CN107528743A - A kind of distributed network virtualization system of SDN - Google Patents
A kind of distributed network virtualization system of SDN Download PDFInfo
- Publication number
- CN107528743A CN107528743A CN201711008118.9A CN201711008118A CN107528743A CN 107528743 A CN107528743 A CN 107528743A CN 201711008118 A CN201711008118 A CN 201711008118A CN 107528743 A CN107528743 A CN 107528743A
- Authority
- CN
- China
- Prior art keywords
- network
- module
- virtualization
- sdn
- distributed
- 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.)
- Granted
Links
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The invention discloses a kind of distributed network virtualization system for the SDN for providing the forwarding of agreement unaware, including：SDN south orientation protocol modules, the module can realize SDN south orientation agreements；Nucleus module, the module realizes the storage management to bottom physical network data by distributed protocol Raft, and is realized synchronously between different network virtualization systems；Virtualization layer module, the module are used to realize network virtualization；And tenant's application module.The distributed network virtualization system of SDN provided by the invention, with reference to the advantages of the noninductive retransmission technique of agreement and distributed SDN controllers open network operating system design, an efficient network virtualization system is provided for SDN, both the reliability and expansibility demand of network virtualization system can have been solved, the programmability of virtual SDN can be improved again.
Description
Technical field
The present invention relates to mobile communication technology field, more particularly, to a kind of SDN nets of achievable agreement unaware forwarding
The distributed network virtualization system of network.
Background technology
With the fast development of network technology, network virtualization more and more receives the pass of academia and industrial quarters
Note, using network virtualization, equipment supplier can be unrelated in bottom physical network resource according to the requirement of service provider, logic
In dynamic carry out network section.SDN is that one kind realizes network data area and chain of command separation, so as to improve network programmability
Technology.Network virtualization and SDN technologies are combined, it is possible to achieve the virtualization of SDN.So, different tenants gathers around
There is logically independent virtual SDN, and bottom physical network resource more flexibly can also provide service for tenant.
Although SDN virtualizes the performance that virtual network can be greatly enhanced by itself programmable features, real
Existing SDN virtualization needs an efficient network virtualization system (Network Virtualization
Hypervisor,NVH).In SDN virtualization process is realized, NVH is responsible for abstract and isolation bottom Internet resources to every
One tenant uses.NVH provides virtual switch and establishes connection with tenant's controller simultaneously, realizes tenant's virtual topology to physics
The mapping of topology.Therefore, the Performance And Reliability of NVH system is most important to realizing for SDN virtualization technology.
Currently, academia and industrial quarters also have the much research on NVH system.FlowVisor, OpenVirteX and
SR-PVX etc. is the significant NVH of performance released in recent years by academia and industrial quarters, but they are all using concentration
Formula architecture design, i.e., the message between controller and interchanger all in virtual SDN is handled using single NVH.So
And centralized architecture design has many shortcomings relative to distributed structure/architecture, such as when NVH cisco unity malfunctions now
All virtual SDNs can be caused normally to provide network service.In addition, the NVH of centralization effectively may be used due to lacking
Autgmentability in large scale network so that it can not be on the actual application.
The NVH that FlowVisor, OpenVirteX realize both for OpenFlow Protocol Designs, but due to
OpenFlow agreement correlation causes the programmability of the virtual SDN based on OpenFlow protocol realizations to reduce, limitation
The flexibility of virtual SDN.Unlike OpenFlow, POF is a kind of support data plane protocols unaware forwarding
SDN technologies.POF does matching forwarding to packet according to the offset and deflected length of packet, and without according to specific association
Type parsing packet is discussed, such POF can realize the agreement unaware forwarding of data surface.
The content of the invention
The technical problem to be solved in the present invention is as follows：In order to solve the network virtualization system of currently existing SDN
Lack distributed structure/architecture design, and the high reliability and expansibility of the application of network virtualization system actual deployment can not be met
The defects of demand, the invention provides a kind of distributed network virtualization system of the SDN based on the forwarding of agreement unaware.
The distributed network virtualization system of SDN provided by the invention, including：SDN south orientations protocol module, core mould
Block, virtualization layer module, tenant's application module.Wherein, SDN south orientations protocol module, the module can realize SDN south orientation agreements,
For the communication being responsible between agreement unaware forwarding (hereinafter referred to as POF) interchanger, acquisition network state and will thereon
It is transmitted to core layer module；Nucleus module, the module realize the storage to bottom physical network data by distributed protocol Raft
Management, and realized synchronously between different network virtualization systems (hereinafter referred to as NVH)；Virtualization layer module, the module
For realizing network virtualization, network virtualization virtualizes including POF interchangers, network link virtualization, flow table space virtual
Change；Tenant's application module, the module are application module, pass in and out the message of the module by virtualization layer module according to different tenants
It is mapped to different network virtualization systems.
The nucleus module by distributed protocol Raft except that can realize the storage to bottom physical network data
Management, and realized between different NVH outside synchronous, in addition to network topology and network equipment module, flow table module and void
Intend mixed-media network modules mixed-media.Wherein, the network topology and network equipment module be used in Treated Base physical network POF interchangers and
The data message of network topology；The flow table module is used to handle the generation of POF flow tables and is issued to the behaviour of POF interchangers
Make so that the POF interchangers in bottom physical network can receive flow table and be operated according to flow table information realization data forwarding；
The virtual network module is responsible for realizing the virtualization of virtual SDN.
The virtualization layer module includes micro services module, virtualizes and go virtualization modules.Wherein, the micro services mould
Block is used for the virtual SDN that each tenant possesses it and defines different services；The virtualization is used with going virtualization modules
Virtualization operations, Yi Jiyong are carried out in the message to being returned to virtualization layer service by the POF interchangers in bottom physical network
In the mapping relations according to virtual network and bottom physical network, POF top service being sent in bottom physical network is handed over
The message changed planes carries out virtualization operations.
The distributed network virtualization system of achievable agreement unaware SDN provided by the invention, is realizing data
During storage management by the way of local cache.Change the read operation of network state using local cache mode, can be significantly
The speed of the digital independent of distributed network virtualization system is improved, so as to improve systematic function, increase distributed network is virtual
The practicality of change system.
The distributed network virtualization system of SDN provided by the invention, controlled with reference to POF technologies and distributed SDN
The advantages of device open network operating system (Open Network Operating System, abbreviation ONOS) design processed, be SDN
Network provides an efficient network virtualization system, can both solve NVH reliability and expansibility demand, can improve again
The programmability of virtual SDN；Meanwhile improve distributed network void by using efficient data storage and the method for synchronization
The performance of planization system；In addition, the distributed structure/architecture design that system physical distributed logic is concentrated enables the deployment root of system
Dynamically expanded according to demand.
Brief description of the drawings
Fig. 1 is the structural representation of distributed network virtualization system of the present invention；
Fig. 2 is the processing data packets schematic flow sheet of distributed network virtualization system of the present invention；
Fig. 3 is the read-write schematic flow sheet of the network state of distributed network virtualization system of the present invention；
Fig. 4 is the active-standby switch schematic diagram of distributed network virtualization system of the present invention.
Embodiment
In order to preferably illustrate present disclosure and realize details, next said with reference to accompanying drawing for upper some embodiments
It is bright.
When the virtualization of network is realized in design, this programme is deployed in bottom physical network using mark tenant ID to distinguish
On each virtual network.When realizing, upper layer application can be each cut out one spy of virtual SDN mark
Fixed tenant ID, afterwards during virtualization is gone, system can be according to tenant ID and the virtual network of storage and bottom thing
Each message body is sent in the physical switches of bottom by the mapping relations of reason network.The physical exchange of bottom in the present invention
Machine is using agreement unaware forwarding interchanger.
The distributed NVH system of the present invention has the characteristics of high availability.It is to improve in the production environment of reality
One physical switches is often connected by the availability of system, people with multiple NVH systems, and now these NVH systems can basis
Master role and slave role are divided into the control authority of physical switches, the NVH system that only role is master is
There is control to the physical switches, for example collect the status information of the physical switches, flow table is issued to the physical switches
Deng.The NVH that role is master can be only sent to by physical switches by belonging to the Packet in message of specific virtual SDN
System, and the NVH system with master role can be communicated the network state information of storage in master by East and West direction
Transmitted in role's and slave role's NVH.When cluster NVH detects by heartbeat packet message the NVH systems of master role
Unite cisco unity malfunction when, cluster NVH will follow distributed protocol Raft and conduct an election, after selecting master again
Role_request message is issued to change the role of NVH system.So, the new NVH system with master role can connect
The current virtual SDN of pipe.
Illustrate the Organization Chart of the distributed SDN virtualization system with reference to Fig. 1.The distributed network of SDN of the present invention
Network virtualization system, including SDN south orientations protocol module, nucleus module, virtualization layer module, tenant's application module.
Wherein, SDN south orientations protocol module：The module realizes SDN south orientation agreements, main to be responsible between POF interchangers
Communication, obtain network state and be uploaded to core layer module.
Nucleus module：Function with data storage, and can be realized between different NVH synchronous.The module passes through
Distributed protocol Raft realized to the storage managements of bottom physical network data, and different network virtualization system (with
Lower abbreviation NVH) between realize it is synchronous.Each NVH is it can be seen that the network view of the overall situation.Bottom physical network packet
Include：Network equipment information such as POF exchanger informations, and network data such as network link information.
Nucleus module except the storage management to bottom physical network data can be realized by distributed protocol Raft,
And synchronous outer, in addition to several small submodules, respectively network topology and network equipment mould are realized between different NVH
Block, flow table module and virtual network module.Wherein, network topology is used in Treated Base physical network with network equipment module
The data message of POF interchangers and network topology；Flow table module is used to handle the generation of POF flow tables and is issued to POF friendships
The operation changed planes so that the POF interchangers in bottom physical network can receive flow table and according to flow table information realization data
Forwarding operation；Virtual network module is responsible for realizing the virtualization of virtual SDN.We change distributed SDN in this programme
Controller ONOS, increase the storage to POF flow tables and the function of issuing in ONOS nucleus module, in ONOS south orientation agreement moulds
Block realizes POF agreements, it is supported the agreement unaware forwarding on POF protocol realization data surfaces.
Virtualization layer module：The module realizes the function of network virtualization, such as realizes the virtualization of POF interchangers, net
Network link virtualizes, the function such as flow table space virtualization.Virtualization layer module includes several small submodules, respectively micro services
Module, virtualize and go virtualization modules.First, the virtual SDN that micro services module allows each tenant to possess it is determined
The different service of justice.In addition, by the POF interchangers in bottom physical network be returned to virtualization layer service message need by
Virtualize and go virtualization modules to carry out virtualization operations, and top service is sent to the POF interchangers in bottom physical network
Message need by virtualization with go virtualization modules to go to virtualize it according to the mapping relations of virtual network and physical network
After could be handled by physical switches.
Tenant's application module：The module is virtual SDN application module, due to passing in and out the message of the module by virtualizing
Layer module is mapped to different network virtualization systems according to different tenants, therefore different tenants is to virtual SDN
Operation is all independent and isolation.
The distributed network virtualization system of SDN provided by the invention, controlled with reference to POF technologies and distributed SDN
The advantages of device ONOS designs processed, an efficient network virtualization system is provided for SDN, can both solve the reliable of NVH
Property and expansibility demand, the programmability of virtual SDN can be improved again；Meanwhile by using efficient data storage and
The method of synchronization improves the performance of distributed network virtualization system；In addition, the distributed frame that system physical distributed logic is concentrated
Structure design enables the deployment of system to expand according to demand and dynamically.
Describe the processing data packets flow of distributed network virtualization system of the present invention in detail below according to Fig. 2.Step is such as
Under：
Step (21) changes ether frame format in network to realize the function of network virtualization, after ether frame head,
Six bit, i.e. virtual process identifications field are added before IP fields, for indicating virtual network information, wherein first three bit notes
Tenant's id information is recorded, rear three bit record virtual link id information.
When the virtual SDN of step (22) initializes, distributed network virtualization system can issue specific flow table to net
Each physical switches in network, using the flow table, virtual network field of the physical switches in the packet received is true
Determine the virtual SDN belonging to it.
Step (23) can judge whether the packet comes from main frame after physical switches receive packet, such as
Fruit is that then the packet is jumped to the processing of other flow tables by exchange opportunity, and the flow table for such as transferring to tenant to pre-define goes to handle,
If it is not, then the interchanger first leaves out virtual process identifications, the packet is reprocessed afterwards, i.e., the packet jumps to other streams
List processing, the flow table for such as transferring to tenant to pre-define go to handle.
When packet needs interchanger, exchange opportunity first determines whether to forward whether purpose is main frame step (24), i.e.,
Whether next-hop is main frame, if it is, as handled the packet in previous step, will the packet transfer to tenant advance
The flow table defined goes to handle；If it is not, then need to add corresponding virtual process identifications in the packet.
Describe the read-write flow of the network state of the invention distributed network virtualization system of the invention in detail with reference to Fig. 3.
Step is as follows：
For step (31) when network state changes, system can be according to the distributed collection of consistency protocol Raft synchronized updates
The network state of all distributed network virtualization system storages, saves it in and data storage is carried out in nucleus module in group.
For step (32) after the write operation in step (31) is completed, distributed network virtualization system can be by core mould
The network state preserved in block is updated in local cache so that it is consistent with the network state in step 1.
When needing the network state of reading system storage, the data in directly quick reading local cache are step (33)
Can.
Describe the process of the active-standby switch of invention distributed network virtualization system of the present invention in detail with reference to Fig. 4.Step is such as
Under：
The i.e. main NVH of NVH system that step (41) role is master and the i.e. standby NVH of the NVH system that role is slave pass through
Heartbeat packet more new state, the interchanger collection switch status information in main NVH adapters physical network, and updated mutually
NVH clusters, main NVH are also responsible for the Packet_in message of processing switch and issue flow table to interchanger etc. operating.Step (42)
After main NVH delays machine, standby NVH has found its off-line state by heartbeat packet, standby NVH in select a main NVH system, and
And replied by issuing Role message (Role_request message) to interchanger in physical network and desampler
Role message (Role_reply message) is come the interchanger in adapter physical network.
Claims (4)
- A kind of 1. distributed network virtualization system of SDN, it is characterised in that including：SDN south orientation protocol modules, the module can realize SDN south orientation agreements, for being responsible for and the agreement in bottom physical network Communication between unaware forwarding interchanger, obtains network state and is uploaded to core layer module；Nucleus module, storage management of the module by distributed protocol Raft realizations to bottom physical network data, and Realized between different network virtualization systems synchronous；Virtualization layer module, the module are used to realize network virtualization, and network virtualization includes agreement unaware forwarding interchanger Virtualization, network link virtualization, flow table space virtualization etc.；Tenant's application module, the module are application module, pass in and out the message of the module by virtualization layer module according to different rents Family is mapped to different network virtualization systems.
- 2. the distributed network virtualization system of SDN according to claim 1, it is characterised in that the core mould Block also includes network topology and network equipment module, flow table module and virtual network module；Wherein, the network topology and network EM equipment module is used for agreement unaware forwarding interchanger and the data message of network topology in Treated Base physical network；It is described Flow table module is used for the generation of processing protocol unaware forwarding flow table and is issued to the operation of agreement unaware forwarding interchanger, The agreement unaware forwarding interchanger in bottom physical network is enabled to receive flow table and according to flow table information realization data Forwarding operation；The virtual network module is responsible for realizing the virtualization of virtual SDN.
- 3. the distributed network virtualization system of SDN according to claim 1, it is characterised in that the virtualization Layer module includes micro services module, virtualizes and go virtualization modules；Wherein, the micro services module is used for each tenant to it The virtual SDN possessed defines different services；The virtualization is with going virtualization modules, for by bottom physical network In agreement unaware forwarding interchanger be returned to the message of virtualization layer service and carry out virtualization operations, and for according to void Intend the mapping relations of network and bottom physical network, agreement unaware top service being sent in bottom physical network forwards The message of interchanger carries out virtualization operations.
- 4. the distributed network virtualization system of SDN according to claim 1, it is characterised in that the storage tube Reason uses local cache mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711008118.9A CN107528743B (en) | 2017-10-25 | 2017-10-25 | A kind of distributed network virtualization system of SDN network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711008118.9A CN107528743B (en) | 2017-10-25 | 2017-10-25 | A kind of distributed network virtualization system of SDN network |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107528743A true CN107528743A (en) | 2017-12-29 |
| CN107528743B CN107528743B (en) | 2019-10-25 |
Family
ID=60685398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711008118.9A Active CN107528743B (en) | 2017-10-25 | 2017-10-25 | A kind of distributed network virtualization system of SDN network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107528743B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113285838A (en) * | 2021-05-28 | 2021-08-20 | 之江实验室 | Heterogeneous identification network model and data packet based on POF and method for managing heterogeneous identification network |
| CN114448900A (en) * | 2022-04-02 | 2022-05-06 | 南京邮电大学 | SDN controller interaction method and system based on extended raft algorithm |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104917630A (en) * | 2015-04-15 | 2015-09-16 | 深圳市深信服电子科技有限公司 | Method for recovering virtual network and system for recovering virtual network |
| CN105227344A (en) * | 2015-08-21 | 2016-01-06 | 武汉烽火网络有限责任公司 | Based on software defined network analogue system and the method for OpenStack |
| CN106027626A (en) * | 2016-05-12 | 2016-10-12 | 赛特斯信息科技股份有限公司 | SDN-based system for realizing virtualization data center |
| WO2017054439A1 (en) * | 2015-09-30 | 2017-04-06 | 华为技术有限公司 | Message processing method and device |
| US20170155744A1 (en) * | 2015-11-26 | 2017-06-01 | Institute For Information Industry | Network packet management server, network packet management method and computer readable medium thereof |
| CN107222353A (en) * | 2017-07-11 | 2017-09-29 | 中国科学技术大学 | The unrelated software defined network virtual management platform of supported protocol |
| CN107276916A (en) * | 2017-06-22 | 2017-10-20 | 中国科学技术大学 | Interchanger flow table management method based on agreement unaware retransmission technique |
-
2017
- 2017-10-25 CN CN201711008118.9A patent/CN107528743B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104917630A (en) * | 2015-04-15 | 2015-09-16 | 深圳市深信服电子科技有限公司 | Method for recovering virtual network and system for recovering virtual network |
| CN105227344A (en) * | 2015-08-21 | 2016-01-06 | 武汉烽火网络有限责任公司 | Based on software defined network analogue system and the method for OpenStack |
| WO2017054439A1 (en) * | 2015-09-30 | 2017-04-06 | 华为技术有限公司 | Message processing method and device |
| US20170155744A1 (en) * | 2015-11-26 | 2017-06-01 | Institute For Information Industry | Network packet management server, network packet management method and computer readable medium thereof |
| CN106027626A (en) * | 2016-05-12 | 2016-10-12 | 赛特斯信息科技股份有限公司 | SDN-based system for realizing virtualization data center |
| CN107276916A (en) * | 2017-06-22 | 2017-10-20 | 中国科学技术大学 | Interchanger flow table management method based on agreement unaware retransmission technique |
| CN107222353A (en) * | 2017-07-11 | 2017-09-29 | 中国科学技术大学 | The unrelated software defined network virtual management platform of supported protocol |
Non-Patent Citations (2)
| Title |
|---|
| DAOYUN HU等: "Protocol Oblivious Forwarding: Software-Defined Networking with Enhanced Programmability", 《IEEE NETWORK 》 * |
| SHENGRU LI等: "SR-PVX: A Source Routing Based Network Virtualization Hypervisor to Enable POF-FIS Programmability in vSDNs", 《IEEE ACCESS》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113285838A (en) * | 2021-05-28 | 2021-08-20 | 之江实验室 | Heterogeneous identification network model and data packet based on POF and method for managing heterogeneous identification network |
| CN113285838B (en) * | 2021-05-28 | 2022-08-05 | 之江实验室 | Heterogeneous identification network model and data packet based on POF and method for managing heterogeneous identification network |
| CN114448900A (en) * | 2022-04-02 | 2022-05-06 | 南京邮电大学 | SDN controller interaction method and system based on extended raft algorithm |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107528743B (en) | 2019-10-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104158747B (en) | Method for discovering network topology and system | |
| CN101820358B (en) | High availability and multipathing for fibre channel over Ethernet | |
| CN104618207B (en) | The FC-AE-1553 network systems and exchange method of a kind of heterogeneous | |
| EP2888858B1 (en) | Method and apparatus of generalized network controller for a software defined network (sdn) | |
| CN102843286B (en) | Implementation method, and system of virtual routers | |
| CN104426680B (en) | Data transmission method, device and system | |
| CN105847157B (en) | Communication means end to end between mark network based on SDN | |
| CN105245632A (en) | Communication method between hosts in different network segments in SDN network | |
| CN108632067A (en) | Disaster tolerance dispositions method, apparatus and system | |
| CN108011732A (en) | Method, controller and the system of configuration service resource | |
| CN105812217A (en) | Virtual network division method and multi-controller agent device | |
| CN107211036A (en) | A kind of method and data center network of data center network networking | |
| CN107528743B (en) | A kind of distributed network virtualization system of SDN network | |
| CN108737169A (en) | A kind of isomery industrial network central fusion management method based on SDN | |
| CN106899478A (en) | The method that power test business realizes resource resilient expansion by cloud platform | |
| CN107682411A (en) | A kind of extensive SDN controllers cluster and network system | |
| CN102801598B (en) | Method and device for constructing virtual switching system, and switching devices | |
| CN109739622A (en) | Active and standby master control configuration and synchronization method and device based on frame type equipment | |
| TW201347466A (en) | Connecting method for virtual machine in cloud system | |
| CN101369934B (en) | Network analogue method and system | |
| CN108574583A (en) | A kind of device updating method and access device | |
| KR100846630B1 (en) | A method for providing point-to-point service in resilient packet ring | |
| CN105245447A (en) | Device and method for supporting ECMP (Equal Cost Multipath) chip on ToR in data centre | |
| CN110535764B (en) | Method for realizing spatial information network large-scale link simulator | |
| CN111756596A (en) | SDN-based link quality detection system and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |