CN101442483A - Communication traffic control system, and server and client for the same - Google Patents
Communication traffic control system, and server and client for the same Download PDFInfo
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- CN101442483A CN101442483A CNA2008101731437A CN200810173143A CN101442483A CN 101442483 A CN101442483 A CN 101442483A CN A2008101731437 A CNA2008101731437 A CN A2008101731437A CN 200810173143 A CN200810173143 A CN 200810173143A CN 101442483 A CN101442483 A CN 101442483A
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Abstract
Useless communication caused by jam can be avoided by executing jam control in real time even if use ratio of network increases, such that communication can be efficiently carried out totally. Servers (11, 12) extract information containing wireless access points (relay device) (21-25) in receiving signals from client servers (31-35), communication data volume of each relay device are measured, the communication volume information of the relay device are added into the sending data and sent to the client servers (31-35). The server (31-35) acquire recognition information of used relay device, extract the communication volume information of relay device contained in the receiving data from the servers, set latency time according to the communication volume information, and communicate after the latency time.
Description
Technical field
The present invention relates to carry out the network system of packet communication, relate in particular to the network system that to avoid the congested useless communication that causes and communicate expeditiously generally.
Background technology
In the communication of server to the client computer form, a large amount of requests produce congested when client computer focuses on server.
Possesses the congested controlling organization (with reference to non-patent literature 1) under the many situations of the traffic in their communication protocol.That is, among the TCP/IP (RFC793), utilize RTT (Round Trip Time: etc. control round trip delay time), avoid congested by waiting for controlling from the time of replying (waits) of opposite end.
In the wired lan (relating to IEEE802.3), when using repeater HUB (net pivot), (Carrier Sense Multiple Access with Collision Detection: the Carrier Sense Multiple Access of band collision detection) system avoids conflict with CSMA/CD.
In the WLAN (relating to IEEE802.11), utilize on the microcosmic and utilize RTS/CTS (Request to Send/Clear to Send: ask transmission/clear to send) control to avoid congested on CSMA/CD system, the macroscopic view.
Non-patent literature 1:IE association, " letter version Internet dictionary ", online, put down into retrieval on September 12nd, 19, the Internet＜http://dictionary.rbbtoday.com/
Summary of the invention
Yet, common TCP/IP, wired lan, and the communication protocol of WLAN etc. in, congested control does not all have real-time, so overall communication efficient reduces.
That is, aforementioned RTT is the time of cost till send certain data and begin to reply (ACK) and return to the affirmation of opposite end, TCP periodic measurement RTT, and after handling with statistical, value (stand-by period that affirmation is replied) is regularly retransmitted in decision.That is, use in the congested control of RTT, just be not reflected as actual act without to a certain degree time, so there is not real-time.Therefore, in fact the affirmation when becoming congestion state is replied affirmation after the control of stand-by period and congestion state are eliminated and is replied that generation time postpones in the setting of stand-by period.
In addition, under the situation of wired lan, when using repeater HUB etc., the utilization rate of network surpasses 20%, generally just can not communicate by letter.That is, only avoid conflict, also can produce congested with traffic increase with the CSMA/CD system.
In the WLAN, also identical with wired lan, when surpassing quantitative communication request, existence just sinks into the state that can not communicate by letter.
Therefore, the objective of the invention is to, even thereby provide a kind of network usage to increase also to carry out in real time congested control can avoid the congested useless communication that causes and the traffic control system that communicates expeditiously generally.
In order to solve above-mentioned problem, the present invention is constructed as follows.
(1) a kind of traffic control system communicates server by client computer by the network that comprises relay, and the amount of communicating control, wherein
Server possesses the information of the relay that comprises in the received signal of extraction from client computer and each relay is measured the traffic measurement unit of amount of communication data and will be added the traffic information adding device that sends data to the traffic information of the relay (promptly be used for the relay of communicating by letter between client computer and the server or be in the relay of client computer belonging network) that comprises in the communication path between the purpose client computer.
In addition, client computer possess obtain with server between communication path in the relay that comprises identifying information the relay information acquisition unit, extract the relay that comprises in the reception data from server traffic information and according to this traffic information set the stand-by period the stand-by period setup unit, and wait for this stand-by period of communicating by letter after the wait control unit that communicates.
According to this formation, owing to the traffic of measuring each communication path at server side, with this traffic notice client computer, so client-side is by the communication wait suitable according to this information setting, reduce client computer to the request that server sends, avoid the congested useless communication that causes.Its result can communicate by letter generally expeditiously.
(2) aforementioned stand-by period setup unit is preserved the time mark that communicates the moment of (transmitting-receiving) between conduct and the aforementioned server, and sets the stand-by period according to aforementioned communication amount information and aforementioned time mark.
According to this formation, consider the last elapsed time after the moment of server reception data, set the stand-by period, when for example successively carrying out a plurality of communication, wait is added in the communication that elapsed time after communication last time is short, can be carried out a plurality of communications expeditiously with parallel mode by such.
(3) aforementioned relay has a plurality of, when relay that wherein aforementioned relay information acquisition unit is obtained changes (when the relay that is used for the relay of communicating by letter between client computer and the server or is in the client computer belonging network changes), with the aforementioned stand-by period zero clearing of having obtained.
According to this formation, when for example relay was the access point of WLAN, if move as the terminal of client computer, the access point of use changed, then comprise state (severity of mixing up) difference of communication path of the access point of this use, adapt to this different optimum wait time so can set fast.
According to the present invention, utilize optimum wait control to reduce the useless request of client computer to server, avoid the congested useless communication that causes.Its result can communicate by letter generally expeditiously.
Description of drawings
Fig. 1 is the block diagram of network that adopts the communication control system of embodiment of the present invention.
Fig. 2 is the flow chart of treatment step that each node of this network is shown.
Label declaration
The 10th, communication network, the 11, the 12nd, server, the 21, the 22nd, Wireless LAN access point, 23～25th, HUB, 32～35th, wireless terminal, 21～25th, relay, 31～35th, client computer.
Embodiment
Fig. 1 is the block diagram that adopts the network of the related communication control system of embodiments of the present invention.This network possesses communication network 10, the server 11 and 12 that is connected this communication network 10, the client computer 31～35 with Wireless LAN access point 21,22 and HUB23～25 etc.
For example, client computer 31 is filed a request to server 11 by HUB23～25 grades in the communication network 10, and receives reply data from server 11.In addition, wireless terminal 32～34 communicates with server 11 or 12 through Wireless LAN access point 21 and HUB (23～25 etc.).Similarly, wireless terminal 35 communicates by Wireless LAN access point 22.
Fig. 2 is the flow chart that the contents processing that server shown in Figure 1 11,12 and client computer 31～35 carry out is shown.
Among Fig. 2, terminal processes A is that client computer 31～35 is carried out, the processing when determining communication path, when client computer is determined communication path, obtains the information of the relay that communicates the buret reason.For example, receive, extract the mac address information of the Wireless LAN access point that comprises in this signal, its identifying information as Wireless LAN access point from the beacon signal of LAN access point with the predetermined period transmission.
The stand-by period obtained restored thereafter.That is, the stand-by period of having obtained be in the communication path of last time the optimized stand-by period, can not former state adopt this wait value in this communication path of newly determining, so restore here.
In addition, being not limited to MAC Address as the identifying information of relay, also can be well-determined information such as IP address.
In addition, making Wireless LAN access point shown in this example is the example of management object, is the object of traffic management but also can make a plurality of relays in the communication path.
Among Fig. 2, terminal processes B is that the transmission of client computer is handled.At first the information of whether communicate by letter with last time successfully etc. according to the traffic information that obtains from the server of hereinafter setting forth and time mark (receiving the moment of data at last from server) thereof is calculated the stand-by period, and wait waiting time.Waiting time is considered as the frequency band of communication line of object or characteristic etc., decides like that as described later.For example, distinguish in the time of to carry out communication greater than the ability of this communication line for narrow communication line, add high latency.Thus, make congestion relief.Otherwise if during the state that can fully communicate by letter, then making the stand-by period is 0 control.
The identifying information of relay added sending in data, and this data sent thereafter.Then, in the calculating of the stand-by period of storage in advance after being arranged on server between success or failure of communicating by letter and time mark thereof.
Among Fig. 2, terminal processes C is that the reception of client computer is handled, and client computer is preserved it from the traffic information from the extracting data relay that is received of server with time mark.
Among Fig. 2, server process A is handling from the reception of client computer of carrying out of server 11,12, the information of the extracting data relay that sends from client computer, and each relay calculated the traffic.Data as this traffic, preferably being used as the traffic of time per unit calculates, but also can be in server side only merely storing communication amount and time mark, and calculate the traffic (among the present invention, " traffic information " is for comprising the notion of this two aspect) of time per unit in client-side.
Among Fig. 2, server process B is that the transmission carried out of server is handled, and server sends each data, the traffic information of (client computer is used) relay under the purpose client computer is added in the data to sending.
Further, among Fig. 2, AP handles be Wireless LAN access point with client computer between the preceding processing of communicate by letter.The processing of this connection wireless terminal is carried out according to the regulation of IEEE802.11 standard.Along with this processing, wireless terminal is obtained the MAC Address of the Wireless LAN access point (relay) that can connect shown in terminal processes A.
Then, pending example is described etc.
(1) judges whether to wait pending (a)
Observe the traffic of each communication path, judge whether and to wait for.
For example, only when the traffic that has more than a certain amount of, wait for.Thus, do not carry out unnecessary wait, try hard to raise the efficiency.Characteristic according to the transmission line of monitored object is calculated above-mentioned a certain amount of value.
(2) judge whether to wait pending (b)
According to from the successful communication expected value of the statistics in past and result of communication of last time etc., judge whether and to wait for.That is,, make the terminal wait of success in order to make the client computer priority communication success of failure last time; Otherwise, preferential for the terminal that makes success, the client computer of failure is waited for.
(3) judge whether to wait pending (c)
Observe the elapsed time after communicated by letter with last time, whether judge whether within a certain period of time and will wait for according to it.For example, connection is constantly carried out under the situation of a plurality of communications on the time, if the short client computer of elapsed time after communication last time makes its wait longer; The client computer that elapsed time after the last time communication is long then makes it wait for short or is 0.
(4) stand-by period
Stand-by period can be the same time.Yet, for fear of conflict, can make it within the specific limits at random, perhaps use the successful expected value obtained in " judging whether to wait pending (b) " or last time result of communication etc., the time is changed.Also these methods can be used in combination.
In addition, more than shown in example in enumerate the communication network of wired lan and WLAN, be example with the Wireless LAN access point as relay in addition, but the present application so long as the packet communication by relay all can adopt, and irrelevant with the form of this relay and network.For example, can be applicable to the dialcom of mobile phone or the most internet communications such as PPPoE (Point to Point Protocol over Ethernet :) connection of connection the Internet based on the point-to-point protocol of Ethernet.
Claims (5)
1. a traffic control system communicates the client computer mode by server by the network that comprises relay, and the amount of communicating control, it is characterized in that,
Server possess the relay that comprises in the received signal of extraction from client computer information and to each relay measure amount of communication data the traffic measurement unit, and with and the purpose client computer between communication path in the traffic information of the relay that comprises add the traffic information adding device that sends data to
Client computer possess obtain with server between communication path in the relay that comprises identifying information the relay information acquisition unit, extract the relay that comprises in the reception data from server traffic information and according to this traffic information set the stand-by period the stand-by period setup unit, and wait for this stand-by period of communicating by letter after the wait control unit that communicates.
2. the traffic control system described in claim 1, it is characterized in that, described stand-by period setup unit is preserved the time mark in the moment that communicates between conduct and the described server, and sets the stand-by period according to described traffic information and described time mark.
3. traffic control system as claimed in claim 1 or 2 is characterized in that described relay has a plurality of, and possesses the unit of the described stand-by period zero clearing that will obtain when relay that wherein said relay information acquisition unit obtains changes.
4. traffic control system server is used for by server the client computer mode being communicated and the traffic control system of the amount of communicating control by the network that comprises relay, it is characterized in that possessing:
The information of the relay that comprises in the received signal of extraction from client computer and to each relay measure amount of communication data the traffic measurement unit, and with and the purpose client computer between communication path in the traffic information of the relay that comprises add the traffic information adding device that sends data to.
5. traffic control system client computer is used for by server the client computer mode being communicated and the traffic control system of the amount of communicating control by the network that comprises relay, it is characterized in that possessing:
Obtain with server between communication path in the relay that comprises identifying information the relay information acquisition unit, extract the relay that comprises in the reception data from server traffic information and according to this traffic information set the stand-by period the stand-by period setup unit, and wait for this stand-by period of communicating by letter after the wait control unit that communicates.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007280041 | 2007-10-29 | ||
| JP2007-280041 | 2007-10-29 | ||
| JP2007280041A JP5063293B2 (en) | 2007-10-29 | 2007-10-29 | Traffic control system, traffic control system server, and traffic control system client |
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| Publication Number | Publication Date |
|---|---|
| CN101442483A true CN101442483A (en) | 2009-05-27 |
| CN101442483B CN101442483B (en) | 2012-07-04 |
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| CN2008101731437A Active CN101442483B (en) | 2007-10-29 | 2008-10-29 | Communication traffic control system, and server and client for the same |
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| JP (1) | JP5063293B2 (en) |
| CN (1) | CN101442483B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012058997A1 (en) * | 2010-11-05 | 2012-05-10 | 中兴通讯股份有限公司 | Terminal and method for terminal to access network |
| WO2012109823A1 (en) * | 2011-02-14 | 2012-08-23 | 中兴通讯股份有限公司 | Congestion control method and system of machine type communication equipments |
| CN101707618B (en) * | 2009-12-10 | 2013-01-30 | 福建星网锐捷网络有限公司 | Authentication control method, device, system and authentication server |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5279030B2 (en) * | 2009-07-30 | 2013-09-04 | Ｋｄｄｉ株式会社 | Content transfer time zone determination method |
| KR101098256B1 (en) | 2009-11-24 | 2011-12-26 | 동명대학교산학협력단 | Timeout control for in-network data aggregation in sensor networks considering packet size limit |
| JP6513822B2 (en) * | 2015-11-12 | 2019-05-15 | オリンパス株式会社 | Server, client, communication system, communication method, and program |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3694844B2 (en) * | 1996-09-06 | 2005-09-14 | 富士通株式会社 | Packet communication apparatus, communication control method, and access point |
| JP2995676B2 (en) * | 1996-11-15 | 1999-12-27 | 株式会社超高速ネットワーク・コンピュータ技術研究所 | Information communication method |
| US6404752B1 (en) * | 1999-08-27 | 2002-06-11 | International Business Machines Corporation | Network switch using network processor and methods |
| JP4018549B2 (en) * | 2003-01-09 | 2007-12-05 | キヤノン株式会社 | Load balancing method in wireless system |
| JP4633529B2 (en) * | 2005-04-22 | 2011-02-16 | 三菱電機株式会社 | Load balancing method, C-planeWireless Controller device, base station and terminal station |
| JP4764108B2 (en) * | 2005-08-30 | 2011-08-31 | 富士通株式会社 | Wireless terminal, management device, wireless LAN control method, wireless LAN system |
| KR100716184B1 (en) * | 2006-01-24 | 2007-05-10 | 삼성전자주식회사 | Apparatus and method for a queue management of network processor |
-
2007
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101707618B (en) * | 2009-12-10 | 2013-01-30 | 福建星网锐捷网络有限公司 | Authentication control method, device, system and authentication server |
| WO2012058997A1 (en) * | 2010-11-05 | 2012-05-10 | 中兴通讯股份有限公司 | Terminal and method for terminal to access network |
| CN102469514A (en) * | 2010-11-05 | 2012-05-23 | 中兴通讯股份有限公司 | Terminal and method for accessing terminal to network |
| WO2012109823A1 (en) * | 2011-02-14 | 2012-08-23 | 中兴通讯股份有限公司 | Congestion control method and system of machine type communication equipments |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5063293B2 (en) | 2012-10-31 |
| JP2009111562A (en) | 2009-05-21 |
| CN101442483B (en) | 2012-07-04 |
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