CN107682410A - A kind of control method and device of distributed SDN controllers cluster - Google Patents
A kind of control method and device of distributed SDN controllers cluster Download PDFInfo
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- CN107682410A CN107682410A CN201710827110.9A CN201710827110A CN107682410A CN 107682410 A CN107682410 A CN 107682410A CN 201710827110 A CN201710827110 A CN 201710827110A CN 107682410 A CN107682410 A CN 107682410A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1001—Protocols in which an application is distributed across nodes in the network for accessing one among a plurality of replicated servers
- H04L67/1029—Protocols in which an application is distributed across nodes in the network for accessing one among a plurality of replicated servers using data related to the state of servers by a load balancer
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1001—Protocols in which an application is distributed across nodes in the network for accessing one among a plurality of replicated servers
- H04L67/1004—Server selection for load balancing
- H04L67/1008—Server selection for load balancing based on parameters of servers, e.g. available memory or workload
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Abstract
The invention discloses a kind of control method and device of distributed SDN controllers cluster, belong to communication technical field.For solving the problem of due to data sharing between controller, easily causing data redundancy, causing controller to be unable to equality communication between not same area.This method includes：The first flow table information request that first area controller is sent is received, the first flow table information request is sent to the first SDN controllers with minimum load in the SDN controllers of center；Receive the identifier of the second area controller of the first SDN controllers transmission, the present load amount of second area controller is respectively less than the present load amount of multiple zone controllers of Oracle cluster database server memory storage, and second area controller present load amount can handle first area information corresponding with the first flow table information request；The identifier of second area controller is sent to first area controller, the first area information for receiving first area controller feedback is sent to second area controller.
Description
Technical field
The present invention relates to communication technical field, more particularly relates to a kind of control method of distributed SDN controllers cluster
And device.
Background technology
(English is software defined network：Software Defined Network, English abbreviation：SDN appearance) is pair
The innovation of traditional network architecture.Three layers are broadly divided into based on open protocol SDN frameworks：Application layer, controller layer and mechanical floor.Control
Device layer processed is responsible for logical process and issues decision-making, and mechanical floor is only responsible for data forwarding so as to realize loose coupling framework.In medium and small rule
In the network of mould, Single Controller can meet corresponding control function.But in large scale network, due to single control
There is the problem of single-point timeliness in device, influence the normal use of network.Therefore, catenet often uses SDN controller cluster skills
Art.
The data storage that SDN controllers send over interchanger and application layer at present is in internal database.But
During large-scale SDN controller cluster scene colors, due to that can be shared between the data between each controller, easily cause a large amount of
Redundancy.The operator for possessing different economic entities may be belonged to reference to different controller area, controller can not be accomplished in difference
Equality communication between domain.
In summary, easily caused in existing SDN controllers cluster control method due to data sharing between controller
Data redundancy, controller is caused to be unable to the problem of equality communicates between not same area.
The content of the invention
The embodiment of the present invention provides a kind of control method and device of distributed SDN controllers cluster, to solve due to
Data sharing between controller, easily causes data redundancy, causes controller to be unable to the problem of equality communicates between not same area.
The embodiment of the present invention provides a kind of control method of distributed SDN controllers cluster, including：
Receive the first flow table information request that first area controller is sent, by the first flow table information request send to
There is the first SDN controllers of minimum load in the SDN controllers of center；
Receive the identifier for the second area controller that the first SDN controllers are sent, the second area controller
Present load amount be respectively less than Oracle cluster database server memory storage multiple zone controllers present load amount, and described
Two zone controller present load amounts can handle first area information corresponding with the first flow table information request；
The identifier of the second area controller is sent to the first area controller, the first area will be received
The first area information of controller feedback is sent to the second area controller.
Preferably, the load of the first SDN controllers includes following one or more kinds of combinations：
The quantity of first SDN controllers processing；The server utilization of the first SDN controllers；The first SDN controls
The memory usage of device processed；
By the first flow table information request send to the SDN controllers in the SDN controllers of center with minimum load it
Before, in addition to：
The load of multiple SDN controllers to including in the center SDN controllers counts, from multiple SDN
First SDN controller of the selection with minimum load in controller.
Preferably, comprise at least in the first area controller master server SDN controllers and one from clothes
The SDN controllers of business device；
The SDN controllers of first master server are connected respectively with the multiple switch in first area；
The SDN controllers of the master server between heartbeat mechanism and the SDN controllers from server by carrying out
Trouble shooting, if the SDN controllers of master server break down, switching signal is sent from the SDN controllers of server, respectively
It is attached with the multiple switch in first area.
Preferably, the SDN controllers of two master servers are included in the first area controller；
The SDN controllers of two master servers are connected respectively with the multiple switch in first area respectively.
The embodiment of the present invention also provides a kind of control device of distributed SDN controllers cluster, including：
First transmitting element, the first flow table information request sent for receiving first area controller, by described first
Flow table information request is sent to the first SDN controllers with minimum load in the SDN controllers of center；
Receiving unit, the identifier of the second area controller sent for receiving the first SDN controllers, described the
The present load amount of two zone controllers is respectively less than the current negative of multiple zone controllers of Oracle cluster database server memory storage
Carrying capacity, and the second area controller present load amount can handle first area corresponding with the first flow table information request
Information；
Second transmitting element, for sending the identifier of the second area controller to the first area controller,
The first area information for receiving the first area controller feedback is sent to the second area controller.
Preferably, the load of the first SDN controllers includes following one or more kinds of combinations：
The quantity of first SDN controllers processing；The server utilization of the first SDN controllers；The first SDN controls
The memory usage of device processed；
First transmitting element is additionally operable to：
The load of multiple SDN controllers to including in the center SDN controllers counts, from multiple SDN
First SDN controller of the selection with minimum load in controller.
Preferably, comprise at least in the first area controller master server SDN controllers and one from clothes
The SDN controllers of business device；
The SDN controllers of first master server are connected respectively with the multiple switch in first area；
The SDN controllers of the master server between heartbeat mechanism and the SDN controllers from server by carrying out
Trouble shooting, if the SDN controllers of master server break down, switching signal is sent from the SDN controllers of server, respectively
It is attached with the multiple switch in first area.
Preferably, the SDN controllers of two master servers are included in the first area controller；
The SDN controllers of two master servers are connected respectively with the multiple switch in first area respectively.
In the embodiment of the present invention, there is provided a kind of control method of distributed SDN controllers cluster, including：Receive first
The first flow table information request that zone controller is sent, the first flow table information request is sent to the SDN controllers of center
The first SDN controllers with minimum load；Receive the mark for the second area controller that the first SDN controllers are sent
Symbol, the present load amount of the second area controller are respectively less than multiple zone controllers of Oracle cluster database server memory storage
Present load amount, and the second area controller present load amount can handle it is corresponding with the first flow table information request
First area information；The identifier of the second area controller is sent to the first area controller, described the will be received
The first area information of one zone controller feedback is sent to the second area controller.In the above method, using negative
The first flow table information request that balanced device is sent to center SDN controllers forwarding first area controller is carried, is controlled by center SDN
Device processed determines the minimum second area controller of present load amount out of database server, and by the mark of second area controller
Know symbol and be forwarded to first area controller, so that first area controller sends first area information to second area controller
It is interior.While the communication issue between solving different zones, solves regional controller data share presence redundancy
Problem, further, solve center SDN controllers it is possible that load too high is asked using the forwarding of SDN load equalizers
Topic.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of control method schematic flow sheet of distributed SDN controllers cluster provided in an embodiment of the present invention；
Fig. 2 is a kind of distributed SDN controllers aggregated structure structural representation provided in an embodiment of the present invention；
Fig. 3 is a kind of controling device structure diagram of distributed SDN controllers cluster provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
The control method for showing a kind of distributed SDN controllers cluster provided in an embodiment of the present invention exemplary Fig. 1
Schematic flow sheet, Fig. 2 are a kind of distributed SDN controllers aggregated structure structural representation provided in an embodiment of the present invention.Below
With reference to Fig. 1 and Fig. 2, to introduce a kind of control method of distributed SDN controllers cluster provided in an embodiment of the present invention.
As shown in figure 1, a kind of control method of distributed SDN controllers cluster provided in an embodiment of the present invention is including following
Step：
Step 101, the first flow table information request that first area controller is sent is received, please by the first flow table information
Ask and send to the first SDN controllers with minimum load in the SDN controllers of center；
Step 102, the identifier for the second area controller that the first SDN controllers are sent, secondth area are received
The present load amount of domain controller is respectively less than the present load amount of multiple zone controllers of Oracle cluster database server memory storage,
And the second area controller present load amount can handle first area information corresponding with the first flow table information request；
Step 103, the identifier of the second area controller is sent to the first area controller, will be received described
The first area information of first area controller feedback is sent to the second area controller.
It should be noted that in embodiments of the present invention, when cross-domain be present, i.e., the database of first area is only
The information of one's respective area is preserved, does not preserve the flow table information of second area, the interchanger in first area sends out flow table information
Deliver to second area.
In a step 101, in the first region, the SDN controllers of a master server can be included in zone controller
With a SDN controller from server.Wherein, the SDN controllers of master server multiple exchange with what is included in region respectively
Machine connects；Further, the SDN controllers of master server are carried out by heartbeat mechanism and between the SDN controllers of server
Fault detect, when the SDN controllers of master server break down, from the SDN controllers of server then can to master server
Multiple exchangers of SDN controllers connection send switching signal, and establish and connect with above-mentioned multiple exchangers.
It should be noted that in embodiments of the present invention, the SDN of two master servers can also be included in zone controller
The SDN controllers of controller, respectively the first master server and the SDN controllers of the second master server.Wherein, the first main service
The SDN controllers of device and the SDN controllers of the second master server are respectively connected with the multiple switch included in region；Enter one
Step ground, failure is carried out between the SDN controllers of the first master server and the SDN controllers of the second master server by heartbeat mechanism
Detection, when the SDN controllers of first master server in the SDN controllers of two master servers break down, the second master
The SDN controllers of server can send switching signal, so that multiple switch and the interruption of the SDN controllers of the first master server
Connection is opened, so as to ensure connection that multiple switch can also smoothly between the SDN controllers of the second master server.
When the first area controller of first area can not handle the information in first area, first area controller meeting
Solicited message is sent to load-balanced server, wherein, the request that first area controller is sent to load equalizer server
Information is the first flow table information request.
For example, as shown in Fig. 2 region 1 and region 2 are respectively two independent regions, in zone 1, include
SDN controller A database server A and SDN controllers A+Database server A+, wherein, SDN controller A database servers
A is equivalent to the SDN controllers of master server, SDN controllers A+Database server A+Equivalent to the SDN controllers from server.
In the region, multiple switch and the active and standby SDN controllers being arranged in SDN controller A database servers A pass through
Openflow agreements or Netconf agreements etc. are attached, under normal circumstances, only SDN controllers A database servers A
Externally serviced, i.e., only SDN controllers A database servers A is only attached and interacted with interchanger, and SDN is controlled
Device A+Database server A+And get along well above-mentioned multiple switch connection and interaction.Further, SDN controllers A database services
Device A and SDN controller A+Database server A+Between establish connection, SDN controller A database servers A passes through heartbeat mechanism
To SDN controllers A+Database server A+The situation of itself is reported, such as, time of setting is spaced to SDN controllers A+Data
Storehouse server A+Send the signal of a setting.When SDN controllers A database servers A does not have within the interval time of setting
To SDN controllers A+Database server A+The signal of setting is sent, then SDN controllers A+Database server A+Confirm SDN controls
Device A database servers A processed breaks down, SDN controllers A+Database server A+Actively it can occur to above-mentioned multiple switch
Switching signal, and established a connection between above-mentioned multiple switch.
It should be noted that include two load balancing services in embodiments of the present invention, in load-balanced server
Device, such as：First load-balanced server and the second load-balanced server.In actual applications, the first load balancing service
Device and the second load-balanced server can be a master server and a standby server respectively, can also be both main clothes
Business device.For example, when the first load-balanced server is master server, and the second load-balanced server is standby server,
First load-balanced server is connected with first area and second area respectively, the first load equalizer and the second load equalizer
Between pass through heartbeat mechanism carry out fault detect, when the first load-balanced server breaks down, the second load balancing service
Device can then send switching signal to the first area and second area being connected with the first load-balanced server, and with it is above-mentioned multiple
Connection is established in region.When the first load-balanced server and the second load-balanced server are all master servers, the first load
Equalization server is connected with first area and second area respectively, the second load-balanced server respectively with first area and second
Region connects；Further, carried out between the first load-balanced server and the second load-balanced server by heartbeat mechanism
Fault detect, when the first load-balanced server in two load-balanced servers breaks down, the second load balancing clothes
Business device can send switching signal, so as to disconnected between first area and second area and the first load-balanced server, from
And it may insure the connection that first area and second area can also smoothly between the second load-balanced server.
In this clearly demarcated embodiment, the first load-balanced server receives the first flow table letter that first area controller is sent
After breath request, the first load-balanced server uses SDN load balancing reflecting softwares, and from center, SDN controllers include multiple
The first SDN controllers with minimum load are selected in SDN controllers, and the first flow table information request is sent to first
SDN controllers.
In actual applications, the load of the first SDN controllers includes following one or more kinds of combinations：First SDN is controlled
The quantity of device processing, the server utilization of the first SDN controllers and the memory usage of the first SDN controllers.
Specifically, the SDN load balancing reflecting softwares that the first load-balanced server uses are minimum based on dynamic weighting
Determined based on join algorithm.
In embodiments of the present invention, the first load-balanced server is controlled using SDN load balancing reflecting software to center SDN
The load of the multiple SDN controllers included in device processed is counted, and selection is with minimum from multiple SDN controllers counted
The SDN controllers of load are as the first SDN controllers, to receive the first flow table information request.
In a step 102, the first SDN controllers receive the first flow table information request of the first load-balanced server transmission
Afterwards, the first SDN controllers can pair Oracle cluster database server being connected with the first SDN carry out information inquiry, determine cluster number
According to the current load capacity of multiple zone controllers of storehouse server memory storage, select currently to have most out of multiple zone controllers
The second area controller of small load capacity, and the present load amount of second area controller can be handled and the first flow table information request
Corresponding first area information.
, can be by second area control after first SDN determines selection second area controller out of Oracle cluster database server
The identifier of device processed is sent to the first load-balanced server.
As shown in Fig. 2 including load-balanced server 1 and load-balanced server 2 in load-balanced server, load
Equalization server 1 and region 1 connect, and load-balanced server 2 and region 2 connect；Load-balanced server 1 and load balancing clothes
Connected between business device 2 by heartbeat mechanism.Connect between load-balanced server and logically and physically center SDN controllers cluster
Connect.It should be noted that the logically and physically center SDN controllers cluster in Fig. 2 is equivalent to the center in the embodiment of the present invention
SDN controllers.Logically and physically include multiple SDN controllers in center SDN controllers cluster, and multiple SDN controllers it
Between have annexation.
In step 103, the first load-balanced server receives the second area controller of the first SDN controllers transmission
After identifier, the identifier of second area controller is fed back into first area controller, first area controller can basis
The identifier of the second area controller received, obtain and the first flow table information request pair in the interchanger out of first area
The first area information answered, and first area information is transmitted to the first load-balanced server, the first load-balanced server
The first area information received is sent to the second area control of second area.
As shown in Fig. 2 load-balanced server 1 receive the first SDN controllers transmission the controller of region 2 identifier it
Afterwards, load-balanced server 1 sends the identifier of the controller of region 2 to the SDN controller A database server A in region 1,
SDN controller A database servers A obtains first area information out of interchanger, and by first area information send again to
First area information is sent to region 2 and controlled by load-balanced server 1, load-balanced server 1 by load-balanced server 2
Device processed.
By the above method, can solve the communication issue between different zones in the prior art, when some region
When SDN controllers can not solve the area information of current region, can by load-balanced server, center SDN controllers with
And Oracle cluster database server, according to the present load amount in current multiple regions, it is determined that the region letter in other regions can be solved
One region of breath, and the area information in regional is forwarded by load-balanced server, on the one hand solve existing
The problem of center SDN controller load too high, on the other hand solving data sharing between current regional, data occur superfluous
Remaining situation.
Based on same inventive concept, the embodiments of the invention provide a kind of control device of distributed SDN controllers cluster,
It is similar to a kind of control method of distributed SDN controllers cluster to solve the principle of technical problem due to the device, therefore the dress
The implementation put may refer to the implementation of method, repeats part and repeats no more.
Fig. 3 is a kind of controling device structure diagram of distributed SDN controllers cluster provided in an embodiment of the present invention, such as
Shown in Fig. 3, the device includes：First transmitting element 301, the transmitting element 303 of receiving unit 302 and second.
First transmitting element 301, the first flow table information request sent for receiving first area controller, by described the
One flow table information request is sent to the first SDN controllers with minimum load in the SDN controllers of center；
Receiving unit 302, the identifier of the second area controller sent for receiving the first SDN controllers, institute
State second area controller present load amount be respectively less than Oracle cluster database server memory storage multiple zone controllers work as
Preceding load capacity, and the second area controller present load amount can be handled and the first flow table information request corresponding first
Area information；
Second transmitting element 303, for sending the mark of the second area controller to the first area controller
Symbol, the first area information for receiving the first area controller feedback is sent to the second area controller.
Preferably, the load of the first SDN controllers includes following one or more kinds of combinations：
The quantity of first SDN controllers processing；The server utilization of the first SDN controllers；The first SDN controls
The memory usage of device processed；
First transmitting element 301 is additionally operable to：
The load of multiple SDN controllers to including in the center SDN controllers counts, from multiple SDN
First SDN controller of the selection with minimum load in controller.
Preferably, comprise at least in the first area controller master server SDN controllers and one from clothes
The SDN controllers of business device；
The SDN controllers of first master server are connected respectively with the multiple switch in first area；
The SDN controllers of the master server between heartbeat mechanism and the SDN controllers from server by carrying out
Trouble shooting, if the SDN controllers of master server break down, switching signal is sent from the SDN controllers of server, respectively
It is attached with the multiple switch in first area.
Preferably, the SDN controllers of two master servers are included in the first area controller；
The SDN controllers of two master servers are connected respectively with the multiple switch in first area respectively.
It should be appreciated that the unit that includes of the control device of one of the above distribution SDN controller clusters only according to this set
The logical partitioning that the function that standby device is realized is carried out, in practical application, the superposition or fractionation of said units can be carried out.And should
The function that a kind of control device for distributed SDN controllers cluster that embodiment provides is realized and the one of above-described embodiment offer
The control method of the distributed SDN controllers cluster of kind corresponds, the more detailed handling process realized for the device,
It has been described in detail in above method embodiment one, has been not described in detail herein.
It should be understood by those skilled in the art that, embodiments of the invention can be provided as method, system or computer program
Product.Therefore, the present invention can use the reality in terms of complete hardware embodiment, complete software embodiment or combination software and hardware
Apply the form of example.Moreover, the present invention can use the computer for wherein including computer usable program code in one or more
The computer program production that usable storage medium is implemented on (including but is not limited to magnetic disk storage, CD-ROM, optical memory etc.)
The form of product.
The present invention is the flow with reference to method according to embodiments of the present invention, equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that can be by every first-class in computer program instructions implementation process figure and/or block diagram
Journey and/or the flow in square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided
The processors of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce
A raw machine so that produced by the instruction of computer or the computing device of other programmable data processing devices for real
The device for the function of being specified in present one flow of flow chart or one square frame of multiple flows and/or block diagram or multiple square frames.
These computer program instructions, which may be alternatively stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory, which produces, to be included referring to
Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one square frame of block diagram or
The function of being specified in multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that counted
Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, so as in computer or
The instruction performed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in individual square frame or multiple square frames.
Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creation
Property concept, then can make other change and modification to these embodiments.So appended claims be intended to be construed to include it is excellent
Select embodiment and fall into having altered and changing for the scope of the invention.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (8)
- A kind of 1. control method of distributed SDN controllers cluster, it is characterised in that including：The first flow table information request that first area controller is sent is received, the first flow table information request is sent to center There is the first SDN controllers of minimum load in SDN controllers；The identifier for the second area controller that the first SDN controllers are sent is received, the second area controller is worked as Preceding load capacity is respectively less than the present load amount of multiple zone controllers of Oracle cluster database server memory storage, and secondth area Domain controller present load amount can handle first area information corresponding with the first flow table information request；The identifier of the second area controller is sent to the first area controller, the first area control will be received The first area information of device feedback is sent to the second area controller.
- 2. control method as claimed in claim 1, it is characterised in that the load of the first SDN controllers is included with next Kind or multiple combinations：The quantity of first SDN controllers processing；The server utilization of the first SDN controllers；The first SDN controllers Memory usage；The first flow table information request is sent to before the SDN controllers with minimum load in the SDN controllers of center, also Including：The load of multiple SDN controllers to including in the center SDN controllers counts, and is controlled from multiple SDN First SDN controller of the selection with minimum load in device.
- 3. control method as claimed in claim 1, it is characterised in that comprise at least a master in the first area controller The SDN controllers of server and a SDN controller from server；The SDN controllers of first master server are connected respectively with the multiple switch in first area；The SDN controllers of the master server are by carrying out failure between heartbeat mechanism and the SDN controllers from server Check, if the SDN controllers of master server break down, switching signal is sent from the SDN controllers of server, respectively with the Multiple switch in one region is attached.
- 4. control method as claimed in claim 1, it is characterised in that include two main services in the first area controller The SDN controllers of device；The SDN controllers of two master servers are connected respectively with the multiple switch in first area respectively.
- A kind of 5. control device of distributed SDN controllers cluster, it is characterised in that including：First transmitting element, the first flow table information request sent for receiving first area controller, by first flow table Information request is sent to the first SDN controllers with minimum load in the SDN controllers of center；Receiving unit, the identifier of the second area controller sent for receiving the first SDN controllers, secondth area The present load amount of domain controller is respectively less than the present load amount of multiple zone controllers of Oracle cluster database server memory storage, And the second area controller present load amount can handle first area information corresponding with the first flow table information request；Second transmitting element, for sending the identifier of the second area controller to the first area controller, it will receive The first area information to first area controller feedback is sent to the second area controller.
- 6. control device as claimed in claim 5, it is characterised in that the load of the first SDN controllers is included with next Kind or multiple combinations：The quantity of first SDN controllers processing；The server utilization of the first SDN controllers；The first SDN controllers Memory usage；First transmitting element is additionally operable to：The load of multiple SDN controllers to including in the center SDN controllers counts, and is controlled from multiple SDN First SDN controller of the selection with minimum load in device.
- 7. control device as claimed in claim 5, it is characterised in that comprise at least a master in the first area controller The SDN controllers of server and a SDN controller from server；The SDN controllers of first master server are connected respectively with the multiple switch in first area；The SDN controllers of the master server are by carrying out failure between heartbeat mechanism and the SDN controllers from server Check, if the SDN controllers of master server break down, switching signal is sent from the SDN controllers of server, respectively with the Multiple switch in one region is attached.
- 8. control device as claimed in claim 5, it is characterised in that include two main services in the first area controller The SDN controllers of device；The SDN controllers of two master servers are connected respectively with the multiple switch in first area respectively.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109905275A (en) * | 2019-01-28 | 2019-06-18 | 华南理工大学 | A kind of detection of control plane failure and processing method based on SDN layer architecture |
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