Large file distribution method and system in local area network

Abstract

The invention discloses a large file distribution method and system in a local area network. The method comprises the following steps: a server maintains client list information and numbers clients as C1, C2... Cn in sequence; the server virtually segments a file into n blocks on average and marks the blocks as F1, F2... Fn in sequence; the server maintains file block information and sends the client list information and the file block information to all clients; the server distributes the file block Fi to the client Ci according to the file block information; the client Ci distributes the received file block Fi to other clients in the local area network according to the client list information; and the clients splice the received file blocks F1, F2... Fn into a complete file according to the file block information, verify the integrity of the file and notify the server. According to the large file distribution method and system in the local area network disclosed by the invention, the large file is segmented and is equally distributed to the clients in the form of the file blocks, and the clients distribute the file blocks to one another, thereby reducing the pressure of the server and improving the distribution speed.

Description

technical field [0001] The invention relates to the field of computer technology, in particular to a method and system for distributing large files in a local area network. Background technique [0002] When using the C / S mode to send large files to multiple terminals in the same LAN, the current general practice is: the server sends large files to each client, which leads to a large amount of traffic required for server distribution, and the distribution bottleneck is concentrated in On the server, the file delivery is slow and causes the server to process a high load state for a long time. Once the load is too heavy, it may cause the server to go down and the file needs to be resent. For example, the teacher sends a 100MB file to 60 student terminals through the server, and the server needs to send a total of 6000MB. If the LAN broadband is 100Mbps, it takes 6000MB / 100Mbps=480s to complete the entire distribution process. If the distribution between classes takes such a lo...

AI Technical Summary

Problems solved by technology

[0002] When using the C / S mode to send large files to multiple terminals in the same LAN, the current general practice is: the server sends large files to each client, which leads to a large amount of traffic required for server distribution, and the distribution bottleneck is concentrated in On the server, the file is sent slowly and causes the server to process a high load state for a long time. Once the load is too heavy, it may also cause the server to go down and the file needs to be resent

For example, the teacher sends a 100MB file to 60 student terminals through the server, and the server needs to send a total of 6000MB. If the LAN broadband is 100Mbps, it takes 6000MB / 100Mbps=480s to complete the entire distribution process. If it is actually distributed between classes, it takes such a long time is unacceptable

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