；
所述服务器1，配置为在所述认证报文通过后，获取所述认证报文对应的CPE的VLAN资源；基于所述VLAN资源将所述第一流表更新为用于表征VLAN资源分配方式的第二流表，并发送第二流表；
所述光线路终端2，配置为根据所述第二流表对所述CPE进行VLAN资源分配。
本实施例所提供的服务器执行的功能至少包括图8所示实施例所提供的服务器执行的功能；本实施例所提供的光线路终端执行的功能至少包括图9所示实施例所提供的光线路终端执行的功能。
此外，本申请实施例还提供一种计算机可读介质，存储有计算机可执行指令，所述计算机可执行指令被处理器执行时实现服务器侧的资源分配方法的步骤。
此外，本申请实施例还提供一种计算机可读介质，存储有计算机可执行指令，所述计算机可执行指令被处理器执行时实现OLT侧的资源分配方法的步骤。
本领域内的技术人员应明白，本申请的实施例可提供为方法、设备、系统、或计算机程序产品。因此，本申请可采用硬件实施例、软件实施例、或结合软件和硬件方面的实施例的形式。而且，本申请可采用在一个或多个其中包含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和光学存储器等)上实施的计算机程序产品的形式。
本申请是参照根据本申请实施例的方法、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。
需要说明的是，在实际应用中，所述第一发送模块11、获取模块12、更新模块13、第二发送模块14、删除模块15和处理模块16执行的功能可由位于服务器上的中央处理器(CPU)、或微处理器(MPU)、或数字信号处理器(DSP)、或可编程门阵列(FPGA)实现；所述通知模块21、确定模块22、接收模块23和第三发送模块24执行的功能可由位于OLT上的CPU、或MPU、或DSP、或FPGA实现。
本领域普通技术人员可以理解，上文中所公开方法中的全部或某些步骤、系统、装置中的功能模块/单元可以被实施为软件、固件、硬件及其适当的组合。在硬件实施方式中，在以上描述中提及的功能模块/单元之间的划分不一定对应于物理组件的划分；例如，一个物理组件可以具有多个功能，或者一个功能或步骤可以由若干物理组件合作执行。某些组件或所有组件可以被实施为由处理器，如数字信号处理器或微处理器执行的软件，或者被实施为硬件，或者被实施为集成电路，如专用集成电路。这样的软件可以分布在计算机可读介质上，计算机可读介质可以包括计算机存储介质(或非暂时性介质)和通信介质(或暂时性介质)。如本领域普通技术人员公知的，术语计算机存储介质包括在用于存储信息(诸如计算机可读指令、数据结构、程序模块或其他数据)的任何方法或技术中实施的易失性和非易失性、可移除和不可移除介质。计算机存储介质包括但不限于RAM、ROM、EEPROM、闪存或 其他存储器技术、CD-ROM、数字多功能盘(DVD)或其他光盘存储、磁盒、磁带、磁盘存储或其他磁存储装置、或者可以用于存储期望的信息并且可以被计算机访问的任何其他的介质。此外，本领域普通技术人员公知的是，通信介质通常包含计算机可读指令、数据结构、程序模块或者诸如载波或其他传输机制之类的调制数据信号中的其他数据，并且可包括任何信息递送介质。
以上所述仅为本申请的示例性实施例而已，并非用于限定本申请的保护范围。
工业实用性
本申请实施例提供一种资源分配方法、服务器、光线路终端及系统，使得OLT和ONT能够根据CPE或CPE申请的业务来进行VLAN资源的动态分配，避免VLAN资源浪费及VLAN资源不足的问题。

Claims (21)

  1. 一种资源分配方法，应用于服务器，包括：
    确定用户终端设备CPE的状态为在线时，发送第一流表(101，201，301)，以接收光线路终端OLT基于所述第一流表发送的认证报文；
    在所述认证报文通过后，获取所述认证报文对应的CPE的虚拟局域网VLAN资源(102，202，302)；
    基于所述VLAN资源将所述第一流表更新为用于表征VLAN资源分配方式的第二流表，并发送第二流表(103，203，303)，以使所述OLT和光网络单元ONT根据所述第二流表对所述CPE进行VLAN资源分配。
  2. 根据权利要求1所述的方法，其中，所述服务器确定CPE的状态为在线，包括：
    所述服务器接收所述OLT经软件定义网络SDN控制器发送的用户网络接口UNI状态为连接的消息。
  3. 根据权利要求1所述的方法，其中，所述获取所述认证报文对应的CPE的VLAN资源，包括：
    所述服务器经由虚拟宽带网络网关vBNG或宽带网络网关BNG向认证授权计费AAA服务器发送获取所述CPE的VLAN资源的请求消息，或所述服务器直接向所述AAA服务器发送获取所述CPE的VLAN资源的请求消息；
    接收所述AAA服务器基于所述请求消息和预先存储的用户信息数据发送的用于获取所述CPE对应的VLAN资源的标识码，所述标识码用于指示唯一的vBNG或BNG；
    所述服务器基于所述标识码获取所述CPE对应的VLAN资源。
  4. 根据权利要求1所述的方法，其中，所述基于所述VLAN资源将所述第一流表更新为用于表征VLAN资源的分配方式的第二流表，包括：
    根据所述VLAN资源中的线路标识信息和业务处理节点信息，将所述第一流表更新为用于表征所述VLAN资源的分配方式的第二流表。
  5. 根据权利要求1至4中任一项所述的方法，所述方法还包括：服务 器删除VLAN资源(304)。
  6. 根据权利要求1至4中任一项所述的方法，所述方法还包括：
    设置VLAN资源的使用期限；
    检测所述CPE的网络连接状态为未建立的时间；
    在所述CPE的网络连接状态为未建立的时间小于所述使用期限时，保存所述VLAN资源；
    在所述CPE的网络连接状态为未建立的时间大于或等于所述使用期限时，释放所述VLAN资源(204)。
  7. 根据权利要求1所述的方法，其中，所述发送第二流表，包括：
    所述服务器发送所述第二流表至OLT，以使所述OLT获知所述第二流表并将所述第二流表转发至ONT；或，
    所述服务器发送所述第二流表至OLT和ONT。
  8. 一种资源分配方法，应用于光线路终端OLT，包括：
    用户终端设备CPE在线时，通知服务器所述CPE的状态为在线(401)；
    接收服务器发送的第一流表，基于所述第一流表确定认证报文，并发送所述认证报文至服务器(402)；
    接收用于表征虚拟局域网VLAN资源的分配方式的第二流表，根据所述第二流表对所述CPE进行VLAN资源分配(403)。
  9. 根据权利要求8所述的方法，所述方法还包括：所述OLT发送所述第二流表至光网络单元ONT。
  10. 根据权利要求8或9所述的方法，其中，所述OLT通知服务器所述CPE的状态为在线，包括：
    所述OLT向软件定义网络SDN控制器发送光网络单元ONT用户网络接口UNI状态为连接，以使所述SDN控制器通知所述服务器所述CPE的状态为在线。
  11. 一种服务器，包括：第一发送模块(11)、获取模块(12)、更新模块(13)和第二发送模块(14)；其中，
    所述第一发送模块(11)，配置为确定用户终端设备CPE的状态为在线时，发送第一流表，以接收光线路终端OLT基于所述第一流表发送的认证报文；
    所述获取模块(12)，配置为在所述认证报文通过后，获取所述认证报文对应的CPE的虚拟局域网VLAN资源；
    所述更新模块(13)，配置为基于所述VLAN资源将所述第一流表更新为用于表征所述VLAN资源分配方式的第二流表；
    所述第二发送模块(14)，配置为发送第二流表，以使所述OLT和光网络单元ONT根据所述第二流表对所述CPE进行VLAN资源分配。
  12. 根据权利要求11所述的服务器，其中，所述第一发送模块(11)，配置为接收所述OLT经软件定义网络SDN控制器发送的用户网络接口UNI状态为连接的消息。
  13. 根据权利要求11所述的服务器，其中，所述获取模块(12)，配置为经由虚拟宽带网络网关vBNG或宽带网络网关BNG向认证授权计费AAA服务器发送获取所述CPE对应的VLAN资源的请求消息，或直接向所述AAA服务器发送获取所述CPE对应的VLAN资源的请求消息；
    接收所述AAA服务器基于所述请求消息和预先存储的用户信息数据发送的用于获取所述CPE对应的VLAN资源的标识码，其中，所述标识码用于指示唯一的vBNG或BNG；
    基于所述标识码获取所述CPE对应的VLAN资源。
  14. 根据权利要求11所述的服务器，其中，所述更新模块(13)，配置为根据所述VLAN资源中的线路标识信息和业务处理节点信息，将所述第一流表更新为用于表征所述VLAN资源的分配方式的第二流表。
  15. 根据权利要求11至14中任一项所述的服务器，所述服务器还包括：删除模块(15)，配置为删除VLAN资源。
  16. 根据权利要求11至14中任一项所述的服务器，所述服务器还包括：处理模块(16)，配置为设置VLAN资源的使用期限，检测所述CPE的网络连接状态为未建立的时间；
    在所述CPE的网络连接状态为未建立的时间小于所述使用期限时，保存所述VLAN资源；
    在所述CPE的网络连接状态为未建立的时间大于或等于所述使用期限时，释放所述VLAN资源。
  17. 根据权利要求11所述的服务器，其中，所述第二发送模块(14)，配置为发送所述第二流表至OLT，以使所述OLT获知所述第二流表，并将所述第二流表转发至ONT；或，发送所述第二流表至OLT和ONT。
  18. 一种光线路终端，包括：通知模块(21)、确定模块(22)和接收模块(23)；其中，
    所述通知模块(21)，配置为在用户终端设备CPE在线时，通知服务器所述CPE的状态为在线；
    所述确定模块(22)，配置为接收服务器发送的第一流表，基于所述第一流表确定认证报文，并发送所述认证报文至服务器；
    所述接收模块(23)，配置为接收用于表征虚拟局域网VLAN资源的分配方式的第二流表，根据所述第二流表对所述CPE进行VLAN资源分配。
  19. 根据权利要求18所述的光线路终端，所述光线路终端还包括第三发送模块(24)，配置为发送所述第二流表至光网络单元ONT。
  20. 根据权利要求18或19所述的光线路终端，其中，所述通知模块(21)，配置为向软件定义网络SDN控制器发送ONT用户网络接口UNI状态为连接，以使所述SDN控制器通知服务器所述CPE的状态为在线。
  21. 一种资源分配系统，包括：服务器(1)和光线路终端(2)，其中，所述服务器(1)，配置为确定用户终端设备CPE的状态为在线时，发送第一流表；所述光线路终端(2)，配置为基于所述第一流表确定认证报文，并发送所述认证报文至所述服务器，根据所述第二流表对所述CPE进行虚拟局域网VLAN资源分配；所述服务器(1)，配置为在所述认证报文通过后，获取所述认证报文对应的CPE的VLAN资源；基于所述VLAN资源将所述第一流表更新为用于表征VLAN资源分配方式的第二流表，并发送第二流表。
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