CN101841554B - Resource downloading request method of terminal and terminal - Google Patents

Abstract

Embodiments of the present invention provide a method for a terminal to request download resources and a terminal, which can reduce the impact on the file server when a large number of terminals initiate download requests to the file server at the same time. The method includes: broadcasting a consultation message to the broadcast domain, where the consultation message is used to consult whether other terminals in the broadcast domain are downloading or requesting to download a file to be downloaded from a file server; receiving a response to the consultation message message, and determine whether to connect to the file server to download the file according to the status of other terminals in the broadcast domain downloading the file from the file server reflected in the response message. The present invention not only has high accuracy in controlling when to request downloading, and minimizes or avoids the impact on the file server when multiple terminals simultaneously initiate download requests to the file server at the same time, but also, the method provided by the embodiment of the present invention can Supports a variety of external servers.

Description

Method for terminal to request resource download and a terminal

technical field

The invention relates to the field of computer network management, in particular to a method for a terminal to request downloading resources and a terminal.

Background technique

With the rapid development of the Internet, terminals such as PCs (Personal Computers) are facing increasingly harsh application environments. Viruses such as worms, Trojan horses, and shock waves emerge in endlessly, threatening the security of terminals at all times, making terminals run slowly and application errors occur. or system crashes. For those enterprises that use a large number of PC terminals, the large number of PC terminals and the high probability of failure are also difficult things. These external and internal unfavorable factors have become a problem that enterprises need to face in the management and maintenance of PC terminals. big problem. How to ensure that PC terminals have an efficient and safe operating environment and how to implement low-cost PC terminal management has become an important issue that enterprises need to solve urgently.

Terminal Security Management (TSM, Terminal Security Management) system is currently a common solution to solve the above terminal security problems. TSM provides the software distribution function, and the terminal will frequently download security software from the server to update the security local software. When a software distribution task is configured, the task is sent to the terminal immediately, and the terminal starts the software download task, trying to download the software from the file server. If a large number of terminals request to download software at the same time, it will put a lot of pressure on the file server. For example, for the financial industry, the bandwidth from most branches to the headquarters is not very large (for example, 2M bit/s). When a large number of terminals in the branch download concurrently, it will occupy a large amount of network bandwidth between the branch and the headquarters, affecting Other businesses are operating normally.

For the problems caused by the above concurrent downloads, some file servers, such as File Transfer Protocol (FTP, File Transfer Protocol) file servers or Hypertext Transfer Protocol (HTTP, HyperText Transfer Protocol) file servers, etc. provide concurrent connection number control function, through Configured on the file server, you can limit the number of sessions connected to the file server, so as to achieve the purpose of protecting the file server and limit the occupied network bandwidth to a certain extent.

According to the above-mentioned prior art, although file servers such as FTP or HTTP can limit the number of concurrent connections for simultaneous download, they cannot control the download requests initiated by terminals to the file server at the same time, and the impact of a large number of terminals on the file server cannot be controlled.

Contents of the invention

Embodiments of the present invention provide a method for a terminal to request download resources and a terminal, which can reduce the impact on the file server when a large number of terminals initiate download requests to the file server at the same time.

A method for a terminal to request to download resources, comprising: a terminal _T1 broadcasting a consultation message to a broadcast domain, where the consultation message is used to consult other terminals in the broadcast domain whether they are downloading or requesting to download a file to be downloaded from a file server ; The terminal T ₁ receives the response message of the consultation message, and counts the number of terminals downloading the file from the file server in the broadcast domain according to the response message; if all in the broadcast domain If the number of terminals downloading the file from the file server is greater than the maximum number of terminals allowed to download concurrently from the file server in the broadcast domain, then the terminal T ₁ gives up connecting to the file server to download the file; If the number of downloading terminals in the broadcast domain is less than or equal to the maximum number of terminals allowed to download concurrently from the file server in the broadcast domain, the terminal T ₁ can download the data according to the number of concurrent downloads allowed from the file server in the broadcast domain. The difference between the maximum number of terminals and the number of downloading terminals in the broadcast domain determines whether to connect to the file server to download files.

A terminal, comprising: a sending module, configured to broadcast a consultation message to a broadcast domain, and the consultation message is used to consult whether other terminals in the broadcast domain are downloading or requesting to download the file from a file server; a statistical unit, It is used to count the number of terminals in the broadcast domain that are downloading the file from the file server according to the response message; the comparison unit is used to compare the number of terminals that are downloading from the file server in the broadcast domain counted by the statistics unit The size of the terminal quantity of the file and the maximum terminal quantity allowed to be downloaded concurrently from the file server in the broadcast domain; the processing unit is used for the comparison result of the comparison unit to be that the file is being downloaded from the file server in the broadcast domain When the number of terminals of the file is greater than the maximum number of terminals allowed to download concurrently from the file server in the broadcast domain, the connection to the file server to download the file is given up, or the result of the comparison used by the comparison unit is that in the broadcast domain When the number of terminals being downloaded is less than or equal to the maximum number of terminals allowed to download concurrently from the file server in the broadcast domain, according to the maximum number of terminals allowed to download concurrently from the file server in the broadcast domain and the number of terminals currently downloading from the file server in the broadcast domain The difference in the number of downloaded terminals determines whether to connect to the file server to download the file.

In the embodiment of the present invention, by knowing the download status of the terminal in the broadcast domain, the terminal decides when the terminal can connect to the file server, which not only has high accuracy in controlling when to request downloading, but also minimizes or avoids multiple impact on the file server when two terminals simultaneously initiate download requests to the file server, and the method provided in the embodiment of the present invention can support multiple external servers.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained based on these drawings without any creative effort.

FIG. 1 is a schematic flowchart of a method for a terminal requesting to download resources provided in Embodiment 1 of the present invention;

FIG. 2 is a schematic flowchart of a method for a terminal requesting to download resources provided in Embodiment 2 of the present invention;

Fig. 3 is a schematic diagram of the basic flow of a method for judging whether to connect to a file server to download a file provided by an embodiment of the present invention;

FIG. 4 is a schematic diagram of a basic logical structure of a terminal provided by an embodiment of the present invention;

FIG. 5 is a schematic diagram of another basic logical structure of a terminal provided by an embodiment of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to FIG. 1 , which is a schematic flowchart of a method for a terminal requesting to download resources provided by Embodiment 1 of the present invention, which mainly includes:

S101. Broadcast a consultation message to a broadcast domain, where the consultation message is used to consult whether other terminals in the broadcast domain are downloading or requesting to download the file from a file server.

The subject of execution of the method for a terminal to request resource download provided in Embodiment 1 of the present invention may be a terminal. In the embodiment of the present invention, several terminals are connected to the gateway, and the gateway is connected to file servers such as File Transfer Protocol (FTP, File Transfer Protocol) or Hypertext Transfer Protocol (HTTP, HyperTextTransfer Protocol) through the network, and the gateway, some terminals and their The connection constitutes a broadcast domain, and any terminal in the broadcast domain broadcasts a consultation message to the broadcast domain, and other terminals can receive and send a response message of the consultation message to the terminal. For example, the terminal T1 broadcasts a consultation message to the broadcast domain, and other terminals in the broadcast domain where the terminal T1 is located can receive the consultation message.

S102. Receive a response message of the consultation message, and determine whether to connect to the file server to download the file according to the status of downloading files from the file server by other terminals in the broadcast domain reflected in the response message.

As mentioned above, after any terminal in the broadcast domain sends a consultation message, other terminals can receive and send a response message of the consultation message to the terminal. For example, the current terminal T ₁ sends a consultation message D _m requesting to download a file from a file server to the broadcast domain, and another terminal T ₂ in the broadcast domain receives the consultation message D _m . If the terminal _T2 is executing the file downloading task, it will send a response message ACK1 (D _m ) to the consultation message D _m : downloading message to indicate to the current terminal _T1 that the current status of the terminal _T2 is "is downloading from the file download file from the server”; if the terminal T ₂ has sent an advisory message requesting to download the file from the file server to the broadcast domain, and is waiting for the response of the file server, _then an answer message ACK2(D _m ): requesting a download message to indicate to the current terminal _T1 that the current status of the terminal _T2 is "requesting to download a file from the file server".

In the embodiment of the present invention, there is another situation: when the current terminal T ₁ sends a consultation message D _m requesting to download a file from the file server to the broadcast domain, the terminal T ₂ receives the consultation message D _m , but the terminal T ₂ neither executes the file download task nor sends a consultation message to the broadcast domain and is waiting for a response from the file server. At this time, terminal T ₂ does not make any response. But after a period of time, terminal T ₂ requests to download files from the file server, and at this time terminal T ₂ will also send a message of "requesting to download a message" to the broadcast domain to indicate that the current status of terminal T ₂ is "requesting to download from a file server". Download file from server". Apparently, when the current terminal _T1 receives the above-mentioned message, although the message is not a response message to the consultation message _Dm , it can still know that the terminal _T2 is "requesting to download a file from the file server".

In the embodiment of the present invention, by knowing the download status of the terminal in the broadcast domain, the terminal decides when the terminal will connect to the file server without causing impact on the server. To minimize or avoid the impact on the file server when multiple terminals initiate download requests to the file server at the same time, and the method provided by the embodiment of the present invention can support various external servers.

Please refer to FIG. 2 , which is a schematic flowchart of a method for a terminal requesting to download resources provided by Embodiment 2 of the present invention, which mainly includes steps:

S201. Broadcast a consultation message to a broadcast domain, where the consultation message is used to consult the number of terminals that are downloading a file from a file server.

S202. Receive a response message of the consultation message, and count the number of terminals in the broadcast domain that are downloading the file from the file server according to the response message.

After any terminal in the broadcast domain sends the consultation message, other terminals can receive and send the response message of the consultation message to the terminal. For example, the current terminal T ₁ sends a consultation message D _m requesting to download a file from a file server to the broadcast domain, and another terminal T ₂ in the broadcast domain receives the consultation message D _m . If the terminal T ₂ is executing the file download task, it sends a response message ACK1 (D _m ): downloading message to the current terminal T 1 to indicate to the current terminal T ₁ that the current status _of the terminal T ₂ is "is downloading from the file. download file from the server”; if the terminal T ₂ has sent an advisory message requesting to download the file from the file server to the broadcast domain, and is waiting for the response of the file server, _then an answer message ACK2(D _m ): requesting a download message to indicate to the current terminal _T1 that the current status of the terminal _T2 is "requesting to download a file from the file server".

In the embodiment of the present invention, there is another situation: when the current terminal T ₁ sends a consultation message D _m requesting to download a file from the file server to the broadcast domain, the terminal T ₂ receives the consultation message D _m , but the terminal T ₂ neither executes the file download task nor sends a consultation message to the broadcast domain and is waiting for a response from the file server. At this time, terminal T ₂ does not make any response. But after a period of time, terminal T ₂ requests to download files from the file server, and at this time terminal T ₂ will also send a message of "requesting to download a message" to the broadcast domain to indicate that the current status of terminal T ₂ is "requesting to download from a file server". Download file from server". Obviously, when the current terminal _T1 receives the above-mentioned message, although the message is not a response message of the consultation message _Dm , it can still know that the terminal _T2 is "requesting to download a file from the file server"

After the current terminal T ₁ receives the response message of the consultation message D _m , it can count the number of downloading terminals T _D in the broadcast domain according to the response message. For example, the current terminal T ₁ receives 10 "downloading"message", the current terminal T ₁ counts the number of downloading terminals in the broadcast domain as 10.

S203. Compare the number T _D of downloading terminals in the broadcast domain with the maximum number M _t of terminals allowed to download concurrently from the file server in the broadcast domain.

The maximum number of terminals M _t allowed to download concurrently from the file server in the broadcast domain can be configured on the server side, and then sent to all terminals in the broadcast domain, including the current terminal T ₁ .

S204. If the number T _D of downloading terminals in the broadcast domain is greater than the maximum number M _t of terminals allowed to download concurrently from the file server in the broadcast domain, the current terminal T ₁ gives up connecting to the file server to download files.

This is because, when the number _T of downloading terminals in the broadcast domain has been greater than the maximum number of terminals M _t allowed to download concurrently from the file server in the broadcast domain, it indicates that the number of terminals connected to the file server to download files has reached its capacity. It is impossible or inappropriate to accept download requests from other terminals due to the limited number of terminals for downloading. The current terminal T ₁ should give up connecting to the file server to download files.

S205, if the number T _D of downloading terminals in the broadcast domain is less than the maximum number M _t of terminals allowed to download concurrently from the file server in the broadcast domain, then the current terminal according to the maximum number M _t of terminals allowed to download concurrently from the file server in the broadcast domain and The difference in the number T _D of downloading terminals in the broadcast domain determines whether to connect to the file server to download the file.

If the number T _D of downloading terminals in the broadcast domain is less than the maximum number M _t of terminals allowed to download concurrently from the file server in the broadcast domain, it indicates that the current terminal T ₁ may also be connected to the file server to download files. Under the above circumstances, in the embodiment of the present invention, the current terminal _T1 can be based on the difference ⊿ between the maximum number of terminals M _t allowed to download concurrently from the file server in the broadcast domain and the number of terminals T _D being downloaded in the broadcast domain MT (= M _t - T _D ) decides whether to connect to the file server to download files.

For example, for the above-mentioned difference ⊿MT, a method for judging whether to connect to a file server to download a file for the current terminal _T1 is shown in Figure 3, including steps:

S301. Count the number T _R of terminals in the broadcast domain that are requesting to download files from the file server according to the response message.

According to the number of messages of the type "requesting download messages" in the response messages, the number T _R of terminals (including the current terminal T ₁ ) that are requesting downloads in the broadcast domain is counted. For example, if the current terminal T ₁ receives 15 response messages such as "requesting download messages", the current terminal T ₁ counts 15 terminals in the broadcast domain that are requesting download.

S302, if the above-mentioned number T _R of terminals requesting downloading is less than or equal to the difference ⊿MT between the maximum number M _t of terminals allowed to download concurrently from the file server in the broadcast domain and the number T _D of downloading terminals in the broadcast domain, then the current The terminal _T1 determines to connect to the file server to download the file.

If the above-mentioned number T _R of terminals requesting downloading is less than or equal to the difference ⊿MT between the maximum number M _t of terminals allowed to download concurrently from the file server in the broadcast domain and the number T _D of downloading terminals in the broadcast domain, it indicates that the file server The limit number of terminals for concurrent download has not yet been reached, and the terminal is allowed to connect to the file server to download files. Therefore, the current terminal _T1 determines to connect to the file server to download files, and initiates a connection request to the file server.

S303, if the above-mentioned number T _R of terminals requesting download is greater than the difference ⊿MT between the maximum number M _t of terminals allowed to download concurrently from the file server in the broadcast domain and the number T _D of terminals downloading in the broadcast domain, then further, Prioritize the T _R terminals that are requesting downloading including the current terminal T ₁ .

In this embodiment, the prioritization rule for the T _R terminals requesting download including the current terminal _T1 may be as follows: the serial number P _s of the prioritization increases from 1 according to the priority. For example, the serial number P _s of the terminal with the highest priority is set to 1, followed by 2, followed by 3, ...;

S304, if after prioritization, the sequence number P _s of the current terminal T ₁ prioritization is less than or equal to the maximum number M _t of terminals allowed to download concurrently from the file server in the broadcast domain and the number T _D of terminals being downloaded in the broadcast domain The difference ⊿MT of , indicates that the current terminal T ₁ can still connect to the file server, therefore, the current terminal T ₁ determines to connect to the file server to download files.

S305, if after the priority sorting, the serial number P _s of the current terminal T ₁ priority sorting is greater than the difference between the maximum number M _t of terminals allowed to download concurrently from the file server in the broadcast domain and the number T _D of terminals being downloaded in the broadcast domain A value of ⊿MT indicates that the current terminal _T1 cannot connect to the file server. Therefore, the current terminal T1 needs to wait for a period of time before trying to connect to the file server to download files.

In the embodiment of the present invention, since the current terminal is aware of the download status of other terminals, it can decide when it can connect to the file server. Therefore, it is avoided to the greatest extent when multiple terminals simultaneously initiate download requests to the file server in the prior art. Impact on file servers.

It can be understood that, compared to other terminals in the broadcast domain, such as terminal _T2 , the current terminal _T1 is also a "other terminal", therefore, the current terminal _T1 also responds to the consultation message sent by other terminals, and sends a message to other terminals. The terminal sends a response message to indicate to other terminals that the current terminal T ₁ is downloading a file or is requesting to download a file.

It can be seen from the above embodiments that by knowing the download status of the terminal in the broadcast domain, the terminal decides when the terminal can connect to the file server, which not only has high accuracy in controlling when to download, but also minimizes or The impact on the file server caused by multiple terminals simultaneously initiating download requests to the file server at the same time is avoided, and the method provided by the embodiment of the present invention can support various external servers. At the same time, since the broadcast domain is composed of gateways, terminals and their connections in the embodiments of the present invention, the method provided in the embodiments of the present invention can limit the number of concurrent connections in units of subnets, thereby controlling the network bandwidth occupied by terminals in a certain area The size is especially suitable for networks with many branches and tight bandwidth resources.

Please refer to FIG. 4 , which is a schematic diagram of a basic logical structure of a terminal provided by an embodiment of the present invention. For ease of description, only parts related to the embodiments of the present invention are shown. The functional modules/units included in the terminal may be hardware modules/units, software modules/units, or modules/units combining software and hardware, which is not limited in this embodiment of the present invention. Terminals include:

The sending module 41 is configured to send a consultation message to the broadcast domain, which consults whether other terminals in the broadcast domain are downloading or requesting to download the file from the file server;

The download judgment module 42 is used to receive the response message of the consulting message sent by the sending module 41, and determine whether to connect to the file server to download the file according to the status of other terminals in the broadcast domain reflected in the response message downloading the file from the file server, Download judgment module 42 comprises:

A statistics unit 421, configured to count the number of terminals being downloaded in the broadcast domain according to the response message received by the download decision module 42;

The comparison unit 422 is used to compare the number of terminals being downloaded in the broadcast domain counted by the statistics unit 421 with the maximum number of terminals allowed to download concurrently from the file server in the broadcast domain obtained by the threshold acquisition module 43;

The processing unit 423 is used for comparison by the comparison unit 422. When the number of downloading terminals in the broadcast domain is greater than the maximum number of terminals allowed to download concurrently from the file server in the broadcast domain, the current terminal gives up connecting to the file server to download files.

In this embodiment, the processing unit 423 can also be used to compare the result of the comparison unit 422. When the number of terminals being downloaded in the broadcast domain is less than or equal to the maximum number of terminals allowed to download concurrently from the file server in the broadcast domain, the current The terminal determines whether to connect to the file server to download the file according to the difference between the maximum number of terminals allowed to download concurrently from the file server in the broadcast domain and the number of downloading terminals in the broadcast domain.

In this way, if the comparison result of the comparison unit 422 is that the number of terminals being downloaded in the broadcast domain is less than or equal to the maximum number of terminals allowed to download concurrently from the file server in the broadcast domain, the processing unit 423 further includes:

The first statistics subunit 4231 is configured to count the number of terminals requesting downloading in the broadcast domain according to the response message received by the download decision module 42;

The first judging subunit 4233 is configured to determine the difference between the maximum number of terminals allowed to download concurrently from the file server in the broadcast domain and the number of downloading terminals in the broadcast domain when the number of terminals requesting downloading is less than or equal to the difference When the value is set, it is determined to connect to the file server to download the file.

As another embodiment of the terminal in the present invention, it is shown in FIG. 5 . In this embodiment, the processing unit 423 may also include:

The second decision subunit 5233 is configured to be used when the number of terminals requesting downloading is greater than the difference between the maximum number of terminals allowed to download concurrently from the file server in the broadcast domain and the number of terminals being downloaded in the broadcast domain , performing priority sorting on the terminal requesting downloading in the broadcast domain and itself, the sequence number Ps of the priority sequence is incremented from 1 according to the size of the priority, after the priority sorting, the sequence number of the priority sequence If Ps is less than or equal to the difference between the maximum number of terminals allowed to download concurrently from the file server in the broadcast domain and the number of downloading terminals in the broadcast domain, it is determined to connect to the file server to download the file.

Because in the embodiment of the present invention, the terminal can be connected with the gateway, and the gateway is connected to a file server such as FTP or HTTP through the network, and the gateway, several terminals and their connections constitute a broadcast domain, so it can be understood that, relative to the broadcast domain For other terminals, such as terminal T ₂ , the current terminal T ₁ is also "other terminal", and the current terminal T ₁ also responds to the consultation message sent from other terminals, and sends a response message to other terminals to indicate to other terminals that the current Terminal _T1 is downloading a file or is requesting to download a file. That is to say, in the embodiment of the present invention shown in FIG. 4 and FIG. 5, the terminal may also include a receiving module 44 and a response module 43, which are used to respond to the consultation message sent from other terminals, and send a response message to other terminals, The response message indicates that the current terminal is downloading a file or is requesting to download a file.

It should be noted that the information interaction and execution process between the above-mentioned equipment modules/units are based on the same concept as the method embodiment of the present invention, and the specific content can refer to the description in the method embodiment of the present invention, and will not be repeated here. repeat.

It can be seen from the above embodiments that by knowing the download status of the terminal in the broadcast domain, the terminal decides when the terminal can connect to the file server, which not only has high accuracy in controlling when to download, but also minimizes or In the prior art, the impact on the file server caused by multiple terminals simultaneously initiating download requests to the file server at the same time is avoided, and the embodiments provided by the present invention can support various external servers. At the same time, since the terminal is connected to the gateway in the embodiment of the present invention to form a broadcast domain, therefore, after the terminal and the gateway in the embodiment of the present invention are connected to form a broadcast domain, the number of concurrent connections can be limited in units of subnets, thereby controlling a certain area The terminal occupies the size of the network bandwidth, which is especially suitable for the network with many branches and tight bandwidth resources.

Those of ordinary skill in the art can understand that all or part of the steps in the various methods of the above-mentioned embodiments can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium, and the storage medium can include: Read Only Memory (ROM, Read Only Memory), Random Access Memory (RAM, Random Access Memory), disk or CD, etc.

The method for requesting resources downloaded by a terminal provided by the embodiment of the present invention and a terminal are described above in detail. In this paper, specific examples are used to illustrate the principle and implementation of the present invention. The description of the above embodiment is only for helping Understand the method of the present invention and its core idea; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation and scope of application. In summary, the content of this specification is not It should be understood as a limitation of the present invention.

Claims (8)

1. the method for a terminal request downloaded resources is characterized in that, comprising:

Terminal T ₁Seek advice from message to broadcast domain broadcasting, whether the other-end that described consulting message is used in the described broadcast domain of consulting downloads or asks to download file to be downloaded from file server;

Described terminal T ₁Receive the response message of described consulting message, add up the terminal quantity of downloading described file in the described broadcast domain from described file server according to described response message;

If download the terminal quantity of described file greater than the maximum terminal quantity that allows in the described broadcast domain from the concurrent download of described file server, then described terminal T from described file server described in the described broadcast domain ₁Abandon being connected to described file server and download file;

If the terminal quantity of downloading in the described broadcast domain is less than or equal to the maximum terminal quantity that allows in the described broadcast domain from the concurrent download of described file server, described terminal T ₁Whether the difference judgement according to the terminal quantity that allows in the described broadcast domain downloading from the maximum terminal quantity of the concurrent download of described file server and described broadcast domain is connected to described file server download file.

2. method according to claim 1 is characterized in that, described terminal T ₁Adjudicate according to the difference of the terminal quantity that allows in the described broadcast domain from the maximum terminal quantity of the concurrent download of described file server and described broadcast domain, downloading and whether to be connected to described file server download file and to draw together:

Add up terminal quantity from the described broadcast domain to described file server requests that download described file in according to described response message;

If described terminal quantity of asking to download is less than or equal to the difference that allows the terminal quantity downloaded in the described broadcast domain from the maximum terminal quantity of the concurrent download of described file server and described broadcast domain, then determine to be connected to described file server download file.

3. method according to claim 2 is characterized in that, also comprises:

If the described terminal quantity downloaded of asking is greater than the difference of the terminal quantity that allows in the described broadcast domain downloading from the maximum terminal quantity of the concurrent download of described file server and described broadcast domain, then to the terminal of asking in the described broadcast domain to download and self carry out prioritization;

If the sequence number of self prioritization is less than or equal to the difference that allows the terminal quantity downloaded in the described broadcast domain from the maximum terminal quantity of the concurrent download of described file server and described broadcast domain, then determine to be connected to described file server download file.

4. according to any described method of claim 1 to 3, it is characterized in that, also comprise:

Reception is from the consulting message of other-end in the described broadcast domain;

Send the response message of described consulting message to described other-end, described response message shows to be downloaded file or is asking to download file.

5. a terminal is characterized in that, described terminal comprises:

Sending module is used for to broadcast domain broadcasting consulting message, and whether described consulting message is downloaded or the described file of request download from file server for the other-end in the described broadcast domain of consulting;

Statistic unit is used for adding up described broadcast domain is being downloaded described file from described file server terminal quantity according to response message;

Permission is from the size of the maximum terminal quantity of the concurrent download of file server in the terminal quantity that comparing unit, the described broadcast domain that is used for comparative statistics unit statistics are being downloaded described file from described file server and the described broadcast domain;

Processing unit, the terminal quantity that the result who is used for described comparing unit comparison is downloading described file from described file server for described broadcast domain is during greater than the maximum terminal quantity that allows in the described broadcast domain from the concurrent download of described file server, abandon being connected to described file server and download file, when perhaps being used for terminal quantity that the result of described comparing unit comparison downloading for described broadcast domain and being less than or equal to the maximum terminal quantity that allows in the described broadcast domain from the concurrent download of described file server, adjudicate whether be connected to described file server download file according to the difference of the terminal quantity that allows in the described broadcast domain from the maximum terminal quantity of the concurrent download of described file server and described broadcast domain, downloading.

6. terminal according to claim 5 is characterized in that, described processing unit comprises:

The first statistics subelement is used for adding up described broadcast domain is being downloaded described file from described file server requests terminal quantity according to described response message;

The first judgement subelement, be used for when described terminal quantity of asking to download is less than or equal to the difference that allows the terminal quantity downloaded from maximum terminal quantity and the described broadcast domain of the concurrent download of described file server in the described broadcast domain, determining to be connected to described file server download file.

7. terminal according to claim 6 is characterized in that, also comprises:

The second judgement subelement, be used for described when asking the difference of the terminal quantity that the terminal quantity downloaded allows in greater than described broadcast domain and downloading from maximum terminal quantity and the described broadcast domain of the concurrent download of described file server, to the terminal of asking in the described broadcast domain to download and self carry out prioritization, the sequence number Ps of described prioritization increases progressively from 1 according to the size of priority, if through after the prioritization, the sequence number Ps of the prioritization of self is less than or equal to the difference that allows the terminal quantity downloaded in the described broadcast domain from the maximum terminal quantity of the concurrent download of described file server and described broadcast domain, then determines to be connected to described file server download file.

8. according to any described terminal of claim 5 to 7, it is characterized in that described terminal also comprises:

Receiver module is used for receiving the consulting message from described broadcast domain other-end;

Respond module, for the response message that sends described consulting message to described other-end, described response message shows to be downloaded file or is asking to download file.

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