CN105814844B

CN105814844B - Switch port control method, apparatus and system

Info

Publication number: CN105814844B
Application number: CN201480040335.4A
Authority: CN
Inventors: 冯强; 张小波; 张丰伟
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2014-11-17
Filing date: 2014-11-17
Publication date: 2019-08-16
Anticipated expiration: 2034-11-17
Also published as: CN105814844A; WO2016077948A1

Abstract

A kind of switch port control method, apparatus and system, this method comprises: SDN switch receives the energy conservation setting message that software defined network SDN controller is sent, the energy conservation setting message includes port numbers and energy conservation instruction, and the energy conservation instruction, which is used to indicate, carries out energy saving setting (101) to the corresponding port of the port numbers；The SDN switch carries out energy saving setting to the port according to the energy conservation instruction, and the port is made to enter power save mode (102).The energy conservation setting message including energy conservation instruction that SDN controller (902) are sent is received by SDN switch (901), and energy saving setting is carried out to corresponding port according to energy conservation instruction, it realizes to the energy-efficient flexible control in SDN switch (901) port.

Description

Switch port control method, apparatus and system

Technical field

The present invention relates to the communication technologys, more particularly to one kind to be suitable for software defined network (Software Define Network, abbreviation SDN) switch port control method in technology, apparatus and system.

Background technique

SDN technology allows to be programmed a network, the level of abstraction of physical network can be supplied directly to control element, Allow to be arranged and operate network, such as open flows (OpenFlow) technology by software.The core concept of SDN technology is, will be complete The data packet repeating process controlled entirely by switch/router, is converted into the independent mistake being respectively completed by interchanger and controller Journey.

For example, in OpenFlow technology, open flow switch (OpenFlow Switch, referred to as: OFS) and open flows Controller (OpenFlow Controller, abbreviation OFC) is based on open flow agreement (OpenFlow Protocol, abbreviation OFP) It interacts.OFC is responsible for global administration, formulates the forward rule of data packet, and the forward rule of formulation is sent out by flow entry OFS is given, after OFS receives flow entry, for the data packet received, searches corresponding flow entry, and according in flow entry Forward rule processing is forwarded to data packet, if OFS can not find corresponding flow entry, which is transmitted to OFC, The forward rule of the data packet is determined by OFC, and is issued to OFS for the forward rule of decision as new flow entry, in OFS Flow entry be updated.

Core retransmission unit of the interchanger as SDN, quantity is more, and power consumption is big, very big for current network energy consumption accounting, such as The energy consumption what reduces SDN switch is that operator reduces compeling for Capital expenditure (Capital Expenditure, abbreviation CAPEX) Cut demand.

Summary of the invention

In view of this, the embodiment of the present invention provides a kind of switch port control method, apparatus and system, solved with overcoming The SDN switch problem big as core retransmission unit energy consumption accounting in the prior art.

In a first aspect, the embodiment of the present invention provides a kind of switch port control method, comprising:

SDN switch receives the energy conservation setting message that SDN controller is sent, the energy conservation setting message include port numbers with And energy conservation instruction, the energy conservation instruction, which is used to indicate, carries out energy saving setting to the corresponding port of the port numbers；

The SDN switch carries out energy saving setting to the port according to the energy conservation instruction, and the port is made to enter section It can state.

With reference to first aspect, in the first possible implementation of the first aspect, the energy conservation setting message is also wrapped Energy saving rate is included, the energy conservation rate is more than or equal to zero, and the energy conservation rate, which is used to indicate, arrives the speed adjust of the port The energy conservation rate；

Correspondingly, the SDN switch carries out energy saving setting to the port according to the energy conservation instruction, comprising:

The SDN switch sets the energy saving rate for the rate of the port according to the energy conservation instruction.

With reference to first aspect or the first possible implementation of first aspect, second in first aspect are possible In implementation, the SDN switch is received before the energy conservation setting message that SDN controller is sent, further includes:

The SDN switch determines that the port meets according to the port flow and flow threshold of the port and enters energy conservation The condition of state；

For the SDN switch to the SDN controller sending port status message, the port status message includes described The corresponding port numbers in port and power save mode, the power save mode are used to indicate the port and are prepared to enter into power save mode.

The possible implementation of second with reference to first aspect, in the third possible implementation of first aspect In, the port status message further includes expected rate, and the expected rate is used to indicate the energy conservation speed of the desired port Rate.

Any one of the third possible implementation is arrived with the first of first aspect with reference to first aspect, in first party In the 4th kind of possible implementation in face, the SDN switch is according to the energy conservation instruction to the corresponding end of the port numbers Mouth carries out after energy saving setting, further includes:

If the SDN switch indicates successfully to carry out energy saving setting to the port according to the energy conservation, the SDN is handed over Change planes and send energy conservation setting response message to the SDN controller, the energy conservation setting response message include the port numbers with And energy saving setting state, it is power save mode that the energy conservation setting state, which is used to indicate the port,.

Any one of the third possible implementation is arrived with the first of first aspect with reference to first aspect, in first party In the 5th kind of possible implementation in face, the SDN switch is according to the energy conservation instruction to the corresponding end of the port numbers Mouth carries out after energy saving setting, further includes:

If the SDN switch carries out energy saving setup failed to the port according to the energy conservation instruction, the SDN is handed over It changes planes and sends setting error message to the SDN controller, the setting error message includes that the port numbers and energy conservation are set Error message is set, the energy conservation setting error message, which is used to indicate, loses the progress energy conservation setting of the port numbers corresponding port It loses.

Any one of the third possible implementation is arrived with the first of first aspect with reference to first aspect, in first party In the 6th kind of possible implementation in face, further includes:

The SDN switch receives the energy conservation that the SDN controller is sent and cancels message, and the energy conservation cancels message and includes Instruction is cancelled in the port numbers and energy conservation, and the energy conservation cancels instruction and is used to indicate cancellation to the corresponding port of the port numbers Energy conservation setting；

The SDN switch cancels instruction cancellation according to the energy conservation and the energy conservation of the port is arranged, and makes the port Exit power save mode.

The 6th kind of possible implementation with reference to first aspect, in the 7th kind of possible implementation of first aspect In, the SDN switch cancels instruction cancellation according to the energy conservation and the energy conservation of the port is arranged, comprising:

The SDN switch sets the rate of the port to the maximum rate that the port allows.

The 6th with reference to first aspect or the 7th kind of possible implementation, in the 8th kind of possible realization of first aspect In mode, the SDN switch is cancelled according to the energy conservation after the energy conservation setting that instruction is cancelled to the port, further includes:

If the SDN switch cancels the energy conservation setting indicated successfully to cancel to the port, institute according to the energy conservation It states SDN switch and sends energy conservation cancellation response message to the SDN controller, it includes the end that response message is cancelled in the energy conservation Slogan and energy saving cancellation state, it is non-power save mode which, which is used to indicate the corresponding port of the port numbers,.

The 6th with reference to first aspect or the 7th kind of possible implementation, in the 9th kind of possible realization of first aspect In mode, the SDN switch is cancelled according to the energy conservation after the energy conservation setting that instruction is cancelled to the port, further includes:

If the SDN switch cancels energy saving setup failed of the instruction cancellation to the port, institute according to the energy conservation State SDN switch to the SDN controller send cancel error message, the cancellation error message include the port numbers and Error message is cancelled in energy conservation, and the energy conservation cancellation error message, which is used to indicate, sets the cancellation energy conservation of the port numbers corresponding port It sets unsuccessfully.

Second aspect, the embodiment of the present invention provide a kind of switch port control method, comprising:

SDN controller, which is determined, carries out energy saving setting to the port of SDN switch；

The SDN controller sends energy conservation setting message to the SDN switch, and the energy conservation setting message includes described The corresponding port numbers in port and energy conservation instruction, the energy conservation instruction, which is used to indicate, carries out energy saving setting to the port.

In conjunction with second aspect, in the first possible implementation of the second aspect, the SDN controller is determined to institute The port for stating SDN switch carries out energy saving setting, comprising:

The SDN controller is determined according to itself strategy carries out energy saving setting to the port of the SDN switch.

In conjunction with second aspect, in a second possible implementation of the second aspect, determining pair of the SDN controller The port of SDN switch carries out before energy saving setting, further includes:

The SDN controller receives the port status message that the SDN switch is sent, and the port status message includes Port numbers and power save mode, the power save mode are used to indicate the corresponding port of the port numbers and are prepared to enter into power save mode；

The SDN controller, which is determined, carries out energy saving setting to the port of the SDN switch, comprising:

The power save mode that the SDN controller includes according to the port status message is determined to the port status message Including the corresponding port of port numbers carry out energy saving setting.

In conjunction with any one of second aspect and the first to second possible implementation of second aspect, in second party In the third possible implementation in face, the energy conservation setting message further includes energy saving rate, and the energy conservation rate is greater than etc. In zero, the energy conservation rate is used to indicate the speed adjust of the port to energy saving rate.

In conjunction with the third possible implementation of second aspect, in the 4th kind of possible implementation of second aspect In, the port status message further includes expected rate, and the SDN controller determines the energy conservation speed according to the expected rate Rate.

In conjunction with any one of second aspect and first to the 4th kind of possible implementation of second aspect, in second party In the 5th kind of possible implementation in face, the SDN controller to the SDN switch send it is described energy conservation setting message it Afterwards, further includes:

The SDN controller receives the energy conservation setting response message that the SDN switch is sent, the energy conservation setting response Message includes port numbers and energy saving setting state, and the energy conservation setting state is used to indicate the corresponding port of the port numbers and is Power save mode.

In conjunction with any one of second aspect and first to the 4th kind of possible implementation of second aspect, in second party In the 6th kind of possible implementation in face, the SDN controller to the SDN switch send it is described energy conservation setting message it Afterwards, further includes:

The SDN controller receives the setting error message that the SDN switch is sent, and the setting error message includes The port numbers and energy conservation setting error message, the energy conservation setting error message are used to indicate corresponding to the port numbers Port carries out energy saving setup failed.

In conjunction with any one of second aspect and first to the 5th kind of possible implementation of second aspect, in second party In the 7th kind of possible implementation in face, further includes:

The SDN controller, which determines to cancel, is arranged the energy conservation of the port of the SDN switch；

The SDN controller sends energy conservation to the SDN switch and cancels message, and it includes described that message is cancelled in the energy conservation Instruction is cancelled in the corresponding port numbers in port and energy conservation, and it is corresponding to the port numbers that the energy conservation cancellation instruction is used to indicate cancellation Port energy conservation setting.

In conjunction with the 7th kind of possible implementation of second aspect, in the 8th kind of possible implementation of second aspect In, the SDN controller is sent to the SDN switch after the energy conservation cancellation message, further includes:

The SDN controller receives the energy conservation that the SDN switch is sent and cancels response message, and response is cancelled in the energy conservation Message includes the port numbers and energy saving cancellation state, and the energy conservation cancellation state is used to indicate the corresponding end of the port numbers Mouth is non-power save mode.

In conjunction with the 7th kind of possible implementation of second aspect, in the 9th kind of possible implementation of second aspect In, the SDN controller is sent to the SDN switch after the energy conservation cancellation message, further includes:

The SDN controller receives the cancellation error message that the SDN switch is sent, and the cancellation error message includes Error message is cancelled in the port numbers and energy conservation, and the energy conservation cancellation error message is used to indicate corresponding to the port numbers Cancel energy saving setup failed in port.

The third aspect, the embodiment of the present invention provide a kind of SDN switch, comprising:

Receiving module, for receiving the energy conservation setting message of SDN controller transmission, the energy conservation setting message includes port Number and energy conservation instruction, the energy conservation instruction, which is used to indicate, carries out energy saving setting to the corresponding port of the port numbers；

Energy-saving module makes the port enter section for carrying out energy saving setting to the port according to the energy conservation instruction It can state.

In conjunction with the third aspect, in the first possible implementation of the third aspect, the energy conservation setting message is also wrapped Energy saving rate is included, the energy conservation rate is more than or equal to zero, and the energy conservation rate is used to indicate the corresponding port of the port numbers Speed adjust to energy saving rate；

Correspondingly, the energy-saving module, specifically for being indicated according to the energy conservation by the corresponding port of the port numbers Present rate is set as the energy saving rate.

In conjunction with the possible implementation of the first of the third aspect or the third aspect, second in the third aspect is possible In implementation, further includes:

Determining module, for determining whether the port meets entrance according to the port flow and flow threshold of the port The condition of power save mode；

Sending module, if determining that the port meets the condition into power save mode for the determining module, to institute SDN controller sending port status message is stated, the port status message includes the corresponding port numbers in the port and energy conservation State, the power save mode are used to indicate the port and are prepared to enter into power save mode.

In conjunction with second of possible implementation of the third aspect, in the third possible implementation of the third aspect In, the port status message further includes expected rate, and the expected rate is used to indicate the energy conservation speed of the desired port Rate.

First in conjunction with the third aspect and the third aspect arrives any one of the third possible implementation, in third party In the 4th kind of possible implementation in face, the sending module, in the energy-saving module according to the energy conservation instruction to described After the corresponding port of port numbers carries out energy saving setting, it is also used to:

If the energy-saving module indicates successfully to carry out energy saving setting to the port according to the energy conservation, to the SDN Controller sends energy conservation setting response message, and the energy conservation setting response message includes the port numbers and energy conservation setting shape State, it is power save mode that the energy conservation setting state, which is used to indicate the corresponding port of the port numbers,.

First in conjunction with the third aspect and the third aspect arrives any one of the third possible implementation, in third party In the 5th kind of possible implementation in face, the sending module, in the energy-saving module according to the energy conservation instruction to described After the corresponding port of port numbers carries out energy saving setting, it is also used to:

If the energy-saving module carries out energy saving setup failed to the port according to the energy conservation instruction, to the SDN Controller sends setting error message, and the setting error message includes the port numbers and energy conservation setting error message, institute Energy conservation setting error message is stated to be used to indicate to the energy saving setup failed of the port numbers corresponding port progress.

In conjunction with any one of the third aspect and first to the 4th kind of possible implementation of the third aspect, in third party In the 6th kind of possible implementation in face, the receiving module is also used to:

The receiving module, is also used to:

It receives the energy conservation that the SDN controller is sent and cancels message, it includes port numbers and section that message is cancelled in the energy conservation Instruction can be cancelled, the energy conservation cancellation instruction, which is used to indicate to cancel, is arranged the energy conservation of the corresponding port of the port numbers；

The energy-saving module is also used to cancel according to the energy conservation indicating that the energy conservation of the port is arranged in cancellation, makes institute It states port and exits power save mode.

In conjunction with the 6th kind of possible implementation of the third aspect, in the 7th kind of possible implementation of the third aspect In, the energy-saving module is specifically used for:

The maximum rate that the port allows is set by the rate of the port.

In conjunction with the 6th or the 7th kind of possible implementation of the third aspect, in the 8th kind of possible realization of the third aspect In mode, the sending module is cancelled instruction cancellation according to the energy conservation in the energy-saving module and is set to the energy conservation of the port After setting, it is also used to:

If the energy-saving module cancels the energy conservation setting indicated successfully to cancel to the port according to the energy conservation, to institute It states SDN controller and sends energy conservation cancellation response message, it includes that the port numbers and energy conservation take that response message is cancelled in the energy conservation Disappear state, and it is non-power save mode which, which is used to indicate the corresponding port of the port numbers,.

In conjunction with the 6th or the 7th kind of possible implementation of the third aspect, in the 9th kind of possible realization of the third aspect In mode, the sending module is cancelled instruction cancellation according to the energy conservation in the energy-saving module and is set to the energy conservation of the port After setting, it is also used to:

If the energy-saving module cancels energy saving setup failed of the instruction cancellation to the port, Xiang Suoshu according to energy conservation SDN controller, which is sent, cancels error message, and the cancellation error message includes that error message is cancelled in the port numbers and energy conservation, The energy conservation is cancelled error message and is used to indicate to the energy saving setup failed of the port numbers corresponding port cancellation.

Fourth aspect, the embodiment of the present invention provide a kind of SDN controller, comprising:

Determining module, for determining that the port to SDN switch carries out energy saving setting；

Sending module, for sending energy conservation setting message to the SDN switch, the energy conservation setting message includes described The corresponding port numbers in port and energy conservation instruction, the energy conservation instruction, which is used to indicate, carries out energy saving setting to the port.

In conjunction with fourth aspect, in the first possible implementation of the fourth aspect, the determining module is specific to use In:

It is determined according to itself strategy and energy saving setting is carried out to the port of the SDN switch.

In conjunction with fourth aspect, in the second possible implementation of the fourth aspect, further includes:

Receiving module, the port status message sent for receiving the SDN switch, the port status message include Port numbers and power save mode, the power save mode are used to indicate the corresponding port of the port numbers and are prepared to enter into power save mode；

The determining module, is specifically used for: the power save mode for including according to the port status message is determined to the end The corresponding port of port numbers that mouth status message includes carries out energy saving setting.

In conjunction with any one of fourth aspect and the first to second possible implementation of fourth aspect, in four directions In the third possible implementation in face, the energy conservation setting message further includes energy saving rate, and the energy conservation rate is greater than etc. In zero, the energy conservation rate is used to indicate the speed adjust of the port to energy saving rate.

In conjunction with the third possible implementation of fourth aspect, in the 4th kind of possible implementation of fourth aspect In, the port status message further includes expected rate, and the determining module is also used to according to expected rate determination Energy saving rate.

In conjunction with any one of fourth aspect and first to the 4th kind of possible implementation of fourth aspect, in four directions In the 5th kind of possible implementation in face, the receiving module, in the sending module to described in SDN switch transmission After energy conservation setting message, it is also used to:

The energy conservation setting response message that the SDN switch is sent is received, the energy conservation setting response message includes port Number and energy saving setting state, it is power save mode that the energy conservation setting state, which is used to indicate the corresponding port of the port numbers,.

In conjunction with any one of fourth aspect and first to the 4th kind of possible implementation of fourth aspect, in four directions In the 6th kind of possible implementation in face, the receiving module, in the sending module to described in SDN switch transmission After energy conservation setting message, it is also used to:

Receive the setting error message that the SDN switch is sent, the setting error message include the port numbers with And energy conservation setting error message, the energy conservation setting error message, which is used to indicate, carries out energy conservation to the corresponding port of the port numbers Setup failed.

In conjunction with any one of fourth aspect and first to the 5th kind of possible implementation of fourth aspect, in four directions In the 7th kind of possible implementation in face, the determining module is also used to:

It determines to cancel and the energy conservation of the port of the SDN switch is arranged；

The sending module is also used to send energy conservation to the SDN switch and cancels message, and message package is cancelled in the energy conservation It includes the corresponding port numbers in the port and instruction is cancelled in energy conservation, the energy conservation cancels instruction and is used to indicate cancellation to the port The energy conservation setting of number corresponding port.

In conjunction with the 7th kind of possible implementation of fourth aspect, in the 8th kind of possible implementation of fourth aspect In, the receiving module is also used to after the sending module sends the energy conservation cancellation message to the SDN switch:

It receives the energy conservation that the SDN switch is sent and cancels response message, it includes described that response message is cancelled in the energy conservation Port numbers and energy saving cancellation state, it is non-energy saving shape that the energy conservation cancellation state, which is used to indicate the corresponding port of the port numbers, State.

In conjunction with the 7th kind of possible implementation of fourth aspect, in the 9th kind of possible implementation of fourth aspect In, the receiving module is also used to after the sending module sends the energy conservation cancellation message to the SDN switch:

Receive the cancellation error message that the SDN switch is sent, the cancellation error message include the port numbers with And error message is cancelled in energy conservation, the energy conservation is cancelled error message and is used to indicate to the cancellation energy conservation of the port numbers corresponding port Setup failed.

5th aspect, the embodiment of the present invention provide a kind of SDN switch, comprising:

The memory and processor connected by bus, wherein the memory is for storing program code, the processing Device executes first to the 9th kind of possible implementation such as first aspect and first aspect for calling said program code Any one of described in switch port control method.

6th aspect, the embodiment of the present invention provide a kind of SDN controller, comprising:

The memory and processor and communication interface connected by bus, wherein the memory is for storing program generation Code, the processor are used to call the program code of memory storage, execute the such as second aspect and second aspect Switch port control method described in any one of one to the 9th kind of possible implementation.

7th aspect, the embodiment of the present invention provides a kind of switch port control system, comprising: as described in terms of the 5th SDN switch and the SDN controller as described in terms of the 6th.

Through the above scheme, embodiment provided by the invention, by SDN switch receive SDN controller send include The energy conservation setting message of energy conservation instruction, and energy saving setting is carried out to corresponding port according to energy conservation instruction, SDN is handed over to realize It changes planes the energy-efficient flexible control in port.

Detailed description of the invention

To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment Attached drawing is briefly introduced, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this For the those of ordinary skill in field, without any creative labor, it can also be obtained according to these attached drawings His attached drawing.

Fig. 1 is the flow chart of switch port control method embodiment one provided by the invention；

Fig. 2 is the flow chart of switch port control method embodiment two provided by the invention；

Fig. 3 is the signaling interaction diagram of switch port control method embodiment three provided by the invention；

Fig. 4 is the signaling interaction diagram of switch port control method example IV provided by the invention；

Fig. 5 is the structural schematic diagram of SDN switch embodiment one provided by the invention；

Fig. 6 is the structural schematic diagram of SDN controller embodiment one provided by the invention；

Fig. 7 is the structural schematic diagram of SDN switch embodiment two provided by the invention；

Fig. 8 is the structural schematic diagram of SDN controller embodiment two provided by the invention；

Fig. 9 is the structural schematic diagram of switch port control system embodiment provided by the invention.

Specific embodiment

To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention make into It is described in detail to one step, it is clear that the described embodiments are only some of the embodiments of the present invention, rather than whole implementation Example.Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts All other embodiment, shall fall within the protection scope of the present invention.

In SDN, can using Openflow agreement as the interacting message format between SDN switch and SDN controller, Other agreements can certainly be used, for example, Simple Network Management Protocol (Simple Network Management Protocol, abbreviation SNMP), address (ADDR separated network agreement (Locator Identity Separation Protocol, referred to as LISP), scalable message processing Presence Protocol (Extensible Messaging and Presence Protocol, abbreviation XMPP), path-calculating element interaction protocol (Path Computation Element Communication Protocol, letter Claim PCEP) etc..Openflow agreement is the south orientation control mode that SDN compares mainstream, for convenience of describing and understanding, embodiment hereof In be all made of Openflow agreement and be illustrated, the protection scope of this patent is not impacted.

Fig. 1 is the flow chart of switch port control method embodiment one provided by the invention, and this method embodiment is held Row main body be SDN switch, such as Openflow agreement in OFS, as shown in Figure 1, this method embodiment the following steps are included:

Step 101, SDN switch receive the energy conservation setting message that SDN controller is sent, and it includes end which, which is arranged message, Slogan and energy conservation instruction, energy conservation instruction, which is used to indicate, carries out energy saving setting to the corresponding port of the port numbers；

Wherein, SDN switch can be OFS, and SDN controller can be OFC, by taking OFC as an example, specifically, OFC can root Determine whether that OFS sends energy conservation setting message using integrated scheduling algorithm according to global situation, however, it is determined that carry out to the port of OFS Energy conservation setting, then OFC sends the energy conservation setting message comprising port numbers and energy conservation instruction to OFS.

Step 102, SDN switch indicate to make the port enter energy saving shape the energy saving setting of port progress according to the energy conservation State.

Further, above-mentioned energy conservation setting message can also include energy saving rate, which is more than or equal to zero, the section Energy rate is used to indicate the speed adjust of port to energy saving rate；

Correspondingly, step 102, comprising:

SDN switch sets energy saving rate for the rate of port according to energy conservation instruction.Wherein, it is equal to zero in energy saving rate When, SDN switch can close corresponding port.

By taking SDN switch is OFS as an example, normally, the rate of the port OFS can be port permission under non-power save mode Maximum rate, as port allow maximum rate can for 100 megabits per second (Million bits per second, letter Claim Mbps) perhaps 1 giga bits per second (Giga bit per second abbreviation Gbps) or 10Gbps, then OFC is sent out to OFS The energy saving rate (speed) for including in the port status instruction message sent can be appointing more than or equal to zero and less than maximum rate Meaning value, as maximum rate be 1Gbps when, energy saving rate can for more than or equal to 0 and be less than 1Gbps arbitrary value, such as when When energy saving rate is 10Mbps, then OFS carries out rate degradation setting to port, and the rate of port is reduced to energy saving rate i.e. 10Mbps, when energy saving rate is 0, then OFS can direct close port.

Preferably, before step 101, this method embodiment can also include:

SDN switch determines whether the port meets into power save mode according to the port flow and flow threshold of port Condition；

If it is determined that the port meets the condition for entering power save mode, then SDN switch is to SDN controller sending port state Message, port status message include the corresponding port numbers in port and power save mode, which is used to indicate port standard It is standby to enter power save mode, so that the SDN controller for receiving the port status message is determined according to the power save mode to the port Carry out energy saving setting.

Above-mentioned SDN switch can be monitored port flow, and can be pre-configured with flow threshold, wherein can basis Flow threshold is arranged in the ratio of the maximum stream flow that port flow in specified time and port specified time allow, can also root According to the ratio of the Mean Speed of specified time port flow and the maximum rate of port permission, flow threshold is set.It certainly can also Think using other modes and flow threshold is set to judge whether port is currently more idle, and meets and enter power save mode Condition is not construed as limiting this present invention.

For example, if monitoring, the port flow of current 1 hour inner port is 5M, and the port allows most in 1 hour Large port flow is that 1000M, the then port flow of present port and maximum stream flow ratio are 0.5%, and flow threshold is 2%, Then show that present port flow is less than flow threshold, thus can determine that the port is currently more idle, meets and enter power save mode Condition.

It says for another example, if detecting, the Mean Speed of 3 hours inner ports is 1Mbps, and the maximum rate that port allows is 100Mbps, Mean Speed and maximum rate ratio are 1%, and flow threshold is 2%, then show that present port flow is less than stream Threshold value is measured, thus can determine that the port is currently more idle, meets the condition for entering power save mode.

If SDN switch determines that port meets the condition for entering power save mode, SDN switch is sent to SDN controller Port status message including port numbers and power save mode.

Above-mentioned port status message preferably can also include expected rate, which is used to indicate desired port Energy saving rate so that energy saving rate can be determined according to expected rate by receiving the SDN controller of port status message.

Optionally, after step 102, this method embodiment, further includes:

If above-mentioned SDN switch indicates successfully to carry out energy saving setting to port according to energy conservation, SDN switch is controlled to SDN Device transmission energy conservation setting response message processed, energy conservation setting response message include above-mentioned port numbers and energy saving setting state, are somebody's turn to do It is power save mode that energy saving setting state, which is used to indicate port,.

Further, if SDN switch carries out energy saving setup failed to port according to energy conservation instruction, SDN switch to SDN controller sends setting error message, which includes port numbers and energy conservation setting error message, the energy conservation Setting error message is used to indicate the corresponding port of port number and carries out energy saving setup failed.

Further, this method embodiment can also include:

SDN switch receive SDN controller send energy conservation cancel message, change energy conservation cancel message include port numbers and Instruction is cancelled in energy conservation, which cancels instruction and be used to indicate the energy conservation setting for cancelling the corresponding port of port number；

SDN switch cancels instruction cancellation according to energy conservation and the energy conservation of port is arranged, and port is made to exit power save mode.

Wherein, SDN switch, which according to energy conservation is cancelled instruction and cancelled, is arranged the energy conservation of port, comprising: SDN switch is by end The rate of mouth is set as the maximum rate of port permission.

It should be noted that and the port is in off state if the rate of the port is 0, then SDN switch can also be The rate of port is set to before the maximum rate of port permission, opens the port.

Herein, message is cancelled in the energy conservation that SDN switch receives, and can be SDN controller according to global situation using whole The judgement of body dispatching algorithm, which determines to cancel, carries out what energy conservation setting issued to the port of OFS, so that SDN switch cancels speed to port Rate degrades or opens port, so that port be made to exit power save mode.

Optionally, after above-mentioned SDN switch cancels instruction cancellation to the energy conservation setting of port according to energy conservation, further includes:

The energy conservation of port is arranged if SDN switch indicate successfully to cancel according to energy conservation cancellation, SDN switch is to SDN Controller sends energy conservation and cancels response message, and it includes port numbers and energy saving cancellation state, the section which, which cancels response message, It is non-power save mode that state, which can be cancelled, to be used to indicate the corresponding port of port numbers.

Further, after SDN switch cancels instruction cancellation to the energy conservation setting of port according to energy conservation, further includes:

Cancel if SDN switch cancels instruction according to energy conservation to the energy saving setup failed of port, SDN switch is to SDN Controller, which is sent, cancels error message, which includes that error message is cancelled in port numbers and energy conservation, which takes The error message that disappears is used to indicate the corresponding port of port number and cancels energy saving setup failed.

Specifically, being arranged successfully if SDN switch carries out energy conservation to port, port enters power save mode, optionally, SDN switch can send the energy conservation setting response message comprising port numbers and energy saving setting state to SDN controller；If SDN switch successfully cancels energy conservation setting to port, and port is made to exit power save mode, and the current state of port is non-energy conservation at this time State, then optionally, SDN switch can send the energy conservation comprising port numbers and energy saving cancellation state to SDN controller and take Disappear response message.If SDN switch carries out energy saving setup failed or SDN switch according to energy conservation to port according to energy conservation instruction Cancel instruction and energy saving setup failed is cancelled to port, then it includes port numbers and section that SDN switch can be sent to SDN controller The setting error message of error message can be set or cancel the cancellation error message of error message including port numbers and energy conservation, Will carry out energy saving setup failed to port or be reported to SDN controller to the reason of port cancellation energy saving setup failed.

It is OFS with SDN switch, for SDN controller is OFC, specifically, what OFS received OFC transmission includes energy conservation It indicates or energy conservation cancels the port status indicated and indicates information, which indicates that information can also include energy saving rate, If port status indicates that information includes energy conservation instruction, port speed is reduced to energy saving rate according to energy conservation instruction, works as section by OFS Can rate when being zero then can direct close port so that port enters power save mode, if successfully port is made to enter power save mode, Then OFS can return to the port status message comprising energy saving setting state to OFC, and otherwise OFS can be returned to OFC comprising energy conservation The error message of error message is set；If port status indicates that information includes that instruction is cancelled in energy conservation, at this point, OFS can not have to close Heart energy conservation rate, OFS cancels instruction according to energy conservation and sets the permitted maximum rate in port for port speed, if the port It is currently in off state, then opens port, then the permitted maximum rate in port is set by port speed, so that port is moved back Power save mode out, if port is successfully made to exit power save mode, OFS can return to the port comprising energy saving cancellation state to OFC Status message, otherwise OFS can return to the error message for cancelling error message comprising energy conservation to OFC.Preferably, OFS can be with Flow threshold is set, traffic monitoring is carried out to port, if OFS, which determines that port meets according to port flow and flow threshold, enters section The condition of energy state then can send the port status message including the first power save mode to OFC, so that OFC can timely root Determine whether to carry out port energy saving setting according to power save mode, so as to so that port enters power save mode, raising energy conservation as early as possible Efficiency.

Illustrate the specific implementation of each message with Openflow agreement below: above-mentioned energy conservation setting message and energy conservation Port status instruction message can be used in specific implementation by cancelling message, and difference is to include different energy conservation instructions； Above-mentioned port status message, energy conservation setting response message, and energy conservation are cancelled response message and can be used in specific implementation Port status message, difference are to include different power save modes；Above-mentioned setting error message and cancellation error message are having Error message can be used when body is realized, difference is to include different energy saving mistakes.

In the prior art, the port status message in OF agreement (OF protocol, abbreviation OFP) mainly includes port shape State structural body (ofp_port_status) mainly includes reason field in the ofp_port_status structural body, and Port describes (desc) field, and wherein port organization body (ofp_port) belonging to desc field includes at least port numbers (port_ No) field, port status (state) field, port present rate (curr_speed) field, and maximum port speed (max_speed) field, specifically, ofp_port_status structural body can be described as follows, wherein ellipsis (...) is indicated It is also possible that other relevant informations in practical applications, the ellipsis in subsequent structural body indicates identical meaning, no longer superfluous It states:

Wherein, ofp_port structural body belonging to above-mentioned desc field can be described as follows:

When specific implementation, the port status message in this method embodiment can be in the port status message in above-mentioned OFP It is optimized on the basis of ofp_port_status, can be increased newly in reason field and enumerate save_energy, to show this Port status message is port status message relevant to port energy conservation, and can be in the ofp_port structural body described in desc In port number field fill in the corresponding port numbers in port for carrying out energy saving setting, increase newly in state field for indicating different Power save mode is enumerated, and such as the save_mode_ready that enumerates of power save mode, energy saving setting state enumerates save_mode_ Ok, and energy saving cancellation state enumerate save_mode_cancel, for example, OFS to OFC sending port status message, Then OFS can send reason field to OFC and fill save_energy, port number field filled end slogan, and in state The port status message of field filling save_mode_ready, it is preferable that expectation speed can also be filled in curr_speed field Rate, such as desired rate pad 0, then it represents that expectation close port；OFS sends energy conservation setting response message to OFC, then OFS can be with Reason field is sent to OFC and fills save_energy, port number field filled end slogan, and is filled in state field The port status message of save_mode_ok；OFS sends energy conservation to OFC and cancels response message, then OFS can be sent to OFC Reason field fills save_energy, port number field filled end slogan, and fills save_mode_ in state field The port status message of cancel.

In existing OFP agreement, be not present port status instruction message, for OFC send port status instruction message, The embodiment of the present invention can be by increasing port instruction structure body (ofp_port_ind) newly, and wraps in port status instruction message It include the description with ofp_port_ind structure in the port status instruction structure body (ofp_port_status_ind) included (desc) field wherein includes at least the port numbers (port_no) that can be used for filled end slogan in ofp_port_ind structural body Field, can be used for filling energy conservation instruction or order (command) field of instruction is cancelled in energy conservation, and can be used for filling energy saving speed Rate (speed) field of rate, specifically, the structural body that ofp_port_status_ind can be as follows:

Wherein, ofp_port_ind belonging to above-mentioned ofp_port_status_ind desc, can be as follows Structural body:

When specific sending port state indication message, such as enumerating for energy conservation instruction, " not can be indicated with " Allowed " Allowed " indicates that enumerating for instruction is cancelled in energy conservation, when the port status instruction message to be sent is energy conservation setting message, then OFS The port number field filled end slogan that can include in ofp_port_ind, and filled in instruction (command) field " allowed ", and energy saving rate can be filled at rate (speed)；When the port status instruction message to be sent is energy conservation Cancel message, then the port number field filled end slogan that OFS can include in ofp_port_ind, and is instructing (command) field filling " not allowed ", speed field can be filled or is not filled at this time, and OFS is being received Without care speed field when message is cancelled in energy conservation.

Error message as defined in existing OFP (ofp_error_msg) structural body is as follows, includes at least type (type) field, error code (code) field and data (data) field.

The setting error message and cancellation error message of the embodiment of the present invention, can be using mistake specified in above-mentioned OFP Accidentally message structure body, and increased newly on this basis for indicating that the type of error of energy conservation failure is enumerated, such as use ofp_save_ Energy_failed indicates that the type of error is energy saving mistake, and increases newly for indicating enumerating for different energy conservation mistakes, example Such as, the degrade_error that enumerates for indicating energy conservation setting error message can be increased, enumerating for error message is cancelled in expression energy conservation degrade_cancel_error.It, can be in setting mistake when specific transmission setting error message or cancellation error message Message or the type field cancelled in error message fill ofp_save_energy_failed, and fill phase in code field The wrong degrade_error or degrade_cancel_error answered, and the port numbers of energy saving setup failed can then fill out It fills in data field.

Wherein, the above-mentioned port numbers that energy saving setup failed is filled in data field, if can be lost using 0 energy conservation setting of port Lose, data the 1st (bit) sets 1, then the 2nd bit of data sets 1 to the energy saving setup failed in port 1, and so on mode realize.

It should be noted that above-mentioned enumerated field is only some currently preferred embodiments of the present invention, it can also be different using other In conventional special field for port status information exchange to carry out rate degradation to request close port or to port, with Realize the Energy Saving Control to port, with no restriction to this present invention.

The present embodiment receives the energy conservation including port numbers and energy conservation instruction that SDN controller is sent by SDN switch Message is set, and carrying out energy conservation setting to corresponding port according to energy conservation instruction makes corresponding ports enter power save mode, and connects The energy conservation cancellation message for cancelling instruction including port numbers and energy conservation that SDN controller is sent is received, instruction is cancelled according to energy conservation and is taken Disappear corresponding ports energy conservation setting so that port is exited power save mode, so as to make the port of SDN switch in network idle Into power save mode, the power consumption of SDN switch port is reduced, SDN switch port is made to exit power save mode in network busy The normal operation for guaranteeing forwarding work, realizes flexible control energy-efficient to SDN switch port.

Fig. 2 is the flow chart of switch port control method embodiment two provided by the invention, and this method embodiment is held Row main body is the OFC in SDN controller, such as Openflow technology, corresponding with embodiment of the method shown in FIG. 1, such as Fig. 2 institute Show, this method embodiment the following steps are included:

Step 201, SDN controller, which are determined, carries out energy saving setting to the port of SDN switch；

Step 202, SDN controller send energy conservation setting message to SDN switch, and energy conservation setting message includes that port is corresponding Port numbers and energy conservation instruction, energy conservation instruction, which is used to indicate, carries out energy saving setting to port.

Wherein, step 201, comprising:

SDN controller is determined according to itself strategy carries out energy saving setting to the port of SDN switch.Specifically, SDN is controlled Device, which can be determined according to global situation using integrated scheduling algorithm, carries out energy saving setting to the port of OFS.

Alternatively, before step 201, this method embodiment can also include:

SDN controller receives the port status message that SDN switch is sent, and port status message includes port numbers and section Energy state, power save mode are used to indicate the corresponding port of the port numbers and are prepared to enter into power save mode；

Correspondingly, step 201, comprising:

The port numbers that the power save mode determination that SDN controller includes according to port status message includes to port status message Corresponding port carries out energy saving setting.

Further, energy conservation setting message can also include energy saving rate, and energy saving rate is more than or equal to zero, and energy saving rate is used In instruction by the speed adjust of port to energy conservation rate.Wherein, above-mentioned port status message can also include expected rate, accordingly , SDN controller can determine energy saving rate according to the expected rate.

Optionally, after step 202, further includes:

SDN controller receives the energy conservation setting response message that SDN switch is sent, and energy conservation setting response message includes port Number and energy saving setting state, it is power save mode that energy saving setting state, which is used to indicate the corresponding port of port numbers,.

Further, after step 202, further includes:

SDN controller receives the setting error message that SDN switch is sent, and setting error message includes port numbers and section Error message can be set, and energy conservation setting error message is used to indicate the corresponding port of port number and carries out energy saving setup failed.

Further, this method embodiment, further includes:

SDN controller, which determines to cancel, is arranged the energy conservation of the port of SDN switch；

SDN controller sends energy conservation to SDN switch and cancels message, and it includes the corresponding port numbers in port that message is cancelled in energy conservation And instruction is cancelled in energy conservation, energy conservation cancels instruction and is used to indicate the energy conservation setting for cancelling the corresponding port of port number.

Wherein, optionally, after above-mentioned SDN controller sends the energy conservation cancellation message to SDN switch, further includes:

SDN controller receives the energy conservation that SDN switch is sent and cancels response message, and it includes port that response message is cancelled in energy conservation Number and energy saving cancellation state, it is non-power save mode that energy saving cancellation state, which is used to indicate the corresponding port of port numbers,.

Further, after above-mentioned SDN controller sends the energy conservation cancellation message to SDN switch, further includes:

SDN controller receives the cancellation error message that SDN switch is sent, and cancelling error message includes port numbers and section Error message can be cancelled, energy conservation cancels error message and is used to indicate the corresponding energy saving setup failed of port cancellation of port number.

When specific implementation, message, energy conservation setting response, section are cancelled in above-mentioned port status message, energy conservation setting message, energy conservation Response message can be cancelled, error message is set and cancel error message, can refer to relevant portion in embodiment of the method shown in Fig. 1 Point, specifically repeat no more.

It should be noted that sending to SDN switch after energy conservation cancels message in SDN controller, SDN controller can also be with Energy conservation setting response message is not sent or response message is cancelled in energy conservation, and corresponding SDN controller can not receive energy conservation yet and set It sets response message or response message is cancelled in energy conservation, if at this point, SDN controller can be also not received by according to SDN controller Setting error message that SDN switch is sent to SDN controller or cancel error message come confirm SDN switch to port at Function has carried out energy saving setting or cancellation energy conservation setting.

This method embodiment, being sent by SDN controller to SDN switch includes port numbers and the energy conservation that energy conservation indicates Message is set, so that port is entered power save mode so that SDN switch carries out energy conservation setting to corresponding port according to energy conservation instruction, And to SDN switch send include port numbers and energy conservation cancel instruction energy conservation cancel message so that SDN controller according to Instruction is cancelled in energy conservation makes port exit power save mode the cancellation energy conservation setting of corresponding port, so as to make in network idle The port of SDN switch enters power save mode, reduces the power consumption of SDN switch port, SDN switch end is made in network busy Mouth exits the normal operation that power save mode guarantees forwarding work, realizes flexible control energy-efficient to SDN switch port.

Below by taking OFS and OFC in Openflow technology as an example, in switch port control method provided by the invention Signalling interactive process be specifically described.

Fig. 3 is the signaling interaction diagram of switch port control method embodiment three provided by the invention, as shown in figure 3, should Embodiment of the method the following steps are included:

Step 301, OFS are requested to OFC to port status to OFC sending port status message by port status message The corresponding port of the port numbers that message includes carries out energy saving setting；

Step 302, OFC, which are determined, carries out energy saving setting to port, and the port numbers that port status message includes are filled into The port number field of energy conservation setting message；

Step 303, OFC send energy conservation setting message to OFS, and the energy conservation instruction instruction pair that message includes is arranged by energy conservation The corresponding port of port numbers that energy conservation setting message includes carries out energy saving setting；

Step 304, OFS carry out energy saving setting to port；

If step 305a, port progress energy conservation is arranged successfully in OFS, OFS sends energy conservation setting response message to OFC, It is no to then follow the steps 305b；

Step 305b, OFS sends setting error message to OFC, and the error message of port energy conservation setup failed is reported To OFC.

It should be noted that step 301 is optional step in the present embodiment, correspondingly, OFC can direct root in step 302 Being determined according to global situation using integrated scheduling algorithm allows to carry out energy saving setting to port, and if OFS energy conservation is carried out to port It is arranged successfully, step 305a can not also be executed.

The present embodiment may be implemented to set the progress energy conservation of OFS idle port by the Signalling exchange between OFS and OFC It sets, so that idle port is closed or reduces rate and enters power save mode, to reduce the power consumption of the port OFS.

Fig. 4 is the signaling interaction diagram of switch port control method example IV provided by the invention, as shown in figure 4, should Embodiment of the method the following steps are included:

Step 401, OFC, which determine to cancel, carries out energy saving setting to port, and will determine that the port for cancelling energy conservation setting is corresponding Port numbers be filled into energy conservation cancel message port number field；

Step 402, OFC send energy conservation to OFS and cancel message, are cancelled by energy conservation cancellation message instruction and being disappeared to energy conservation The energy conservation setting of the corresponding port of the port numbers that breath includes；

Step 403, OFS, which cancel, is arranged the energy conservation of port；

If step 404a, OFS successfully cancels the energy conservation setting to port, OFS sends energy conservation cancellation response to OFC and disappears Breath, the non-power save mode of port is reported to OFC, no to then follow the steps 404b；

Step 404b, OFS is sent to OFC cancels error message, will cancel the mistake letter of the energy saving setup failed of port Breath is reported to OFC.

It should be noted that step can not also be executed if port progress energy conservation is arranged successfully in OFS in the present embodiment 404a。

This method embodiment can make the port into power save mode by the Signalling exchange between OFS and OFC, When network busy, restore normal operating conditions, so that guaranteeing the normal forwarding work of OFS while carrying out energy conservation to port.

Fig. 5 is the structural schematic diagram of SDN switch embodiment one provided by the invention, as shown in figure 5, the SDN switch 500 include: receiving module 501 and energy-saving module, and 502, wherein

Receiving module 501, for receiving the energy conservation setting message of SDN controller transmission, it includes end which, which is arranged message, Slogan and energy conservation instruction, energy conservation instruction are used to indicate the corresponding port of port number and carry out energy saving setting；

Energy-saving module 502 enters the port for carrying out energy saving setting to the port according to the energy conservation instruction Power save mode.

Further, the energy conservation setting message further includes energy saving rate, and the energy conservation rate is more than or equal to zero, the section Energy rate is used to indicate the speed adjust of the corresponding port of the port numbers to energy saving rate；

Correspondingly, the energy-saving module 502 is specifically used for being indicated according to the energy conservation by the corresponding port of the port numbers Present rate be set as the energy saving rate.

Preferably, the SDN switch 500 can also include determining module 503 and sending module 504, wherein

Determining module 503, for determining whether the port meets with flow threshold according to the port flow of the port Into the condition of power save mode；

Sending module 504, if determining that the port meets the condition into power save mode for the determining module 503, Then to the SDN controller sending port status message, the port status message include the corresponding port numbers in the port with And power save mode, power save mode are used to indicate port and are prepared to enter into power save mode, so as to receive the port status message SDN controller determines whether to carry out port energy saving setting according to power save mode.

Preferably, the port status message further includes expected rate, and the expected rate is used to indicate desired described The energy saving rate of port, so that the SDN controller for receiving the port status message determines energy conservation according to the expected rate Rate.

Optionally, the sending module 504, in the energy-saving module 502 according to the energy conservation instruction to the port numbers After corresponding port carries out energy saving setting, it is also used to:

If the energy-saving module 502 indicates successfully to carry out energy saving setting, Xiang Suoshu to the port according to the energy conservation SDN controller sends energy conservation setting response message, and the energy conservation setting response message includes the port numbers and energy conservation setting State, it is power save mode that the energy conservation setting state, which is used to indicate the port,.

Further, the sending module 504, in the energy-saving module 502 according to the energy conservation instruction to the port After number corresponding port carries out energy saving setting, it is also used to:

If the energy-saving module 502 carries out energy saving setup failed, Xiang Suoshu to the port according to the energy conservation instruction SDN controller sends setting error message, and the setting error message includes that error message is arranged in the port numbers and energy conservation, The energy conservation setting error message, which is used to indicate, carries out energy saving setup failed to the corresponding port of the port numbers.

Further, the receiving module 501, is also used to:

The energy-saving module 502 is also used to cancel according to the energy conservation indicating that the energy conservation of the port is arranged in cancellation, makes Power save mode is exited in the port.

Further, the energy-saving module 502, is specifically used for:

The maximum rate that the port allows is set by the rate of the port.

Preferably, the sending module 504 is cancelled instruction according to energy conservation in energy-saving module 502 and is cancelled to the port After energy conservation setting, it is also used to:

If the energy-saving module 502 cancels the energy conservation setting indicated successfully to cancel to the port according to the energy conservation, Energy conservation is sent to the SDN controller and cancels response message, and it includes the port numbers and section that response message is cancelled in the energy conservation State can be cancelled, it is non-power save mode which, which is used to indicate the port,.

Further, the sending module 504 cancels instruction cancellation pair according to the energy conservation in the energy-saving module 502 After the energy conservation setting of the port, it is also used to:

If the energy-saving module 502 cancels instruction cancellation to the energy saving setup failed of the port, to institute according to energy conservation It states SDN controller and sends and cancel error message, the cancellation error message includes that mistake letter is cancelled in the port numbers and energy conservation Breath, the energy conservation are cancelled error message and are used to indicate to the energy saving setup failed of the port numbers corresponding port cancellation.

The SDN switch 500 of offer described in the present embodiment can be used for executing the technical side of embodiment of the method shown in Fig. 1 Case, and corresponding step, realization principle and technology in the technical solution of embodiment of the method shown in Fig. 3 or Fig. 4 can be executed Effect be it is similar, specifically repeat no more.

Fig. 6 is the structural schematic diagram of SDN controller embodiment one provided by the invention, as shown in fig. 6, the SDN controller 600 comprise determining that module 601 and sending module 602, wherein

Determining module 601, for determining that the port to SDN switch carries out energy saving setting；

Sending module 602, for sending energy conservation setting message to SDN switch, the energy conservation setting message includes described The corresponding port numbers in port and energy conservation instruction, the energy conservation instruction, which is used to indicate, carries out energy saving setting to the port.

Further, the determining module 601, is specifically used for:

Further, the SDN controller 600 can also include: receiving module 603, wherein

Preferably, the receiving module 603, the port status message sent for receiving the SDN switch, the port Status message includes port numbers and power save mode, the power save mode be used to indicate the corresponding port of the port numbers prepare into Enter power save mode；

The determining module 601, is specifically used for:

The port numbers that the power save mode determination for including according to the port status message includes to the port status message Corresponding port carries out energy saving setting.

Further, the energy conservation setting message further includes energy saving rate, and the energy conservation rate is more than or equal to zero, the section Energy rate is used to indicate the speed adjust of the port to energy saving rate.

Preferably, the port status message further includes expected rate, and the determining module 601 was also used to according to the phase Rate is hoped to determine the energy saving rate.

Optionally, the receiving module 603 sends the energy conservation to the SDN switch in the sending module 602 and sets After setting message, it is also used to:

Alternatively, further, the receiving module 603 sends institute to the SDN switch in the sending module 602 After stating energy conservation setting message, it can be also used for:

Further, the determining module 601, is also used to:

The sending module 602 is also used to send energy conservation to the SDN switch and cancels message, and the energy conservation disappears Breath includes the corresponding port numbers in the port and instruction is cancelled in energy conservation, and the energy conservation cancels instruction and is used to indicate cancellation to described The energy conservation setting of the corresponding port of port numbers.

Optionally, the receiving module 603 sends the energy conservation to the SDN switch in the sending module 602 and takes After message, it is also used to:

Alternatively, further, the receiving module 603 sends institute to the SDN switch in the sending module 602 After stating energy conservation cancellation message, it is also used to:

The SDN controller 600 of offer described in the present embodiment can be used for executing the technical side of embodiment of the method shown in Fig. 2 Case, and corresponding step, realization principle and technology in the technical solution of embodiment of the method shown in Fig. 3 or Fig. 4 can be executed Effect be it is similar, specifically repeat no more.

Fig. 7 is the structural schematic diagram of SDN switch embodiment two provided by the invention, as shown in fig. 7, the SDN switch 700 include: the memory 701 and processor 702 connected by bus (as shown in heavy line in Fig. 7), wherein the memory 701 for storing program code, and the processor 702 executes embodiment of the method shown in Fig. 1 for calling said program code Corresponding step in the technical solution of embodiment of the method shown in technical solution and Fig. 3 or Fig. 4, implementing principle and technical effect Be it is similar, specifically repeat no more.

Fig. 8 is the structural schematic diagram of SDN controller embodiment two provided by the invention, as shown in figure 8, the SDN controller 800 include: the memory 801 and processor 802 connected by bus (as shown in heavy line in Fig. 8), wherein the memory 801 for storing program code, and the processor 802 executes method shown in Fig. 2 and implement for calling said program code Corresponding step, realization principle and technology in the technical solution of embodiment of the method shown in the technical solution and Fig. 3 or Fig. 4 of example Effect be it is similar, specifically repeat no more.

Fig. 9 is the structural schematic diagram of switch port control system embodiment provided by the invention, as shown in figure 9, the end Mouth control system 900 includes: SDN switch 901 and SDN controller 902, and wherein SDN switch 901 can be Fig. 5 or Fig. 7 institute The SDN switch shown, SDN controller 902 can be Fig. 6 or SDN controller shown in Fig. 8, can be used for executing Fig. 1 to Fig. 4 The technical solution of shown embodiment of the method, realization principle is similar with having the technical effect that, specifically repeats no more.

The embodiment of the present invention gives a kind of computer program product, which includes computer-readable Jie Matter, which includes batch processing code, for executing the step in switch port control method shown in above-mentioned Fig. 1, With for executing the step in switch port control method shown in above-mentioned Fig. 2.

Through the above description of the embodiments, it is apparent to those skilled in the art that the present invention can be with It is realized with hardware realization or firmware realization or their combination mode.It when implemented in software, can be by above-mentioned function Storage in computer-readable medium or as on computer-readable medium one or more instructions or code transmitted.Meter Calculation machine readable medium includes computer storage media and communication media, and wherein communication media includes convenient for from a place to another Any medium of a place transmission computer program.Storage medium can be any usable medium that computer can access.With For this but be not limited to: computer-readable medium may include RAM, ROM, EEPROM, CD-ROM or other optical disc storages, disk Storage medium or other magnetic storage apparatus or can be used in carry or store have instruction or data structure form expectation Program code and can be by any other medium of computer access.Furthermore.Any connection appropriate can become computer Readable medium.For example, if software is using coaxial cable, optical fiber cable, twisted pair, Digital Subscriber Line (DSL) or such as The wireless technology of infrared ray, radio and microwave etc is transmitted from website, server or other remote sources, then coaxial electrical The wireless technology of cable, optical fiber cable, twisted pair, DSL or such as infrared ray, wireless and microwave etc includes in affiliated medium In fixing.As used in the present invention, disk (Disk) and dish (disc) are logical including compression optical disc (CD), laser disc, optical disc, number With optical disc (DVD), floppy disk and Blu-ray Disc, the usually magnetic replicate data of which disk, and dish is then with laser come optical duplication Data.Combination above should also be as including within the protection scope of computer-readable medium.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution The range of scheme.

Claims

1. a kind of switch port control method characterized by comprising

Software defined network SDN switch determines that the port meets according to the port flow and flow threshold of the port and enters The condition of power save mode；Wherein, the port flow is less than the flow threshold；

For the SDN switch to SDN controller sending port status message, the port status message includes that the port is corresponding Port numbers and power save mode, the power save mode be used to indicate the port and be prepared to enter into power save mode；

The SDN switch receives the energy conservation setting message that software defined network SDN controller is sent, the energy conservation setting message Including port numbers and energy conservation instruction, the energy conservation instruction, which is used to indicate, sets the progress energy conservation of the port numbers corresponding port It sets；

The SDN switch carries out energy saving setting to the port according to the energy conservation instruction, and the port is made to enter energy saving shape State.

2. the method according to claim 1, wherein it is described energy conservation setting message further include energy saving rate, it is described Energy saving rate is more than or equal to zero, and the energy conservation rate is used to indicate the speed adjust of the port to the energy saving rate；

3. described the method according to claim 1, wherein the port status message further includes expected rate Expected rate is used to indicate the energy saving rate of the desired port.

4. method according to any one of claims 1 to 3, which is characterized in that the SDN switch refers to according to the energy conservation Show to after the energy saving setting of the port numbers corresponding port progress, further includes:

If the SDN switch indicates successfully to carry out energy saving setting, the SDN switch to the port according to the energy conservation Energy conservation setting response message is sent to the SDN controller, the energy conservation setting response message includes the port numbers and section State can be set, and it is power save mode that the energy conservation setting state, which is used to indicate the port,.

5. method according to any one of claims 1 to 3, which is characterized in that the SDN switch refers to according to the energy conservation Show to after the energy saving setting of the port numbers corresponding port progress, further includes:

If the SDN switch carries out energy saving setup failed, the SDN switch to the port according to the energy conservation instruction Setting error message is sent to the SDN controller, the setting error message includes that the port numbers and energy conservation setting are wrong False information, the energy conservation setting error message, which is used to indicate, carries out energy saving setup failed to the corresponding port of the port numbers.

6. method according to any one of claims 1 to 3, which is characterized in that further include:

The SDN switch receives the energy conservation that the SDN controller is sent and cancels message, and it includes described that message is cancelled in the energy conservation Instruction is cancelled in port numbers and energy conservation, and the energy conservation cancels instruction and is used to indicate the section cancelled to the corresponding port of the port numbers It can setting；

The SDN switch cancels instruction cancellation according to the energy conservation and the energy conservation of the port is arranged, and exits the port Power save mode.

7. according to the method described in claim 6, it is characterized in that, the SDN switch takes according to the energy conservation cancellation instruction The energy conservation setting to disappear to the port, comprising:

8. according to the method described in claim 6, it is characterized in that, the SDN switch takes according to the energy conservation cancellation instruction Disappear to after the energy conservation setting of the port, further includes:

If the SDN switch cancels the energy conservation setting indicated successfully to cancel to the port, the SDN according to the energy conservation Interchanger sends energy conservation to the SDN controller and cancels response message, and it includes the port numbers that response message is cancelled in the energy conservation And energy saving cancellation state, it is non-power save mode which, which is used to indicate the corresponding port of the port numbers,.

9. according to the method described in claim 6, it is characterized in that, the SDN switch takes according to the energy conservation cancellation instruction Disappear to after the energy conservation setting of the port, further includes:

If the SDN switch cancels energy saving setup failed of the instruction cancellation to the port, the SDN according to the energy conservation Interchanger is sent to the SDN controller cancels error message, and the cancellation error message includes the port numbers and energy conservation Cancel error message, the energy conservation cancellation error message, which is used to indicate, loses the cancellation energy conservation setting of the port numbers corresponding port It loses.

10. a kind of switch port control method characterized by comprising

Software defined network SDN controller receives the port status message that SDN switch is sent, and the port status message includes Port numbers and power save mode, the power save mode are used to indicate the corresponding port of the port numbers and are prepared to enter into power save mode, Wherein, it is the port by the SDN switch according to the port that the corresponding port of the port numbers, which is prepared to enter into power save mode, What flow and flow threshold determined, the port flow is less than the flow threshold；

The SDN controller determines the port numbers to software defined network SDN switch according to the port status information Corresponding port carries out energy saving setting；

The SDN controller sends energy conservation setting message to the SDN switch, and the energy conservation setting message includes the port Corresponding port numbers and energy conservation instruction, the energy conservation instruction, which is used to indicate, carries out energy saving setting to the port.

11. according to the method described in claim 10, it is characterized in that, the SDN controller is determined to the SDN switch Port carries out energy saving setting, comprising:

12. 0 described in any item methods according to claim 1, which is characterized in that the energy conservation setting message further includes energy saving speed Rate, the energy conservation rate are more than or equal to zero, and the energy conservation rate is used to indicate the speed adjust of the port to energy saving rate.

13. according to the method for claim 12, which is characterized in that the port status message further includes expected rate, institute It states SDN controller and the energy saving rate is determined according to the expected rate.

14. method according to any one of claims 10 to 13, which is characterized in that the SDN controller is handed over to the SDN It changes planes after sending the energy conservation setting message, further includes:

The SDN controller receives the energy conservation setting response message that the SDN switch is sent, the energy conservation setting response message Including port numbers and energy saving setting state, the energy conservation setting state is used to indicate the corresponding port of the port numbers as energy conservation State.

15. method according to any one of claims 10 to 13, which is characterized in that the SDN controller is handed over to the SDN It changes planes after sending the energy conservation setting message, further includes:

The SDN controller receives the setting error message that the SDN switch is sent, and the setting error message includes described Port numbers and energy conservation setting error message, the energy conservation setting error message are used to indicate to the corresponding port of the port numbers Carry out energy saving setup failed.

16. method according to any one of claims 10 to 13, which is characterized in that further include:

The SDN controller sends energy conservation to the SDN switch and cancels message, and it includes the port that message is cancelled in the energy conservation Instruction is cancelled in corresponding port numbers and energy conservation, and the energy conservation cancels instruction and is used to indicate cancellation to the corresponding end of the port numbers The energy conservation setting of mouth.

17. according to the method for claim 16, which is characterized in that the SDN controller sends institute to the SDN switch State energy conservation cancel message after, further includes:

The SDN controller receives the energy conservation that the SDN switch is sent and cancels response message, and response message is cancelled in the energy conservation Including the port numbers and energy saving cancellation state, the energy conservation cancellation state is used to indicate the corresponding port of the port numbers and is Non- power save mode.

18. according to the method for claim 16, which is characterized in that the SDN controller sends institute to the SDN switch State energy conservation cancel message after, further includes:

The SDN controller receives the cancellation error message that the SDN switch is sent, and the cancellation error message includes described Error message is cancelled in port numbers and energy conservation, and the energy conservation is cancelled error message and is used to indicate to the corresponding port of the port numbers Cancel energy saving setup failed.

19. a kind of software defined network SDN switch characterized by comprising

Determining module determines that the port meets the item into power save mode for the port flow and flow threshold according to port Part, wherein the port flow is less than the flow threshold；

Sending module, for software defined network SDN controller sending port status message, the port status message to include The corresponding port numbers in the port and power save mode, the power save mode are used to indicate the port and are prepared to enter into energy saving shape State；

Receiving module, the energy conservation setting message sent for receiving the SDN controller, the energy conservation setting message includes port Number and energy conservation instruction, the energy conservation instruction, which is used to indicate, carries out energy saving setting to the corresponding port of the port numbers；

Energy-saving module makes the port enter energy saving shape for carrying out energy saving setting to the port according to the energy conservation instruction State.

20. SDN switch according to claim 19, which is characterized in that the energy conservation setting message further includes energy saving speed Rate, the energy conservation rate are more than or equal to zero, and the energy conservation rate is used to indicate the rate tune of the corresponding port of the port numbers It is whole to arrive energy saving rate；

Correspondingly, the energy-saving module, specifically for being indicated according to the energy conservation by the current of the corresponding port of the port numbers Rate is set as the energy saving rate.

21. SDN switch according to claim 19, which is characterized in that the port status message further includes expectation speed Rate, the expected rate are used to indicate the energy saving rate of the desired port.

22. 9 to 21 described in any item SDN switches according to claim 1, which is characterized in that the sending module, described After energy-saving module carries out energy saving setting to the corresponding port of the port numbers according to the energy conservation instruction, it is also used to:

If the energy-saving module indicates successfully to carry out energy saving setting to the port according to the energy conservation, controlled to the SDN Device sends energy conservation setting response message, and the energy conservation setting response message includes the port numbers and energy saving setting state, institute Stating energy saving setting state and being used to indicate the corresponding port of the port numbers is power save mode.

23. 9 to 21 described in any item SDN switches according to claim 1, which is characterized in that the sending module, described After energy-saving module carries out energy saving setting to the corresponding port of the port numbers according to the energy conservation instruction, it is also used to:

If the energy-saving module carries out energy saving setup failed to the port according to the energy conservation instruction, controlled to the SDN Device sends setting error message, and the setting error message includes the port numbers and energy conservation setting error message, the section Error message can be arranged to be used to indicate to the energy saving setup failed of the port numbers corresponding port progress.

24. 9 to 21 described in any item SDN switches according to claim 1, which is characterized in that the receiving module is also used In:

It receives the energy conservation that the SDN controller is sent and cancels message, it includes that port numbers and energy conservation take that message is cancelled in the energy conservation Disappear instruction, and the energy conservation is cancelled indicating to be used to indicate to cancel and the energy conservation of the corresponding port of the port numbers is arranged；

The energy-saving module is also used to cancel according to the energy conservation indicating that the energy conservation of the port is arranged in cancellation, makes the end Mouth exits power save mode.

25. SDN switch according to claim 24, which is characterized in that the energy-saving module is specifically used for:

The maximum rate that the port allows is set by the rate of the port.

26. SDN switch according to claim 24, which is characterized in that the sending module, in the energy-saving module root After cancelling the energy conservation setting that instruction is cancelled to the port according to the energy conservation, it is also used to:

If the energy-saving module cancels the energy conservation setting indicated successfully to cancel to the port, Xiang Suoshu according to the energy conservation SDN controller sends energy conservation and cancels response message, and it includes that the port numbers and energy conservation are cancelled that response message is cancelled in the energy conservation State, it is non-power save mode which, which is used to indicate the corresponding port of the port numbers,.

27. SDN switch according to claim 24, which is characterized in that the sending module, in the energy-saving module root After cancelling the energy conservation setting that instruction is cancelled to the port according to the energy conservation, it is also used to:

If the energy-saving module cancels instruction cancellation to the energy saving setup failed of the port according to energy conservation, controlled to the SDN Device processed, which is sent, cancels error message, and the cancellation error message includes the port numbers and error message is cancelled in energy conservation, described Energy conservation is cancelled error message and is used to indicate to the energy saving setup failed of the port numbers corresponding port cancellation.

28. a kind of software defined network SDN controller characterized by comprising

Receiving module, for receiving the port status message of software defined network SDN switch transmission, the port status message Including port numbers and power save mode, the power save mode is used to indicate the corresponding port of the port numbers and is prepared to enter into energy saving shape State, wherein it is the port flow by SDN switch according to the port that the corresponding port of the port numbers, which is prepared to enter into power save mode, Amount determines that the port flow is less than the flow threshold with flow threshold；

Determining module, the power save mode for including according to the port status message, which determines, exchanges software defined network SDN The corresponding port of the port numbers of machine carries out energy saving setting；

Sending module, for sending energy conservation setting message to the SDN switch, the energy conservation setting message includes the port Corresponding port numbers and energy conservation instruction, the energy conservation instruction, which is used to indicate, carries out energy saving setting to the port.

29. SDN controller according to claim 28, which is characterized in that the determining module is specifically used for:

30. SDN controller according to claim 28, which is characterized in that the energy conservation setting message further includes energy saving speed Rate, the energy conservation rate are more than or equal to zero, and the energy conservation rate is used to indicate the speed adjust of the port to energy saving rate.

31. SDN controller according to claim 30, which is characterized in that the port status message further includes expectation speed Rate, the determining module are also used to determine the energy saving rate according to the expected rate.

32. according to the described in any item SDN controllers of claim 28 to 31, which is characterized in that the receiving module, described After sending module sends the energy conservation setting message to the SDN switch, it is also used to:

Receive the energy conservation setting response message that the SDN switch is sent, the energy conservation setting response message include port numbers with And energy saving setting state, it is power save mode that the energy conservation setting state, which is used to indicate the corresponding port of the port numbers,.

33. according to the described in any item SDN controllers of claim 28 to 31, which is characterized in that the receiving module, described After sending module sends the energy conservation setting message to the SDN switch, it is also used to:

The setting error message that the SDN switch is sent is received, the setting error message includes the port numbers and section Error message can be set, and the energy conservation setting error message, which is used to indicate, carries out energy saving setting to the corresponding port of the port numbers Failure.

34. according to the described in any item SDN controllers of claim 28 to 31, which is characterized in that the determining module is also used In:

The sending module is also used to send energy conservation to the SDN switch and cancels message, and it includes institute that message is cancelled in the energy conservation It states the corresponding port numbers in port and instruction is cancelled in energy conservation, the energy conservation cancels instruction and is used to indicate cancellation to the port numbers pair The energy conservation setting for the port answered.

35. SDN controller according to claim 34, which is characterized in that the receiving module, the sending module to After the SDN switch sends the energy conservation cancellation message, it is also used to:

It receives the energy conservation that the SDN switch is sent and cancels response message, it includes the port that response message is cancelled in the energy conservation Number and energy saving cancellation state, it is non-power save mode that the energy conservation cancellation state, which is used to indicate the corresponding port of the port numbers,.

36. SDN controller according to claim 34, which is characterized in that the receiving module, the sending module to After the SDN switch sends the energy conservation cancellation message, it is also used to:

The cancellation error message that the SDN switch is sent is received, the cancellation error message includes the port numbers and section Error message can be cancelled, the energy conservation is cancelled error message and is used to indicate to the cancellation energy conservation setting of the port numbers corresponding port Failure.

37. a kind of software defined network SDN switch characterized by comprising

The memory and processor connected by bus, wherein the memory is used for storing program code, the processor In calling said program code, switch port control method as described in any one of claim 1 to 9 is executed.

38. a kind of software defined network SDN controller characterized by comprising

The memory and processor and communication interface connected by bus, wherein the memory is for storing program code, institute Processor is stated for calling the program code of the memory storage, executes such as the described in any item exchanges of claim 10 to 18 Generator terminal mouth control method.

39. a kind of port control system characterized by comprising software defined network SDN exchange as claimed in claim 37 Machine and software defined network SDN controller as claimed in claim 38.