CN103716348B - Data access method, system and device based on CDN network - Google Patents
Data access method, system and device based on CDN network Download PDFInfo
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- CN103716348B CN103716348B CN201210375940.XA CN201210375940A CN103716348B CN 103716348 B CN103716348 B CN 103716348B CN 201210375940 A CN201210375940 A CN 201210375940A CN 103716348 B CN103716348 B CN 103716348B
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Abstract
The present invention proposes a kind of data access method based on CDN network, system and device, the method comprise the steps that acting on behalf of the first data access message that CDN node receives client；It acts on behalf of CDN node and multiple second data access message is generated according to the first data access message；It acts on behalf of CDN node and source station is sent to by mulitpath；And it acts on behalf of CDN node and the response message returned at first in mulitpath is forwarded to client.Through the embodiment of the present invention above-mentioned acts on behalf of CDN node, the mulitpath of CDN node selection is acted on behalf of, so that acting on behalf of CDN node can receive the response message returned at first and provide it to client.Accordingly even when some path is blocked, the access of client will not be influenced, to improve the access speed of client.
Description
Technical field
Technical field of communication network of the present invention, in particular to it is a kind of based on CDN (Content Delivery Network,
Content distributing network) network data access method, system and device.
Background technique
The development of internet brings a very big convenience to life, and people can stay indoors, before a computer
Various information all over the world can be inquired, the webpage of major portal website is logged in, occurs in the recent period in the world
Major issue can cover all at one glance.The conceivable information of user oneself only need to input corresponding keyword in search column, then click really
Recognize, just have ten hundreds of relevant informations moment show, eliminate books and periodicals, paper and road hurry back and forth bring inconvenience,
It has saved the time in this way, and our life can be enriched.
However, being located at Pekinese source station, to receive the searching request of user in all parts of the country.China is vast in territory, the whole nation
The user of various regions accesses Pekinese's search service, and the network environment of different section is also different, and user accesses Bei Jingyuan
When station, a certain section of path experiences congestion or failure among the path Chang Huiyou, the net that will necessarily be had many consumers in this way
Network time delay is larger, thus causes access speed slack-off.
Usual user directly accesses source station, if any one failure among the link between user and source station,
It will affect entire access speed.
Summary of the invention
The present invention is directed at least solve one of the technical problems existing in the prior art.
For this purpose, an object of the present invention is to provide a kind of data access sides based on content distributing network CDN network
Method.This method makes it possible to optimize configured transmission according to the characteristic of network, to improve the access speed of data.
Second object of the present invention is to propose a kind of data access system based on CDN network.
Third object of the present invention is to propose a kind of to act on behalf of CDN node.
To achieve the goals above, the data access side based on CDN network of embodiment according to a first aspect of the present invention
Method is the following steps are included: act on behalf of the first data access message that CDN node receives client；CDN node is acted on behalf of according to described
One data access message generates multiple second data access message；It acts on behalf of CDN node and source station is sent to by mulitpath；Agency
The response message returned at first in the mulitpath is forwarded to the client by CDN node.
The above method through the embodiment of the present invention acts on behalf of the mulitpath of CDN node selection, so that acting on behalf of CDN node
It can receive the response message returned at first and provide it to client.Accordingly even when some path is blocked, also not
It will affect the access of client, to improve the access speed of client.
To achieve the goals above, embodiment according to a second aspect of the present invention proposes a kind of number based on CDN network
According to access system, including client, act on behalf of CDN node, at least one middle-agent's CDN node and source station, wherein the client
End, for sending the first data access message to the CDN node of acting on behalf of；It is described to act on behalf of CDN node, for according to described first
Data access message generates multiple second data access message, and is sent to source station by mulitpath, and will be described a plurality of
The response message returned at first in path is forwarded to the client.
Above system through the embodiment of the present invention acts on behalf of the mulitpath of CDN node selection, so that acting on behalf of CDN node
It can receive the response message returned at first and provide it to client.Accordingly even when some path is blocked, also not
It will affect the access of client, to improve the access speed of client.
To achieve the goals above, a kind of CDN node of acting on behalf of that proposes of embodiment according to a third aspect of the present invention includes:
Receiving module, for receiving the first data access message of client transmission；Generation module, for being visited according to first data
Ask that message generates multiple second data access message；Sending module, for respectively being visited second data by mulitpath
Ask that message is sent to source station, wherein an at least paths act on behalf of CDN node and the source station to be described in the mulitpath
Direct access path, and an at least paths are described to act on behalf of CDN node by described at least one in the mulitpath
Between act on behalf of the path that CDN node is connected with the source station；And forwarding module, for will return at first in the mulitpath
Response message is forwarded to the client.
Through the embodiment of the present invention above-mentioned acts on behalf of CDN node, acts on behalf of the mulitpath of CDN node selection, so that agency
CDN node can receive the response message returned at first and provide it to client.Accordingly even when some path have occurred it is stifled
Plug, will not influence the access of client, to improve the access speed of client.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Of the present invention and/or additional aspect and advantage will become from the following description of the accompanying drawings of embodiments
Obviously and it is readily appreciated that, in which:
Fig. 1 is the flow chart according to the data access method based on CDN network of one embodiment of the invention；
Fig. 2 is the data access process schematic according to inventive embodiments；
Fig. 3 is the structure chart for the data access system based on CDN network according to one embodiment of the invention；And
Fig. 4 is a kind of structural block diagram for acting on behalf of CDN node according to one embodiment of the invention.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.On the contrary, this
The embodiment of invention includes all changes fallen within the scope of the spiritual and intension of attached claims, modification and is equal
Object.
In the description of the present invention, it is to be understood that, term " first ", " second " etc. are used for description purposes only, without
It can be interpreted as indication or suggestion relative importance.In the description of the present invention, it should be noted that unless otherwise specific regulation
And restriction, term " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection,
Or it is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, intermediary can also be passed through
It is indirectly connected.For the ordinary skill in the art, the tool of above-mentioned term in the present invention can be understood with concrete condition
Body meaning.In addition, in the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more.
Any process described otherwise above or method description are construed as in flow chart or herein, and expression includes
It is one or more for realizing specific logical function or process the step of executable instruction code module, segment or portion
Point, and the range of the preferred embodiment of the present invention includes other realization, wherein can not press shown or discussed suitable
Sequence, including according to related function by it is basic simultaneously in the way of or in the opposite order, Lai Zhihang function, this should be of the invention
Embodiment person of ordinary skill in the field understood.
As shown in Figure 1, for according to the flow chart of the data access method based on CDN network of one embodiment of the invention.
As shown in Fig. 2, for according to the data access process schematic of inventive embodiments.
Data access method based on CDN network as shown in Figure 1 includes the following steps:
Step S101 acts on behalf of the first data access message that CDN node receives client.
Step S102 acts on behalf of CDN node according to the first data access message and generates multiple second data access message.Its
In, the data of the second data access message request are identical as the data of the first data access message request.At of the invention one
In embodiment, the second data access message and the first data access message are essentially identical, and the quantity of the second data access message
Determine that each path has a corresponding second data access message based on the quantity in the path for acting on behalf of CDN node selection, because
Difference between this each second data access message is the routing address entrained by it.
Step S103 acts on behalf of CDN node by mulitpath and multiple second data access message is sent to source station respectively.
In one embodiment of the invention, at least a paths are to act on behalf of CDN node and source station in mulitpath
Direct access path, and in mulitpath an at least paths be act on behalf of CDN node by least one middle-agent's CDN node with
The connected path in source station.In other embodiments of the invention, acting on behalf of may include multiple centres between CDN node and source station
Act on behalf of CDN node.Due to acting on behalf of there are a plurality of different path, multiple second data access between CDN node and source station
The time that message reaches source station may be different.
Step S104, source station obtain corresponding data according to multiple second data access message, and according to the data of acquisition
Multiple response messages are generated, and multiple response messages are sent to and act on behalf of CDN node.Wherein, multiple response messages and arrival
Corresponding to second data access message of source station.Since the time that multiple second data access message reach source station is different,
Source station also can be different according to the time that the second data access message generates response message, in one response message of the every generation in this source station
It will be fed back to by corresponding path and act on behalf of CDN node.Referring to shown in Fig. 2, such as acts on behalf of CDN node and select three roads
Radial source station sends the second data access request, for example, by acting on behalf of the straight chain path between CDN node and source station, Yi Jifen
The first individual path and the are not formed by by first middle-agent's CDN node and second middle-agent's CDN node and source station
Two individual paths.
Certainly it should be noted that in Fig. 2, first middle-agent's CDN node and second middle-agent's CDN node are only
Schematical description may have multiple middle-agent CDN sections in other embodiments of the invention on an individual path
Point.For example, data access request is sent out a first middle-agent CDN node A by first agent's CDN node, then the first centre generation
The data access request is transmitted to second middle-agent's CDN node B again by reason CDN node A, and second middle-agent's CDN node B is again
Forward it to source station.
Step S105 acts on behalf of CDN node for the response message returned at first in mulitpath and is forwarded to client.In this hair
In bright embodiment, since multiple requested data of second data access message are all the same, returned in these response messages
The data returned are the same.Therefore, in embodiments of the present invention, CDN node is acted on behalf of to forward the response message returned at first
To client.In the other embodiment of the present invention, the response message returned at first is being transmitted to visitor acting on behalf of CDN node
After the end of family, the event that CDN node records the forwarding is acted on behalf of, when other response messages return again to, CDN node is acted on behalf of and abandons it
His response message, does not relay to client.
Referring to shown in Fig. 2, first agent's CDN node is reached by the response message that the first individual path is fed back at first,
Its pass through the second individual path feed back second arrivals first agent's CDN node of response message, and first agent's CDN node and
Straight chain path between source station is blocked, to can not reach first agent by the response message that the straight chain path is fed back
CDN node.Therefore, because the first individual path and the second individual path difference between first agent's CDN node and source station are
Response message has been fed back, therefore even if straight chain path is blocked, the access speed of data will not be influenced.
Step S106, client obtain corresponding data according to the response message.
In one embodiment of the invention, client can be computer or mobile terminal etc..
Due to acting on behalf of the mulitpath of CDN node selection, disappear so that acting on behalf of CDN node and can receive the response returned at first
It ceases and provides it to client.Accordingly even when some path is blocked, the access of client will not be influenced, to mention
The high access speed of client.
As shown in figure 3, for according to the structure chart of the data access system based on CDN network of one embodiment of the invention.
As shown in figure 3, for the data access system based on CDN network include client 100, act on behalf of CDN node 200,
At least one middle-agent's CDN node 300 and source station 400.
Client 100, for act on behalf of CDN node 200 send the first data access message.
CDN node 200 is acted on behalf of, for generating multiple second data access message according to the first data access message.Wherein
The data of second data access message request are identical as the data of the first data access message request.In an implementation of the invention
In example, the second data access message and the first data access message are essentially identical, and the quantity of the second data access message is based on
The quantity for acting on behalf of the path of the selection of CDN node 200 determines that each path has a corresponding second data access message, because
Difference between this each second data access message is the routing address entrained by it.
It acts on behalf of CDN node 200 and source station 400 is sent to by mulitpath.
In one embodiment of the invention, an at least paths are to act on behalf of CDN node 200 and source station in mulitpath
400 direct access path, and an at least paths are to act on behalf of CDN node 200 to pass through at least one middle-agent in mulitpath
The path that CDN node 300 is connected with source station 400.In other embodiments of the invention, CDN node 200 and source station 400 are acted on behalf of
Between may include multiple middle-agent's CDN nodes 300.
Source station 400 obtains corresponding data according to data access message, and generates response message according to the data of acquisition, with
And the response message is sent to and acts on behalf of CDN node 200.
It acts on behalf of CDN node 200 and the response message returned at first in mulitpath is forwarded to client 100.In the present invention
Embodiment in, since multiple requested data of second data access message are all the same, returned in these response messages
Data be the same.Therefore, in embodiments of the present invention, CDN node 200 is acted on behalf of to forward the response message returned at first
To client 100.In other embodiments of the invention, CDN node 200 is being acted on behalf of in the response message that will be returned at first
It is transmitted to after client 100, acts on behalf of the event that CDN node 200 records the forwarding, when other response messages return again to, generation
It manages CDN node 200 and abandons other response messages, do not relay to client 100.
Client 100 obtains corresponding data according to the response message.
In one embodiment of the invention, client 100 can be computer or mobile terminal etc..
Due to acting on behalf of the mulitpath of CDN node selection, disappear so that acting on behalf of CDN node and can receive the response returned at first
It ceases and provides it to client.Accordingly even when some path is blocked, the access of client will not be influenced, to mention
The high access speed of client.
As shown in figure 4, for according to a kind of structural block diagram for acting on behalf of CDN node of one embodiment of the invention.
CDN node of acting on behalf of as shown in Figure 4 includes receiving module 210, generation module 220, sending module 230 and forwarding mould
Block 240.
Wherein, receiving module 210, for receiving the data request information of client transmission；
Wherein, generation module 220, for generating multiple second data access message according to the first data access message；Its
In, the data of the second data access message request are identical as the data of the first data access message request.At of the invention one
In embodiment, the second data access message and the first data access message are essentially identical, and the quantity of the second data access message
Determine that each path has a corresponding second data access message based on the quantity in the path for acting on behalf of CDN node selection, because
Difference between this each second data access message is the routing address entrained by it.
Wherein, sending module 230, for the second data access message to be sent to source station respectively by mulitpath,
In, an at least paths are the direct access path for acting on behalf of CDN node and source station in mulitpath, and at least one in mulitpath
Paths are to act on behalf of CDN node to pass through the path that at least one middle-agent's CDN node is connected with source station；In other of the invention
In embodiment, acting on behalf of may include multiple middle-agent's CDN nodes between CDN node and source station.Due to act on behalf of CDN node and
There is a plurality of different path, therefore multiple second data access message reach the time possible difference of source station between source station.
Wherein, receiving module 210 are also used to for multiple response messages being sent to and act on behalf of CDN node.Wherein, multiple responses
Message is source station according to the corresponding data of multiple second data access message acquisition, and is generated according to the data of acquisition.Wherein, more
Corresponding to second data access message of a response message and arrival source station.Since multiple second data access message reach source station
Time it is different, therefore source station also can be different according to the time that the second data access message generates response message, every in this source station
It generates a response message and it will be fed back to by corresponding path and act on behalf of CDN node.Referring to shown in Fig. 2, such as act on behalf of
CDN node selects three paths to send the second data access request to source station, for example, by acting on behalf of between CDN node and source station
Straight chain path, and be formed by respectively by first middle-agent's CDN node and second middle-agent's CDN node with source station
First individual path and the second individual path.
Certainly it should be noted that in Fig. 2, first middle-agent's CDN node and second middle-agent's CDN node are only
Schematical description may have multiple middle-agent CDN sections in other embodiments of the invention on an individual path
Point.For example, data access request is sent out a first middle-agent CDN node A by first agent's CDN node, then the first centre generation
The data access request is transmitted to second middle-agent's CDN node B again by reason CDN node A, and second middle-agent's CDN node B is again
Forward it to source station.
Wherein, forwarding module 240, for the response message returned at first in mulitpath to be forwarded to client.At this
In the embodiment of invention, since multiple requested data of second data access message are all the same, in these response messages
The data of return are the same.Therefore, in embodiments of the present invention, CDN node is acted on behalf of to turn the response message returned at first
Issue client.In the other embodiment of the present invention, it is transmitted to acting on behalf of CDN node by the response message returned at first
After client, the event that CDN node records the forwarding is acted on behalf of, when other response messages return again to, acts on behalf of CDN node discarding
Other response messages, do not relay to client.
Referring to shown in Fig. 2, first agent's CDN node is reached by the response message that the first individual path is fed back at first,
Its pass through the second individual path feed back second arrivals first agent's CDN node of response message, and first agent's CDN node and
Straight chain path between source station is blocked, to can not reach first agent by the response message that the straight chain path is fed back
CDN node.Therefore, because the first individual path and the second individual path difference between first agent's CDN node and source station are
Response message has been fed back, therefore even if straight chain path is blocked, the access speed of data will not be influenced.
Due to acting on behalf of the mulitpath of CDN node selection, disappear so that acting on behalf of CDN node and can receive the response returned at first
It ceases and provides it to client.Accordingly even when some path is blocked, the access of client will not be influenced, to mention
The high access speed of client.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, not to the schematic representation of the term
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiment or examples in can be combined in any suitable manner.In the present invention, term " multiple " refers to two or two
More than a.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is by appended claims and its equivalent limits.
Claims (5)
1. a kind of data access method based on content distributing network CDN network, which comprises the following steps:
Act on behalf of the first data access message that CDN node receives client；
The CDN node of acting on behalf of is according to the multiple second data access message of the first data access message generation；
It is described to act on behalf of CDN node source station is sent to by mulitpath；And
It is described to act on behalf of CDN node the response message returned at first in the mulitpath is forwarded to the client, wherein institute
The data for stating the second data access message request are identical as the data of the first data access message request, response message with arrive
Corresponding to the second data access message up to source station；
An at least paths are the direct access path for acting on behalf of CDN node Yu the source station in the mulitpath, and described
An at least paths are that the CDN node of acting on behalf of passes through at least one middle-agent's CDN node and the source in mulitpath
It stands connected path, each path has a corresponding second data access message, between each second data access message
Difference be the routing address entrained by it.
2. data access method as described in claim 1, which is characterized in that the client is computer or mobile terminal.
3. a kind of data access system based on CDN network, which is characterized in that including client, act on behalf of CDN node, at least one
A middle-agent's CDN node and source station, wherein
The client for sending the first data access message to the CDN node of acting on behalf of, and receives and described acts on behalf of CDN
The response message of node feeding back；
It is described to act on behalf of CDN node, for generating multiple second data access message according to the first data access message, and lead to
It crosses mulitpath and is sent to source station, and the response message returned at first in the mulitpath is forwarded to the client,
Wherein, the data of the second data access message request are identical as the data of the first data access message request, response
Corresponding to message and the second data access message of arrival source station；
An at least paths are the direct access path for acting on behalf of CDN node Yu the source station in the mulitpath, and described
An at least paths pass through at least one described middle-agent's CDN node and institute for the CDN node of acting on behalf of in mulitpath
The connected path in source station is stated, each path has a corresponding second data access message, therefore each second data access
Difference between message is the routing address entrained by it.
4. data access system as claimed in claim 3, which is characterized in that the client is computer or mobile terminal.
5. a kind of CDN agent node characterized by comprising
Receiving module, for receiving the first data access message of client；
Generation module, for generating multiple second data access message according to the first data access message；
Sending module, for the second data access message to be sent to source station respectively by mulitpath, wherein described more
An at least paths are the direct access path for acting on behalf of CDN node Yu the source station in paths, and in the mulitpath
An at least paths are that the CDN node of acting on behalf of is connected by least one described middle-agent's CDN node with the source station
Path；And
Forwarding module, for the response message returned at first in the mulitpath to be forwarded to the client, wherein described
The data of second data access message request are identical as the data of the first data access message request, response message and arrival
Corresponding to second data access message of source station；
An at least paths are the direct access path for acting on behalf of CDN node Yu the source station in the mulitpath, and described
An at least paths pass through at least one described middle-agent's CDN node and institute for the CDN node of acting on behalf of in mulitpath
The connected path in source station is stated, each path has a corresponding second data access message, therefore each second data access
Difference between message is the routing address entrained by it.
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| CN105897822B (en) * | 2015-11-11 | 2019-07-26 | 法法汽车(中国)有限公司 | A kind of content distributing network CDN node selection method and its device |
| CN107566429A (en) * | 2016-06-30 | 2018-01-09 | 中兴通讯股份有限公司 | Base station, the response method of access request, apparatus and system |
| US10326819B2 (en) | 2016-08-09 | 2019-06-18 | Baidu Online Network Technology (Beijing) Co., Ltd. | Method and apparatus for detecting access path |
| CN107707469A (en) * | 2016-08-09 | 2018-02-16 | 百度在线网络技术（北京）有限公司 | Method and apparatus for test access path |
| CN107347100B (en) * | 2017-07-28 | 2020-04-21 | 成都知道创宇信息技术有限公司 | Transparent proxy forwarding method for content distribution network |
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| CN1708972A (en) * | 2002-10-31 | 2005-12-14 | 英国电讯有限公司 | Parallel access to data over a packet network |
| CN101938505A (en) * | 2009-07-01 | 2011-01-05 | 华为技术有限公司 | Method, system and proxy node for distributing P2P streaming media data |
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|---|---|---|---|---|
| CN1708972A (en) * | 2002-10-31 | 2005-12-14 | 英国电讯有限公司 | Parallel access to data over a packet network |
| CN101938505A (en) * | 2009-07-01 | 2011-01-05 | 华为技术有限公司 | Method, system and proxy node for distributing P2P streaming media data |
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