CN109391640A - Dynamic content accesses accelerated method, system, medium and computing device - Google Patents

Dynamic content accesses accelerated method, system, medium and computing device Download PDF

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Publication number
CN109391640A
CN109391640A CN201710655827.XA CN201710655827A CN109391640A CN 109391640 A CN109391640 A CN 109391640A CN 201710655827 A CN201710655827 A CN 201710655827A CN 109391640 A CN109391640 A CN 109391640A
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China
Prior art keywords
dynamic content
cdn
node
source
request
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姜文颖
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China Mobile Communications Group Co Ltd
China Mobile Communications Co Ltd
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China Mobile Communications Group Co Ltd
China Mobile Communications Co Ltd
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Priority to CN201710655827.XA priority Critical patent/CN109391640A/en
Publication of CN109391640A publication Critical patent/CN109391640A/en
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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
    • 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
    • H04L67/62—Establishing a time schedule for servicing the requests

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

The invention discloses a kind of dynamic content access accelerated method, system, medium and computing device, under the premise of not changing CDN network framework, additionally not disposing detection system, the access acceleration to dynamic content is realized by cooperate with for CDN and SDN.Dynamic content accesses accelerated method, comprising: when returning source request, is identified according to the dynamic content wherein carried for dynamic content transmission receiving the place CDN fringe node and determines the optimal source CDN fringe node；Optimal time source path is sent to SDN control node and establishes request, wherein carrying the dynamic content mark and the source CDN edge node identities and the place CDN edge node identities；It receives SDN control node and establishes the response message that request returns for optimal time source path, wherein carrying SDN control node is directed to the virtual process identifications that the dynamic content generates；The virtual process identifications, which are returned, as the dynamic content to the place CDN fringe node returns source address.

Description

Dynamic content accesses accelerated method, system, medium and computing device
Technical field
The present invention relates to technical field of the computer network more particularly to a kind of dynamic content to access accelerated method, system, Jie Matter and computing device.
Background technique
Background that this section is intended to provide an explanation of the embodiments of the present invention set forth in the claims or context.Herein Description recognizes it is the prior art not because not being included in this section.
CDN (Content Delivery Network, content distributing network) is the content distribution constructed on network Network passes through the functions moulds such as the load balancing, content distribution, scheduling of central platform by the Edge Server for being deployed in various regions Block, content needed for obtaining user nearby reduce network congestion, improve user's access response speed and hit rate.
Access for dynamic content, CDN network can not buffered in advance, can only Hui Yuan, i.e., to source Website server request Corresponding dynamic content.In the prior art, the foundation of the optimal time source path accelerated about dynamic content mainly has the following two kinds Processing method: one, CDN selects optimal time source path in application, Lai Shixian data are in user by building application layer routing Quick transmitting between terminal and source website.This scheme need to dispose the network of the whole network detection system, cost and real-time detection Expense is inevitable, and exploitativeness is poor.Two, the resources such as the calculating at the edge CDN, caching are included in bearer network SDN (Software Defined Network, software defined network) unified shader in, by SDN United Dispatching bottom CDN resource and network provide Time and the spatial match of content and bandwidth resources are realized in source.
But in the first above-mentioned processing method, the network of the whole network detection system, cost and real-time detection need to be disposed Expense is inevitable, and exploitativeness is poor；And in above-mentioned second method, need CDN carry out framework adjustment, and develop with Resources control interface between SDN Control, retrofit work amount is big, complex interfaces, and enforcement difficulty is big.
Summary of the invention
The embodiment of the present invention provides a kind of dynamic content method, system, medium and computing device that access accelerates, to Under the premise of not changing CDN network framework, keeping CDN and two net independence of SDN and be not necessarily to additional deployment detection system, realization pair The access of dynamic content accelerates.
The embodiment of the present invention provides a kind of dynamic content access accelerated method that the side CDN is implemented, comprising:
Content distributing network CDN place fringe node is being received for dynamic content transmission when returning source request, according to institute It states back the dynamic content carried in the request of source and identifies the determining optimal source CDN fringe node；And
Optimal time source path is sent to software defined network SDN control node and establishes request, and the optimal time source path is built The dynamic content mark and the source CDN edge node identities and the place CDN edge node identities are carried in vertical request；
It receives the SDN control node and establishes the response message that request returns, the sound for the optimal time source path It answers and carries the virtual process identifications that the SDN control node is directed to dynamic content generation in message；And
The virtual process identifications, which are returned, as the dynamic content to the place CDN fringe node returns source address.
Optionally, the response message is the SDN control node according to the source CDN edge node identities and described The place CDN edge node identities establish optimal time source path, and establish the virtual process identifications and dynamic content mark, institute It states and sends after the corresponding relationship between the source CDN edge node identities and the optimal time source path.
Optionally, the optimal time source path is established also to carry in request and be determined according to dynamic content mark Class of service information；And the optimal time source path is the SDN control node according to the class of service information and institute State the optimal time source path for meeting service level requirement that the source CDN edge node identities and the place CDN edge node identities are determined.
Optionally, the class of service information includes bandwidth requirement information and/or service quality QoS demand information.
The embodiment of the present invention provides a kind of dynamic content access accelerated method that the side SDN is implemented, comprising:
The optimal time source path that reception content distribution network CDN control node is sent establishes request, the optimal Hui Yuanlu Diameter establishes the CDN that the dynamic content mark that dynamic content to be visited is carried in request and the CDN control node are determined Source edge node identities and the place CDN edge node identities；
It is identified according to the dynamic content, generates virtual process identifications for dynamic content to be visited；And
The virtual process identifications are returned to as time source of the dynamic content to be visited to the CDN control node Location.
Optionally, the virtual process identifications are being returned to as the dynamic content to be visited to the CDN control node Return source address before, further includes:
According to the source CDN edge node identities and the place CDN edge node identities, the dynamic content to be visited is determined Optimal time source path；
Establish the virtual process identifications and dynamic content mark, the source CDN edge node identities and foundation most Corresponding relationship between excellent time source path.
Optionally, the optimal time source path is established in the dynamic also carried in request according to the dynamic content Hold the class of service information that mark is determined；And
According to the source CDN edge node identities and the place CDN edge node identities, the dynamic content to be visited is determined Optimal time source path, specifically includes:
According to the source CDN edge node identities and the place CDN edge node identities and the class of service information information Determine optimal time source path for meeting the dynamic content to be visited of service level requirement.
Optionally, the dynamic content that the side SDN provided in an embodiment of the present invention is implemented accesses accelerated method, can also include:
Flow table inquiry request that SDN forward node is sent, that purpose network identity is the virtual process identifications is received, In, the flow table inquiry request is that the SDN forward node receives the transmission of the place CDN fringe node, purpose network mark for the first time It is sent when knowing the data code flow for the virtual process identifications；
Corresponding relationship between the virtual process identifications and the source CDN edge node identities and optimal time source path of foundation In, search optimal time source path corresponding to the virtual process identifications carried in the flow table inquiry request；
Notifying the SDN forward node to modify the dynamic content to return the purpose network identity of source request is the source CDN Edge node identities indicate the SDN forward node according to the optimal time source path found to the source the CDN fringe node mark Know the corresponding source CDN fringe node and requests the dynamic content.
The embodiment of the present invention provides a kind of dynamic content access acceleration system, including content distributing network CDN control node With software defined network SDN control node, in which:
The CDN control node, for receiving content distributing network CDN place fringe node for dynamic content transmission When returning source request, identified according to the dynamic content carried in the request of described time source and determine the optimal source CDN fringe node；And to The SDN control node sends optimal time source path and establishes request, carries in the optimal time source path foundation request described Dynamic content mark and the source CDN edge node identities and the place CDN edge node identities；And receiving the SDN control After the virtual process identifications that node returns, Xiang Suoshu CDN place fringe node returns to the virtual process identifications as described dynamic State content returns source address；
The SDN control node generates virtual net for dynamic content to be visited for identifying according to the dynamic content Network mark；And the virtual process identifications are returned to as time source of the dynamic content to be visited to the CDN control node Location.
Optionally, the SDN control node is specifically used for according to the source CDN edge node identities and the place CDN edge section Point identification determines optimal time source path of the dynamic content to be visited；Establish the virtual process identifications, dynamic content mark Knowledge and the corresponding relationship between the source CDN edge node identities and optimal time source path of foundation.
Optionally, the optimal time source path is established in the dynamic also carried in request according to the dynamic content Hold the class of service information that mark is determined；And
The SDN control node is specifically used for according to the source CDN edge node identities and the place CDN edge node identities, The optimal time source path and class of service information information determination for determining the dynamic content to be visited meet the grade of service Optimal time source path of the dynamic content to be visited of demand.
Optionally, dynamic content access acceleration system provided in an embodiment of the present invention can also include SDN forward node, In:
The SDN forward node, for receiving the transmission of the place CDN fringe node, purpose network identity for the first time For the virtual process identifications data code flow when, Xiang Suoshu SDN control node send purpose network identity be the virtual net The flow table inquiry request of network mark；
The SDN control node, modifying the purpose network identity for the SDN forward node is the source CDN side Edge node identification indicates the SDN forward node according to the optimal time source path found to the source CDN edge node identities The corresponding source CDN fringe node requests the dynamic content.
The embodiment of the present invention mentions a kind of dynamic content access accelerator, comprising:
Determination unit, for receiving content distributing network CDN place fringe node for the Hui Yuan of dynamic content transmission When request, is identified according to the dynamic content carried in described time source request and determine the optimal source CDN fringe node；
Transmission unit establishes request for sending optimal time source path to software defined network SDN control node, it is described most Excellent time source path, which is established in request, carries the dynamic content mark and the source CDN edge node identities and the place CDN edge section Point identification；
Receiving unit establishes the sound that request returns for the optimal time source path for receiving the SDN control node Message is answered, the SDN control node is carried in the response message and is directed to the virtual process identifications that the dynamic content generates；
Response unit, for returning to the virtual process identifications as the dynamic content to the place CDN fringe node Return source address.
The response message is the SDN control node according to the source CDN edge node identities and the place CDN edge Node identification establishes optimal time source path, and establishes the virtual process identifications and dynamic content mark, the source CDN side It is sent after corresponding relationship between edge node identification and the optimal time source path.
Optionally, the optimal time source path is established also to carry in request and be determined according to dynamic content mark Class of service information；And the optimal time source path is the SDN control node according to the source CDN edge node identities and CDN What place edge node identities and the class of service information were determined.
Optionally, the class of service information includes bandwidth requirement information and/or service quality QoS demand information.
The embodiment of the present invention provides a kind of dynamic content access accelerator that the side SDN is implemented, comprising:
Receiving unit, the optimal time source path sent for reception content distribution network CDN control node establish request, institute It states optimal time source path and establishes the dynamic content mark and the CDN control node for carrying dynamic content to be visited in request The source the CDN edge node identities and the place CDN edge node identities determined；
Generation unit generates virtual process identifications for dynamic content to be visited for identifying according to the dynamic content； And
Response unit, for returning to the virtual process identifications as the dynamic to be visited to the CDN control node Content returns source address.
Optionally, the dynamic content that the side SDN provided in an embodiment of the present invention is implemented accesses accelerator, further includes:
Determination unit, for returning to the virtual process identifications conduct to the CDN control node in the response unit The dynamic content to be visited return source address before, according to the dynamic content mark, the source CDN edge node identities and The place CDN edge node identities determine optimal time source path of the dynamic content to be visited；
Unit is established, for establishing the virtual process identifications and dynamic content mark, the source CDN edge node identities And the corresponding relationship between the optimal time source path established.
Optionally, the optimal time source path is established in the dynamic also carried in request according to the dynamic content Hold the class of service information that mark is determined；And
The determination unit, be specifically used for according to institute the source CDN edge node identities and the place CDN edge node identities with And the class of service information determines optimal time source path for meeting the dynamic content to be visited of service level requirement.
Optionally, the dynamic content that the side SDN provided in an embodiment of the present invention is implemented accesses accelerator, further includes:
Receiving unit, for the stream receiving the transmission of SDN forward node, purpose network identity is the virtual process identifications Table inquiry request, wherein the flow table inquiry request is that the SDN forward node receives the transmission of the place CDN fringe node for the first time , the data code flow that purpose network identity is the virtual process identifications when send；
Notification unit, for notifying the SDN forward node to modify the purpose network mark that the dynamic content returns source request Knowing is the source CDN edge node identities, indicates the SDN forward node according to the optimal time source path found to described The edge node identities corresponding source CDN fringe node in the source CDN requests the dynamic content.
The embodiment of the present invention provides a kind of computing device, including at least one processing unit and at least one storage list Member, wherein the storage unit is stored with computer program, when described program is executed by the processing unit, so that described Processing unit executes step described in any of the above-described method.
The embodiment of the present invention provides a kind of computer-readable medium, is stored with the computer journey that can be executed by computing device Sequence, when described program is run on the computing device, so that the computing device executes step described in any of the above-described method.
Dynamic content access accelerated method, system, medium and computing device provided in an embodiment of the present invention, by CDN Control node and SDN control node increase communication interface, when time source that CDN control node receives dynamic content is requested, lead to Communication interface request SDN control node is crossed to require and determine for the bandwidth demand of dynamic content, QoS service level The source CDN/place fringe node dynamically set up optimal time source path, in the above process, without being adjusted to CDN network framework It is whole, without deployment detection network, reduce the expense of CDN network resource.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention can be by written explanation Specifically noted structure is achieved and obtained in book, claims and attached drawing.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes a part of the invention, this hair Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is in the embodiment of the present invention, and dynamic content accesses the system architecture schematic diagram that accelerated method is implemented；
Fig. 2 is that the implementing procedure for the dynamic content access accelerated method that CDN control node is implemented shows in the embodiment of the present invention It is intended to；
Fig. 3 a is the implementing procedure for the dynamic content access accelerated method that SDN control node is implemented in the embodiment of the present invention Schematic diagram；
Fig. 3 b is in the embodiment of the present invention, and the dynamic content access of CDN control node and SDN control node coordinated implementation adds The implementation process diagram of fast method；
Fig. 4 is the interaction flow schematic diagram between each network node in the embodiment of the present invention；
Fig. 5 is in the embodiment of the present invention, and dynamic content accesses the structural schematic diagram of acceleration system；
Fig. 6 is the structural schematic diagram for the dynamic content access accelerator that the side CDN is implemented in the embodiment of the present invention；
Fig. 7 is the structural schematic diagram for the dynamic content access accelerator that the side SDN is implemented in the embodiment of the present invention；
Fig. 8 is the structural schematic diagram of computing device in the embodiment of the present invention.
Specific embodiment
In order to realize not small to CDN, SDN network structural adjustment, holding CDN and two net independence of SDN, implementation amount Under the premise of establish dynamic content access accelerate optimal time source path, reduce the expense of Internet resources, the embodiment of the present invention mentions A kind of dynamic content that CDN is cooperateed with SDN has been supplied to access accelerated method, device, system, medium and computing device.
Below in conjunction with Figure of description, preferred embodiment of the present invention will be described, it should be understood that described herein Preferred embodiment only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention, and in the absence of conflict, this hair The feature in embodiment and embodiment in bright can be combined with each other.
As shown in Figure 1, it accesses accelerated method reality for the dynamic content that CDN provided in an embodiment of the present invention is cooperateed with SDN The system architecture schematic diagram applied.Including the place CDN fringe node 11, CDN GSLB (global load balancing) node 12, the source CDN edge Node 13, source station 14 and SDN control (SDN Controller) node 15 and SDN forward node 16.
When it is implemented, user clicks access dynamic content in Website page using user equipment, website is returned to user Dynamic content URL (uniform resource locator), user equipment utilize the URL of website return to Local DNS (name server) Domain name analysis request is sent, Local DNS initiates domain name analysis request to CDN GSLB, and CDN GSLB is returned to Local DNS The network identity of optimal edge service node, the i.e. place CDN edge node network mark.Local DNS returns to CDN to user equipment Place edge node network mark, user equipment are identified according to the place the CDN edge node network received to the corresponding place CDN edge Node sends dynamic content access request, and it is dynamic content that the place CDN flange node judges, which go out content to be visited, looks into CDN GSLB That askes dynamic content to be visited returns source address, wherein carries the dynamic content mark and the place CDN fringe node mark of dynamic content Know, CDN GSLB determines optimal time source node, the i.e. source CDN edge section according to dynamic content mark and the place CDN edge node identities Point.In the embodiment of the present invention, in order to establish optimal time source path, CDN GSLB further sends to SDN control node optimal It returns source path and establishes request, wherein carry dynamic content mark and the place CDN edge node identities and the source CDN fringe node Mark.SDN control node generates virtual process identifications for dynamic content mark, and according to the place CDN fringe node and the source CDN Fringe node establishes optimal time source path, and saves the corresponding pass between virtual process identifications and optimal go back to source path of foundation System.And the virtual process identifications generated for dynamic content mark are returned to CDN GSLB, CDN GSLB is to the place CDN edge section Point returns to the virtual process identifications received and is used as back source address.The place CDN fringe node is according to the virtual process identifications received It sends back source to SDN forward node to request, data packet is forwarded to the SDN forward node of its upstream, and SDN forward node is for the first time When receiving back source request, flow table inquiry request is sent to SDN control node, to determine the forwarding road of the data flow received Diameter, SDN control node according to return source request in carry source address, destination address (i.e. SDN control node be directed to the dynamic content Identify the virtual process identifications generated), judge that it returns source stream for dynamic content mark, really returning source address is CDN Source edge address IP.SDN control node notifies that SDN forward node modification destination IP is CDN source IP address, and according to the void of foundation Quasi- network identity and optimal time source path corresponding relationship, instruction SDN forward node are counted according to optimal time source path of foundation It is forwarded according to packet.Destination IP is changed to the IP of CDN fringe node by SDN forward node, and the optimal time source path established according to SDN to The source CDN fringe node sends back source request.After the source CDN fringe node receives back source request, identified according to dynamic content to source It stands after obtaining corresponding dynamic content, the place CDN fringe node is sent to by the optimal time source path that SDN network is established.The place CDN Fringe node returns to the dynamic content data received to user equipment and so far completes the acquisition of dynamic content.
In the embodiment of the present invention, real-time interface is established between CDN GSLB and bearer network SDN control node, by CDN Optimal edge service node is determined for the user side of dynamic content and source station side, and accelerates the service etc. of signing according to dynamic content Grade proposes the application of bottom link circuit resource to SDN controller, establishes optimal time source path by SDN control node dynamic for it, and lead to Being associated with of crossing that distribution virtual process identifications and dynamic content identify achievees the purpose that the Dynamic Recognition content code stream, to realize needle Acceleration service to the different grades of service of Different Dynamic content.
When it is implemented, the communication interface message definition between CDN GSLB and SDN control node is as follows:
Optimal time source path establishes request message, may include at least one following field in the request message: message id, Dynamic content mark, the source CDN edge node network mark, the place CDN edge node network mark, link bandwidth, QoS (Service Quality Amount) demand, reserved field.
Optimal time source path establishes request response, may include at least one following field in the response message: disappearing Cease ID, dynamic content mark, virtual process identifications, reserved field and error code.
As shown in Fig. 2, it is CDN control node (for example, can be the CDN GSLB in Fig. 1) in the embodiment of the present invention The implementation process diagram for implementing dynamic content access accelerated method, may comprise steps of:
S21, receive the place CDN fringe node for dynamic content send return source request when, asked according to described time source It asks the dynamic content of middle carrying to identify and determines the optimal source CDN fringe node.
In this step, user clicks access dynamic content in Website page using user equipment, and Website server is to user It returns dynamic content URL (uniform resource locator), user equipment utilizes the URL of website return to Local DNS (domain name service Device) domain name analysis request is sent, Local DNS initiates domain name analysis request to CDN GSLB, and CDN GSLB is returned to Local DNS The network identity of optimal edge service node is returned, i.e. the place CDN edge node network identifies.Local DNS is returned to user equipment The place CDN edge node network mark, user equipment are identified according to the place the CDN edge node network received to the corresponding place CDN Fringe node sends dynamic content access request, and it is dynamic content that the place CDN flange node judges, which go out content to be visited, to CDN GSLB inquires time source address of dynamic content to be visited.
S22, optimal time source path foundation request is sent to SDN control node, the optimal time source path is established in request Carry the dynamic content mark and the source CDN edge node identities and the place CDN edge node identities.
Optionally, the optimal time source path is established also to carry in request and be determined according to dynamic content mark Class of service information, for example, bandwidth requirement information and/or service quality QoS demand information.
S23, the response message that SDN control node establishes request return for optimal time source path is received, the response disappears The SDN control node is carried in breath is directed to the virtual process identifications that the dynamic content generates.
Wherein, the response message is the SDN control node according to the source CDN edge node identities and the CDN Place edge node identities establish optimal time source path, and establish the virtual process identifications with the source CDN edge node identities with And sent after the corresponding relationship between the optimal time source path.
When it is implemented, being identified if the optimal time source path is established in request also to carry according to the dynamic content The class of service information determined, then the SDN control node is also used to according to the source CDN edge node identities and the place CDN Edge node identities and the class of service information determine optimal time source path for meeting service level requirement, and are foundation Optimal time source path distributes Tunnel ID (link identification).
S24, time source address of the virtual process identifications as the dynamic content is returned to the place CDN fringe node.
It should be noted that network identity involved in the embodiment of the present invention can be, but not limited to as network ip address, only If the mark of network node can be identified uniquely in a network.
As shown in Figure 3a, implement dynamic content provided in an embodiment of the present invention for SDN control node and access accelerated method Implementation process diagram, may comprise steps of:
S31, the optimal time source path foundation request that CDN control node is sent is received.
When it is implemented, user clicks access dynamic content in Website page using user equipment, website is returned to user Dynamic content URL (uniform resource locator), user equipment utilize the URL of website return to Local DNS (name server) Domain name analysis request is sent, Local DNS initiates domain name analysis request to CDN GSLB, and CDN GSLB is returned to Local DNS The network identity of optimal edge service node, the i.e. place CDN edge node network mark.Local DNS returns to CDN to user equipment Place edge node network mark, user equipment are identified according to the place the CDN edge node network received to the corresponding place CDN edge Node sends dynamic content access request, and it is dynamic content that the place CDN flange node judges, which go out content to be visited, looks into CDN GSLB That askes dynamic content to be visited returns source address, wherein carries the dynamic content mark and the place CDN fringe node mark of dynamic content Know, CDN GSLB determines optimal time source node, the i.e. source CDN edge section according to dynamic content mark and the place CDN edge node identities Point.In the embodiment of the present invention, in order to establish optimal time source path, CDN GSLB further sends to SDN control node optimal It returns source path and establishes request, wherein the optimal time source path is established in the dynamic for carrying dynamic content to be visited in request Hold the source CDN edge node identities and the place CDN edge node identities that mark and the CDN control node are determined.
S32, it is identified according to the dynamic content, generates virtual process identifications for dynamic content to be visited.
S33, Xiang Suoshu CDN control node return to Hui Yuan of the virtual process identifications as the dynamic content to be visited Address.
In this step, SDN control node returns to optimal Hui Yuan after generating virtual process identifications, to CDN control node The response message of path request message can carry in the response message of return and generate void for dynamic content to be visited Quasi- network identity returns source address as the dynamic content to be visited.
Preferably, the virtual process identifications are being returned to as the dynamic content to be visited to the CDN control node Return source address before, can with the following steps are included:
Step 1: being determined described to be visited dynamic according to the source CDN edge node identities and the place CDN edge node identities Optimal time source path of state content；
Step 2: establishing the virtual process identifications and dynamic content mark, the source CDN edge node identities and foundation Corresponding relationship between optimal time source path.
Optionally, the optimal time source path is established in the dynamic that can also be carried in request according to the dynamic content Hold the class of service information that mark is determined, is based on this, in step 1, SDN control node can also be according to the source CDN side Edge node identification and the place CDN edge node identities and determining optimal time for meeting service class requirements of the class of service information Source path.
In specific implementation, SDN control node implement dynamic content access accelerated method can with the following steps are included:
It is inquired Step 1: receiving flow table that SDN forward node is sent, that purpose network identity is the virtual process identifications Request.
Wherein, the flow table inquiry request be the SDN forward node receive for the first time the place CDN fringe node transmission, What purpose network identity was sent when being the data code flow of the virtual process identifications.
In this step, after the virtual process identifications for receiving the return of CDN control node are used as back source address, the place CDN Fringe node initiates back source request by purpose IP address of the virtual process identifications, and the SDN that data packet is forwarded to its upstream turns Node is sent out, SDN forward node is needed when receiving the data packet that purpose IP address is the virtual process identifications for the first time to SDN The forward-path of control node inquiry corresponding data code stream.
Step 2: notifying the SDN forward node to modify the dynamic content to return the purpose network identity of source request is institute The source CDN edge node identities are stated, indicate the SDN forward node according to the optimal time source path found to the source CDN side The corresponding source the CDN fringe node of edge node identification requests the dynamic content.
Specifically, SDN forward node is to SDN control node transmitted traffic inquiry request, and SDN control node is according in flow table Source address, purpose IP address checking storehouse learn the stream be for dynamic content return source stream, according to the virtual process identifications of foundation With the corresponding relationship between the source CDN edge node identities and optimal time source path, SDN forward node is notified to modify the code stream Destination IP is revised as the source CDN edge node identities, and fills Tunnel id field, indicates SDN forward node according to foundation most Excellent time source path requests the dynamic content to the corresponding source the CDN fringe node of the source CDN edge node identities.SDN forwarding The IP address of the code stream received is revised as the IP address of the source CDN fringe node by node, is filled Tunnel field (optional), is pressed Source is initiated go back to the source CDN fringe node according to the optimal time source path that SDN control node is established to request.The source CDN fringe node is connecing After receiving back source request, dynamic content is obtained from source station, CDN is sent to by the optimal time source path that SDN control node is established The dynamic content received is sent to user equipment by the place CDN fringe node by place fringe node.
As shown in Figure 3b, the implementation process diagram that accelerated method is accessed for the dynamic content that CDN is cooperateed with SDN, can With the following steps are included:
S301, CDN control node receive the place CDN fringe node and return source request for what dynamic content was sent.
When it is implemented, user using user equipment Website page click access dynamic content, Website server to Family returns to dynamic content URL (uniform resource locator), and to Local DNS, (domain name takes the URL that user equipment utilizes website to return It is engaged in device) domain name analysis request is sent, Local DNS initiates domain name analysis request to CDN GSLB, and CDN GSLB is to Local DNS The network identity of optimal edge service node is returned to, i.e. the place CDN edge node network identifies.Local DNS is returned to user equipment The place CDN edge node network mark is returned, user equipment is identified according to the place the CDN edge node network received to corresponding CDN Place fringe node sends dynamic content access request, and it is dynamic content that the place CDN flange node judges, which go out content to be visited, to CDN GSLB inquires time source address of dynamic content to be visited.
S302, CDN control node identify the determining optimal source CDN edge according to the dynamic content carried in the request of source that returns Node.
S303, CDN control node send optimal time source path to SDN control node and establish request, the optimal Hui Yuanlu Diameter, which is established in request, carries the dynamic content mark and the source CDN edge node identities and the place CDN edge node identities.
Optionally, the optimal time source path is established also to carry in request and be determined according to dynamic content mark Class of service information, for example, bandwidth requirement information and/or service quality QoS demand information.
S304, SDN control node are established the dynamic content carried in request according to optimal time source path and are identified, for wait visit It asks that dynamic content generates virtual process identifications, and the source the CDN fringe node mark carried in request is established according to optimal time source path Knowledge and the place CDN edge node identities, determine optimal time source path of the dynamic content to be visited.
S305, SDN control node establish the virtual process identifications generated and dynamic content mark, the source CDN fringe node mark Corresponding relationship between knowledge and the optimal time source path established.
It should be noted that can also carry if the optimal time source path is established in request according in the dynamic The dynamic content of appearance identifies the class of service information determined, then SDN control node can be according to the source the CDN fringe node mark Know optimal time source path for determining with the place CDN edge node identities and the class of service information and meeting service class requirements.
S306, SDN control node return to the virtual process identifications as in the dynamic to be visited to CDN control node That holds returns source address.
S307, CDN control node return to the virtual process identifications as the dynamic content to the place CDN fringe node Return source address.
The place S308, CDN fringe node initiates back source request by the SDN forward node in SDN network.
In this step, the place CDN fringe node is asked in the IP address source of initiating back as a purpose with the virtual process identifications received It asks.
If SDN forward node receives the data packet that purpose IP address is the virtual process identifications for the first time, execute Otherwise step S309 and step S310 executes step S311.
S309, SDN forward node send flow table inquiry request to SDN control node.
Wherein, the purpose IP address carried in flow table is the virtual process identifications.
S310, SDN control node determine the true purpose IP address of flow table.
In this step, SDN control node searches its corresponding source CDN edge according to the virtual process identifications carried in flow table Node identification and optimal time source path.
S311, SDN control node notify that the purpose IP address of SDN forward node modification data packet is the source CDN fringe node IP address, instruction SDN forward node according to foundation optimal time source path carry out data packet forwarding.
Optionally, SDN control node can also fill Tunnel id field.
The purpose IP address that S312, SDN forward node modify back source request is the IP address of the source CDN fringe node, and presses Source request is forwarded back to the source CDN fringe node according to optimal time source path of SDN control node instruction.
Optionally, SDN forward node can also fill Tunnel id field.
The source S313, CDN fringe node obtains dynamic content from source station, is sent out by the optimal time source path that SDN network is established Give the place CDN fringe node.
In this step, returning after the request of source for SDN forward node transmission is received, the source CDN fringe node is obtained from source station Dynamic content is sent to place fringe node by the optimal time source path that SDN network is established.
The place S314, CDN fringe node returns to the dynamic content received to user equipment.
Embodiment for a better understanding of the present invention, below in conjunction with the interaction flow between each network node to of the invention real The specific implementation process for applying example is illustrated, as shown in figure 4, may comprise steps of:
S41, user equipment receive the URL for the dynamic content that Website server returns.
When it is implemented, clicking access dynamic content, portal site server will be to during user browses portal website User equipment returns to the URL of dynamic content to be visited.
S42, user equipment send domain name analysis request to Local DNS.
Wherein, the URL of dynamic content to be visited is carried in the domain name mapping request of transmission.
S43, Local DNS are requested to CDN GSLB forwarding domain name mapping.
S44, CDN GSLB determine that the IP address of optimal edge service node, the i.e. IP address of the place CDN fringe node are concurrent Give Local DNS.
S45, Local DNS return to domain name parsing result to user equipment.
In this step, Local DNS returns to domain name parsing result, the i.e. optimal place that CDN GSLB is determined to user equipment The IP address of fringe node.
S46, user equipment are sent out according to the IP address of the place the CDN fringe node received to the corresponding place CDN fringe node Send dynamic content access request.
In this step, with the IP address of the place CDN fringe node, IP is sent user equipment to the place CDN fringe node as a purpose Dynamic content access request.
The place S47, CDN fringe node judges that content to be visited is after the dynamic content access request received State content then inquires back source address to CDN GSLB.
In this step, the dynamic of dynamic content to be visited can be carried in the inquiry request that the place CDN fringe node is sent State content identification and the place CDN edge node identities.
S48, CDN GSLB determine the optimal source CDN fringe node.
In this step, CDN GSLB is identified according to dynamic content and the place CDN edge node identities, determines optimal Hui Yuanjie Point, the i.e. source CDN fringe node.
S49, CDN GSLB send optimal time source path to SDN control node and establish request.
In this step, the dynamic content that carries to be visited dynamic content is established in request in optimal time source path of transmission Mark, the source CDN edge node identities and the place CDN edge node identities.Optionally, request is established in optimal time source path of transmission In can also carry dynamic content and identify corresponding class of service information, for example, QoS demand information and/or link bandwidth need Seek information etc..
S410, SDN control node are that the dynamic content mark that optimal time source path is established in request generates virtual ip address, It establishes optimal time source path for meeting service class requirements and establishes virtual process identifications and the source CDN edge node identities and most Corresponding relationship between excellent time source path.
In this step, SDN control node is after optimal time source path for receiving CDN GSLB transmission establishes request The dynamic content mark wherein carried generates virtual process identifications, and according to the place the CDN fringe node and the source CDN side wherein carried Edge node generates optimal time source path, and the virtual process identifications for establishing generation are identified with the dynamic content and established most Corresponding relationship between excellent time source path.Particularly, if carrying class of service information in optimal time source path request, SDN control node need to generate the optimal Hui Yuanlu for meeting service level requirement according to the place CDN fringe node and the source CDN fringe node Diameter.
Optionally, SDN control node can also establish request distribution Tunnel ID for optimal time source path.
S411, SDN control node are to CDN GSLB returning response message.
Wherein, the virtual process identifications that SDN controller generates are carried in the response message of return be used as back source address.It can Selection of land can also carry the information such as dynamic content mark in the response message of return.
S412, CDN GSLB return to the virtual process identifications received to the place CDN fringe node and are used as back source address.
The place S413, CDN fringe node initiates back source request by the SDN forward node in SDN network.
With the virtual process identifications that receive, IP address initiates back source request to the place CDN fringe node as a purpose.
When it is implemented, if SDN forward node receives the number that purpose IP address is the virtual process identifications for the first time According to packet, S414 and step S415 are thened follow the steps, otherwise, executes step S417.
S414, SDN forward node send flow table inquiry request to SDN control node.
Wherein, the purpose IP address carried in flow table is the virtual process identifications.
S415, SDN control node determine the true purpose IP address of flow table.
In this step, SDN control node searches its corresponding source CDN edge according to the virtual process identifications carried in flow table Node identification and optimal time source path.
S416, SDN control node notify that the purpose IP address of SDN forward node modification data packet is the source CDN fringe node IP address, instruction SDN forward node according to foundation optimal time source path carry out data packet forwarding.
Optionally, SDN control node can also fill Tunnel id field.
The purpose IP address that S417, SDN forward node modify back source request is the IP address of the source CDN fringe node, and presses Source request is forwarded back to the source CDN fringe node according to optimal time source path of SDN control node instruction.
Optionally, SDN forward node can also fill Tunnel id field.
The source S418, CDN fringe node obtains dynamic content from source station, is sent out by the optimal time source path that SDN network is established Give the place CDN fringe node.
Returning after the request of source for SDN forward node transmission is received, the source CDN fringe node obtains dynamic content from source station, Place fringe node is sent to by the optimal time source path that SDN network is established.
The place S419, CDN fringe node returns to the dynamic content received to user equipment.
So far, dynamic content obtains process and terminates.
Dynamic content access accelerated method, device, system, medium and computing device provided in an embodiment of the present invention, pass through Increase communication interface in CDN control node and SDN control node, when the source of returning that CDN control node receives dynamic content is requested When, by the communication interface request SDN control node for dynamic content bandwidth demand and QoS service level require, with And the source the CDN/place fringe node determined dynamically sets up optimal time source path, in the above process, without to CDN network framework It is adjusted, without deployment detection network, reduces the expense of Internet resources, implementation amount is small.
Based on the same inventive concept, a kind of dynamic content access acceleration system and dynamic is additionally provided in the embodiment of the present invention State access to content accelerator, the principle solved the problems, such as due to above system and device and above-mentioned dynamic content access acceleration side Method is similar, therefore the implementation of above system may refer to the implementation of method, and overlaps will not be repeated.
As shown in figure 5, its structural schematic diagram that acceleration system is accessed for dynamic content provided in an embodiment of the present invention, including CDN control node 51 and software defined network SDN control node 52, in which:
The CDN control node 51, for receiving content distributing network CDN place fringe node for dynamic content hair When time source sent is requested, is identified according to the dynamic content carried in described time source request and determine the optimal source CDN fringe node；And Optimal time source path is sent to the SDN control node and establishes request, and the optimal time source path is established in request and carried State dynamic content mark and the source CDN edge node identities and the place CDN edge node identities；Receiving the SDN control section After the virtual process identifications that point returns, Xiang Suoshu CDN place fringe node returns to the virtual process identifications as the dynamic Content returns source address；
The SDN control node 52 generates virtual for being identified according to the dynamic content for dynamic content to be visited Network identity；And Hui Yuan of the virtual process identifications as the dynamic content to be visited is returned to the CDN control node Address.
Optionally, the SDN control node 52 is specifically used for according to the source CDN edge node identities and the place CDN edge Node identification determines optimal time source path of the dynamic content to be visited；Establish the virtual process identifications and the source CDN edge Corresponding relationship between node identification and optimal time source path of foundation.
Optionally, the optimal time source path establishes the dynamic content mark also carried in request according to the dynamic content Know the class of service information determined；And
The SDN control node 52 is specifically used for according to the source CDN edge node identities and the place CDN fringe node mark Know, determines that optimal time source path of the dynamic content to be visited and class of service information determination meet grade of service need Optimal time source path of the dynamic content to be visited asked.
Optionally, dynamic content access acceleration system provided in an embodiment of the present invention can also include SDN forward node, In:
The SDN forward node, for receiving the transmission of the place CDN fringe node, purpose network identity for the first time For the virtual process identifications data code flow when, Xiang Suoshu SDN control node send purpose network identity be the virtual net The flow table inquiry request of network mark；
The SDN control node, modifying the purpose network identity for the SDN forward node is the source CDN side Edge node identification indicates the SDN forward node according to the optimal time source path found to the source CDN edge node identities The corresponding source CDN fringe node requests the dynamic content.
As shown in fig. 6, its structure for accessing accelerator for the dynamic content that the side CDN provided in an embodiment of the present invention is implemented Schematic diagram may include:
Determination unit 61, for receiving content distributing network CDN place fringe node returning for dynamic content transmission When source is requested, is identified according to the dynamic content carried in described time source request and determine the optimal source CDN fringe node；
Transmission unit 62 establishes request for sending optimal time source path to software defined network SDN control node, described Optimal time source path, which is established in request, carries the dynamic content mark and the source CDN edge node identities and the place CDN edge Node identification；
Receiving unit 63 establishes what request returned for the optimal time source path for receiving the SDN control node Response message carries the SDN control node in the response message and is directed to the virtual network mark that the dynamic content generates Know；
Response unit 64, for returning to the virtual process identifications as in the dynamic to the place CDN fringe node That holds returns source address.
Wherein, the response message is the SDN control node according to the source CDN edge node identities and the CDN Place edge node identities establish optimal time source path, and establish the virtual process identifications and the source CDN edge node identities And sent after the corresponding relationship between the optimal time source path.
Optionally, the optimal time source path is established also to carry in request and be determined according to dynamic content mark Class of service information；And the optimal time source path is the SDN control node according to the source CDN edge node identities and CDN What place edge node identities and the class of service information information were determined.
Optionally, the class of service information includes bandwidth requirement information and/or service quality QoS demand information.
As shown in fig. 7, its structure for accessing accelerator for the dynamic content that the side SDN provided in an embodiment of the present invention is implemented Schematic diagram, comprising:
Receiving unit 71, the optimal time source path sent for reception content distribution network CDN control node establish request, The optimal time source path establishes the dynamic content mark that dynamic content to be visited is carried in request and CDN control section The source the CDN edge node identities and the place CDN edge node identities that point is determined；
Generation unit 72 generates virtual network mark for dynamic content to be visited for identifying according to the dynamic content Know；
Response unit 73, for returning to the virtual process identifications as described to be visited dynamic to the CDN control node State content returns source address.
Optionally, the dynamic content that the side SDN provided in an embodiment of the present invention is implemented accesses accelerator, can also include:
Determination unit, for returning to the virtual process identifications conduct to the CDN control node in the response unit The dynamic content to be visited return source address before, according to the dynamic content mark, the source CDN edge node identities and The place CDN edge node identities determine optimal time source path of the dynamic content to be visited；
Unit is established, for establishing optimal time of the virtual process identifications and the source CDN edge node identities and foundation Corresponding relationship between source path.
Optionally, the optimal time source path is established in the dynamic also carried in request according to the dynamic content Hold the class of service information that mark is determined；And
The determination unit, be specifically used for according to institute the source CDN edge node identities and the place CDN edge node identities with And the class of service information information determines optimal time source path for meeting the dynamic content to be visited of service level requirement.
Optionally, the dynamic content that the side SDN provided in an embodiment of the present invention is implemented accesses accelerator, can also include:
Receiving unit, for the stream receiving the transmission of SDN forward node, purpose network identity is the virtual process identifications Table inquiry request, wherein the flow table inquiry request is that the SDN forward node receives the transmission of the place CDN fringe node for the first time , the data code flow that purpose network identity is the virtual process identifications when send；
Notification unit, for notifying the SDN forward node to modify the purpose network mark that the dynamic content returns source request Knowing is the source CDN edge node identities, indicates the SDN forward node according to the optimal time source path found to described The edge node identities corresponding source CDN fringe node in the source CDN requests the dynamic content.
For convenience of description, above each section is divided by function describes respectively for each module (or unit).Certainly, exist Implement to realize the function of each module (or unit) in same or multiple softwares or hardware when the present invention.
After describing the method and apparatus of exemplary embodiment of the invention, next, introducing according to the present invention The computing device of another exemplary embodiment.
Person of ordinary skill in the field it is understood that various aspects of the invention can be implemented as system, method or Program product.Therefore, various aspects of the invention can be embodied in the following forms, it may be assumed that complete hardware embodiment, complete The embodiment combined in terms of full Software Implementation (including firmware, microcode etc.) or hardware and software, can unite here Referred to as circuit, " module " or " system ".
In some possible embodiments, it is single can to include at least at least one processing for computing device according to the present invention Member and at least one storage unit.Wherein, the storage unit is stored with program code, when said program code is described When processing unit executes, so that the processing unit executes the exemplary implementations various according to the present invention of this specification foregoing description The step in method that the access of mode dynamic content accelerates.For example, the processing unit can execute step as shown in Figure 2 S21, receiving the place CDN fringe node for dynamic content send when going back to source and requesting, carried according in the request of described time source Dynamic content identify and determine the optimal source CDN fringe node, step S22, send optimal time source path to SDN control node and establish Request, the optimal time source path establish in request carry the dynamic content mark and the source CDN edge node identities and Step S23, the place CDN edge node identities receive the response that SDN control node establishes request return for optimal time source path and disappear It ceases, the SDN control node is carried in the response message and is directed to the virtual process identifications that the dynamic content generates；And Step S24, the virtual process identifications are returned to as the dynamic content to the place CDN fringe node and returns source address；Or it holds Row step S31 as shown in fig. 3a, it receives the optimal time source path that CDN control node is sent and establishes request, step S32, root It is identified according to the dynamic content, generates virtual process identifications for dynamic content to be visited, step S33, Xiang Suoshu CDN control section Point returns to the virtual process identifications as the dynamic content to be visited and returns source address.
The computing device 80 of this embodiment according to the present invention is described referring to Fig. 8.The calculating dress that Fig. 8 is shown Setting 80 is only an example, should not function to the embodiment of the present invention and use scope bring any restrictions.
As shown in figure 8, computing device 80 is showed in the form of universal computing device.The component of computing device 80 may include But be not limited to: at least one above-mentioned processing unit 81, at least one above-mentioned storage unit 82, the different system components of connection (including Storage unit 82 and processing unit 81) bus 83.
Bus 83 indicates one of a few class bus structures or a variety of, including memory bus or Memory Controller, Peripheral bus, processor or the local bus using any bus structures in a variety of bus structures.
Storage unit 82 may include the readable medium of form of volatile memory, such as random access memory (RAM) 821 and/or cache memory 822, it can further include read-only memory (ROM) 823.
Storage unit 82 can also include program/utility 825 with one group of (at least one) program module 824, Such program module 824 includes but is not limited to: operating system, one or more application program, other program modules and It may include the realization of network environment in program data, each of these examples or certain combination.
Computing device 80 can also be communicated with one or more external equipments 84 (such as keyboard, sensing equipment etc.), may be used also Enabled a user to one or more and calculate 80 equipment communications interact, and/or with enable the calculating 80 and one or A number of other any equipment (such as router, modem etc.) communications for calculating equipment and being communicated.This communication can To be carried out by input/output (I/O) interface 85.Also, calculating 80 can also be by network adapter 86 and one or more A network (such as local area network (LAN), wide area network (WAN) and/or public network, such as internet) communication.As shown, network Adapter 86 is communicated by bus 83 with other modules for calculating 80.It will be appreciated that though being not shown in the figure, can combine Calculate 80 use other hardware and/or software modules, including but not limited to: microcode, device driver, redundant processing unit, External disk drive array, RAID system, tape drive and data backup storage system etc..
In some possible embodiments, the various aspects of dynamic content access accelerated method provided by the invention may be used also In the form of being embodied as a kind of program product comprising program code, when described program product is run on a computing device, The exemplary realities various according to the present invention that said program code is used to that the computer equipment to be made to execute this specification foregoing description The step in the method for the dynamic content access acceleration of mode is applied, for example, the computer equipment can execute as shown in Figure 2 Step S21, receiving the place CDN fringe node for dynamic content send when going back to source and requesting, requested according to described time source The dynamic content of middle carrying, which identifies, determines the optimal source CDN fringe node, step S22, sends optimal Hui Yuanlu to SDN control node Diameter establishes request, and the optimal time source path, which is established in request, carries the dynamic content mark and the source CDN fringe node Step S23, mark and the place CDN edge node identities receive SDN control node for optimal time source path and establish what request returned Response message carries the SDN control node in the response message and is directed to the virtual network mark that the dynamic content generates Know；And step S24, the virtual process identifications are returned to the place CDN fringe node as the dynamic content return source address； Or step S31 as shown in fig. 3a is executed, the optimal time source path that CDN control node is sent is received and establishes request, step S32, it is identified according to the dynamic content, generates virtual process identifications, step S33, Xiang Suoshu CDN for dynamic content to be visited Control node returns to the virtual process identifications as the dynamic content to be visited and returns source address.
Described program product can be using any combination of one or more readable mediums.Readable medium can be readable letter Number medium or readable storage medium storing program for executing.Readable storage medium storing program for executing for example may be-but not limited to-electricity, magnetic, optical, electromagnetic, red The system of outside line or semiconductor, device or device, or any above combination.The more specific example of readable storage medium storing program for executing (non exhaustive list) includes: the electrical connection with one or more conducting wires, portable disc, hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read only memory (EPROM or flash memory), optical fiber, portable compact disc Read memory (CD-ROM), light storage device, magnetic memory device or above-mentioned any appropriate combination.
The program product of embodiments of the present invention accelerated for dynamic content access can use portable compact disc Read-only memory (CD-ROM) and including program code, and can run on the computing device.However, program product of the invention Without being limited thereto, in this document, it includes or the tangible medium of storage program that the program can be with that readable storage medium storing program for executing, which can be any, It is commanded execution system, device or device use or in connection.
Readable signal medium may include in a base band or as the data-signal that carrier wave a part is propagated, wherein carrying Readable program code.The data-signal of this propagation can take various forms, including --- but being not limited to --- electromagnetism letter Number, optical signal or above-mentioned any appropriate combination.Readable signal medium can also be other than readable storage medium storing program for executing it is any can Read medium, the readable medium can send, propagate or transmit for by instruction execution system, device or device use or Program in connection.
The program code for including on readable medium can transmit with any suitable medium, including --- but being not limited to --- Wirelessly, wired, optical cable, RF etc. or above-mentioned any appropriate combination.
The program for executing operation of the present invention can be write with any combination of one or more programming languages Code, described program design language include object oriented program language-Java, C++ etc., further include conventional Procedural programming language-such as " C " language or similar programming language.Program code can be fully in user It executes on computing device, partly execute on a user device, being executed as an independent software package, partially in user's calculating Part executes on remote computing device or executes on remote computing device or server completely on device.It is being related to far In the situation of journey computing device, remote computing device can pass through the network of any kind --- including local area network (LAN) or extensively Domain net (WAN)-is connected to user's computing device, or, it may be connected to external computing device (such as utilize Internet service Provider is connected by internet).
It should be noted that although being referred to several unit or sub-units of device in the above detailed description, this stroke It point is only exemplary not enforceable.In fact, embodiment according to the present invention, it is above-described two or more The feature and function of unit can embody in a unit.Conversely, the feature and function of an above-described unit can It is to be embodied by multiple units with further division.
In addition, although describing the operation of the method for the present invention in the accompanying drawings with particular order, this do not require that or Hint must execute these operations in this particular order, or have to carry out shown in whole operation be just able to achieve it is desired As a result.Additionally or alternatively, it is convenient to omit multiple steps are merged into a step and executed by certain steps, and/or by one Step is decomposed into execution of multiple steps.
It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more, The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces The form of product.
The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates, Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one The step of function of being specified in a box or multiple boxes.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic Property concept, then additional changes and modifications can be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies Within, then the present invention is also intended to include these modifications and variations.

Claims (22)

1. a kind of CDN dynamic content accesses accelerated method characterized by comprising
Content distributing network CDN place fringe node is being received for dynamic content transmission when returning source request, according to described time The dynamic content carried in the request of source, which identifies, determines the optimal source CDN fringe node；And
Optimal time source path is sent to software defined network SDN control node and establishes request, and the optimal time source path foundation is asked The dynamic content mark and the source CDN edge node identities and the place CDN edge node identities are carried in asking；
It receives the SDN control node and establishes the response message that request returns for the optimal time source path, the response disappears The SDN control node is carried in breath is directed to the virtual process identifications that the dynamic content generates；And
The virtual process identifications, which are returned, as the dynamic content to the place CDN fringe node returns source address.
2. the method as described in claim 1, which is characterized in that the response message is the SDN control node according to The source CDN edge node identities and the place CDN edge node identities establish optimal time source path, and establish the virtual network mark It is sent out after knowing the corresponding relationship between dynamic content mark, the source CDN edge node identities and the optimal time source path It send.
3. method according to claim 2, which is characterized in that the optimal time source path is established in request and also carry basis The dynamic content identifies the class of service information determined；And the optimal time source path is the SDN control node root The satisfaction clothes determined according to the class of service information and the source CDN edge node identities and the place CDN edge node identities Optimal time source path of level requirements of being engaged in.
4. method as claimed in claim 3, which is characterized in that the class of service information include bandwidth requirement information and/or Service quality QoS demand information.
5. a kind of CDN dynamic content accesses accelerated method characterized by comprising
The optimal time source path that reception content distribution network CDN control node is sent establishes request, and the optimal time source path is built The source the CDN side that the dynamic content mark and the CDN control node that dynamic content to be visited is carried in vertical request are determined Edge node identification and the place CDN edge node identities；
It is identified according to the dynamic content, generates virtual process identifications for dynamic content to be visited；And
The virtual process identifications, which are returned, as the dynamic content to be visited to the CDN control node returns source address.
6. method as claimed in claim 5, which is characterized in that returning to the virtual network mark to the CDN control node Know returning before source address as the dynamic content to be visited, further includes:
According to the source CDN edge node identities and the place CDN edge node identities, the optimal of the dynamic content to be visited is determined Return source path；
Establish the virtual identifying and dynamic content mark, the source CDN edge node identities and foundation optimal time source path it Between corresponding relationship.
7. method as claimed in claim 6, which is characterized in that the optimal time source path is established in request and also carry basis The dynamic content of the dynamic content identifies the class of service information determined；And according to the source CDN edge node identities With the place CDN edge node identities, determines optimal time source path of the dynamic content to be visited, specifically includes:
It is determined and is met according to the source CDN edge node identities and the place CDN edge node identities and the class of service information Optimal time source path of the dynamic content to be visited of service level requirement.
8. the method for claim 7, which is characterized in that further include:
Receive flow table inquiry request that SDN forward node is sent, that purpose network identity is the virtual process identifications, wherein The flow table inquiry request be the SDN forward node receive for the first time the place CDN fringe node transmission, purpose network identity be It is sent when the data code flow of the virtual process identifications；
In corresponding relationship between the virtual process identifications and the source CDN edge node identities and optimal time source path of foundation, Search optimal time source path corresponding to the virtual process identifications carried in the flow table inquiry request；
Notifying the SDN forward node to modify the dynamic content to return the purpose network identity of source request is the source CDN edge Node identification indicates the SDN forward node according to the optimal time source path found to the source CDN edge node identities pair The source the CDN fringe node answered requests the dynamic content.
9. a kind of dynamic content accesses acceleration system, which is characterized in that fixed including content distributing network CDN control node and software Adopted network SDN control node, in which:
The CDN control node, for receiving content distributing network CDN place fringe node returning for dynamic content transmission When source is requested, is identified according to the dynamic content carried in described time source request and determine the optimal source CDN fringe node；And to described SDN control node sends optimal time source path and establishes request, and the optimal time source path is established in request and carry the dynamic Content identification and the source CDN edge node identities and the place CDN edge node identities；It is returned receiving the SDN control node Virtual process identifications after, the place Xiang Suoshu CDN fringe node returns to the virtual process identifications as the dynamic content Return source address；
The SDN control node generates virtual network mark for dynamic content to be visited for identifying according to the dynamic content Know；And the virtual process identifications are returned as the dynamic content to be visited to the CDN control node and return source address.
10. system as claimed in claim 9, which is characterized in that
The SDN control node is specifically used for being determined according to the source CDN edge node identities and the place CDN edge node identities Optimal time source path of the dynamic content to be visited；Establish the virtual process identifications and dynamic content mark, the source CDN edge Corresponding relationship between node identification and optimal time source path of foundation.
11. system as claimed in claim 9, which is characterized in that the optimal time source path is established in request and also carry root The class of service information determined is identified according to the dynamic content of the dynamic content；And the SDN control node, it is specifically used for According to the source CDN edge node identities and the place CDN edge node identities, the optimal Hui Yuan of the dynamic content to be visited is determined Path and the class of service information information determine the optimal Hui Yuanlu for meeting the dynamic content to be visited of service level requirement Diameter.
12. system as claimed in claim 11, which is characterized in that further include SDN forward node, in which:
The SDN forward node, for being institute receiving the place CDN fringe node is sent, purpose network identity for the first time When stating the data code flow of virtual process identifications, it is the virtual network mark that Xiang Suoshu SDN control node, which sends purpose network identity, The flow table inquiry request of knowledge；
The SDN control node, modifying the purpose network identity for the SDN forward node is the source CDN edge section Point identification indicates that the SDN forward node is corresponding to the source CDN edge node identities according to the optimal time source path found The source CDN fringe node request the dynamic content.
13. a kind of dynamic content accesses accelerator characterized by comprising
Determination unit, for receiving content distributing network CDN place fringe node for time source request of dynamic content transmission When, it is identified according to the dynamic content carried in described time source request and determines the optimal source CDN fringe node；
Transmission unit is requested, described optimal time for sending optimal time source path foundation to software defined network SDN control node Source path, which is established in request, carries the dynamic content mark and the source CDN edge node identities and the place CDN fringe node mark Know；
Receiving unit disappears for receiving the response that the SDN control node establishes request return for the optimal time source path It ceases, the SDN control node is carried in the response message and is directed to the virtual process identifications that the dynamic content generates；
Response unit, for returning to the virtual process identifications returning as the dynamic content to the place CDN fringe node Source address.
14. device as claimed in claim 13, which is characterized in that the response message is the SDN control node according to institute It states the source CDN edge node identities and the place CDN edge node identities establishes optimal time source path, and establish the virtual network After corresponding relationship between mark and dynamic content mark, the source CDN edge node identities and the optimal time source path It sends.
15. device as claimed in claim 13, which is characterized in that the optimal time source path is established in request and also carry root The class of service information determined is identified according to the dynamic content；And the optimal time source path is the SDN control node It is determined according to the source CDN edge node identities and the place CDN edge node identities and the class of service information.
16. device as claimed in claim 15, which is characterized in that the class of service information include bandwidth requirement information and/ Or service quality QoS demand information.
17. a kind of dynamic content accesses accelerator characterized by comprising
Receiving unit, for reception content distribution network CDN control node send optimal time source path establish request, it is described most Excellent time source path establishes the dynamic content mark that dynamic content to be visited is carried in request and the CDN control node determines The source CDN edge node identities and the place CDN edge node identities out；
Generation unit generates virtual process identifications for dynamic content to be visited for identifying according to the dynamic content；
Response unit, for returning to the virtual process identifications as the dynamic content to be visited to the CDN control node Return source address.
18. device as claimed in claim 17, which is characterized in that further include:
Determination unit, for being returned described in the virtual process identifications conduct in the response unit to the CDN control node Dynamic content to be visited returns before source address, according to dynamic content mark, the source CDN edge node identities and CDN Place edge node identities determine optimal time source path of the dynamic content to be visited；
Unit is established, for establishing the virtual process identifications and dynamic content mark, the source CDN edge node identities and foundation Optimal time source path between corresponding relationship.
19. device as claimed in claim 18, which is characterized in that the optimal time source path is established in request and also carry root The class of service information determined is identified according to the dynamic content of the dynamic content；And
The determination unit is specifically used for according to the source CDN edge node identities and the place CDN edge node identities and described Class of service information determines optimal time source path for meeting the dynamic content to be visited of service level requirement.
20. device as claimed in claim 19, which is characterized in that further include:
Receiving unit is looked into for the flow table receiving the transmission of SDN forward node, purpose network identity is the virtual process identifications Ask request, wherein the flow table inquiry request is that the SDN forward node receives the transmission of the place CDN fringe node, mesh for the first time Network identity send when being the data code flow of the virtual process identifications；
Notification unit, the purpose network identity for notifying the SDN forward node to modify the request of the dynamic content time source are The source CDN edge node identities indicate the SDN forward node according to the optimal time source path found to the source CDN The corresponding source the CDN fringe node of edge node identities requests the dynamic content.
21. a kind of computing device, including at least one processing unit and at least one storage unit, wherein the storage is single Member is stored with computer program, when described program is executed by the processing unit, so that the processing unit perform claim is wanted The step of seeking 1~8 any claim the method.
22. a kind of computer-readable medium is stored with the computer program that can be executed by computing device, when described program is being counted When being run on calculation device, so that the step of computing device perform claim requires 1~/8 any the method.
CN201710655827.XA 2017-08-03 2017-08-03 Dynamic content accesses accelerated method, system, medium and computing device Pending CN109391640A (en)

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