CN101800731B - Network transmission management server, network transmission management method and network transmission system - Google Patents

Network transmission management server, network transmission management method and network transmission system Download PDF

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Publication number
CN101800731B
CN101800731B CN 200910005154 CN200910005154A CN101800731B CN 101800731 B CN101800731 B CN 101800731B CN 200910005154 CN200910005154 CN 200910005154 CN 200910005154 A CN200910005154 A CN 200910005154A CN 101800731 B CN101800731 B CN 101800731B
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client
transmission means
content
judged
network
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CN101800731A (en
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藤井由纪夫
吉内英也
田代卓
刘立品
王鸿鸣
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Hitachi Ltd
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Hitachi Ltd
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Abstract

The invention relates to a network transmission management server, which is connected with a plurality of clients and a content server serving as a data source for providing content data for the clients through networks. The network transmission management server is characterized by comprising a request receiving unit, a storage unit and a transmission mode judging unit, wherein the request receiving unit receives information related with the request from the clients; the storage unit stores the information from the request receiving unit and the information from the content server; the transmission mode judging unit judges the network load condition according to the information stored in the storage unit so as to judge the transmission mode of the content data of the clients sending the request according to the network load condition, and judges the transmission mode as a first transmission mode when the network load condition does not reach the specified condition; and the transmission mode judging unit judges the transmission mode as a second transmission mode when the network load condition reaches the specified condition. Therefore, the network transmission management server can combine the advantages of the first transmission mode and the second transmission mode to effectively perform the transmission service of the content data.

Description

Network transmission management server, network transmission management method and network transmission system
Technical field
The present invention relates to network transmission management server, network transmission management method and network transmission system, specifically relate in network file transmission, server, the method that the Internet Transmission mode is managed and the network transmission system of using this server.
Background technology
In the past, the transmission means of network file adopted client/server (C/S) pattern usually, and the content that is about to file is stored in the concentrated server, and client must just can be obtained data by access server.This pattern can guarantee speed and the quality of transmission when to a certain degree following at client terminal quantity, it is limited that yet server can offer concurrent link number and the network bandwidth of client, therefore along with the increase of client terminal quantity, the speed of client/server (C/S) schema file transmission can be more and more slower, even can cause systemic breakdown.
The appearance of equity (P2P) technology, allow client can be directly connected to other clients, carry out file-sharing and exchange, be implemented in the data sharing of client, increase along with client terminal quantity, transmission speed is more and more faster, and has avoided the high problem of server cost in client/server (C/S) pattern.Yet the characteristics of equity (P2P) pattern are quantity and the distributions that service quality depends on the network bandwidth and online client, can not guarantee the stable service quality of client (QuAlity of Service:QoS).
C/S model and P2P pattern have respectively merits and demerits separately, and C/S and P2P used as separate document transmission system in the past, therefore wanted to utilize the client of their strong point separately must join in C/S and these two systems of P2P.
The publication number a kind of shared file system that can enjoy P2P type and C/S type advantage that has been 200510006837.8 patent disclosure.This system receives shared file registration request and the access request that each client is sent with the unified management server, request comprises C/S type and P2P type, after the file type of C/S type is downloaded to client, management server is the P2P type with C/S type document change, after P2P type file was uploaded to content server, management server was the C/S type with P2P type document change.This technology can realize C/S type file-sharing and the file-sharing of P2P type by the identical file shared system.
Publication number a kind of network file transmission method and system of mixed mode that be 200610089311.5 patent disclosure, this system can provide the conversion of C/S transmission mode and P2P transmission mode.In this scheme, after client sends content download request, content server at first provides content to download with the C/S mode, whether there is this content in the P2P module under the search module search client simultaneously, if, then transmission control module control client is converted to the P2P mode and downloads, otherwise, continue to download with C/S model.This technology can alleviate the pressure of content server, and so that the P2P system can utilize the existing content on a large amount of existing servers.
Yet, the factors such as the service quality of C/S mode and P2P mode and offered load situation such as content parameters, the network bandwidth, client terminal quantity are relevant, although above-mentioned two kinds of technology have realized sharing of C/S and two kinds of transmission meanss of P2P in same system, but the memory location of content has only been considered in the conversion of dual mode, reckon without the factor of the above-mentioned C/S of impact and P2P transmission means service quality, therefore the advantage of C/S and P2P pattern can not be given full play to, the system works inefficiency may be caused.
Therefore need a kind of network transmission system or the device that can scientifically control C/S and the conversion of P2P pattern, improve the service quality of mixed C/S and the network transmission system of P2P transmission means so that the network transmission system of mixed mode can science, efficient work.
Summary of the invention
To have problems in order solving in the above-mentioned conventional art, to the invention provides network transmission management server, its network transmission management method and the network transmission system of advantage of low cost, the high transmission speed of a kind of high-quality service that can in network file transmission, effectively utilize the C/S mode and P2P mode.
Network transmission management server of the present invention, its by network and a plurality of clients with provide the content server of content-data to be connected as data source to client, comprising: the request receiving unit, its receive with from the relevant information of the request of client; Memory cell, its storage is from the information of request receiving unit with from the information of content server; The transmission means judging unit, judge the offered load situation according to the information that is stored in the described memory cell, thereby judge the transmission means of content-data of the client of the request of sending according to the offered load situation, when the offered load situation does not reach rated condition, be judged as and use the first transmission means; When the offered load situation reaches rated condition, be judged as and use the second transmission means.According to network transmission management server of the present invention, can improve the network file transmission service quality, and reduce the load of network.
Network transmission management server of the present invention is preferably, the transmission means judging unit upgrades the client-requested quantity that is stored in the memory cell according to the solicited message from client that receives via the request receiving unit, according to client-requested quantity load state is judged, be setting when following in client-requested quantity, be judged as and use the first transmission means; , be judged as and use the second transmission means during greater than setting in client-requested quantity.According to above-mentioned network transmission management server, the concurrent link number of server can be remained in the scope of its load capacity, be conducive to guarantee the service quality of network file transmission, and can improve transmission speed.
In addition, the network transmission management server of the invention described above is preferably, and the setting of client-requested quantity has higher limit and lower limit, when client-requested quantity increases to higher limit, is judged as and uses the second transmission means; When client-requested quantity is reduced to lower limit, is judged as and uses the first transmission means.Can avoid thus the frequent transmission means of switching when client terminal quantity changes greatly, can save network overhead and also further guarantee service quality.
In addition, the network transmission management server of the invention described above is preferably, as the information from content server, in memory cell, store the information of the output bandwidth of the code check size of the content-data in the content server and content server, the transmission means judging unit is according to the information from content server, the setting of computing client end request quantity.Can determine exactly thus the bandwidth load situation of content server.
The network transmission management server of the invention described above also is preferably, the transmission means judging unit, and the transmission means of content-data that will send the client of request after the offered load situation reaches rated condition is judged as uses the second transmission means.Thus, can reduce to use the client of the first transmission means frequently to switch transmission means, improve service quality.
In addition, the network transmission management server of the invention described above also is preferably, the transmission means judging unit after judging that the offered load situation reaches rated condition, is judged as use the second transmission means with whole client of the request of sending and the transmission means of content server; Judging that the offered load situation becomes when not satisfying rated condition, the transmission means of whole clients of the request of sending and content server is being judged as use the first transmission means.At this moment, a content server node can be used as the second transmission means is operated under the second transmission means.
In addition, the network transmission management server of the invention described above also can be preferably, in memory cell, store the credit score of whole clients of the request of sending that receives via the request receiving unit, when the offered load situation reaches rated condition, the transmission means judging unit is judged according to the credit score that is stored in each client in the memory cell, is judged as for the low user of credit score and uses the second transmission means.And, also can be more preferably, change in the situation that does not satisfy rated condition in the offered load situation, the transmission means judging unit is judged according to the credit score that is stored in each client in the memory cell, is judged as for the high user of credit score and uses the first transmission means.By according to credit score client being managed, can preferentially guarantee the service quality of the client that credit score is high.
In addition, the network transmission management server of the invention described above also can be preferably, in memory cell, store the information of the client bandwidth that receives via the request receiving unit, the transmission means judging unit, the client and the transmission means between the content server that client bandwidth are lower than defined threshold are judged as use the second transmission means.The bandwidth of client as the offered load evaluation criterion, can be saved the bandwidth of content server thus, be conducive to improve the service quality to whole clients.
In the network transmission management server of the invention described above, the first transmission means is the C/S transmission means, and the second transmission means is the P2P transmission means.
In addition, the present invention also provides a kind of network transmission management method, it is applied to by a plurality of clients of network connection and the network transmission management server of the present invention of the content server of content-data is provided to client as data source, it judges the transmission means of content-data of the client of the request of sending according to the offered load situation, when the offered load situation does not reach rated condition, be judged as and use the first transmission means; When the offered load situation reaches rated condition, be judged as and use the second transmission means.
In addition, the present invention also provides a kind of network transmission system, and it constitutes, and is connected with at network: a plurality of clients; The content server of content-data is provided to client as data source; Network transmission management server with the invention described above, network transmission management server is judged the transmission means of content-data of the client of the request of sending according to the offered load situation, when the offered load situation does not reach rated condition, be judged as and use the first transmission means; When the offered load situation reaches rated condition, be judged as and use the second transmission means.
Description of drawings
Fig. 1 is the formation schematic diagram of the network transmission system that the present invention relates to.
Fig. 2 is the formation block diagram of network transmission management server of the present invention.
Fig. 3 is the tupe figure of first embodiment of the invention.
Fig. 4 is the tupe figure of first embodiment of the invention.
Fig. 5 is the tupe figure of second embodiment of the invention.
Fig. 6 is the tupe figure of third embodiment of the invention.
Fig. 7 is the tupe figure of fourth embodiment of the invention.
Fig. 8 is the tupe figure of fourth embodiment of the invention.
Embodiment
Below with reference to accompanying drawing, the specific embodiment of the present invention is elaborated.
Embodiment one
Fig. 1 is the schematic diagram of Network File Transmission System that comprises the network transmission management server of present embodiment, comprising: network transmission management server 100, and for the treatment of the content-data service request of client, and the transmission means of the content-data of control client; Content server 200 is used for the memory of content data file, and the content-data service can be provided take C/S model as client; P2P server 300 is used for bringing in the content-data service that receives with P2P mode managing customer; Client 400 sends content-data service (download) request, and can receive the content-data service with C/S or P2P dual mode.
Fig. 2 is the structural representation of network transmission management server of the present invention, comprising: request receiving unit 102, for content-data service request and the client-side information of obtaining client; Memory cell 104 is used for the storage information relevant with the request of client; And transmission means judging unit 106, be used for the content delivery mode according to offered load situation judgement client.
According to Fig. 3 the specific works flow process of the network transmission management server (MS) 100 of present embodiment is elaborated.When request receiving unit 102 receives content-data service request from client Cn, the information relevant with client-requested is stored in the memory cell 104, for the ease of in memory cell 104, these information being managed generation client-side information admin table as shown in table 1; Simultaneously, the content delivery mode admin table in the updated stored memory cell 104 as shown in table 2.
Table 1
Content ID Client id Client ip The client line duration Client bandwidth The client credit score Transmission means
C1 Ca **** ... T1 M1 S1 C/S
C1 Cb **** ... T2 M2 S2 C/S
C1 Cc **** ... T3 M3 S3 P2P
. . . . . . . . . . . . . .
C1 Cn **** ... Tn Mn Sn --
Table 2
Content ID Rule of judgment Critical value The online client number
C1 Client terminal quantity N A1 N
Client-side information admin table for table 1, for the ease of each embodiment of the present invention is described, in the explanation of present embodiment, the client-side information admin table has comprised unnecessary information, but in the practical application, the above-mentioned information relevant with client-requested can suitably be selected as required, in this client-side information admin table, can comprise the information such as content ID, client id and/or client ip address, client line duration, client bandwidth, client credit score, transmission means, specifically will describe in detail in aftermentioned.
For the content delivery mode admin table of table 2, because in the present embodiment, utilize the quantity of client that the offered load situation is judged.Therefore preserve content ID, as the project of the Rule of judgment of offered load, count N as the maximum client terminal quantity A1 of the server of critical value and as the online client of judging parameter.When client was sent the content-data service request, the information in the his-and-hers watches 2 was carried out updated stored, thereby the online client number becomes N=N+1.
Transmission means judging unit 106 is viewing content transmission means admin table at first, " Rule of judgment " in this table is number clients, so online client is counted N to transmission means judging unit 106 and critical value (being in the present embodiment the maximum number clients of content server) A1 compares.
If N<=A1, the content delivery mode of then judging this client Cn is C/S.On the one hand, transmission means judging unit 106 upgrades judged result " C/S mode " and is saved in client-side information admin table in the memory cell 104, upgrades the transmission means "--" of Cn in the client-side information admin table with the transmission means " C/S " of client Cn; On the other hand, transmission means judging unit 106 sends notice to content server (CS) 200 with the information of client Cn, thereby use the C/S mode that client Cn is carried out the content-data service, sending the information of notifying to content server 200 can comprise, the IP address of the ID of content, the ID of client Cn, client Cn and transmission means " C/S " etc. are suitably selected as required.
When if transmission means judging unit 106 is judged N>A1, the number clients of denoting contents server reaches maximum, if the quality that further increases the number clients of C/S mode then can cause content-data to serve is low, thereby judges this moment and in the P2P mode client Cn is carried out the content-data service.Simultaneously, "--" with the transmission means information of client Cn in the client-side information admin table is updated to " P2P ".
In addition, transmission means judging unit 106 sends the notification to P2P server unit (PS) 300, this notice can comprise the IP address of ID, client Cn of ID, the client Cn of content, and the client-side information that uses the C/S mode in the client-side information admin table.The client of P2P server 300 control client Cn and other C/S mode connects, and receives this content service in the P2P mode.
And, under the condition that agreement allows, also can directly send the client-side information that uses the C/S mode in the client-side information admin table to client Cn by transmission means judging unit 106, thereby be realized the content-data service of P2P mode by client Cn to other clients of C/S mode request of sending.
Under the certain condition of the bandwidth of content server, the client terminal quantity that server can be born under the C/S model is limited, and the transmission speed of P2P pattern then can increase along with the increase of client terminal quantity.Therefore, present embodiment comes Control the content data transfer mode according to the quantity of client.In the less situation of client terminal quantity, select the C/S transmission means; When client terminal quantity reaches maximum, start the P2P transmission means, so that C/S and P2P dual mode are worked simultaneously.
In addition, when the content-data service is withdrawed from the client Cb of a certain C/S mode transmission, network transmission management server 100 receives this withdraw from request after, online client number in the content delivery mode admin table in the memory cell 104 is upgraded N=N-1, while is according to the information of relevant client Cb " transmission means " in the client-side information admin table, content of announcement server 200 cancellation is to the service of the C/S mode that withdraws from requesting client Cb, then from the row of client-side information admin table deletion Cb.At this moment, transmission means judging unit 106 is the online client size of counting N and critical value A1 relatively, when N<A1, illustrate that all reproducing clients is the C/S mode, so need not any action.When N>=A1, illustrate that the client of C/S mode this moment and the client of P2P mode exist simultaneously, for the Internet resources that utilize of maximal efficiency, can be converted to the client of other P2P modes the C/S mode.Simultaneously the client-side information admin table being carried out correspondence upgrades.
When the client (for example Cn) of a certain P2P mode withdraws from the content-data service, only need to upgrade online number clients N, and upgrade the client-side information admin table and delete its corresponding row.
Variation one
In above-described embodiment one, as the condition of judging the offered load situation, used the maximum number clients A1 of server, in this case, effective for the general data service is provided, but for the stream medium data service, can smoothness watch video content in order to guarantee client, need to guarantee to the client of each C/S mode the bandwidth that it takies.In the case, can use the content delivery mode admin table shown in the table 3.
Table 3
Content ID Rule of judgment The content code check Critical value The online client number
C1 The content server bandwidth R1 A2 N
From above-described embodiment one different being, in content delivery mode admin table, preserve content ID, judge the project of network load conditions, content code check R1, critical value A2, and as the reproduction number clients N that judges parameter.Wherein, and critical value A2=(B * α)/R1, (α<1 can be the available ratio of content server bandwidth for adjusting coefficient, and is relevant with arranging of content server).
Transmission means judging unit 106 amasss to judge the offered load situation by what relatively critical value A2 and online client were counted N and content code check R1, and other actions are identical with embodiment one, and description is omitted.
Embodiment two
Identical with embodiment one, it is Rule of judgment that present embodiment is selected the quantity of online client equally, different is, in the present embodiment, when reaching the critical value A3 of Rule of judgment, network transmission management server is not that control C/S and P2P dual mode are worked simultaneously, but the C/S mode is converted to the P2P mode.Like this, in the less situation of client terminal quantity, use the C/S mode, provide service with the P2P mode in the larger situation of client terminal quantity, can make the two realize good and bad complementation.
In the present embodiment, can be client terminal quantity when two kinds of transmission means speed of C/S and P2P are identical under the same band as the selection of the critical value A3 of Rule of judgment, that is: when client terminal quantity during less than A3, the transmission speed of C/S model is greater than the P2P pattern, when client terminal quantity during greater than A3, the transmission speed of P2P pattern is greater than C/S model.
Below in conjunction with Fig. 5 the course of work of the network transmission management server of present embodiment is described.Client Cn sends content and joins request.This solicited message is obtained in the request receiving unit 102 of network transmission management server 100, and " the online client number " of update content transmission means admin table makes the online client number add 1, i.e. N=N+1.Upgrade simultaneously customer information end admin table (with reference to table 1).
Transmission means judging unit 106 at first viewing content transmission means admin table (with reference to table 2, difference is A3 in critical value only), " Rule of judgment " in this table is number clients, so online client is counted N to transmission means judging unit 106 and critical value A3 compares.
When N<A3, the content delivery mode of then judging this client is C/S.Identical with embodiment one, use the C/S mode to carry out the content-data service to client Cn.
When N=A3, judge that then the transmission means with whole content-data service is converted to P2P.Therefore, whole clients is updated to the P2P transmission means in the interior client-side information admin table of 106 pairs of memory cell of transmission means judging unit, and to the whole online client information of P2P server 300 transmissions, control all clients and obtain this content-data service in the P2P mode.In order to improve service quality, content server 200 can be used as a node and works in the P2P mode at this moment.
When N>A3, illustrate that whole clients are the P2P mode, so transmission means judging unit 106 judges that the transmission means of this client Cn is P2P.Transmission means judging unit 106 sends the notification to P2P server 300, controls this client Cn and other client connects, and receives this content-data service in the P2P mode.
In addition, when a certain client Ca withdraws from the content-data service, the request receiving module 102 of network transmission management server 100 obtains this and withdraws from information, and " the online client number " of update content transmission means admin table, make the online client number subtract 1, be N=N-1, delete simultaneously the relevant information of this client in the client-side information admin table.
Then, 106 pairs of these online client numbers of transmission means judging unit are judged:
If N<A3, then the content delivery mode of current all clients is C/S, and not withdrawing from of this client can exert an influence to the transmission means of other clients;
If N>=A3, then the content delivery mode of current all clients is P2P, and not withdrawing from of this client can exert an influence to the transmission mode of other clients;
If N=A3-1, then the content delivery mode of current all clients is P2P, and need to all be transformed into C/S.Then the transmission means judging unit 106.
Transmission means judging unit 106 sends the information of all clients to content server 200, sends a message to simultaneously P2P server 300.Content server 200 provides service in the C/S mode as all clients, the P2P path that P2P server 300 cuts off all clients.
Variation two
This variation is compared difference and is with embodiment 3, in order to prevent that conversion regime too frequently causes network transmission system unstable between two kinds of transmission meanss of C/S and P2P, critical value A3 to Rule of judgment sets two values, the critical value that order is changed from C/S model to the P2P pattern is A3+a, the critical value of conversion is A3-a from P2P to the C/S model, wherein the size of a can be by system definition, or keeper's self-defining.
Other these variation of part are identical with embodiment three.
Embodiment three
In addition, the available bandwidth of client also is a concept of offered load, and in streaming media service, if client wants is watched content in real time, then its available bandwidth must be higher than this content-data code stream size, otherwise client can't be watched this content-data in real time.Therefore, present embodiment is take the available bandwidth of client as Rule of judgment, to watching in real time the customer end adopted C/S mode transmitting content data of content, to not watching in real time the customer end adopted P2P mode transmitting content data of content.Can reduce like this pressure of content server 200 ends, reduce the cost of server, and can effectively utilize the bandwidth of content server.
Critical value A4 is used for judging the offered load situation of client in the present embodiment, drawn by system-computed, computational methods are: the content code check of supposing client-requested is Ri, i.e. critical value A4:A4=Ri in the content delivery mode admin table shown in the table 4 * β of Rule of judgment then, (β>1, for adjusting coefficient, to guarantee client enough bandwidth receiving stream media content-datas are arranged).Since in the present embodiment, judge the offered load situation based on client bandwidth, therefore, the information of in content delivery mode admin table, also preserving client bandwidth M.
Table 4
Content ID Rule of judgment The content code check Critical value Client bandwidth
C1 Client bandwidth Ri A4 M
[0077]Referring to Fig. 6 the course of work of the network transmission management server of present embodiment is described.
The client-side information admin table of present embodiment, with above-mentioned table 1, the item of wherein using is content ID, client id, client ip, client bandwidth and transmission means.
As shown in Figure 6, when client Cn adds content service, client Cn sends the content-data service request, and received by the request receiving unit 102 of network transmission management server 100, and the information relevant with client Cn is stored in the client-side information admin table of memory cell 104, " client bandwidth " of the content delivery mode admin table shown in the his-and-hers watches 4 upgrades simultaneously.
Transmission means judging unit 106 is viewing content transmission means admin table (table 4) at first, and " Rule of judgment " in this table is client bandwidth, so transmission means judging unit 106 compares client bandwidth M and the critical value A4 of Cn.
If M>=A4 judges that then this client network load state is good, can use the content-data service of C/S mode.Transmission means judging unit 106 is according to judged result " C/S ", and client-side information management (table 1) in the updated stored unit 104 is updated to " C/S " with the transmission means of client Cn.Same with the various embodiments described above, send the notification to content server 200, provide the content-data service by content server 200 in the C/S mode as client Cn.
If M<A4 judges that then this client network load state is bad, thereby use the P2P mode that the content-data service is provided.Transmission means judging unit 106 is according to the client-side information in judged result " P2P " the updated stored unit 104 management (table 1), and the transmission means of client Cn is updated to " P2P ".Same with the various embodiments described above, send the notification to P2P server 300, connected by P2P server 300 control client Cn and other client, receive this content-data service in the P2P mode.
In addition, when a certain client Ca withdraws from the content-data service, the request of network transmission management server 100 is accepted module 102 and is obtained this and withdraw from information, and " the online client number " of update content transmission means admin table, delete simultaneously the relevant information of this client in the client-side information admin table.
Embodiment four
In the present embodiment, except having considered client terminal quantity, also consider the credit score of each client as Rule of judgment.Credit score is the mark that system is calculated to each client according to certain rule, can be relevant with factors such as the line duration of client, consumption amount, content-data Service Privileges, credit score is higher, and the credit rating (priority) that represents this client is higher.
In the present embodiment, the transmission means admin table is as shown in table 5.
Content ID Rule of judgment The content code check Critical value The online client number Credit score
C1 Client terminal quantity+credit score R1 A1 N S
As shown in Figure 7, when client Cn sends the content-data service request, memory cell 104 is carried out the updated stored identical with above-mentioned execution mode, upgrade simultaneously transmission means admin table (table 5), transmission means judging unit 106 at first compares critical value A1 and online client and counts N.
If N<A1 judges that then this client Cn uses the C/S mode.
If N>=A1 then according to the credit score of client Cn, searches the minimum client of using the C/S mode of credit score S from the client-side information admin table.
Credit score in the client that finds the minimum use C/S mode of credit score, when being lower than the credit score Sn of client Cn, judge that client Cn uses the C/S mode to receive the content-data service, and the client of using the C/S mode that this credit score is minimum is used P2P, and client's information management table is upgraded, and utilize above-mentioned same procedure that the transmission means of this client that finds is switched, and client Cn is used the C/S mode;
In the situation of the client that does not find the credit score use C/S mode lower than client Cn, judge that client Cn uses the P2P mode and the client-side information admin table is upgraded, and utilization and above-mentioned same processing provide the content-data service to client Cn in the P2P mode.
In the present embodiment, when client terminal quantity during less than the Rule of judgment critical value, all clients all adopt C/S model, when client terminal quantity during greater than the Rule of judgment critical value, the customer end adopted C/S model high to credit rating, the customer end adopted P2P pattern low to credit rating.Present embodiment is when reducing the server cost, so that the client of high credit score obtains better service quality.
In addition, as shown in Figure 8, when client Ca withdraws from the content-data service request, the request receiving module 102 of network transmission management server 100 receives this request, content delivery mode admin table in the inquiry memory cell 104, and " the online client number " of update content transmission means admin table make the online client number subtract 1, be N=N-1, delete simultaneously the relevant information of this client in the client-side information management.Then, the transmission means of 106 pairs of these clients of transmission means judging unit is judged:
If this customer end adopted P2P pattern, perhaps this customer end adopted C/S model and N<A1, then not withdrawing from of this client can exert an influence to the transmission mode of other clients, and transmission means judging unit 106 does not need to do other work.
If this customer end adopted C/S mode and N>A1 can judge that then other online client partly adopt the C/S mode, part adopts the P2P pattern.Then at first viewing client-side information management of transmission means judging unit 106, select the highest client of credit score in the client under the current P2P mode according to the client credit score, judge that its transmission means is converted to C/S, same with the various embodiments described above, this client is switched to the C/S mode.
More than, formation and the workflow of network transmission management server of the present invention had been described in detail, this area staff can carry out flexible combination with deterministic process in the various embodiments described above.Therefore, accompanying drawing and the concrete execution mode of being not limited to of the present invention, those skilled in the art can be out of shape and change the present invention as required in the situation that does not depart from connotation of the present invention and scope.These distortion and variation all fall within the scope of the present invention.

Claims (12)

1. network transmission management server, its by network and a plurality of clients with provide the content server of content-data to be connected as data source to client, it is characterized in that, comprising:
The request receiving unit, its receive with from the relevant information of the request of client;
Memory cell, its storage is from the information of request receiving unit with from the information of content server;
The transmission means judging unit is judged the offered load situation according to the information that is stored in the described memory cell, thereby judges the transmission means of content-data of the client of the request of sending according to the offered load situation,
When the offered load situation does not reach rated condition, be judged as and use the first transmission means; When the offered load situation reaches rated condition, be judged as and use the second transmission means.
2. network transmission management server as claimed in claim 1 is characterized in that:
Described transmission means judging unit upgrades the client-requested quantity that is stored in the described memory cell according to the solicited message from client that receives via the described request receiving element, according to described client-requested quantity load state is judged, be setting when following in client-requested quantity, be judged as and use described the first transmission means; , be judged as and use described the second transmission means during greater than setting in client-requested quantity.
3. network transmission management server as claimed in claim 2 is characterized in that:
The setting of described client-requested quantity has higher limit and lower limit,
When described client-requested quantity increases to described higher limit, be judged as and use described the second transmission means;
When described client-requested quantity is reduced to described lower limit, is judged as and uses described the first transmission means.
4. network transmission management server as claimed in claim 2 is characterized in that:
As the information from content server, in described memory cell, store the information of the output bandwidth of the code check size of the content-data in the content server and content server,
Described transmission means judging unit calculates the setting of described client-requested quantity according to the information of content server.
5. such as any one described network transmission management server in the claim 1~4, it is characterized in that:
Described transmission means judging unit, the transmission means of content-data that will send the client of request after the offered load situation reaches rated condition are judged as and use described the second transmission means.
6. such as any one described network transmission management server in the claim 1~4, it is characterized in that:
Described transmission means judging unit after judging that the offered load situation reaches rated condition, is judged as the transmission means of the content-data of whole client of the request of sending and uses described the second transmission means; Judging that the offered load situation becomes when not satisfying rated condition, the transmission means of the content-data of whole clients of the request of sending is being judged as uses described the first transmission means.
7. such as any one described network transmission management server in the claim 1~4, it is characterized in that:
In described memory cell, store the credit score of whole clients of the request of sending that receives via the described request receiving element,
When described offered load situation reached rated condition, described transmission means judging unit was judged according to the described credit score that is stored in each client in the memory cell, is judged as for the low user of credit score and uses described the second transmission means.
8. network transmission management server as claimed in claim 7 is characterized in that:
Change in the situation that does not satisfy rated condition in described offered load situation, described transmission means judging unit is judged according to the described credit score that is stored in each client in the memory cell, is judged as for the high user of credit score and uses described the first transmission means.
9. such as any one described network transmission management server in the claim 1~4, it is characterized in that:
In described memory cell, store the information of the client bandwidth that receives via the described request receiving element,
Described transmission means judging unit, the transmission means of content-data that client bandwidth is lower than the client of defined threshold are judged as and use the second transmission means.
10. network transmission management server as claimed in claim 1 is characterized in that:
Described the first transmission means is the C/S transmission means, and described the second transmission means is the P2P transmission means.
11. a network transmission management method, its be applied to by a plurality of clients of network connection and provide to client as data source content-data content server such as the described network transmission management server of claim 1~10, it is characterized in that:
Judge the transmission means of content-data of the client of the request of sending according to the offered load situation,
When the offered load situation does not reach rated condition, be judged as and use the first transmission means; When the offered load situation reaches rated condition, be judged as and use the second transmission means.
12. a network transmission system is characterized in that, is connected with at network:
A plurality of clients;
The content server of content-data is provided to client as data source; With
Such as the described network transmission management server of claim 1~10,
Described network transmission management server is judged the transmission means of content-data of the client of the request of sending according to the offered load situation,
When the offered load situation does not reach rated condition, be judged as and use the first transmission means; When the offered load situation reaches rated condition, be judged as and use the second transmission means.
CN 200910005154 2009-02-06 2009-02-06 Network transmission management server, network transmission management method and network transmission system Expired - Fee Related CN101800731B (en)

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