CN105580315A - Software defined networking controller for hybrid network components and method for controlling a software defined network - Google Patents
Software defined networking controller for hybrid network components and method for controlling a software defined network Download PDFInfo
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- CN105580315A CN105580315A CN201480037241.1A CN201480037241A CN105580315A CN 105580315 A CN105580315 A CN 105580315A CN 201480037241 A CN201480037241 A CN 201480037241A CN 105580315 A CN105580315 A CN 105580315A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/02—Standardisation; Integration
- H04L41/022—Multivendor or multi-standard integration
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/40—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks using virtualisation of network functions or resources, e.g. SDN or NFV entities
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Abstract
A software defined networking controller (2) comprises a communication unit (3) configured to communicate with network components (5) and a control unit (4). The network components (5) comprise at least one hybrid network component (5) comprising at least one software defined networking compliant network resource (6), and at least one non-software defined networking compliant network resource (7). The control unit (4) is configured to control the at least one software defined networking compliant network resource (6) and the at least one non-software defined networking compliant resource (7).
Description
Technical field
The present invention relates to a kind of software defined network controller for net control assembly, hybrid network assembly especially in software defined network and the corresponding method of one.
Background technology
During in recent years, the importance of software defined network sharply rose.At present, software defined network controller is used for the networking component of control software design define grid compatibility.Legacy network controller is for controlling the networking component of non-software define grid compatibility.In order to the networking component of control software design define grid compatibility and the networking component of non-software define grid compatibility, be necessary that there is different network controllers.This causes high strength hardware effort for network migration and high strength implementation.
Summary of the invention
Therefore, target of the present invention is to provide a kind of software defined network controller and the method for control software design define grid, and described software defined network controller and described method can control multiple network assembly and bring low hardware for implementing and labour cost simultaneously.
Described target is by the feature according to claim 1 of described device and solved by the feature according to claim 14 of described method.In addition, described target is solved by the feature according to claim 15 of the computer program be associated.Dependent claims comprises further expansion.
A first aspect of the present invention provides software defined network controller, and it comprises communication unit for communicating with networking component and control unit.Networking component comprises at least one hybrid network assembly, described hybrid network assembly comprises the Internet resources (Internet resources of SDN compatibility) of at least one software defined network compatibility, and the Internet resources of at least one non-software define grid compatibility (Internet resources of non-SDN compatibility).Control unit is for the resource of the Internet resources He at least one non-software define grid compatibility that control at least one software defined network compatibility.Therefore likely controlled other Internet resources of hybrid network assembly by single software defined network controller, and no matter described Internet resources be SDN compatibility be also non-SDN compatibility.Therefore bring low-down hardware and implement human cost.
According to the first form of implementation of first aspect, communication unit is for receiving the information of the described Internet resources about described hybrid network assembly.Software defined network controller comprises the database for storing described received information subsequently further.In addition, control unit is subsequently for controlling the described Internet resources of described hybrid network assembly based on described stored information.The configuration very flexibly of described software defined network is possible thus.
According to the second form of implementation of first aspect, described information indicates the respective network resource of described hybrid network assembly to be the Internet resources of SDN compatibility to be also the Internet resources of non-SDN compatibility.SDN controller easily can judge how to control other Internet resources thus.This decreases implementation in addition.
According to the 3rd form of implementation of first aspect, the Internet resources of at least one SDN compatibility described are software defined network queue or software defined network stream.Alternatively, according to the 4th form of implementation, the Internet resources of at least one SDN compatibility are the network interfaces of SDN compatibility.In the case, the Internet resources of at least one non-SDN compatibility are the network interfaces of non-SDN compatibility.Multiple different Internet resources can be controlled thus by software defined network controller.
According to the 5th form of implementation of first aspect, control unit for the network interface of the network interface He at least one non-SDN compatibility that control at least one SDN compatibility the input bag at these network interface places to be routed to other network interface of described hybrid network assembly.Thus to Internet resources very flexibly use be possible.
According to the 6th form of implementation of first aspect, the network interface of at least one SDN compatibility is open flows control port.By using open flows standard, very easy embodiment can be realized.
According to the 7th form of implementation of first aspect, control unit is used for based on the Internet resources of the SDN compatibility of data model net control assembly and the Internet resources of non-SDN compatibility, and described data model comprises the abstract device entity for each networking component controlled by control unit.The each self-contained multiple abstract resource entity of abstract device entity, described abstract resource entity comprises again abstract network interface or abstract network queue or abstract network stream.Resource entity points to the specific embodiments of resource separately.The specific embodiments of resource comprises network interface, network queue and network flow.By using this data model, very effective embodiment is possible.
According to the 8th form of implementation of first aspect, communication unit is used for receiving information from described given networking component after being connected with given networking component, and described information is about the Internet resources available at given networking component place.Control unit subsequently for creating the abstract device entity for given networking component in data model based on received information.Multiple parts of embodiment can therefore automation, thus reduces implementation further.
According to the 9th form of implementation of first aspect, hybrid network assembly is the hybrid network switch or the hybrid network router that comprise the port of at least one SDN compatibility and the port of at least one non-SDN compatibility.Be used as hybrid network assembly especially by by hybrid network switch and hybrid network router, the major part of whole hybrid network assembly can be covered.For this most of available hybrid network assembly, implementation can be realized and reduce.
The tenth form of implementation according to a first aspect of the invention, provides software defined network system.SDN system comprises software defined network controller as described above, Management Controller and at least two networking components.Management Controller is used for carrying out control software design define grid controller by sending route requests to software defined network controller.Efficient enforcement can be realized thus.
According to the 11 form of implementation of first aspect, described route requests comprises two networking components in described networking component separately, and data flow will start or stop between described two networking components.Therefore Management Controller need not comprise the detailed knowledge of the setting about software defined network.This increases efficiency further.
According to the 12 form of implementation of first aspect, software defined network controller comprises the network interface of at least one SDN compatibility and the network interface of non-SDN compatibility.Software defined network controller is subsequently for starting or terminate in the above-mentioned data flow that the connection between the described network interface of at least one hybrid network assembly described and the network interface of described networking component is specified by route requests with startup or termination.Realize the very effective management of described software defined network thus.
According to a second aspect of the invention, provide a kind of for using the method for software defined network controller control software design define grid.Software defined network comprises software defined network controller and comprises the networking component of at least one hybrid network assembly.At least one hybrid network assembly comprises the Internet resources of at least one SDN compatibility and the Internet resources of at least one non-SDN compatibility.Software defined network controller controls the Internet resources of at least one SDN compatibility and the Internet resources of at least one non-SDN compatibility.Low-intensity implementation and the high efficiency of management can be realized thus.
The first form of implementation according to a second aspect of the invention, the information about the described Internet resources of described hybrid network assembly is received and is stored in the database of software defined network controller.In order to control the Internet resources of described hybrid network assembly, use the information stored.Thus to described resource very flexibly control be possible.
According to the second form of implementation of second aspect, described information indicates the respective network resource of described hybrid network assembly to be the Internet resources of SDN compatibility to be also the Internet resources of non-SDN compatibility.The configuration very flexibly of described software defined network is possible thus.
According to the 3rd form of implementation of second aspect, the Internet resources of at least one SDN compatibility described are software defined network queue or software defined network stream.According to the 4th form of implementation, the Internet resources of at least one SDN compatibility described are the network interface of SDN compatibility and the Internet resources of at least one non-SDN compatibility described are the network interfaces of non-SDN compatibility.Multiple different Internet resources can be controlled thus by software defined network controller.
According to the 5th form of implementation of second aspect, control the network interface of at least one SDN compatibility and the network interface of at least non-SDN compatibility the input bag at these network interface places to be routed to other network interface of described hybrid network assembly.Thus to Internet resources very flexibly use be possible.
The 6th form of implementation according to a second aspect of the invention, the network interface of at least one SDN compatibility is open flows control port.By using open flows standard, very easy embodiment can be realized.
According to the 7th form of implementation of second aspect, based on the Internet resources of the SDN compatibility of the data model net control assembly of the abstract device entity comprised for each networking component and the Internet resources of non-SDN compatibility.The each self-contained multiple abstract resource entity of abstract device entity.Abstract resource entity comprises abstract network interface or abstract network queue or abstract network stream separately.Resource entity points to the specific embodiments of resource separately.The specific embodiments of resource comprises network interface, network queue and network flow.By using this data model, very effective embodiment is possible.
According to the 8th form of implementation of second aspect, after being connected with given networking component, receive the information from given networking component.Described information is about the Internet resources available at given networking component place.In data model, the abstract device entity for given networking component is created based on received information.Multiple parts of embodiment can therefore automation, thus reduces implementation further.
According to the 9th form of implementation, hybrid network assembly is the hybrid network switch or the hybrid network router that comprise the port of at least one SDN compatibility and the port of at least one non-SDN compatibility.Be used as hybrid network assembly especially by by hybrid network switch and hybrid network router, the major part of whole hybrid network assembly can be covered.For this most of available hybrid network assembly, implementation can be realized and reduce.
According to the tenth form of implementation of second aspect, Management Controller carrys out control software design define grid controller by sending route requests to software defined network controller.Efficient enforcement can be realized thus.
According to the 11 form of implementation, described route requests comprises two networking components in described networking component separately, and data flow will start or stop between described two networking components.Therefore Management Controller need not comprise the detailed knowledge of the setting about software defined network.This increases efficiency further.
The 12 form of implementation according to a second aspect of the invention, the Internet resources of at least one SDN compatibility are the network interface of SDN compatibility and the Internet resources of at least one non-SDN compatibility are the network interfaces of non-SDN compatibility.Software defined network controller starts or terminates in the data flow that the connection between the described network interface of at least one hybrid network assembly described and the network interface of described networking component is specified by route requests with startup or termination.Realize the very effective management of described software defined network thus.
According to a third aspect of the invention we, provide a kind of computer program with program code, described program code is used for performing previously described method when described computer program runs on computers.
Further advantageously, which kind of technology the attribute of each Unit Level indicates be associated with concrete device.The type (such as, open flows type port is to traditional type port) of resource is obtained from type of device.Therefore, in resource level, there is not the degree of freedom.
Advantageously, the type of concrete resource is that described resource allows device to comprise the characteristic of some resources separately with different technologies (such as, is open flows, and another is traditional).Advantageously, the abstract of the device in SDN controller carries out in the level of sub-device, and described level is corresponding with the resource of described device.Therefore, SDN controller can not only process the mode mutually the repelled device with multiple technologies, and in fact can process the device of conbined usage multiple technologies.In addition, because SDN controller provides so-called " northbound interface " mutual for applications and SDN controller, the present invention allows more complicated application, that is, L2 and L3 type application is mutual with SDN controller.
These and other aspect of the present invention will be apparent from embodiment as described below.
Usually, must be noted that, all layouts described in the present invention, device, element, unit and component etc. can be implemented by the combination of software or hardware element or its any kind.By the various entities described in subject application perform in steps and be described as the functional corresponding entity that means performed by various entity is applicable to or is used for performing corresponding steps and functional.Even if following in the description of specific embodiment, the exact functionality performed by general entity or step are not reflected in the description of the concrete detailed elements performing described concrete steps or functional described entity, those skilled in the art also should be clear, these methods and functionally can to implement with the combination of corresponding software or hardware element or its any kind.
In addition, the feature that should be understood that by using term "or" to be described as replacement scheme is not regarded as mutually repelling, but is considered as the replacement scheme that may be combined with.
Accompanying drawing explanation
Use accompanying drawing hereinafter embodiments of the invention is described, wherein
Fig. 1 illustrates the block diagram of the first embodiment of the present invention;
Fig. 2 illustrates the block diagram of more detailed second embodiment of the present invention;
Fig. 3 illustrates the exemplary topology of the software defined network comprising hybrid switching machine;
Fig. 4 illustrates exemplary routing table;
Fig. 5 illustrates example software define grid system;
Fig. 6 illustrates the more detailed view of example software define grid system;
Fig. 7 illustrates the embodiment of the first embodiment of creativity software define grid system;
Fig. 8 illustrates the expression of the data model used by the 3rd embodiment of creativity software define grid controller;
Fig. 9 illustrates the second view of the data model shown in Fig. 8;
Figure 10 illustrates the three-view diagram of the data model shown in Fig. 8 and Fig. 9, and
Figure 11 illustrate in flow charts according to an embodiment of the invention for the method for control software design define grid.
Embodiment
First, we represent the structure of the different embodiments of software defined network controller and software defined network system and functional along Fig. 1 to Fig. 4.Use Fig. 5 to Fig. 7, by software defined network system according to an embodiment of the invention compared with the software defined network system of routine.The data model that can be used by software defined network controller is according to an embodiment of the invention described along Fig. 8 to Figure 10.Finally, describe according to an embodiment of the invention for the method for control software design define grid along Figure 11.Part omits similar entities in different drawings and reference number to improve readability.
In FIG, software defined network controller 2 is according to an embodiment of the invention shown.Software defined network controller 2 comprises communication unit 3 (COM), and described communication unit is connected with control unit 4 (CTRL).In this example, software defined network controller 2 is depicted as the part of software defined network system 1, described software defined network system comprises networking component in addition, describe a networking component 5 in described networking component herein, namely, hybrid network assembly (hybridnetworkcomponent, HNC).Hybrid network assembly 5 comprises the Internet resources 6 (SDNNR) of software defined network compatibility and the Internet resources 7 (non-SDNNR) of non-software define grid compatibility, and the Internet resources of described software defined network compatibility and the Internet resources of non-software define grid compatibility are connected to the communication unit 3 of software defined network controller 2 separately.Communication unit 3 is connected to control unit 4.
The object of communication unit 3 for communicating with the networking component 5 of software defined network system 1.Described control unit is for the Internet resources 7 of the Internet resources 6 and at least one non-SDN compatibility that control at least one SDN compatibility of hybrid network assembly 5.
In fig. 2, software defined network controller 2 is according to another embodiment of the present invention shown.In addition in this example, software defined network controller 2 is depicted as the part of software defined network system 1.Herein, software defined network controller 2 in addition (compared to Figure 1) comprise database 8 (DB), described DataBase combining is to control unit 4.In addition, in fig. 2, depict other networking component 10, described other networking component is the networking component (networkcomponent, NC) of non-SDN compatibility.Networking component 10 comprises the Internet resources of only non-SDN compatibility, depicts the Internet resources 11 of the non-SDN compatibility in the Internet resources of described non-SDN compatibility herein.Communication unit 3 is also connected to the Internet resources 11 of this non-SDN compatibility of other networking component 10.Control unit 4 is in addition for the Internet resources 11 also by using communication unit 3 to control non-SDN compatibility.In addition, in fig. 2, depict Management Controller 9 (MANCTRL), described Management Controller is connected to communication unit 3.
Transmit data in order to be formed to connect between two networking components 5,10, Management Controller 9 sends route requests to software defined network controller 2.In order to do like this, Management Controller 9 sends route requests to the communication unit 3 of software defined network controller 2, and described route requests is forwarded to control unit 4 by described communication unit.Route requests comprises the mark (such as, port, IP address, MAC Address or fellow) of at least two networking components will connected therebetween.As an example, therebetween the mark forming the networking component 5,10 connected can be included in route requests.
Software defined network controller 2 starts subsequently or terminates in the connection between the described network interface of at least one hybrid network assembly described and the network interface of described networking component, so that the data flow that startup or termination are specified by route requests.In order to do like this, control unit 4 is determined Internet resources bag to be routed to where to be based upon the data flow between corresponding network assembly 5,10 subsequently.In the case, control unit 4 is determined bag to be routed to the Internet resources 6 of software defined network compatibility and to be routed to the Internet resources 11 of non-software define grid compatibility to be based upon the data flow between networking component 5 and networking component 10.
In example described in fig. 1 and 2, networking component 5,10 is switch or router.Especially hybrid network assembly 5 is such as hybrid network switch or hybrid network router, and networking component 10 is the network switch or the network router of non-SDN compatibility.But in described example, the Internet resources of SDN compatibility and the Internet resources of non-SDN compatibility are the network interface of SDN compatibility and the network interface of non-SDN compatibility.Alternatively, queue or stream or other resource type can also be adopted.
When setting up software defined network system 1, communication unit is for receiving the information about hybrid network assembly 5 and the advantageously Internet resources 6,7,11 of other networking component 10 any of software defined network system 1.This information received is stored in database 8.Based on the described information net control assembly stored in database 8.
Especially described information can indicate the respective network resource of described hybrid network assembly to be the Internet resources of SDN compatibility to be also the Internet resources of non-SDN compatibility.In the network interface situation that the Internet resources 6 of SDN compatibility are SDN compatibility, advantageously, described network interface is open flows control port.
When the Internet resources of the Internet resources of control SDN compatibility and non-SDN compatibility, software defined network controller 2 performs this based on the data model of the abstract device entity of each networking component 5,10 comprised for being controlled by control unit 4 and controls.The each self-contained multiple abstract resource entity of abstract device entity, described abstract resource entity comprises abstract network interface or abstract network queue or abstract network stream.Resource entity points to the specific embodiments of resource separately, and described specific embodiments comprises network interface, network queue and network flow.About data model, with reference to elaborating about Fig. 8 to Figure 10.
Advantageously, communication unit 3 this externally receive the information comprising which Internet resources about described assembly when being connected to concrete networking component.In the case, control unit 4 for creating the abstract device entity for given networking component in data model based on received information.
Especially should point out, within this document, the Internet resources (Internet resources 6 of such as SDN compatibility) of software defined network compatibility are interpreted as using the configurable Internet resources of software defined network agreement, such as open flows.The Internet resources of non-SDN compatibility are interpreted as only using the configurable Internet resources of legacy protocol, such as Ethernet protocol.The Internet resources of non-SDN compatibility can also refer to be decided to be legacy network resource.
In figure 3, multiple networking component being shown, can be the network switch 30 to 36 of the part of software defined network system 1 especially as shown in figs. 1 and 2.Switch 30,31,33,34 and 36 only comprises the network interface A of software defined network compatibility
1to A
4, B
1to B
4, D
1to D
4, E
1to E
4, G
1to G
4as Internet resources.Switch 32 and 35 is hybrid network switches, because they comprise the network interface C of software defined network compatibility
1, C
2, F
1, F
2with the network interface C of non-SDN compatibility
3, C
4, F
3, F
4, the network interface of described non-SDN compatibility is labeled as traditional port herein.Connection between the individual port of switch 30 to 36 is described by line and corresponding arrow.The direction of described arrow instruction flow.
The connection of the corresponding port of switch is indicated in the routing table 40 of Fig. 4.In this example, the ledge of routing table 40 indicates the network interface of non-SDN compatibility, that is, the connection of traditional port.Can find out, also be supported in the connection between the network interface of non-SDN compatibility and the network interface of SDN compatibility.
In Figure 5, the example of software defined network system is shown.The system herein illustrated comprises Management Controller 59, and described Management Controller is connected to software defined network controller 52, and described software defined network controller is connected to again the multiple networking components 30 to 36 corresponding with the switch 30 to 36 of Fig. 3.About switch, with reference to elaborating about Fig. 3.
Software defined network controller 52 is such as by open flows actualizing.Controller 52 realizes the IN service stream in the network of switch.Software defined network controller 5 obtains the topology of the network of switch and the Business Stream that can be configured in the open flows assembly of switch.Therefore, the Business Stream only between the open flows port of switch 30 to 36 can be controlled by software defined network controller 52.
The Management Controller 59 of operational management application provides the management interface of switch by software defined network controller 52.In addition, described Management Controller provides the direct control of the traditional port to switch.But do not describe in this respect in Fig. 5.
To shown in Fig. 5, the route requests that relevant use case comprises path configurations is set, the end points in the path of route requests is only defined in the management wherein run by Management Controller 59 application.Software defined network controller 52 is determined at networking component, i.e. switch 30 to 36, port between the path of indivedual bags.The network interface of the software defined network controller 52 software defined network compatibility of configuration switch 30 to 36 subsequently, i.e. open flows port.Because these ports may be not enough to perform according to the whole path of route requests, so the management application run by Management Controller 59 must configure the network interface of non-SDN compatibility, i.e. non-open flows port in this example.This describes in figure 6 more in detail.
Setting in Fig. 6 is corresponding with arranging in Fig. 5.In order to set up new route, the management application run by Management Controller 59 is asked port A from software defined network controller 52
3be set as end points and by port E
2be set as terminal prot.Therefore, route requests comprises port A
3and E
2.Controller receives corresponding route requests and determines which possible path can connect this two destination ports.Find two alternative paths:
1.A
3→B
2、B
3→C
1、C
3→D
2、D
3→G
3、G
2→F
4、F
2→E
2
2.A
3→B
2、B
4→F
3、F
2→E
2。
Software defined network controller 52 determines one in possible path subsequently.In the case, described software defined network controller determines the second shorter path.Example software define grid controller 52 as described herein can configured port A
3, B
2, B
4, F
2and E
2, but can not configured port F
3, because comprise port F
3switch 35 be hybrid switching machine and port F
3the network interface of non-SDN compatibility, i.e. traditional port.In order to set path, need to be configured in A
3and E
2between respective switch.Software defined network controller 52 configured port A
3, B
2, B
4, F
2and E
2.The management application run by Management Controller 59 is by the legacy interface configured port F of such as SNMP
3.
This shortcoming arranged is that Management Controller 59 needs to understand whole network settings and the configuration that must participate in port.This causes Management Controller 59 can not be thin client wherein, but needs disposal ability.In addition, exterior arrangement manager is required, and it supports legacy protocol.Therefore, the other deployment of this configuration manager is required.Although implemented the logic being used for configured port in software defined network controller 52, other closely similar logic must be implemented in the Management Controller 59 for controlling traditional port.
In the figure 7, software defined network system 71 is according to an embodiment of the invention shown.Software defined network system 71 comprises the network of Management Controller 79, according to an embodiment of the invention software defined network controller 72 and switch 30 to 36, and described switch is corresponding with networking component.As described previously, switch 32,35 is hybrid switching machines, and remaining switch 30,31,33,34 and 36 is network switchs of software defined network compatibility.
The embodiment of embodiments of the invention represents the direct method of management and control software design define grid, and described method is corresponding with the mixture of the open flows supporting switch and hybrid switching machine.Switch 30 to 36 used herein can be identical with the switch used in the example shown in Fig. 6.Main Differences is software defined network controller 72 and Management Controller 79.In order to pathway, Management Controller sends route requests to software defined network controller 72.Described route requests is by port A
3and E
2be designated as end points, thus define the port by data flow connection.Software defined network controller 72 receives described route requests and finds two alternative paths:
1.A
3→B
2、B
3→C
1、C
3→D
2、D
3→G
3、G
2→F
4、F
2→E
2
2.A
3→B
2、B
4→F
3、F
2→E
2。
Software defined network controller 72 determines one in path subsequently, is the second shorter path in the case.After this, software defined network controller 72 configured port A
3, B
2, B
4, F
2, E
2and F
3.No matter its agreement how, and the administration order that all switches are relevant is all propagated from software defined network controller 72.Do not exist between Management Controller 79 and other networking component individual and directly connect and communication channel, namely no longer need switch 30 to 36.Whole management logic is removed from Management Controller 79.Therefore Management Controller 79 may be the system with low-down disposal ability, such as thin client.In addition, the management more accurately of hybrid switching machine is possible thus.Further, conforming increase is reached.All administration orders all process in single channel.Do not need the management channel that two different.In addition, cost can be realized and reduce, because the option disposing independent allocation plan for legacy protocol is no longer required.
Along Fig. 8 to Figure 10, the data model 80 for net control resource is shown.What describe is the uml diagram describing the data model supporting hybrid network assembly herein, such as, and the hybrid network assembly 5 of Fig. 1 and Fig. 2 and Fig. 3 and Fig. 5 hybrid network assembly 32,35 to 7.Universal after this data model is for each networking component, such as, for each switch or router, abstract device entity.Abstract device entity 81 comprises multiple abstract resource entity 83 to 86, and described abstract resource entity is by block 82 cascade.The dissimilar resource object corresponding from abstract resource entity has some common traits and depends on the unique attribute that used technology may be different.Abstract resource entity 83 to 86 comprises abstract network interface 87 or abstract network queue 88 or abstract network stream 89.In this example, the abstract resource unit 86 comprising non-a defined abstract network resource 90 for implementing Future is shown in addition.Concrete technical background is provided by a series of other object, described other object and abstract network interface 87 or abstract network queue 88 or abstract network stream 89 corresponding.
Another legal object can be LAYER2_PORT, and it represents traditional type resource.In this data model, the Internet resources (NetworkElement, NE) corresponding with abstract device entity 81 are still abstract and indirectly can comprise the resource of various object, the OPENFLOW_PORT such as combined with LAYER2_PORT.
Abstract resource entity 83 to 86 points to the specific embodiments of resource 87 to 90 separately.The specific embodiments of resource 87 to 90 comprises by the network interface of the indivedual record instructions in the concrete resource of zone marker, network queue and network flow.
Finally, in fig. 11, illustrate according to an embodiment of the invention for the method for control software design define grid.In first step 100, provide the software defined network comprising at least one hybrid network assembly, described hybrid network assembly comprises the Internet resources of at least one SDN compatibility and the Internet resources of at least one non-SDN compatibility.
In second step 101, Management Controller carrys out control software design define grid controller by sending route requests to software defined network controller.In final step 102, software defined network controller controls the Internet resources of at least one SDN compatibility and the Internet resources of at least one non-SDN compatibility of hybrid network assembly.
About other details of the method for control software design define grid, with reference to previously elaborating about software defined network controller and software defined network system.
Embodiments of the invention are not limited to described example and are especially not limited to open flows and OpenDaylight standard.Concept discussed above can be applied to any software defined network system, comprises hybrid network assembly.Can by any favourable characteristic combinationally using exemplary embodiment.
The various embodiments combined herein describe the present invention.But other version of appended embodiment can be understood according to the research of graphic, disclosure and appended claims by those skilled in the art and realize and invention required by putting into practice.In detail in the claims, word " comprises " does not get rid of other element or step, and indefinite article " " is not got rid of multiple.Single processor or other unit can complete the function of the several projects described in claim.Some measure is documented in this simple fact in mutually different dependent claims and does not mean that the combination of these measures can not be used effectively.Computer program can store/be distributed on suitable media, the optical storage media such as provided together with other hardware or as the part of other hardware or solid state media, can also in other forms such as by internet or other wired or wireless telecommunication systems.
Claims (15)
1. software defined network (Softwaredefinednetworking, a SDN) controller (2,72), is characterized in that, comprising:
Communication unit (3), for communicating with networking component (5,10,30 to 36), and
Control unit (4),
Wherein said networking component (5,10,30 to 36) comprises at least one hybrid network assembly (5,32,35), described hybrid network assembly comprise at least one SDN compatibility Internet resources (6, C
1, C
2, F
1, F
2), and the Internet resources of at least one non-SDN compatibility (7, C
3, C
4, F
3, F
4),
Wherein said control unit (4) for control at least one SDN compatibility described Internet resources (6, C
1, C
2, F
1, F
2) and at least one non-SDN compatibility described Internet resources (7, C
3, C
4, F
3, F
4).
2. software defined network controller according to claim 1 (2,72),
It is characterized in that, described communication unit (3) for receive about described hybrid network assembly (5,32,35) described Internet resources (6,7, C
1, C
2, C
3, C
4, F
1, F
2, F
3, F
4) information,
Wherein said software defined network controller (2,72) comprises the database (8) for storing described received information further,
Wherein said control unit (4) for control based on described stored information described hybrid network assembly (5,32,35) described Internet resources (6,7, C
1, C
2, C
3, C
4, F
1, F
2, F
3, F
4).
3. software defined network controller according to claim 2 (2,72),
It is characterized in that, described information indicate described hybrid network assembly (5,32,35) respective network resource (6,7, C
1, C
2, C
3, C
4, F
1, F
2, F
3, F
4) be SDN compatibility Internet resources (6, C
1, C
2, F
1, F
2) be also non-SDN compatibility Internet resources (7, C
3, C
4, F
3, F
4).
4. the software defined network controller (2,72) according to any one of Claim 1-3,
It is characterized in that, the Internet resources of at least one SDN compatibility described (6, C
1, C
2, F
1, F
2) be software defined network queue or software defined network stream.
5. the software defined network controller (2,72) according to any one of Claim 1-3,
It is characterized in that, the Internet resources (C of at least one SDN compatibility described
1, C
2, F
1, F
2) be the network interface (C of SDN compatibility
1, C
2, F
1, F
2),
Internet resources (the C of at least one non-SDN compatibility wherein said
3, C
4, F
3, F
4) be the network interface (C of non-SDN compatibility
3, C
4, F
3, F
4).
6. software defined network controller according to claim 5 (2,72),
It is characterized in that, described control unit (4) is for controlling the network interface (C of at least one SDN compatibility described
1, C
2, F
1, F
2) and the network interface (C of at least one non-SDN compatibility described
3, C
4, F
3, F
4) with will at these network interfaces (C
1, C
2, C
3, C
4, F
1, F
2, F
3, F
4) the input bag at place is routed to other network interface (C of described hybrid network assembly (5,32,35)
1, C
2, C
3, C
4, F
1, F
2, F
3, F
4).
7. the software defined network controller (2,72) according to any one of claim 5 to 6,
It is characterized in that, the network interface (C of at least one SDN compatibility described
1, C
2, F
1, F
2) be open flows control port.
8. the software defined network controller (2,72) according to any one of claim 1 to 7,
It is characterized in that, described control unit (4) for control based on data model (80) the described SDN compatibility of described networking component (5,10,30 to 36) Internet resources (6, C
1, C
2, F
1, F
2) and non-SDN compatibility Internet resources (7, C
3, C
4, F
3, F
4), described data model comprises the abstract device entity (81) of each networking component (5,10,30 to 36) for being controlled by described control unit (4),
The each self-contained multiple abstract resource entity (83 to 86) of wherein said abstract device entity (81), described abstract resource entity (83 to 85) comprises abstract network interface (87) or abstract network queue (88) or abstract network stream (89)
Wherein said abstract resource entity (83 to 85) points to the specific embodiments of resource separately,
Wherein the described specific embodiments of resource comprises network interface, network queue and network flow.
9. software defined network controller according to claim 8 (2,72),
It is characterized in that, described communication unit (3) for receiving information from described given networking component (5,10,30 to 35) after being connected with given networking component (5,10,30 to 36), and described information is about the described Internet resources (6,7,11) available at described given networking component (5,10,30 to 35) place;
Wherein said control unit (4) for creating the abstract device entity (81) being used for described given networking component (5,10,30 to 35) in described data model (80) based on described received information.
10. the software defined network controller (2,72) according to any one of claim 1 to 9,
It is characterized in that, described hybrid network assembly (5,32,35) is the network interface (C comprising at least one SDN compatibility
1, C
2, F
1, F
2) and the port (C of at least one non-SDN compatibility
3, C
4, F
3, F
4) hybrid network switch (5,32,35) or hybrid network router.
11. 1 kinds of software defined network systems (1,71), it is characterized in that, comprise the software defined network controller (2,72) according to any one of claim 1 to 10, Management Controller (9) and at least two networking components (5,10,30 to 36)
Wherein said Management Controller (9) is for controlling described software defined network controller (2,72) by sending route requests to described software defined network controller (2,72).
12. software defined network systems according to claim 11 (1,71),
It is characterized in that, described route requests comprises two networking components in described networking component (5,10,30 to 36) separately, and data flow will start or stop between described two networking components.
13. software defined network systems according to claim 12 (1,71),
It is characterized in that, described software defined network controller (2,72) is the software defined network controller (2,72) according to any one of claim 5 to 10,
Wherein said software defined network controller (2,72) for start or terminate in described at least one hybrid network assembly (5,32,35) described network interface (6,7, C
1, C
2, C
3, C
4, F
1, F
2, F
3, F
4) and described networking component (11,30,31,33,34,36) network interface (11, A
1to A
4, B
1to B
4, D
1to D
4, E
1to E
4, G
1to G
4) between connection to start or to stop the described data flow of being specified by described route requests.
14. 1 kinds for using the method for software defined network controller (2,72) control software design define grid,
It is characterized in that, described software defined network comprises described software defined network controller (2,72) and networking component (5,10,30 to 36), described networking component comprises at least one hybrid network assembly (5,32,35)
Wherein said at least one hybrid network assembly (5,32,35) comprise at least one SDN compatibility Internet resources (6, C
1, C
2, F
1, F
2) and at least one non-SDN compatibility Internet resources (7, C
3, C
4, F
3, F
4),
Wherein said software defined network controller (2,72) control at least one SDN compatibility described Internet resources (6, C
1, C
2, F
1, F
2) and at least one non-SDN compatibility described Internet resources (7, C
3, C
4, F
3, F
4).
15. 1 kinds of computer programs with program code, described program code is used for performing method according to claim 14 when described computer program runs on computers.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2014/068710 WO2016034217A1 (en) | 2014-09-03 | 2014-09-03 | Software defined networking controller for hybrid network components and method for controlling a software defined network |
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| CN106375112A (en) * | 2016-08-25 | 2017-02-01 | 浪潮(北京)电子信息产业有限公司 | Dedicated software defined network system |
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