CN109428751A - A kind of method and device of SDN management network access equipment - Google Patents
A kind of method and device of SDN management network access equipment Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/085—Retrieval of network configuration; Tracking network configuration history
- H04L41/0853—Retrieval of network configuration; Tracking network configuration history by actively collecting configuration information or by backing up configuration information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/20—Network management software packages
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0889—Techniques to speed-up the configuration process
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0895—Configuration of virtualised networks or elements, e.g. virtualised network function or OpenFlow elements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0896—Bandwidth or capacity management, i.e. automatically increasing or decreasing capacities
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/12—Discovery or management of network topologies
- H04L41/122—Discovery or management of network topologies of virtualised topologies, e.g. software-defined networks [SDN] or network function virtualisation [NFV]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/40—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks using virtualisation of network functions or resources, e.g. SDN or NFV entities
Abstract
The invention discloses a kind of method and devices of SDN management network access equipment, are related to the field SDN, which comprises SDN controller obtains the information for the client device that Automatic Configuration Server reports；The information for the client device that the SDN controller is reported according to the Automatic Configuration Server, establishes the mapping relations of the Automatic Configuration Server and the client device；The SDN controller is managed the client device according to the mapping relations of the Automatic Configuration Server and the client device.The embodiment of the present invention is compared with the technology applied on existing telecommunication network, using the mode of TR-069 combination SDN, solves the problems, such as that network access equipment expansion causes configuration to complicate and decentralized, reduces the cost of operator；Simultaneously because defining a set of benchmark service model, the management to newly added equipment and devices from different manufacturers is greatlied simplify.
Description
Technical field
The present invention relates to the fields software defined network (Software Defined Network, SDN), in particular to a kind of
The method and device of SDN management network access equipment.
Background technique
The equipment of the network of home environment access at this stage increases increasingly, and the development of Internet of Things is also increasingly rapid, the network equipment
Growth the management of existing net equipment, the ability to bear of network size and bandwidth pressure are also gradually showed.The popularity of equipment
And the problem of paying close attention to is needed, traditional network equipment includes router, interchanger etc., emerging wearable device, intelligent family
Residence, cloud storage etc. are required to continual management and support, and the complexity of network insertion urgently needs one kind that can manage concentratedly
The network equipment is easier to the technology of extension and flexible organization.
Traditional network management scheme uses Simple Network Management Protocol (Simple Network Management
Protocol, SNMP), it is formulated by Internet activity board (IAB), is that internet (Internet) tissue is used to manage transmission
Control protocol/Internet Protocol (Transmission Control Protocol/Internet Protocol, TCP/
IP) the Network Management Protocol of internet and Ethernet, it is initially that can provide facing for the smallest Network Management Function as a kind of
Shi Fangfa exploitation.The structure of management information (SMI) and management information bank (MIB) that SNMP is used provide one group of monitoring network element
The minimum but powerful tool of element.Its structure very simple, can quickly and easily realize, thus SNMP is in network pipe
Reason field has obtained extensive receiving, has become actual international standard.But the characteristic of snmp protocol is not particularly suited for
The numerous access device of management on large:
1, each manufacturer terminal can customized some Proprietary MIBs, when newly accessing a kind of equipment network management side need again plus
The MIB table is carried, and when the update of MIB table, network management side needs synchronized update.
2, snmp protocol is initially for design of local area network, so the filtering of external SNMP message needs network management area to distribute
It sets.The authentication of SNMPv1 and SNMPv2 lacks certain safety simultaneously, and although SNMPv3 enhances safety, still
It is had a greatly reduced quality using the equipment of v3.
3, network management (Network Management System, NMS) and client device (Customer Premise
Equipment, CPE) between need repeatedly interaction to obtain real-time status, CPE is made by sending TRAP message report and alarm, NMS
Information is persistently obtained with GET or GET-NEXT message, massive band width can be expended when CPE is excessive.
With technological service (Voice over Internet Protocol, VoIP), the friendship by IP network transmission speech
More and more IP terminal devices such as mutual formula Web TV (Internet Protocol Television, IPTV) are popularized, especially
Its home network is popularized, and the configuration and maintenance of large number of equipment become more and more difficult, substantially increase networking products operator
Cost, traditional network management system based on SNMP face numerous terminal devices when seem unable to do what one wishes, limit broadband and connect
Enter the development speed and scale in market.TR069 defines a set of completely new network management system structure, including " administrative model ", " interaction
Interface ", " management parameters ", the fortune for largely reducing networking products is cost.
TR069 is the terminaloriented that Digital Subscriber Line (DSL) forum (being renamed as Broadband Forum) formulates
The network management protocol of equipment, referred to as " subscriber terminal equipment wide area network management agreement (CWMP) ", the document code of DSL forum is
TR069.TR-069 has fully considered the above-mentioned status of SNMP in design, defines standard set business data model, from
The incompatible problem of the privately owned model of each manufacturer avoided in root, and widely used hypertext in WEB service is utilized and passes
Defeated agreement (HyperText Transfer Protocol, HTTP) agreement as communications carrier, passes through Automatic Configuration Server
The mode that (Auto-Configuration Server, ACS) and CPE can initiate link setup establishes two-way interactive.
Fig. 1 is the relational graph in TR-069 scene between ACS and CPE, as shown in Figure 1, ACS is responsible for being managed CPE.
Interface between ACS and CPE is southbound interface (ACS Southbound Interface), and the interface between ACS and management system is
Northbound interface (ACS Northbound Interface).TR069 agreement main definitions southbound interface.Long-range mistake is used simultaneously
Journey call (Remote Procedure Call, RPC) mode very easily user equipment is upgraded, is configured, is monitored,
Diagnosis etc., greatly reduces maintenance cost.
Fig. 2 is the component part figure of CWMP protocol stack, as shown in Fig. 2, TR069 agreement is based on TCP layer, between ACS and CPE
Message transmission uses HTTP1.1, and ACS is server-side, and CPE is client；The particular content of message is assisted using simple object access
View (Simple Object Access Protocol, SOAP) packet is packaged, and SOAP packet is one and includes SOAP Head
(SOAP) and SOAP Body (SOAP body) composition extensible markup language (Extensible Markup Language,
XML) document.The management method of ACS is exactly to carry out far call to CPE, it is therefore desirable to transmit the method and ginseng to be called to CPE
Number, these contents are included in SOAP body.
Meanwhile TR-069 also supports Secure Socket Layer/secure transport layers (Secure Socket Layer, SSL/TLS) to assist
View, ACS carry out interacting message in such a way that HTTPS is encrypted between CPE, enhance the safety of the two communication.
TR-069 solves the problems, such as large scale deployment, supervision and the maintenance network equipment, if bearer network node goes out
There is network congestion in existing failure or certain paths, generally require network management system by alarm awareness network situation, then by hand
Intervene certain node or path, rather than what TR-069 can solve.
Traditional network is disposed, it is most of to use typical distributed structure/architecture, with the side of hop-by-hop between equipment and equipment
Formula interacts local information, then establishes database information, carries out optimal route selection further according to Routing Algorithm.But with network flow
Amount constantly expansion, so that the volume of bottom-layer network also constantly expands, it is longer that the variation in path also results in convergence.
And flow control generally uses service quality/traffic engineering (Quality of Service/Traffic
Engineering, QoS/TE) etc. agreements realize that but traditional flow control mode mainly uses static bandwidth processing, according to
Business demand specifies corresponding rule, so general strategy is that static configuration is good, can not realize that bandwidth is dynamic according to network condition
State distribution etc.., burst flow countermeasure insufficient situations such as low for special line bandwidth availability ratio, is difficult to cope with, for key business
Situations such as delay, cutout certainly will occur with application program, this is for requiring network quality for higher and higher user obviously
It is unacceptable.This just objectively need one kind can global bandwidth visualization, be capable of the forwarding strategy of self-defining device
Scheme is come such issues that solve.
Summary of the invention
A kind of method and device of SDN management network access equipment provided in an embodiment of the present invention, at least solution network connect
Enter configuration caused by equipment expansion to complicate and decentralized problem.
A kind of method of SDN management network access equipment provided according to embodiments of the present invention, comprising:
SDN controller obtains the information for the client device that Automatic Configuration Server reports；
The information for the client device that the SDN controller is reported according to the Automatic Configuration Server, establishes institute
State the mapping relations of Automatic Configuration Server and the client device；
The SDN controller is according to the mapping relations of the Automatic Configuration Server and the client device, to described
Client device is managed.
Preferably, the SDN controller obtains the information for the client device that Automatic Configuration Server reports and includes:
After the client device completes registration to the Automatic Configuration Server, the SDN controller is from the business
Configuration manager obtains the information for the registered client device that the Automatic Configuration Server reports.
Preferably, the SDN controller is according to the mapping relations of the Automatic Configuration Server and the client device,
The client device is managed and includes:
The SDN controller is according to the mapping relations of the Automatic Configuration Server and the client device, via institute
It states business configuration manager and the information for being used to manage the client device is sent to the corresponding Automatic Configuration Server,
So that the information is issued to the client device by the Automatic Configuration Server.
Preferably, described for manage the information of the client device to be path configuration information, confidence is matched in the path
Breath is obtained by following steps:
The SDN controller is according to yet to be built or to be updated from the Automatic Configuration Server to the client device
Path determines the position of the Automatic Configuration Server and the client device in network topology；
According to the position of the Automatic Configuration Server and the client device in network topology, find with it is described to
It builds or to be updated from the Automatic Configuration Server to the relevant network topology in the path of the client device and Netowrk tape
Wide information；
According to the relevant network topology and network bandwidth information, routing processing is carried out, and according to processing result, is generated
Path configuration information.
Preferably, the network bandwidth information includes reserved bandwidth information and has used bandwidth information, and the SDN controller exists
Establish after the mapping relations of the Automatic Configuration Server and the client device obtained from Area Border Router it is described
Network topology and the reserved bandwidth information obtain from path-calculating element and described have used bandwidth information.
A kind of device of SDN management network access equipment provided according to embodiments of the present invention, comprising:
Data obtaining module, for obtaining the information for the client device that Automatic Configuration Server reports；
Mapping block, the information of the client device for being reported according to the Automatic Configuration Server, establishes institute
State the mapping relations of Automatic Configuration Server and the client device；
Processing module, for the mapping relations according to the Automatic Configuration Server and the client device, to described
Client device is managed.
Preferably, after the client device completes registration to the Automatic Configuration Server, the data obtaining module
The information for the registered client device that the Automatic Configuration Server reports is obtained from the business configuration manager.
Preferably, the processing module is according to the mapping relations of the Automatic Configuration Server and the client device,
The information for being used to manage the client device is sent to corresponding described automatically configure via the business configuration manager
Server, so that the information is issued to the client device by the Automatic Configuration Server.
Preferably, described for manage the information of the client device to be path configuration information, the processing module root
According to yet to be built or to be updated from the Automatic Configuration Server to the path of the client device, determine described in automatically configure clothes
The position of business device and the client device in network topology, according to the Automatic Configuration Server and the client device
Position in network topology, find with it is described yet to be built or to be updated set from the Automatic Configuration Server to the client
The relevant network topology in standby path and network bandwidth information, and according to the relevant network topology and network bandwidth information,
Routing processing is carried out, and according to processing result, generates path configuration information.
Preferably, the network bandwidth information includes reserved bandwidth information and has used bandwidth information, described automatic establishing
After configuration server and the mapping relations of the client device, the data obtaining module is also used to route from zone boundary
Device obtains the network topology and the reserved bandwidth information, obtains from path-calculating element and described has used bandwidth information.
Technical solution provided in an embodiment of the present invention has the following beneficial effects:
1. the embodiment of the present invention is compared with the technology applied on existing telecommunication network, using the mode of TR-069 combination SDN,
Solve the problems, such as network access equipment expansion cause configuration complicate and it is decentralized, reduce the cost of operator；While by
In defining a set of benchmark service model, the management to newly added equipment and devices from different manufacturers is greatlied simplify.
2. the embodiment of the present invention utilize SDN advantage, network O&M personnel can as software programming Configuration network, and
A large amount of network equipments that the mode of manual intervention goes configuration to disperse are not relied on, simultaneously as the concentration intelligence of SDN Controller
It can manage, network behavior can be changed in real time, deployment new network application and service in the short time can in a few houres or several days
It completes, rather than present even some months in several weeks.
3. the embodiment of the present invention puts together network state in control layer so that network operation rely on it is dynamic auto soft
Part program, so that it may flexible configuration, management, deployment secure strategy and optimization Internet resources.
Detailed description of the invention
Fig. 1 is the relational graph in TR-069 scene between ACS and CPE；
Fig. 2 is the component part figure of CWMP protocol stack；
Fig. 3 is the method flow diagram of SDN management network access equipment；
Fig. 4 is the device block diagram of SDN management network access equipment；
Fig. 5 is the networking scene that SDN Controller applies each component at broadband networks (Broadband network)
Figure；
Multiprotocol label switching when Fig. 6 is a lack of enough bandwidth (Multi-Protocol Label Switching,
MPLS) TE creates the topological diagram of tunnel failure；
Fig. 7 is that SDN Controller passage path computing unit (Path Computation Element, PCE) calculates road
After adjust original tunnel, it is ensured that the topological diagram that tunnel is successfully established；
Fig. 8 is two tunnel paths of simulation, and wherein a tunnel bandwidth increases, and leads to the topological diagram of flow congestion；
Fig. 9 is two tunnel paths of simulation, and enough topological diagrams of bandwidth；
Figure 10 is the typical interaction diagrams of ACS and CPE；
Figure 11 is the interaction diagrams of terminal device and gateway and ACS under gateway scene；
Figure 12 is the interaction diagrams of Service Configuration Manager and SDN Controller and ACS.
Specific embodiment
Below in conjunction with attached drawing to a preferred embodiment of the present invention will be described in detail, it should be understood that described below is excellent
Select embodiment only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
Fig. 3 is the method flow diagram of SDN management network access equipment, as shown in figure 3, step includes:
Step S1:SDN controller (SDN Controller) obtains the information for the CPE that ACS is reported.
After the CPE completes registration to the ACS, the SDN controller is from Service Configuration
Manager obtains the information for the registered CPE that the ACS is reported.Wherein, the CPE includes gateway and terminal device.
Further, described in the SDN controller can also be obtained from Service Configuration Manager
The information for the server that ACS is relied on, the server can be the server used when version management.
Step S2:SDN controller establishes the ACS's and CPE according to the information of the ACS CPE reported
Mapping relations.
Step S3:SDN controller is managed the CPE according to the mapping relations of the ACS and the CPE.
The SDN controller is according to the mapping relations of the ACS and the CPE, via the Service
The information for being used to manage the CPE is sent to the corresponding ACS by Configuration Manager, so that the ACS will
The information is issued to the CPE.
It is described for manage the information of the CPE to be path configuration information, the path configuration information passes through following steps
Obtain: the SDN controller determines the ACS and institute according to yet to be built or to be updated from the ACS to the path of the CPE
State position of the CPE in network topology；According to the position of the ACS and the CPE in network topology, find with it is described yet to be built
Or it is to be updated from the ACS to the relevant network topology in the path of the CPE and network bandwidth information；According to described relevant
Network topology and network bandwidth information carry out routing processing, and according to processing result, generate path configuration information.
Wherein, the relevant network topology refers to link relevant to path yet to be built or to be updated, including need to adjust
Path.
Wherein, the network bandwidth information include link relevant to path yet to be built or to be updated reserved bandwidth information and
Bandwidth information is used.
Wherein, the SDN controller is in the mapping relations for establishing the Automatic Configuration Server and the client device
The network topology and the reserved bandwidth information are obtained from Area Border Router later, is obtained from PCE and described has used bandwidth
Information.
Wherein, the notice that the SDN controller is sent according to Service Configuration Manager, determine to
It builds or to be updated from the ACS to the path of the CPE.It include the bandwidth in the path if new route yet to be built, in notice,
If necessary to update existing path, then include the bandwidth after the existing routing update in notice.
It will appreciated by the skilled person that implement the method for the above embodiments be can be with
Relevant hardware is instructed to complete by program, the program can store in computer-readable storage medium, should
Program when being executed, including step S1 to step S3.Furtherly, the present invention can also provide a kind of storage medium, deposit thereon
Computer program is contained, is at least performed the steps of when which is executed by processor and obtains what Automatic Configuration Server reported
The information of client device；According to the information for the client device that the Automatic Configuration Server reports, foundation is described certainly
The mapping relations of dynamic configuration server and the client device；According to the Automatic Configuration Server and the client device
Mapping relations, the client device is managed.Wherein, the storage medium may include ROM/RAM, magnetic disk,
CD, USB flash disk.
Fig. 4 is the device block diagram of SDN management network access equipment, as shown in Figure 4, comprising:
Data obtaining module, for obtaining the information for the CPE that ACS is reported；
Mapping block, the information of the CPE for being reported according to the ACS establish reflecting for the ACS and CPE
Penetrate relationship；
Processing module is managed the CPE for the mapping relations according to the ACS and the CPE.
The course of work of described device includes: CPE complete registration to ACS after, the data obtaining module is from the business
Configuration manager obtains the information for the registered CPE that the ACS is reported, and mapping block establishes the ACS and the CPE
Mapping relations, processing module will use according to the mapping relations of the ACS and the CPE via the business configuration manager
It is sent to the corresponding ACS in the information for managing the CPE, so that the information is issued to the CPE by the ACS.
Wherein, described for manage the information of the CPE to be path configuration information.
When needing to create or update from the ACS to the path of the CPE, the processing module is according to yet to be built or to more
New path determines the position of the ACS and the CPE in network topology, is opened up according to the ACS and the CPE in network
Position in flutterring, find to it is described yet to be built or to be updated from the ACS to the relevant network topology in the path of the CPE and net
Network bandwidth information, and according to the relevant network topology and network bandwidth information, routing processing is carried out, and tie according to processing
Fruit generates path configuration information.
Wherein, the network bandwidth information includes reserved bandwidth information and has used bandwidth information, and the SDN controller is being built
The mapping relations for founding the ACS and CPE obtain the network topology and the reserved band from Area Border Router later
Wide information obtains from PCE and described has used bandwidth information.
Further, described device can be set on SDN controller.
The embodiment of the present invention proposes to combine TR-069 network management in a manner of SDN for status and the growth trend in future
Agreement manages existing network, in conjunction with the strong point of each agreement, solves the problems, such as existing network.
Fig. 5 is the networking scene that SDN Controller applies each component at broadband networks (Broadband network)
Figure, as shown in Figure 5, it is shown that the relationship between each group part, specific as follows:
With CWMP on-premise network access device, ACS and cpe side are interconnected, and constitute Broadband Network.
The side business configuration manager (Service Configuration Manager) passes through northbound interface
(Northbound Interface, NBI) is interacted with ACS, for managing cpe device, and is provided and is allocated to ACS, or real from ACS
Shi Gengxin CPE information etc..
SDN Controller is located at the side Service Configuration Manager, for managing Broadband
The network equipment in Network, gateway, interchanger, router etc. calculate road, Bandwidth adjustment, network congestion control etc. for PCE.
CPE is established the link by the pre-configuration inside equipment with ACS, its each attribute, example are reported in the form of Inform
Such as manufacturer's attribute, hardware version numbers, software version number, equipment state, starting time, WAN connection attribute etc., CPE can be net
Equipment is closed, terminal device is also possible to.
Service Configuration Manager by Northbound interface by business information inform to
ACS, and the configuration to cpe side is completed using TR-069, wherein business information can be the configuration informations such as account, password, can also
To be version management information, other information can also be.
Gateway side continues to complete the initialization of the side Subscriber, and gateway passes through dynamic host configuration protocol (Dynamic
Host Configuration Protocol, DHCP) notify internal unit, internal unit to pass through STUN the address of ACS
The mode of (the UDP simple traversal of NAT) is established and the port mapping of ACS (the i.e. gateway ACS that distributes to internal unit on gateway
Mapping relations between port and the address of internal unit), ACS passes through the address administration internal unit after mapping.
ACS reports inform information to Service Configuration Manager, establishes in SDN Controller
Mapping relations between ACS and CPE gateway and terminal device, and net is searched according to the port address of ACS and CPE gateway
Network topology, establishes its mapping relations between tunnel.
BGP-LS agreement is run between SDN Controller and existing network router, router passes through Interior Gateway Protocol
(Interior Gateway Protocol, IGP) collects network topology and bandwidth situation and is reported to SDN by BGP-LS
Controller, each domain only need 1~2 router as Area Border Router (Area Border Router, ABR) with
SDN Controller establishes neighborhood, solves the pressure of system expansion.
When the business processing of ACS to CPE in Broadband Network, which is related to certain paths, to be needed to adjust, SDN
Controller determines node end to end according to the port address of ACS and CPE, carries out routing according to the information that ABR and PCE is transmitted,
Passage path computation element protocol (Path Computation Element Protocol, PCEP) is issued to router execution.
In this way, the path computing of centralization avoids the unreasonable situation of bandwidth usage under distribution.
After SDN Controller concentrates calculation road, notice Service Configuration Manager adjustment knot
Fruit notifies ACS is issued to be configured to by Service Configuration Manager by Northbound Interface
CPE。
MPLS TE creates the topological diagram of tunnel failure when Fig. 6 is a lack of enough bandwidth, as shown in fig. 6, since CPE is accessed
The increase of business, R1 → R5 need to create a tunnel, according to traditional MPLS TE mode, due to lacking enough bandwidth,
The tunnel creation of R1 → R5 fails.For example, R1 to the R5 one yet to be built bandwidth by R3 is the tunnel of 8G, due to chain between R3 and R5
It is 10G that bandwidth is reserved on road, is being 2G+2G with tunnel bandwidth, therefore available bandwidth is 6G, less than the bandwidth needed to built tunnel
8G, therefore the tunnel creation failure of R1 → R5.
Fig. 7 is to adjust original tunnel after SDN Controller calculates road by PCE, it is ensured that the topology that tunnel is successfully established
Figure possesses the whole network information as shown in fig. 7, due to the centralized path computation of SDN Controller, it is adjustable other with
Tunnel path creates conditions for the business of R1 → R5.For example, will with tunnel path R2 → R3 → R5 be adjusted to R2 → R4 →
R5, available bandwidth is 8G between R3 and R5 at this time, meets creation condition, the tunnel creation success of R1 → R5.
Fig. 8 is two tunnel paths of simulation, and wherein a tunnel bandwidth increases, and leads to the topological diagram of flow congestion, such as
Shown in Fig. 8, each LSP priority is all the same, and there are two data links, R1 → R3 → R5 → R4 (2G) and R2 → R3 → R5 → R4
The reserved bandwidth of (2G), R3 → R5 and R5 → R4 are 5G, then the bandwidth availability ratio of R3 → R5 and R5 → R4 is 80% (i.e.
(2G+2G)/5G).Assuming that R1 → R3 → R5 → R4 data volume increases to 5G, MPLS TE mode can not be certainly when flow increases
Congestion, the bandwidth availability ratio general of R3 → R5 and R5 → R4 occur for dynamic adjustment LSP, the flow that will lead to R3 → R5 and R5 → R4
Reach 140% (i.e. (5G+2G)/5G).
Fig. 9 is two tunnel paths of simulation, and enough topological diagrams of bandwidth, as shown in figure 9, SDN Controller can
The bandwidth utilization information (determining bandwidth utilization information with bandwidth information using reserved bandwidth information and) for obtaining the whole network, can be with
The global LSP for adjusting newly-increased bandwidth tunnel in real time.R1 → R3 → R5 → R4 is adjusted to R1 → R3 → R4 by LSP adjusted.
The bandwidth availability ratio of R1 → R3 and R3 → R4 is that the bandwidth availability ratio of 50% (i.e. 5G/10G), R3 → R5 and R5 → R4 are at this time
40% (i.e. 2G/5G).
Figure 10 is the typical interaction diagrams of ACS and CPE, and Figure 11 is terminal device and gateway and ACS under gateway scene
Interaction diagrams when illustrating CPE and being respectively gateway and terminal device, establish communication as shown in Figure 10 and Figure 11 between ACS
Interaction flow, the specific steps are as follows:
Step S101: a certain gateway accessing Broadband Network, CPE (i.e. gateway) are according to preset URL connection
ACS reports our factory's quotient's attribute, hardware version numbers, software version number, equipment state, starting time, WAN by inform form
The facility informations such as connection attribute complete facility registration.
Step S102:ACS gets the information of equipment, responds inform response message, and obtain from northbound interface
The configuration information of the equipment issues the RPC such as SetParameterValues, completes the configuration to gateway.
Step S103: terminal device access gateway, terminal device are interacted with gateway by DHCP DISCOVER, are got
After gateway identification, to ACS reporting equipment information by way of inform, follow-up process is identical as step S101.
That is, gateway is interacted with ACS, gateway registration is realized, and after the completion of registration, ACS configures gateway,
After the completion of gateway configuration, terminal device is interacted by gateway with ACS, realizes terminal device registration, and after the completion of registration, ACS
Terminal device is configured, to realize the management to large scale network access device.
Figure 12 is the interaction diagrams of Service Configuration Manager and SDN Controller and ACS,
As shown in figure 12, the specific steps are as follows:
Step S201:ACS sends Inform message to the side Service Configuration Manager, reports newly-increased
The information of gateway, terminal device.
Step S202:Service Configuration Manager adds ACS, gateway, end by RESTful interface
The information of end equipment is to SDN Controller.
Further, Service Configuration Manager by RESTful interface can also add ACS according to
For the information of bad server to SDN Controller, which can be the server for saving latest edition.
Server that step S203:SDN Controller management ACS, ACS are relied on, gateway map between terminal device
Relationship is prepared for subsequent path planning and adjustment.
Step S204:ABR router is reported to SDN by BGP-LS by the IGP network topology collected and bandwidth situation
controller。
The mapping relations that step S205:SDN controller is safeguarded according to step S203, Network Search topology, determine
Position in ACS and cpe device corresponding network topology.
Step S206: when ACS needs to be promoted certain bandwidth, when managing CPE, Service Configuration
Manager calls the bandwidth in the RESTful interface notification SDN Controller adjustment path ACS to CPE first.
After step S207:SDN Controller calls PCE module to calculate road according to node end to end, road result will be calculated and be issued to
Path calculating client (Path Computation Client, PCC) module of ABR router establishes LSP by PCC triggering.
Step S208:SDN Controller is reported in the form of notification calculates road result to Service
Configuration Manager。
Step S209:Service Configuration Manager is issued by Northbound interface
ACS, ACS notify TR-069 to complete the management to CPE.
In conclusion the embodiment of the present invention has following technical effect that
The embodiment of the present invention combines SDN and TR-069, realizes to network insertions such as home gateway, set-top box, routers
Long-range management, scheduling, the configuration of equipment.
Although describing the invention in detail above, but the invention is not restricted to this, those skilled in the art of the present technique
It can be carry out various modifications with principle according to the present invention.Therefore, all to be modified according to made by the principle of the invention, all it should be understood as
Fall into protection scope of the present invention.
Claims (10)
1. a kind of method of SDN management network access equipment, comprising:
Software defined network SDN controller obtains the information for the client device that Automatic Configuration Server reports；
The information for the client device that the SDN controller is reported according to the Automatic Configuration Server, foundation are described certainly
The mapping relations of dynamic configuration server and the client device；
The SDN controller is according to the mapping relations of the Automatic Configuration Server and the client device, to the client
End equipment is managed.
2. according to the method described in claim 1, the SDN controller obtains the client device that Automatic Configuration Server reports
Information include:
After the client device completes registration to the Automatic Configuration Server, the SDN controller is from business configuration management
Device obtains the information for the registered client device that the Automatic Configuration Server reports.
3. according to the method described in claim 2, the SDN controller is according to the Automatic Configuration Server and the client
The mapping relations of equipment, are managed the client device and include:
The SDN controller is according to the mapping relations of the Automatic Configuration Server and the client device, via the industry
The information for being used to manage the client device is sent to the corresponding Automatic Configuration Server by business configuration manager, for
The information is issued to the client device by the Automatic Configuration Server.
4. according to the method described in claim 3, described for manage the information of the client device to be path configuration information,
The path configuration information is obtained by following steps:
The SDN controller is according to yet to be built or to be updated from the Automatic Configuration Server to the road of the client device
Diameter determines the position of the Automatic Configuration Server and the client device in network topology；
According to the position of the Automatic Configuration Server and the client device in network topology, find with it is described yet to be built or
To be updated believes from the Automatic Configuration Server to the relevant network topology in the path of the client device and network bandwidth
Breath；
According to the relevant network topology and network bandwidth information, routing processing is carried out, and according to processing result, generates path
Configuration information.
5. according to the method described in claim 4, the network bandwidth information includes reserved bandwidth information and has used bandwidth information,
The SDN controller is after the mapping relations for establishing the Automatic Configuration Server and the client device from zone boundary
Router obtains the network topology and the reserved bandwidth information, obtains from path-calculating element and described has used bandwidth information.
6. a kind of device of SDN management network access equipment, comprising:
Data obtaining module, for obtaining the information for the client device that Automatic Configuration Server reports；
Mapping block, the information of the client device for being reported according to the Automatic Configuration Server, foundation are described certainly
The mapping relations of dynamic configuration server and the client device；
Processing module, for the mapping relations according to the Automatic Configuration Server and the client device, to the client
End equipment is managed.
7. device according to claim 6, after the client device completes registration to the Automatic Configuration Server, institute
It states data obtaining module and obtains the registered client that the Automatic Configuration Server reports from business configuration manager
The information of equipment.
8. device according to claim 7, the processing module is according to the Automatic Configuration Server and the client
The information for being used to manage the client device is sent to correspondence via the business configuration manager by the mapping relations of equipment
The Automatic Configuration Server, so that the information is issued to the client device by the Automatic Configuration Server.
9. device according to claim 8, described for managing the information of the client device is path configuration information,
The processing module is according to yet to be built or to be updated from the Automatic Configuration Server to the path of the client device, determination
The position of the Automatic Configuration Server and the client device in network topology, according to the Automatic Configuration Server and
Position of the client device in network topology, find with it is described yet to be built or to be updated from the Automatic Configuration Server
To the relevant network topology in the path of the client device and network bandwidth information, and according to the relevant network topology and
Network bandwidth information carries out routing processing, and according to processing result, generates path configuration information.
10. device according to claim 9, the network bandwidth information includes reserved bandwidth information and is believed with bandwidth
Breath, after the mapping relations for establishing the Automatic Configuration Server and the client device, the data obtaining module is also
For obtaining the network topology and the reserved bandwidth information from Area Border Router, obtained from path-calculating element described
Bandwidth information is used.
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| CN201710756932.2A CN109428751A (en) | 2017-08-29 | 2017-08-29 | A kind of method and device of SDN management network access equipment |
| PCT/CN2018/101923 WO2019042213A1 (en) | 2017-08-29 | 2018-08-23 | Method and apparatus for managing network access device in sdn |
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| CN201710756932.2A CN109428751A (en) | 2017-08-29 | 2017-08-29 | A kind of method and device of SDN management network access equipment |
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| CN110213340A (en) * | 2019-05-10 | 2019-09-06 | 北京星网锐捷网络技术有限公司 | Cloud management method, interchanger, server and the platform of box interchanger |
| CN111314107A (en) * | 2019-12-26 | 2020-06-19 | 贵阳朗玛信息技术股份有限公司 | Automatic networking system and automatic networking method based on Internet service |
| CN113381879A (en) * | 2021-05-17 | 2021-09-10 | 浪潮思科网络科技有限公司 | SDN-based network deployment method and device |
| CN114125827A (en) * | 2021-11-24 | 2022-03-01 | 北京天融信网络安全技术有限公司 | Terminal management method, device and centralized management system |
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| WO2019042213A1 (en) | 2019-03-07 |
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