CN104579801B - A kind of dispatching method of software defined network controller cluster - Google Patents
A kind of dispatching method of software defined network controller cluster Download PDFInfo
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Abstract
The present invention relates to a kind of dispatching method of software defined network controller cluster, employ the scheme of controller cluster, load pressure can be shared to each controller node, avoid and all load pressures are concentrated to the problem of causing process performance relatively low to single controller node.Each controller node corresponding configuration portion Hash tables in cluster, each controller node only allows to change in the Hash tables that it possesses is responsible for the mark and its load factor of the interchanger of adapter by it, when each controller node have modified the data in the Hash tables that it possesses, the data syn-chronization that need to be changed accordingly updates the data in the Hash tables each possessed into other controller nodes, by other controller nodes；The present invention can determine that corresponding controller node takes over to interchanger according to the data in Hash tables, without introducing third party manager, whole cluster will not be caused to be limited to the performance of third party manager.
Description
Technical field
The present invention relates to network technique field, and in particular to a kind of dispatching method of software defined network controller cluster.
Background technology
At present, the scheduling scheme of software defined network (Software Defined Network, SDN) controller substantially wraps
Two kinds are included, a kind of is the scheduling scheme based on two-node cluster hot backup, and its framework by master controller node as shown in figure 1, usually be responsible for connecing
All interchangers are managed, when machine occurs delaying in master controller node, all interchangers are taken over by preparation controller node；Its shortcoming
It is that load pressure is all concentrated on single controller node, process performance is relatively low.
Another kind is the scheduling scheme that device cluster is controlled by third party manager, and its framework is as shown in Fig. 2 in institute
There is one third party manager of addition outside controller node, be responsible for dispatching all controller nodes in cluster；It is all
Controller node be all by the third party manager distribute interchanger taking over tasks；If controller node is delayed
Machine, third party manager will reschedule interchanger taking over tasks；Its shortcoming is if the machine of delaying, meeting shadow occurs in third party manager
The operation of overall network system is rung, simultaneously as the number of nodes upper limit of controller cluster is adjusted by the program of third party manager
Spend performance impact so that the performance of third party manager can be integrally formed the bottleneck of cluster.
The content of the invention
Scheduling scheme process performance of the invention for software defined network controller in the prior art is relatively low or is limited to
The technical problems such as the performance of third party manager, propose a kind of tune of the software defined network controller cluster with higher performance
Degree method.
Individually below based on synchrodata restorative procedure and load-balancing method to a kind of software definition proposed by the present invention
The dispatching method of network controller cluster is introduced.
1. it is based on synchrodata restorative procedure
A kind of dispatching method of software defined network controller cluster proposed by the present invention, the software defined network control
Device cluster includes some controller nodes；Each controller node accordingly possesses a Hash tables, the packet of every part of Hash table
Include：The identifying of each controller node, each controller node are responsible for the identifying of the interchanger of adapter, each controller node
Load factor；Wherein, each controller node only allows to change in the Hash tables that it possesses is responsible for the interchanger of adapter by it
Mark and its load factor；When each controller node have modified the data in the Hash tables that it possesses, it need to be changed
Data syn-chronization accordingly updates the data in the Hash tables each possessed into other controller nodes, by other controller nodes；
The dispatching method includes synchrodata restorative procedure, and the synchrodata restorative procedure includes：
The inquiry of this controller node is currently connected to the mark of the interchanger in this controller cluster；
Data in the Hash tables possessed according to this controller node, interchanger connects corresponding to the mark for judging to inquire
Pipe situation；
According to the adapter situation, it is determined whether perform Hash table data reparations；The Hash tables data reparation includes：It is right
Data in the Hash tables that this controller node is possessed are repaired, while the Hash tables possessed other controller nodes
In corresponding data synchronize reparation.
Preferably, the inquiry is currently connected to the mark of the interchanger in this controller cluster especially by openflow
Agreement is inquired about.
Preferably, it is described according to the adapter situation, it is determined whether performing the step of Hash tables data are repaired includes：
Data in the Hash tables possessed according to this controller node, judge the corresponding friendship of mark inquired described in adapter
The controller node quantity changed planes；
If the controller node quantity is equal to 1, Hash table data reparations are not performed.
Preferably, it is described according to the adapter situation, it is determined whether performing the step of Hash tables data are repaired also includes：
It is corresponding by the mark inquired described in the adapter of openflow agreements if the controller node quantity is equal to 0
Interchanger, and perform Hash table data reparations.
Preferably, it is described according to the adapter situation, it is determined whether performing the step of Hash tables data are repaired also includes：
If the controller node quantity, more than 1, the data in the Hash tables possessed according to this controller node are sentenced
Whether interchanger corresponding to the disconnected mark inquired is taken over by this controller node；Repaiied if so, then performing Hash table data
It is multiple.
2. it is based on synchronized loading equalization methods
A kind of dispatching method of software defined network controller cluster proposed by the present invention, the software defined network control
Device cluster includes some controller nodes；Each controller node accordingly possesses a Hash tables, the packet of every part of Hash table
Include：The identifying of each controller node, each controller node are responsible for the identifying of the interchanger of adapter, each controller node
Load factor；Wherein, each controller node only allows to change in the Hash tables that it possesses is responsible for the interchanger of adapter by it
Mark and its load factor；When each controller node have modified the data in the Hash tables that it possesses, it need to be changed
Data syn-chronization accordingly updates the data in the Hash tables each possessed into other controller nodes, by other controller nodes；
The dispatching method includes load-balancing method, and the load-balancing method includes：
Data in the Hash tables possessed according to this controller node, judge this controller node load state and other
The load state of controller node, accordingly perform the load balancing between this controller node and other controller nodes；
Preferably, the data in the Hash tables possessed according to this controller node, the negative of this controller node is judged
The load state of load situation and other controller nodes, accordingly perform negative between this controller node and other controller nodes
Carrying balanced specific steps includes：
Data in the Hash tables possessed according to this controller node, judge whether this controller node is in by calculating
Load idle condition；If in load idle condition, calculate this controller node and also need to take over how many interchangers and just reach
Load saturation state；
Judge other controller nodes whether in load busy state by calculating；If so, then calculate the controller section
Point also needs to abandon that how many interchanger can be only achieved load saturation state；
This controller node adapter controller node in load busy state needs the interchanger abandoned, until
This controller node reaches load saturation state.
Preferably, the load-balancing method judges the load state of controller node based on following calculation formula：
Load=(count/weights) * NodeWeigh
Wherein, Load is that corresponding controller node reaches the interchanger quantity taken over during load saturation；Count is this control
The total quantity of interchanger in device cluster processed；Weights is the summation of load factor corresponding to all controller nodes；
NodeWeigh is load factor corresponding to corresponding controller node；
If the exchanger quantity of controller node adapter is less than Load, judge that it is in load idle condition；If control
The exchanger quantity of device node adapter processed is more than Load, then judges that it is in load busy state；If controller node is taken over
Exchanger quantity be equal to Load, then judge that it is in load saturation state.
Preferably, the load-balancing method also includes：
Update in the Hash tables that this controller node possesses by its be responsible for adapter interchanger mark and its load because
Son, the data syn-chronization after being updated accordingly update what is each possessed into other controller nodes, by other controller nodes
Data in Hash tables.
Preferably, the dispatching method also includes controller node electoral machinery, the controller node electoral machinery bag
Include：
Each controller node obtains the mark for the interchanger that institute's election in need is taken over；
Data in the Hash tables possessed according to each controller node, controller node is elected to the mark pair that gets
The interchanger answered takes over.
Beneficial effect：The dispatching method of software defined network controller cluster proposed by the present invention, it is using control
The scheme of device cluster, load pressure can be shared to the scheduling for each controller node, avoiding prior art two-node cluster hot backup
All load pressures are concentrated to the problem of causing process performance relatively low to single controller node in scheme；
Meanwhile each controller node corresponding configuration portion Hash tables in cluster of the invention, and limit each control
Device node only allows to change in the Hash tables that it possesses is responsible for the mark and its load factor of the interchanger of adapter by it, each
When controller node have modified the data in the Hash tables that it possesses, the data syn-chronization that need to be changed to other controller nodes
In, accordingly update the data in the Hash tables each possessed by other controller nodes；Therefore, the present invention can be according to Hash tables
In data determine that corresponding controller node takes over to interchanger, without introducing third party manager, so not
Whole cluster can be caused to be limited to the performance of third party manager.
Based on the Hash tables, the present invention can realize the redundancy and load balancing between each controller node, significantly
Improve the performance and efficiency of whole cluster.
Brief description of the drawings
Fig. 1 is the configuration diagram of two-node cluster hot backup in the prior art.
Fig. 2 is the configuration diagram for being controlled device cluster by third party manager in the prior art.
Fig. 3 is a kind of framework signal of the dispatching method embodiment of software defined network controller cluster proposed by the present invention
Figure.
Fig. 4 be a kind of software defined network controller cluster proposed by the present invention dispatching method embodiment in synchrodata
The overall flow figure of restorative procedure.
Fig. 5 be a kind of software defined network controller cluster proposed by the present invention dispatching method embodiment in load balancing
The overall flow figure of method.
Embodiment
For the ease of it will be appreciated by those skilled in the art that being carried out below in conjunction with accompanying drawing and embodiment to the present invention further
Description.
The dispatching method embodiment of a kind of software defined network controller cluster proposed by the present invention, referring to Fig. 3, described
Software defined network controller cluster includes some controller nodes (controller node is at least more than 2)；Each controller
Node accordingly possesses a Hash tables, and the data of every part of Hash table include：The identifying of each controller node, each controller section
Point is responsible for the identifying of interchanger of adapter, the load factor of each controller node；Wherein, each controller node only allows to repair
Change in the Hash tables that it possesses and the mark and its load factor of the interchanger of adapter are responsible for by it；Each controller node modification
During data in its Hash table possessed, the data syn-chronization that need to be changed is into other controller nodes, by other controls
Device node accordingly updates the data in the Hash tables each possessed.
The form of Hash tables in the present embodiment is as shown in table 1：
Table 1
| The identification number of controller node | The mark of current adapter interchanger | Load factor |
| NodeId 1 | swId1 | 1 |
| NodeId Id 2 | SwId4、swId5、swId6 | 3 |
| NodeId Id 3 | swId7、swId8 | 2 |
| NodeId Id 4 | Empty | 0 |
| ... | ... | ... |
In table 1, NodeId 1 to NodeId Id 4 is the identification number of each controller node, and swId1 is mark sequence
Number mark of interchanger currently taken over for NodeId 1 controller node；Simultaneously it can be seen that in table 1, identification number is
The load factor (namely weight, be represented by weight) of NodeId 1 controller node is 1.
In the present embodiment, the form of the preferred adoption rate of load factor, in order to load balancing computing.For example, from table 1
As can be seen that current only 1 interchanger (swId1) of adapter of controller node that identification number is NodeId 1, its load factor
For 1；Controller node 3 interchangers (SwId4, swId5, swId6) of current adapter that identification number is NodeId 2, it is loaded
The factor is 3；Current 2 interchangers (swId7, swId8) of adapter of controller node that identification number is NodeId 3, its load because
Son is 2；The load factor of this three is 1：3：2.Meanwhile in order that the performance of whole cluster is preferable, the value of load factor is preferred
Control is within 1 to 10.
Other symbols being related in table 1 can carry out mutually should be understood that according to above-mentioned explanation.
Hash tables in the present embodiment can realize controller node election, synchrodata reparation and load in the cluster
The schemes such as equilibrium.
Wherein, the controller node electoral machinery mainly includes：Each controller node obtains institute's election in need and connect
The mark of the interchanger of pipe；Data in the Hash tables possessed according to each controller node, controller node is elected to obtaining
To mark corresponding to interchanger take over.
Data in the Hash tables that the controller node electoral machinery can specifically possess according to each controller node are sentenced
Break off a friendship to change planes to have and do not taken over and (if the mark of the interchanger is on the books in Hash tables, illustrate to be taken over), if not connect
Pipe, then the election datas of the Hash tables possessed according to each controller node go out it is more idle (the interchanger quantity currently taken over compared with
Controller node less) takes over.
The controller node electoral package is mainly used in two kinds of situations：First, when there is new interchanger to be connected to this
During cluster, each controller node in this cluster can receive response, receive each controller node of response and can run
The controller node selection algorithm；Second, when have controller node delay machine when, its take over interchanger need by electing quilt
Other normal controller node adapters, other normal controller nodes, which are based on controller node selection algorithm determination, is
It is no to take over.
The present embodiment introduces the scheme of synchrodata reparation and load balancing.
Under be based respectively on synchrodata restorative procedure and load-balancing method to a kind of software defined network proposed by the present invention
The dispatching method of network controller cluster is introduced.
1. it is based on synchrodata restorative procedure
Specifically, the dispatching method of software defined network controller cluster includes synchrodata reparation side in the present embodiment
Method, the synchrodata restorative procedure integrally include step S100 to step S300：
S100, the inquiry of this controller node are currently connected to the mark of the interchanger in this controller cluster；
Data in S200, the Hash tables possessed according to this controller node, exchange corresponding to the mark for judging to inquire
The adapter situation of machine；
S300, according to the adapter situation, it is determined whether perform Hash table data reparations；The Hash tables data reparation bag
Include：Data in the Hash tables possessed this controller node are repaired, while other controller nodes are possessed
Corresponding data synchronize reparation in Hash tables.
In order to which the purpose of the present embodiment is better achieved, further optimization is done to the controller node electoral machinery below
And it is discussed in detail.
The mark that the inquiry is currently connected to the interchanger in this controller cluster specifically can be by openflow agreements
Inquired about.
In the present embodiment, step S300 is based primarily upon the controller section of interchanger corresponding to the mark inquired described in adapter
Point quantity, to determine whether to perform Hash table data reparations, the controller node quantity is divided into equal to 1, equal to 0, more than 1 three
Kind situation.Specifically, step S300 comprises the following steps S310 to step S340：
Data in S310, the Hash tables possessed according to this controller node, judge the mark pair inquired described in adapter
The controller node quantity for the interchanger answered；
If S320, the controller node quantity are equal to 1, Hash table data reparations are not performed；
If S330, the controller node quantity are equal to 0, pass through the mark inquired described in the adapter of openflow agreements
Corresponding interchanger, and perform Hash table data reparations；
If S340, the controller node quantity are more than 1, the number in the Hash tables possessed according to this controller node
It is judged that whether interchanger corresponding to the mark inquired is taken over by this controller node；If so, then perform Hash table numbers
According to reparation.
Overall flow after above step S100 to step S340 is integrated refers to Fig. 4.
In the synchrodata restorative procedure of the present embodiment, each controller node can be looked into by openflow agreements
Ask the mark for all interchangers being currently connected in this cluster.By traveling through local (this controller node) Hash tables, inquiry
One interchanger is taken over by how many individual controller nodes, and if an only controller node adapter, illustrate to interchanger
In normal condition；If taking over the interchanger without controller node, this controller node will be assisted by openflow in time
The packet that view sends request adapter takes over the interchanger, and notifies to give other controller nodes.If two or two with
On controller node taken over the interchanger, illustrate wherein one or more controller nodes data exist it is abnormal；Such as
This controller node of fruit is included in, and this controller node needs to send Query Information by openflow agreements, repaiies in time
Data that are multiple or updating Hash tables on this controller node, while counted accordingly in the Hash tables that are possessed of other controller nodes
Repair or update according to synchronizing.
2. it is based on load-balancing method
Specifically, the dispatching method of software defined network controller cluster includes load-balancing method, institute in the present embodiment
Stating load-balancing method integrally includes step S400：
Data in S400, the Hash tables possessed according to this controller node, judge the load state of this controller node
With the load state of other controller nodes, the load accordingly performed between this controller node and other controller nodes is equal
Weighing apparatus；
In the preferred scheme of the present embodiment, the step S400 specifically includes step S410 to step S430：
Data in S410, the Hash tables possessed according to this controller node, judge that this controller node is by calculating
It is no to be in load idle condition；If in load idle condition, calculate this controller node also needs to that how many interchanger taken over
Just reach load saturation state；
S420, by calculate judge other controller nodes whether in load busy state；If so, then calculate the control
Device node also needs to abandon that how many interchanger can be only achieved load saturation state；
S430, this controller node adapter controller node in load busy state need the exchange abandoned
Machine, until this controller node reaches load saturation state.
In the present embodiment, the load-balancing method judges the load state of controller node based on following calculation formula：
Load=(count/weights) * NodeWeigh
Wherein, Load is that corresponding controller node reaches the interchanger quantity taken over during load saturation；Count is this control
The total quantity of interchanger in device cluster processed；Weights is the summation of load factor corresponding to all controller nodes；
NodeWeigh is load factor corresponding to corresponding controller node；
If the exchanger quantity of controller node adapter is less than Load, judge that it is in load idle condition；If control
The exchanger quantity of device node adapter processed is more than Load, then judges that it is in load busy state；If controller node is taken over
Exchanger quantity be equal to Load, then judge that it is in load saturation state.
In the preferred scheme of the present embodiment, the load-balancing method also includes step S500：
S500, update in the Hash tables that this controller node possesses by its be responsible for adapter interchanger mark and its bear
The factor is carried, the data syn-chronization after being updated is into other controller nodes, and accordingly renewal is each gathered around by other controller nodes
Data in some Hash tables.
Certainly, step S500 can not also be performed in the present embodiment load-balancing method, because the present embodiment operation is foregoing
, can be to reach the step S500 purposes to be reached after synchrodata restorative procedure.
Overall flow after above step S410 to step S500 is integrated refers to Fig. 5.
In the load-balancing method of the present embodiment, whether each controller node, which regularly itself can be in, loads idle shape
State, if in load idle condition, continue calculating and also need to take over how many individual interchangers to can be only achieved load saturation state,
Then whether remove to calculate other controller nodes again in load busy state, if other controller nodes are numerous in loading
Busy, it needs to abandon one or more interchangers to make itself to be within load saturation state, (load idle condition) this control
(this controller node first takes over the friendship to the interchanger that the busy controller node needs of device node meeting active takeover load processed are abandoned
Change planes, reinform former controller node and abandon adapter to the interchanger), until load saturation state.Here adapter work
The data in the Hash tables that this controller node possesses can not be updated, the work updated the data can be in synchrodata reparation side
Completed in method.
In summary, the dispatching method for a kind of software defined network controller cluster that the present embodiment proposes, due to using
Be controller cluster scheme, load pressure can be shared to each controller node, avoid prior art dual-locomotive heat
All load pressures are concentrated to the problem of causing process performance relatively low to single controller node in standby scheduling scheme.This implementation
Each controller node corresponding configuration portion Hash tables in the cluster of example, and limit each controller node and only allow to change it
The mark and its load factor of the interchanger of adapter are responsible for by it in the Hash tables possessed, each controller node have modified it
During data in the Hash tables possessed, the data syn-chronization that need to be changed is into other controller nodes, by other controller sections
Point accordingly updates the data in the Hash tables each possessed；Therefore, the present embodiment can determine phase according to the data in Hash tables
The controller node answered takes over to interchanger, without introducing third party manager, so whole cluster will not be caused
The performance of third party manager is limited to, thus greatly improves the efficiency and performance of overall cluster.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (7)
1. a kind of dispatching method of software defined network controller cluster, the software defined network controller cluster includes some
Controller node；Characterized in that, each controller node accordingly possesses a Hash tables, the data of every part of Hash table include：
The identifying of each controller node, each controller node be responsible for the identifying of the interchanger of adapter, each controller node it is negative
Carry the factor；Wherein, each controller node only allows to change in the Hash tables that it possesses is responsible for the mark of the interchanger of adapter by it
Knowledge and its load factor；When each controller node have modified the data in the Hash tables that it possesses, the number that need to be changed
According to being synchronized in other controller nodes, the data in the Hash tables each possessed are accordingly updated by other controller nodes；
The dispatching method includes synchrodata restorative procedure, and the synchrodata restorative procedure includes：
The inquiry of this controller node is currently connected to the mark of the interchanger in this controller cluster；
Data in the Hash tables possessed according to this controller node, judge the adapter feelings of interchanger corresponding to the mark that inquires
Condition；
Data in the Hash tables possessed according to this controller node, judge interchanger corresponding to the mark that inquires described in adapter
Controller node quantity；If the controller node quantity is equal to 1, Hash table data reparations are not performed；If the control
Device number of nodes is equal to 0, then by interchanger corresponding to the mark that inquires described in the adapter of openflow agreements, and performs Hash
Table data reparation；If the controller node quantity is more than 1, the data in the Hash tables possessed according to this controller node
Whether interchanger is taken over by this controller node corresponding to the mark inquired described in judgement；If so, then perform Hash table data
Repair；
The Hash tables data reparation includes：Data in the Hash tables possessed this controller node are repaired, simultaneously
Corresponding data synchronize reparation in the Hash tables possessed other controller nodes.
2. the dispatching method of software defined network controller cluster according to claim 1, it is characterised in that the inquiry
The mark for the interchanger being currently connected in this controller cluster is inquired about especially by openflow agreements.
3. a kind of dispatching method of software defined network controller cluster, the software defined network controller cluster includes some
Controller node；Characterized in that, each controller node accordingly possesses a Hash tables, the data of every part of Hash table include：
The identifying of each controller node, each controller node be responsible for the identifying of the interchanger of adapter, each controller node it is negative
Carry the factor；Wherein, each controller node only allows to change in the Hash tables that it possesses is responsible for the mark of the interchanger of adapter by it
Knowledge and its load factor；When each controller node have modified the data in the Hash tables that it possesses, the number that need to be changed
According to being synchronized in other controller nodes, the data in the Hash tables each possessed are accordingly updated by other controller nodes；
The dispatching method includes load-balancing method, and the load-balancing method includes：
Data in the Hash tables possessed according to this controller node, judge load state and other controls of this controller node
The load state of device node, accordingly perform the load balancing between this controller node and other controller nodes.
4. the dispatching method of software defined network controller cluster according to claim 3, it is characterised in that the basis
Data in the Hash tables that this controller node possesses, judge the load state and other controller nodes of this controller node
Load state, accordingly performing the specific steps of the load balancing between this controller node and other controller nodes includes：
Data in the Hash tables possessed according to this controller node, judge this controller node whether in load by calculating
Idle condition；If in load idle condition, calculate this controller node and also need to take over how many interchangers and just reach load
Saturation state；
Judge other controller nodes whether in load busy state by calculating；If so, then calculate the controller node also
Need to abandon that how many interchanger can be only achieved load saturation state；
This controller node adapter controller node in load busy state needs the interchanger abandoned, until this control
Device node processed reaches load saturation state.
5. the dispatching method of software defined network controller cluster according to claim 4, it is characterised in that the load
Equalization methods judge the load state of controller node based on following calculation formula：
Load=(count/weights) * NodeWeigh
Wherein, Load is that corresponding controller node reaches the interchanger quantity taken over during load saturation；Count is this controller
The total quantity of interchanger in cluster；Weights is the summation of load factor corresponding to all controller nodes；NodeWeigh is
Load factor corresponding to corresponding controller node；
If the exchanger quantity of controller node adapter is less than Load, judge that it is in load idle condition；If controller
The exchanger quantity of node adapter is more than Load, then judges that it is in load busy state；If the friendship of controller node adapter
Parallel operation quantity is equal to Load, then judges that it is in load saturation state.
6. the dispatching method of software defined network controller cluster according to claim 5, it is characterised in that the load
Equalization methods also include：
Update in the Hash tables that this controller node possesses and the mark and its load factor of the interchanger of adapter are responsible for by it, will
Its data syn-chronization after updating accordingly updates the Hash tables each possessed into other controller nodes by other controller nodes
In data.
7. the dispatching method of software defined network controller cluster according to claim 6, it is characterised in that the scheduling
Method also includes controller node electoral machinery, and the controller node electoral machinery includes：
Each controller node obtains the mark for the interchanger that institute's election in need is taken over；
Data in the Hash tables possessed according to each controller node, controller node is elected to corresponding to the mark that gets
Interchanger takes over.
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| CN105681193A (en) * | 2016-03-02 | 2016-06-15 | 付宏伟 | Controller system for software defined network |
| CN106603288A (en) * | 2016-12-15 | 2017-04-26 | 中国科学院沈阳自动化研究所 | Centralized multi-controller management method, centralized multi-controller management device and centralized multi-controller management system used for industrial control network |
| US10389647B2 (en) * | 2017-04-19 | 2019-08-20 | The Boeing Company | Controller coordination system |
| CN107257295B (en) * | 2017-06-14 | 2020-04-14 | 广州市品高软件股份有限公司 | Scheduling method of distributed architecture software defined network controller |
| CN116775258A (en) * | 2022-03-08 | 2023-09-19 | 华为技术有限公司 | Resource scheduling method and device and related equipment |
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