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Available bandwidth measurement method

A measurement method and bandwidth technology, applied in the network field, can solve the problem of low efficiency of available bandwidth

Active Publication Date: 2019-09-24
BEIJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide a method and device for measuring available bandwidth to overcome the problem of low efficiency in calculating available bandwidth at the receiving end in the prior art

Method used

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  • Available bandwidth measurement method

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Embodiment Construction

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0032] figure 1 It is a schematic flowchart of Embodiment 1 of an available bandwidth measurement method provided by the present invention; figure 2 It is a schematic diagram of the distribution of background traffic and test data packets at the transmission bottleneck; image 3 It is a schematic diagram of the transmission delay of the test data packet in the available bandwidth measurement method provided by the present invention.

[0033] Such as figure 1 As shown, the steps of this embodiment include:

[0034] S101: The sending end sequentially sends at least two test data packets to the receiving end of the transmission path to be tested at a first pa...

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Abstract

The present invention provides an available bandwidth measurement method and device. The method comprises the following steps: a sending end sends at least two test data packets to a receiving end of a to-be-measured transmission path in sequence after a first packet sending time interval, wherein the first packet sending time interval is used for making the throughput at the transmission bottleneck of the to-be-measured transmission path reaches the bottleneck bandwidth at the transmission bottleneck; the sending end receives response data packets of the at least two test data packets sent by the receiving end, wherein the length of each response data packet is smaller than a preset length threshold; the sending end determines an actual receiving rate of the to-be-measured transmission path on an uplink direction from the sending end to the receiving end according to the response times of the response data packets of the at least two test data packets, wherein the response time of the response data packet of any test data packet is the time from the sending moment of the test data packet to the arrival of the response data packet at the sending end; and the available bandwidth of the to-be-measured transmission path on the uplink direction is determined according to the actual receiving rate.

Description

technical field [0001] The embodiments of the present invention relate to network technologies, and in particular to a method and device for measuring available bandwidth. Background technique [0002] In recent years, with the rapid development of the Internet, the depth and breadth of information dissemination have reached an unprecedented level, which is profoundly affecting people's way of life. With the rapid development of the Internet, Internet applications are becoming more and more extensive, and the expansion of rich multimedia services has caused a huge change in bandwidth capacity. The bandwidth capacity of the Internet has doubled with the rapid advancement of technology. As we all know, transmission bandwidth and user experience are inseparable and closely related. Therefore, how to measure and evaluate various indicators related to bandwidth is very important and concerned. The results of available bandwidth measurement also provide effective information for n...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/26
Inventor 杨谈陈毓飞金跃辉崔毅东陈丽萍雷友珣
Owner BEIJING UNIV OF POSTS & TELECOMM
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