CN104811479A - Virtual network node establishing method based on forwarding and control separation protocol - Google Patents
Virtual network node establishing method based on forwarding and control separation protocol Download PDFInfo
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- CN104811479A CN104811479A CN201510149903.0A CN201510149903A CN104811479A CN 104811479 A CN104811479 A CN 104811479A CN 201510149903 A CN201510149903 A CN 201510149903A CN 104811479 A CN104811479 A CN 104811479A
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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 invention discloses a virtual network node establishing method based on a forwarding and control separation protocol. A network virtualization technology can achieve reasonable distribution of bottom-layer network resources according to changes of user demands, and dynamic allocation and manageability of the network resources can be achieved. Each virtual network is a resource piece of bottom-layer network and is composed of virtual network nodes and virtual links. Establishing and configuration of the virtual network nodes are the key to network virtualization. According to the virtual network node establishing, demands of specific application are converted to an assembly that is required by virtual node establishing, the assembly is sent down to a virtual network node agent logical function block example, and the virtual nodes are established by the agent logical function block example. By means of the virtual network node establishing method based on the forwarding and control separation protocol, blank of specific establishing of virtual network nodes is made up, a complete network node function is achieved by logical function block combination on basis of characteristics of the forwarding and control separation protocol, and integrity is provided for establishing of the virtual network nodes during virtual net mapping.
Description
Technical field
The invention belongs to network communication field, being specifically related to a kind of based on forwarding the creation method with the virtual network node controlling separated protocol.
Background technology
Along with the development of the Internet business processes, conventional internet novelty, autgmentability, managerial etc. in face unprecedented challenge, the existing framework of the Internet cannot solve the contradiction between network performance and extension of network, the needs of network emerging technology and framework patulous research cannot be adapted to, the sustainability of the variation of business development, network operation and social demand cannot be met well.The appearance of network virtualization solves the problems referred to above of legacy network, its essence is on a public physical network, support multiple virtual network (Virtual Network), each virtual network can use separate protocol architecture, and can carry out reasonable distribution according to the user's request of dynamic change to the node resource in whole network and link circuit resource.Each virtual network is a resource sheet 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.The target of network virtualization is exactly to realize sharing of underlying infrastructure resource, in future network environment, resource is under the jurisdiction of different infrastructure provider (Infrastructure Provider, InP), resource can increase along with extension of network, reduces along with partial failure; Ask to arrive and the change of business demand in virtual network with removing along with virtual network builds, resource occupied and discharge also dynamic change thereupon.
SDN(Software Defined Network that start research boom at home and abroad, that represent new network architecture, SDN) technology takes full advantage of network virtualization technology, one of its core concept is exactly carry out burst or integration to bottom-layer network resource in logic, realize Optimum utilization and the scheduling of resource, meet the different demands of various application for network.Forward and control separated protocol (Forwarding and Control Element Separation, ForCES) architecture design flexibly, emphasize network device internal control piece (Control Element, and forwarding element (Forwarding Element CE), FE) the loose coupling relation between, this is perfectly in harmony theoretically with the node virtualization in network virtualization research.In network virtualization process, forwarding and specific the combination with logic function block of control separated protocol realize complete network node functions, for the structure realizing virtual network node when virtual net maps provides a kind of possibility newly.
Summary of the invention
The object of the invention is for still an open question under prior art condition, providing a kind of based on forwarding the creation method with the virtual network node controlling separated protocol.
The inventive method comprises the steps:
Step (1): controller is determined to characterize the required characteristic set Ι creating virtual network node according to the demand of application-specific;
Described characteristic set Ι content comprises: the topological connection relation of logic function block example in logic function block information table, virtual network node in virtual network node ID number, virtual network node; In wherein said logic function block information table, the content of every bar index entry, comprises No. ID, logic function block, logic function block title;
Step (2): required for step (1) the virtual network node diagnostic set Ι created is used the virtual network node-agent logic function block instance properties forwarded with the physical network nodes of the SET operation setting virtual network node to be created controlling configuration messages in separated protocol by controller;
Described virtual network node-agent logic function block instance properties comprises: can create the total number of virtual network node, the virtual network informational table of nodes that have created in the physical network nodes at virtual network node number higher limit, current place in the physical network nodes at current place; Wherein said virtual network informational table of nodes comprises the virtual network informational table of nodes and virtual network informational table of nodes to be created that have created, and in above-mentioned two information tables, the content of every bar index entry all comprises the virtual network node diagnostic aggregates content I in step (1);
Step (3): whether the current virtual network node number created of virtual network node-agent logic function block Query By Example has reached and can create virtual network node number higher limit; If reached the number upper limit, then fill in the SET-RESPONSE message forwarding and control configuration messages in separated protocol and created failure cause information, and jumped to step (7); If do not reach the number upper limit, then continue to perform step (4);
Step (4): virtual network node-agent logic function block example judge the physical network nodes of current virtual network node to be created whether support all logic function blocks of logic function block information table in (1) virtual network node diagnostic set Ι in steps, if there is the logic function block do not supported, then in SET-RESPONSE message, fill failure cause information, and jump to step (7); If support whole logic function block, then continue to perform step (5);
Step (5): according to logic function block example topological connection relation in current virtual network node characteristic set Ι, virtual network node-agent logic function block example creates a new virtual network node, if constructive process produces abnormal, then system is rolled back to and creates front state (i.e. step (2)), and failure cause information is filled in SET-RESPONSE message, jump to step (7); If create successfully, then continue to perform step (6);
Step (6): the total number property value of the current virtual network node created in virtual network node-agent logic function block example is added 1, and in SET-RESPONSE message, fill establishment successful information;
Step (7): the physical network nodes at current place sends SET-RESPONSE message to controller, creates and terminates.
Beneficial effect of the present invention is as follows: the creation method advantage adopting the inventive method to carry out virtual network node is to compensate for the concrete blank creating virtual network node, and based on forwarding and controlling to combine with logic function block specific to separated protocol to realize complete network node functions, for the structure realizing virtual network node when virtual net maps provides integrality.
Accompanying drawing explanation
Fig. 1 is physical network nodes internal virtual network node structure;
Fig. 2 is based on the virtual network node creation method flow chart forwarded with control separated protocol;
Fig. 3 is application-specific citing.
Embodiment
Below in conjunction with specific embodiments and the drawings, the present invention is further analyzed.
Embodiment
Fig. 1 illustrates physical network nodes internal virtual network node structure.Shown in Fig. 3 an one application-specific example for there is a in a Physical Network, the physical network nodes such as b, c, d, e, f.Just start there is a virtual network node A1 created by physical network nodes, B1, C1.A1, B1, C1 form a virtual net VN1, as shown in Figure 3.Create another one virtual network VN2 on this basis, it is by dummy node B2, and C2, D1, E1, F1 are formed, and these dummy nodes are by physical network nodes b respectively, and c, d, e, f map out.Fig. 3 represents how physical network nodes b creates virtual network Node B 2.Fig. 2 represents the virtual network node creation method flow chart based on FoeCES agreement.Below by this process of detailed description.Controller symbolizes characteristic set Ι={ virtual network node ID number, LFB information table (LFB is logic function block) in virtual network node, the topological connection relation of LFB example in virtual network node } creating dummy node B2.The virtual network node ID number of B2 is 5.In LFB information table, the content of every bar index entry comprises No. ID, the LFB name of LFB, and No. ID of the LFB comprised in B2 is { 7,15,50,80}, LFB { lfb7, lfb15, lfb50, lfb80} by name.Wherein in B2, the topological connection relation of LFB example is { lfb7 → lfb15 → lfb50 → lfb80}.The topological connection relation figure of LFB example can with reference to the LFB connection layout in dummy node 1 in figure 1.Characteristic set Ι is filled into the configuration messages in FoeCES agreement by controller, and uses the virtual network node-agent LFB example (this module is as the proxy module in Fig. 1) in SET operation setting physical network nodes b.Wherein the attribute of virtual network node-agent LFB example comprises: can create virtual network node number higher limit maxnum, current the created total number num of virtual network node, virtual network informational table of nodes.Virtual network informational table of nodes wherein comprises the virtual network informational table of nodes and virtual network informational table of nodes to be created that have created, and the content of every bar index entry comprises virtual network node diagnostic aggregates content I.Whether the current virtual network node number num of virtual network node-agent LFB Query By Example has reached and can create virtual network node number higher limit maxnum.If reached number higher limit maxnum, then fill in SET-RESPONSE message and create failure cause information, physical network nodes b has sent SET-RESPONSE message to controller, creates and terminates.If also do not exceed number higher limit maxnum, so virtual network node-agent LFB example just judges all LFB in the LFB information table whether present physical network node b supports in all SET message in characteristic set I, if there is the LFB do not supported, then in SET-RESPONSE message, fill failure cause information, physical network nodes b sends SET-RESPONSE message to controller, creates and terminates.If all supported, so virtual network node-agent LFB example creates a new virtual network node vnode1 according to the LFB instant teaching relation in current signature set Ι, if constructive process produces abnormal (abnormal conditions such as the input/output port of LFB3 is LFB4) simultaneously, then system is rolled back to and creates front state, and failure cause information is filled in SET-RESPONSE message, physical network nodes b sends SET-RESPONSE message to controller, creates and terminates.
The total number num property value of current created virtual network node in virtual network node-agent LFB example is added 1, and in SET-RESPONSE message, fills establishment successful information.Physical network nodes b sends SET-RESPONSE message to controller, creates and terminates.The physical network nodes b virtual network Node B 2 that just establishment one is new since then.Wherein the establishment of C2, D1, E1, F1 is identical with B2.So creating the new dummy node needed for virtual net VN2 just all creates successfully.
Above-described embodiment is not that the present invention is not limited only to above-described embodiment for restriction of the present invention, as long as meet application claims, all belongs to protection scope of the present invention.
Claims (1)
1., based on forwarding the creation method with the virtual network node controlling separated protocol, it is characterized in that the method comprises the following steps:
Step (1): controller is determined to characterize the required characteristic set Ι creating virtual network node according to the demand of application-specific;
Described characteristic set Ι content comprises: the topological connection relation of logic function block example in logic function block information table, virtual network node in virtual network node ID number, virtual network node; In wherein said logic function block information table, the content of every bar index entry, comprises No. ID, logic function block, logic function block title;
Step (2): required for step (1) the virtual network node diagnostic set Ι created is used the virtual network node-agent logic function block instance properties forwarded with the physical network nodes of the SET operation setting virtual network node to be created controlling configuration messages in separated protocol by controller;
Described virtual network node-agent logic function block instance properties comprises: can create the total number of virtual network node, the virtual network informational table of nodes that have created in the physical network nodes at virtual network node number higher limit, current place in the physical network nodes at current place; Wherein said virtual network informational table of nodes comprises the virtual network informational table of nodes and virtual network informational table of nodes to be created that have created, and in above-mentioned two information tables, the content of every bar index entry all comprises the virtual network node diagnostic aggregates content I in step (1);
Step (3): whether the current virtual network node number created of virtual network node-agent logic function block Query By Example has reached and can create virtual network node number higher limit; If reached the number upper limit, then fill in the SET-RESPONSE message forwarding and control configuration messages in separated protocol and created failure cause information, and jumped to step (7); If do not reach the number upper limit, then continue to perform step (4);
Step (4): virtual network node-agent logic function block example judge the physical network nodes of current virtual network node to be created whether support all logic function blocks of logic function block information table in (1) virtual network node diagnostic set Ι in steps, if there is the logic function block do not supported, then in SET-RESPONSE message, fill failure cause information, and jump to step (7); If support whole logic function block, then continue to perform step (5);
Step (5): according to logic function block example topological connection relation in current virtual network node characteristic set Ι, virtual network node-agent logic function block example creates a new virtual network node, if constructive process produces abnormal, then system is rolled back to and creates front state (i.e. step (2)), and failure cause information is filled in SET-RESPONSE message, jump to step (7); If create successfully, then continue to perform step (6);
Step (6): the total number property value of the current virtual network node created in virtual network node-agent logic function block example is added 1, and in SET-RESPONSE message, fill establishment successful information;
Step (7): the physical network nodes at current place sends SET-RESPONSE message to controller, creates and terminates.
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| CN106100991A (en) * | 2016-06-02 | 2016-11-09 | 浙江工商大学 | A kind of forwarding floods method for parallel processing with packet in control piece-rate system |
| CN106101031A (en) * | 2016-06-02 | 2016-11-09 | 浙江工商大学 | A kind of forwarding and packet fragmentation method for parallel processing in control piece-rate system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105681090A (en) * | 2016-01-26 | 2016-06-15 | 浙江工商大学 | Data conversion method in ForCES (Forwarding and Control Element Separation) network configuration layer |
| 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 |
| CN106100991A (en) * | 2016-06-02 | 2016-11-09 | 浙江工商大学 | A kind of forwarding floods method for parallel processing with packet in control piece-rate system |
| CN106101031A (en) * | 2016-06-02 | 2016-11-09 | 浙江工商大学 | A kind of forwarding and packet fragmentation method for parallel processing in control piece-rate system |
| 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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