CN107197478A - A kind of flow equalization method based on forwarding ionization meter - Google Patents
A kind of flow equalization method based on forwarding ionization meter Download PDFInfo
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- CN107197478A CN107197478A CN201710588532.5A CN201710588532A CN107197478A CN 107197478 A CN107197478 A CN 107197478A CN 201710588532 A CN201710588532 A CN 201710588532A CN 107197478 A CN107197478 A CN 107197478A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/08—Load balancing or load distribution
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
Abstract
The present invention proposes a kind of flow equalization method based on forwarding ionization meter.The data total amount forwarded on contrast different communication interface, obtains difference in flow, when the difference in flow exceedes α times of communication interface upper signal channel speed R, and business data flow is forwarded in the relatively low communication interface of forwarding data total amount by interchanger；α is flow equalization threshold value, and α ∈ (0,1).The present invention can update flow table forwarding rule according to the data total amount forwarded on different communication interface, traffic load is balancedly shared on each interface, substantially increase the balanced utilization of multiplex roles smart machine resource, reduce congestion, the flow equalization of distinct interface is realized, more preferable QoS service is provided the user.
Description
Technical field
The invention belongs to communication technical field, and in particular to a kind of flow equalization method based on forwarding ionization meter.
Background technology
In unmanned systems cluster, to improve the overall capability to resist destruction and Supporting multi-services ability of system, unmanned systems etc.
Intelligent platform often supports a variety of communication channels of multiplex roles, and intelligent platform can be communicated using a variety of wireless communication modules.
When intelligent platform possesses multiple wireless communication interfaces, if flexibly and efficiently using different network interfaces, realize distinct interface
On load sharing, lifting resource utilization is an important problem in the communication of current intelligent platform.The present invention proposes a kind of
Flow equalization method based on forwarding ionization meter in multiple wireless communication modules of intelligent platform, enables intelligent platform root
Select different interfaces to forward data according to the traffic intensity forwarded on distinct interface, realize the efficient of radio channel resource
Utilize, intelligent platform is preferably met user's transmission requirement.
What Tsing-Hua University proposed《Data center network flow equalization method and device that a kind of software-oriented is defined》(patent
Application number 201610326176.5) data center network flow equalization method and device that a kind of software-oriented is defined are disclosed,
Method includes：The packet that controller desampler is sent, by the field progress in the feature field and flow table of packet
Match somebody with somebody, and according to it is default action priority by the action record of packet in the behavior aggregate of flow table；If the feature of packet
Field and the fields match success in flow table, then the sequence of movement in behavior aggregate, respective operations are performed to packet；If right
It should act and be forwarded for pretreatment, then judge whether the slot fields of packet match with the transmission time slot value in flow table, if matching,
Then packet is forwarded, if mismatching, data pack buffer to next time slot forwarded.The present invention flow equalization be
Slot fields according to packet realize flow equalization with whether the transmission time slot in flow table matches, according to time slot decision method
Extra transport overhead can be introduced.
What Huawei Tech Co., Ltd proposed《A kind of data center network and its flow equalization method and controller》(patent
Application number 201310202002.4) provide data center network and its flow equalization method and controller.Data center network
Including：One or more of controller configuration COS, TOS and TTL carry out the hash factors of ECMP routings as the network equipment；
The flow of Hypervisor or vSw in collection network equipment and physical server, determine the interconnected strands between the network equipment
Road failure or when determining to occur congestion according to flow, encapsulation control strategy is sent to hypervisor or vsw；Physical server
Determine the value of one or more of COS, TOS and ttl field of NVO3 messages on the physical server of source field；The network equipment
Receive controller configuration, carried out one or more of COS, TOS and TTL for being configured in NVO3 messages as the hash factors
ECMP routings.Flow equalization method in the data center network that the present invention is realized need the network equipment and physical server etc. its
He feeds back flow information at part cooperation, could realize flow equalization routing.
What Beijing Qiyi Century Technology Co., Ltd. proposed《Flow equalization system, method and dress between a kind of switch ports themselves
Put》Flow equalization system, method and device between a kind of switch ports themselves that (number of patent application 201611250318.0) is provided.With
Each cluster of interchanger connection includes communicating between the first LB, the first LB of each cluster.Each first LB monitorings
Whether the load of its affiliated cluster is excessive, if so, a service for then providing its affiliated cluster is transferred to other clusters.Dynamic
Carry out service transfer, reach interchanger connection different clusters between flow equalization, that is, realize the stream between each port of interchanger
Amount is balanced, and then improves resource utilization.
What China Linked Network Communication Group Co., Ltd proposed《A kind of flow equalization method and device》(number of patent application
201610819778.4) a kind of flow equalization method and device are provided, methods described includes：Receive the flow feedback that user sends
Solicited message, and obtain the user's reference value carried in the flow feedback request information；Obtain the real-time traffic load of network
Value；Determine that delay sends user according to user's reference value and the real-time traffic load value；User is sent to the delay
Transmitted traffic feedback response message；The delay is sent to network controls server and sends user profile, so that the network
Side controller sends data needed for user profile sends and sent in the acceptable time delay of user in the delay according to the delay
Bag.Flow equalization method and device provided by the present invention need the flow feedback request information sent according to user to data flow
Amount is shunted.
Existing technical scheme, it is usually required mainly for other equipment (user or special physical server etc.) coordinates in network
Feed back distinct interface on congestion state so that determine when or where carry out flow equalization.For the intelligence of multi-interface communication
For platform, the network equipment of similar monitoring congestion condition can be not necessarily present in network, and the congestion mechanism institute of the agreement such as TCP
The network congestion condition of reflection is again opaque, therefore the intelligent platform of multi-interface communication can not sentence for forwarding unit
Whether which disconnected current channel occurs congestion.
The content of the invention
The present invention proposes a kind of flow equalization method based on forwarding ionization meter.
In order to solve the above-mentioned technical problem, the present invention provides a kind of flow equalization method based on forwarding ionization meter, right
Than the data total amount forwarded on different communication interface, difference in flow is obtained, when the difference in flow exceedes communication interface upper signal channel
At α times of speed R, business data flow is forwarded in the relatively low communication interface of forwarding data total amount by interchanger；α is flow equalization
Threshold value, and α ∈ (0,1).
Further, many Communications Interface Units including based on openflow, set in many communication interfaces based on openflow
In standby, data distributing server is programmed configuration to interchanger according to data distribution demand by openflow interfaces, in fortune
Row order section, the flow table rule that interchanger is issued according to data distributing server, the data delivered service terminal are according to specified
Business datum is distributed in corresponding communication interface by forwarding rule and QoS demand；A data forwarding is often completed, interchanger is equal
The data total amount forwarded in correspondence communication interface is stored in locally.
Further, interchanger contrasts the forwarding data total amount of each interface, obtains converting flow difference FlowDiff, when
FlowDiff ＞ α, R interchanger update forwarding flow table.
Further, the communication interface is in wireless lan interfaces, shortwave interface, satellite communication interface or blue tooth interface
One or more..
Compared with prior art, its remarkable advantage is the present invention, and the present invention can connect according to intelligent platform different radio
The data total amount forwarded on mouth updates flow table forwarding rule, and traffic load is balancedly shared on each interface, greatly improved
The balanced utilization of multiplex roles smart machine resources, reduces congestion, realizes the flow equalization of distinct interface, provide the user more preferably
QoS service.
Brief description of the drawings
Fig. 1 is the embodiment schematic diagram of flow equalization method one based on forwarding ionization meter.
Fig. 2 is the flow equalization method flow chart based on forwarding ionization meter.
Fig. 3 is another embodiment schematic diagram of flow equalization method based on forwarding ionization meter.
Embodiment
It is readily appreciated that, according to technical scheme, in the case where not changing the connotation of the present invention, this area
Those skilled in the art can imagine the present invention based on forwarding ionization meter flow equalization method numerous embodiments.Cause
This, detailed description below and accompanying drawing are only the exemplary illustrations to technical scheme, and are not to be construed as this hair
Bright whole is considered as limitation or restriction to technical solution of the present invention.
The present invention is applied to the multiplex roles equipment communication based on openflow, and application includes but are not limited to unmanned system
System cluster.The present invention includes two parts, that is, forwards ionization meter and the flow equalization method based on this forwarding intensity.
In multiplex roles equipment communication based on openflow, data distributing server first can according to data distribution demand,
Such as type of service, forwarding rule and QoS demand, configuration is programmed to interchanger by openflow interfaces, in operation rank
Section, the flow table rule that interchanger is issued according to data distributing server, the data delivered service terminal are according to specified forwarding
Rule and QoS demand are by data distribution to corresponding wireless communication interface.A data forwarding is often completed simultaneously, and interchanger is all
The counting by the data total amount forwarded on correspondence wave point is needed to be stored in locally, i.e., the forwarding that the present invention is carried is strong
Degree.I.e. the data total bytes forwarded on the forwarding each wave point of intensity.
Flow equalization method based on forwarding ionization meter is provided the data transfer on each interface of multi-interface communication equipment
Load share method, prevents that data payload difference is excessive on distinct interface, and that causes that wireless communication resources utilize is unbalanced.This is equal
Difference in flow on weighing apparatus method main contrast's distinct interface, that is, forward the difference of intensity, when the difference exceedes interface upper signal channel speed
α times when, business data flow is forwarded on the relatively low wave point of forwarding intensity by exchange opportunity.Wherein parameter alpha is that flow is equal
Weigh threshold value, and its span is α ∈ (0,1).α values are smaller, and it is higher to represent flow equalization requirement, and interchanger can in forwarding
It can need continually to switch wireless communication interface to transmit data, α values are bigger, represent the forwarding that flow equalization can tolerate strong
Spend difference bigger.
Embodiment
A kind of flow equalization method based on forwarding ionization meter that the present embodiment is provided, as shown in Figure 1.Fig. 1 is Ben Ji
In the annexation figure of the flow equalization device of forwarding ionization meter.Comprising a QoS interface module in the figure, a virtual friendship
Module of changing planes and two radio interface modules.QoS communication interface modules is compiled by Openflow interfaces to virtual switch
Journey is configured, and the flow table forwarding rule on generation virtual switch, virtual switch is attached with wave point, works as intelligent platform
When producing business datum, virtual switch is forwarded on corresponding wireless communication interface according to flow table rule.In the present embodiment
Two wireless communication interfaces be in ultrashort wave interface, this example scheme can expand to more than three interface cases.Do not lose general
Property, it is assumed that the data rate that ultra-short wave interface can be supported is R.
When the data that virtual switch forwards rule to produce intelligent terminal according to flow table every time are forwarded, also to record
The forwarding intensity of the data total amount, i.e. wave point that have been forwarded on each wave point, makes SumdataiRepresent wave point i
On forwarding intensity, virtual switch is before being forwarded, it is necessary to compare the forwarding on ultrashort wave interface 1 and ultrashort wave interface 2
Strength difference FlowDiff, wherein FlowDiff=| Sumdata1-Sumdata2|, if FlowDiff ＞ α R, virtual switch
Chance sends current business datum to the forwarding less ultrashort wave interface of intensity.Wherein parameter alpha is flow equalization thresholding
Value, its span is α ∈ (0,1).α values are smaller, and it is higher to represent flow equalization requirement, and interchanger may need in forwarding
Continually switch wireless communication interface to transmit data, α values are bigger, represent the forwarding strength difference that flow equalization can be tolerated
It is bigger.α values dynamic can be set according to different flow equalization demands, and suggestion takes α=0.5 in the present embodiment, so may be used
To realize that the balanced of multiple radio interface communication resources is utilized, prevent that factor data forwards intensity too high and causes to gather around on individual interfaces
Plug, influence user service experience.
With reference to Fig. 2, based on the flow equalization method of forwarding ionization meter, step is as follows：
T101：QoS communication modules generate flow table forwarding rule according to type of service and QoS demand etc.,
T102：QoS communication modules are programmed control to interchanger by Openflow interfaces, raw on virtual switch
Into corresponding forwarding rule
T103：Virtual switch forwards rule according to flow table, and business datum is forwarded on corresponding wave point, and is remembered
Record and forward intensity on each interface
T104：Virtual switch contrasts the forwarding intensity of each interface, obtains forwarding strength difference FlowDiff
T105：Virtual switch compares whether forwarding strength difference FlowDiff exceedes pre-determined threshold α R, wherein α=0.5.
If it exceeds pre-determined threshold, virtual switch updates forwarding flow table, business datum is forwarded on the smaller channel of forwarding intensity.
A kind of flow equalization method based on forwarding ionization meter extends embodiment
Assuming that in Fig. 1 on the basis of two shortwave wave points, then a shortwave wave point is extended, now with three
Individual shortwave wave point.As shown in Figure 3.Virtual switch is contrasting the forwarding intensity of each interface, obtains forwarding strength difference
During FlowDiff, it is only necessary to according to compare forwarding intensity highest ultrashort wave interface and the minimum ultrashort wave interface of forwarding intensity from
And obtain forwarding strength difference FlowDiff, when FlowDiff exceedes pre-determined threshold α R, wherein α=0.5 updates forwarding flow table
Business is forwarded on the minimum ultrashort wave interface of forwarding intensity.
This programme multiplex roles form can also be wireless lan interfaces, shortwave interface satellite communication interface, blue tooth interface
Etc..
Claims (4)
1. a kind of flow equalization method based on forwarding ionization meter, it is characterised in that turned on contrast different communication interface
The data total amount of hair, obtains difference in flow, when the difference in flow exceedes α times of communication interface upper signal channel speed R, and interchanger is by industry
Business stream compression is sent in the relatively low communication interface of forwarding data total amount；α is flow equalization threshold value, and α ∈ (0,1).
2. as claimed in claim 1 based on forwarding ionization meter flow equalization method, it is characterised in that including based on
Openflow many Communications Interface Units, in many Communications Interface Units based on openflow, data distributing server according to
Data distribution demand, configuration is programmed to interchanger by openflow interfaces, and in the operation phase, interchanger is according to data point
The flow table rule that hair server is issued, the data delivered service terminal are according to specified forwarding rule and QoS demand by business
Data distribution is in corresponding communication interface；A data forwarding is often completed, interchanger will turn in correspondence communication interface
The data total amount of hair is stored in locally.
3. the flow equalization method as claimed in claim 2 based on forwarding ionization meter, it is characterised in that interchanger contrast respectively connects
The forwarding data total amount of mouth, obtains converting flow difference FlowDiff, as FlowDiff ＞ α R, and interchanger updates forwarding flow table.
4. any one flow equalization method based on forwarding ionization meter as described in claims 1 to 3, it is characterised in that described
Communication interface is the one or more in wireless lan interfaces, shortwave interface, satellite communication interface or blue tooth interface.
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Application publication date: 20170922 |
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