CN102118323B - Content delivery network service device and content download method - Google Patents
Content delivery network service device and content download method Download PDFInfo
- Publication number
- CN102118323B CN102118323B CN201010001566.8A CN201010001566A CN102118323B CN 102118323 B CN102118323 B CN 102118323B CN 201010001566 A CN201010001566 A CN 201010001566A CN 102118323 B CN102118323 B CN 102118323B
- Authority
- CN
- China
- Prior art keywords
- content
- cdn server
- peer
- positional information
- buffer memory
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims abstract description 43
- 239000000203 mixture Substances 0.000 claims description 8
- 238000009826 distribution Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000008569 process Effects 0.000 description 7
- 230000006855 networking Effects 0.000 description 6
- 238000004364 calculation method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 238000012163 sequencing technique Methods 0.000 description 2
- 230000002123 temporal effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000007630 basic procedure Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
Abstract
The invention discloses a kind of content delivery network service device and content download method.Wherein, this content download method comprises: the access CDN server of subscriber equipment receives the content requests from this subscriber equipment, wherein, carries the mark of the content of asking to some extent in this content requests; Access CDN server obtains the positional information of the content of this mark correspondence by peer-to-peer overlay network; Access CDN server, according to this positional information, is downloaded this content by reciprocity Versatile content distributing network, and the content of download is sent to subscriber equipment.By the present invention, the range of application of reciprocity Versatile content distributing network can be expanded, improve Consumer's Experience.
Description
Technical field
The present invention relates to communication and technical field of the computer network, in particular to a kind of content distributing network (ContentDeliveryNetwork, referred to as CDN) server and content download method.
Background technology
Content distributing network (ContentDeliveryNetwork, referred to as CDN) object that proposes is the pressure that the growth in order to extenuate user and business brings to network, to ensure that the user being distributed in each corner of network enjoys excellent service quality.CDN passes through by content caching at network edge, thus reduces the flow by network backbone, has saved the cost of operator's dilatation, has also improved the speed that user accesses content.
At present, content distributing network can support the polytype contents distributions such as Streaming Media, improve internet television (InternetProtocolTelevision or InteractivePersonalTelevision, referred to as IPTV), video request program (VideoonDemand, referred to as VoD), the service quality of the business such as Online Music, and optimize the flow of these business.In existing content distributing network, usually by Virtual network operator as content distributing network supplier, the unified content distributing network by server construction is provided, support flow optimization and high-quality service quality (QualityofService, referred to as QoS), content distributing network by contents distribution to network edge, and the content distributing network of users from networks operator obtain content-data.
As shown in Figure 1, in order to strengthen reliability and autgmentability, reduce deployment maintenance cost, point-to-point (PointToPoint, referred to as P2P) technology has been used to set up the reciprocity Versatile content distributing network (being called P2PCDN) supporting the content such as Streaming Media and file.
As shown in Figure 2, in the prior art, UE from the basic procedure of reciprocity Versatile content distributing network downloading contents is: UE first needs the positional information of the content downloaded by its access location-server inquiry, and then from the positional information obtained, select the position of one or more optimum to carry out downloading contents.
But, in actual applications, some UE may not support this first inquiring position again chosen position download downloading mode, these UE only support the downloading mode of direct request content.Therefore, according to existing download flow process, these UE cannot use reciprocity Versatile content distributing network, from reciprocity Versatile content distributing network downloading contents, thus reduce Consumer's Experience.
From the problem of reciprocity Versatile content distributing network downloading contents, at present effective solution cannot not yet be proposed for some UE in correlation technique.
Summary of the invention
Cannot propose the present invention from the problem of reciprocity Versatile content distributing network downloading contents for some UE in correlation technique, for this reason, main purpose of the present invention is to provide a kind of access CDN server and content download method, to solve the problem.
To achieve these goals, according to an aspect of the present invention, a kind of CDN server is provided.
CDN server according to the present invention is applied to the reciprocity Versatile content distributing network be made up of multiple CDN server, wherein, part or all of CDN server in above-mentioned multiple CDN server forms the peer-to-peer overlay network of reciprocity Versatile content distributing network, this peer-to-peer overlay network adopts the distributed storage mode of equity to store the positional information of content, this CDN server comprises: receiver module, for receiving the request message of request by reciprocity Versatile content distributing network downloading contents of subscriber equipment transmission; Enquiry module, for the positional information of content of being asked by peer-to-peer overlay network inquiring user equipment; Download module, for the positional information inquired according to enquiry module, downloads this content by reciprocity Versatile content distributing network; Sending module, for sending to subscriber equipment by foregoing.
Further, above-mentioned CDN server also comprises: judge module, for judging the CDN server whether buffer memory foregoing of user equipment requests, if so, then triggering sending module and this content of buffer memory is sent to subscriber equipment, otherwise, trigger enquiry module.
Further, above-mentioned CDN server also comprises: the first cache module, for the content that buffer memory download module is downloaded.
Further, above-mentioned CDN server also comprises: update module, for utilizing the positional information of the foregoing stored in the peer-to-peer overlay network of the updating location information of CDN server equity Versatile content distributing network.
Further, above-mentioned enquiry module comprises: judging unit, for judging whether CDN server is cached with the positional information of foregoing, if so, then triggers the positional information that acquiring unit obtains this content of buffer memory; Otherwise, trigger the positional information that acquiring unit obtains this content from peer-to-peer overlay network; Acquiring unit, for obtaining the positional information of the foregoing of buffer memory, or obtains the positional information of this content from peer-to-peer overlay network.
Further, above-mentioned CDN server also comprises: the second cache module, for the positional information of the foregoing that buffer memory acquiring unit obtains from peer-to-peer overlay network.
To achieve these goals, according to a further aspect in the invention, provide a kind of content download method, the method is used for by reciprocity Versatile content distributing network downloading contents from content delivering system, wherein, equity Versatile content distributing network comprises multiple CDN server, part or all of CDN server in the plurality of CDN server forms the peer-to-peer overlay network of reciprocity Versatile content distributing network, peer-to-peer overlay network adopts the distributed storage mode of equity to store the positional information of content, the method comprises: the access CDN server of subscriber equipment receives the content requests from this subscriber equipment, wherein, the mark of the content of asking to some extent is carried in this content requests, access CDN server obtains the positional information of the content of this mark correspondence by peer-to-peer overlay network, access CDN server, according to this positional information, is downloaded this content by reciprocity Versatile content distributing network, and the content of download is sent to subscriber equipment.
Preferably, the positional information accessing CDN server acquisition foregoing comprises: access CDN server obtains the positional information of this content from peer-to-peer overlay network.
Preferably, the positional information that access CDN server obtains foregoing comprises: access CDN server judges whether to be cached with the positional information of this content, if so, then obtains the positional information of this content of buffer memory; Otherwise access CDN server obtains the positional information of this content from peer-to-peer overlay network.
Further, after access CDN server obtains the positional information of foregoing from peer-to-peer overlay network, the method also comprises: access CDN server determines the positional information not having this content of buffer memory, the positional information of this content that buffer memory obtains from peer-to-peer overlay network.
Further, before access CDN server downloads foregoing, the method also comprises: access CDN server judges whether buffer memory foregoing, if, then this content of buffer memory is sent to subscriber equipment, otherwise access CDN server performs the operation of downloading this content.
Further, after access CDN server downloads foregoing, the method also comprises: access CDN server determines do not have buffer memory foregoing, then this content of buffer memory download.
Further, after access CDN server buffer memory foregoing, the method also comprises: access CDN server utilizes the positional information of this content stored in its updating location information peer-to-peer overlay network.
Pass through the present invention, the inquiry that UE carries out location of content is acted on behalf of by the access CDN server of UE, and act on behalf of UE downloading contents, the content of download is sent to UE, solve the problem that some UE can not make reciprocity Versatile content distributing network downloading contents, and then reach the range of application extending reciprocity Versatile content distributing network, improve Consumer's Experience.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the configuration diagram of the reciprocity Versatile content distributing network according to prior art;
Fig. 2 is the basic flow sheet downloaded according to the content of prior art;
Fig. 3 is a kind of networking mode schematic diagram of the reciprocity Versatile content distributing network applied according to the CDN server of the embodiment of the present invention;
Fig. 4 is the another kind of networking mode schematic diagram of the reciprocity Versatile content distributing network applied according to the CDN server of the embodiment of the present invention;
Fig. 5 is the structural representation of the CDN server according to the embodiment of the present invention;
Fig. 6 is the structural representation of the CDN server according to first preferred embodiment of the invention;
Fig. 7 is the structural representation of the CDN server according to second preferred embodiment of the invention;
Fig. 8 is the structural representation of the CDN server according to third preferred embodiment of the invention;
Fig. 9 is the flow chart of the content download method according to the embodiment of the present invention;
Figure 10 is the flow chart according to the embodiment of the present invention one;
Figure 11 is the flow chart according to the embodiment of the present invention two;
Figure 12 is the flow chart according to the embodiment of the present invention three;
Figure 13 is the flow chart according to the embodiment of the present invention four.
Embodiment
Hereinafter also describe the present invention in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
It should be noted that, the hereinafter mentioned content of the embodiment of the present invention can be a complete Streaming Media or file, and also can be a fragment of Streaming Media or file, the embodiment of the present invention limit this.
Device embodiment
According to embodiments of the invention, provide a kind of CDN server, UE is linked into reciprocity Versatile content distributing network by this CDN server user.
For the ease of understanding the CDN server that the embodiment of the present invention provides, first the reciprocity Versatile content distributing network (P2PCDN) of the CDN server application that the embodiment of the present invention provides is described.
In embodiments of the present invention, reciprocity Versatile content distributing network is provided by content distributing network provider, can be made up of multiple CDN server.Form all or part of CDN server composition peer-to-peer overlay network (i.e. P2P overlay network) of reciprocity Versatile content distributing network, if part CDN server composition P2P overlay network, then other CDN server is the client of P2P overlay network, specifically as shown in Figure 3 and Figure 4.
Fig. 3 and Fig. 4 is the networking mode schematic diagram of two kinds of reciprocity Versatile content distributing networks according to the embodiment of the present invention, in the networking mode shown in Fig. 3, all CDN server are completely reciprocity, all CDN server form the peer-to-peer overlay network of reciprocity Versatile content distributing network, and the access CDN server of UE is in peer-to-peer overlay network.In the networking mode shown in Fig. 4, CDN server is divided into two-stage: part CDN server constitutes peer-to-peer overlay network, all the other CDN server are clients of peer-to-peer overlay network, peer-to-peer overlay network can be accessed, the access CDN server of UE can in peer-to-peer overlay network, also can not in peer-to-peer overlay network, as the client of peer-to-peer overlay network.
In a particular application, peer-to-peer overlay network can adopt distributed hashtable (DHT) algorithm to build, also other P2P algorithms can be adopted to build, and, peer-to-peer overlay network can adopt standardized RELOAD protocol construction, be convenient to each manufacturer exploitation the interconnecting of node, or peer-to-peer overlay network also can adopt other P2P protocol construction.
With the framework of the P2PCDN of the prior art shown in Fig. 1 unlike, in the P2PCDN shown in Fig. 3 or Fig. 4, the CDN server of composition P2PCDN can provide the positional information of content, also can cache contents, namely, in the reciprocity Versatile content distributing network shown in Fig. 3 or Fig. 4, P2P overlay network uses the distributed storage method of P2P to carry out the positional information of all the elements in storage system.Further, the access CDN server of UE can the content of temporary cache current popular.
Fig. 5 is the structural representation of the CDN server according to the embodiment of the present invention, and as shown in Figure 5, the CDN server according to the embodiment of the present invention mainly comprises: receiver module 51, enquiry module 53, download module 55 and sending module 57.Wherein, receiver module 51, for receiving the request message of request by reciprocity Versatile content distributing network downloading contents of subscriber equipment transmission; Enquiry module 53 is connected with receiver module 51, for the positional information of content of being asked by peer-to-peer overlay network inquiring user equipment; Download module 55 is connected with enquiry module 53, for the positional information inquired according to enquiry module 53, downloads foregoing by reciprocity Versatile content distributing network; Sending module 57 is connected with download module 55, sends to subscriber equipment for the content downloaded by download module 55.
In a particular application, subscriber equipment is by location, log in, the flow processs such as certification are linked into the CDN server in P2PCDN, when needs are by P2PCDN downloading contents, UE initiates request to its CDN server accessed, request downloads certain content by P2PCDN, after its receiver module 51 accessing CDN server receives this request, enquiry module 53 inquires about the positional information that this UE asks the content downloaded, and after inquiring the positional information of this content, this CDN server acts on behalf of UE, start download module 55 and download this content by P2PCDN, and by sending module 57, this content downloaded is sent to UE.
In specifically practicing, in the CDN server that the content downloaded of UE request can access at this UE as the content caching of current popular, in this case, CDN server directly can obtain this content of buffer memory, and without the need to being downloaded this content by P2PCDN, therefore, as shown in Figure 6, according to the CDN server of first preferred embodiment of the invention compared with the CDN server shown in Fig. 5, can also comprise: judge module 50, for judging this CDN server whether buffer memory content of user equipment requests, if, then trigger sending module 57 and this content of buffer memory is sent to subscriber equipment, otherwise, trigger the positional information that enquiry module 53 inquires about this content, this content can be downloaded according to this positional information to make download module 55.
Further, if the content that CDN server does not have buffer memory UE to ask, then after downloading this content by P2PCDN, can this content of buffer memory, therefore, as shown in Figure 6, the CDN server according to first preferred embodiment of the invention can also comprise: the first cache module 52, for the content that buffer memory download module 55 is downloaded.
And, at the first cache module 52 buffer memory after foregoing, when inquiring about the positional information of this content to make subsequent node, this CDN server can be inquired, can upgrade the positional information of this content stored in the peer-to-peer overlay network of P2PCDN, therefore, as shown in Figure 7, CDN server according to second preferred embodiment of the invention can also comprise: update module 54, for utilizing the positional information of this content stored in the peer-to-peer overlay network of the updating location information P2PCDN of this CDN server.
In specific implementation process, peer-to-peer overlay network carrys out the positional information of all the elements in storage system by content location list, particularly, this content location list comprises: the positional information storing the node of the one or more content of storage in Current Content dissemination system, wherein, node comprise in following three one of or its combination in any: CDN server, content source node, subscriber equipment; In specific implementation process, positional information can be the information such as the IP address of node or identification information, and, the mark of content can be adopted to record the positional information of the node storing each content with the corresponding relation of positional information of the node storing this content.Therefore, when the positional information of this content that update module 54 stores in peer-to-peer overlay network upgrades, the positional information of this first CDN server in this content-location information that can record in the list of foregoing memory location, is increased.
In a particular application, the content that UE asks may be before certain UE content of asking, and, when UE before asks this content, this CDN server can by the positional information buffer memory of this content, in this case, enquiry module 53 directly can obtain the positional information of buffer memory, therefore, as shown in Figure 8, enquiry module 53 according to the CDN server of third preferred embodiment of the invention can comprise: judging unit 531, for judging whether CDN server is cached with the positional information of foregoing, if, then trigger the positional information that acquiring unit 533 obtains this content of buffer memory, otherwise, trigger the positional information that acquiring unit 533 obtains this content from the P2P overlay network of P2PCDN, acquiring unit 533 for obtaining the positional information of the foregoing of buffer memory, or obtains the positional information of this content from P2P overlay network.
Further, as shown in Figure 8, the second cache module 56 can also be comprised according to the CDN server of third preferred embodiment of the invention, for the positional information of the foregoing that buffer memory acquiring unit 533 obtains from P2P overlay network.
Three preferred embodiments of the CDN server that the embodiment of the present invention provides are merely illustrated in above-mentioned Fig. 6 to Fig. 8, in specific implementation process, CDN server according to the embodiment of the present invention can also have numerous embodiments, such as, above-mentioned first cache module 54 and the second cache module 56 can exist simultaneously, and these two modules can unify setting, also can be provided separately, specifically not repeat them here.
By the above-mentioned CDN server that the embodiment of the present invention provides, UE can be acted on behalf of and complete the inquiry of the positional information of content and the download of content, thus make the UE of the downloading mode only supporting direct request content also can by P2PCDN downloading contents.
According to the embodiment of the present invention, additionally provide a kind of content download method, the method is used for by P2PCDN downloading contents from content delivering system.
Fig. 9 is the flow chart of the content download method according to the embodiment of the present invention, and as shown in Figure 9, the method mainly comprises the following steps (step S901-step S905):
The access CDN server of step S901:UE receives the content requests from this UE, wherein, carries the mark of the content of asking to some extent in this content requests;
Wherein, the access CDN server of UE is a CDN server of composition P2PCDN, and UE accesses P2PCDN by this CDN server, and, this access CDN server can form a node of the P2P overlay network of P2PCDN, also can be the client of the P2P overlay network of P2PCDN.
Step S903: access CDN server obtains the positional information of the content of above-mentioned mark correspondence by peer-to-peer overlay network;
Step S905: access CDN server, according to above-mentioned positional information, is downloaded this content by reciprocity Versatile content distributing network, and the content of download is sent to UE.
The foregoing method for down loading provided by the embodiment of the present invention, access CDN server can act on behalf of the positional information that UE inquires about the content of UE request, and downloads corresponding content according to this positional information, and the content of download is sent to UE.
Below in conjunction with specific embodiment, the foregoing method for down loading that the embodiment of the present invention provides is described.
In the following examples, the P2P overlay network of composition P2PCDN all or part of CDN server composition P2PCDN, P2P overlay network uses the positional information of all the elements in the distributed storage method storage system of P2P, particularly, P2P overlay network is by the positional information (i.e. the memory location of all the elements) of location of content list storage all the elements.
In the following embodiments, the Networking protocol for RELOAD agreement as P2P overlay network is described, Store and Fetch is the method being respectively used to store in RELOAD overlay network and read data resource defined in RELOAD agreement.
And, in the following embodiments, gather around substantial node and may comprise content source node and/or CDN server, and, the position of self can be stored in peer-to-peer overlay network in this location of content list by the node having certain content after this content of acquisition, to want that the node inquired about can inquire.
In the following examples, assuming that UE has been linked into the CDN server in content distributing network by flow processs such as a series of location, login, certifications, UE can pass through the address that the mode such as name server (DomainNameServer, referred to as DNS), manual configuration, access server obtains access CDN server.In the following examples, assuming that UE has obtained the essential information of content by approach such as portal websites.
Embodiment one
In the present embodiment, the access CDN server of UE judges its positional information not having this content of buffer memory, obtains the positional information of the content that UE asks from the P2P peer-to-peer overlay network of P2PCDN; In addition, in the present embodiment, access CDN server does not check its whether this content of buffer memory, and the positional information according to obtaining directly downloads this content by P2PCDN, and this content downloaded is sent to UE.
Figure 10 is the flow chart of the present embodiment, as shown in Figure 10, in the present embodiment mainly through following steps downloading contents:
Step 101, UE sends request to its access CDN server, request downloading contents;
Particularly, the content that request is downloaded can be a whole Streaming Media, a whole file, also can be a fragment of Streaming Media and file.
Step 102, access CDN server determines the positional information of the content that this locality does not have buffer memory UE to ask, and inquires about the memory location of this content to P2P overlay network, and concrete access CDN server can obtain location of content list by the mode of RELOADFetch;
Step 103, P2P overlay network returns to the memory location of this content to access CDN server, i.e. location of content list;
Step 104, the memory location that access CDN server returns according to previous step, gathers around substantial node downloading contents from wherein one or more;
Step 105, access CDN server returns the foregoing of download to UE.
Embodiment two
In the present embodiment, the access CDN server of UE is when receiving request, first judge that it does not have the positional information of this content of buffer memory not have this content of buffer memory yet, the positional information of the content that also buffer memory UE asks is obtained from the P2P peer-to-peer overlay network of P2PCDN, and downloaded and this content of buffer memory by P2PCDN according to the positional information obtained, and this content downloaded is sent to UE.
Figure 11 is the flow chart of the present embodiment, as shown in figure 11, in the present embodiment mainly through following steps downloading contents:
Step 111, UE sends request to its access CDN server, request downloading contents;
Step 112, access CDN server determines the content that this locality does not have buffer memory UE to ask and this content-location information, inquires about the memory location of this content to P2P overlay network;
Step 113, P2P overlay network returns to the memory location of this content to access CDN server;
Step 114, the memory location of this content of access CDN server buffer memory;
Step 115, the memory location that access CDN server returns according to previous step, gathers around substantial node downloading contents from wherein one or more;
Step 116, this content that access CDN server buffer memory is downloaded;
Access CDN server can directly be downloaded and this content of buffer memory, also when meeting pre-conditioned, can determine this content of buffer memory.Particularly, this pre-conditionedly includes but not limited to one of following or its combination in any:
(1) whether the number of times accessing this content of CDN server reception request exceedes predetermined threshold value, namely judges according to the popularity degree of this content, if ask the number of times of this content to exceed predetermined threshold value, this content very flow process is described, then determines this content of buffer memory;
(2) whether access CDN server remaining memory space can this content of buffer memory, namely judge according to self storage capacity of access CDN server, if the remaining memory space of access CDN server can this content of buffer memory, then determine this content of buffer memory;
(3) whether the quantity storing the node of this content in content delivering system reaches preset value, if do not had, then determines this content of buffer memory;
(4) in content delivering system, whether the distribution of the node of current this content of storage is reasonable, if unreasonable, and needs in this this content of access CDN server buffer memory, then determines this content of buffer memory.
Step 117-118, Self address joins in the content location list of P2P overlay network preservation by access CDN server, and have after making during this location of content of querying node and can find this CDN server, step 117 and step 118 are optional.
Step 119, returns the foregoing of download to UE, this step and above-mentioned steps 116 are without temporal sequencing.
Embodiment three
In the present embodiment, the positional information of the content that buffer memory UE asks in access CDN server, but there is no this content of buffer memory.
Figure 12 is the flow chart of the present embodiment, as shown in figure 12, in the present embodiment mainly through following steps downloading contents:
Step 121, UE sends request to its access CDN server, request downloading contents;
Step 122, access CDN server determine content that this locality does not have buffer memory UE to ask and but this content-location information of buffer memory;
Step 123, access CDN server obtains the memory location of this content of buffer memory from this locality;
Step 124, the memory location that access CDN server obtains according to previous step, gathers around substantial node downloading contents from wherein one or more;
Step 125, this content that access CDN server buffer memory is downloaded;
Step 126-127, Self address joins in the content location list of P2P overlay network preservation by access CDN server, and have after making during this location of content of querying node and can find this CDN server, step 126 and step 127 are optional.
Step 128, returns the foregoing of download to UE, this step and above-mentioned steps 125 are without temporal sequencing.
In above-mentioned steps 123, although access CDN server saves the memory location of the content that UE asks, in order to ensure the accuracy of the memory location obtained, access CDN server still can obtain the memory location of this content by P2P overlay network.
Embodiment four
In the present embodiment, access the content that CDN server buffer memory UE asks, directly the content of buffer memory is sent to UE.
Figure 13 is the flow chart of the present embodiment, as shown in figure 13, in the present embodiment mainly through following steps downloading contents:
Step 131, UE sends request to its access CDN server, request downloading contents;
Step 132, accesses the content that CDN server determination local cache UE asks;
Step 133, this content of buffer memory is sent to UE by access CDN server.
As mentioned above, in embodiments of the present invention, the inquiry that UE carries out location of content is acted on behalf of by the access CDN server of UE, and act on behalf of UE downloading contents, the content of download is sent to UE, solve the problem that some UE can not make reciprocity Versatile content distributing network downloading contents, and then reach the range of application extending reciprocity Versatile content distributing network, improve Consumer's Experience.Further, in embodiments of the present invention, access CDN can the positional information of the requested content of buffer memory UE and/or content, thus can accelerate the inquiry velocity of positional information and the speed of download of content, improves the efficiency that content is downloaded.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. a content distribution network CDN service device, be applied to the reciprocity Versatile content distributing network be made up of multiple CDN server, wherein, the peer-to-peer overlay network of the described reciprocity Versatile content distributing network of part or all of CDN server composition in described multiple CDN server, described peer-to-peer overlay network adopts the distributed storage mode of equity to store the positional information of content, it is characterized in that, described CDN server comprises:
Receiver module, for receiving the request message of request by described reciprocity Versatile content distributing network downloading contents of subscriber equipment transmission;
Enquiry module, for inquiring about the positional information of the described content that described subscriber equipment is asked by described peer-to-peer overlay network;
Download module, for the described positional information inquired according to described enquiry module, downloads described content by described reciprocity Versatile content distributing network;
Sending module, for sending to described subscriber equipment by described content;
Wherein, described enquiry module comprises: judging unit, for judging whether described CDN server is cached with the positional information of described content, if so, then triggers the positional information that acquiring unit obtains the described content of buffer memory; Otherwise, trigger the positional information that described acquiring unit obtains described content from described peer-to-peer overlay network; Described acquiring unit, for obtaining the positional information of the described content of buffer memory, or obtains the positional information of described content from described peer-to-peer overlay network.
2. CDN server according to claim 1, is characterized in that, described CDN server also comprises:
Judge module, for judging the described CDN server whether buffer memory described content of described user equipment requests, if so, then triggering described sending module and the described content of buffer memory is sent to described subscriber equipment, otherwise, trigger described enquiry module.
3. CDN server according to claim 2, is characterized in that, described CDN server also comprises:
First cache module, for the described content that download module described in buffer memory is downloaded.
4. CDN server according to claim 3, is characterized in that, described CDN server also comprises:
Update module, for utilizing the positional information of the described content stored in the peer-to-peer overlay network of reciprocity Versatile content distributing network described in the updating location information of described CDN server.
5. CDN server according to any one of claim 1 to 4, is characterized in that, described CDN server also comprises:
Second cache module, the described positional information of the described content obtained from described peer-to-peer overlay network for acquiring unit described in buffer memory.
6. a content download method, for passing through reciprocity Versatile content distributing network downloading contents from content delivering system, wherein, described reciprocity Versatile content distributing network comprises multiple CDN server, the peer-to-peer overlay network of the described reciprocity Versatile content distributing network of part or all of CDN server composition in described multiple CDN server, described peer-to-peer overlay network adopts the distributed storage mode of equity to store the positional information of content, and described method comprises:
The access CDN server of subscriber equipment receives the content requests from described subscriber equipment, wherein, carries the mark of the content of asking to some extent in described content requests;
Described access CDN server obtains the positional information of described content corresponding to described mark by described peer-to-peer overlay network;
Described access CDN server, according to described positional information, downloads described content by described reciprocity Versatile content distributing network, and the described content downloaded is sent to described subscriber equipment;
Wherein, the positional information that described access CDN server obtains described content comprises: described access CDN server judges whether the positional information being cached with described content, if so, then obtains the positional information of the described content of buffer memory; Otherwise described access CDN server obtains the positional information of described content from described peer-to-peer overlay network.
7. method according to claim 6, is characterized in that, the positional information that described access CDN server obtains described content comprises:
Described access CDN server obtains the positional information of described content from described peer-to-peer overlay network.
8. the method according to claim 6 or 7, is characterized in that, after described access CDN server obtains the positional information of described content from described peer-to-peer overlay network, described method also comprises:
Described access CDN server determines the positional information not having content described in buffer memory, the positional information of the described content that buffer memory obtains from described peer-to-peer overlay network.
9. method according to claim 6, is characterized in that, before described access CDN server downloads described content, described method also comprises:
Described access CDN server judges whether the described content of buffer memory, if so, then the described content of buffer memory is sent to described subscriber equipment, otherwise described access CDN server performs the operation of downloading described content.
10. the method according to claim 6 or 9, is characterized in that, after described access CDN server downloads described content, described method also comprises:
Described access CDN server determines do not have content described in buffer memory, then the described content of buffer memory download.
11. methods according to claim 10, is characterized in that, after content described in described access CDN server buffer memory, described method also comprises:
Described access CDN server utilizes in peer-to-peer overlay network described in its updating location information the positional information of the described content stored.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010001566.8A CN102118323B (en) | 2010-01-04 | 2010-01-04 | Content delivery network service device and content download method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010001566.8A CN102118323B (en) | 2010-01-04 | 2010-01-04 | Content delivery network service device and content download method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102118323A CN102118323A (en) | 2011-07-06 |
| CN102118323B true CN102118323B (en) | 2016-01-20 |
Family
ID=44216925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010001566.8A Expired - Fee Related CN102118323B (en) | 2010-01-04 | 2010-01-04 | Content delivery network service device and content download method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102118323B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102651757A (en) * | 2011-02-28 | 2012-08-29 | 中兴通讯股份有限公司 | Method and system for distributing peer-to-peer (P2P) contents |
| CN103166978A (en) * | 2011-12-08 | 2013-06-19 | 中兴通讯股份有限公司 | Method and device of data obtaining |
| WO2013091172A1 (en) | 2011-12-20 | 2013-06-27 | 华为技术有限公司 | File download method, device, and system in content delivery network |
| CN104170342B (en) * | 2012-06-20 | 2018-04-20 | 华为技术有限公司 | The method and network side equipment of contents processing |
| CN103973747B (en) * | 2013-02-04 | 2017-11-17 | 华为技术有限公司 | A kind of method and apparatus for obtaining content |
| CN103338249B (en) * | 2013-06-26 | 2018-05-25 | 优视科技有限公司 | Caching method and device |
| US10212166B2 (en) | 2014-03-24 | 2019-02-19 | Huawei Technologies Co., Ltd. | File downloading method, apparatus, and system |
| CN106549987B (en) * | 2015-09-17 | 2020-06-05 | 中兴通讯股份有限公司 | Method, device and system for deciding cache content in CDN (content delivery network) by mobile network |
| CN105872577A (en) * | 2015-12-01 | 2016-08-17 | 乐视云计算有限公司 | Method, device and system for obtaining video data |
| CN107534598B (en) * | 2015-12-31 | 2020-06-16 | 华为技术有限公司 | Media service agent method, equipment and system |
| CN106686101B (en) * | 2017-01-03 | 2020-07-17 | 北京奇虎科技有限公司 | Method and device for scheduling transmission cluster of streaming data |
| CN109040787B (en) * | 2018-09-05 | 2020-10-09 | 湖南华诺科技有限公司 | Method for content distribution network of distributed autonomous set top box |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101150421A (en) * | 2006-09-22 | 2008-03-26 | 华为技术有限公司 | A distributed content distribution method, edge server and content distribution network |
| CN101471954A (en) * | 2007-12-28 | 2009-07-01 | 华为技术有限公司 | Method for implementing network service, network service entity and intelligent network system |
| CN101540775A (en) * | 2009-04-30 | 2009-09-23 | 华为技术有限公司 | Method and device for distributing contents and network system for distributing contents |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7149797B1 (en) * | 2001-04-02 | 2006-12-12 | Akamai Technologies, Inc. | Content delivery network service provider (CDNSP)-managed content delivery network (CDN) for network service provider (NSP) |
-
2010
- 2010-01-04 CN CN201010001566.8A patent/CN102118323B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101150421A (en) * | 2006-09-22 | 2008-03-26 | 华为技术有限公司 | A distributed content distribution method, edge server and content distribution network |
| CN101471954A (en) * | 2007-12-28 | 2009-07-01 | 华为技术有限公司 | Method for implementing network service, network service entity and intelligent network system |
| CN101540775A (en) * | 2009-04-30 | 2009-09-23 | 华为技术有限公司 | Method and device for distributing contents and network system for distributing contents |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102118323A (en) | 2011-07-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102118323B (en) | Content delivery network service device and content download method | |
| CN102118376B (en) | Content delivery network service device and content download method | |
| US10783077B2 (en) | Managing resources using resource expiration data | |
| US20210021692A1 (en) | Translation of resource identifiers using popularity information upon client request | |
| US10264062B2 (en) | Request routing using a popularity identifier to identify a cache component | |
| US9608957B2 (en) | Request routing using network computing components | |
| CN102067094B (en) | cache optimization | |
| CN102065107A (en) | Peer-to-peer universal content delivery network and content caching method | |
| CN102739717B (en) | Method for down loading, download agent server and network system | |
| CN110430274A (en) | A kind of document down loading method and system based on cloud storage | |
| CN102025595A (en) | Flow optimization method and system | |
| CN103780654A (en) | Business request processing method, user terminal, business router and network system | |
| CN103595743B (en) | A kind of method, apparatus and system of downloading application software | |
| KR101218574B1 (en) | Delivering contents by using storage of network |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 |