Bandwidth testing method, device and system

Abstract

The embodiment of the invention discloses a bandwidth testing method, device and system. The bandwidth testing method comprises the following steps: a sending facility on a dedicated line sends testing information carrying a bandwidth testing start moment and end moment to a receiving facility before starting the bandwidth testing, so that the receiving facility can clearly know when to start the counting on a testing message and when to end the counting; after finishing the sending of the testing message, the sending facility further can send the sum of the sent testing messages to the receiving facility so that the receiving facility can compute a packet loss rate in combination with the counted receiving sum, and then provide the packet loss rate to the sending facility; the sending facility can finish the bandwidth testing according to the specific numerical value of the packet loss rate. Visibly, the bandwidth testing mode disclosed by the invention is independent of the channel bandwidth to the sending facility from the receiving facility, and can effectively perform the bandwidth testing aiming at a one-way channel in an asymmetric network; and the sending facility can automatically adjust a predetermine rate according to the packet loss rate, thereby realizing the automation of the bandwidth testing and improving the efficiency of the bandwidth testing.

Description

technical field [0001] The invention relates to the communication field, in particular to a bandwidth testing method, device and system. Background technique [0002] For some network requirements, network operators can provide dedicated line services for customers, that is, to allocate network channels with fixed bandwidth to customers, and the users can exclusively enjoy the fixed bandwidth. In order to determine whether the bandwidth-related parameters of the allocated leased line can meet the needs of customers, or to avoid the situation that the actual bandwidth of the leased line is too large from the claimed bandwidth, it is necessary to test the leased line to determine the actual bandwidth range of the leased line. [0003] The traditional method mainly uses the test method provided under RFC2544 / Y.1564 (both communication standard protocols) to test the actual bandwidth range of the leased line. For two devices on a dedicated line, one is used as a sending device ...

AI Technical Summary

Problems solved by technology

[0004] However, this method cannot be applied to the current relatively common asymmetric network. The so-called asymmetric network refers to the situation where the uplink and downlink bandwidths of the dedicated line are inconsistent. The bandwidth of the downlink channel of the private line (from the reflecting device to the sending device) is 5M, and the initiating device sends packets at a rate of 10M for detection. After the device reflects these packets, since the bandwidth of the downlink channel is only 5M, it cannot support such a large rate of packet transmission, resulting in 50% of the packets being lost on the path from the reflecting device to the sending device, resulting in packet loss Abnormal rate data, obviously cannot be used as a basis for bandwidth measurement

It can be seen that for this kind of asymmetric network, the traditional method cannot determine the packet loss rate of the one-way channel, so that the relevant parameters of the one-way channel bandwidth of the dedicated line cannot be accurately measured.

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