CN109617806A - A kind of data traffic dispatching method and device - Google Patents
A kind of data traffic dispatching method and device Download PDFInfo
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- CN109617806A CN109617806A CN201811605042.2A CN201811605042A CN109617806A CN 109617806 A CN109617806 A CN 109617806A CN 201811605042 A CN201811605042 A CN 201811605042A CN 109617806 A CN109617806 A CN 109617806A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/38—Flow based routing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/70—Routing based on monitoring results
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0876—Network utilisation, e.g. volume of load or congestion level
- H04L43/0894—Packet rate
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Abstract
The embodiment of the invention provides a kind of data traffic dispatching method and devices, method includes: the bandwidth usage for obtaining data traffic, and for each link being used for transmission between the source interface of the data traffic and purpose interface, obtain the data traffic source interface go out direction residue can bandwidth allocation, the purpose interface of the data traffic enters that direction residue can the link residue of the link can bandwidth allocation between bandwidth allocation and source interface and purpose interface, for each link, judge whether bandwidth usage meets preset condition, from the link that bandwidth usage meets preset condition, select the link transmission data traffic, preset condition include: bandwidth usage be less than or equal to source interface go out direction residue can bandwidth allocation, bandwidth usage be less than or equal to purpose interface enter direction residue can bandwidth allocation and bandwidth usage be less than or Link residue equal to the link can bandwidth allocation.By this programme, the data traffic scheduling of multi-multipoint networking may be implemented.
Description
Technical field
The present invention relates to fields of communication technology, more particularly to a kind of data traffic dispatching method and device.
Background technique
SDN (Software Defined Network, software defined network) is a kind of implementation of network virtualization,
By separating network equipment control plane with data surface, realizes the flexible dispatching of data traffic, make network as transfer tube
Road becomes more intelligent.
Flow scheduling function is the important application of SDN technology, and network state information is the important evidence of flow scheduling.Network
Status information mainly includes that the link quality informations such as delay, packet loss, shake and link can the links such as bandwidth allocation, link consumption
Attribute information.The principle of flow scheduling includes: the quality requirement that link-quality meets data traffic transmission；Link residue can distribute
The minimum value of bandwidth is greater than or equal to the bandwidth value that data traffic needs occupied bandwidth.
SDN networking usually has a point-to-point network model, that is, interface go out direction or to enter direction only right
A link is answered, the bandwidth that applied bandwidth and data traffic have occupied when based on network deployment can determine outgoing link
Residue can bandwidth allocation, in turn, for data traffic to be transmitted, as long as the bandwidth usage of the data traffic is less than or equal to
Link residue can bandwidth allocation, link can the normal transmission data traffic.However, the interface resource of practical networking is limited,
There are multilink share an interface the case where, as shown in Figure 1, due to each of the links residue can bandwidth allocation suffer from
Share other links of an interface it is remaining can bandwidth allocation influence, thus can not clearly cook up the residue of each of the links
Can bandwidth allocation, lead to be difficult to realize the data traffic scheduling of multi-multipoint networking.
Summary of the invention
The embodiment of the present invention is designed to provide a kind of data traffic dispatching method and device, multi-multipoint to realize
The data traffic of networking is dispatched.Specific technical solution is as follows:
In a first aspect, the embodiment of the invention provides a kind of data traffic dispatching methods, which comprises
The bandwidth usage of data traffic is obtained, and for the source interface and purpose interface for being used for transmission the data traffic
Between each link, obtain the data traffic source interface go out direction residue can bandwidth allocation, the data traffic mesh
Interface enter that direction residue can the link residue of the link can between bandwidth allocation and the source interface and the purpose interface
Bandwidth allocation；
For each link, judge whether the bandwidth usage meets preset condition, the preset condition includes: the band
Wide occupancy be less than or equal to the source interface go out direction residue can bandwidth allocation, the bandwidth usage be less than or equal to it is described
Purpose interface enter direction residue can bandwidth allocation and the bandwidth usage be less than or equal to the link residue of the link and can divide
With bandwidth；
From the link that the bandwidth usage meets the preset condition, data flow described in a link transmission is selected
Amount.
Second aspect, the embodiment of the invention provides a kind of data traffic dispatching device, described device includes:
Module is obtained, for obtaining the bandwidth usage of data traffic, and for the source for being used for transmission the data traffic
Each link between interface and purpose interface, obtain the data traffic source interface go out direction residue can bandwidth allocation, institute
State data traffic purpose interface enter direction residue can the chain between bandwidth allocation and the source interface and the purpose interface
The link residue on road can bandwidth allocation；
Judgment module judges whether the bandwidth usage meets preset condition, the default item for being directed to each link
Part include: the bandwidth usage be less than or equal to the source interface go out direction residue can bandwidth allocation, the bandwidth usage
Less than or equal to the purpose interface enter direction residue can bandwidth allocation and the bandwidth usage be less than or equal to the link
Link residue can bandwidth allocation；
Selecting module, for from the link that the bandwidth usage meets the preset condition, selecting a link to pass
The defeated data traffic.
The third aspect, the embodiment of the invention provides a kind of SDN controllers, including processor and machine readable storage to be situated between
Matter, wherein the machine readable storage medium is stored with the machine-executable instruction that can be executed by the processor, the machine
Device executable instruction is loaded and is executed by the processor, to realize that method provided by first aspect of the embodiment of the present invention walks
Suddenly.
Fourth aspect, the embodiment of the invention provides a kind of machine readable storage medium, the machine readable storage medium
It is inside stored with machine-executable instruction, the machine-executable instruction realizes that the present invention is real when being loaded and being executed by processor
Apply method and step provided by a first aspect.
A kind of data traffic dispatching method and device provided in an embodiment of the present invention, by introducing interface bandwidth attribute (source
Interface go out direction can bandwidth allocation and purpose interface enter direction can bandwidth allocation), when carrying out data traffic scheduling, not only sentence
Whether the bandwidth usage of disconnected data traffic is less than or equal to link residue can bandwidth allocation, it is also necessary to judge that bandwidth usage is
It is no be less than or equal to source interface go out direction residue can bandwidth allocation and bandwidth usage whether be less than or equal to purpose interface and enter
Direction residue can bandwidth allocation can choose out the link of transmitting data stream amount when three above Rule of judgment is all satisfied.
For multi-multipoint networking, one source interface of all link sharings and a purpose interface, even if can not be accurate
Know each of the links link residue can bandwidth allocation, due to being configured with interface bandwidth attribute, no matter which link transmission number
According to flow, can all make source interface go out direction residue can bandwidth allocation and purpose interface enter direction residue can bandwidth allocation reduce,
From interface residue can bandwidth allocation may determine that whether therefore, can pass through with normal transmission data traffic between two interfaces
Interface bandwidth attribute is introduced, the interface band width resource for realizing multilink in multi-multipoint networking is shared, to realize
The data traffic of multi-multipoint networking is dispatched.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of the multi-multipoint networking of the embodiment of the present invention；
Fig. 2 is the flow diagram of the data traffic dispatching method of the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of the data traffic dispatching device of the embodiment of the present invention；
Fig. 4 is the structural schematic diagram of the SDN controller of the embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In order to realize the data traffic scheduling of multi-multipoint networking, the embodiment of the invention provides a kind of data traffic tune
Spend method, apparatus, SDN controller and machine readable storage medium.In the following, being provided for the embodiments of the invention data flow first
Amount dispatching method is introduced.
The executing subject of data traffic dispatching method provided by the embodiment of the present invention is SDN controller, and SDN controller is
It is responsible for the network equipment of flow scheduling in SDN.Certainly, SDN controller is also used as the operation of control software on network devices,
Convenient for network automatically management.
As shown in Fig. 2, a kind of data traffic dispatching method provided by the embodiment of the present invention, may include steps of.
S201 obtains the bandwidth usage of data traffic, and for the source interface and purpose for being used for transmission the data traffic
Each link between interface, obtain the data traffic source interface go out direction residue can bandwidth allocation, the data traffic mesh
Interface enter direction residue and the link residue of the link can distribute band between bandwidth allocation and source interface and purpose interface
It is wide.
SDN controller determines what the data traffic needed to occupy according to the size of data traffic a certain in a period of time
Amount of bandwidth, the amount of bandwidth are the bandwidth usage of data traffic.
When carrying out network deployment, according to each interface can transmitting data stream amount transmittability, match generally directed to each interface
It is equipped with interface bandwidth ability, for example, the data flow magnitude per second transmitted is up to 1000M for some interfaces, then can be matched
Setting interface bandwidth ability is 1000M, and for other interfaces, the data flow magnitude per second transmitted is up to 500M, then may be used
To configure interface bandwidth ability as 500M.
Often carry the address information of source interface and the address information of purpose interface in data traffic, SDN controller from
And it is capable of determining that the source interface and purpose interface of data traffic.It, can be by the interface bandwidth ability of source interface for source interface
Be determined as source interface go out direction can bandwidth allocation；For purpose interface, the interface bandwidth ability of purpose interface can be determined as
Purpose interface enters direction can bandwidth allocation.Source interface go out direction can bandwidth allocation and purpose interface enter direction can bandwidth allocation be to connect
Mouthful attribute information, source interface go out direction residue can bandwidth allocation be source interface go out direction can bandwidth allocation it is corresponding with the source interface
The difference of occupied bandwidth, purpose interface enter direction residue can bandwidth allocation be purpose interface enter direction can bandwidth allocation and the mesh
The corresponding occupied bandwidth of interface difference.
Optionally, following steps can also be performed in data traffic dispatching method provided by the embodiment of the present invention:
For the either interface of transmitting data stream amount, identify that the interface goes out direction number of links corresponding with direction is entered
Mesh；
If the interface go out direction only correspond to a link, be arranged the interface go out direction can bandwidth allocation for infinity, and
According to the first preset configuration bandwidth, determining that the interface goes out the links of direction respective links can bandwidth allocation；
If the interface, which goes out direction, corresponds to multilink, according to the pre-set bandwidths ability of the interface, which is set and side
To can bandwidth allocation, and be arranged the interface go out direction correspond to each link link can bandwidth allocation be infinity；
If the interface enter direction only correspond to a link, be arranged the interface enter direction can bandwidth allocation for infinity, and
According to the second preset configuration bandwidth, determining that the interface enters the links of direction respective links can bandwidth allocation；
If the interface, which enters direction, corresponds to multilink, according to the pre-set bandwidths ability of the interface, which is set
To can bandwidth allocation, and be arranged the interface enter direction correspond to each link link can bandwidth allocation be infinity.
The case where for point-to-point networking, transmits number that is, if the link between source interface and purpose interface is only one
The most intuitive attribute influenced according to flow be link residue can bandwidth allocation, thus can not consider that source interface goes out direction residue
Can bandwidth allocation and purpose interface enter direction residue can bandwidth allocation, setting source interface goes out direction can bandwidth allocation and purpose interface
Enter direction can bandwidth allocation infinity.And the case where being directed to how point-to-multipoint networking, i.e., if source interface and purpose interface it
Between link be it is a plurality of, the most intuitive attribute that transmitting data stream amount is influenced be source interface go out direction residue can bandwidth allocation and
Purpose interface enter direction residue can bandwidth allocation, thus can not consider link residue can bandwidth allocation, setting link can distribute
The infinity of bandwidth.
Therefore, for any one interface of transmitting data stream amount in SDN, SDN controller is firstly the need of the identification interface
Direction number of links corresponding with direction is entered out.Know method for distinguishing to be described above.
If interface goes out direction and only corresponds to a link, applied link bandwidth when can be disposed according to network (the
One preset configuration bandwidth), be arranged the interface go out direction respective links link can bandwidth allocation be equal to the first preset configuration bandwidth,
Link can bandwidth allocation can be used as the attribute information of link；Similarly, if interface enters direction and only corresponds to a link, accordingly may be used
With determine the interface enter direction respective links link can bandwidth allocation be equal to the second preset configuration bandwidth.Also, it is connect for two
Between mouthful the case where an only link, the attribute of the more intuitive influence of data traffic be link residue can bandwidth allocation, and it is right
In the interface as source interface go out direction can bandwidth allocation and as a purpose the interface of interface enter direction can bandwidth allocation shadow
Sound is not to pay special attention to, and go out side to meet the bandwidth usage of data traffic less than or equal to the interface as source interface
To it is remaining can bandwidth allocation and as a purpose the interface of interface enter direction residue can bandwidth allocation condition, interface can be gone out
The interface that direction only corresponds to a link go out direction can bandwidth allocation be set as infinitely great, interface is entered to direction only correspond to a chain
The interface on road enter direction can bandwidth allocation be set as infinitely great, i.e., by the interface as source interface go out direction can bandwidth allocation be arranged
For infinity, by the interface of interface as a purpose enter direction can bandwidth allocation be set as infinitely great.
If interface, which goes out direction, corresponds to multilink, the interface can be set and according to the pre-set bandwidths ability of interface
Direction can bandwidth allocation, for example, the pre-set bandwidths ability of interface is 1000M, then band can be distributed by the interface can be set going out direction
Width is 1000M.Simultaneously as the most intuitive attribute that transmitting data stream amount is influenced goes out direction residue for source interface and can distribute band
Wide and purpose interface enter direction residue can bandwidth allocation, thus can not consider link residue can bandwidth allocation, due to multiple spot pair
In multiple spot networking between source interface and purpose interface each link link can bandwidth allocation can not know, in order to meet data traffic
Bandwidth usage be less than or equal to link link residue can bandwidth allocation condition, the interface can be set, and to go out direction corresponding
The link of each link can bandwidth allocation be infinity.Similarly, it if interface enters direction and corresponds to multilink, can set accordingly
Set the interface enter direction can bandwidth allocation and the interface enter direction correspond to each link link can bandwidth allocation, such as can be set
The interface enter direction can bandwidth allocation be 500M, interface enter direction correspond to each link link can bandwidth allocation be infinitely great.
In the present embodiment, when interface, which goes out direction, or enters direction corresponds to multilink, the source interface of each link goes out direction
Residue can bandwidth allocation, purpose interface enter direction residue can bandwidth allocation be the same, for example, the source interface of each link goes out direction
Residue can bandwidth allocation be source interface pre-set bandwidths ability 1000M, the purpose interface of each link, which enters direction residue, to be distributed
Bandwidth is the pre-set bandwidths ability 500M of purpose interface.
S202 judges whether the bandwidth usage of data traffic meets preset condition for each link, wherein default item
Part include: bandwidth usage be less than or equal to source interface go out direction residue can bandwidth allocation, bandwidth usage be less than or equal to mesh
Interface enter direction residue can bandwidth allocation and bandwidth usage be less than or equal to the link residue of the link and can distribute band
It is wide.
Traditional point-to-point networking is when carrying out data traffic scheduling, it is only necessary to judge link bandwidth attribute, that is, judge number
It can bandwidth allocation according to whether the bandwidth usage of flow is less than or equal to link residue.But for multi-multipoint networking and
Speech, the links of each of the links can bandwidth allocation can not know, then cannot achieve data traffic scheduling.
In the embodiment of the present invention, introduce source interface go out direction can bandwidth allocation and purpose interface enter direction and can distribute band
Width, although the link residue of each of the links can bandwidth allocation can not know, however, it is possible to get source interface go out direction residue can
Bandwidth allocation and purpose interface enter direction residue can bandwidth allocation, no matter which link transmission data flow, can make source
Interface go out direction residue can bandwidth allocation and purpose interface enter direction residue can bandwidth allocation reduce.Therefore, the embodiment of the present invention
By judging the following conditions: bandwidth usage whether be less than or equal to source interface go out direction residue can bandwidth allocation, band
Wide occupancy whether be less than or equal to purpose interface enter direction residue can bandwidth allocation and bandwidth usage whether be less than or wait
It can bandwidth allocation in link residue.If the bandwidth usage of data traffic is all satisfied these three conditions, illustrate source interface and
Link between purpose interface can transmit the data traffic.
In conclusion source interface goes out direction residue can if the link between source interface and purpose interface is only one
Bandwidth allocation and purpose interface enter direction residue can bandwidth allocation be all it is infinitely great, when judging, the bandwidth of data traffic
Occupancy centainly can satisfy less than or equal to source interface go out direction residue can bandwidth allocation, less than or equal to the purpose interface side of entering
To it is remaining can bandwidth allocation condition, only need to judge whether bandwidth usage is less than or equal to link residue in this way, being equivalent to
It can bandwidth allocation.Such case is equivalent to traditional point-to-point networking structure, can according to bandwidth usage and link residue
The comparison result of bandwidth allocation determines whether this link can be with normal transmission data traffic.
If the link between source interface and purpose interface is a plurality of, the chain of each link between source interface and purpose interface
Road residue can bandwidth allocation be infinity, when judging, the bandwidth usage of data traffic centainly can satisfy be less than or
Equal to link residue can bandwidth allocation condition, only need to judge whether bandwidth usage is less than or equal to source in this way, being equivalent to
Interface go out direction residue can bandwidth allocation, bandwidth usage whether be less than or equal to purpose interface enter direction residue can bandwidth allocation
?.In this multi-multipoint networking structure, since the link residue of each link between source node and destination node can
Bandwidth allocation can not know, still, by configuring interface bandwidth attribute, it is remaining can with transmitting data stream amount can bandwidth allocation
Can be gone out by source interface direction residue can bandwidth allocation and purpose interface enter direction residue can bandwidth allocation codetermine, for example,
Source interface residue can bandwidth allocation be 500M, purpose interface residue can bandwidth allocation be 200M, then source interface and purpose interface it
Between the data traffic maximum that can transmit may not exceed 200M, can be with if data traffic meets the requirement for being no more than 200M
A link transmission data flow is selected in each link between source interface and purpose interface.
S203 selects a link transmission data flow from the link that bandwidth usage meets preset condition.
For multi-multipoint networking, if meeting above three condition, it is determined that can between source interface and purpose interface
To transmit the data traffic, then it can use default link preference policy, the multilink between source interface and purpose interface
In, select link to consume the smallest link transmission data flow, or the link of preset condition can be met from bandwidth usage
In, arbitrarily select a link transmission data flow.
Optionally, after executing S203, data traffic dispatching method provided by the embodiment of the present invention be can also be performed
Following steps:
Identify the number of links between source interface and purpose interface；
If the link between source interface and purpose interface is only one, by the link residue of the link can bandwidth allocation subtract
The bandwidth usage for going data traffic, obtaining the updated link residue of the link can bandwidth allocation；
If link between source interface and purpose interface be it is a plurality of, by source interface go out direction residue can bandwidth allocation subtract
The bandwidth usage of data traffic, obtain updated source interface go out direction residue can bandwidth allocation, and by the purpose interface side of entering
To residue can bandwidth allocation subtract bandwidth usage, obtain updated purpose interface enter direction residue can bandwidth allocation.
After link transmission data flow, need to link residue can bandwidth allocation, source interface goes out direction residue to divide
With bandwidth, purpose interface enter direction residue can bandwidth allocation be updated.For traditional point-to-point networking (i.e. source interface and mesh
Interface between link be only one), after transmitting data stream amount, the link residue of the link can bandwidth allocation can reduce,
Specifically, link residue can bandwidth allocation reduce be data traffic occupy bandwidth, therefore, updated link residue can
Bandwidth allocation be the link link residue can bandwidth allocation subtract data traffic bandwidth usage difference.
For multi-multipoint networking (link i.e. between source interface and purpose interface is a plurality of), in transmitting data stream amount
Afterwards, source interface go out direction residue can bandwidth allocation and purpose interface enter direction residue can bandwidth allocation can reduce.Specifically, source connects
Mouthful go out direction residue can bandwidth allocation and purpose interface enter that direction residue can bandwidth allocation reduces is what data traffic occupied
Bandwidth, therefore, updated source interface go out direction residue can bandwidth allocation be source interface go out direction residue can bandwidth allocation subtract
The difference of the bandwidth usage of data traffic, updated purpose interface enter direction residue can bandwidth allocation be the purpose interface side of entering
To it is remaining can bandwidth allocation subtract data traffic bandwidth usage difference.
Optionally, the step of identifying the number of links between source interface and purpose interface, is specifically as follows:
Judge link between source interface and purpose interface link can bandwidth allocation whether be infinitely great；
If infinity, it is determined that the link between source interface and purpose interface is a plurality of；
If not infinitely great, it is determined that the link between source interface and purpose interface is only one.
For multi-multipoint networking, by the link of link each between source interface and purpose interface can bandwidth allocation be set as
Infinity, therefore, can by judge link between source interface and purpose interface link can bandwidth allocation whether be infinite
It is big to determine that the link between source interface and purpose interface is one or a plurality of.If it is infinity, then it can determine that source connects
Mouthful and purpose interface between link be it is a plurality of, if not infinity, then can determine between source interface and purpose interface
Link is only one.
Optionally, following steps can also be performed in data traffic dispatching method provided by the embodiment of the present invention:
If the link between source interface and purpose interface is only one, keeping source interface to go out direction residue can bandwidth allocation
With purpose interface enter direction residue can bandwidth allocation be infinitely great constant；
If link between source interface and purpose interface be it is a plurality of, keep each link link residue can bandwidth allocation be
It is infinitely great constant.
In order to guarantee that data traffic dispatching method provided by the embodiment of the present invention is not only suitable for point-to-point networking, it is also suitable
In multi-multipoint networking, if the link between source interface and purpose interface is only one, transmitting data stream amount is influenced
Most intuitively be link residue can bandwidth allocation, thus can not update source interface go out direction residue can bandwidth allocation and purpose
Interface enter direction residue can bandwidth allocation, always remain as source interface go out direction can bandwidth allocation and purpose interface enter direction and can divide
Infinity with bandwidth；If link between source interface and purpose interface be it is a plurality of, transmitting data stream amount is influenced most straight
See be source interface go out direction residue can bandwidth allocation and purpose interface enter direction residue can bandwidth allocation, thus can not be more
New link residue can bandwidth allocation, always remain as link can bandwidth allocation infinity.
Using the present embodiment, the bandwidth usage of data traffic is obtained, for the source interface for being used for transmission the data traffic
Each link between purpose interface, obtain the data traffic source interface go out direction residue can bandwidth allocation, the data flow
The purpose interface of amount, which enters direction residue, the link residue of the link can divide between bandwidth allocation and source interface and purpose interface
With bandwidth, for each link, by judging whether bandwidth usage meets preset condition, the link that selection meets preset condition is passed
Defeated data traffic, wherein preset condition includes: that bandwidth usage is less than or equal to source interface and goes out direction residue and can distribute band
Wide, bandwidth usage be less than or equal to purpose interface enter direction residue can bandwidth allocation and bandwidth usage be less than or equal to
The link residue of the link can bandwidth allocation.By introducing interface bandwidth attribute, (source interface goes out direction can bandwidth allocation and purpose
Interface enters direction can bandwidth allocation), when carrying out data traffic scheduling, not only judge data traffic bandwidth usage whether
It can bandwidth allocation less than or equal to link residue, it is also necessary to judge whether to be less than or equal to source interface by bandwidth usage that go out direction surplus
It is remaining can bandwidth allocation and bandwidth usage whether be less than or equal to purpose interface enter direction residue can bandwidth allocation, above
When three Rule of judgment are all satisfied, the link of transmitting data stream amount can choose out.
For multi-multipoint networking, one source interface of all link sharings and a purpose interface, even if can not be accurate
Know each of the links link residue can bandwidth allocation, due to being configured with interface bandwidth attribute, no matter which link transmission number
According to flow, can all make source interface go out direction residue can bandwidth allocation and purpose interface enter direction residue can bandwidth allocation reduce,
From interface residue can bandwidth allocation may determine that whether therefore, can pass through with normal transmission data traffic between two interfaces
Interface bandwidth attribute is introduced, the interface band width resource for realizing multilink in multi-multipoint networking is shared, to realize
The data traffic of multi-multipoint networking is dispatched.
Data traffic dispatching method provided by embodiment to facilitate the understanding of the present invention, it is right below with reference to specific example
Data traffic dispatching method provided by the embodiment of the present invention is introduced.
If Fig. 1, interface A are the source interface of the first data traffic, interface B is the purpose interface of the first data traffic, due to
Link more than one of the interface A as source interface, interface B as a purpose interface link be more than one, therefore, SDN control
Device can know link between interface A and interface B link can bandwidth allocation be infinity, may thereby determine that and interface A and connect
Link between mouth B is a plurality of (such as having polymerize a plurality of physical link between interface A and interface B).
If SDN controller get interface A go out direction residue can bandwidth allocation be 500M, interface B enters direction residue can
Bandwidth allocation is 200M, between interface A and interface B each link link residue can bandwidth allocation be it is infinitely great, then knowing the
When the bandwidth usage of one data traffic, using bandwidth usage respectively with above three residue can bandwidth allocation be compared,
For example, the bandwidth usage of the first data traffic is 50M, it can determine that bandwidth usage goes out direction residue less than interface A and can divide
With bandwidth, bandwidth usage be less than interface B enter direction residue can bandwidth allocation, and bandwidth usage is again smaller than interface A and connecing
Between mouthful B the link residue of each link can bandwidth allocation, hence, it can be determined that can normal transmission first between interface A and interface B
Data traffic, so as to select first data traffic of link transmission in the link between interface A and interface B.
If bandwidth usage can have any one in the result that is compared of bandwidth allocation with above three residue respectively
It is unsatisfactory for the condition being less than or equal to, for example, the bandwidth usage of the first data traffic is 250M, can determine bandwidth usage
Less than interface A go out direction residue can bandwidth allocation, bandwidth usage be greater than interface B enter direction residue can bandwidth allocation, and band
Wide occupancy again smaller than link each between interface A and interface B link residue can bandwidth allocation, at this point, interface B enter direction without
Method completely receives the first data traffic, hence, it can be determined that can not transmit the first data traffic between interface A and interface B.
Corresponding to above method embodiment, the embodiment of the invention provides a kind of data traffic dispatching devices, such as Fig. 3 institute
Show, which may include:
Module 310 is obtained, for obtaining the bandwidth usage of data traffic, and is directed to and is used for transmission the data traffic
Each link of source interface and purpose interface time, obtain the data traffic source interface go out direction residue can bandwidth allocation,
The purpose interface of the data traffic, which enters direction residue, to be somebody's turn to do between bandwidth allocation and the source interface and the purpose interface
The link residue of link can bandwidth allocation；
Judgment module 320, it is described pre- for judging whether the bandwidth usage meets preset condition for each link
If condition include: the bandwidth usage be less than or equal to the source interface go out direction residue can bandwidth allocation, the bandwidth account for
Dosage be less than or equal to the purpose interface enter direction residue can bandwidth allocation and the bandwidth usage be less than or equal to should
The link residue of link can bandwidth allocation；
Selecting module 330, for from the link that the bandwidth usage meets the preset condition, selecting a link
Transmit the data traffic.
Optionally, described device can also include:
Identification module, for identification number of links between the source interface and the purpose interface；
Computing module, if being only one for the link between the source interface and the purpose interface, by the chain
The link residue on road can bandwidth allocation subtract the bandwidth usage, band can be distributed by obtaining the updated link residue of the link
It is wide；If link between the source interface and the purpose interface be it is a plurality of, the source interface, which is gone out direction residue, to be distributed
Bandwidth subtracts the bandwidth usage, obtain updated source interface go out direction residue can bandwidth allocation, and the purpose is connect
Mouth enter direction residue can bandwidth allocation subtract the bandwidth usage, obtain updated purpose interface and enter direction residue can distributing
Bandwidth.
Optionally, the identification module can be also used for the either interface for transmitting data stream amount, identify that the interface goes out
Direction number of links corresponding with direction is entered；
Described device can also include:
Setup module, if going out direction for the interface only corresponds to a link, band can be distributed by the interface is arranged going out direction
Width is infinity, and according to the first preset configuration bandwidth, and determining that the interface goes out the links of direction respective links can bandwidth allocation；If
The interface goes out direction and corresponds to multilink, then according to the pre-set bandwidths ability of the interface, band can be distributed by the interface is arranged going out direction
Width, and be arranged the interface go out direction correspond to each link link can bandwidth allocation be infinity；If it is only right that the interface enters direction
Answer a link, then be arranged the interface enter direction can bandwidth allocation be infinity, and according to the second preset configuration bandwidth, determining should
The link that interface enters direction respective links can bandwidth allocation；If the interface, which enters direction, corresponds to multilink, according to the interface
Pre-set bandwidths ability, be arranged the interface enter direction can bandwidth allocation, and be arranged the interface enter direction correspond to the link of each link can
Bandwidth allocation is infinity.
Optionally, the identification module, specifically can be used for:
Judge link between the source interface and the purpose interface link can bandwidth allocation whether be infinitely great；
If infinity, it is determined that the link between the source interface and the purpose interface is a plurality of；
If not infinitely great, it is determined that the link between the source interface and the purpose interface is only one.
Optionally, described device can also include:
Module is kept, if being only one for the link between the source interface and the purpose interface, described in holding
Source interface go out direction residue can bandwidth allocation and the purpose interface enter direction residue can bandwidth allocation be infinitely great constant；If institute
State link between source interface and the purpose interface be it is a plurality of, then keep each link link residue can bandwidth allocation be infinite
It is big constant.
Using the present embodiment, the bandwidth usage of data traffic is obtained, for the source interface for being used for transmission the data traffic
Each link between purpose interface, obtain the data traffic source interface go out direction residue can bandwidth allocation, the data flow
The purpose interface of amount, which enters direction residue, the link residue of the link can divide between bandwidth allocation and source interface and purpose interface
With bandwidth, for each link, by judging whether bandwidth usage meets preset condition, the link that selection meets preset condition is passed
Defeated data traffic, wherein preset condition includes: that bandwidth usage is less than or equal to source interface and goes out direction residue and can distribute band
Wide, bandwidth usage be less than or equal to purpose interface enter direction residue can bandwidth allocation and bandwidth usage be less than or equal to
The link residue of the link can bandwidth allocation.By introducing interface bandwidth attribute, (source interface goes out direction can bandwidth allocation and purpose
Interface enters direction can bandwidth allocation), when carrying out data traffic scheduling, not only judge data traffic bandwidth usage whether
It can bandwidth allocation less than or equal to link residue, it is also necessary to judge whether to be less than or equal to source interface by bandwidth usage that go out direction surplus
It is remaining can bandwidth allocation and bandwidth usage whether be less than or equal to purpose interface enter direction residue can bandwidth allocation, above
When three Rule of judgment are all satisfied, the link of transmitting data stream amount can choose out.
For multi-multipoint networking, one source interface of all link sharings and a purpose interface, even if can not be accurate
Know each of the links link residue can bandwidth allocation, due to being configured with interface bandwidth attribute, no matter which link transmission number
According to flow, can all make source interface go out direction residue can bandwidth allocation and purpose interface enter direction residue can bandwidth allocation reduce,
From interface residue can bandwidth allocation may determine that whether therefore, can pass through with normal transmission data traffic between two interfaces
Interface bandwidth attribute is introduced, the interface band width resource for realizing multilink in multi-multipoint networking is shared, to realize
The data traffic of multi-multipoint networking is dispatched.
The embodiment of the invention also provides a kind of SDN controllers, as shown in figure 4, including processor 401 and machine readable depositing
Storage media 402, wherein the machine readable storage medium 402, which is stored with, can be held by the machine that the processor 401 executes
Row instruction, the machine-executable instruction is loaded and is executed by the processor 401, to realize provided by the embodiment of the present invention
Data traffic dispatching method.
Above-mentioned machine readable storage medium may include RAM (Random Access Memory, random access memory),
It also may include NVM (Non-volatile Memory, nonvolatile memory), for example, at least a magnetic disk storage.It is optional
, machine readable storage medium can also be that at least one is located remotely from the storage device of aforementioned processor.
Above-mentioned processor can be general processor, including CPU (Central Processing Unit, central processing
Device), NP (Network Processor, network processing unit) etc.；Can also be DSP (Digital Signal Processor,
Digital signal processor), ASIC (Application Specific Integrated Circuit, specific integrated circuit),
FPGA (Field-Programmable Gate Array, field programmable gate array) or other programmable logic device are divided
Vertical door or transistor logic, discrete hardware components.
It can be by way of wired connection or wireless connection between machine readable storage medium 402 and processor 401
Carry out data transmission, and wired communication interface or wireless communication interface can be passed through between SDN controller and other equipment
It is communicated.Shown in Fig. 4 is only the example carried out data transmission by bus, not as the restriction of specific connection type.
In the present embodiment, processor passes through the machine-executable instruction stored in read machine readable storage medium storing program for executing, and leads to
It crosses load and executes machine-executable instruction, can be realized: obtaining the bandwidth usage of data traffic, for being used for transmission the number
According to each link between the source interface and purpose interface of flow, the source interface for obtaining the data traffic, which goes out direction residue, to be distributed
Bandwidth, the data traffic purpose interface enter direction residue can the link between bandwidth allocation and source interface and purpose interface
Link residue can bandwidth allocation, for each link, by judging whether bandwidth usage meets preset condition, selection meets pre-
If the link transmission of the condition data traffic, wherein preset condition include: bandwidth usage be less than or equal to source interface go out direction
Residue can bandwidth allocation, bandwidth usage be less than or equal to purpose interface enter direction residue can bandwidth allocation and bandwidth occupancy
The link residue that amount is less than or equal to the link can bandwidth allocation.By introducing interface bandwidth attribute, (source interface, which goes out direction, to be divided
Entering direction with bandwidth and purpose interface can bandwidth allocation), when carrying out data traffic scheduling, not only judge the band of data traffic
Whether wide occupancy is less than or equal to link residue can bandwidth allocation, it is also necessary to judge whether bandwidth usage is less than or equal to source
Interface go out direction residue can bandwidth allocation and bandwidth usage whether be less than or equal to purpose interface and enter direction residue and can distribute
Bandwidth can choose out the link of transmitting data stream amount when three above Rule of judgment is all satisfied.
For multi-multipoint networking, one source interface of all link sharings and a purpose interface, even if can not be accurate
Know each of the links link residue can bandwidth allocation, due to being configured with interface bandwidth attribute, no matter which link transmission number
According to flow, can all make source interface go out direction residue can bandwidth allocation and purpose interface enter direction residue can bandwidth allocation reduce,
From interface residue can bandwidth allocation may determine that whether therefore, can pass through with normal transmission data traffic between two interfaces
Interface bandwidth attribute is introduced, the interface band width resource for realizing multilink in multi-multipoint networking is shared, to realize
The data traffic of multi-multipoint networking is dispatched.
In addition, the embodiment of the invention also provides a kind of machine readable storage medium, in the machine readable storage medium
It is stored with machine-executable instruction, the machine-executable instruction realizes that the present invention is implemented when being loaded and being executed by processor
Data traffic dispatching method provided by example.
In the present embodiment, machine readable storage medium is stored with executes data provided by the embodiment of the present invention at runtime
The machine-executable instruction of traffic scheduling method, therefore can be realized: the bandwidth usage of data traffic is obtained, for for passing
Each link between the source interface and purpose interface of the defeated data traffic, the source interface for obtaining the data traffic go out direction residue
Can bandwidth allocation, the data traffic purpose interface enter direction residue can be between bandwidth allocation and source interface and purpose interface
The link residue of the link can bandwidth allocation by judging whether bandwidth usage meets preset condition, select for each link
Meet the link transmission of the preset condition data traffic, wherein preset condition includes: that bandwidth usage is less than or equal to source interface
Out direction residue can bandwidth allocation, bandwidth usage be less than or equal to purpose interface enter direction residue can bandwidth allocation and band
The link residue that wide occupancy is less than or equal to the link can bandwidth allocation.By introducing interface bandwidth attribute, (source interface goes out side
To can bandwidth allocation and purpose interface enter direction can bandwidth allocation), when carrying out data traffic scheduling, not only judge data flow
Whether the bandwidth usage of amount is less than or equal to link residue can bandwidth allocation, it is also necessary to judge bandwidth usage whether be less than or
Equal to source interface go out direction residue can bandwidth allocation and bandwidth usage whether be less than or equal to purpose interface and enter direction residue
Can bandwidth allocation can choose out the link of transmitting data stream amount when three above Rule of judgment is all satisfied.
For multi-multipoint networking, one source interface of all link sharings and a purpose interface, even if can not be accurate
Know each of the links link residue can bandwidth allocation, due to being configured with interface bandwidth attribute, no matter which link transmission number
According to flow, can all make source interface go out direction residue can bandwidth allocation and purpose interface enter direction residue can bandwidth allocation reduce,
From interface residue can bandwidth allocation may determine that whether therefore, can pass through with normal transmission data traffic between two interfaces
Interface bandwidth attribute is introduced, the interface band width resource for realizing multilink in multi-multipoint networking is shared, to realize
The data traffic of multi-multipoint networking is dispatched.
For SDN controller and machine readable storage medium embodiment, the basic phase of method content that is related to due to it
It is similar to embodiment of the method above-mentioned, so being described relatively simple, the relevent part can refer to the partial explaination of embodiments of method.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
Each embodiment in this specification is all made of relevant mode and describes, same and similar portion between each embodiment
Dividing may refer to each other, and each embodiment focuses on the differences from other embodiments.Especially for device,
For SDN controller and machine readable storage medium embodiment, since it is substantially similar to the method embodiment, so the ratio of description
Relatively simple, the relevent part can refer to the partial explaination of embodiments of method.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the scope of the present invention.It is all
Any modification, equivalent replacement, improvement and so within the spirit and principles in the present invention, are all contained in protection scope of the present invention
It is interior.
Claims (10)
1. a kind of data traffic dispatching method, which is characterized in that the described method includes:
The bandwidth usage of data traffic is obtained, and is directed to and is used for transmission between the source interface of the data traffic and purpose interface
Each link, obtain the data traffic source interface go out direction residue can bandwidth allocation, the purpose of the data traffic connect
Mouth, which enters direction residue, the link residue of the link can distribute between bandwidth allocation and the source interface and the purpose interface
Bandwidth；
For each link, judge whether the bandwidth usage meets preset condition, the preset condition includes: that the bandwidth accounts for
Dosage be less than or equal to the source interface go out direction residue can bandwidth allocation, the bandwidth usage be less than or equal to the purpose
Interface enter direction residue can bandwidth allocation and the bandwidth usage be less than or equal to the link residue of the link and can distribute band
It is wide；
From the link that the bandwidth usage meets the preset condition, data traffic described in a link transmission is selected.
2. the method according to claim 1, wherein meeting the default item from the bandwidth usage described
In the corresponding link of part, after selecting data traffic described in a link transmission, the method also includes:
Identify the number of links between the source interface and the purpose interface；
If the link between the source interface and the purpose interface is only one, the link residue of the link can be distributed
Bandwidth subtracts the bandwidth usage, and obtaining the updated link residue of the link can bandwidth allocation；
If link between the source interface and the purpose interface be it is a plurality of, the source interface, which is gone out direction residue, to be distributed
Bandwidth subtracts the bandwidth usage, obtain updated source interface go out direction residue can bandwidth allocation, and the purpose is connect
Mouth enter direction residue can bandwidth allocation subtract the bandwidth usage, obtain updated purpose interface and enter direction residue can distributing
Bandwidth.
3. the method according to claim 1, wherein the method also includes:
For the either interface of transmitting data stream amount, identify that the interface goes out direction number of links corresponding with direction is entered；
If the interface go out direction only correspond to a link, be arranged the interface go out direction can bandwidth allocation for infinity, and according to
First preset configuration bandwidth, determining that the interface goes out the links of direction respective links can bandwidth allocation；
If the interface, which goes out direction, corresponds to multilink, according to the pre-set bandwidths ability of the interface, be arranged the interface go out direction can
Bandwidth allocation, and be arranged the interface go out direction correspond to each link link can bandwidth allocation be infinity；
If the interface enter direction only correspond to a link, be arranged the interface enter direction can bandwidth allocation for infinity, and according to
Second preset configuration bandwidth, determining that the interface enters the links of direction respective links can bandwidth allocation；
If the interface, which enters direction, corresponds to multilink, according to the pre-set bandwidths ability of the interface, be arranged the interface enter direction can
Bandwidth allocation, and be arranged the interface enter direction correspond to each link link can bandwidth allocation be infinity.
4. according to the method described in claim 2, it is characterized in that, between the identification source interface and the purpose interface
Number of links, comprising:
Judge link between the source interface and the purpose interface link can bandwidth allocation whether be infinitely great；
If infinity, it is determined that the link between the source interface and the purpose interface is a plurality of；
If not infinitely great, it is determined that the link between the source interface and the purpose interface is only one.
5. according to the described in any item methods of claim 2-4, which is characterized in that the method also includes:
If the link between the source interface and the purpose interface is only one, keeping the source interface to go out direction residue can
Bandwidth allocation and the purpose interface enter direction residue can bandwidth allocation be infinitely great constant；
If link between the source interface and the purpose interface be it is a plurality of, keep the link residue of each link that can distribute band
Width is infinitely great constant.
6. a kind of data traffic dispatching device, which is characterized in that described device includes:
Module is obtained, for obtaining the bandwidth usage of data traffic, and for the source interface for being used for transmission the data traffic
Each link between purpose interface, obtain the data traffic source interface go out direction residue can bandwidth allocation, the number
Entering direction residue according to the purpose interface of flow can the link between bandwidth allocation and the source interface and the purpose interface
Link residue can bandwidth allocation；
Judgment module judges whether the bandwidth usage meets preset condition, the preset condition packet for being directed to each link
Include: the bandwidth usage be less than or equal to the source interface go out direction residue can bandwidth allocation, the bandwidth usage be less than
Or equal to the purpose interface enter direction residue can bandwidth allocation and the bandwidth usage be less than or equal to the chain of the link
Road residue can bandwidth allocation；
Selecting module, for from the link that the bandwidth usage meets the preset condition, selecting a link transmission institute
State data traffic.
7. device according to claim 6, which is characterized in that described device further include:
Identification module, for identification number of links between the source interface and the purpose interface；
Computing module, if being only one for the link between the source interface and the purpose interface, by the link
Link residue can bandwidth allocation subtract the bandwidth usage, obtaining the updated link residue of the link can bandwidth allocation；
If link between the source interface and the purpose interface be it is a plurality of, the source interface is gone out direction residue can bandwidth allocation
Subtract the bandwidth usage, obtain updated source interface go out direction residue can bandwidth allocation, and the purpose interface is entered
Direction residue can bandwidth allocation subtract the bandwidth usage, obtain updated purpose interface and enter direction residue that band can be distributed
It is wide.
8. device according to claim 6, which is characterized in that
The identification module is also used to the either interface for transmitting data stream amount, identifies that the interface goes out direction and enters direction point
Not corresponding number of links；
Described device further include:
Setup module, if for the interface go out direction only correspond to a link, be arranged the interface go out direction can bandwidth allocation be
Infinity, and according to the first preset configuration bandwidth, determining that the interface goes out the links of direction respective links can bandwidth allocation；If this connects
Mouthful going out direction corresponds to multilink, then according to the pre-set bandwidths ability of the interface, be arranged the interface go out direction can bandwidth allocation, and
Be arranged the interface go out direction correspond to each link link can bandwidth allocation be infinity；If the interface, which enters direction, only corresponds to one
Link, then be arranged the interface enter direction can bandwidth allocation for infinity determine that the interface enters and according to the second preset configuration bandwidth
The link of direction respective links can bandwidth allocation；If the interface, which enters direction, corresponds to multilink, according to the default band of the interface
Wide ability, be arranged the interface enter direction can bandwidth allocation, and the interface is set and enters direction and correspond to the link of each link that band can be distributed
Width is infinity.
9. device according to claim 7, which is characterized in that the identification module is specifically used for:
Judge link between the source interface and the purpose interface link can bandwidth allocation whether be infinitely great；
If infinity, it is determined that the link between the source interface and the purpose interface is a plurality of；
If not infinitely great, it is determined that the link between the source interface and the purpose interface is only one.
10. according to the described in any item devices of claim 7-9, which is characterized in that described device further include:
Module is kept to keep the source to connect if being only one for the link between the source interface and the purpose interface
Mouthful go out direction residue can bandwidth allocation and the purpose interface enter direction residue can bandwidth allocation be infinitely great constant；If the source
Link between interface and the purpose interface be it is a plurality of, then keep each link link residue can bandwidth allocation be it is infinite very much not
Become.
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