CN104735000A - OpenFlow signaling control method and device - Google Patents
OpenFlow signaling control method and device Download PDFInfo
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- H04L45/00—Routing or path finding of packets in data switching networks
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Abstract
The invention discloses an OpenFlow signaling control method and device. The method comprises the steps that a switch determines reporting grades of reported messages according to arithmetic logic in a message processing flow table predefined by a controller, wherein the reporting grades comprise a high priority and a low priority and the message processing flow table comprises actuating logic; under the condition that the reporting grade is the high priority, the switch actuates first actuating logic, corresponding to the high priority, in the actuating logic, under the condition that the reporting grade is the low priority, the switch actuates second actuating logic, corresponding to the low priority, in the actuating logic, the reported messages are sent to the controller in real time in the first actuating logic, and the reported messages are not sent to the controller in real time in the second actuating logic. Through the method and device, the effect of avoiding the situation that the performance of the controller is reduced due to a large amount of repeated signaling processing is achieved.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of OpenFlow signaling control method and device.
Background technology
Stanford Univ USA proposed OpenFlow agreement in 2008, this agreement adopts and forwards/control separation architecture, external chain of command entity adopts OpenFlow protocol integrated test system to forward face equipment and realizes various forwarding logic, and the major function forwarding face equipment is exactly perform controlled forwarding according to the stream table that OpenFlow controller issues, its behavior is standardized: receive a message, take out its head L2/L3/L4 related words segment value, using it as keyword search stream table, after matching a list item, according to the instruction set in contents in table, message field (MFLD) is processed, after be forwarded to a certain logic OR physical port according to instruction.The further evolution of this agreement thought, be called SDN(Software Defined Network, software defined network technology), namely software programming can be adopted to realize the network application of various complexity at chain of command, and forward face equipment without the need to any change, because chain of command adopts generic server+general-purpose operating system, and general software programming instrument can be used, the scripting programming language that Python also can be used such realizes, this makes the support of new procotol become very simple, and new technology deployment cycle shortens greatly.
According to ONF(Open Networking Foundation, open network foundation) the OpenFlow agreement of normal structure definition describes, OpenFlow comprises the message of three types: Controller-to-Switch(controller is to switch) message, Asynchronous(be asynchronous) message, Symmetric(symmetry) message.Wherein, Controller-to-Switch message is Controller(controller) to Switch(switch) message that sends, optional exist response message.Asynchronous message is the message that Switch sends to Controller, for reporting the port status of Switch, error message, the signaling that cannot process or data etc.Symmetric message can be sent arbitrarily by both Controller or Switch, is mainly used for protecting link or test link.In actual application, because the network architecture chain of command based on OpenFlow agreement is thoroughly separated with forwarding face, forwarding face only possesses simple chain of command function, so just need the disposal ability of chain of command Controller very powerful, the mistake occurred for forwarding face and the control signal that can not identify or data all need to resolve by Packet in message being delivered to Controller, and then by Controller to forwarding face equipment UGW(universal gateway) issue process and operate.The situation of hackers attack, a large amount of dissimilar downstream data flows is there is in network application, for the operation that current OpenFlow agreement specifies, although the data execution that cannot mate can be arranged abandon operation, prevent unknown data or signaling to the impact of Controller with this, but for arriving the validated user data of Switch, frequently Packet in message is sent the hydraulic performance decline that Controller also can be brought unnecessary.
Fig. 1 is the EPC ICQ flow chart based on OpenFlow agreement according to correlation technique, as shown in Figure 1, for SDNEPC(mobile core network) practical problem that occurs in network is described:
Step 1, user face passage when user is in the free time, Switch not having user descending, when downstream data flow 1 arrives, according to the processing mode of Switch, for the data of not mating stream table carry out buffer memory and on send the Packet in operation of message trigger Controller.
Step 2, UGW send Packet in message.
Step 3, according to the packets headers information of Packet in, Controller can know which user's downlink data arrives, send the downlink data notification message of GTP-C to MME.
Step 4, MME starts the paging to user.
Step 5, when the unmodified stream table of Controller, when the downstream data flow 2 of user arrives, according to the operation of UGW configuration, the stream table cache do not mated for same subscriber also sends Packet in Controller.
Step 6, is triggered on Packet in by downstream data flow 2 and send.
Step 7, if the downstream data flow continuing to have user not obtain mating arrives, so Switch according to existing operation can frequent on send Packet in message, even if the business datum of the downlink data identical Qos grade that may be same subscriber.
Step 8, when after subscriber paging success, MME can receive the SR signaling procedure that user terminal UE initiates.
Step 9, MME upgrades user face downlink tunnel by amendment bearing request message.
Step 10, Controller sends from downlink tunnel port by the instruction of Packet out message is data cached.
Step 11, Controller performs amended stream table content by stream table amendment message instruction follow-up data stream, data is sent from downlink tunnel port.
By the analysis of above-mentioned flow process, paging cause time to postpone a meeting or conference the situation bringing multiple Business Streams of impact, particularly same subscriber same levels in signaling to arrive Switch also to need Packet in send to Controller.Along with the growth of number of users, this signaling to controlller is impacted particularly evident.
The time delay caused for paging in correlation technique brings the impact in signaling can become particularly evident problem along with the growth of number of users to Controller, not yet proposes effective solution at present.
Summary of the invention
The invention provides a kind of OpenFlow signaling control method and device, the time delay caused at least to solve above-mentioned paging brings the impact in signaling can become particularly evident problem along with increasing of number of users to Controller.
According to an aspect of the present invention, provide a kind of OpenFlow signaling control method, be applied to exchanger side, comprise: switch is according to reporting grade by the arithmetic logic determination reporting message in controller predefined Message Processing stream table, wherein, report grade to comprise: high priority and low priority, Message Processing stream table also comprises: actuating logic; When being high priority when reporting grade, switch performs the first actuating logic corresponding to high priority in actuating logic, when being low priority when reporting grade, switch performs the second actuating logic corresponding to low priority in actuating logic, wherein, first actuating logic sends reporting message in real time to controller, and the second actuating logic does not send reporting message in real time to controller.
Preferably, switch according to by the arithmetic logic determination reporting message in controller predefined Message Processing stream table report grade before, comprise: switch receives the Message Processing stream table that controller issues, wherein, matching domain in Message Processing stream table comprises: preset user ID and preset knowledge type, and the execution domains in Message Processing stream table comprises: arithmetic logic and actuating logic.
Preferably, perform before the first actuating logic sends reporting message in real time to controller at switch, comprising: switch carries out matching operation to reporting message, if the match is successful, carry out the defining operation to execution domains; Switch according to the grade of service of data in the type of message of reporting message, reporting message and reporting message whether on pass through and determine to report grade to be high priority or low priority in conjunction with pre-configured strategy.
Preferably, switch carries out matching operation to reporting message, comprising: when reporting message arrives Message Processing stream table, switch is according to the IP address of data acquisition user in type of message and reporting message; Matching operation is carried out as user ID and preset user ID in the IP address of user.
Preferably, do not send reporting message in real time to controller to comprise: do not send reporting message to controller or send reporting message in real time to controller again after the scheduled time of interval.
Preferably, reporting message comprises: Packet in message.
According to a further aspect in the invention, provide a kind of OpenFlow signaling control apparatus, be positioned at switch, comprise: determination module, for according to by controller predefined Message Processing stream table arithmetic logic determination reporting message report grade, wherein, report grade to comprise: high priority and low priority, Message Processing stream table also comprises: actuating logic; Executive Module, for when reporting grade to be high priority, perform the first actuating logic corresponding to high priority in actuating logic, when being low priority when reporting grade, perform the second actuating logic corresponding to low priority in actuating logic, wherein, the first actuating logic sends reporting message in real time to controller, and the second actuating logic does not send reporting message in real time to controller.
According to another aspect of the invention, provide a kind of OpenFlow signaling control method, be applied to controller side, comprise: controller definition Message Processing stream table, wherein, the execution domains of Message Processing stream table comprises: arithmetic logic and actuating logic; Controller Message Processing stream table is issued to switch with make switch according to arithmetic logic determination reporting message report grade and according to reporting grade to perform corresponding actuating logic in actuating logic, wherein, corresponding actuating logic comprises: send reporting message in real time to controller or do not send reporting message in real time to controller, reporting grade to comprise: high priority and low priority.
Preferably, the matching domain of Message Processing stream table comprises: preset user ID and preset knowledge type.
According to also one side of the present invention, provide a kind of OpenFlow signaling control apparatus, be positioned at controller, comprise: definition module, for defining Message Processing stream table, wherein, the execution domains of Message Processing stream table comprises: arithmetic logic and actuating logic; Issue module, for Message Processing stream table is issued to switch with make switch according to arithmetic logic determination reporting message report grade and according to reporting grade to perform corresponding actuating logic in actuating logic, wherein, corresponding actuating logic comprises: send reporting message in real time to controller or do not send reporting message in real time to controller, reporting grade to comprise: high priority and low priority.
Pass through the present invention, adopt by preset arithmetic logic in the execution domains of controller in Message Processing stream table and actuating logic and be handed down to switch, grade is reported according to arithmetic logic determination reporting message again by switch, and according to reporting the height of grade to select corresponding actuating logic to determine whether to send to controller the mode of reporting message from actuating logic, solving the time delay that paging causes brings the impact in signaling can become particularly evident problem along with the growth of number of users to Controller, can by the flexible form definition of Message Processing stream table being sent the processing mode of message, and then reach the behavior that standardization Switch sends signaling, the effect of the hydraulic performance decline avoiding Controller to bring due to the signaling process repeated in a large number.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the EPC ICQ flow chart based on OpenFlow agreement according to correlation technique;
Fig. 2 is the OpenFlow signaling control method flow chart according to the embodiment of the present invention one;
Fig. 3 is the structured flowchart of the OpenFlow signaling control apparatus according to the embodiment of the present invention one;
Fig. 4 is the OpenFlow signaling control method flow chart according to the embodiment of the present invention two;
Fig. 5 is the structured flowchart of the OpenFlow signaling control apparatus according to the embodiment of the present invention two;
Fig. 6 is the Message Processing stream list structure schematic diagram of controller definition according to the preferred embodiment of the invention;
Fig. 7 is the implementation process figure of signaling control method according to the preferred embodiment of the invention;
Fig. 8 is applied in the implementing procedure figure in SDN EPC network according to the preferred embodiment of the invention;
Fig. 9 is the functions of the equipments structural representation of controller according to the preferred embodiment of the invention; And
Figure 10 is the functions of the equipments structural representation of switch according to the preferred embodiment of the invention.
Embodiment
Hereinafter also describe the present invention in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
Embodiments provide a kind of OpenFlow signaling control method and device, it relates generally to the signaling optimization field based on OpenFlow agreement, pass through the present embodiment, the Switch that can standardize sends the behavior of signaling, avoids the hydraulic performance decline that Controller brings due to the signaling process repeated in a large number.
The embodiment of the present invention one provides a kind of OpenFlow signaling control method, can be applied to exchanger side.Fig. 2 is the OpenFlow signaling control method flow chart according to the embodiment of the present invention one, and as shown in Figure 2, the method mainly comprises the following steps (step S202-step S204):
Step S202, switch is according to reporting grade by the arithmetic logic determination reporting message in controller predefined Message Processing stream table, and wherein, report grade to comprise: high priority and low priority, Message Processing stream table also comprises: actuating logic;
Step S204, when being high priority when reporting grade, switch performs the first actuating logic corresponding to high priority in actuating logic, when being low priority when reporting grade, switch performs the second actuating logic corresponding to low priority in actuating logic, wherein, the first actuating logic sends reporting message in real time to controller, and the second actuating logic does not send reporting message in real time to controller.
By each step above-mentioned, controller can preset arithmetic logic and actuating logic be handed down to switch in the execution domains in Message Processing stream table, switch reports grade again according to arithmetic logic determination reporting message, and according to reporting the height of grade to select corresponding actuating logic to determine whether to send reporting message to controller from actuating logic.By this way, can by the flexible form definition of Message Processing stream table being sent the processing mode of message.
In the present embodiment, before execution step S202, switch can receive the Message Processing stream table that controller issues, wherein, matching domain in Message Processing stream table comprises: preset user ID and preset knowledge type, and the execution domains in Message Processing stream table comprises: arithmetic logic and actuating logic.
In the step S204 of the present embodiment, perform before the first actuating logic sends reporting message in real time to controller at switch, switch first can carry out matching operation to reporting message, if the match is successful, carries out the defining operation to execution domains; Switch again according to the grade of service of data in the type of message of reporting message, reporting message and reporting message whether on pass through and determine to report grade to be high priority or low priority in conjunction with pre-configured strategy.
Wherein, switch carries out matching operation to reporting message and can realize in the following manner: when reporting message arrives Message Processing stream table, switch is according to the IP address of data acquisition user in type of message and reporting message; Matching operation is carried out as user ID and preset user ID in the IP address of user.
In the present embodiment, do not send reporting message in real time to controller can comprise: do not send reporting message to controller or send reporting message in real time to controller again after the scheduled time of interval.
In the present embodiment, reporting message can comprise: Packet in message.Certainly, in actual applications, reporting message can also comprise the message that other type needs carry out reporting.
The embodiment of the present invention one provides a kind of OpenFlow signaling control apparatus, is positioned at switch, in order to realize the OpenFlow signaling control method that embodiment one provides.Fig. 3 is the structured flowchart of the OpenFlow signaling control apparatus according to the embodiment of the present invention one, and as shown in Figure 3, this device mainly comprises: determination module 10 and Executive Module 20.Wherein:
Determination module 10, for according to by controller predefined Message Processing stream table arithmetic logic determination reporting message report grade, wherein, report grade to comprise: high priority and low priority, Message Processing stream table also comprises: actuating logic; Executive Module 20, for when reporting grade to be high priority, perform the first actuating logic corresponding to high priority in actuating logic, when being low priority when reporting grade, perform the second actuating logic corresponding to low priority in actuating logic, wherein, the first actuating logic sends reporting message in real time to controller, and the second actuating logic does not send reporting message in real time to controller.
The embodiment of the present invention two provides a kind of OpenFlow signaling control method, can be applied to controller side.Fig. 4 is the OpenFlow signaling control method flow chart according to the embodiment of the present invention two, and as shown in Figure 4, the method mainly comprises the following steps (step S402-step S404):
Step S402, controller definition Message Processing stream table, wherein, the execution domains of Message Processing stream table comprises: arithmetic logic and actuating logic;
Step S404, controller Message Processing stream table is issued to switch with make switch according to arithmetic logic determination reporting message report grade and according to reporting grade to perform corresponding actuating logic in actuating logic, wherein, corresponding actuating logic comprises: send reporting message in real time to controller or do not send reporting message in real time to controller, reporting grade to comprise: high priority and low priority.
In the present embodiment, the matching domain of Message Processing stream table can comprise: preset user ID and preset knowledge type.
The embodiment of the present invention two provides a kind of OpenFlow signaling control apparatus, is positioned at controller, in order to realize the OpenFlow signaling control method that embodiment two provides.Fig. 5 is the structured flowchart of the OpenFlow signaling control apparatus according to the embodiment of the present invention two, and as shown in Figure 5, this device mainly comprises: definition module 10 and issue module 20.Wherein:
Definition module 10, for defining Message Processing stream table, wherein, the execution domains of Message Processing stream table comprises: arithmetic logic and actuating logic; Issue module 20, for Message Processing stream table is issued to switch with make switch according to arithmetic logic determination reporting message report grade and according to reporting grade to perform corresponding actuating logic in actuating logic, wherein, corresponding actuating logic comprises: send reporting message in real time to controller or do not send reporting message in real time to controller, reporting grade to comprise: high priority and low priority.
The OpenFlow signaling control method adopting above-described embodiment one and embodiment two to provide and device, can by the flexible form definition of Message Processing stream table being sent the processing mode of message, and then reach the behavior that standardization Switch sends signaling, the effect of the hydraulic performance decline avoiding Controller to bring due to the signaling process repeated in a large number.
The OpenFlow signaling control method provided above-described embodiment below in conjunction with Fig. 6 to Figure 10 and preferred embodiment and device are further described in more detail and illustrate.
In the preferred embodiment, can pre-define Message Processing stream table by controller, wherein, the matching domain of stream table comprises: user ID, type of message, and the execution domains of stream table comprises: computing and actuating logic.And then, Message Processing stream table can be programmed in stream table pipeline serial operation by controller, alternatively, can also send to Message Processing stream table in the form of metadata by higher level's stream table about the characteristic information of stream, wherein, the characteristic information of stream comprises: Qos grade, resource preempting priority etc.
When switch receives the stream table soldier that issues of controller when performing to Message Processing stream table, the user ID in matching domain, type of message determination execution domains can be used, to know the transmission behavior of corresponding message.Particularly, switch can define arithmetic unit and actuator, and wherein, arithmetic unit is for determining the grade of service of message grade and/or data flow, and actuator is used for performing corresponding transmission behavior according to class information.In the preferred embodiment, the transmission behavior of actuator can be configured by controller, transmission behavior can be immediately on send, limiting time given, the signaling of same subscriber same levels only on send one inferior.
Fig. 6 is the Message Processing stream list structure schematic diagram of controller definition according to the preferred embodiment of the invention, and as shown in Figure 6, in Message Processing stream list structure, particular content is as follows:
According to the stream list structure that the OpenFlow agreement of ONF definition is supported, the concrete structure that the present invention defines Message Processing stream table comprises: matching domain, counter and execution domains.Wherein:
Matching domain comprises: user ID and type of message.The processing mode of specific user's particular message can be obtained by the matching process of matching domain.Wherein, user ID can be set to wildcard, then namely can be obtained the processing mode of particular message by the matching process of matching domain.
Counter is for calculating the number of coupling message.
Execution domains is for specifying the process behavior of mating message.Execution domains comprises: arithmetic logic and actuating logic, wherein, arithmetic logic mates the grade of message for determining, or according to the grade of service of business data flow metadata determination data flow, or determine whether to process the transmission of this type of message according to the operation carrying out traveling through execution domains.The message that actuating logic defines different brackets send mode, the message that message sends immediately, grade is low as high in grade can arrange report time interval delayed delivery, same subscriber same levels business data flow reporting message only send one inferior.
Particularly, controller, can according to the different arithmetic logic of gerentocratic requirement definition and actuating logic when the execution domains of setup message process stream table.Such as, controller can divide the signaling that switch send according to urgency level or significance level according to gerentocratic needs.For needing the message of instant process (such as, match-type is the message of ARP or DHCP etc.), the higher priority in arithmetic logic can be set to, definition actuating logic be eligible after do not controlled to send Controller process immediately by Switch; For the message for state synchronized such as Flow-Removed, Port-status, the lower priority in arithmetic logic can be set to, definition actuating logic be eligible after by Switch control report, the time interval delayed delivery reported can be set; For same cause (such as, the downlink data of same user does not mate) the Packet in message that causes, the lower priority in arithmetic logic can be set to, and arithmetic logic is set needs traversal execution domains to detect Packet in message whether to send, can define actuating logic is that same subscriber same levels stream table does not mate the Packet in message caused and only sends once.
This preferred embodiment receives downlink data for switch and can not mate and be described.Fig. 7 is the implementation process figure of signaling control method according to the preferred embodiment of the invention, and as shown in Figure 7, this implementation process comprises:
Data flow arrives the stream table n in switch.Determine whether to mate stream table n, if can mate, so perform data retransmission; If can not mate, so determine that the table miss flow entry(in stream table n does not mate stream entity) whether indicate to perform on Packet in and send process, if, according to the layout of controller convection current table, Packet in message is sent Message Processing stream table (Table n+1) process, otherwise, data are abandoned.The characteristic information of data flow can also be sent to Message Processing stream table (| Table n+1) as metadata by stream table n.
When Packet in message arrives Table n+1, the data acquisition IP address carried in type of message (Packet in message, openflow protocol definition protocol header label is 10) own and Packet in message is used to carry out the coupling of Tablen+1 matching domain as user ID.The operation of execution domains definition is completed after hit, arithmetic logic in execution domains determines that Packet in message level is low, and need to use metadata determination streaming class, traversal execution domains after find this grade business data flow cause Packet in not on pass through, then transfer to actuating logic to process class information and traversing result, actuating logic defines this kind of situation Packet in message to be needed to send.If find after traversal execution domains the Packet in that the business data flow of this grade causes passes through, then transfer to actuating logic to process class information and traversing result, the Packet in that actuating logic defines this kind of situation does not need to send.
By the method that this preferred embodiment provides, controller can by the definition of the flexible form of Message Processing stream table being sent the processing mode of message, can effectively control the similar control information that same cause causes on give, avoid the impact that controller is caused.
In the implementation process of this preferred embodiment, arithmetic logic and actuating logic can define according to demand, and this preferred embodiment is also not specifically limited.
Fig. 8 is applied in the implementing procedure figure in SDN EPC network according to the preferred embodiment of the invention, and as shown in Figure 8, this flow process comprises:
Step S801, downstream data flow 1 arrives Switch.
Step S802, when user is in the free time, Switch does not have this moment the user face passage that user is descending, stream table cannot mate, and needs to send Packet in message.According to the implementation process described in Fig. 7, need initiation message process stream table to determine whether to send Packet in message, detailed process as shown in Figure 7.
Message Processing stream table in step S803, Switch determines that the Packet in message that this level data stream send does not send, then Switch send Packet in message to Controller.
According to the packets headers information that Packet in send, step S804, Controller can know which user's downlink data arrives, send the downlink data notification message of GTP-C to MME.
Step S805, MME start the paging to user.
Step S806, downstream data flow 2 arrives Switch, and Switch does not now obtain descending coupling stream table, needs to send Packetin message again, now still needs initiation message process stream table to determine whether to be necessary to send Packet in message again.
Step S807, if downstream data flow 2 belongs to same subscriber with downstream data flow 1 and the grade of service of data flow is identical, the embodiment according to Fig. 7, does not now need to send Packet in message.But if the grade of service that downstream data flow 2 and downstream data flow 1 belong to same subscriber data flow 2 is different from data flow 1, the embodiment according to Fig. 7, still can send Packet in message.If downstream data flow 2 and downstream data flow 1 belong to different user, now need to start different Message Processing stream tables to judge, in the new Message Processing stream table started, if Packet in message corresponding to these level data flow did not send, can flow process according to Fig. 7, need again to send Packet in message.
Step S808, when after subscriber paging success, MME can receive the SR signaling procedure that user terminal UE initiates.
Step S809, MME upgrade user face downlink tunnel by amendment bearing request message.
Step S810, Controller send from downlink tunnel port by the instruction of Packet out message is data cached.
Step S811, Controller perform amended stream table content by stream table amendment message instruction follow-up data stream, data are sent from downlink tunnel port.
Fig. 9 is the functions of the equipments structural representation of controller according to the preferred embodiment of the invention, as shown in Figure 9, specifically comprises following functional unit:
Message Processing stream table generation unit 901, for according to switch may on the type of message that send generate corresponding Message Processing stream table, the matching domain of stream table is used for hitting execution domains, and controller sets execution domains content as required according to different messages type.Wherein, execution domains comprises: arithmetic logic and actuating logic.
Arranging unit 903, for Message Processing stream table being programmed into the stream table end needing signaling is sent, increase signaling whether on the decision process sent, help switch to optimize the process that signaling is sent.
Figure 10 is the functions of the equipments structural representation of switch according to the preferred embodiment of the invention, as shown in Figure 10, specifically comprises following functional unit:
Arithmetic unit 1001: the arithmetic logic in the Message Processing stream table of implementation controller definition, for determining to mate the grade of message or determining whether to process the transmission of this type of message according to the grade of service of business data flow metadata determination data flow or the operation of carrying out traveling through execution domains.
Actuator 1003: send mode in the different brackets message of actuating logic definition, the message that the message that such as grade is high sends immediately, grade is low can arrange report time interval delayed delivery, same subscriber same levels business data flow reporting message only send one inferior.
The OpenFlow of the flow process generation that the method that this preferred embodiment provides can be improved as shown in Figure 1 is applied in the problem of SDN EPC network.
It should be noted that, the embodiment of the present invention goes for any network using OpenFlow agreement, specifically can carry out setting and the layout of Message Processing stream table according to actual conditions.Such as, the controller Controller that the embodiment of the present invention provides can be applied to anyly to be had on calculating, the server of storage capacity or platform.Merge and can realize on any physical equipment with simple local computing and routing forwarding ability by forwarding, such as router, switch, network processing unit etc.
It should be noted that, above-mentioned modules can be realized by hardware.Such as: a kind of processor, comprise above-mentioned modules, or above-mentioned modules lays respectively in a processor.
In another embodiment, additionally provide a kind of software, this software is for performing the technical scheme described in above-described embodiment and preferred implementation.
In another embodiment, additionally provide a kind of storage medium, store above-mentioned software in this storage medium, this storage medium includes but not limited to: CD, floppy disk, hard disk, scratch pad memory etc.
From above description, can find out, present invention achieves following technique effect: be handed down to switch by preset arithmetic logic in the execution domains of controller in Message Processing stream table and actuating logic, grade is reported according to arithmetic logic determination reporting message again by switch, and according to reporting the height of grade to select corresponding actuating logic to determine whether to send reporting message to controller from actuating logic, can by the flexible form definition of Message Processing stream table being sent the processing mode of message, and then reach the behavior that standardization Switch sends signaling, the effect of the hydraulic performance decline avoiding Controller to bring due to the signaling process repeated in a large number.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, and in some cases, step shown or described by can performing with the order be different from herein, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. an OpenFlow signaling control method, is applied to exchanger side, it is characterized in that, comprising:
Switch according to reporting grade by the arithmetic logic determination reporting message in controller predefined Message Processing stream table, wherein, described in report grade to comprise: high priority and low priority, described Message Processing stream table also comprises: actuating logic;
When described report grade to be described high priority, described switch performs the first actuating logic corresponding to described high priority in described actuating logic, when described report grade to be described low priority, described switch performs the second actuating logic corresponding to described low priority in described actuating logic, wherein, described first actuating logic sends described reporting message in real time to described controller, and described second actuating logic does not send described reporting message in real time to described controller.
2. method according to claim 1, is characterized in that, switch according to by the arithmetic logic determination reporting message in controller predefined Message Processing stream table report grade before, comprising:
Described switch receives the described Message Processing stream table that described controller issues, wherein, matching domain in described Message Processing stream table comprises: preset user ID and preset knowledge type, and the execution domains in described Message Processing stream table comprises: described arithmetic logic and described actuating logic.
3. method according to claim 2, is characterized in that, before described first actuating logic of described switch execution sends described reporting message in real time to described controller, comprising:
Described switch carries out matching operation to described reporting message, if the match is successful, carries out the defining operation to described execution domains;
Described switch according to the grade of service of data in the type of message of described reporting message, described reporting message and described reporting message whether on pass through to determine in conjunction with pre-configured strategy described in report grade to be described high priority or described low priority.
4. method according to claim 3, is characterized in that, described switch carries out matching operation to described reporting message, comprising:
When described reporting message arrives described Message Processing stream table, described switch is according to the IP address of data acquisition user in described type of message and described reporting message;
Matching operation is carried out as user ID and described preset user ID in the IP address of described user.
5. method according to any one of claim 1 to 4, it is characterized in that, do not send described reporting message in real time to described controller and comprise: do not send described reporting message to described controller or send described reporting message in real time to described controller again after the scheduled time of interval.
6. method according to any one of claim 1 to 4, is characterized in that, described reporting message comprises: Packet in message.
7. an OpenFlow signaling control apparatus, is positioned at switch, it is characterized in that, comprising:
Determination module, for according to by controller predefined Message Processing stream table arithmetic logic determination reporting message report grade, wherein, described in report grade to comprise: high priority and low priority, described Message Processing stream table also comprises: actuating logic;
Executive Module, for when described report grade to be described high priority, perform the first actuating logic corresponding to described high priority in described actuating logic, when described report grade to be described low priority, perform the second actuating logic corresponding to described low priority in described actuating logic, wherein, described first actuating logic sends described reporting message in real time to described controller, and described second actuating logic does not send reporting message in real time to described controller.
8. an OpenFlow signaling control method, is applied to controller side, it is characterized in that, comprising:
Controller definition Message Processing stream table, wherein, the execution domains of described Message Processing stream table comprises: arithmetic logic and actuating logic;
Described Message Processing stream table is issued to switch to make described switch reporting grade and performing corresponding actuating logic in described actuating logic according to the described grade that reports according to described arithmetic logic determination reporting message by described controller, wherein, described corresponding actuating logic comprises: send described reporting message in real time to described controller or do not send described reporting message in real time to described controller, described in report grade to comprise: high priority and low priority.
9. method according to claim 8, is characterized in that, the matching domain of described Message Processing stream table comprises: preset user ID and preset knowledge type.
10. an OpenFlow signaling control apparatus, is positioned at controller, it is characterized in that, comprising:
Definition module, for defining Message Processing stream table, wherein, the execution domains of described Message Processing stream table comprises: arithmetic logic and actuating logic;
Issue module, for described Message Processing stream table being issued to switch to make described switch reporting grade and performing corresponding actuating logic in described actuating logic according to the described grade that reports according to described arithmetic logic determination reporting message, wherein, described corresponding actuating logic comprises: send described reporting message in real time to described controller or do not send described reporting message in real time to described controller, described in report grade to comprise: high priority and low priority.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310718117.9A CN104735000A (en) | 2013-12-23 | 2013-12-23 | OpenFlow signaling control method and device |
| PCT/CN2014/077586 WO2014180363A1 (en) | 2013-12-23 | 2014-05-15 | Openflow signaling control method and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310718117.9A CN104735000A (en) | 2013-12-23 | 2013-12-23 | OpenFlow signaling control method and device |
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| CN104735000A true CN104735000A (en) | 2015-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310718117.9A Withdrawn CN104735000A (en) | 2013-12-23 | 2013-12-23 | OpenFlow signaling control method and device |
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| Country | Link |
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| CN (1) | CN104735000A (en) |
| WO (1) | WO2014180363A1 (en) |
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| Publication number | Publication date |
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| WO2014180363A1 (en) | 2014-11-13 |
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