CN1157035C - Method of setting multi-link bundled user's server combination - Google Patents

Abstract

The present invention discloses a method for providing a multi-link bundling user server group. Multiple multi-link bundling user servers for the on-line registration, the inquiry and the off-line cancellation of multi-link user information are arranged at the end of an access server; a plurality of links of the same user are registered and inquired in the same multi-link bundling user server through dynamic allocation to finally realize bundle; the present invention solves problem that the processing capacity of the multi-link bundling user serves is insufficient when a large quantity of multi-ilink users surf the net, and incenses reliability by switching to backup servers in a fault state.

Description

How to set multi-link bundle user server group

technical field

The invention relates to an Internet access method, in particular to a method for setting a multi-link binding user server group at an access server end.

Background technique

Currently, for users with only one link resource, the Internet access rate is limited by the line transmission rate. However, for users with multiple link resources, such as users who use several telephone lines to access the Internet at the same time, or users who use the ISDN (Integrated Services Digital Network) digital line that can provide a transmission rate equivalent to two telephone lines to access the Internet, it is necessary to assign the Multiple links of a user are bundled. In the application number 01116457.3 and the title of the invention "A Method for Accessing Multi-link Users at the Access Server Side", the applicant adopts a multi-link system that communicates with the access unit in the access server. The link binding user server performs operations such as online registration, query, and offline logout of user information, and identifies the links belonging to the same online user. If the access units where they are located have the same IP (Internet Protocol) address, use The PPP (point-to-point) protocol implements bundling at the link layer; if the access units where they are located have different IP addresses, a tunnel is established between the access units through a tunnel protocol, and then the PPP protocol is used to realize bundling. However, when the number of multi-link users increases to a certain number, the information processing will be concentrated on one multi-link binding user server, and the efficiency will be reduced so that the user information sent by the access server cannot be processed normally, which will lead to binding failure, and In the case of only one server, once a failure occurs, all multi-link users cannot access the Internet normally, and the reliability is low.

Aiming at the problems in the prior art, the purpose of the present invention is to provide a method for setting up multi-link binding user server groups, the method enables multi-link binding user servers to still ensure processing efficiency when multi-link users increase in large numbers, and improve Reliability, and make multiple links belonging to the same user register and query in the same multi-link binding user server.

Contents of the invention

The method adopted in the present invention is: setting up multiple multi-link binding user servers for online registration, query, and offline logout of multi-link user information on the access server, and they communicate with the access unit in the access server , and dynamically designate one of the multi-link binding user servers for each multi-link user's dial-up access.

Dynamically designate a multi-link binding user server for each multi-link user's dial-up access. You can first set the integer starting from m as the number of each multi-link binding user server, and then follow the steps below conduct:

(1) read the user terminal authentication word that the terminal and the access server carry out the LCP (Connection Control Protocol) negotiation of PPP when this multi-link user surfs the Internet;

(2) Find the sum of the numerical sum of each bit of user terminal authentication word, then use the quantity value of multi-link bundled user server to carry out modulo operation to the obtained sum;

(3) Assign the multi-link binding user server whose serial number is equal to the result of adding m to the modulo operation result to the multi-link user.

The technical proposal of the present invention adopts multiple multi-link binding user servers to process user information, and at the same time the processing capacity of the server is improved, and at the same time, a multi-link binding user server is dynamically designated for each multi-link user's dial-up access. method, so that multiple links belonging to the same user are registered and queried in the same multi-link binding user server, and finally the binding is realized on the access server side, and the load is shared by each multi-link binding user server. When the number of users increases, the processing efficiency can still be guaranteed, and even if a certain server fails, the newly connected users will register on other normal running servers, and the operations on the failed server can also be switched to the corresponding backup server to continue. It can still access the Internet, which improves the reliability of access services for multi-link users.

The present invention will be further described below in conjunction with drawings and embodiments.

Description of drawings

FIG. 1 is a schematic diagram of an embodiment of the present invention using two multi-link bundled user servers.

specific embodiment

Referring to Figure 1, after user terminal a dials up to the Internet through two telephone lines or ISDN digital lines B1 and B2 in a multi-link manner, it reaches PSTN program-controlled switch b, and PSTN program-controlled switch b communicates with the access unit in access server c through a trunk line In connection with each other, the multi-link binding user server group d set in the present invention communicates with the access unit in the access server c. Fig. 1 shows the situation that two passages respectively enter different access units in the access server c through the trunk line of the PSTN program-controlled switch b with two links 11 and 12, and the different access units have different IP addresses. 11 and 12 are designated to register and inquire in the same multi-link binding user server because they belong to the same user, and then a tunnel e is established between the two access units, and then the links 11 and 12 are bound using the PPP protocol.

Through observation, it is found that when a multi-link user dials up to access the Internet, the terminal and the access server perform PPP LCP negotiation to generate a user terminal authentication word, which is a hexadecimal number with no more than 20 digits, and the same user The authentication words of the user terminals of the second dialing are different and have randomness. Therefore, in response to this discovery, the numbers of the N multi-link bundled user servers are set as m to m+N-1, where m is an integer. When a multi-link user dials up to access the Internet, read the user terminal authentication word, calculate the sum of the values of each bit of the user terminal authentication word, and then perform a modulo operation on N, and add m to the result of the modulo operation The value range of is also m to m+N-1, for example, there are 3 multi-link bundled user servers, and their numbers are m, m+1, m+2 in turn. When a multi-link user dials up to access the Internet, read the user terminal authentication word, calculate the sum of the values of each bit of the user terminal authentication word, and then use 3 to perform a modulo operation on the obtained sum, and the result of the modulo operation The result after adding m must be one of the three values of m, m+1, and m+2. If the operation result is m, then the user's information will be registered and queried in the multi-link binding user server numbered m .

In order to further improve the reliability of the multi-link user access service, in the multi-link binding user server group, a backup server can be set for each multi-link binding user server to back up the multiple links in the server. Link user information and continue the operations of online registration, query, and offline logout of multi-link user information when the server fails.

The data backup between the active server and the backup server can adopt real-time backup, that is, the active server receives the multi-link user information from the access server, and finds that the backup server exists, and forwards a copy of the multi-link user information to the Backup server. Data backup can also adopt overall backup. Between the primary server and the backup server, the party that saves the latest data refreshes the data on the side that saves the old data. The steps are as follows:

A. Check the data recorded in the multi-link binding user server and its backup server, if inconsistent, perform the next steps;

B. The server with old data as the requester sends a backup request to the sender server with new data;

C. The sender stops receiving data from the access server, and responds to the requester after processing the data received from the access server;

D. The requesting party clears the existing data;

E. The sender sends data to the requester;

F, the backup server returns to the running state;

G. The multi-link binding user server returns to the running state.

The above steps illustrate the negotiation process of the overall data backup, which may be initiated by the request of the backup server or the request of the active server.

According to the technical solution of the present invention, it is also within the protection scope of the present invention for those skilled in the art to use other types of random functions to designate multi-link binding user servers.

Claims (3)

1. A method for setting a multi-link binding user server group, comprising setting a multi-link binding user server for online registration, query, and offline logout of multi-link user information at the access server end, the server and the access server The access units in the server communicate with each other, and it is characterized in that: the quantity of the multi-link binding user servers is multiple, and one of the multi-link binding users is dynamically designated for each multi-link user's dial-up access to the Internet Server; Wherein the dynamic designation of a multi-link binding user server for each multi-link user's dial-up access is to set the integer starting from m as the numbering of each multi-link binding user server in turn, Follow the steps below: (1) read the user terminal authentication word that the terminal and the access server carry out the LCP negotiation of PPP when this multi-link user surfs the Internet; (2) Find the sum of the numerical sum of each bit of user terminal authentication word, then use the quantity value of multi-link bundled user server to carry out modulo operation to the obtained sum; (3) Assign the multi-link binding user server whose serial number is equal to the result of adding m to the modulo operation result to the multi-link user. 2. The method for setting a multi-link binding user server group as claimed in claim 1, characterized in that: each multi-link binding user server is provided with one server for backing up the multi-link user information in the server and When the server fails, it is a backup server that continues the online registration, query, and offline logout operations of multi-link user information. 3. The method for setting a multi-link binding user server group as claimed in claim 2, characterized in that: the overall backup is performed between the multi-link binding user server and its backup server according to the following steps: A. Check the data recorded in the multi-link binding user server and its backup server, if inconsistent, perform the next steps; B. The server with old data as the requester sends a backup request to the sender server with new data; C. The sender stops receiving data from the access server, and responds to the requester after processing the data received from the access server; D. The requesting party clears the existing data; E. The sender sends data to the requester; F, the backup server returns to the running state; G. The multi-link binding user server returns to the running state.

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