CN101707634B - Method and system for realizing high-speed uploading and downloading of electronic mail - Google Patents
Method and system for realizing high-speed uploading and downloading of electronic mail Download PDFInfo
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- CN101707634B CN101707634B CN200910252139.4A CN200910252139A CN101707634B CN 101707634 B CN101707634 B CN 101707634B CN 200910252139 A CN200910252139 A CN 200910252139A CN 101707634 B CN101707634 B CN 101707634B
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Abstract
The invention discloses a method and a system for realizing the high-speed uploading and downloading of an electronic mail. The method comprises the following steps: when uploading, calculating the size of an accessory by a Web mail server and comparing the size of the accessory with a system strategy starting threshold; if the size of the accessory meets the requirement of the threshold, transmitting a network strategy request to a strategy control server; changing a network strategy by the strategy control server according to a request issued by the web mail server and enhancing the uploading access speed of a user; when downloading, accessing a mail server by the web mail server, calculating the size of an unread mail of the user according to return parameters and comparing the size of the mail of the user and the system strategy starting threshold; if the size of the mail of the user reaches the threshold, transmitting the network strategy request to the strategy control server; and changing the network strategy by the strategy control server according to the request issued by the web mail server and enhancing the downloading access speed of the user. Under a condition that a higher access bandwidth is not applied, the invention can realize the uploading and the downloading of a large mail.
Description
Technical field
The present invention relates to Internet technology in the data communication, refer to especially a kind of method and system of realizing Email high-speed uploading and download.
Background technology
At present, the Email service mainly comprises 2 kinds of forms: a kind of is the transmitting-receiving of directly carrying out mail by Mail Clients software as mail server, and another kind is to receive and dispatch by web access mail server.Generally the web mode is more valuable to operator in commercial affairs.In the web mode, mail service comprises that 3 participate in entity, user browser, mail web server and mail server.The user is by browser access mail web server, and the mail web server is used mail protocol access mail server, and by the web interface content and operational order is showed the user.The employed protocol description of prior art is as shown in Figure 1: use the http agreement between user browser and the mail web server, use the SMTP/POP agreement between mail web server and the mail server.
Wherein, the Http agreement is used 80 ports, adds that the sign of station address and mail web server address formation Business Stream is other.
SMTP (Simple Mail Transfer Protocol) is that Email is transferred to the host-host protocol that another server uses from the client transmission to the server or from some servers.SMTP is request/response protocol, and command and response all is based on the ASCII text, and finishes with CR and LF symbol.Response comprises three digit numerical code of an expression return state.SMTP monitors connection request at Transmission Control Protocol 25 ports.
The SMTP order comprises:
HELO is to the server identification user identity.The sender can cheat, lie, but server can both detect generally speaking.The EHLO expansion is to the server identification user identity.The sender can cheat, lie, but server can both detect generally speaking.The address of appointment is the single mail reception people of sender address RCPT TO sign in the MAIL FROM order; A plurality of RCPT TO can be arranged; The MAIL that is everlasting orders the back.DATA represents that all mail reception people identify after single or multiple RCPT orders, and initialize data transfer, finishes with CRLF.CRLF, and whether user/mailbox that VRFY is used for the checking appointment exists; Reason owing to secure context, server is often forbidden this order, whether the given mailbox tabulation of EXPN checking exists, and expands the mailbox tabulation, also often disabled, the HELP querying server is supported any order, NOOP is without operation, and server should respond OK, RSET replacement session, current transmission is cancelled, the QUIT end session.
POP is the email protocol that is applicable to the off line model of C/S structure, has developed at present the third edition, claims POP3.When client computer is connected with server and inquires about new e-mail, by all of this client computer appointment the mail that is downloaded all will be downloaded to client computer by program, after the download, any mail can be deleted or revise to E-mail client just, and need not with e-mail server further mutual.POP3 client sends order and wait-for-response to the POP3 server, and the order line form is adopted in the POP3 order, represents with ASCII character.Server response is comprised of an independent order line, or a plurality of order line forms, the response the first row with ASCII text+OK or-ERR points out that corresponding mode of operation is success or failure.Three kinds of states are arranged: approval state, treatment state and update mode in the POP3 agreement.Set up when contacting when client computer and server, in case client computer provides own identity and successfully confirmed, namely change treatment state over to by the approval state, client computer is sent the quit order after finishing corresponding operation, then enter update mode, return at last the approval state after upgrading, as shown in Figure 2.
Generally speaking, most of existing POP3 clients and server are carried out and are adopted ASCII expressly to send the user name and password, wait at the approval state in the situation of client's connection, the client sends connection, and the user name and password carries out identity validation to server to sending expressly at network by order user/pass.In case confirm successfully, just change treatment state over to.Problem for fear of sending plaintext password has a kind of new authentication method, orders to be APOP, uses APOP, and password is encrypted before transmission.When being connected with server for the first time, the POP3 server sends an ASCII character to client computer and greets, and this greets by paired each client computer of a string character group is unique, relevant with the time at that time.Then client computer appends to its plain text password after the character string that server receives, and calculates as a result that the MD5 of character string singly goes out the function eap-message digest again, and client computer sends user name with the parameter of MD5 eap-message digest as the APOP order.The POP3 command code is as follows:
If this orders USER username and following pass order success, will cause the state conversion;
PASS?password；
APOP Name, Digest Digest are the MD5 eap-message digests;
STAT None processing request server is beamed back the statistics about mailbox, such as mail sum and total bytes;
UIDL[Msg#] process the unique identifier that returns mail, each identifier of POP3 session will be unique;
LIST[Msg#] process the size return number of mail and each mail;
RETR[Msg#] process the full text return by the mail of parameter identification;
DELE[Msg#] processing server will be labeled as deletion by the mail of parameter identification, by the quit command execution;
RSET None processing server will be reset, and all are labeled as the mail of deletion, are used for cancelling the DELE order;
TOP[Msg#] processing server will return by the capable content of n before the mail of parameter identification, and n must be positive integer; NOOP None processing server returns a sure response.
The policy control server is based on the control system of broad band network quality differentiation, realize user access point (gateway) by the policy control server system, Service Access point (BRAS/SR), three key network node Collaborative Control bandwidth of content exit point (outlet of IDC content) and priority (the whole network is disposed and can be realized end to end professional the assurance), 3 abilities can offer client's (or CP/SP uses) alone or in combination according to client/service needed, thereby created broadband lean operation ability, the business model that combines with Bandwidth guaranteed based on using is provided.
The policy control server provides transfer control function based on strategy to application layer, makes application layer can ask Internet resources are reserved, and does not need to understand bottom and transmit network.Corresponding resource is assessed and reserved to the policy control server according to the strategy of operator to the resource request of application layer, operator can be carried out admit control and independently carrying media Flow Policy is set.The policy control server can be carried on the different Access Networks miscellaneous service, and can not exert an influence to professional ability.
At present, web mode E-mail address (Email) service clearance is generally all between 1G-10G, when sending and sharing some pictures, video, office annex, file size is through being everlasting several million between the hundreds of million, like this for the user of common bandwidth the sending and receiving time a few minutes between the dozens of minutes; If mail is large again, in general, the time surpasses the half an hour user will abort operation.
Summary of the invention
In view of this, the object of the invention is to propose a kind of method and system of realizing Email high-speed uploading and download, can not needing the user to apply under the condition of higher access bandwidth, realize high-speed uploading and the download of large mail.
Based on above-mentioned purpose a kind of system that realizes Email high-speed uploading and download provided by the invention, comprising:
The Web mail server, be used for when Email is uploaded, the current annex size of uploading of Web mail server real-time inspection, the current annex size of having uploaded is started threshold value with system strategy to be compared, if the annex size of having uploaded reaches described startup threshold value, send the network strategy request to the policy control server; When email download, the access mail server calculates user of unread mail size according to return parameters, and user mail size and system strategy startup threshold value are compared, if the mail size reaches this startup threshold value, send the network strategy request to the policy control server;
Mail server for the mail data of leading subscriber, provides the POP of standard and SMTP interface to call for the Web mail server;
The policy control server, the request that is used for issuing according to the Web mail server changes network strategy, promotes the access speed that the user uploads or downloads.
Optionally, the described network strategy required parameter of this system comprises user's source IP address, purpose IP address, service port number, MAC Address, bandwidth on demand, QOS rank.
Optionally, the network strategy that issues of the described policy control server of this system only flows for the IP in the distributing policy;
Described IP stream is determined by described source IP address, purpose IP address, service port number and MAC Address.
Optionally, the described Web mail server of this system also is used in the distributing policy request, and mark active user's state is preferential carrying; In described mail upload and download process, if the user mail size reaches described threshold value, the Web mail server checks user's current state, if current state is preferential carrying already then does not further send the network strategy solicit operation; Otherwise, carry out the request of described transmission network strategy to the operation of policy control server.
Optionally, the described Web mail server of this system also is used for checking user's current state after the request of logging off of receiving the user, if active user's state is not preferential carrying, then directly withdraws from user's login; If preferential carrying sends network strategy cancellation request to the policy control server;
The policy control server, the cancellation request that also is used for issuing according to the Web mail server changes network strategy, reverts to user's initial condition.
Optionally, the network strategy required parameter of this described transmission of system comprises user's source IP address, purpose IP address, service port number, MAC Address, bandwidth on demand, QOS rank.
Optionally, also be provided with user account database in the described Web mail server of this system, wherein comprise user's priority level field.
Optionally, the described Web mail server of this system calculates the Mail Contents size when also being used for reading user's new mail tabulation, whether needs distributing policy request of the threshold decision that sets in advance according to system.
Based on above-mentioned purpose, the present invention also provides a kind of method that realizes Email high-speed uploading and download, comprising:
When Email is uploaded, the current annex size of uploading of Web mail server real-time inspection, the current annex size of having uploaded is started threshold value with system strategy compare, if the annex size of having uploaded reaches described startup threshold value, send the network strategy request to the policy control server;
The policy control server changes network strategy according to the request that the Web mail server issues, and promotes the user and uploads access speed;
When email download, Web mail server access mail server calculates user of unread mail size according to return parameters;
User mail size and system strategy startup threshold value are compared, if do not reach this threshold value, press the surface mail flow processing; If reach this threshold value, send the network strategy request to the policy control server;
The policy control server changes network strategy according to the request that the Web mail server issues, and promotes user's download access speed.
Optionally, the described network strategy required parameter of the method comprises user's source IP address, purpose IP address, service port number, MAC Address, bandwidth on demand, QOS rank.
Optionally, the network strategy that issues of the described policy control server of the method only flows for the IP in the distributing policy;
Described IP stream is determined by described source IP address, purpose IP address, service port number and MAC Address.
Optionally, the method is in the distributing policy request, and Web mail server mark active user's state is preferential carrying;
In described mail upload and download process, if the user mail size reaches described threshold value, further comprise: the Web mail server checks user's current state, if current state is preferential carrying already then does not further send the network strategy solicit operation; Otherwise, carry out the request of described transmission network strategy to the operation of policy control server.
Optionally, the method comprises that also the user normally cancels the use flow process, comprising:
The Web mail server checks user's current state after receiving user's the request of logging off, if active user's state is not preferential carrying, then directly withdraws from user's login; If preferential carrying sends network strategy cancellation request to the policy control server;
The policy control server changes network strategy according to the cancellation request that the Web mail server issues, and reverts to user's initial condition.
Optionally, the network strategy required parameter of the described transmission of the method comprises user's source IP address, purpose IP address, service port number, MAC Address, bandwidth on demand, QOS rank.
Optionally, also comprise effective time in the described network strategy request, the method also comprises:
If mail uploads/downloading process in, corresponding ports and IP stream interrupt, strategic server no longer ensures New Consumers stream, exceeds in the opening process, by the set effective time of network strategy request that sends, strategy stops;
Connect the effective time that exceeds strategy if the Web mail server detects the user, it is expired that user's webpage is set, and starts the user and normally cancel use flow process cancellation strategy;
If it is reactionless that the Web mail server detects user side, stop session, start the user and normally cancel use flow process cancellation strategy.
Can find out from above, the method and system of realization Email high-speed uploading provided by the invention and download, when the user normally uses the mailbox service receiving and dispatching mail, attend the meeting more greatly when affecting user's use perception when detecting the needed data volume of uploading or downloading of user's current operation, system operates automatically accordingly, the control of user's stand-by period within the acceptable range.Thereby do not needing the user to apply under the condition of higher access bandwidth, can when receiving or sending large mail, accelerate for the user, satisfying user's demand.The user without any need for special operation, has promoted the use impression of user to the E-mail address using technical solution of the present invention to send in the mail process.
Description of drawings
Fig. 1 is the schematic diagram of the employed agreement of prior art web mode mailbox;
Fig. 2 is three kinds of state conversions of prior art POP3 agreement schematic diagram;
Fig. 3 is the system configuration schematic diagram that the embodiment of the invention realizes Email high-speed uploading and download;
Fig. 4 is the schematic flow sheet that embodiment of the invention user downloads mail;
Fig. 5 is the schematic flow sheet of the normal cancellation of embodiment of the invention user
Fig. 6 is the schematic flow sheet that embodiment of the invention user downloads mail.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, below in conjunction with specific embodiment, and with reference to accompanying drawing, the present invention is described in more detail.
The present invention realizes that the main technical schemes of Email high-speed uploading and download comprises:
When Email is uploaded, Web mail server real-time inspection annex size, the current annex size of having uploaded is started threshold value with system strategy to be compared, if the annex size does not reach this threshold value, carry out the surface mail flow process, start the threshold value requirement if the annex size of having uploaded reaches, send the network strategy request to the policy control server; The policy control server changes network strategy according to the request that the Web mail server issues, and promotes the user and uploads access speed;
When email download, Web mail server access mail server calculates user of unread mail size according to return parameters; User mail size and system strategy startup threshold value are compared, if do not reach this threshold value, press the surface mail flow processing; If reach this threshold value, send the network strategy request to the policy control server; The policy control server changes network strategy according to the request that the Web mail server issues, and promotes user's download access speed.
Referring to shown in Figure 3, present embodiment realizes that Email high-speed uploading and download system structure comprise:
(1) accepts user's access, the user is authenticated.For realizing user's authentication function, the Web mail server need to be safeguarded a user account database, wherein comprises user's priority level field.
(2) judge whether the user is the user that high-speed uploading/download authority is arranged;
Judge according to the user priority level field in the customer data base whether the user is the user that high-speed uploading/download authority is arranged.
In new mail tabulation time of (3) reading the user, calculated the Mail Contents size according to wherein e-mail messages, and whether the threshold decision that sets in advance according to system the needs distributing policy.
(4) show the user mail tabulation.
(5) issue network strategy to strategic server.
(6) cancel network strategy.
(7) operate according to the user and calculate subscriber policy effective time.User's initial time when logining, the user is set, when later on each user operates with the difference of user's current time and initial time, compare tactful effective time, when strategy effective time-(current time-initial time) less than systemic presupposition during less than the systemic presupposition threshold value, distributing policy time-delay is when this difference judges that the user is overtime during more than or equal to predetermined threshold value.
(8) billing function: the bill information that the user is used at every turn the data such as time of high-speed uploading/download service and user account number form, and can as requested described bill information be passed to the charge system of appointment.
Policy control server 303 is responsible for the enforcement of network strategy.
The interface function that needs to provide between policy control server 303 and Web mail server 301 comprises:
(1) custom strategies service
By Web mail server customize services, whether authentication of users can customize this policy service, if can customize, and the policy information of recording user customization, and return results calling system.
(2) cancellation custom strategies service
Web mail server cancellation service, the policy information of deletion customization, and return results is to calling system.
(3) service lifecycle management
Determine whether to start or to cancel the strategy of customization according to policy service information and the user of the customization message of reaching the standard grade, break.
(4) Service Statistics
The user serves operating position by range statistics, can count in certain zone, in certain time scope, customizes the service-user sum, total service duration; The total number of users that current total use is served, total bandwidth on demand.
As one embodiment of the present of invention, can pass through Web mail server and policy control server Establishment strategy interface, and realize judging whether this distributing policy request at Web mail server increase processing logic, issue which kind of strategy request.In this system's use procedure, the user uses browser to carry out normal browsing, without any need for special operation.
The below describes in detail based on the realization Email high-speed uploading of said system and the method flow of download.
Referring to shown in Figure 4, the user downloads mail flow.
Step 402, the username and password of Web mail server authentication of users, if password correctly carries out next step, otherwise the refusing user's access.
Step 403, the Web mail server is searched user priority level field in the customer data base according to user name, judge according to the user priority level field in the customer data base whether this user is the user with high-speed downloads authority, and carry out the user property mark according to the user class of service.If this user is the user with high-speed uploading/download authority, then enter next step, otherwise, carry out the normal email flow process by the prior art mode.
Step 404, Web mail server are used Pop/List command access mail server, calculate user of unread mail size according to the e-mail messages in the new mail tabulation of returning.User mail size and system strategy startup threshold value are compared, if do not reach this threshold value, carry out the surface mail flow process by the prior art mode; If reach the threshold value requirement, enter step 405.
Step 405, Web mail server send the network strategy request to the policy control server, and the policy control server changes network strategy according to the request that the Web mail server issues, and promotes user's access speed.The network strategy that the policy control server issues is only for the stream of the IP in the distributing policy, and this IP stream is determined by described source IP address, purpose IP address, service port number and MAC Address.
The network strategy required parameter that sends comprises user's source IP address, purpose IP address, service port number, MAC Address, bandwidth on demand, QOS rank and effective time.In distributing policy, the state that the Web mail server should the mark active user is preferential carrying.
If the user mail size reaches described threshold value in this step, also can further comprise: the Web mail server checks user's current state and the attribute flags that is kept in the customer data base, if current state is preferential carrying already then does not further send the network strategy solicit operation; If not preferential carrying, and user property is labeled as and possesses the authority user, then sends described network strategy request to the policy control server.
Step 406, the Web mail server sends to user's client computer with the tabulation of the user mail that obtains in the step 404 from mail server, be shown to the user at the browser of client computer.
High-speed channel after step 407, user's client computer promote by access speed is downloaded mail.
Step 408, the user finishes using and withdraws from the login of Web mail server.
Referring to shown in Figure 5, the user normally cancels flow process, comprising:
Step 501, after the user finished using, client computer sent the request of logging off to the Web mail server.
Step 502, the Web mail server checks the user property mark, directly withdraws from user's login if not the user that high-speed uploading/download authority is arranged.If so, check user's current state, if active user's state is not preferential carrying, directly withdraw from user's login, if preferential carrying enters step 503.
Step 503 sends network strategy cancellation request to the policy control server, and the policy control server changes network strategy according to the cancellation request that the Web mail server issues, and reverts to user's initial condition.
In this step, the network strategy required parameter of transmission comprises user's source IP address, purpose IP address, service port number, MAC Address, bandwidth on demand, QOS rank.In distributing policy, the state that the Web mail server should be cancelled the mark active user is preferential carrying.
Step 504, the normal completing user of Web mail server is logged off.
Referring to shown in Figure 6, the user uploads mail flow, comprising:
Step 601 when the user sends mail by web server, is clicked and is uploaded the attachment function button.
Step 602, the Web mail server is uploaded the size of calculating mail in the process of annex in process user, in real time the current annex size of uploading being started threshold value with system strategy compares, if annex upload complete after, the size of annex does not reach this threshold value, then carries out the surface mail flow process by the prior art mode; If in the annex annex upload procedure, the size of having uploaded part has reached the requirement of threshold value, then checks user's current state and attribute flags.If current state has been preferential carrying then has not further operated; If not preferential carrying, and user property is labeled as and possesses the authority user (user of high-speed uploading authority), enters step 603.
Step 603, web server send the network strategy request to the policy control server, and the policy control server changes network strategy according to the request that the Web mail server issues, and promotes user's access speed.The network strategy that the policy control server issues is only for the stream of the IP in the distributing policy, and this IP stream is determined by described source IP address, purpose IP address, service port number and MAC Address.
Wherein, the network strategy required parameter of transmission comprises user's source IP address, purpose IP address, service port number, MAC Address, bandwidth on demand, QOS rank and effective time.In distributing policy, the state that the Web mail server should the mark active user is preferential carrying.
Step 605, the user sends mail by high-speed channel.
Step 604, Web mail server generate the data order, send user mail to mail server.
Step 606, finish using backed off after random login of user.
The improper following three kinds of situations that generally include that withdraw from of user:
(1) user directly closes browser, after the user closes browser, corresponding ports and IP stream interrupt, strategic server no longer ensures New Consumers stream, cross after date and (namely exceed in the opening process when the tactful effective time of systemic presupposition, by the set effective time of network strategy request that sends), strategy stops.
(2) user connects overtime: the Web mail server detects the user and connects overtimely, namely exceeds effective time of strategy, and it is expired that user's webpage is set, and starts the user and normally cancels and use flow process cancellation strategy.
(3) user side is reactionless: it is reactionless that the Web mail server detects user side, stops session, starts the user and normally cancel use flow process cancellation strategy.
The present invention can arrange the system strategy startup threshold value of mail upload procedure and the in the same size that the system strategy in the mail downloading process starts threshold value, also can arrange inconsistent.
Above-described specific embodiment is specific embodiments of the invention only, is not limited to the present invention, and is within the spirit and principles in the present invention all, any modification of making, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (13)
1. a system that realizes Email high-speed uploading and download is characterized in that, comprising:
The Web mail server, be used for when Email is uploaded, the current annex size of uploading of Web mail server real-time inspection, the current annex size of having uploaded is started threshold value with system strategy to be compared, if the annex size of having uploaded reaches described startup threshold value, send the network strategy request to the policy control server; When email download, the access mail server calculates user of unread mail size according to return parameters, and user mail size and system strategy startup threshold value are compared, if the mail size reaches this startup threshold value, send the network strategy request to the policy control server;
Mail server for the mail data of leading subscriber, provides the POP of standard and SMTP interface to call for the Web mail server;
The policy control server, the request that is used for issuing according to the Web mail server changes network strategy, promotes the access speed that the user uploads or downloads;
Described Web mail server also is used in the distributing policy request, and mark active user's state is preferential carrying; In described mail upload and download process, if the user mail size reaches described threshold value, the Web mail server checks user's current state, if current state is preferential carrying already then does not further send the network strategy solicit operation; Otherwise, carry out the request of described transmission network strategy to the operation of policy control server.
2. system according to claim 1 is characterized in that, described network strategy required parameter comprises user's source IP address, purpose IP address, service port number, MAC Address, bandwidth on demand, QOS rank.
3. system according to claim 2 is characterized in that, the network strategy that described policy control server issues only flows for the IP in the distributing policy;
Described IP stream is determined by described source IP address, purpose IP address, service port number and MAC Address.
4. system according to claim 1 is characterized in that, described Web mail server also is used for checking user's current state after the request of logging off of receiving the user, if active user's state is not preferential carrying, then directly withdraws from user's login; If preferential carrying sends network strategy cancellation request to the policy control server;
The policy control server, the cancellation request that also is used for issuing according to the Web mail server changes network strategy, reverts to user's initial condition.
5. system according to claim 4 is characterized in that, the network strategy required parameter of described transmission comprises user's source IP address, purpose IP address, service port number, MAC Address, bandwidth on demand, QOS rank.
6. system according to claim 1 is characterized in that, also is provided with user account database in the described Web mail server, wherein comprises user's priority level field.
7. system according to claim 6 is characterized in that, described Web mail server calculates the Mail Contents size when also being used for reading user's new mail tabulation, whether needs distributing policy request of the threshold decision that sets in advance according to system.
8. a method that realizes Email high-speed uploading and download is characterized in that, comprising:
When Email is uploaded, the current annex size of uploading of Web mail server real-time inspection, the current annex size of having uploaded is started threshold value with system strategy compare, if the annex size of having uploaded reaches described startup threshold value, send the network strategy request to the policy control server;
The policy control server changes network strategy according to the request that the Web mail server issues, and promotes the user and uploads access speed;
When email download, Web mail server access mail server calculates user of unread mail size according to return parameters;
User mail size and system strategy startup threshold value are compared, if do not reach this threshold value, press the surface mail flow processing; If reach this threshold value, send the network strategy request to the policy control server;
The policy control server changes network strategy according to the request that the Web mail server issues, and promotes user's download access speed; In the distributing policy request, Web mail server mark active user's state is preferential carrying;
In described mail upload and download process, if the user mail size reaches described threshold value, further comprise: the Web mail server checks user's current state, if current state is preferential carrying already then does not further send the network strategy solicit operation; Otherwise, carry out the request of described transmission network strategy to the operation of policy control server.
9. method according to claim 8 is characterized in that, described network strategy required parameter comprises user's source IP address, purpose IP address, service port number, MAC Address, bandwidth on demand, QOS rank.
10. method according to claim 9 is characterized in that,
The network strategy that described policy control server issues only flows for the IP in the distributing policy;
Described IP stream is determined by described source IP address, purpose IP address, service port number and MAC Address.
11. method according to claim 8 is characterized in that, the method comprises that also the user normally cancels the use flow process, comprising:
The Web mail server checks user's current state after receiving user's the request of logging off, if active user's state is not preferential carrying, then directly withdraws from user's login; If preferential carrying sends network strategy cancellation request to the policy control server;
The policy control server changes network strategy according to the cancellation request that the Web mail server issues, and reverts to user's initial condition.
12. method according to claim 11 is characterized in that, the network strategy required parameter of described transmission comprises user's source IP address, purpose IP address, service port number, MAC Address, bandwidth on demand, QOS rank.
13. method according to claim 8 is characterized in that, also comprises effective time in the described network strategy request, the method also comprises:
If mail uploads/downloading process in, corresponding ports and IP stream interrupt, strategic server no longer ensures New Consumers stream, exceeds in the opening process, by the set effective time of network strategy request that sends, strategy stops;
Connect the effective time that exceeds strategy if the Web mail server detects the user, it is expired that user's webpage is set, and starts the user and normally cancel use flow process cancellation strategy;
If it is reactionless that the Web mail server detects user side, stop session, start the user and normally cancel use flow process cancellation strategy.
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| CN101146245A (en) * | 2006-09-11 | 2008-03-19 | 联想(北京)有限公司 | Method for pushing email under heterogeneous network, mobile terminal and server |
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| CN101146245A (en) * | 2006-09-11 | 2008-03-19 | 联想(北京)有限公司 | Method for pushing email under heterogeneous network, mobile terminal and server |
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