CN106411972A - Real-time data distribution system and method based on Openflow protocol - Google Patents
Real-time data distribution system and method based on Openflow protocol Download PDFInfo
- Publication number
- CN106411972A CN106411972A CN201510454369.4A CN201510454369A CN106411972A CN 106411972 A CN106411972 A CN 106411972A CN 201510454369 A CN201510454369 A CN 201510454369A CN 106411972 A CN106411972 A CN 106411972A
- Authority
- CN
- China
- Prior art keywords
- module
- dds
- data
- network
- qos
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
-
- 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
- H04L67/60—Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources
Abstract
The invention provides a real-time data distribution system and method based on an Openflow protocol. A communication framework proposed by the invention combines a DDS and an SDN to support efficient dynamic distributed application. The system mainly includes an underlying network device, a DDS interface API, a controller, a DDS agent, a northbound interface and an application service. The DDS agent, the DDS interface API, and a routing agent in the underlying network device are components of the DDS system. The northbound interface, the controller, a southbound interface, an OF switch, and the Openflow protocol are components of the software defined network. The SDN brings flexibility to the network and provides the set of on-demand dynamic communication network service quality. The invention distributes a corresponding flow table for a device in a data forwarding plane by using a Meter table mechanism achieving a QoS function in the Openflow protocol, allocates the network resources collectively and improves the utilization rate of the whole network.
Description
Technical field
The present invention relates to networking technology area, in particular it is a kind of real-time data distribution system based on Openflow agreement and method.
Background technology
With developing rapidly of the technology such as control, communication, computer, the architecture of various application systems presents network-centric trend, and this is proposed higher requirement to the real-time of communication network, dynamic, flexibility.At the same time it is wished that being a kind of loosely-coupled relation between each participant in system, and QoS request also needs to support flexible interaction mechanism and communication pattern.Existing publish/subscribe system can provide the communication pattern of loose coupling, but lack suitable system and control and application layer QoS support.Therefore, be badly in need of a kind of be controlled the system of qos parameter deployment real-time system needed for can to meet distributed real-time application demand based on publish/subscribe pattern and effective and reasonablely.
The essence of dynamic application is the challenge to underlying communications systems and communication network, the challenge that this adds increased to network scalability and support high QoS characteristic.If in fact, network resource utilization is focus of attention, then network must flexibly realize the planning again for network application change enough.Or current method solves the dynamic sex chromosome mosaicism of application, or the utilization rate of concern Internet resources, and it is all based on dedicated network or the nerve of a covering of static state, this makes to arrange network performance on demand highly difficult.The appearing as solving the above problems of software defined network SDN provides new method, and its flexible network construction characteristic is capable of fine granularity dynamic network plan on demand.Therefore, SDN can support dynamic distributed real-time application effectively, ensure that network resource utilization is very high simultaneously.
Dynamic realtime is efficiently supported to apply present invention is primarily intended to proposing the communication system of a kind of combination data distribution service middleware and the SDN based on Openflow agreement.The reason using Data distributing, is because that Data distributing application is employed successfully in high-performance distributed real-time system, using the teaching of the invention it is possible to provide many qos parameters are used for the demand of Data distributing Expression and Application.These qos parameter major parts are dynamic, and can operationally change, to ensure the QoS demand of Data distributing middleware capture dynamic application.The Pub/sub model that Data distributing is supported can capture the dynamic of application further it is allowed to application part dynamically changes data flow.In order to ensure QoS, the control to terminal use and network data is all compulsory.For terminal use, carry out access host resource when Data distributing is present in terminal use it is necessary to defining one group of mechanism and realizing QoS cognitive control；For Internet resources, network interface needs according to application demand network resource administration, and these demands are exactly that SDN can provide.
Content of the invention
The present invention is directed to distributed real-time application, propose a kind of real-time data distribution system based on Openflow agreement and method, the network frame being combined using Data distributing middleware and software defined network, to meet the demand to QoS dynamic change for the distributed real-time application.
The present invention be employed technical scheme comprise that for achieving the above object：A kind of real-time data distribution system based on Openflow agreement, including：
Data distributing assembly, based on data-centered distribution/subscription model, for providing real time data to transmit, and controls the demand to communication quality for the different user by QoS classification and preemption mechanism；User's QoS demand analysis based on publish/subscribe mode and definition, and result is fed back to controller, controller unification issues flow table layer exchange device on earth；
SDN assembly, for separating data platform with control platform, provides unified mechanism of control.
Described Data distributing assembly includes：
DDS proxy module, for analyzing the request data receiving, is resolved to the data mode that can be understood by the controller module in SDN assembly, is subsequently sent to controller module；
DDS interface API module, is route agent's module and the information interaction passage of DDS proxy module；
Route agent's module, for finding to subscribe to request and issuing request, and the request receiving is sent to DDS proxy module by DDS interface API module.
Described SDN assembly includes：
Northbound interface module, is the exchange channels of controller module and various applications；
Controller module, the request for sending to the DDS proxy module in data distribution serviced component is analyzed calculating, and obtains corresponding routing information, is issued to DDS proxy module；
Southbound interface module, is the interface channel of controller module and OF switch module；
OF switch module, is the switch supporting Openflow agreement, the forwarding of responsible network low level data, and by southbound interface module and controller module interactive control information；
Openflow protocol module, is a kind of switching technology, sets up software defined network, realizes data flow and only transmits in the OF switch module of bottom, controlling stream is issued to each OF switch module by controller module with the unity of form of flow table.
Described controller module includes：
Network topology module, for storing logical topology and physical topology information in network；
QoS module, is the module storing and analyzing network QoS demand, is responsible for existing QoS is stored, and carries out response analysis to new QoS demand；
Load balancing module, is the module realizing Internet resources reasonable distribution, and the bandwidth to network and cache resources carry out global administration, distributes rational Internet resources in conjunction with network topology and QoS demand for data flow, with maximization network resource utilization；
Openflow module, is the controller part of Openflow agreement, responsible flow table issue and control data that OF switch transmits analyzing and processing；
Vlan module, for carrying out vlan division for different publish/subscribe groups, that is, defines a vlan having same subject, and carries out unified process for the data in different vlan.
Described Openflow agreement is Openflow-spec-v1.4.0.
Described QoS demand includes time delay, bandwidth, priority, preemptive type demand.
A kind of real-time data distribution method based on Openflow agreement, comprises the following steps：
Step 1：After terminal applies initiate to issue request of data, this request is transferred in DD assembly, then passes to and is stored according to theme in SDN assembly and returned issue success message；
Step 2：After having subscription end to initiate to subscribe to request, this request is similarly passed in controller module by DDS assembly, controller module has been registered by the theme that theme searches whether demand, subscribes to failed message without then sending to subscription end, if there are then returning subscription success message；
Step 3：The QoS demand of Data distributing block analysis subscription end, and this QoS information is sent to the controller module in SDN assembly, controller module carries out storage analysis, calls topology information, qos feature module and the load-balancing function module of correlation to calculate the routed path of optimum；
Step 4：Optimum routed path information is converted into the flow table information of each relevant device by controller module, is then issued in OF switch, and forwards the data from terminal device according to flow table, and the data realizing meeting QoS demand is distributed in real time.
The present invention has advantages below and beneficial effect：Solve the problems, such as distributed real-time application to the dynamic need of communication delay and bandwidth it is achieved that to the configuration of the high efficient and flexible of Internet resources.In the present invention, the data distribution middleware based on publish/subscribe distribution mode, has the ability of dynamically distributes qos parameter, to tackle data flow and its QoS demand of real-time change.In the present invention, the low problem of resource utilization that Internet resources fixed allocation is brought is solved based on the software defined network framework of Openflow agreement, there is provided flexible dynamic network resource distribution on demand.In addition, the present invention realizes complicated QoS configuration by cooperating to the Meter table in Openflow agreement and port queue table.The present invention can greatly meet the dynamic need to QoS for the user, improve the utilization rate of Internet resources it is adaptable to have in the network application of special demands to real-time simultaneously.
Brief description
Fig. 1 is the DDS block diagram based on SDN of the present invention；
Fig. 2 is the object model diagram of the DDS of the present invention；
Fig. 3 is the QoS security mechanism schematic diagram of the present invention；
Fig. 4 is the flow process of the controller processing business of the present invention；
Fig. 5 is the QoS data stream process process of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment the present invention is described in further detail.
The present invention proposes real-time data distribution system and the method based on Openflow agreement for distributed real-time application, and this system combines Data distributing and software defined network framework, and architecture is as shown in Figure 1.This system mainly includes underlay network device, DDS interface API (also known as southbound interface), controller, DDS agency, northbound interface and application service.Route agent in wherein DDS agency, DDS interface API and underlay network device is the assembly of DDS system, and northbound interface, controller, southbound interface, OF switch and Openflow agreement are the assemblies of software defined network.SDN in this system supports Openflow agreement, is forwarded by the storage that flow table realizes data.Terminal use is registered to data distribution systems by topic by publish/subscribe transmission mode, log-on message is saved in controller by DDS agency's unification, when there being APP request, carry out unifying router-level topology and carrying out flow table issuance according to the information preserving by controller, the utilization rate of peak optimizating network resource simultaneously.
Data distributing in the present invention defines a kind of standard card cage based on publish/subscribe pattern, provides global data storage platform, and publishing side is used for writing data, and subscription end is used for reading data.DDS provides a full decoupled flexible modular framework, and this framework main feature includes：Stowed position information is subscribed to using issue of anonymity；Many publishing sides and many subscription end is allowed to realize redundancy；The data distribution of asynchronous time independence is provided；Message based data-centered connection management is provided；And compatibility kinds of platform.The domain member of this system enters row cache to the data in publish/subscribe pattern according to QoS demand, and this DDS object model is as shown in Fig. 2 mainly include message subject, domain member's data domain.Domain member is sent to publisher according to the data that theme will send by data transmitter, and carry out queue caching according to service quality, it is then passed through the data field of DDS, then processed accordingly by controller, corresponding routed path is calculated according to Openflow, then acted on behalf of by DDS and issue routing iinformation to route agent, be then stored in the flow table of respective switch.Then again the data of publishing side is sent in subscriber through data field.
The workflow of the real-time data distribution system based on Openflow agreement obeys Openflow agreement, real time business handling process schematic diagram is as shown in Figure 3, wherein DDS APP is the terminal applies of Data distributing, it is publishing side or subscription end, in figure includes 3 subnets, 3 gateways and a SDN controller.Idiographic flow is as follows：
Step 1：After terminal applies initiate to issue request of data, this request is transferred in DDS service system, then passes to and is stored according to topic in SDN controller and returned issue success message；
Step 2：After having subscription end to initiate to subscribe to request, this request is similarly passed in controller by DDS service system, controller has been registered by the theme that theme searches whether demand, subscribes to failed message without then sending to subscription end, if there are then returning subscription success message；
Step 3：The QoS demand of DDS network analysis subscription end, and this QoS information is sent to SDN controller, controller carries out storage analysis, calls topology information, qos feature and the load-balancing function of correlation to calculate the routed path of optimum；
Step 4：Optimum routed path information is converted into the flow table information of each relevant device by controller, is then issued in each equipment, and terminal device forwards according to flow execution information, is achieved that the real-time dissemination system of the data meeting QoS demand.
SDN controller processing business flow process mainly divides three parts, and including monitoring, planning and execution, process flow block diagram is as shown in Figure 4.Controller carries out real-time monitoring to network state, after receiving network event, network event is processed accordingly, then judging whether network environment changes, if do not changed, continuing with network event, if changed, setting up new Openflow environment, judge whether Internet resources are optimized allocative decisions, if it is whether by change application in network, if otherwise re-establishing new Openflow environment, rejudging is to optimize resource allocation.After controller receives DDS QoS event, initially set up DDS QoS constraint, then judge whether network constraint changes, do not change and then re-establish DDS QoS constraint, after changing, set up new Openflow environment, it is then followed by judging whether Internet resources are optimum, optimum then executes change operation, otherwise re-establishes Openflow environment, and this is consistent with the flow process processing network event.
Controller based on Openflow agreement controls to the QoS of data flow, mainly pass through Meter table mechanism to realize, but the qos feature that Meter table is capable of in itself is few, it is thus desirable to being extended to Meter table, and the set-queue action being supported with queue is be combined with each other and realizes complicated QoS demand.The handling process schematic diagram of data flow is as shown in Figure 5.When DDS agency by event transmission to controller after, Flow_in_event event initially enters QoS memory module, QoS index is stored, it is easy to following resource analysis module whole network resource is analyzed, then carry out real time business router-level topology for QoS demand, obtain real-time routed path, then the utilization rate of Internet resources is estimated, if Current resource utilization rate optimum, QoS configuration is forwarded as flow table issuance to lower floor's network equipment, if not optimum, then return resource analysis module and recalculate real-time route, till obtaining optimum link resource.
Claims (7)
1. a kind of real-time data distribution system based on Openflow agreement is it is characterised in that include：
Data distributing assembly, based on data-centered distribution/subscription model, counts in real time for providing
According to transmission, and the demand to communication quality for the different user is controlled by QoS classification and preemption mechanism；It is based on
User's QoS demand analysis of publish/subscribe mode and definition, and result is fed back to controller, control
Device unification issues flow table layer exchange device on earth；
SDN assembly, for separating data platform with control platform, provides unified mechanism of control.
2. a kind of real-time data distribution system based on Openflow agreement according to claim 1,
It is characterized in that, described Data distributing assembly includes：
DDS proxy module, for analyzing the request data receiving, being resolved to can be by SDN assembly
Controller module understand data mode, be subsequently sent to controller module；
DDS interface API module, is route agent's module and the information interaction passage of DDS proxy module；
Route agent's module, for finding to subscribe to request and issuing request, and DDS is passed through in the request receiving
Interface API module is sent to DDS proxy module.
3. a kind of real-time data distribution system based on Openflow agreement according to claim 1,
It is characterized in that, described SDN assembly includes：
Northbound interface module, is the exchange channels of controller module and various applications；
Controller module, the request for sending to the DDS proxy module in data distribution serviced component is carried out
Analytical calculation, and obtain corresponding routing information, it is issued to DDS proxy module；
Southbound interface module, is the interface channel of controller module and OF switch module；
OF switch module, be support Openflow agreement switch, responsible network low level data turn
Send out, and by southbound interface module and controller module interactive control information；
Openflow protocol module, is a kind of switching technology, sets up software defined network, only realizes data flow
The OF switch module of bottom transmits, controlling stream is issued to the unity of form of flow table by controller module
Each OF switch module.
4. a kind of real-time data distribution system based on Openflow agreement according to claim 3,
It is characterized in that, described controller module includes：
Network topology module, for storing logical topology and physical topology information in network；
QoS module, is the module storing and analyzing network QoS demand, is responsible for existing QoS is deposited
Storage, and response analysis is carried out to new QoS demand；
Load balancing module, is the module realizing Internet resources reasonable distribution, and the bandwidth to network and caching provide
Source carries out global administration, distributes rational Internet resources in conjunction with network topology and QoS demand for data flow, with
Maximization network resource utilization；
Openflow module, is the controller part of Openflow agreement, responsible flow table issue and OF hand over
The analyzing and processing of the control data transmitting of changing planes；
Vlan module, for carrying out vlan division for different publish/subscribe groups, that is, define one have identical
The vlan of theme, and carry out unified process for the data in different vlan.
5. a kind of real-time data distribution system based on Openflow agreement according to claim 3,
It is characterized in that, described Openflow agreement is Openflow-spec-v1.4.0.
6. a kind of real-time data distribution system based on Openflow agreement according to claim 1,
It is characterized in that, described QoS demand includes time delay, bandwidth, priority, preemptive type demand.
7. a kind of real-time data distribution method based on Openflow agreement is it is characterised in that include following
Step：
Step 1：After terminal applies initiate to issue request of data, this request is transferred in DD assembly,
Then pass to and stored according to theme in SDN assembly and returned issue success message；
Step 2：After having subscription end to initiate to subscribe to request, this request is similarly passed to control by DDS assembly
In device module, controller module has been registered by the theme that theme searches whether demand, without then
Send to subscription end and subscribe to failed message, if there are then returning subscription success message；
Step 3：The QoS demand of Data distributing block analysis subscription end, and this QoS information is transmitted
Controller module in SDN assembly, controller module carry out storage analysis, call correlation topology information,
Qos feature module and load-balancing function module calculate optimum routed path；
Step 4：Optimum routed path information is converted into the flow table letter of each relevant device by controller module
Breath, is then issued in OF switch, and forwards the data from terminal device according to flow table, realizes meeting
The data of QoS demand is distributed in real time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510454369.4A CN106411972A (en) | 2015-07-29 | 2015-07-29 | Real-time data distribution system and method based on Openflow protocol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510454369.4A CN106411972A (en) | 2015-07-29 | 2015-07-29 | Real-time data distribution system and method based on Openflow protocol |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106411972A true CN106411972A (en) | 2017-02-15 |
Family
ID=58008838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510454369.4A Pending CN106411972A (en) | 2015-07-29 | 2015-07-29 | Real-time data distribution system and method based on Openflow protocol |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106411972A (en) |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106911573A (en) * | 2017-02-28 | 2017-06-30 | 郑州云海信息技术有限公司 | A kind for the treatment of method and apparatus of forwarding flow table |
| CN107612731A (en) * | 2017-09-19 | 2018-01-19 | 北京工业大学 | One kind is based on the believable network section generation of software definition and credible recovery system |
| CN108289062A (en) * | 2017-12-21 | 2018-07-17 | 北京邮电大学 | A kind of information centre's network structure based on software definition |
| WO2019007403A1 (en) * | 2017-07-07 | 2019-01-10 | 南京中兴新软件有限责任公司 | Service configuration-driven flow table method and device |
| CN109274093A (en) * | 2018-10-19 | 2019-01-25 | 北京中电普华信息技术有限公司 | A kind of electric power resource scheduling system |
| CN109936505A (en) * | 2017-12-15 | 2019-06-25 | 上海诺基亚贝尔股份有限公司 | Method and apparatus in data-centered software defined network |
| CN109995800A (en) * | 2017-12-29 | 2019-07-09 | 中国科学院沈阳自动化研究所 | The middleware services system and method applied towards dynamic realtime in industrial SDN network |
| CN110430114A (en) * | 2019-07-24 | 2019-11-08 | 中国电子科技集团公司第七研究所 | A kind of virtual router and the method for realizing SDN network and traditional IP interconnection |
| CN110768809A (en) * | 2018-07-25 | 2020-02-07 | 上海科技网络通信有限公司 | SDN controller based on big data cloud platform |
| CN111935666A (en) * | 2020-08-13 | 2020-11-13 | 山东超越数控电子股份有限公司 | Wearable communication system |
| CN112217555A (en) * | 2020-08-24 | 2021-01-12 | 成都天奥集团有限公司 | Formation satellite routing method based on SDN architecture and adopting SR routing protocol |
| CN112637265A (en) * | 2020-11-25 | 2021-04-09 | 新华三技术有限公司 | Equipment management method, device and storage medium |
| CN112667387A (en) * | 2021-03-15 | 2021-04-16 | 奥特酷智能科技(南京)有限公司 | DDS-based design model for synchronization of persistent data objects |
| CN113810271A (en) * | 2021-08-31 | 2021-12-17 | 上海蓉亿科技有限公司 | Southbound equipment interface agent device of Internet of things gateway and implementation method |
| CN114268555A (en) * | 2021-12-27 | 2022-04-01 | 中国电子科技集团公司第十四研究所 | Data management system based on DDS |
| CN114553980A (en) * | 2021-12-31 | 2022-05-27 | 西安空间无线电技术研究所 | Message service method for decoupling control flow and data flow |
| CN115913809A (en) * | 2022-09-26 | 2023-04-04 | 重庆长安汽车股份有限公司 | Data distribution communication method, system, computer device and storage medium |
| CN115913809B (en) * | 2022-09-26 | 2024-05-03 | 重庆长安汽车股份有限公司 | Data distribution communication method, system, computer device and storage medium |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101848236A (en) * | 2010-05-06 | 2010-09-29 | 北京邮电大学 | Real-time data distribution system with distributed network architecture and working method thereof |
| CN104717142A (en) * | 2015-02-10 | 2015-06-17 | 国家计算机网络与信息安全管理中心 | Method for conducting mobile management based on OpenFlow |
-
2015
- 2015-07-29 CN CN201510454369.4A patent/CN106411972A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101848236A (en) * | 2010-05-06 | 2010-09-29 | 北京邮电大学 | Real-time data distribution system with distributed network architecture and working method thereof |
| CN104717142A (en) * | 2015-02-10 | 2015-06-17 | 国家计算机网络与信息安全管理中心 | Method for conducting mobile management based on OpenFlow |
Non-Patent Citations (1)
| Title |
|---|
| LIONEL BERTAUX等: ""A DDS/SDN Based Communication System for Efficient Support of Dynamic Distributed Real-time Applications"", 《2014 IEEE/ACM 18TH INTERNATIONAL SYSPOSIUM ON DISTRIBUTED SIMULATION AND REAL TIME APPLICATIONS》 * |
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106911573A (en) * | 2017-02-28 | 2017-06-30 | 郑州云海信息技术有限公司 | A kind for the treatment of method and apparatus of forwarding flow table |
| WO2019007403A1 (en) * | 2017-07-07 | 2019-01-10 | 南京中兴新软件有限责任公司 | Service configuration-driven flow table method and device |
| CN107612731A (en) * | 2017-09-19 | 2018-01-19 | 北京工业大学 | One kind is based on the believable network section generation of software definition and credible recovery system |
| CN109936505B (en) * | 2017-12-15 | 2021-06-22 | 上海诺基亚贝尔股份有限公司 | Method and apparatus in data-centric software-defined networks |
| CN109936505A (en) * | 2017-12-15 | 2019-06-25 | 上海诺基亚贝尔股份有限公司 | Method and apparatus in data-centered software defined network |
| CN108289062A (en) * | 2017-12-21 | 2018-07-17 | 北京邮电大学 | A kind of information centre's network structure based on software definition |
| CN109995800A (en) * | 2017-12-29 | 2019-07-09 | 中国科学院沈阳自动化研究所 | The middleware services system and method applied towards dynamic realtime in industrial SDN network |
| CN110768809A (en) * | 2018-07-25 | 2020-02-07 | 上海科技网络通信有限公司 | SDN controller based on big data cloud platform |
| CN109274093A (en) * | 2018-10-19 | 2019-01-25 | 北京中电普华信息技术有限公司 | A kind of electric power resource scheduling system |
| CN110430114A (en) * | 2019-07-24 | 2019-11-08 | 中国电子科技集团公司第七研究所 | A kind of virtual router and the method for realizing SDN network and traditional IP interconnection |
| CN111935666A (en) * | 2020-08-13 | 2020-11-13 | 山东超越数控电子股份有限公司 | Wearable communication system |
| CN112217555A (en) * | 2020-08-24 | 2021-01-12 | 成都天奥集团有限公司 | Formation satellite routing method based on SDN architecture and adopting SR routing protocol |
| CN112217555B (en) * | 2020-08-24 | 2022-05-10 | 成都天奥集团有限公司 | Formation satellite routing method based on SDN architecture and adopting SR routing protocol |
| CN112637265A (en) * | 2020-11-25 | 2021-04-09 | 新华三技术有限公司 | Equipment management method, device and storage medium |
| CN112637265B (en) * | 2020-11-25 | 2022-07-12 | 新华三技术有限公司 | Equipment management method, device and storage medium |
| CN112667387A (en) * | 2021-03-15 | 2021-04-16 | 奥特酷智能科技(南京)有限公司 | DDS-based design model for synchronization of persistent data objects |
| CN113810271A (en) * | 2021-08-31 | 2021-12-17 | 上海蓉亿科技有限公司 | Southbound equipment interface agent device of Internet of things gateway and implementation method |
| CN114268555A (en) * | 2021-12-27 | 2022-04-01 | 中国电子科技集团公司第十四研究所 | Data management system based on DDS |
| CN114553980A (en) * | 2021-12-31 | 2022-05-27 | 西安空间无线电技术研究所 | Message service method for decoupling control flow and data flow |
| CN114553980B (en) * | 2021-12-31 | 2023-11-10 | 西安空间无线电技术研究所 | Message service method for decoupling control flow and data flow |
| CN115913809A (en) * | 2022-09-26 | 2023-04-04 | 重庆长安汽车股份有限公司 | Data distribution communication method, system, computer device and storage medium |
| CN115913809B (en) * | 2022-09-26 | 2024-05-03 | 重庆长安汽车股份有限公司 | Data distribution communication method, system, computer device and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106411972A (en) | Real-time data distribution system and method based on Openflow protocol | |
| US11005747B2 (en) | Method for implementing network virtualization and related apparatus and communications system | |
| EP2356775B1 (en) | Central controller for coordinating multicast message transmissions in distributed virtual network switch environment | |
| WO2015149604A1 (en) | Load balancing method, apparatus and system | |
| CN105282191B (en) | SiteServer LBS, controller and method | |
| EP3086513A1 (en) | Message processing method and gateway | |
| CN102307230B (en) | Service transmission method and device | |
| CN103916634B (en) | A kind of VOD method controlled based on openflow | |
| CN103379184A (en) | Network service access method and system | |
| CN109274747A (en) | Market gateway system and its processing method | |
| US20140025800A1 (en) | Systems and methods for multi-blade load balancing | |
| CN105119787A (en) | Public Internet access system and public Internet access method based on software definition | |
| CN102368725A (en) | Data receiving method of multiple network cards and system thereof | |
| CN107770255A (en) | Terminal device data sharing master control device and method for collaborative work | |
| CN109995875A (en) | Virtualization data distributes elastomeric network system | |
| CN101702761A (en) | Multimedia video interactive method and system | |
| CN104159267A (en) | Multiple-network-integrated cloud architecture mobile self-networking system and implement method thereof | |
| CN112887117B (en) | Method, equipment and medium for accessing and configuring network slice | |
| CN106453118B (en) | Flow control method and flow control system | |
| CN104320282A (en) | Method for switching of main and standby virtual machines in virtual edge port aggregation system and physical mainframes | |
| CN109995800A (en) | The middleware services system and method applied towards dynamic realtime in industrial SDN network | |
| CN104125271B (en) | A kind of distributed structure/architecture method being applied to visualization data-pushing platform | |
| CN103139161B (en) | The business management method of a kind of Video Distribution Network and device | |
| CN105471859A (en) | Flow-granularity-based access control method | |
| RU2014117681A (en) | METHOD OF ACCESS TO LOGIC NETWORK SYSTEMS USING SOFTWARE SERVICE REQUESTS |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170215 |
|
| WD01 | Invention patent application deemed withdrawn after publication |