CN105407056A - Method and system for establishing service chain in software-defined network - Google Patents
Method and system for establishing service chain in software-defined network Download PDFInfo
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- CN105407056A CN105407056A CN201410471510.7A CN201410471510A CN105407056A CN 105407056 A CN105407056 A CN 105407056A CN 201410471510 A CN201410471510 A CN 201410471510A CN 105407056 A CN105407056 A CN 105407056A
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Abstract
The invention discloses a method and system for establishing a service chain in a software-defined network. The method comprises the steps of configuring virtual machines in an operating server, and configuring service function applications in the virtual machines; importing network traffic into each virtual machine and processing the network traffic via the service function applications; and starting an expansion server when no virtual machine is idle and importing the network traffic into virtual machines in the expansion server for processing. The method and system for establishing the service chain in the software-defined network can ensure the network traffic in the service chain to be controllable and identifiable, achieve efficient service pipelining processing and resource pool load balancing capabilities through function pre-installation, traffic scheduling modularization and load level extension, greatly improve service chain functions and deployment, operation and maintenance capabilities of the network, and can provide a technical scheme for large network carriers and cloud service providers to deploy various new types of network service functions flexibly at the edge of an IP network.
Description
Technical field
The present invention relates to technical field of data transmission, particularly relate to the business chain method for building up in a kind of software defined network and system.
Background technology
Software defined network SDN (SoftwareDefinedNetwork) is a kind of new network innovation framework, and its core technology OpenFlow by network equipment chain of command and data surface being separated, thus achieves the flexible control of network traffics.The virtual NFV technology of network function, by using general hardware platform and the Intel Virtualization Technologies such as x86 server, carries various network services function, thus reduces the dependence to the network-specific equipment of costliness.Business chain (ServiceChaining) is a wherein important application, it is by generic server hardware and the network virtualization software operated in server, by multiclass network business function (App), as: CGN, fire compartment wall, DPI etc., operate in virtual machine (VM), and form the chain topology of serial connection, there is provided a kind of telecommunication service process framework of high expansion, for structure novel I P intelligence edge device (BRAS, PGW etc.) provides realization rate.At present, there is several difficult point in Virtual network operator: virtual service function load balancing, virtual network flow scheduling in the establishment of business chain, and how to simplify O&M and function rapid deployment, and, the research of industry to business chain mostly is functional descriptions, lacks a kind of concrete methods of realizing.
Summary of the invention
In view of this, the technical problem that the present invention will solve is to provide the business chain method for building up in a kind of software defined network, can complete flow scheduling and can realize load level expansion.
A business chain method for building up in software defined network, comprising: configuring virtual machine in runtime server, and configuration service function application in described virtual machine; Network service traffic is imported virtual machine described in each and applied by business function and process; When there is no idle described virtual machine, start dilatation server and the virtual machine imported by network service traffic in described dilatation server processes.
According to one embodiment of present invention, further, in described runtime server, the Microsoft Loopback Adapter of configuration operation in virtual machine, virtual switch and dummy connector is gone back; Described Microsoft Loopback Adapter hop-by-hop series connection, described virtual switch is communicated by the physical network of described Microsoft Loopback Adapter with described runtime server outside; Each port of described virtual switch creates described dummy connector, and described dummy connector connects described virtual switch, host operating system and described Microsoft Loopback Adapter, can between described virtual machine forwarding data.
According to one embodiment of present invention, further, by server hardware resource distribution be: runtime server and dilatation server; Described runtime server processes in real time to network service traffic, and described dilatation server is used for backing up power system capacity; Wherein, when described runtime server load not 100% take time, then do not start described dilatation server.
According to one embodiment of present invention, further, the virtual machine in pre-configured described runtime server and described dilatation server and operate in business function application in virtual machine, Microsoft Loopback Adapter, virtual switch and dummy connector; Described business function application comprises: DPI, NAT, fire compartment wall.
According to one embodiment of present invention, further, described network service traffic needs to process through multiple business function application successively; Determine business chain streamline and configuration service chain flow scheduling strategy, needing from first the business function application performed, according to the execution sequence of described multiple business function application, determine position and the execution sequence of corresponding execution virtual machine successively, the virtual switch that configuration is corresponding and dummy connector, and determine the physical server at described execution virtual machine place; When one or more described multiple business function does not all have corresponding execution virtual machine in described runtime server, then activate described dilatation server, and the execution virtual machine that configuration is corresponding with one or more described multiple business function in described dilatation server, and performing the business function application of configuration needs execution in virtual machine.
According to one embodiment of present invention, further, when with the business function of adjacent execution apply corresponding 2 perform virtual machine all on Same Physical server time, then determine in other physical server at execution virtual machine corresponding to the business function application of rear execution.
According to one embodiment of present invention, further, according to the business chain flow scheduling strategy of the business chain streamline determined and configuration, each customer flow is imported to respectively each and perform in virtual machine, and applied by the business function performed in virtual machine and process; When the resource utilization of dilatation service server reaches threshold value, be then runtime server by this dilatation server settings, and open new dilatation server.
The technical problem that the present invention will solve is to provide the business chain method for building up in a kind of software defined network, can complete flow scheduling and can realize load level expansion.
A business chain system in software defined network, comprising: business chain control device, for configuring virtual machine in runtime server, and configuration service function application in described virtual machine; Business chain retransmission unit, comprising: runtime server, processes for network service traffic being imported virtual machine described in each and being applied by business function; Dilatation server, starts for triggering when not having idle described virtual machine, and network service traffic is imported virtual machine processes.
According to one embodiment of present invention, further, the Microsoft Loopback Adapter of configuration operation in virtual machine, virtual switch and dummy connector is gone back in described runtime server; Wherein, described Microsoft Loopback Adapter hop-by-hop series connection, described virtual switch is communicated by the physical network of described Microsoft Loopback Adapter with described runtime server outside; Each port of described virtual switch creates described dummy connector, and described dummy connector connects described virtual switch, host operating system and described Microsoft Loopback Adapter, can between described virtual machine forwarding data.
According to one embodiment of present invention, further, described business chain control device, also for by server hardware resource distribution being: runtime server and dilatation server; Described runtime server processes in real time to network service traffic, and described dilatation server is used for backing up power system capacity; Wherein, when described runtime server load not 100% take time, then do not allow trigger start described dilatation server.
According to one embodiment of present invention, further, described business chain control device, also for the virtual machine in pre-configured described runtime server and described dilatation server and operate in business function application in virtual machine, Microsoft Loopback Adapter, virtual switch and dummy connector; Described business function application comprises: DPI, NAT, fire compartment wall.
According to one embodiment of present invention, further, described business chain control device, also processing through multiple business function application successively for needing according to described network service traffic, determining business chain streamline and configuration service chain flow scheduling strategy; Described business chain control device needs from first the business function application performed, according to the execution sequence of described multiple business function application, determine position and the execution sequence of corresponding execution virtual machine successively, the virtual switch that configuration is corresponding and dummy connector, and determine the physical server at described execution virtual machine place; When one or more described multiple business function does not all have corresponding execution virtual machine in described runtime server, then described business chain control device activates described dilatation server, and the execution virtual machine that configuration is corresponding with one or more described multiple business function in described dilatation server, and performing the business function application of configuration needs execution in virtual machine.
According to one embodiment of present invention, further, described business chain control device, also for when with the business function of adjacent execution apply corresponding 2 perform virtual machine all on Same Physical server time, determine in other physical server at execution virtual machine corresponding to the business function application of rear execution.
According to one embodiment of present invention, further, described runtime server, also for the business chain flow scheduling strategy according to the business chain streamline determined and configuration, each customer flow is imported to respectively each to perform in virtual machine, and processed by the business function application performed in virtual machine; Described business chain control device, also for when the resource utilization of dilatation service server reaches threshold value, is then runtime server by this dilatation server settings, and opens new dilatation server.
Business chain method for building up in software defined network of the present invention and system, can ensure that the network traffics in business chain can control identifiable design, by function prepackage, flow scheduling modularization, load level expansion, achieve efficient business pipeline processes and resource pool load balance ability, the deployment of significant increase business chain function and network thereof and O&M ability.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the flow chart of an embodiment according to the business chain method for building up in software defined network of the present invention;
Fig. 2 is the flow chart of the business chain algorithm of an embodiment according to the business chain method for building up in software defined network of the present invention;
Fig. 3 is the schematic diagram of the dummy connector of an embodiment according to the business chain method for building up in software defined network of the present invention;
Fig. 4 is the schematic diagram of the resource allocation of an embodiment according to the business chain method for building up in software defined network of the present invention;
Fig. 5 is the schematic diagram of the use dilatation resource of an embodiment according to the business chain method for building up in software defined network of the present invention;
Fig. 6 is the schematic diagram of an embodiment according to the business chain system in software defined network of the present invention;
Fig. 7 is the schematic diagram of the practical application of an embodiment according to the business chain system in software defined network of the present invention.
Embodiment
With reference to the accompanying drawings the present invention is described more fully, exemplary embodiment of the present invention is wherein described.Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.Below in conjunction with each figure and embodiment, many-sided description is carried out to technical scheme of the present invention.
Fig. 1 is the flow chart of an embodiment according to the business chain method for building up in software defined network of the present invention, as shown in Figure 1:
Step 101, configuring virtual machine in runtime server, and configuration service function application in virtual machine.
Step 102, imports each virtual machine and is processed by business function application by network service traffic.
Step 103, when not having idle virtual machine, starts dilatation server and the virtual machine imported in dilatation server processes by network service traffic.
Business chain method for building up in software defined network of the present invention, for structure NFV business chain provides a kind of efficient implementation, adopt load distribution scheme and flux and flow direction control method in a kind of simple and practical virtual environment, ensure that the network traffics in business chain can control identifiable design, all kinds of new network business function can be disposed for catenet operator and cloud service provider at IP network border elastic and technical scheme is provided.
In one embodiment, in runtime server, the Microsoft Loopback Adapter of configuration operation in virtual machine, virtual switch and dummy connector is gone back.Microsoft Loopback Adapter hop-by-hop is connected, and virtual switch is communicated by the physical network of Microsoft Loopback Adapter with runtime server outside.
Each port of virtual switch creates dummy connector, dummy connector connect virtual switch, host operating system and Microsoft Loopback Adapter, can between virtual machine forwarding data.
In one embodiment, as shown in Figure 4, by server hardware resource distribution be: runtime server (operation Resource Server) 31 and dilatation server (dilatation Resource Server) 32.Runtime server 31 pairs of network service traffics process in real time, and dilatation server 32 is for backing up power system capacity.
In one embodiment, the virtual machine in pre-configured runtime server 31 and dilatation server 32 and operate in business function application in virtual machine, Microsoft Loopback Adapter, virtual switch and dummy connector etc.Business function application comprises: DPI, NAT, fire compartment wall etc.
In one embodiment, network service traffic needs to process through multiple business function application successively, determine business chain streamline and configuration service chain flow scheduling strategy, needing from first the business function application performed, according to the execution sequence that multiple business function is applied, determine position and the execution sequence of corresponding execution virtual machine successively, the virtual switch that configuration is corresponding and dummy connector, and determine the physical server performing virtual machine place.
When one or more business function does not all have corresponding execution virtual machine in runtime server, then activate dilatation server, and the execution virtual machine that configuration is corresponding with one or more business function in dilatation server, and performing the business function application of configuration needs execution in virtual machine.
When with the business function of adjacent execution apply corresponding 2 perform virtual machine all on Same Physical server time, then determine in other physical server at execution virtual machine corresponding to the business function application of rear execution.
In one embodiment, whole server hardware resource is divided into 2 parts: run resource and dilatation resource, i.e. runtime server and dilatation server.The method that all resources adopt full-service pre-configured, namely in all servers (runtime server and dilatation server), all open the overall network business function that all needs are used, as DPI, NAT, fire compartment wall etc., avoid the startup time delay of opening network business virtualization software.
The NIC of all physical servers carries out hop-by-hop series connection.Constructing virtual connector, by the allocation models that network traffics flow to.As shown in Figure 3, on each port of virtual switch vSwitch, create dummy connector, there are 4 subports in dummy connector inside, each subport is divided into outlet/entrance, docks up and downlink traffic respectively.
Fig. 2 is the flow chart of the business chain algorithm of an embodiment according to the business chain method for building up in software defined network of the present invention.
Assuming that customer flow requirement is applied through multiple business function, i.e. App1, App2 ... AppN altogether N number of Network function should be used for processing, then the stream table configuration of flow scheduling and vSwitch thereof, should perform following operation:
Step 201, from first App, searches corresponding VM position and order.
Step 202, mates from the 1st VM of the 1st server.
Step 203, judges whether to find corresponding VM, if found, enters step 206, judges VM that this VM navigated to an and upper App locates whether on same physical server.
If coexist, a station server, then enter step 207, moves to next station server, avoids flow to concentrate in 1 station server.
Otherwise enter step 208, record this VM position, and configure vSwitch and dummy connector, otherwise search the next VM in this server.
This server does not all find, then judge whether current server is finally available operation resource, if not, moves to next station server searched and be in series with it.Otherwise, perform step 204, activate dilatation server, for this App distributes VM.
Step 209, determines whether AppN, if so, then terminates to run; Otherwise jump to step 205.
This advantage setting up the algorithm of business chain is: method is simple, be easy to operation maintenance, load balancing and App locate and carry out simultaneously, always sequentially can find available App resource, avoid producing reverse business chain path, inverse path can cause the network traffics between server to come and go in a large number between App, causes the serious waste of server network interface card bandwidth.
In one embodiment, as shown in Figure 5, the service traffics of user are imported, the App process that each customer flow will import to according to collocation strategy in each VM respectively.When certain customers can not find idle VM and corresponding A pp thereof, then trigger and start dilatation server, flow imports the VM process process in dilatation server.
When the resource utilization of dilatation facility reaches threshold value, as 50% is equivalent, then start by dilatation resource settings for running resource, and open new dilatation resource.Otherwise what stop importing increasing newly uses service traffics.
In the methods described above, avoid complicated load balance scheduling algorithm, but taken into account behavior extension requirement simultaneously, scheduling is flowed to customer flow and adopts templating operation, dispose and O&M simply clear.
As shown in Figure 6, the invention provides the business chain system in a kind of software defined network, comprising: business chain control device 41 and business chain retransmission unit 42.Business chain retransmission unit 42 comprises: runtime server 421 and dilatation server 422.
Business chain control device 41 configuring virtual machine in runtime server, and configuration service function application in virtual machine.Network service traffic is imported each virtual machine and is applied by business function and processes by runtime server 421.Dilatation server 422 triggers when not having idle virtual machine and starts, and network service traffic is imported virtual machine processes.
In one embodiment, business chain system in software defined network is realizing on framework, be divided into business chain control device and business chain retransmission unit 2 parts, business chain retransmission unit is then made up of the external physical network etc. of x86 server and connection server, wherein, there is the assemblies such as virtual machine (VM), the App operating in VM inside, physical network card (NIC), virtual switch (vSwitch), dummy connector in server internal.
In one embodiment, go back the Microsoft Loopback Adapter of configuration operation in virtual machine, virtual switch and dummy connector in runtime server 421, Microsoft Loopback Adapter hop-by-hop is connected, and virtual switch is communicated by the physical network of Microsoft Loopback Adapter with runtime server outside.Each port of virtual switch creates dummy connector, dummy connector connect virtual switch, host operating system and Microsoft Loopback Adapter, can between virtual machine forwarding data.
In one embodiment, server hardware resource distribution is by business chain control device 41: runtime server (operation Resource Server) 421 and dilatation server (dilatation Resource Server) 422.Virtual machine in the pre-configured runtime server 421 of business chain control device 41 and dilatation server 422 and operate in business function application in virtual machine, Microsoft Loopback Adapter, the assembly such as virtual switch and dummy connector.Business function application comprises: DPI, NAT, fire compartment wall etc.
In one embodiment, business chain control device 41 needs to process through multiple business function application successively according to network service traffic, determines business chain streamline and configuration service chain flow scheduling strategy.Business chain control device 41 needs from first the business function application performed, according to the execution sequence that multiple business function is applied, determine position and the execution sequence of corresponding execution virtual machine successively, the virtual switch that configuration is corresponding and dummy connector, and determine the physical server performing virtual machine place.
When one or more business function does not all have corresponding execution virtual machine in runtime server, then business chain control device 41 activates dilatation server, and the execution virtual machine that configuration is corresponding with one or more business function in dilatation server, and performing the business function application of configuration needs execution in virtual machine.
When with the business function of adjacent execution apply corresponding 2 perform virtual machine all on Same Physical server time, business chain control device 41 is determined at execution virtual machine corresponding to the business function application of rear execution in other physical server.
Each customer flow, according to the business chain flow scheduling strategy of the business chain streamline determined and configuration, is imported to each and performs in virtual machine by runtime server 421 respectively, and is applied by the business function performed in virtual machine and process.When the resource utilization of dilatation service server reaches threshold value, then this dilatation server settings is runtime server by business chain control device 41, and opens new dilatation server.
In one embodiment, as shown in Figure 7, business chain is applied by DPI and NAT2 business function and is formed.The 51 pairs of business chain initialization of business chain control device.Resource pool initial configuration: owing to there are 2 business modules, then resource pool can consider outfit 2 runtime servers and 1 dilatation server 53, and every platform physical server configures 1 virtual switch.
Resource pool opens all business modules: DPI and NAT two modules, and each business module monopolizes 1 VM, and 2 VM in every platform physical server run DPI, NAT respectively.
When business chain control device 51 receives the request of an establishment business chain streamline, carry out Business Stream waterline to determine: first through DPI process, then do NAT process, then after execution sequence matching algorithm, DPI function is distributed in the 1st physical server, and nat feature is allocated in the 2nd station server; Vice versa.
Business chain control device 51 configuration virtual Network path: create dummy connector in virtual switch, connects NIC, HostNIC and vSwitch of VM, meets pipeline processes order.
Business chain control device 51 configures physical network encapsulation: adopt necessary many tenants/business insulation package customer flow, as: MPLS, GRE or VLAN.
Import customer flow flow, perform and the load performance of each VM is monitored.After all operation resource loads are fully loaded, start dilatation server 53, when dilatation server 53 resource utilization reaches 50% be, need newly-increased 1 new dilatation server, open all business modules, as DPI and NAT module equally.Meanwhile, original dilatation server 53 is set to runtime server.
By the business chain method for building up in software defined network provided by the invention and system, propose the constitution realization method of business chain and a kind of elastomeric business platform framework is provided, ensure that the network traffics in business chain can control identifiable design, pre-installed by function, flow scheduling modularization, load level is expanded, achieve efficient business pipeline processes and resource pool load balance ability, the deployment of significant increase business chain function and network thereof and O&M ability, all kinds of new network business function can be disposed for catenet operator and cloud service provider at IP network border elastic and technical scheme is provided.
Method and system of the present invention may be realized in many ways.Such as, any combination by software, hardware, firmware or software, hardware, firmware realizes method and system of the present invention.Said sequence for the step of method is only to be described, and the step of method of the present invention is not limited to above specifically described order, unless specifically stated otherwise.In addition, in certain embodiments, can be also record program in the recording medium by the invention process, these programs comprise the machine readable instructions for realizing according to method of the present invention.Thus, the present invention also covers the recording medium stored for performing the program according to method of the present invention.
Description of the invention provides in order to example with for the purpose of describing, and is not exhaustively or limit the invention to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Selecting and describing embodiment is in order to principle of the present invention and practical application are better described, and enables those of ordinary skill in the art understand the present invention thus design the various embodiments with various amendment being suitable for special-purpose.
Claims (14)
1. the business chain method for building up in software defined network, is characterized in that, comprising:
Configuring virtual machine in runtime server, and configuration service function application in described virtual machine;
Network service traffic is imported virtual machine described in each and applied by business function and process;
When there is no idle described virtual machine, start dilatation server and the virtual machine imported by network service traffic in described dilatation server processes.
2. the method for claim 1, is characterized in that:
The Microsoft Loopback Adapter of configuration operation in virtual machine, virtual switch and dummy connector is gone back in described runtime server;
Described Microsoft Loopback Adapter hop-by-hop series connection, described virtual switch is communicated by the physical network of described Microsoft Loopback Adapter with described runtime server outside;
Each port of described virtual switch creates described dummy connector, and described dummy connector connects described virtual switch, host operating system and described Microsoft Loopback Adapter, can between described virtual machine forwarding data.
3. method as claimed in claim 1 or 2, is characterized in that:
By server hardware resource distribution be: runtime server and dilatation server;
Described runtime server processes in real time to network service traffic, and described dilatation server is used for backing up power system capacity; Wherein, when described runtime server load not 100% take time, then do not start described dilatation server.
4. method as claimed in claim 3, is characterized in that:
Virtual machine in pre-configured described runtime server and described dilatation server and the assembly operated in virtual machine, comprising: business function application, Microsoft Loopback Adapter, virtual switch and dummy connector; Described business function application comprises: DPI, NAT, fire compartment wall.
5. method as claimed in claim 4, is characterized in that:
Described network service traffic needs to process through multiple business function application successively, determine business chain streamline and configuration service chain flow scheduling strategy, needing from first the business function application performed, according to the execution sequence of described multiple business function application, determine position and the execution sequence of corresponding execution virtual machine successively, the virtual switch that configuration is corresponding and dummy connector, and determine the physical server at described execution virtual machine place;
When one or more described multiple business function is applied in described runtime server the execution virtual machine not having correspondence, then activate described dilatation server, and configuration applies corresponding execution virtual machine with one or more described multiple business function in described dilatation server, and performing the business function application of configuration needs execution in virtual machine.
6. method as claimed in claim 5, is characterized in that:
When with the business function of adjacent execution apply corresponding 2 perform virtual machine all on Same Physical server time, then determine in other physical server at execution virtual machine corresponding to the business function application of rear execution.
7. method as claimed in claim 5, is characterized in that:
According to the business chain flow scheduling strategy of the business chain streamline determined and configuration, each customer flow is imported to respectively each and perform in virtual machine, and applied by the business function performed in virtual machine and process;
When the resource utilization of dilatation service server reaches threshold value, be then runtime server by this dilatation server settings, and open new dilatation server.
8. the business chain system in software defined network, is characterized in that, comprising:
Business chain control device, for configuring virtual machine in runtime server, and configuration service function application in described virtual machine;
Business chain retransmission unit, comprising:
Runtime server, processes for network service traffic being imported virtual machine described in each and being applied by business function;
Dilatation server, starts for triggering when not having idle described virtual machine, and network service traffic is imported virtual machine processes.
9. system as claimed in claim 8, is characterized in that:
Described runtime server, also for the Microsoft Loopback Adapter of configuration operation in virtual machine, virtual switch and dummy connector; Wherein, described Microsoft Loopback Adapter hop-by-hop series connection, described virtual switch is communicated by the physical network of described Microsoft Loopback Adapter with described runtime server outside; Each port of described virtual switch creates described dummy connector, and described dummy connector connects described virtual switch, host operating system and described Microsoft Loopback Adapter, can between described virtual machine forwarding data.
10. system as claimed in claim 8 or 9, is characterized in that:
Described business chain control device, also for by server hardware resource distribution being: runtime server and dilatation server; Described runtime server processes in real time to network service traffic, and described dilatation server is used for backing up power system capacity; Wherein, when described runtime server load not 100% take time, then do not allow trigger start described dilatation server.
11. systems as claimed in claim 10, is characterized in that:
Described business chain control device, also for the virtual machine in pre-configured described runtime server and described dilatation server and operate in assembly in virtual machine, comprising: business function application, Microsoft Loopback Adapter, virtual switch and dummy connector; Described business function application comprises: DPI, NAT, fire compartment wall.
12. systems as claimed in claim 11, is characterized in that:
Described business chain control device, also processing through multiple business function application successively for needing according to described network service traffic, determining business chain streamline and configuration service chain flow scheduling strategy;
Described business chain control device needs from first the business function application performed, according to the execution sequence of described multiple business function application, determine position and the execution sequence of corresponding execution virtual machine successively, the virtual switch that configuration is corresponding and dummy connector, and determine the physical server at described execution virtual machine place;
When one or more described multiple business function does not all have corresponding execution virtual machine in described runtime server, then described business chain control device activates described dilatation server, and the execution virtual machine that configuration is corresponding with one or more described multiple business function in described dilatation server, and performing the business function application of configuration needs execution in virtual machine.
13. systems as claimed in claim 12, is characterized in that:
Described business chain control device, also for when with the business function of adjacent execution apply corresponding 2 perform virtual machine all on Same Physical server time, determine in other physical server at execution virtual machine corresponding to the business function application of rear execution.
14. systems as claimed in claim 12, is characterized in that:
Described runtime server, also for the business chain flow scheduling strategy according to the business chain streamline determined and configuration, imports to each respectively and performs in virtual machine by each customer flow, and is processed by the business function application performed in virtual machine;
Described business chain control device, also for when the resource utilization of dilatation service server reaches threshold value, is then runtime server by this dilatation server settings, and opens new dilatation server.
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