CN104811479B - A kind of creation method based on forwarding with the virtual network node of control separated protocol - Google Patents
A kind of creation method based on forwarding with the virtual network node of control separated protocol Download PDFInfo
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- CN104811479B CN104811479B CN201510149903.0A CN201510149903A CN104811479B CN 104811479 B CN104811479 B CN 104811479B CN 201510149903 A CN201510149903 A CN 201510149903A CN 104811479 B CN104811479 B CN 104811479B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
- H04L67/561—Adding application-functional data or data for application control, e.g. adding metadata
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/131—Protocols for games, networked simulations or virtual reality
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13531—Indexing scheme relating to selecting arrangements in general and for multiplex systems virtual networks - inc. PVN
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S379/00—Telephonic communications
- Y10S379/901—Virtual networks or virtual private networks
Abstract
The present invention discloses a kind of creation method based on forwarding with the virtual network node of control separated protocol.Network virtualization technology according to the change of user's request, can realize the reasonable distribution of bottom-layer network resource, allow Internet resources to obtain dynamic configuration and realize manageability.Each virtual network is a resource piece of bottom-layer network, is made up of virtual network node, virtual link.Create and configure the key that virtual network node is network virtualization.Virtual network node of the present invention is created by the way that the demand of application-specific is converted into the set created needed for dummy node, and the set is handed down into virtual network node-agent logic function block example, allows the Agent logic functional block example to create dummy node.The present invention compensate for the specific blank for creating virtual network node, and realize complete network node functions with specific combined with logic function block of control separated protocol based on forwarding, and the structure of virtual network node provides integrality during to realize that virtual net maps.
Description
Technical field
The invention belongs to network communication field, and in particular to a kind of virtual network section based on forwarding with control separated protocol
The creation method of point.
Background technology
With the development of internet business processes, conventional internet faces sky in novelty, autgmentability, managerial etc.
Preceding challenge, the existing framework of internet can not solve the contradiction between network performance and network autgmentability, can not adapt to network
The needs of emerging technology and framework patulous research, variation, network operation and the social need of business development can not be met well
The sustainability asked.The appearance of network virtualization solves the above mentioned problem of legacy network, and its essence is in a public physics
Multiple virtual networks are supported on network（Virtual Network）, each virtual network can use separate protocol entity
System, and reasonable distribution can be carried out to the node resource in whole network and link circuit resource according to the user's request of dynamic change.
Each virtual network is a resource piece of bottom-layer network, and it is made up of virtual network node and virtual link.Virtual network
Node carries out the forwarding capability of packet, and the function of physical network nodes is to provide a physics place.Network virtualization
Target seeks to realize the shared of underlying infrastructure resource, and in future network environment, resource is under the jurisdiction of different infrastructure
Provider（Infrastructure Provider, InP）, resource can with network extend and increase, subtract with partial failure
It is few；With virtual network build with remove request reach and virtual network in business demand change, resource it is occupied with
Release also dynamic change therewith.
At home and abroad start research boom, represent the SDN of new network architecture（Software Defined
Network, SDN）Technology takes full advantage of network virtualization technology, and one of its core concept is exactly that bottom-layer network is provided in logic
Source carries out burst or integration, realizes Optimum utilization and the scheduling of resource, meets different demands of the various applications for network.Turn
Hair and control separated protocol（Forwarding and Control Element Separation, ForCES）Flexible framework
Design, emphasizes network device internal control piece（Control Element, CE）And forwarding element（Forwarding Element,
FE）Between loose coupling relation, the node virtualization in the research of this and network virtualization is perfectly in harmony theoretically.It is empty in network
During planization, forwarding realizes complete network node functions with specific combined with logic function block of control separated protocol,
The structure of virtual network node provides a kind of new possibility during to realize virtual net mapping.
The content of the invention
The purpose of the present invention is to be directed to yet unresolved issue under the conditions of prior art, there is provided one kind is based on forwarding and control
The creation method of the virtual network node of separated protocol.
The inventive method comprises the following steps：
Step（1）：Controller creates the feature set of virtual network node according to needed for the demand of application-specific determines sign
Close Ι；
Described characteristic set Ι contents include：Logic function block message in virtual network node ID number, virtual network node
The topological connection relation of logic function block example in table, virtual network node；It is every in wherein described logic function block information table
The content of bar index entry, include logic function block ID number, logic function block title；
Step（2）：Controller is by step（1）The virtual network node diagnostic set Ι of required establishment uses forwarding and control
The virtual network section in the physical network nodes of the SET operation setting virtual network node to be created of message is configured in separated protocol
Point Agent logic functional block instance properties；
Described virtual network node-agent logic function block instance properties include：In the physical network nodes being currently located
The virtual network node created in the physical network nodes for virtual network node number higher limit can be created, being currently located is always individual
Number, virtual network informational table of nodes；Wherein described virtual network informational table of nodes includes the virtual network node letter created
Cease table and virtual network informational table of nodes to be created, the content of every index entry includes step in above-mentioned two information table（1）
In virtual network node diagnostic aggregates content I；
Step（3）：The virtual network node that virtual network node-agent logic function block Query By Example has currently created
Whether number, which has reached, can create virtual network node number higher limit；If having reached the number upper limit, separated in forwarding with control
Filling in the SET-RESPONSE message of message is configured in agreement and creates failure cause information, and jumps to step（7）；If do not reach
To the number upper limit, then step is continued executing with（4）；
Step（4）：Virtual network node-agent logic function block example judges the thing of current virtual network node to be created
Whether reason network node supports all steps（1）The all of logic function block information table patrol in virtual network node diagnostic set Ι
Functional block is collected, if in the presence of the logic function block do not supported, failure cause information is filled in SET-RESPONSE message, and jump
Go to step（7）；If supporting whole logic function blocks, step is continued executing with（5）；
Step（5）：It is empty according to logic function block example topological connection relation in current virtual network node characteristic set Ι
Intend network node Agent logic functional block example and create a new virtual network node, if the process of establishment produces exception, be
System is rolled back to state before establishment（That is step（2））, and failure cause information is filled in SET-RESPONSE message, jump to step
Suddenly（7）；If creating successfully, step is continued executing with（6）；
Step（6）：By the current virtual network node created in virtual network node-agent logic function block example
Total number property value adds 1, and filling creates successful information in SET-RESPONSE message；
Step（7）：The physical network nodes being currently located send SET-RESPONSE message to controller, and establishment terminates.
The present invention has the beneficial effect that：It is using the inventive method to carry out the creation method advantage of virtual network node
The specific blank for creating virtual network node is compensate for, and it is specific with logic function with control separated protocol based on forwarding
Block combination realize complete network node functions, for realize virtual net mapping when virtual network node structure provide completely
Property.
Brief description of the drawings
Fig. 1 is physical network nodes internal virtual network node structure；
Fig. 2 is the virtual network node creation method flow chart based on forwarding with control separated protocol；
Fig. 3 illustrates for application-specific.
Embodiment
The present invention is further analyzed with reference to specific embodiments and the drawings.
Embodiment
Fig. 1 illustrates physical network nodes internal virtual network node structure.An application-specific example shown in Fig. 3
The physical network nodes such as a, b, c, d, e, f in a Physical Network to be present.One is just started to have existed by physical network section
The virtual network node A1, B1, C1 that point creates.A1, B1, C1 form a virtual net VN1, as shown in Figure 3.On this basis
Create another virtual network VN2, it by dummy node B2, C2, D1, E1, F1 form, and these dummy nodes be respectively by
Physical network nodes b, c, d, e, f map out what is come.Fig. 3 represents how physical network nodes b creates virtual network node B2.Figure
2 represent the virtual network node creation method flow chart based on FoeCES agreements.The process is described more detail below.Controller table
Levy out establishment dummy node B2 characteristic set Ι={ virtual network node ID number, LFB information tables in virtual network node（LFB is
For logic function block）, the topological connection relation of LFB examples in virtual network node }.B2 virtual network node ID number is 5.
The content of every index entry includes LFB ID number, LFB names in LFB information tables, the LFB included in B2 ID number for 7,15,50,
80 }, LFB entitled { lfb7, lfb15, lfb50, lfb80 }.Wherein in B2 the topological connection relation of LFB examples for lfb7 →
lfb15→lfb50→lfb80}.The topological connection relation figure of LFB examples refers to the LFB connections in Fig. 1 in dummy node 1
Figure.Characteristic set Ι is filled into the configuration message in FoeCES agreements by controller, and sets physical network section using SET operation
Virtual network node-agent LFB examples (proxy module in the module such as Fig. 1) in point b.Wherein virtual network node-agent
The attribute of LFB examples includes：The virtual network node for virtual network node number higher limit maxnum can be created, currently being created
Total number num, virtual network informational table of nodes.Virtual network informational table of nodes therein includes the virtual network node created
Information table and virtual network informational table of nodes to be created, the content of every index entry are included in virtual network node diagnostic set
Hold I.Whether the current virtual network node number num of virtual network node-agent LFB Query By Examples, which has reached, can create virtually
Network node number higher limit maxnum.If having reached number higher limit maxnum, filled out in SET-RESPONSE message
Fill and create failure cause information, physical network nodes b sends SET-RESPONSE message to controller, and establishment terminates.If also
It is not above number higher limit maxnum, then virtual network node-agent LFB examples, which are judged as present physical network node b, is
All LFB in the no LFB information tables supported in all SET message in characteristic set I, if in the presence of the LFB not supported,
Failure cause information is filled in SET-RESPONSE message, physical network nodes b sends SET-RESPONSE message to controller,
Establishment terminates.If all support, then LFB example of the virtual network node-agent LFB examples in current signature set Ι connects
Connect relation and create a new virtual network node vnode1, if the process of establishment produces abnormal (abnormal conditions such as LFB3 input
Output port is simultaneously LFB4), then system is rolled back to state before establishment, and fills failure cause in SET-RESPONSE message
Information, physical network nodes b send SET-RESPONSE message to controller, and establishment terminates.
By the virtual network node total number num property values currently created in virtual network node-agent LFB examples
Add 1, and filling creates successful information in SET-RESPONSE message.Physical network nodes b sends SET- to controller
RESPONSE message, establishment terminate.Physical network nodes b is created that a new virtual network node B2 since then.Wherein C2,
D1, E1, F1 establishment are identical with B2.The dummy node needed for new virtual net VN2 is so created just all to create successfully.
It is that the present invention is not limited only to above-described embodiment, as long as meeting for limitation of the invention that above-described embodiment, which is not,
Application claims, belong to protection scope of the present invention.
Claims (1)
1. a kind of creation method based on forwarding with the virtual network node of control separated protocol, it is characterised in that this method includes
Following steps：
Step (1)：Controller creates virtual network node diagnostic set I according to needed for the demand of application-specific determines sign；
Described virtual network node diagnostic set I includes herein below：Patrolled in virtual network node ID number, virtual network node
The topological connection relation of logic function block example in volume function block information table, virtual network node；Wherein described logic function
The content of every index entry in block information table, include logic function block ID number, logic function block title；
Step (2)：Controller separates the virtual network node diagnostic set I created needed for step (1) using forwarding with control
The virtual network node generation in the physical network nodes of the SET operation setting virtual network node to be created of message is configured in agreement
Manage logic function block instance properties；
Described virtual network node-agent logic function block instance properties include：It can be created in the physical network nodes being currently located
The virtual network node total number that has been created in the physical network nodes for build virtual network node number higher limit, being currently located,
Virtual network informational table of nodes；Wherein described virtual network informational table of nodes includes the virtual network informational table of nodes created
With virtual network informational table of nodes to be created, the content of every index entry includes empty in step (1) in above-mentioned two information table
Intend network node characteristic set I content；
Step (3)：The virtual network node number that virtual network node-agent logic function block Query By Example has currently created is
It is no reached can create virtual network node number higher limit；If having reached the number upper limit, in forwarding and control separated protocol
Filling creates failure cause information in the SET-RESPONSE message of middle configuration message, and jumps to step (7)；It is if not up to individual
The number upper limit, then continue executing with step (4)；
Step (4)：Virtual network node-agent logic function block example judges the Physical Network of current virtual network node to be created
Whether network node supports all logic work(of logic function block information table in all steps (1) virtual network node diagnostic set I
Energy block, if in the presence of the logic function block do not supported, failure cause information is filled in SET-RESPONSE message, and jump to
Step (7)；If supporting whole logic function blocks, step (5) is continued executing with；
Step (5)：According to logic function block example topological connection relation, virtual net in current virtual network node characteristic set I
Network node-agent logic function block example creates a new virtual network node, if the process of establishment produces abnormal, system time
State, i.e. step (2) before creating are rolled to, and failure cause information is filled in SET-RESPONSE message, jumps to step
(7)；If creating successfully, step (6) is continued executing with；
Step (6)：The virtual network node currently created in virtual network node-agent logic function block example is always individual
Number attribute value adds 1, and filling creates successful information in SET-RESPONSE message；
Step (7)：The physical network nodes being currently located send SET-RESPONSE message to controller, and establishment terminates.
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| CN105681090B (en) * | 2016-01-26 | 2019-04-16 | 浙江工商大学 | A kind of data transfer device in ForCES network configuration layer |
| CN106100991B (en) * | 2016-06-02 | 2019-03-26 | 浙江工商大学 | A kind of forward floods method for parallel processing with data packet in control separation system |
| CN106101031B (en) * | 2016-06-02 | 2019-03-26 | 浙江工商大学 | It is a kind of to forward and packet fragmentation method for parallel processing in control separation system |
| CN115208753A (en) * | 2022-05-20 | 2022-10-18 | 海东道通科技发展股份有限公司 | Regional digital node construction method based on topological virtual network |
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