CN110113262A - A kind of routing policy determines method, apparatus, SDN controller and heterogeneous network - Google Patents
A kind of routing policy determines method, apparatus, SDN controller and heterogeneous network Download PDFInfo
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- CN110113262A CN110113262A CN201910388824.3A CN201910388824A CN110113262A CN 110113262 A CN110113262 A CN 110113262A CN 201910388824 A CN201910388824 A CN 201910388824A CN 110113262 A CN110113262 A CN 110113262A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/12—Shortest path evaluation
- H04L45/125—Shortest path evaluation based on throughput or bandwidth
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/30—Routing of multiclass traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/42—Centralised routing
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Abstract
The invention discloses a kind of routing policies to determine method, apparatus, SDN controller, computer readable storage medium and heterogeneous network, this method is applied to each SDN controller in SDN controller cluster, SDN controller manages the subnet in heterogeneous network correspondingly, interconnects between different SDN controllers；This method comprises: collecting the network type of managed subnet and the related information of each network node that the subnet that is managed includes；The corresponding network topological diagram of related information construction based on each network node that the subnet managed includes；Network type and customer demand based on the subnet managed determine the network performance for needing to ensure, based on the determining routing policy for meeting network performance of network topological diagram of the subnet managed, and are issued in each router that managed subnet includes.As it can be seen that guaranteeing the demand of each subnet heterogeneous networks performance while the application can be managed collectively subnet each in heterogeneous network.
Description
Technical field
The present invention relates to heterogeneous network converged technical fields, determine method, dress more specifically to a kind of routing policy
It sets, SDN controller, computer readable storage medium and heterogeneous network.
Background technique
With the high speed development of mobile communication and Internet technology, a large amount of different types of communication networks are emerged, together
When deepen continuously with the research of 5G network, the business that traditional single-mode terminal and single network can no longer meet user needs
It asks, therefore combines multiple network resources and the heterogeneous network of flexible networking is supported already to become grinding for next generation wireless network system
Study carefully hot spot.But realize that the fusion of heterogeneous network must make full use of the complementary characteristic between heterogeneous networks, solve a variety of inhomogeneities
The problem that organically blends of type network is related to the fusion of access net, core net fusion, terminal fusion, integrated services and operation management
Fusion etc..The algorithm proposed in these areas in present research is very much, but operation management therein is merged
On there is also many problems to need to solve, at present those skilled in the art's urgent problem to be solved be to each in heterogeneous network
When network is managed collectively, how can guarantee the demand of the heterogeneous networks performance in each subnet.
Summary of the invention
The object of the present invention is to provide a kind of routing policies to determine method, apparatus, SDN controller, computer-readable storage
Medium and heterogeneous network guarantee heterogeneous networks performance in each subnet when can be managed collectively to subnet each in heterogeneous network
Demand.
To achieve the goals above, the invention provides the following technical scheme:
A kind of routing policy determines method, applied to each SDN controller in SDN controller cluster, each SDN
Controller manages each subnet in the affiliated heterogeneous network of SDN controller cluster, and the different SDN correspondingly
It is interconnected between controller；The routing policy determines that method includes:
Collect the network type of the subnet managed in the heterogeneous network and each network that the subnet that is managed includes
The related information of node；
The network that the related information for each network node for including based on the subnet managed constructs managed subnet is opened up
Flutter figure；
Network type based on the subnet managed and customer demand determine the network performance for needing to ensure, based on being managed
The network topological diagram of subnet determine and meet the routing policy of the network performance, and the routing policy is issued to and is managed
Subnet include each router in.
Preferably, the network type based on the subnet managed and customer demand determine the network performance for needing to ensure, packet
It includes:
Customer demand is determined whether there is, if so, the network performance for needing to ensure is determined based on the customer demand, if
It is no, then the network performance for needing to ensure is determined based on the network type of the subnet managed.
Preferably, it collects the network type of the subnet managed in the heterogeneous network and that the subnet that is managed includes is each
The related information of a network node, comprising:
The network type of the subnet managed in heterogeneous network described in real-time collecting and the subnet managed include each
The related information of network node.
Preferably, it determines after meeting the routing policy of the network performance, further includes:
It is whole that the network type, network topological diagram and routing policy of the subnet managed are sent to the corresponding client of client
End, so that the client determines the need for redefining the routing policy of corresponding subnet.
Preferably, further includes:
Monitor the working condition of each network node in managed subnet in real time, and the information reporting that monitoring is obtained is extremely
The management terminal.
Preferably, the routing policy includes realizing minimal cost path, realizing maximum bandwidth utilization rate and realize preferential
The routing policy of grade Service assurance.
A kind of routing policy determining device, applied to each SDN controller in SDN controller cluster, each SDN
Controller manages each subnet in the affiliated heterogeneous network of SDN controller cluster, and the different SDN correspondingly
It is interconnected between controller；The routing policy determining device includes:
Collection module is used for: the subnet collecting the network type of the subnet managed in the heterogeneous network and being managed
The related information for each network node for including；
Constructing module is used for: the related information construction for each network node for including based on the subnet managed is managed
Subnet network topological diagram；
Determining module is used for: network type and customer demand based on the subnet managed determine the network for needing to ensure
Performance determines based on the network topological diagram of the subnet managed and met the routing policy of the network performance, and by the routing
In each router that policy distribution includes to the subnet managed.
A kind of SDN controller, comprising:
Memory, for storing computer program；
Processor realizes that the routing policy any one of as above determines the step of method when for executing the computer program
Suddenly.
A kind of computer readable storage medium is stored with computer program on the computer readable storage medium, described
The step of as above any one routing policy determines method is realized when computer program is executed by processor.
A kind of heterogeneous network, including SDN controller cluster and multiple subnets, the SDN in each SDN controller cluster
Controller manages each subnet correspondingly, and interconnects between the different SDN controllers, the SDN control
Device processed is SDN controller as described above.
The present invention provides a kind of routing policy determine method, apparatus, SDN controller, computer readable storage medium and
Heterogeneous network, wherein the routing policy determines each SDN controller that method is applied in SDN controller cluster, each described
SDN controller manages each subnet in the affiliated heterogeneous network of SDN controller cluster correspondingly, and different described
It is interconnected between SDN controller；The routing policy determines that method includes: the subnet collected and managed in the heterogeneous network
Network type and the subnet that is managed each network node for including related information；Based on the subnet managed include it is each
The related information of a network node constructs the network topological diagram of managed subnet；Network type based on the subnet managed and
Customer demand determines the network performance for needing to ensure, meets the internetworking based on the network topological diagram determination of the subnet managed
The routing policy of energy, and the routing policy is issued in each router that managed subnet includes.As it can be seen that the application
By the setting of SDN controller cluster, the data interaction in heterogeneous network between different sub-network can be managed and be directed to subnet
Relevant information is determined to meet the routing policy for the network performance that need to be ensured and be issued, and can be carried out to subnet each in heterogeneous network
While unified management, guarantees the demand of each subnet heterogeneous networks performance, improve the internetworking of each subnet in heterogeneous network
Can, to realize the raising of heterogeneous network overall network performance.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the flow chart that a kind of routing policy provided in an embodiment of the present invention determines method；
Fig. 2 is that a kind of routing policy provided in an embodiment of the present invention determines SDN controller cluster configuration diagram in method；
Fig. 3 is that a kind of routing policy provided in an embodiment of the present invention determines SDN controller architecture schematic diagram in method；
Fig. 4 is the logic association that a kind of routing policy provided in an embodiment of the present invention determines any network node in method
Figure；
Fig. 5 is that a kind of routing policy provided in an embodiment of the present invention determines network topological diagram in method；
Fig. 6 is that a kind of routing policy provided in an embodiment of the present invention determines network bandwidth matrix schematic diagram in method；
Fig. 7 is that a kind of routing policy provided in an embodiment of the present invention determines that priority service ensures corresponding process in method
Figure；
Fig. 8 is the frame diagram that a kind of routing policy provided in an embodiment of the present invention determines method；
Fig. 9 is a kind of structural schematic diagram of routing policy determining device provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, it illustrates the flow chart that a kind of routing policy provided in an embodiment of the present invention determines method, the road
Determine that each SDN controller that method is applied in SDN controller cluster, each SDN controller are managed correspondingly by strategy
Each subnet in the affiliated heterogeneous network of SDN controller cluster is managed, and is interconnected between different SDN controllers；Route plan
Slightly determine that method may include:
Each network that the subnet that S11: collecting the network type of the subnet managed in heterogeneous network and is managed includes
The related information of node.
In the present embodiment, a distributed SDN controller cluster is established in heterogeneous network, in SDN controller cluster
Each SDN controller management heterogeneous network in a subnet (subnet is the heterogeneous networks that heterogeneous network includes), SDN control
Device and subnet processed are one-to-one relationships；Meanwhile being interconnected between different SDN controllers, it can be realized the friendship of data
Mutually, to control the transmission of the data between different sub-network.Wherein, the basic framework of SDN controller cluster can be such as Fig. 2 institute
Show, the basic framework of corresponding any subnet can be as shown in Figure 3.
A kind of routing policy provided in this embodiment determines that method is applied to SDN controller, and the corresponding routing policy is true
The execution subject for determining method can be SDN controller or the routing policy determining device that is set in SDN control, either on
It is the execution subject that a kind of routing policy provided in this embodiment determines method which kind of situation, which stated, and is properly termed as SDN controller.
Each SDN controller collects the relevant information of the subnet of its management respectively, and the relevant information of subnet includes network type, network
Nodal information, specifically, network type include industrial sensor network, wifi, 4G etc., and network node information is mainly each network section
The related information of point, for any network node, the related information of any network node is to be located at any network node
Network node in radio transmission range or the information with the network node of any network node wired connection, can indicate such as
Under:
Wherein, informationAIt is the related information of network node A in subnet, nodeAIndicate that the network node is A,
Indicate the associated nodes (network in network node A radio transmission range that the network node in<>below is network node A
Node or network node with network node A wired connection).
Each SDN controller collects the related information of each network node in the subnet that it is managed, it is assumed that Ren Yizi
The network node quantity that net includes is n, then the related information for each network node collected can be expressed as follows:
S12: the related information for each network node for including based on the subnet managed constructs the net of managed subnet
Network topological diagram.
It, can be based on these association letters in the subnet that SDN controller is managed after the related information of each network node
Breath carries out the Real-time Reconstruction of the network topology of corresponding subnet, i.e., determines that the logic between corresponding node is closed according to these related informations
Connection is schemed, and then the network topological diagram of entire subnet is restored based on the logic association figure.Wherein, the pass based on any network node
Connection information obtains its logic association figure, as uses the mode of line by the associated nodes of any network node and any network
To indicate that it has association, specific example figure can be as shown in figure 4, it be in correspondence that wherein coverage area, which has intersection, for node connection
In network node radio transmission range；The network topological diagram that logic-based associated diagram restores entire subnet as will be every in subnet
The logic association figure of a network node is integrated into a figure, which can represent any network node in subnet and close with corresponding
The relationship of interlink point, specific example figure can be as shown in Figure 5.
S13: network type and customer demand based on the subnet managed determine the network performance for needing to ensure, are based on institute
The network topological diagram of the subnet of management determines the routing policy for meeting network performance, and routing policy is issued to managed son
In each router that net includes.
Wherein, router is identical as the meaning for corresponding to concept in the prior art, it is SDN controller in the present embodiment
Object is directly controlled, the relay node being equivalent in network, while router controls various terminals node (user in network again
End) interactive information, and relay node and terminal node belong to the network node in network, and routing policy is issued to and is managed
In each router that the subnet of reason includes, realize that data are transmitted using network node according to routing policy by each router.
SDN controller combine managed subnet network type and customer demand can determine need ensure why
Kind network performance, such as can be bandwidth availability ratio, path cost, unit path power consumption network performance.It is determining to need to protect
The network performance of barrier, and in the case where the network topological diagram of known subnet, business can be determined in son based on network topological diagram
The path transmitted in net is to ensure corresponding network performance, namely determines that routing optimal path strategy (is referred to as below
Routing policy), and routing policy is issued in each router of corresponding subnet, business is controlled by each router of subnet
It realizes and transmits according to routing policy respective path.
The application establishes a SDN controller cluster, is managed respectively by each SDN controller in SDN controller cluster different
Each subnet under network forming network interconnects the data interaction that may be implemented between different sub-network between each SDN controller；Each
The related information of each network node under the network type and subnet of the managed subnet of SDN controller collection, in conjunction with customer demand
After determining the network performance that managed subnet need to ensure with network type, based on utilizing each network section in managed subnet
Network topological diagram that the related information of point is established determines the routing policy of network performance that meets and need to ensure, and by routing policy
It is issued in each router that institute's management subnet includes；As it can be seen that the application passes through the setting of SDN controller cluster, Ji Nengguan
The data interaction in heterogeneous network between different sub-network is managed, and can determine to meet the network that need to be ensured for subnet relevant information
The routing policy of performance simultaneously issues, and while capable of being managed collectively to subnet each in heterogeneous network, guarantees each subnet not
With the demand of network performance, the network performance of each subnet in heterogeneous network is improved, to realize heterogeneous network overall network
The raising of energy.
A kind of routing policy provided in an embodiment of the present invention determines method, network type and visitor based on the subnet managed
Family demand determines the network performance for needing to ensure, may include:
Customer demand is determined whether there is, if so, the network performance for needing to ensure is determined based on customer demand, if it is not,
The network performance for needing to ensure then is determined based on the network type of the subnet managed.
It should be noted that client may have the network performance of subnet and there are certain requirements namely customer demand；This reality
It applies in example if there is customer demand, is then subject to and meets customer need, namely determine the network for needing to ensure in customer demand
Performance is the network performance that corresponding subnet needs to ensure, to improve the user experience of client；Customer demand is being not present
In the case of, then determined based on the network type of subnet and need the network performance that ensures, specifically, network type with need to ensure
Network performance between can have pre-set corresponding relationship, thus after determining network type, then can determine this
The corresponding network performance for needing to ensure of network performance；So as to quickly and easily determine needs corresponding with network type
The network performance of guarantee.Wherein, the corresponding relationship between network performance that network type and needs ensure can be previously according to reality
Border needs to be configured, such as compares emphasis data accuracy in industrial network, therefore can default industrial network and need to ensure
Network performance be the switch rate for reducing network data, for another example 4G network, which compares, focuses on data acquisition speed, therefore can default
The network performance that 4G network needs to ensure is maximum bandwidth utilization rate, etc..
A kind of routing policy provided in an embodiment of the present invention determines method, collects the net of the subnet managed in heterogeneous network
The related information for each network node that network type and the subnet managed include may include:
Each network that the network type of the subnet managed in real-time collecting heterogeneous network and the subnet managed include
The related information of node.
It should be noted that SDN controller can correspond to the network type and each net of subnet in the present embodiment with real-time collecting
The related information of network node, and then the above- mentioned information based on real-time collecting realize the routing policy including step S12 to step S13
The correlation step of method is determined, so as to realize the fast of the routing policy of corresponding subnet when subnet changes in heterogeneous network
Fast change in real time, further improves the network performance of corresponding subnet and heterogeneous network.
A kind of routing policy provided in an embodiment of the present invention determines method, determine meet network performance routing policy it
Afterwards, can also include:
It is whole that the network type, network topological diagram and routing policy of the subnet managed are sent to the corresponding client of client
End, so that client determines the need for redefining the routing policy of corresponding subnet.
It, can be by the network class of the subnet managed after the routing policy for determining managed subnet in SDN controller
The case where type, network topological diagram and routing policy are sent to client terminal, and client is allowed to get corresponding subnet in real time, into
And the routing policy for changing corresponding subnet according to actual needs is determined the need for, the user experience is improved.It is corresponding, the application
A kind of routing policy that embodiment provides determines the customer demand that method can be sent with real-time reception client, and is connect based on newest
The customer demand received executes the corresponding steps for determining routing policy；So that client can change routing in real time according to demand
Strategy, further the user experience is improved.
A kind of routing policy provided in an embodiment of the present invention determines method, can also include:
Monitor the working condition of each network node in managed subnet in real time, and the information reporting that monitoring is obtained is extremely
Management terminal.
SDN controller monitors the working condition of each network node in managed subnet, and the letter that monitoring is obtained in real time
Breath is reported to management terminal, and each network node under corresponding subnet can be known in real time by enabling to management terminal to correspond to administrator
Working condition, and carry out the operation such as fault restoration in time when it can not work normally, it ensure that the normal work of each network node
Make.
A kind of routing policy provided in an embodiment of the present invention determines method, and routing policy may include realizing minimum cost road
Diameter realizes maximum bandwidth utilization rate and realizes the routing policy of priority service guarantee.
It should be noted that the network performance for needing to ensure in the present invention may include minimal cost path, minimum unit
Path power consumption, maximum bandwidth utilization rate and priority service guarantee etc., corresponding routing policy be realize minimal cost path,
Realize the routing policy of minimum unit path power consumption, realization maximum bandwidth utilization rate and realization priority service guarantee etc., certainly
It can also according to actual needs include other network performances, it is within the scope of the present invention.Below with minimum cost road
Diameter, maximum bandwidth utilization rate and priority service are specifically described for ensureing:
1) minimal cost path:
In network G (V, ε), one from network node u if it exists0To network node ukPath P ath (u0, uk)iIt is not more than
Any one from network node u0To network node ukPath P ath (u0, uk)kPath costThen claim this
Jump path is minimal cost path, it is assumed that from network node u0To network node ukPath number be M, then:
Path(u0,uk)i=Path (u0,uk)min；
According to above-mentioned formula, the path cost in the path of various possible selections is calculated, show that the smallest path cost is corresponding
Path be minimal cost path, meet the performance of the low delay of network.
2) maximum bandwidth availability ratio:
Define 1 (heavy duty access point condition): it is each service bandwidth demand summation in access point that heavy duty, which accesses point set,
Greater than the access point set of the initial bandwidth of the access point, that is, meet:
Define 2 (light load access point conditions): light load access point set is each service bandwidth demand summation in access point
Less than or equal to the access point set of the initial bandwidth of the access point, that is, meet:
For any network, the network topological diagram based on the network obtains network bandwidth matrix, specific example such as Fig. 6 institute
Show.First the size of Business Stream (Business Stream indicates the network bandwidth size that business occupies) is ranked up, then SDN controller is first
The selection that business carries out path is corresponded to big Business Stream, then (access point is also net in each access point of detection current network
Network node, only it works in the current situation, therefore can be described as access point) in each service bandwidth demand summation's
Situation, if (node is a router node to the node, and the router node is for collecting each user in current network
Business Stream) meet the condition that the node is light load access point set:Then Path selection is suitable, if the node
Meet the condition of heavy duty access point set:Then illustrate that Path selection is improper, needs to re-start path choosing
It selects, Path selection is carried out according to such method, the bandwidth of each access point of network can be maximally utilized, maximizes and improves network
Bandwidth utilization rate.
3) guarantee of priority service
The sequence of the height of priority is carried out according to the business in network, it is different then by the sequence of the priority of business
Business the selection in path is carried out according to current network condition, as shown in Figure 7.
The method of the routing policy of the 3 kinds of above network performances is 3 of the invention using example, side proposed by the present invention
Method is equally applicable to the determination of the routing policy of other network performances.Fig. 8 is a kind of routing plan provided in an embodiment of the present invention
The frame diagram of method is slightly determined, to realize the promotion of network performance based on the frame.
The embodiment of the invention also provides a kind of routing policy determining devices, applied to each of SDN controller cluster
SDN controller, each SDN controller manage each subnet in the affiliated heterogeneous network of SDN controller cluster correspondingly, and
It is interconnected between different SDN controllers；Routing policy determining device is as shown in figure 9, may include:
Collection module 11, is used for: the subnet packet collecting the network type of the subnet managed in heterogeneous network and being managed
The related information of each network node contained；
Constructing module 12, is used for: the related information construction for each network node for including based on the subnet managed is managed
The network topological diagram of the subnet of reason；
Determining module 13, is used for: network type and customer demand based on the subnet managed determine the net for needing to ensure
Network performance, based on the determining routing policy for meeting network performance of network topological diagram of the subnet managed, and will be under routing policy
It is sent in each router that managed subnet includes.
A kind of routing policy determining device provided in an embodiment of the present invention, determining module may include:
Determination unit is used for: customer demand is determined whether there is, if so, determining what needs ensured based on customer demand
Network performance, if it is not, then determining the network performance for needing to ensure based on the network type of the subnet managed.
A kind of routing policy determining device provided in an embodiment of the present invention, collection module may include:
Collector unit is used for: the network type of the subnet managed in real-time collecting heterogeneous network and the subnet managed
The related information for each network node for including.
A kind of routing policy determining device provided in an embodiment of the present invention can also include:
Sending module is used for: being determined after meeting the routing policy of network performance, by the network class of the subnet managed
Type, network topological diagram and routing policy are sent to the corresponding client terminal of client, so that client determines the need for redefining
The routing policy of corresponding subnet.
A kind of routing policy determining device provided in an embodiment of the present invention can also include:
Reporting module is used for: the working condition of each network node in the managed subnet of real time monitoring, and will be monitored
The information reporting arrived is to management terminal.
A kind of routing policy determining device provided in an embodiment of the present invention, routing policy may include realizing minimum cost road
Diameter realizes maximum bandwidth utilization rate and realizes the routing policy of priority service guarantee.
The embodiment of the invention also provides a kind of SDN controllers, may include:
Memory, for storing computer program；
Processor realizes the step of as above any one routing policy determines method when for executing computer program.
The embodiment of the invention also provides a kind of computer readable storage medium, it is stored on computer readable storage medium
The step of as above any one routing policy determines method may be implemented in computer program when computer program is executed by processor.
It may include SDN controller cluster and multiple subnets the embodiment of the invention also provides a kind of heterogeneous network, each
SDN controller in SDN controller cluster manages each subnet correspondingly, and is mutually connected between different SDN controllers
It connects, SDN controller is the SDN controller of above-described embodiment.
It should be noted that a kind of routing policy determining device, SDN controller and heterogeneous network provided in an embodiment of the present invention
The explanation of relevant portion refers to a kind of routing policy provided in an embodiment of the present invention and determines the detailed of corresponding part in method in network
Describe in detail bright, details are not described herein.In addition in above-mentioned technical proposal provided in an embodiment of the present invention with correspond to technology in the prior art
The consistent part of scheme realization principle is simultaneously unspecified, in order to avoid excessively repeat.
The foregoing description of the disclosed embodiments can be realized those skilled in the art or using the present invention.To this
A variety of modifications of a little embodiments will be apparent for a person skilled in the art, and the general principles defined herein can
Without departing from the spirit or scope of the present invention, to realize in other embodiments.Therefore, the present invention will not be limited
It is formed on the embodiments shown herein, and is to fit to consistent with the principles and novel features disclosed in this article widest
Range.
Claims (10)
1. a kind of routing policy determines method, which is characterized in that applied to each SDN controller in SDN controller cluster, often
A SDN controller manages each subnet in the affiliated heterogeneous network of SDN controller cluster correspondingly, and different
The SDN controller between interconnect；The routing policy determines that method includes:
Collect the network type of the subnet managed in the heterogeneous network and each network node that the subnet that is managed includes
Related information；
The related information for each network node for including based on the subnet managed constructs the network topological diagram of managed subnet；
Network type and customer demand based on the subnet managed determine the network performance for needing to ensure, based on the son managed
The network topological diagram of net determines the routing policy for meeting the network performance, and the routing policy is issued to managed son
In each router that net includes.
2. the method according to claim 1, wherein network type and customer demand based on the subnet managed
Determine the network performance for needing to ensure, comprising:
Customer demand is determined whether there is, if so, the network performance for needing to ensure is determined based on the customer demand, if it is not,
The network performance for needing to ensure then is determined based on the network type of the subnet managed.
3. according to the method described in claim 2, it is characterized in that, collecting the network of the subnet managed in the heterogeneous network
The related information for each network node that type and the subnet managed include, comprising:
Each network that the network type of the subnet managed in heterogeneous network described in real-time collecting and the subnet managed include
The related information of node.
4. according to the method described in claim 3, it is characterized in that, determine meet the routing policy of the network performance after,
Further include:
The network type, network topological diagram and routing policy of the subnet managed are sent to the corresponding client terminal of client, with
Determine the need for redefining the routing policy of corresponding subnet for the client.
5. according to the method described in claim 4, it is characterized by further comprising:
Monitor the working condition of each network node in managed subnet in real time, and the information reporting that monitoring is obtained is to described
Management terminal.
6. according to the method described in claim 5, it is characterized in that, the routing policy includes realizing minimal cost path, reality
Existing maximum bandwidth utilization rate and the routing policy for realizing priority service guarantee.
7. a kind of routing policy determining device, which is characterized in that applied to each SDN controller in SDN controller cluster, often
A SDN controller manages each subnet in the affiliated heterogeneous network of SDN controller cluster correspondingly, and different
The SDN controller between interconnect；The routing policy determining device includes:
Collection module is used for: the subnet collecting the network type of the subnet managed in the heterogeneous network and being managed includes
Each network node related information；
Constructing module is used for: the related information for each network node for including based on the subnet managed constructs managed son
The network topological diagram of net；
Determining module is used for: network type and customer demand based on the subnet managed determine the network performance for needing to ensure,
Based on the determining routing policy for meeting the network performance of network topological diagram of the subnet managed, and will be under the routing policy
It is sent in each router that managed subnet includes.
8. a kind of SDN controller characterized by comprising
Memory, for storing computer program；
Processor realizes the routing policy determination side as described in any one of claim 1 to 6 when for executing the computer program
The step of method.
9. a kind of computer readable storage medium, which is characterized in that be stored with computer on the computer readable storage medium
Program realizes that the routing policy as described in any one of claim 1 to 6 determines method when the computer program is executed by processor
The step of.
10. a kind of heterogeneous network, which is characterized in that including SDN controller cluster and multiple subnets, each SDN controller
SDN controller in cluster manages each subnet correspondingly, and is mutually connected between the different SDN controllers
It connects, the SDN controller is SDN controller as claimed in claim 8.
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