Bandwidth measurement method and apparatus

Abstract

The invention provides a method and a device for measuring bandwidth, wherein the method comprises the following steps: step S1, initializing a line bandwidth value as a bandwidth default value; step S2, periodically detecting the interface flow rate and recording the peak value of the interface flow rate, wherein the peak value of the interface flow rate is the maximum value of the interface flow rate detected from the initialization to the current moment; and step S3, adjusting the line bandwidth value according to the bandwidth default value, the current line bandwidth value and the peak value of the interface flow rate. The method records the maximum value of the interface flow rate detected from the initialization to the current moment, namely the peak value of the interface flow rate, and adjusts the line bandwidth value according to the bandwidth default value, the current line bandwidth value and the peak value of the interface flow rate, thus the adjustment of the line bandwidth does not independently depend on the peak value of the interface flow rate so as to avoid the problem that the actual bandwidth of a line cannot be characterized correctly because the bandwidth control is turned on so that the interface flow is suppressed.

Description

technical field [0001] The invention relates to a method and device for bandwidth measurement, in particular to a method and device for dynamic measurement technology of network line bandwidth, and belongs to the technical field of data communication. Background technique [0002] The network bandwidth refers to the maximum amount of data that can be transmitted within a unit time, and it is usually taken as a unit of bits per second (bps for short), that is, the number of bits that can be transmitted per second. [0003] The broadband communication network is provided by an Internet Service Provider (Internet Service Provider, ISP for short), so as to allow communication and interconnection between various user terminals and a local area network. In the existing broadband communication network, when user terminals or enterprises, LANs of Internet cafes, etc. access the Internet, they need to apply for and purchase bandwidth and access methods from the ISP. The access method...

AI Technical Summary

Problems solved by technology

[0008] Although this technical solution is simple to implement, it has the following disadvantages: This solution does not consider whether to enable bandwidth control during line bandwidth measurement. If bandwidth control is enabled initially, the interface traffic will be suppressed because bandwidth control will affect the utilization of line bandwidth. It cannot accurately characterize the actual bandwidth of the line, and this solution only updates the line bandwidth according to the current bandwidth measurement situation, so the accurate bandwidth value cannot be measured; if the bandwidth control is not enabled initially, it will be turned on after a bandwidth measurement period. It may cause network instability at the beginning

Therefore, this solution cannot accurately measure the actual bandwidth of the network line when the bandwidth control function is enabled

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