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File transmission method under link aggregation linking conditions

A file transmission and link aggregation technology, applied in the field of communication, can solve the problems of limiting transmission efficiency, unable to effectively use all link bandwidth, etc., to improve transmission efficiency and achieve the effect of dynamic load balancing

Active Publication Date: 2017-05-31
XIAN AVIATION COMPUTING TECH RES INST OF AVIATION IND CORP OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, under link aggregation conditions, the protocol cannot effectively use the bandwidth of all links, which limits the transmission efficiency.

Method used

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  • File transmission method under link aggregation linking conditions
  • File transmission method under link aggregation linking conditions

Examples

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Effect test

Embodiment Construction

[0025] like figure 1 , 2 As shown, a file transfer method for link aggregation link conditions, including:

[0026] Data upload method and data download method;

[0027] Among them, the data upload methods include:

[0028] Step 1. The client randomly selects a port from n ports to send a write request to the client, and the request parameters include all n transmission port information of the client;

[0029] Step 2. The server returns an ACK to the client, and the ACK number is 0;

[0030] Step 3, the client n ports randomly send the data blocks in the sliding window at the same time, and the size of the sliding window is z;

[0031] Step 4. After receiving the data block, the server generates the number m of the returned ACK according to the content of the data cache and returns the ACK. The m indicates that m and all previous data blocks have been successfully received;

[0032] Step 5. After receiving the ACK numbered m, the client slides the window forward to m+1, a...

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Abstract

The invention belongs to the field of communication, and provides a file transmission method under link aggregation linking conditions. A data uploading method comprises the following steps: step 1, a client randomly selects a port from n ports to send a write request to the client, wherein the request parameters contain information of all of the n transmission ports of the client; step 2, a server returns ACK to the client, wherein the serial number of the ACK is 0; step 3, the client randomly sends data blocks in a sliding window by the n ports at the same time; step 4, the server generates to-be-returned ACK with a serial number m according to data cache contents after receiving the data blocks, and returns the ACK; step 5, the client receives the ACK with the serial number m, slides the window forward to m+1, and continues to send the data in the window in parallel by the n ports; and step 6, the sending step is repeated until the ACK serial number arrives at the position of the last data block, and the transmission is accomplished.

Description

technical field [0001] The invention belongs to the communication field, and in particular relates to a "request-response" data communication method implemented in a digital information system based on the Date Distribution Service (DDS) standard proposed by the Object Management Group (OMG). Background technique [0002] TFTP (Trivial File Transfer Protocol, RFC1350) is a simple protocol for transferring files, which is usually implemented using the UDP protocol. Its single-port transmission, one ACK transmission method for each data block can ensure the orderly arrival of data. However, under the condition of link aggregation, the protocol cannot effectively use the bandwidth of all links, which limits the transmission efficiency. Contents of the invention [0003] The purpose of the invention of the present invention is: [0004] In order to solve the technical problems existing in the background, the present invention proposes a file transfer method under link aggreg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08H04L12/803H04L1/16
CPCH04L1/1657H04L47/125H04L67/06
Inventor 张杨阳胡宇凡周斌茹伟万欣宇丁玮
Owner XIAN AVIATION COMPUTING TECH RES INST OF AVIATION IND CORP OF CHINA
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