CN101635678A - Method and system for controlling P2P terminal flow - Google Patents
Method and system for controlling P2P terminal flow Download PDFInfo
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Abstract
The invention discloses a method and a system for controlling P2P terminal flow. The method comprises the following steps: setting the priority of a data service; after receiving the data service by a terminal, adding the data service into a waiting process queue according to the priority of the data service and preferentially processing the data service in the waiting process queue. In the invention, the flow of up-down links is controlled through the PSP terminal to avoid causing a flow attack on the terminal to further generate the congestion of a network caused by transmitting excessive flow externally and enable the terminal to use the resources rationally and effectively use a broadband, thereby fully bringing the processing capability of the terminal into play.
Description
Technical field
The present invention relates to the method and system of a kind of P2P terminal flow control, more particularly, is the method and system of during a kind of P2P uses P2P user terminal up-downgoing flow being controlled.
Background technology
P2P (Peer to Peer, the partner is to the partner) technology is a kind of reciprocity internet technique, the status of each node all is reciprocity in the P2P network, be server end be again client, each node is also providing service for other node when other node of enjoyment provides service.
Because the P2P technology has made full use of abilities such as the computing capability of each node and shared ability, thereby there is great advantage in it at aspects such as autgmentability, construction costs.In recent years, various internet, applications development based on the P2P technology such as file-sharing, Streaming Media are swift and violent, the P2P downloading flow has occupied more than 70% of Global Internet total data flow, the P2P technology has become the important media delivery technology of broadband internet, has also occurred many P2P Video Applications websites of realizing based on the P2P technology on the internet.
In the P2P network; the P2P terminal is owing to be client or service end promptly; and because program request in the P2P business and the requirement of live real-time are very high; and the terminal processing capacity of P2P is subjected to a lot of restrictions; especially be applied to mobile network's P2P terminal software; be subjected to the restriction of the disposal ability of portable terminal and bandwidth more; so consider the P2P terminal is carried out the needs that terminal P2P business is not only in processing controls; also be the needs of terminal oneself safety protection; therefore; be necessary the control of loading of P2P terminal flow congestion occurred to avoid terminal.
Summary of the invention
The technical problem to be solved in the present invention provides the method and system of a kind of P2P terminal flow control, and the up-downgoing flow of terminal is controlled.
In order to address the above problem, the invention provides the method for a kind of P2P terminal flow control, comprising:
The priority of data service is set;
After terminal receives described data service, according to the priority of described data service processing queue is waited in its adding, and preferentially the data service in the described wait processing queue is handled.
Further, said method also can have following characteristics:
Described priority according to described data service adds it waits for that processing queue is meant:
After described terminal receives described data service, judge whether described wait processing queue is full: if less than, then the described data service that receives is added described wait processing queue; If it is full, whether the priority of judging the described data service that receives again is lower than the data service in the described wait processing queue, if, then the described data service that receives is abandoned, the described data service that receives is added described wait processing queue otherwise replace the lower data service of described wait processing queue medium priority.
Further, said method also can have following characteristics:
Described data service comprises that request of data and packet receive;
Described preferential data service in the described wait processing queue is handled be meant, the user of preferential request of data correspondence in described wait processing queue sends packet or preferentially receives packet in the described wait processing queue.
Further, said method also can have following characteristics:
The up-downgoing available bandwidth and the disposal ability thereof of the size of described wait processing queue and described P2P terminal are complementary.
Further, said method also can have following characteristics:
Described up-downgoing available bandwidth sends the response of data by real-time monitoring and the speed of reception data is determined;
For the mobile network, consult request by the timed sending upstream and downstream bandwidth and determine with base station negotiate.
Further, said method also can have following characteristics:
Described method is provided with the priority of described data service according to wherein a kind of or its combination in any of following information:
Service priority requires height that the height of priority is set according to real-time;
Signaling priority is provided with the height of priority according to the function desirability of signaling;
Data priority is according to whether entering the height that urgent window is provided with priority;
User Priority is according to credit height or whether the height of priority is set in buddy list.
Further, said method also can have following characteristics:
When described method sends packet the user of the request of data correspondence in described wait processing queue, the packet to be sent of the request of data correspondence in the described wait processing queue is stored to buffer area, and judge whether current bandwidth is available, if bandwidth can be used, then send packet to described user, otherwise, but treat that the bandwidth time spent sends packet to described user.
The present invention also provides the system of a kind of P2P terminal flow control, is applied to described P2P terminal, comprises that continuous priority is provided with module and data processing module, wherein:
Described priority is provided with module, is used to be provided with request of data and priority of data packets, and described precedence information is sent to described data processing module;
Described data processing module after being used for after receiving request of data or receiving packet, adds it according to described request of data or described priority of data packets and to wait for processing queue; And the user of the request of data correspondence in described wait processing queue sends packet or receives packet in the described wait processing queue.。
Further, described data processing module adds the wait processing queue with described request of data or packet with it in the following way:
After receiving request of data or packet, judge and wait for whether processing queue is full, if less than, then described request of data that receives or packet are added described wait processing queue; If it is full, judge again whether described request of data that receives or priority of data packets are lower than request of data or the packet in the described wait processing queue, if, then directly with described request of data or data packet discarding, otherwise, replace lower request of data of described wait processing queue medium priority or packet described request of data that receives or packet added described wait processing queue.
Further, described system also comprises the upstream and downstream bandwidth monitoring modular that links to each other with described data processing module, wherein:
Described upstream and downstream bandwidth monitoring modular, be used for sending the response of data and receiving the speed of data or consult request for the mobile network by the timed sending upstream and downstream bandwidth and determine the up-downgoing available bandwidth of described P2P terminal, and the described up-downgoing available bandwidth that will determine sends to described data processing module with base station negotiate by real-time monitoring;
Described data processing module also is used for, when the user of the request of data correspondence in described wait processing queue sends packet, judge according to described up-downgoing available bandwidth whether bandwidth is available, if bandwidth can be used, then send packet, but otherwise treat that the bandwidth time spent sends packet to described user to described user.
Further, described priority is provided with module and according to wherein a kind of or its combination in any of following information described request of data and priority of data packets is set:
Service priority requires height that the height of priority is set according to real-time;
Signaling priority is provided with the height of priority according to the function desirability of signaling;
Data priority is according to whether entering the height that urgent window is provided with priority;
User Priority is according to credit height or whether the height of priority is set in buddy list.
Further, described priority is provided with module when the priority of described request of data is set, and the priority of the request of data that other P2P terminals send in the P2P network is set to height.
The present invention controls the flow of up-downgoing by the P2P terminal, and avoiding that terminal is caused flow attack, and then it is congested etc. to cause that the too much flow of external transmission causes network.Adopt the inventive method and system, terminal can make full use of inner resource and effectively utilize bandwidth, makes terminal can rationally utilize own resource, effectively the maximum disposal ability of performance.Therefore terminal is realized great commercial value.
Description of drawings
Fig. 1 is the composition schematic diagram of P2P terminal flow control system of the present invention;
Fig. 2 be the embodiment of the invention terminal is received the process flow figure of message;
Fig. 3 be the embodiment of the invention terminal is received the process flow figure of packet.
Embodiment
Below in conjunction with drawings and Examples technical scheme of the present invention is described in detail.
The main thought of the method for P2P terminal of the present invention flow control is: P2P terminal uplink and downlink flow is all controlled, guaranteed that uplink traffic and the up available bandwidth of terminal are complementary, the disposal ability of downlink traffic and terminal is complementary.
Particularly, the present invention mainly adopts following technical scheme:
The priority of data service is set;
The P2P terminal is judged and is waited for whether processing queue is full after receiving described data service: if less than, then the described data service that receives is added described wait processing queue; If it is full, whether the priority of judging the described data service that receives again is lower than the data service in the described wait processing queue, if, then the described data service that receives is abandoned, the described data service that receives is added described wait processing queue otherwise replace the lower data service of described wait processing queue medium priority;
Described P2P terminal is preferentially handled the data service in the described wait processing queue.
Wherein, above-mentioned data service comprises request of data and packet;
Data service in the pending formation of described preferential equity is handled and is meant: preferentially the user of the request of data correspondence in waiting for processing queue sends packet or the preferential packet of waiting in the processing queue that receives.
Wherein, the division of the priority of data service can be finished setting automatically by system, also can carry out artificial appointment.As being arranged to: the initial priority of all request of data or packet is consistent, be a default value, have relatively high expectations, perhaps need the request of data or the packet of emergency treatment for some real-time, can artificially dispose its priority, make its priority be higher than other.
Wherein, described request of data or priority of data packets information comprise wherein a kind of or its combination in any of following precedence information:
Service priority, being meant according to real-time requires height that the height of data Request Priority is provided with, for the demanding business of real-time, the for example signaling of program request and live broadcast service and request of data, need preferentially handle in the very first time, do not abandon as far as possible, therefore, priority is set for high; For the less demanding business of real-time, priority is set to low;
Signaling priority, signaling is carried out the setting of priority according to the degree that function needs, for example at first need to consider not influence the business of terminal as far as possible, so the request of data from other terminal can be arranged to high-priority message, and the status signaling of other terminal be set to low priority message alternately.The precedence information of signaling can pass through user terminal software, also can pass through P2P system side (if by the P2P system side, then being configured by P2P system side transmission information notice P2P terminal software), and user terminal is provided with.
Data priority, for entering urgent window, the data that will play need preferentially be handled at once, and the priority that enters the data of urgent window is higher than the data of non-emergent window;
User Priority is meant the user is carried out credit tubulation reason or buddy list is set, and for high credit or the request of good friend's user's data, its priority is set for high, or the like.
In addition, in such scheme,, be after handling the request of data of high priority for the request of data of low priority, during free disposal ability, handle again.If the system loading height then can select to abandon in proportion the request of data of low priority, to guarantee the normal operation of terminal.
In addition, the up-downgoing available bandwidth and the disposal ability thereof of the size of described wait processing queue and described P2P terminal are complementary.
Waiting under the full situation of processing queue that if the message of the high priority of newly arriving ratio is waited for signaling or data priority height in the processing queue, then the signaling of high priority signaling or data replacement low priority or data are to waiting in the processing queue.
Below in conjunction with accompanying drawing implementation procedure of the present invention is further specified.
Fig. 1 shows a kind of P2P terminal flow control system of the embodiment of the invention, is applied to the P2P terminal, and it mainly comprises:
Priority is provided with module 100, is used to be provided with request of data and priority of data packets, and described request of data and priority of data packets are sent to described data processing module 120;
Upstream and downstream bandwidth monitoring modular 110, be used for by real-time monitoring send the response of data and receive the speed of data, for the mobile network, also can consult request and determine the up-downgoing available bandwidth of described P2P terminal, and the described up-downgoing available bandwidth that will determine is sent to described data processing module 120 with base station negotiate by the timed sending upstream and downstream bandwidth;
Particularly,
Priority is provided with module 100, is used for according to wherein a kind of or its combination in any of following information request of data and priority of data packets being set:
Service priority requires height that the height of priority is set according to real-time;
Signaling priority is provided with the height of priority according to the function desirability of signaling;
Data priority is according to whether entering the height that urgent window is provided with priority;
User Priority is according to credit height or whether the height of priority is set in buddy list.
When data processing module 120 sends packet the terminal use of the request of data correspondence in described wait processing queue, judge bandwidth conditions according to the described up-downgoing available bandwidth that upstream and downstream bandwidth monitoring modular 110 sends: if bandwidth can be used, then send packet to described user in regular turn, but otherwise treat that the bandwidth time spent sends packet to described user.
Wherein, upstream and downstream bandwidth monitoring modular 110, can estimate upstream and downstream bandwidth by the response of real-time monitoring transmission signaling and data and the speed of reception data, for the mobile network, also can consult to ask base station side by the timed sending upstream and downstream bandwidth, consult to determine upstream and downstream bandwidth by one or many with the base station, reserve the bandwidth that other service needed is used, can obtain the available upstream and downstream bandwidth that terminal P2P uses.
Fig. 2 be the embodiment of the invention the P2P terminal is received the process chart of data request information, its idiographic flow comprises the steps:
200, the P2P terminal receives and comes from the data request information that the P2P network sends, and these message comprise operation management platform, resource management server, and the message that sends of network element such as other P2P terminal;
210, whether the P2P terminal judges is the data request information from other terminal use, if then execution in step 220, otherwise execution in step 250;
220, judge whether User Priority is high, if then execution in step 240, otherwise execution in step 230;
Wherein the judgement of User Priority is meant: judge whether the user belongs to the user in high credit rating user or this terminal use buddy list;
230, judge whether service priority is high, if then execution in step 240, otherwise execution in step 250;
Wherein, the service priority height is meant the demanding request of data of real-time, and than higher, its priority is apparently higher than downloading business as the real-time of program request and live broadcast service.
240, judge this moment whether available upstream bandwidth is arranged, if having, then execution in step 260, otherwise, execution in step 270;
Wherein, about the monitoring of available bandwidth,, can estimate upstream and downstream bandwidth by the response of real-time monitoring transmission signaling and data and the speed of reception data according to the difference that terminal realizes; For the mobile network, also can consult to ask base station side by the timed sending upstream and downstream bandwidth, consult to determine upstream and downstream bandwidth by one or many with the base station, reserve the bandwidth that other service needed is used, can obtain the available upstream and downstream bandwidth that terminal is used to P2P.
In addition, in other embodiments of the invention, this step can also develop into judges to wait for whether processing queue is full: promptly according to system's available bandwidth, wait for that the request of data in the processing queue is set to be stored in buffer area, but send or treat that bandwidth can be with promptly sending in the bandwidth time spent, the request of data of all the other low priorities then directly abandons.
250, handle (priority of in issuing the signaling of terminal, carrying signaling) by the signaling Request Priority that operation management platform, resource management server preestablish or dispose; Or terminal software is classified for these signalings and according to the function needs priority (method of setting and terminal set the signaling that other system terminal comes priority approach similar) is set, request message for low priority is after handling the message of high priority, if also You Kong disposal ability is carried out the processing of low priority message again.If the system loading height, then the message of low priority can be selected to abandon in proportion, to guarantee the normal operation of terminal;
260, if having available upstream bandwidth this moment,, send the packet of physical block to this user then according to the user's data request;
270, if there is not available upstream bandwidth this moment,, treat that bandwidth can be with promptly sending then at buffer area storage packet.
Like this, the request of data that just can guarantee high-priority users is preferentially sent in the very first time after bandwidth can be used.
Processed flow process among this embodiment is only done to be not limited to above implementation in actual applications with reference.In other embodiments of the invention, can the selection of configuration service priority, any one or a few combination among signaling priority, data priority and the User Priority uses, can also be arranged in order or use at random for each priority factors in the selected combination.
Fig. 3 be the embodiment of the invention terminal is received the flow chart of the processing of packet, idiographic flow comprises the steps:
300, the P2P terminal receives and comes from other terminal or the shared packet of other data source;
310, the P2P terminal judges waits for whether processing queue is full, if then execution in step 320, otherwise execution in step 330;
320, judge whether this packet data type is the data that urgent window is badly in need of, if then execution in step 330, otherwise execution in step 340;
330, these data are inserted the wait processing queue, if formation is full, then replace the packet of other non-emergent window in formation with this packet;
340, abandon this packet.
In sum, the present invention carries out priority to data request/packet according to factors such as real-time, importance and divides, the P2P terminal is carried out priority treatment in conjunction with precedence information to the request of data/packet of the high priority that receives, request of data/the packet of low priority is then treated to carry out respective handling again to the finishing dealing with of high priority; Simultaneously, load condition according to network availability bandwidth and terminal is provided with the wait processing queue, the request of data of high priority/packet adds waits for processing queue, under the full situation of queue, data request/packet is taked to abandon in proportion, avoid terminal is caused flow attack, and then cause that the too much flow of external transmission causes congested to network.
Claims (12)
1, the method for a kind of P2P terminal flow control is characterized in that, comprising:
The priority of data service is set;
After terminal receives described data service, according to the priority of described data service processing queue is waited in its adding, and preferentially the data service in the described wait processing queue is handled.
2, the method for claim 1 is characterized in that,
Described priority according to described data service adds it waits for that processing queue is meant:
After described terminal receives described data service, judge whether described wait processing queue is full: if less than, then the described data service that receives is added described wait processing queue; If it is full, whether the priority of judging the described data service that receives again is lower than the data service in the described wait processing queue, if, then the described data service that receives is abandoned, the described data service that receives is added described wait processing queue otherwise replace the lower data service of described wait processing queue medium priority.
3, method as claimed in claim 1 or 2 is characterized in that,
Described data service comprises that request of data and packet receive;
Described preferential data service in the described wait processing queue is handled be meant, the user of preferential request of data correspondence in described wait processing queue sends packet or preferentially receives packet in the described wait processing queue.
4, method as claimed in claim 3 is characterized in that,
The up-downgoing available bandwidth and the disposal ability thereof of the size of described wait processing queue and described P2P terminal are complementary.
5, method as claimed in claim 4 is characterized in that,
Described up-downgoing available bandwidth sends the response of data by real-time monitoring and the speed of reception data is determined;
For the mobile network, consult request by the timed sending upstream and downstream bandwidth and determine with base station negotiate.
6, method as claimed in claim 1 or 2 is characterized in that,
Described method is provided with the priority of described data service according to wherein a kind of or its combination in any of following information:
Service priority requires height that the height of priority is set according to real-time;
Signaling priority is provided with the height of priority according to the function desirability of signaling;
Data priority is according to whether entering the height that urgent window is provided with priority;
User Priority is according to credit height or whether the height of priority is set in buddy list.
7, method as claimed in claim 3 is characterized in that,
When described method sends packet the user of the request of data correspondence in described wait processing queue, the packet to be sent of the request of data correspondence in the described wait processing queue is stored to buffer area, and judge whether current bandwidth is available, if bandwidth can be used, then send packet to described user, otherwise, but treat that the bandwidth time spent sends packet to described user.
8, the system of a kind of P2P terminal flow control is applied to described P2P terminal, it is characterized in that, comprises that continuous priority is provided with module and data processing module, wherein:
Described priority is provided with module, is used to be provided with request of data and priority of data packets, and described precedence information is sent to described data processing module;
Described data processing module after being used for after receiving request of data or receiving packet, adds it according to described request of data or described priority of data packets and to wait for processing queue; And the user of the request of data correspondence in described wait processing queue sends packet or receives packet in the described wait processing queue.。
9, system as claimed in claim 8 is characterized in that, described data processing module adds the wait processing queue with described request of data or packet with it in the following way:
After receiving request of data or packet, judge and wait for whether processing queue is full, if less than, then described request of data that receives or packet are added described wait processing queue; If it is full, judge again whether described request of data that receives or priority of data packets are lower than request of data or the packet in the described wait processing queue, if, then directly with described request of data or data packet discarding, otherwise, replace lower request of data of described wait processing queue medium priority or packet described request of data that receives or packet added described wait processing queue.
10, system as claimed in claim 8 or 9 is characterized in that described system also comprises the upstream and downstream bandwidth monitoring modular that links to each other with described data processing module, wherein:
Described upstream and downstream bandwidth monitoring modular, be used for sending the response of data and receiving the speed of data or consult request for the mobile network by the timed sending upstream and downstream bandwidth and determine the up-downgoing available bandwidth of described P2P terminal, and the described up-downgoing available bandwidth that will determine sends to described data processing module with base station negotiate by real-time monitoring;
Described data processing module also is used for, when the user of the request of data correspondence in described wait processing queue sends packet, judge according to described up-downgoing available bandwidth whether bandwidth is available, if bandwidth can be used, then send packet, but otherwise treat that the bandwidth time spent sends packet to described user to described user.
11, system as claimed in claim 8 or 9 is characterized in that,
Described priority is provided with module and according to wherein a kind of or its combination in any of following information described request of data and priority of data packets is set:
Service priority requires height that the height of priority is set according to real-time;
Signaling priority is provided with the height of priority according to the function desirability of signaling;
Data priority is according to whether entering the height that urgent window is provided with priority;
User Priority is according to credit height or whether the height of priority is set in buddy list.
12, system as claimed in claim 11 is characterized in that,
Described priority is provided with module when the priority of described request of data is set, and the priority of the request of data that other P2P terminals send in the P2P network is set to height.
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