CN107360105A - The method, apparatus and system, OLT of SDN management controls - Google Patents
The method, apparatus and system, OLT of SDN management controls Download PDFInfo
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- CN107360105A CN107360105A CN201610303518.1A CN201610303518A CN107360105A CN 107360105 A CN107360105 A CN 107360105A CN 201610303518 A CN201610303518 A CN 201610303518A CN 107360105 A CN107360105 A CN 107360105A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/15—Interconnection of switching modules
- H04L49/1507—Distribute and route fabrics, e.g. sorting-routing or Batcher-Banyan
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/40—Support for services or applications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
Abstract
The invention provides the method, apparatus and system, OLT of a kind of SDN management controls, wherein, the system includes：Software defined network SDN controllers, for the optical network device ONU in administrative network and optical line terminal OLT to be controlled and/or managed；Agent node, it is connected between the SDN controllers and the ONU, the OLT and one or more ONU is managed and/or controlled for acting on behalf of the SDN controllers.By the present invention, the SDN controller service treatment effeciencies solved in correlation technique are low, the problem of waste bandwidth resource.
Description
Technical field
The present invention relates to the communications field, and the method, apparatus controlled and system, OLT are managed in particular to a kind of SDN.
Background technology
Currently, by various intelligent terminals, various cloud service APP and huge fiber optic network and wireless communication networks
The Global Internet explosion type development that network collectively forms, the increasingly variation of Network is greatly have stimulated with complicating.Together
When as user is to the growing day by day of integrated services communication demand, and customize, the appearance of differentiated demand, the number of optical-fiber network
Direction according to forwarding surface towards extra long distance, vast capacity, superelevation speed is developed, and control chain of command is then flexible, soft towards intelligence
Part defines, user mutual, safe and reliable, energy-efficient direction are developed.Opening and low cost turn into future network development
Core objective.Simultaneously with the rise of internet OTT (Over The Top) manufacturer, traditional network operator is progressively " by pipeline
Change ", face " price scissors " predicament.First door of the access network as user Internet access, it is the core of user network experience
The heart, it is contact business and the tie of user.With the change of the Internet service driving network architecture, people propose to optical access network
New requirement is, it is necessary to the features such as being further equipped with intelligence, open, serviceization, and traditional access planar network architecture is difficult to technology
Meet demand.
The service quality of access network is directly connected to telecom operators and the vital interests of user.How to realize that user's is fast
Quick access enters, and fast failure positioning and recovery, conveniently and efficiently realizes the configuration of user terminal, improves Consumer's Experience, control operation
Cost and the earning rate for improving network, have become access network urgent problem to be solved.Traditional access network uses manually substantially
Mode be managed, the opening an account of such as user, business handling, troubleshooting, this management mode need substantial amounts of manpower and
Material resources, the operation cost of access network is set to remain high, and poor user experience.In addition, existing customer terminal equipment
(Customer Premise Equipment, referred to as CPE) can not support flexible upgrading service, cause fixed network to run business
Slower development.
Software defined network (Software Define Network, SDN) is a kind of new network architecture, it is intended to will
Network-based control is separated with forwarding, and programmable control is realized to underlying device, so as to reach network opening with flexibly matching somebody with somebody
The target put.SDN has broken traditional control system closed, ossify for relying on proprietary network element and being formed from framework, is access network
Development provide new thinking, such as control and forward separating, centralized Control, optical access network apparatus is gradually possessed intelligent control
Function processed, there is provided the ability of integrated service, simplify operation, improve the efficiency of network O＆M.
In the related art, Fig. 1 is the schematic diagram that point-to-point mode manages CPE in correlation technique, as shown in figure 1, SDN
The multiple vCPE and multiple CPE that management of the controller to CPE is utilized in controller establish point-to-point connection, and to CPE
Point-to-point control and management are carried out, in such cases, disposal ability and the utilization of resources to SDN controllers have higher want
Ask.
But access net system is realized using SDN frameworks and concentrated due to its own intrinsic construction characteristic (point-to-multipoint)
After control, as shown in figure 1, in theory, SDN controllers can directly control optical line terminal (Optical Line Terminal,
Referred to as OLT) connection into preceding individual optical network devices (Optical Network Unit, referred to as ONU) up to ten thousand.CPE belongs to
A kind of ONU, in actual applications, treatment effeciency, the public resource of SDN controllers are utilized, and may all be gone out in terms of bandwidth usage
Existing problem.
For the above mentioned problem in correlation technique, at present it is not yet found that the solution of effect.
The content of the invention
The embodiments of the invention provide the method, apparatus and system, OLT of a kind of SDN management controls, at least to solve correlation
SDN controller service treatment effeciencies in technology are low, the problem of waste bandwidth resource.
According to one embodiment of present invention, there is provided a kind of system of SDN management control, including：Software defined network
SDN controllers, for the optical network device ONU in administrative network and optical line terminal OLT to be controlled and/or managed；Generation
Node is managed, is connected between the SDN controllers and the ONU, for acting on behalf of the SDN controllers to described OLT and one
Or multiple ONU are managed and/or controlled.
Alternatively, being established between the agent node and the SDN controllers has management passage, wherein, the management is logical
Road is corresponding with management IP and/or port numbers.
Alternatively, the agent node passes through one of following agreement and the SDN controllers interactive information：OF-CONFIG、
OVSBD、Openflow、Netconf。
Alternatively, the agent node act on behalf of the SDN controllers one or more ONU are managed including：
The agent node acts on behalf of the SDN controllers and carries out one below operation to one or more ONU control information：Envelope
Dress, decapsulation, parsing, forwarding.
Alternatively, the agent node act on behalf of the SDN controllers one or more ONU are controlled including：
The agent node receives the inquiry for being used to inquire about the ONU Link States that the SDN controllers issue according to the period 1
Instruction；The agent node sends the query statement according to the period 1 to one or more ONU；Receive one
Or the link information that multiple ONU feed back according to the query statement, and judge whether the link information characterizes the ONU
Normally；Judge the link information characterize the ONU it is normal when, the link information is transmitted to according to second round described
SDN controllers, wherein, the second round is more than the period 1.
Alternatively, when judging that the link information sign ONU is abnormal, the link is believed according to the period 3
Breath is transmitted to the SDN controllers, wherein, the period 3 is less than or equal to the period 1.
Alternatively, the agent node act on behalf of the SDN controllers one or more ONU are controlled including：
The agent node receives the business forwarding message of the SDN controllers, wherein, the business forwarding message includes：Message is sent out
Source port, message is sent to receive destination interface；Judge whether include the destination interface in the administrative ONU set of the agent node
Source ONU corresponding to corresponding purpose ONU and/or the source port；Include in the administrative ONU set of the agent node described
During the purpose ONU and source ONU, the message forwarding between the source ONU and the purpose ONU is performed.
Alternatively, when not including the purpose ONU and source ONU in the administrative ONU set of the agent node, put
Abandon the processing business forwarding message.
Alternatively, after the completion of the message forwarding between performing the source ONU and purpose ONU, in addition to：By described in
The result of message forwarding reports the SDN controllers.
Alternatively, the agent node is arranged on the OLT, wherein, one or more ONU pass through the OLT
It is linked into the SDN controllers.
According to another embodiment of the invention, there is provided a kind of optical line terminal OLT, the OLT also include：Access mould
Block, it is connected with one or more ONU；Interface module, it is connected with SDN controllers；Agent node, be connected to the AM access module and
Between interface module, one or more ONU are managed and controlled for acting on behalf of the SDN controllers.
Alternatively, management passage is provided between the agent node and the SDN controllers, wherein, the management is logical
Road is corresponding with management IP and/or port numbers.
According to another embodiment of the invention, there is provided a kind of method of SDN management control, including：Agent node connects
Receive the control message for being used to be controlled ONU business that SDN controllers are sent；The agent node disappears according to the control
Cease and the business of the ONU is controlled；And/or agent node receives the request being used for SDN requested services that ONU is sent
Message；The agent node is handled the business of the ONU according to the request message.
Alternatively, the agent node business of the ONU is controlled according to the control message including：The generation
Manage node and one below operation is carried out to one or more ONU control information：Encapsulation, decapsulation, parsing, forwarding.
Alternatively, agent node receives the control message for being used to be controlled ONU business that SDN controllers are sent,
The agent node is controlled according to the control message to the business of the ONU, including：Described in the agent node receives
The query statement for being used to inquire about the ONU Link States that SDN controllers issue according to the period 1；The agent node according to
The period 1 sends the query statement to one or more ONU；One or more ONU are received according to
The link information of query statement feedback, and it is normal to judge whether the link information characterizes the ONU；Judging the link letter
Breath characterize the ONU it is normal when, the link information is transmitted to the SDN controllers according to second round, wherein, described the
Two cycles are more than the period 1.
Alternatively, agent node receives the control message for being used to be controlled ONU business that SDN controllers are sent,
The agent node is controlled according to the control message to the business of the ONU, including：The agent node receives institute
The business forwarding message of SDN controllers is stated, wherein, the business forwarding message includes：Message transmission source port, message receive mesh
Port；The agent node judge in administrative ONU set whether including purpose ONU corresponding to the destination interface and/or
Source ONU corresponding to the source port；Include the purpose ONU and source ONU in the administrative ONU set of the agent node
When, perform the message forwarding between the source ONU and the purpose ONU.
According to another embodiment of the invention, there is provided a kind of device of SDN management control, including：First processing mould
Block, for receiving the control message for being used to be controlled ONU business of SDN controllers transmission, and according to the control
Message is controlled to the business of the ONU；And/or Second processing module, for receive ONU transmission be used for SDN ask
The request message of business, and the business of the ONU is handled according to the request message
Pass through the present invention, software defined network SDN controllers, for the optical network device ONU and light in administrative network
Line terminal OLT is controlled and managed, and agent node, is connected between the SDN controllers and the ONU, is used for
Act on behalf of the SDN controllers OLT and one or more ONU are managed and controlled, due in SDN controllers and
Agent node is added between ONU, manages and controls interacting between SDN controllers and ONU by agent node, avoid
One-to-one control between SDN controllers and ONU, therefore can solve the SDN controller service treatment effeciencies in correlation technique
It is low, the problem of waste bandwidth resource, reach the control efficiency for improving whole SDN controllers, save bandwidth resources, improve resource profit
With the effect of rate.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, forms the part of the application, this hair
Bright schematic description and description is used to explain the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the schematic diagram that point-to-point mode manages CPE in correlation technique；
Fig. 2 is network architecture diagram according to embodiments of the present invention；
Fig. 3 is SDN management control system structure charts according to embodiments of the present invention；
Fig. 4 is OLT according to embodiments of the present invention structured flowchart；
Fig. 5 is OLT according to embodiments of the present invention alternative construction block diagram；
Fig. 6 is the schematic diagram for multiple ONU that OLT connections are directly managed according to the SDN controllers of correlation technique of the present invention；
Fig. 7 be according to embodiments of the present invention 3 SDN scenes under SDN controllers and access node functional frame composition；
Fig. 8 is that according to embodiments of the present invention 3 access node is GPON schematic diagram；
Fig. 9 is that according to embodiments of the present invention 3 access node is EPON schematic diagram；
Figure 10 is that according to embodiments of the present invention 3 access node manages multiple physics CPE schematic diagram as proxy；
Figure 11 is that according to embodiments of the present invention 3 access node acts on behalf of the interaction figure that SDN controllers are inquired about；
Figure 12 be according to embodiments of the present invention 3 Proxy proxy modules realize control plane Topology Discovery and forwarding illustrate
Figure.
Embodiment
Describe the present invention in detail below with reference to accompanying drawing and in conjunction with the embodiments.It should be noted that do not conflicting
In the case of, the feature in embodiment and embodiment in the application can be mutually combined.
It should be noted that term " first " in description and claims of this specification and above-mentioned accompanying drawing, "
Two " etc. be for distinguishing similar object, without for describing specific order or precedence.
Embodiment 1
The embodiment of the present application can be run in the network architecture shown in Fig. 2, and Fig. 2 is network according to embodiments of the present invention
Organization Chart, as shown in Fig. 2 the network architecture includes：Access network (OLT), SDN, ONU, wherein, access network is as SDN's and ONU
Go-between, wherein, access network can also include exchange chip, PON (EPON, passive optical
Network) MAC (medium access control), SDN can also include SDN controllers, Configuration Control Unit, lead between access network and SDN
Open flow or net conf network exchange models are crossed to interact.
A kind of system for the SDN management controls for running on the network architecture is provided in the present embodiment, and Fig. 3 is according to this hair
The system construction drawing of the SDN management controls of bright embodiment, as shown in figure 3, the system includes：
SDN controllers 30, for being controlled to the optical network device ONU in administrative network and optical line terminal OLT and
Management；
Agent node 32, it is connected between SDN controllers and ONU, for acting on behalf of SDN controllers to OLT and one or more
Individual ONU is managed and controlled.
Pass through the system of the present embodiment, software defined network SDN controllers, for the optical network device in administrative network
ONU and optical line terminal OLT are controlled and managed, and agent node, are connected between SDN controllers and ONU, for generation
Reason SDN controllers are managed and controlled to OLT and one or more ONU, due to being added between SDN controllers and ONU
Agent node, interacting between SDN controllers and ONU is managed and controls by agent node, avoid SDN controllers and
One-to-one control between ONU, therefore it is low to solve the SDN controller service treatment effeciencies in correlation technique, waste bandwidth
The problem of resource, reach the control efficiency for improving whole SDN controllers, save bandwidth resources, improve the effect of resource utilization.
Alternatively, above-mentioned agent node 32 can be arranged on proxy server, but not limited to this.
In the present embodiment, agent node can be arranged on OLT, wherein, one or more ONU are linked into by OLT
SDN controllers.
Being established in the optional embodiment according to the present embodiment, between agent node and SDN controllers has management passage,
Wherein, management passage is corresponding with management IP and/or port numbers.It is possible thereby to avoid establishing pipe between SDN controllers and each ONU
Passage is managed, so as to cause to manage resource (such as：Management ip address, port numbers) deficiency.Agent node and SDN controller interactive information
Agreement have a lot, be illustrated herein：OF-CONFIG、OVSBD、 Openflow、Netconf.
Agent node is responsible for the interaction of both sides between SDN controllers and ONU, and ONU is managed and controlled.Including more
Kind situation and scene, it is specifically described below：
Agent node act on behalf of SDN controllers one or more ONU are managed including：Agent node is to SDN controllers
One below operation is carried out to one or more ONU control information：Encapsulation, decapsulation, parsing, forwarding.
Agent node acts on behalf of SDN controllers and one or more ONU is controlled, and interaction flow includes：
S11, agent node receive the inquiry for being used to inquire about ONU Link States that SDN controllers issue according to the period 1
Instruction；
S12, agent node send query statement according to the period 1 to one or more ONU；
S13, receive the link information that one or more ONU feed back according to query statement, and judge link information whether table
It is normal to levy ONU；
S14, when judging that link information sign ONU is normal, link information is transmitted to SDN controls according to second round
Device, wherein, second round is more than the period 1.
Frequency is forwarded by reducing, then can greatly reduce the bandwidth of SDN controllers and lift treatment effeciency, while will not
Influence normal control of the SDN controllers to ONU.Above-mentioned embodiment can be completed between ONU and access node PON MAC
Certification registration process and after reporting SDN controller corresponding states, SDN controllers need each ONU of timed maintenance Link State,
So as to just need timing to inquire about ONU link information.
Optionally, as another branch, judge link information characterize ONU it is abnormal when, in addition to：S15, according to
Link information is transmitted to SDN controllers by the period 3, wherein, the period 3 is less than or equal to the period 1.Herein then can be with
Help SDN controllers to carry out fast reaction to ONU and effectively control.
In the optional implement scene according to the present embodiment, agent node acts on behalf of SDN controllers and one or more ONU is entered
Row control, interaction flow include：
S21, agent node receive the business forwarding message of SDN controllers, wherein, business forwarding message includes：Message is sent out
Source port, message is sent to receive destination interface；
S22, judge whether include purpose ONU and/or source corresponding to destination interface in the administrative ONU set of agent node
Source ONU corresponding to mouthful；
S23, when including purpose ONU and source ONU in the administrative ONU set of agent node, perform source ONU and purpose ONU
Between message forwarding.
Another as flow judges branch, does not include purpose ONU and source in the administrative ONU set of agent node
During ONU, in addition to：S24, abandon processing business forwarding message.
Optionally, after the completion of the forwarding of the message between S23 source ONU and purpose ONU is performed, method can also include：
S25, the result forwarded the packet report SDN controllers.
Through the above description of the embodiments, those skilled in the art can be understood that according to above-mentioned implementation
The method of example can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but a lot
In the case of the former be more preferably embodiment.Based on such understanding, technical scheme is substantially in other words to existing
The part that technology contributes can be embodied in the form of software product, and the computer software product is stored in a storage
In medium (such as ROM/RAM, magnetic disc, CD), including some instructions to cause a station terminal equipment (can be mobile phone, calculate
Machine, server, or network equipment etc.) method that performs each embodiment of the present invention.
A kind of method for the SDN management controls for running on the network architecture is additionally provided in the present embodiment, including：
S311, agent node receive the control message for being used to be controlled ONU business that SDN controllers are sent；
S321, the agent node are controlled according to the control message to the business of the ONU；
Or including：
S312, agent node receive the request message being used for SDN requested services that ONU is sent；
S322, the agent node are handled the business of the ONU according to the request message.
Optionally, the agent node business of the ONU is controlled according to the control message including：The generation
Manage node and one below operation is carried out to one or more ONU control information：Encapsulation, decapsulation, parsing, forwarding.
Optionally, agent node receives the control message for being used to be controlled ONU business that SDN controllers are sent,
The agent node is controlled according to the control message to the business of the ONU, including：
The agent node receives the SDN controllers and inquires about the ONU links shape according to being used for of issuing period 1
The query statement of state；
The agent node sends the query statement according to the period 1 to one or more ONU；
The link information that one or more ONU feed back according to the query statement is received, and judges the link letter
It is normal whether breath characterizes the ONU；
When judging that the link information sign ONU is normal, the link information is transmitted to according to second round
The SDN controllers, wherein, the second round is more than the period 1.
Optionally, agent node receives the control message for being used to be controlled ONU business that SDN controllers are sent,
The agent node is controlled according to the control message to the business of the ONU, including：
The agent node receives the business forwarding message of the SDN controllers, wherein, the business forwards message package
Include：Message transmission source port, message receive destination interface；
The agent node judge in administrative ONU set whether including purpose ONU corresponding to the destination interface and/or
Source ONU corresponding to the source port；
When including the purpose ONU and source ONU in the administrative ONU set of the agent node, the source is performed
Message forwarding between ONU and the purpose ONU.
A kind of device for the SDN management controls for running on the network architecture is provided in the present embodiment, corresponding to above-mentioned SDN
The method for managing control, including：First processing module, for receiving the business progress being used for ONU of SDN controllers transmission
The control message of control, and the business of the ONU is controlled according to the control message；And/or second processing mould
Block, for receiving the request message being used for SDN requested services of ONU transmissions, and according to the request message to the ONU
Business handled.
Embodiment 2
Additionally provide a kind of optical line terminal OLT in the present embodiment, the device be used for realize above-described embodiment and preferably
Embodiment, repeating no more for explanation was carried out.As used below, term " module " can realize predetermined function
The combination of software and/or hardware.Although device described by following examples is preferably realized with software, hardware, or
The realization of the combination of person's software and hardware is also what may and be contemplated.
The present embodiment additionally provides a kind of optical line terminal OLT, and Fig. 4 is OLT according to embodiments of the present invention structural frames
Figure, as shown in figure 4, OLT includes：
AM access module 40, it is connected with one or more ONU；
Interface module 42, it is connected with SDN controllers；
Proxy module 44, is connected between AM access module and interface module, for acting on behalf of SDN controllers to one or more
ONU is managed and controlled.
Fig. 5 is OLT according to embodiments of the present invention alternative construction block diagram, as shown in figure 5, OLT includes：Proxy module and
Management passage 50 is provided between SDN controllers, wherein, management passage is corresponding with management IP and/or port numbers.SDN is avoided to control
Management passage is established between device processed and each ONU, so as to cause to manage resource.
Embodiment 3
Present embodiments provide a kind of access system realizes framework and device.Access system is as SDN controllers
Agent (agency), monitor the interacting message between SDN controllers and access system.Realized for configuration management message and act on behalf of work(
After energy, after access system handles the message from ONU or SDN controllers, necessary message is only sent to SDN controls
Device and ONU processed, the treatment effeciency of SDN controllers is improved from configuration management aspect, save the bandwidth resources of SDN controllers.
In addition, after access system realizes proxy (proxy server) function, SDN controllers only need with access system it
Between establish management passage, avoid establishing management passage between SDN controllers and each ONU, so as to cause to manage resource (such as IP
The resources such as address, port numbers) deficiency.
In control plane, access system carries out discovering network topology by Proxy modules, and then carries out the control of Forwarding plane
System and message forwarding, can optimize to SDN controllers, lift treatment effeciency to a certain extent.
Illustrated below in conjunction with specific embodiment.It should be noted that in the case where not conflicting, in the application
Feature in embodiment and embodiment can be mutually combined.
Specific embodiment one, solve multiple terminals in the direct Management Access System of SDN controllers using this patent and manage resource
The problem of deficiency and efficiency are low.
Fig. 6 is the schematic diagram for multiple ONU that OLT connections are directly managed according to the SDN controllers of correlation technique of the present invention, such as
Shown in Fig. 6.Using in SDN scene, business Forwarding plane is only deposited in access node OLT, ONU note is completed in PON MAC
After volume certification, control and management to ONU are directly carried out by SDN controllers.Thus, each ONU is corresponded to, then needs SDN to control
A management passage is established between device and ONU processed, that is, needs a management ip address or port numbers.A usual OLT is direct
The ONU numbers of connection are up to thousands of.And the OLT of a SDN controllers connection can be with multiple.Thus, SDN controllers are directly controlled
For the ONU of tubulation reason up to ten thousand meters, that is, the management resource needed, such as IP address are very more.With the increase of user, may meet
Face the situation of management ip address deficiency.
Fig. 7 be according to embodiments of the present invention 3 SDN scenes under SDN controllers and access node functional frame composition, such as Fig. 7
It is shown, and the framework of the access node shown in Fig. 2 is used, proxys (agency) of the OLT as SDN controller managements ONU, one
SDN controllers only need and connected to establish management passage between multiple ONU OLT, i.e., only need a management for an OLT
IP or port numbers, the utilization of management ip address is greatly saved.
Fig. 8 is that according to embodiments of the present invention 3 access node is GPON (Gigabit-Capable PON) schematic diagram,
As shown in figure 8, OLT typically supports the PON interfaces of the types such as GPON/10GPON/NG-PON2, for the ONU of these species, OLT
Management be by physical layer PLOAM/ONU management with control interface (ONU Management and Control
Interface, referred to as OMCI) be managed；Fig. 9 is that according to embodiments of the present invention 3 access node is EPON
The schematic diagram of (Ethernet PON), as shown in figure 9, when supporting the interfaces such as EPON/10GEPON for OLT, OLT passes through OAM
(Operation Administration and Maintenance)/extension OAM is managed.In OLT as SDN controllers
When managing ONU proxy (agency), OLT is typically established by agreements such as OF-CONFIG/OVSBD/Openflow or Netconf
With the management passage of SDN controllers, control information is acted on behalf of by OLT between SDN controllers and ONU.
Management for ONU, configuration OLT complete control information encapsulation, the deblocking of ONU and SDN controllers as Proxy
Dress, parsing and forwarding, OLT use an IP address, and ONUs of the OLT to receiving control information is packaged, such as
OMCI message is put into a management data frame based on OF-CONFIG/OPENflow or Netconf agreements, wherein encapsulation header
Including IP address, and for identifying ONU mark, such as the port numbers of ONU-ID or IP address, connected under an OLT
For ONU after reaching the standard grade, information, the OLT such as the registration of transmission, certification are sent to SDN controllers after relevant information is encapsulated.SDN is controlled
Device also carries out corresponding encapsulation for the control information of the ONU, and OLT is decapsulated after receiving, and is sent to after analyzing
Corresponding ONU.
Figure 10 is that according to embodiments of the present invention 3 access node manages multiple physics CPE schematic diagram as proxy, such as
Shown in Figure 10, and use the architecture and method of the present embodiment.Proxy modules in access node serve as SDN controllers control and
Manage CPE agency.By the multiple CPE of access node indirect control, and SDN controllers between access node then by establishing two
Layer passage, only reach management by a vCPE module and control multiple physics CPE purpose, simply, efficiently save simultaneously
Manage resource.And the type between access node and each CPE depending on CPE establishes IP management passages, or other kinds of management
Passage.
Specific embodiment two, the method provided using this patent save SDN controller bandwidth, lift treatment effeciency；
After certification registration process is completed between ONU and access node PON MAC and reports SDN controller corresponding states,
SDN controllers need each ONU of timed maintenance Link State, so as to just need timing to inquire about ONU link information.And
OLT PON MAC layers need periodically inquiry ONU Link State, and ONU also can regularly report its relevant information.If do not pass through
OLT proxy module, ONU report its link information every time, OLT all can real-time report give SDN controllers.If report frequency compared with
Height, then the bandwidth of SDN controls can be wasted, reduce the treatment effeciency of SDN controllers.
Figure 11 is that according to embodiments of the present invention 3 access node acts on behalf of the interaction figure that SDN controllers are inquired about, such as Figure 11
It is shown, if the related status information that OLT is reported by its management configuration proxy module interception ONU, reduction report frequency, then can
Greatly reduce the bandwidth of SDN controllers and lift treatment effeciency
Specific implementation step is as shown in figure 11, including：
S1001:The timing of SDN controllers issues the order of inquiry ONU Link States (every 5 seconds)；
S1002:OLT obtains relevant inquiring order, while every 5 seconds Link States for inquiring about each ONU；
S1003:ONU reported its link information of OLT every 5 seconds, and OLT management configurations proxy module is upper according to each ONU's
Breath of notifying is handled, if link state is normal, selection reported its ONU connected chain every 10 seconds or 15 seconds
Line state information.
Specific embodiment three, access node OLT proxy agent functionalitys realize Topology Discovery and then completion in control plane
The forwarding capability of access system internal node
Figure 12 be according to embodiments of the present invention 3 Proxy proxy modules realize control plane Topology Discovery and forwarding illustrate
Figure, as shown in figure 12, the proxy modules of access node as shown in figure 12 receive the related service forwarding from SDN controllers
Message, including message transmission source port and destination interface.The proxy modules of access node carry out internal according to associated control message
Addressing, if it find that source port and destination interface belong to the access node, then proxy modules complete source port and destination interface
Between message forwarding, and forwarding result is reported SDN controllers；If the result of proxy module address find source port and
Destination interface is simultaneously not belonging to or not while belongs to the access node, then without any processing to the message.
The method provided by the present embodiment, by being established between proxy module and SDN controllers in access node (OLT)
Management passage, the management resource of SDN controllers is saved；Meanwhile monitor SDN in configuration management aspect, OLT proxy module
Interacting message between controller and OLT, and related news are handled, avoid SDN controllers and ONU or other types
CPE between point-to-point management mode the wasting of resources.To form point-to-point and OLT and ONU between SDN controllers and OLT
Or point-to-multipoint management mode between other types CPE, the management function of SDN controllers is simplified, greatlys save SDN
Controller safeguards the process resource of renewal ONU or other types CPE relevant informations, saves the bandwidth of SDN controllers, lifting
Treatment effeciency.In control plane, access system carries out discovering network topology by Proxy modules, and then carries out Forwarding plane
Control and message forwarding, can optimize to SDN controllers, lift treatment effeciency to a certain extent.
Alternatively, the specific example in the present embodiment may be referred to described in above-described embodiment and optional embodiment
Example, the present embodiment will not be repeated here.
Obviously, those skilled in the art should be understood that above-mentioned each module of the invention or each step can be with general
Computing device realize that they can be concentrated on single computing device, or be distributed in multiple computing devices and formed
Network on, alternatively, they can be realized with the program code that computing device can perform, it is thus possible to they are stored
Performed in the storage device by computing device, and in some cases, can be with different from shown in order execution herein
The step of going out or describing, they are either fabricated to each integrated circuit modules respectively or by multiple modules in them or
Step is fabricated to single integrated circuit module to realize.So, the present invention is not restricted to any specific hardware and software combination.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (17)
- A kind of 1. system of SDN management control, it is characterised in that including：Software defined network SDN controllers, for the optical network device ONU in administrative network and optical line terminal OLT progress Control and/or management；Agent node, it is connected between the SDN controllers and the ONU, for acting on behalf of the SDN controllers to the OLT It is managed and/or controls with one or more ONU.
- 2. system according to claim 1, it is characterised in that established between the agent node and the SDN controllers There is management passage, wherein, the management passage is corresponding with management IP and/or port numbers.
- 3. system according to claim 1, it is characterised in that the agent node by one of following agreement with it is described SDN controller interactive information：OF-CONFIG、OVSBD、Openflow、Netconf.
- 4. system according to claim 1, it is characterised in that the agent node acts on behalf of the SDN controllers to one Or multiple ONU be managed including：The agent node acts on behalf of the SDN controllers and carries out one below behaviour to one or more ONU control information Make：Encapsulation, decapsulation, parsing, forwarding.
- 5. system according to claim 1, it is characterised in that the agent node acts on behalf of the SDN controllers to one Or multiple ONU be controlled including：The agent node receives the SDN controllers and inquires about the ONU Link States according to being used for of issuing period 1 Query statement；The agent node sends the query statement according to the period 1 to one or more ONU；The link information that one or more ONU feed back according to the query statement is received, and judges that the link information is The no sign ONU is normal；Judge the link information characterize the ONU it is normal when, the link information is transmitted to according to second round described SDN controllers, wherein, the second round is more than the period 1.
- 6. system according to claim 5, it is characterised in that judging that it is abnormal that the link information characterizes the ONU When, the link information is transmitted to the SDN controllers according to the period 3, wherein, the period 3 is less than or equal to The period 1.
- 7. system according to claim 1, it is characterised in that the agent node acts on behalf of the SDN controllers to one Or multiple ONU be controlled including：The agent node receives the business forwarding message of the SDN controllers, wherein, the business forwarding message includes：Report Literary transmission source port, message receive destination interface；Whether judge in the administrative ONU set of the agent node including purpose ONU corresponding to the destination interface and/or described Source ONU corresponding to source port；The agent node it is administrative ONU set in include the purpose ONU and source ONU when, perform the source ONU with Message forwarding between the purpose ONU.
- 8. system according to claim 7, it is characterised in that do not include in the administrative ONU set of the agent node During the purpose ONU and source ONU, abandon handling the business forwarding message.
- 9. system according to claim 7, it is characterised in that the report between the source ONU and purpose ONU is performed After the completion of text forwarding, in addition to：The result that the message forwards is reported into the SDN controllers.
- 10. according to the system described in claim 1 to 9 any one, it is characterised in that the agent node is arranged on described On OLT, wherein, one or more ONU are linked into the SDN controllers by the OLT.
- 11. a kind of optical line terminal OLT, it is characterised in that the OLT also includes：AM access module, it is connected with one or more ONU；Interface module, it is connected with SDN controllers；Agent node, it is connected between the AM access module and interface module, for acting on behalf of the SDN controllers to one or more The individual ONU is managed and controlled.
- 12. OLT according to claim 11, it is characterised in that set between the agent node and the SDN controllers There is management passage, wherein, the management passage is corresponding with management IP and/or port numbers.
- A kind of 13. method of SDN management control, it is characterised in that including：Agent node receives the control message for being used to be controlled ONU business that SDN controllers are sent；The agent node The business of the ONU is controlled according to the control message；And/orAgent node receives the request message being used for SDN requested services that ONU is sent；The agent node is according to the request Message is handled the business of the ONU.
- 14. according to the method for claim 13, it is characterised in that the agent node is according to the control message to described ONU business be controlled including：The agent node carries out one below behaviour to one or more ONU control information Make：Encapsulation, decapsulation, parsing, forwarding.
- 15. according to the method for claim 13, it is characterised in that what agent node received that SDN controllers send be used for pair The control message that ONU business is controlled, the agent node are controlled according to the control message to the business of the ONU System, including：The agent node receives the SDN controllers and inquires about the ONU Link States according to being used for of issuing period 1 Query statement；The agent node sends the query statement according to the period 1 to one or more ONU；The link information that one or more ONU feed back according to the query statement is received, and judges that the link information is The no sign ONU is normal；Judge the link information characterize the ONU it is normal when, the link information is transmitted to according to second round described SDN controllers, wherein, the second round is more than the period 1.
- 16. according to the method for claim 13, it is characterised in that what agent node received that SDN controllers send be used for pair The control message that ONU business is controlled, the agent node are controlled according to the control message to the business of the ONU System, including：The agent node receives the business forwarding message of the SDN controllers, wherein, the business forwarding message includes：Report Literary transmission source port, message receive destination interface；Whether the agent node is judged in administrative ONU set including purpose ONU corresponding to the destination interface and/or described Source ONU corresponding to source port；The agent node it is administrative ONU set in include the purpose ONU and source ONU when, perform the source ONU with Message forwarding between the purpose ONU.
- A kind of 17. device of SDN management control, it is characterised in that including：First processing module, for receiving the control message for being used to be controlled ONU business of SDN controllers transmission, with And the business of the ONU is controlled according to the control message；And/orSecond processing module, asked for receiving the request message being used for SDN requested services of ONU transmissions, and according to described Message is asked to handle the business of the ONU.
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| CN201610303518.1A CN107360105B (en) | 2016-05-10 | 2016-05-10 | SDN management control method, device and system and OLT |
| PCT/CN2017/082036 WO2017193815A1 (en) | 2016-05-10 | 2017-04-26 | Sdn management control method, device and system, and olt |
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| CN108282710A (en) * | 2018-02-23 | 2018-07-13 | 烽火通信科技股份有限公司 | A kind of system and method automatically processing alarm |
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| WO2023011203A1 (en) * | 2021-08-05 | 2023-02-09 | 中国移动通信有限公司研究院 | Method for management and control of optical network unit, apparatus, device of related function, and storage medium |
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| WO2017193815A1 (en) | 2017-11-16 |
| CN107360105B (en) | 2021-07-27 |
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