CN106412043A - CDN flow guide method and device - Google Patents
CDN flow guide method and device Download PDFInfo
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- CN106412043A CN106412043A CN201610836267.3A CN201610836267A CN106412043A CN 106412043 A CN106412043 A CN 106412043A CN 201610836267 A CN201610836267 A CN 201610836267A CN 106412043 A CN106412043 A CN 106412043A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/60—Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/60—Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources
- H04L67/63—Routing a service request depending on the request content or context
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Abstract
The invention discloses a CDN flow guide method and device, wherein the method comprises the following steps: a CDN receives a bearer network deployment parameter of an operator bearer network, wherein the bearer network deployment parameter includes network resource deployment information of the operator bearer network; the CDN receives a user request; the CDN schedules the user request to a target CDN node according to the bearer network deployment parameter, wherein at least one CDN node is arranged in the CDN; and the at least one CDN node comprises the target CDN node. By means of the CDN flow guide method and device disclosed by the invention, the technical problem that scheduling has blindness due to the fact that the CDN schedules the user request according to experiences in the related technology can be solved.
Description
Technical field
The present invention relates to internet arena, in particular to a kind of CDN flow bootstrap technique and device.
Background technology
With the fast development of Internet technology, video, the big flow business such as live are also in explosive growth.Due to regarding
Frequently, straight multicast service is very big to the demand of bandwidth, and almost all of video and webcast website all can adopt CDN technology conduct
All can be through CDN and operator's bearer network in speeding scheme, therefore business transmitting procedure.The flow scheduling of CDN and operator
How to coordinate between the resource deployment of bearer network carry out flow guiding and optimize become video, the key of straight multicast service.But mesh
It is not intercommunication between the resource deployment of the scheduling of front CDN and operator's bearer network, CDN can't see the resource of operator's bearer network
Deployment scenario, after receiving user's request, CDN is dispatched to certain regional node serve generally according to experience user's request
On device (usual scheduling experience be foundation according to the price of actual range and operator's bearer network).In practical application scene
In it is possible to the Internet resources deployment scenario of this area is very poor, even if but CDN does not know or CDN knows, due to this area
Network tolling ratio is relatively low, and CDN considers still user's request to be dispatched to the very poor area of this Internet resources deployment for interests.Also
A kind of situation is had to be that certain regional Internet resources deployment scenario is very poor, operator increased fund input network condition and obtains later
To being obviously improved, but CDN does not know, when CDN dispatches still according to conventional scheduling mode.
Therefore, there is following drawback in above-mentioned dispatching method：The current Internet resources deployment scenario to operator's bearer network for the CDN
Know nothing, the scheduling of CDN can only rule of thumb be carried out, lead to scheduling can not cooperate with operator's bearer network, scheduling band
There is blindness.There is serious waste, and CDN service will be led in the Internet resources deployment that so will cause operator's bearer network
Second-rate, have a strong impact on Consumer's Experience.
Rule of thumb user's request is scheduling for CDN in correlation technique, leads to dispatch the problem with blindness,
At present effective solution is not yet proposed.
Content of the invention
Embodiments provide a kind of CDN flow bootstrap technique and device, at least to solve in correlation technique
CDN is rule of thumb scheduling to user's request, leads to dispatch the technical problem with blindness.
A kind of one side according to embodiments of the present invention, there is provided CDN flow bootstrap technique, including：CDN receives
The bearer network deployment parameters of operator's bearer network, wherein, bearer network deployment parameters include the Internet resources of operator's bearer network
Deployment information；CDN receive user is asked；And user's request is dispatched to target CDN section according to bearer network deployment parameters by CDN
Point, wherein, is provided with least one CDN node, at least one CDN node includes target CDN node in CDN.
Further, bearer network deployment parameters include at least one of：Network topology structure, machine room affiliated IP section, machine
Amount of bandwidth between room and backbone network, network load condition.
Further, user's request is dispatched to target CDN node according to bearer network deployment parameters and includes by CDN：According to
Lower formula calculates the selection coefficient of each CDN node at least one CDN node respectively, wherein, selects coefficient to be used for indicating
Each CDN node is selected as the probability of target CDN node：M=k1 A+k2 B+k3 C+k4 D+k5 F, wherein, A is used for marking
Know network topology structure, B is used for identifying machine room affiliated IP section, C for the amount of bandwidth identifying between machine room and backbone network, D is used for
Mark network load condition, F is used for identifying the parameter preset that user's request is dispatched to target CDN node by CDN, k1, k2, k3,
K4, k5 are pre-determined factor, and k1+k2+k3+k4+k5=1, and M is used for mark and selects coefficient；Select from least one CDN node
Select the maximum CDN node of coefficient as target CDN node；User's request is dispatched to target CDN node by CDN.
Further, before user's request is dispatched to target CDN node according to bearer network deployment parameters by CDN, method
Also include：Calculate the newly-increased coefficient of newly-increased CDN node at least one optional position according to below equation respectively, wherein, newly
Increase the probability that coefficient is used for instruction newly-increased CDN node at each optional position：N=k1 A+k2 B+k3 C+k4 D, wherein, A
For identifying network topology structure, B for identifying machine room affiliated IP section, C for identifying the amount of bandwidth between machine room and backbone network,
D is used for identifying network load condition, and k1, k2, k3, k4 are pre-determined factor, and k1+k2+k3+k4=1, and N is used for identifying newly-increased system
Number；According to the descending order of newly-increased coefficient, at least one optional position is ranked up, n optional position before selection, its
In, n is the integer more than or equal to 1；N CDN node is increased newly at front n optional position.
Further, the bearer network deployment parameters of CDN reception operator bearer network transmission include：CDN receives operator and holds
The bearer network deployment parameters of contained network transmission, wherein, operator's bearer network is disposed to CDN transmission bearer network according to prefixed time interval
Parameter, or, operator's bearer network is detecting when bearer network deployment parameters change to the bearer network after CDN transmission change
Deployment parameters.
Another aspect according to embodiments of the present invention, additionally provides a kind of CDN flow guide, including：First
Receiving unit, receives the bearer network deployment parameters of operator's bearer network, wherein, bearer network deployment parameters include fortune for CDN
The Internet resources deployment information of battalion's business's bearer network；Second receiving unit, for the request of CDN receive user；And scheduling unit, use
According to bearer network deployment parameters, user's request is dispatched to target CDN node in CDN, wherein, in CDN, is provided with least one
CDN node, at least one CDN node includes target CDN node.
Further, bearer network deployment parameters include at least one of：Network topology structure, machine room affiliated IP section, machine
Amount of bandwidth between room and backbone network, network load condition.
Further, scheduling unit includes：Computing module, for calculating at least one CDN section respectively according to below equation
The selection coefficient of each CDN node in point, wherein, selects coefficient to be used for indicating that each CDN node is selected as target CDN section
The probability of point：M=k1 A+k2 B+k3 C+k4 D+k5 F, wherein, A is used for identifying network topology structure, B is used for identifying machine room
Affiliated IP section, C are used for identifying the amount of bandwidth between machine room and backbone network, and D is used for identifying network load condition, and F is used for identifying CDN
User's request is dispatched to the parameter preset of target CDN node, k1, k2, k3, k4, k5 are pre-determined factor, and k1+k2+k3+k4+
K5=1, M are used for mark and select coefficient；Selecting module, for selecting the maximum CDN of coefficient from least one CDN node
Node is as target CDN node；User's request is dispatched to target CDN node for CDN by scheduler module.
Further, device also includes：Computing unit, for adjusting user's request according to bearer network deployment parameters in CDN
Spend to before target CDN node, calculate respectively according to below equation and increase the newly-increased of CDN node at least one optional position newly
Coefficient, wherein, newly-increased coefficient is used for the probability of instruction newly-increased CDN node at each optional position：N=k1 A+k2 B+k3 C
+ k4 D, wherein, A is used for identifying network topology structure, B is used for identifying machine room affiliated IP section, C is used for identifying machine room and backbone network
Between amount of bandwidth, D is used for identifying network load condition, and k1, k2, k3, k4 are pre-determined factor, and k1+k2+k3+k4=1, and N uses
In the newly-increased coefficient of mark；Sequencing unit, is carried out at least one optional position for the order descending according to newly-increased coefficient
Sequence, n optional position before selection, wherein, n is the integer more than or equal to 1；Newly-increased unit, at front n optional position
Newly-increased n CDN node.
Further, the first receiving unit includes：Receiver module, receives the carrying of operator's bearer network transmission for CDN
Net deployment parameters, wherein, operator's bearer network according to prefixed time interval to CDN transmission bearer network deployment parameters, or, operation
Business's bearer network is detecting when bearer network deployment parameters change to the bearer network deployment parameters after CDN transmission change.
In embodiments of the present invention, the bearer network deployment parameters of operator's bearer network, wherein, bearer network are received using CDN
Deployment parameters include the Internet resources deployment information of operator's bearer network；CDN receive user is asked；And CDN is according to carrying
User's request is dispatched to target CDN node by net deployment parameters, wherein, is provided with least one CDN node in CDN, and at least one
Individual CDN node includes the mode of target CDN node, will according to the bearer network deployment parameters of operator's bearer network transmission by CDN
User's request is dispatched to target CDN node, has reached the scheduling alloing CDN to user's request according to operator's bearer network
Internet resources deployment scenario carries out the purpose of flow guiding and optimization, it is achieved thereby that the service quality of lifting CDN, lifting operation
The technique effect of business's network utilization, and then solve CDN in correlation technique and rule of thumb user's request is scheduling, lead to
The technical problem with blindness for the scheduling.
Brief description
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, this
Bright schematic description and description is used for explaining the present invention, does not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the flow chart of CDN flow bootstrap technique according to embodiments of the present invention；
Fig. 2 is the schematic diagram of the scheduling process of a kind of optional user's request according to embodiments of the present invention；
Fig. 3 is the schematic diagram of the scheduling process of another kind of optional user's request according to embodiments of the present invention；And
Fig. 4 is the schematic diagram of CDN flow guide according to embodiments of the present invention.
Specific embodiment
In order that those skilled in the art more fully understand the present invention program, below in conjunction with the embodiment of the present invention
Accompanying drawing, is clearly and completely described to the technical scheme in the embodiment of the present invention it is clear that described embodiment is only
The embodiment of a present invention part, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained under the premise of not making creative work, all should belong to the model of present invention protection
Enclose.
It should be noted that term " first " in description and claims of this specification and above-mentioned accompanying drawing, "
Two " it is etc. for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that such use
Data can exchange in the appropriate case so that embodiments of the invention described herein can with except here diagram or
Order beyond those of description is implemented.Additionally, term " comprising " and " having " and their any deformation are it is intended that cover
Cover non-exclusive comprising, for example, contain series of steps or process, method, system, product or the equipment of unit are not necessarily limited to
Those steps clearly listed or unit, but may include clearly not listing or for these processes, method, product
Or the intrinsic other steps of equipment or unit.
First, the part noun occurring during the embodiment of the present invention is described or term are applied to following solution
Release：
Content distributing network (Content Delivery Network, referred to as CDN), its basic ideas is to keep away as far as possible
Open the bottleneck being possible to affect data transmission bauds and stability on internet and link, make content transmission faster, more stable.
By placing, in network, on existing Internet basic one layer of intelligent virtual network that node server is constituted everywhere,
CDN system can be in real time according to the connection of network traffics and each node, load state and during to the distance of user and response
Between etc. integrated information the request of user is re-directed on the nearest service node of user.Its objective is to make user can take nearby
Obtain required content, solve Internet congestion state, improve the response speed that user accesses website.
According to embodiments of the present invention, there is provided a kind of embodiment of the method for CDN dispatch request, need explanation
It is that the step illustrating in the flow process of accompanying drawing can execute in the computer system of such as one group of computer executable instructions,
And although showing logical order in flow charts, but in some cases, can be with different from order execution herein
Shown or described step.
The flow chart of Fig. 1 CDN flow bootstrap technique according to embodiments of the present invention, as shown in figure 1, the method includes
Following steps：
Step S102, CDN receives the bearer network deployment parameters of operator's bearer network, and wherein, bearer network deployment parameters comprise
There is the Internet resources deployment information of operator's bearer network；
Step S104, CDN receive user is asked；
Step S106, user's request is dispatched to target CDN node according to bearer network deployment parameters by CDN, wherein, in CDN
It is provided with least one CDN node, at least one CDN node includes target CDN node.
User's request is dispatched to target by CDN according to the bearer network deployment parameters of operator's bearer network by above-mentioned steps
CDN node, has reached the scheduling alloing CDN to user's request and has been entered according to the Internet resources deployment scenario of operator's bearer network
The guiding of row flow and the purpose optimizing, and then solve CDN in correlation technique and rule of thumb user's request is scheduling, lead to
The technical problem with blindness for the scheduling, it is achieved that the service quality of lifting CDN, lifts the technology effect of carrier network utilization rate
Really.
In the scheme that step S102 provides, operator's bearer network can open some standard interfaces and carry out data with CDN
Current bearer network deployment parameters can be transferred to CDN, to reach the network informing that CDN operator bearer network is current by communication
The purpose of the deployment scenario of resource, so make CDN may be referred to when being scheduling to user's request operator's bearer network work as
The deployment scenario of front Internet resources, realizes the service quality of lifting CDN, the effect of lifting carrier network utilization rate.
It should be noted that the embodiment of the present invention is not specifically limited to the information included by bearer network deployment parameters, can
Selection of land, bearer network deployment parameters can include but is not limited to：Network topology structure, machine room affiliated IP section, machine room and backbone network
Between amount of bandwidth and the parameter such as network load condition.Herein it should be noted that the above-mentioned parameter enumerated is the present invention
Alternative embodiment, the bearer network deployment parameters in the embodiment of the present invention can also include other specification, and no longer one at one stroke herein
Example explanation.
As a kind of optional embodiment, step S102CDN receives the bearer network deployment parameters of operator's bearer network transmission
May comprise steps of：
Step S1022, CDN receives the bearer network deployment parameters of operator's bearer network transmission, wherein, the embodiment of the present invention pair
The mode of operator's bearer network transmission bearer network deployment parameters is not specifically limited, and for example, operator's bearer network can be by connecing
Mouthful or with forms such as glue file, mail, notes to CDN transmission bearer network deployment parameters.Alternatively, operator's bearer network can
With according to prefixed time interval to CDN transmission bearer network deployment parameters, or, operator's bearer network can detect bearer network
To the bearer network deployment parameters after CDN transmission change when deployment parameters change.
It should be noted that operator's bearer network can be by not for different bearer network deployment parameters in this embodiment
Same form is transmitted to CDN.For the amount of bandwidth between network topology structure, machine room affiliated IP section, machine room and backbone network
Etc. parameter, operator's bearer network can be passed by http/https interface or with forms such as glue file, mail, notes
It is defeated by CDN.For the change more frequently parameter such as network load condition, operator's bearer network can be calibrated to CDN transmission is pre-
Know, to inform CDN current network load more than predetermined threshold, herein it should be noted that this embodiment is not done to predetermined mark
Concrete restriction, it can be numeral set in advance or character etc., and this embodiment is also not specifically limited to predetermined threshold, its
Can be set according to actual conditions or adjust, for example, operator's bearer network can pass through in the case that offered load is heavier
To CDN transmission specific identifier to inform CDN current network load situation.Also, it should be noted operator's bearer network passes to CDN
Transmission bearing net deployment parameters can transmit according to prefixed time interval, and prefixed time interval herein can be one month, three
Moon, six months etc., this prefixed time interval can be set according to the actual requirements or be adjusted, and be not specifically limited herein.
Whether operator's bearer network can be changed with real-time detection bearer network deployment parameters, and for example whether detection network load condition
Change, when bearer network deployment parameters is detected and changing, immediately by the bearer network deployment parameters transmission after change
To CDN.
After CDN receives the bearer network deployment parameters of operator's bearer network transmission, received bearer network can be preserved
Deployment parameters, and upon receipt of a user's request, based on received bearer network deployment parameters, user's request is adjusted
Degree, to realize being lifted the service quality of CDN, the effect of lifting carrier network utilization rate.
In the technical scheme that step S104 provides, CDN can be asked with receive user, herein it should be noted that user
Request can be to server request Internet resources, and server herein is simultaneously not specifically limited, and Internet resources herein are not yet
It is specifically limited, for example, can be to ask video file to video website for request, or, user's request can be to clear
Look at device requested webpage etc..Also, it should be noted the request of CDN receive user has real-time, CDN real-time detection whether there is to be used
Family is asked, and can immediately this user's request be scheduling when detecting the presence of user's request, to realize shortening user's request
Response time, improve user experience effect.
In the technical scheme that step S106 provides, in CDN, at least one CDN node can be included, at least one CDN saves
Fringe node and transit node can be divided in point, CDN can according to the bearer network deployment parameters of operator bearer network transmission with
And the user's request receiving is dispatched in a most suitable fringe node parameter such as distance, packet loss, then via
User's request is forwarded in the server that asked Internet resources are located transit node.Herein it should be noted that CDN root
User's request can be dispatched to target CDN node according to the parameter such as bearer network deployment parameters and distance, packet loss, this mesh
Mark CDN node can be above-mentioned most suitable fringe node, and target CDN node is included at least one CDN section in CDN
One of them in point.
It should be noted that user's request is dispatched to the concrete mistake of target CDN node by CDN according to bearer network deployment parameters
Journey can be described in detail by following alternative embodiment, specifically：
As a kind of optional embodiment, user's request is dispatched to mesh according to bearer network deployment parameters by step S106 CDN
Mark CDN node may comprise steps of：
Step S1061, CDN selects one as target CDN according to bearer network deployment parameters from least one CDN node
Node；
Step S1063, user's request is dispatched to target CDN node by CDN.
It should be noted that this alternative embodiment can save from least one of CDN CDN according to bearer network deployment parameters
Select a most suitable CDN node in point as target CDN node, and user's request is dispatched to this target CDN node, profit
With this target CDN node, user's request is forwarded in the server that asked Internet resources are located.
In this alternative embodiment, CDN can save from least one CDN according to bearer network deployment parameters and parameter preset
Target CDN node is selected, wherein, parameter preset can be the parameters such as packet loss, distance, the embodiment of the present invention is to default in point
Parameter is not specifically limited, and specifically may comprise steps of：
Step S1, calculates the selection coefficient of each CDN node at least one CDN node respectively according to below equation,
Wherein, coefficient is selected to can serve to indicate that each CDN node is selected as the probability of target CDN node：
M=k1 A+k2 B+k3 C+k4 D+k5 F
Wherein, A can be used for mark network topology structure, B can be used for mark machine room affiliated IP section, C can be used for marking
Know the amount of bandwidth between machine room and backbone network, D can be used for identifying network load condition, F can be used for mark CDN and will use
Family request is dispatched to the parameter preset of destination node server, wherein, parameter preset can include but is not limited to distance,
The parameters such as packet loss, k1, k2, k3, k4, k5 are pre-determined factor, and k1+k2+k3+k4+k5=1, and M can be used for mark and selects system
Number.
Step S3, selects the maximum CDN node of coefficient as target CDN node from least one CDN node.
In above-mentioned steps S1 to step S3, it is selected as the choosing of target CDN node by calculating each CDN node respectively
Select coefficient, the maximum CDN node of coefficient will be selected as target CDN node, and user's request is dispatched to this target CDN section
Point.Above-mentioned steps may be referred to received bearer network deployment parameters and parameter preset in selection target CDN node, this
Sample enables to can be with the deployment feelings of the current Internet resources of comprehensive operation business's bearer network when CDN is scheduling to user's request
Condition, and then reach the service quality of lifting CDN, the effect of lifting carrier network utilization rate.
As a kind of optional embodiment, user's request is dispatched to mesh according to bearer network deployment parameters by step S106 CDN
Before mark CDN node, this alternative embodiment can also include：
Step S105, CDN increases n CDN node newly according to bearer network deployment parameters, and wherein, n is the integer more than or equal to 1.
It should be noted that this alternative embodiment can be new at the correct position in CDN according to bearer network deployment parameters
Increase in CDN node, and the CDN node set that unborn CDN node is formed with newly-increased CDN node from by CDN and select
Select out target CDN node, user's request is dispatched to this target CDN node, using this target CDN node, user's request is forwarded
In the server being located to the Internet resources asked.This alternative embodiment can further be improved by above-mentioned steps S105
Determined by target CDN node the degree of accuracy, using this target CDN node forward user's request, can greatly lift CDN's
Service quality, lifts carrier network utilization rate.
In this alternative embodiment, CDN increases n CDN node newly according to bearer network deployment parameters, specifically can include following
Step：
Step S2, calculates the newly-increased coefficient of newly-increased CDN node at least one optional position respectively according to below equation,
Wherein, newly-increased coefficient is used for the probability of instruction newly-increased CDN node at each optional position：
N=k1 A+k2 B+k3 C+k4 D
Wherein, A is used for identifying network topology structure, B is used for identifying machine room affiliated IP section, C is used for identifying machine room and backbone
Amount of bandwidth between net, D is used for identifying network load condition, and k1, k2, k3, k4 are pre-determined factor, and k1+k2+k3+k4=1, N
For identifying newly-increased coefficient；
Step S4, is ranked up at least one optional position according to the descending order of newly-increased coefficient, n before selection
Optional position；
Step S6, increases n CDN node at front n optional position newly.
In above-mentioned steps S2 to step S6, by calculating newly-increased CDN node at least one optional position respectively
Newly-increased coefficient, and newly-increased coefficient is ranked up, choose the larger front n optional position of newly-increased coefficient, respectively can bit selecting at n
Put the newly-increased CDN node in place, then selection target in some CDN node unborn from these newly-increased CDN node and CDN
CDN node is used for dispatching user's request, it should be noted that target CDN node can be wherein in newly-increased CDN node
One of in unborn CDN node in individual or CDN.Above-mentioned steps can during newly-increased CDN node in CDN
More accurate with reference to received bearer network deployment parameters, so to enable to set up CDN node, and then make
CDN by user's request be dispatched to during target CDN node can with the deployment scenario of the current Internet resources of comprehensive operation business's bearer network,
And then reach the service quality lifting CDN, the effect of lifting carrier network utilization rate.
The present invention also provide can a kind of preferred embodiment, in order that preferably carrying out between CDN and operator's bearer network
Information exchanges, and provides more bearer network information, and the preferred embodiment proposes a kind of flow guiding and the method optimizing, permissible
Preferably both are cooperated collective effect, thus reaching lifting service quality and the purpose of user's impression.This is preferred
Embodiment includes following two embodiments, specifically：
Embodiment 1：Bearer network deployment parameters are first informed to CDN by operator, bearer network deployment parameters can include but not
It is limited to：Amount of bandwidth between network topology structure, machine room affiliated IP section, machine room and backbone network and network load condition etc..With
After request is initiated at family, request is forwarded in the global duty equalizing system of CDN by authoritative server, the global duty equilibrium of CDN
System is according to specific dispatching algorithm to one optimal edge node of user feedback.This dispatching algorithm except according to distance,
The bearer network deployment parameters being supplied to CDN according to operator are also needed to design, thus reaching outside the specific experience parameter such as packet loss
The lifting service quality of CDN and the purpose of carrier network utilization rate.
It should be noted that bearer network deployment parameters can notify to CDN in different forms, for example, it is possible to pass through
The form such as http/https interface or glue file, mail, note periodically or non-periodically be sent to CDN；Can also be in network
CDN is sent when deployment parameters change.In order to make it easy to understand, with Fig. 2 (node shown in Fig. 2 is node server) being
Example carries out following explanation：CDN under not knowing operator's bearer network deployment scenario rule of thumb by user scheduling to fringe node 1
On, but, user's request can be dispatched to using the dispatching algorithm after optimizing after knowing operator's bearer network deployment scenario
On the more excellent fringe node of effect 2, then via transit node 1, user's request is being forwarded to source station server, wherein, source station
Server can provide the user the Internet resources that it is asked, such as video file, webpage etc..
Embodiment 2：CDN, in order to preferably provide service, needs constantly to set up new node use in existing nodal basis
The user's request being increasingly incremented by satisfaction.Simultaneously in order to more closely coordinate with operator's bearer network, operator is greatly improved
Network utilization and the service quality of CDN, bearer network deployment parameters can first be informed to CDN by operator's bearer network, wherein, holds
Contained network deployment parameters can include but is not limited to：Bandwidth between network topology structure, machine room affiliated IP section, machine room and backbone network
Amount and network load condition etc..CDN can be according to these carryings after obtaining the bearer network deployment parameters that operator's bearer network transmits
Net deployment parameters complete the setting of newly-increased node on the premise of jointly meeting both sides' demand.After node is provided with, in user
When initiating request, CDN according to user's actual conditions, certain customers can be dispatched in newly-installed CDN node, enjoy in user
By while good service, lift operator's bearer network resource utilization.
It should be noted that bearer network deployment parameters can notify to CDN in different forms.Http/ can be passed through
The form such as https interface or glue file, mail, note periodically or non-periodically be sent to CDN；Can also send out in deployment parameters
CDN is sent during changing.In order to make it easy to understand, with Fig. 3, (node in Fig. 3 is node server, and wherein, fringe node 2 is
The node server newly established) as a example carry out following explanation：CDN is finding certain customers in long test process
Request be rule of thumb dispatched on fringe node 1 and 3, user experience worse and worse.Lift the use of this certain customers
Impression, CDN considers to set up new node, and option has a lot, how preferably to select new node, can pass through operator
Network design information, after now operator informs the bearer network deployment parameters needed for CDN to CDN, CDN just can be according to these
Bearer network deployment parameters have selected as Fig. 3 in numerous options in the newly-increased node of setting at fringe node 2 place.
In the present invention, current network condition is informed CDN, such as net by open out some standard interfaces by operator
Network topological structure, current network bandwidth resource, affiliated IP section and network load condition etc. so that CDN scheduling can according to work as
The actual conditions of front operator's bearer network deployment carry out flow guiding and optimization, and both cooperate and reach more preferable Service Quality
Amount.The present invention is capable of following technique effect：The service quality of lifting CDN, thus lift user's impression；The resource of operator
Deployment can more excellent combine with CDN faster, lifting operator bearer network resource utilization.
According to embodiments of the present invention, additionally provide a kind of embodiment of CDN flow guide, need explanation
It is that this CDN flow guide can be used for executing the CDN flow bootstrap technique in the embodiment of the present invention, this
CDN flow bootstrap technique in bright embodiment can execute in this CDN flow guide.
The schematic diagram of Fig. 4 CDN flow guide according to embodiments of the present invention, as shown in figure 4, this device is permissible
Including：
First receiving unit 42, receives the bearer network deployment parameters of operator's bearer network transmission for CDN, wherein, carries
Net deployment parameters are used for indicating the Internet resources deployment scenario of operator's bearer network；Second receiving unit 44, receives for CDN and uses
Family is asked；And scheduling unit 46, according to bearer network deployment parameters, user's request is dispatched to target CDN node for CDN, its
In, it is provided with least one CDN node in CDN, at least one CDN node includes target CDN node.
It should be noted that the first receiving unit 42 in this embodiment can be used for executing the step in the embodiment of the present application
Rapid S102, the second receiving unit 44 in this embodiment can be used for executing step S104 in the embodiment of the present application, this enforcement
Scheduling unit 46 in example can be used for executing step S106 in the embodiment of the present application.Above-mentioned module is real with corresponding step institute
Existing example is identical with application scenarios, but is not limited to above-described embodiment disclosure of that.
Alternatively, bearer network deployment parameters can include at least one of：Network topology structure, machine room affiliated IP section,
Amount of bandwidth between machine room and backbone network, network load condition.
Alternatively, scheduling unit 46 can include：Computing module, for calculating at least one respectively according to below equation
The selection coefficient of each CDN node in CDN node, wherein, selects coefficient to be used for indicating that each CDN node is selected as target
The probability of CDN node：M=k1 A+k2 B+k3 C+k4 D+k5 F, wherein, A is used for identifying network topology structure, B is used for marking
Know machine room affiliated IP section, C is used for identifying the amount of bandwidth between machine room and backbone network, D is used for identifying network load condition, and F is used for
User's request is dispatched to the parameter preset of target CDN node by mark CDN, and k1, k2, k3, k4, k5 are pre-determined factor, and k1+k2
+ k3+k4+k5=1, M are used for mark and select coefficient；Selecting module, for selecting coefficient from least one CDN node
Big CDN node is as target CDN node；User's request is dispatched to target CDN node for CDN by scheduler module.
Alternatively, this device can also include：Computing unit, can at least one for calculating respectively according to below equation
The bit selecting place of putting increases the newly-increased coefficient of CDN node newly, and wherein, newly-increased coefficient is used for instruction newly-increased CDN section at each optional position
The probability of point：N=k1 A+k2 B+k3 C+k4 D, wherein, A is used for identifying network topology structure, B is used for identifying belonging to machine room
IP section, C are used for identifying the amount of bandwidth between machine room and backbone network, and D is used for identifying network load condition, and k1, k2, k3, k4 are pre-
Determine coefficient, and k1+k2+k3+k4=1, N is used for identifying newly-increased coefficient；Sequencing unit, for descending according to newly-increased coefficient
Order is ranked up at least one optional position, n optional position before selection, and wherein, n is the integer more than or equal to 1；Newly-increased
Unit, for increasing n CDN node newly at front n optional position.
Alternatively, the first receiving unit 22 can include：Receiver module, receives operator's bearer network transmission for CDN
Bearer network deployment parameters, wherein, operator's bearer network according to prefixed time interval to CDN transmission bearer network deployment parameters, or,
Operator's bearer network is detecting when bearer network deployment parameters change to the bearer network deployment parameters after CDN transmission change.
The device of above-mentioned CDN dispatch request will be used according to the bearer network deployment parameters of operator's bearer network by CDN
Family request is dispatched to target CDN node, has reached the net according to operator's bearer network for the scheduling alloing CDN to user's request
Network resource deployment situation carries out the purpose of flow guiding and optimization, and then solves in correlation technique CDN rule of thumb to user
Request is scheduling, and leading to the technical problem dispatched with blindness it is achieved that lifting the service quality of CDN, lifting operator
The technique effect of network utilization.
The embodiments of the present invention are for illustration only, do not represent the quality of embodiment.
In the above embodiment of the present invention, the description to each embodiment all emphasizes particularly on different fields, and does not have in certain embodiment
The part describing in detail, may refer to the associated description of other embodiment.
It should be understood that disclosed technology contents in several embodiments provided herein, can pass through other
Mode is realized.Wherein, device embodiment described above is only the schematically division of for example described unit, Ke Yiwei
A kind of division of logic function, actual can have other dividing mode when realizing, for example multiple units or assembly can in conjunction with or
Person is desirably integrated into another system, or some features can be ignored, or does not execute.Another, shown or discussed is mutual
Between coupling or direct-coupling or communication connection can be by some interfaces, the INDIRECT COUPLING of unit or module or communication link
Connect, can be electrical or other form.
The described unit illustrating as separating component can be or may not be physically separate, show as unit
The part showing can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On unit.The purpose to realize this embodiment scheme for some or all of unit therein can be selected according to the actual needs.
In addition, can be integrated in a processing unit in each functional unit in each embodiment of the present invention it is also possible to
It is that unit is individually physically present it is also possible to two or more units are integrated in a unit.Above-mentioned integrated list
Unit both can be to be realized in the form of hardware, it would however also be possible to employ the form of SFU software functional unit is realized.
If described integrated unit is realized and as independent production marketing or use using in the form of SFU software functional unit
When, can be stored in a computer read/write memory medium.Based on such understanding, technical scheme is substantially
The part in other words prior art being contributed or all or part of this technical scheme can be in the form of software products
Embody, this computer software product is stored in a storage medium, including some instructions with so that a computer
Equipment (can be personal computer, server or network equipment etc.) execution each embodiment methods described of the present invention whole or
Part steps.And aforesaid storage medium includes：USB flash disk, read-only storage (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), portable hard drive, magnetic disc or CD etc. are various can be with store program codes
Medium.
The above is only the preferred embodiment of the present invention it is noted that ordinary skill people for the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of CDN flow bootstrap technique is it is characterised in that include：
CDN receives the bearer network deployment parameters of operator's bearer network, and wherein, described bearer network deployment parameters include described operation
The Internet resources deployment information of business's bearer network；
Described CDN receive user request；And
Described user's request is dispatched to target CDN node according to described bearer network deployment parameters by described CDN, wherein, described CDN
In be provided with least one CDN node, at least one CDN node described includes described target CDN node.
2. method according to claim 1 is it is characterised in that described bearer network deployment parameters include at least one of：
Amount of bandwidth between network topology structure, machine room affiliated IP section, machine room and backbone network, network load condition.
3. method according to claim 2 is it is characterised in that described CDN will be described according to described bearer network deployment parameters
User's request is dispatched to target CDN node and includes：
Calculate the selection coefficient of each CDN node at least one CDN node described, wherein, institute according to below equation respectively
State and select coefficient to be used for indicating the probability that each CDN node described is selected as described target CDN node：
M=k1A+k2B+k3C+k4D+k5F
Wherein, A is used for identifying described network topology structure, B is used for identifying described machine room affiliated IP section, C is used for identifying described machine
Amount of bandwidth between room and backbone network, D is used for identifying described network load condition, and F is used for identifying described CDN please by described user
Seek the parameter preset being dispatched to described target CDN node, k1, k2, k3, k4, k5 are pre-determined factor, and k1+k2+k3+k4+k5=
1, M is used for identifying described selection coefficient；
Select the maximum CDN node of coefficient as described target CDN node from least one CDN node described；
Described user's request is dispatched to described target CDN node by described CDN.
4. method according to claim 2 is it is characterised in that in described CDN according to described bearer network deployment parameters by institute
State before user's request is dispatched to target CDN node, methods described also includes：
Calculate the newly-increased coefficient increasing described CDN node at least one optional position newly, wherein, institute according to below equation respectively
State newly-increased coefficient for instruction increase the probability of described CDN node at least one optional position described newly：
N=k1A+k2B+k3C+k4D
Wherein, A is used for identifying described network topology structure, B is used for identifying described machine room affiliated IP section, C is used for identifying described machine
Amount of bandwidth between room and backbone network, D is used for identifying described network load condition, and k1, k2, k3, k4 are pre-determined factor, and k1+
K2+k3+k4=1, N are used for identifying described newly-increased coefficient；
According to the descending order of described newly-increased coefficient, at least one optional position described is ranked up, before selection, n is individual can
Bit selecting is put, and wherein, n is the integer more than or equal to 1；
N CDN node is increased newly at described front n optional position.
5. method according to claim 1 is it is characterised in that CDN receives the bearer network deployment of operator's bearer network transmission
Parameter includes：
Described CDN receives the described bearer network deployment parameters of described operator bearer network transmission, wherein, described operator bearer network
Transmit described bearer network deployment parameters according to prefixed time interval to described CDN, or, described operator bearer network is detecting
To the described bearer network deployment parameters after described CDN transmission change when described bearer network deployment parameters change.
6. a kind of CDN flow guide is it is characterised in that include：
First receiving unit, receives the bearer network deployment parameters of operator's bearer network for CDN, wherein, described bearer network deployment
Parameter includes the Internet resources deployment information of described operator bearer network；
Second receiving unit, for the request of described CDN receive user；And
Described user's request is dispatched to target CDN section for described CDN according to described bearer network deployment parameters by scheduling unit
Point, wherein, is provided with least one CDN node in described CDN, at least one CDN node described includes described target CDN section
Point.
7. device according to claim 6 is it is characterised in that described bearer network deployment parameters include at least one of：
Amount of bandwidth between network topology structure, machine room affiliated IP section, machine room and backbone network, network load condition.
8. device according to claim 7 is it is characterised in that described scheduling unit includes：
Computing module, for calculating the selection of each CDN node at least one CDN node described respectively according to below equation
Coefficient, wherein, described selection coefficient is used for indicating the probability that each CDN node described is selected as described target CDN node：
M=k1A+k2B+k3C+k4D+k5F
Wherein, A is used for identifying described network topology structure, B is used for identifying described machine room affiliated IP section, C is used for identifying described machine
Amount of bandwidth between room and backbone network, D is used for identifying described network load condition, and F is used for identifying described CDN please by described user
Seek the parameter preset being dispatched to described target CDN node, k1, k2, k3, k4, k5 are pre-determined factor, and k1+k2+k3+k4+k5=
1, M is used for identifying described selection coefficient；
Selecting module, for selecting the maximum CDN node of coefficient as described target from least one CDN node described
CDN node；
Described user's request is dispatched to described target CDN node for described CDN by scheduler module.
9. device according to claim 7 is it is characterised in that described device includes：
Computing unit, for being dispatched to target CDN section according to described bearer network deployment parameters by described user's request in described CDN
Before point, calculate the newly-increased coefficient increasing described CDN node at least one optional position newly respectively according to below equation, its
In, described newly-increased coefficient is used for the probability that instruction increases described CDN node at least one optional position described newly：
N=k1A+k2B+k3C+k4D
Wherein, A is used for identifying described network topology structure, B is used for identifying described machine room affiliated IP section, C is used for identifying described machine
Amount of bandwidth between room and backbone network, D is used for identifying described network load condition, and k1, k2, k3, k4 are pre-determined factor, and k1+
K2+k3+k4=1, N are used for identifying described newly-increased coefficient；
Sequencing unit, arranges at least one optional position described for the order descending according to described newly-increased coefficient
Sequence, n optional position before selection, wherein, n is the integer more than or equal to 1；
Newly-increased unit, for increasing n CDN node newly at described front n optional position.
10. device according to claim 6 is it is characterised in that described first receiving unit includes：
Receiver module, receives the described bearer network deployment parameters of described operator bearer network transmission, wherein, institute for described CDN
State operator's bearer network and transmit described bearer network deployment parameters according to prefixed time interval to described CDN, or, described operator
Bearer network is detecting when described bearer network deployment parameters change to the described bearer network deployment after described CDN transmission change
Parameter.
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