Method and device for measuring available bandwidth by using mixed messages

Abstract

The invention discloses a method for measuring available bandwidth by using mixed messages, which comprises the following steps: an active measuring end sends an internet control message protocol (ICMP) to a passive measuring end and accounts the network normal ICMP message packet loss rate of the passive measuring end; the active measuring end sends mixed messages to the passive measuring end and accounts the ICMP message average packet loss rate of the mixed messages of the passive measuring end and the active measuring end judges that the difference between the ICMP message average packet loss rate and the network normal ICMP message packet loss rate is greater than a preset packet loss rate threshold, the average speed of the passive measuring end receiving the mixed messages is accounted and used as the available bandwidth from the active measuring end to the passive measuring end. The invention also discloses a device for measuring available bandwidth by using mixed messages. The method and the device can be used for reducing the complexity of bandwidth measurement.

Description

technical field [0001] The invention relates to the field of computer network electronic communication, in particular to a method and device for measuring available bandwidth by using mixed messages. Background technique [0002] With the development of computer technology, the Internet (Internet) has gradually become one of the important platforms for people to obtain information and communicate with each other. The rapid global expansion of the Internet and the rapid development of new services such as real-time services and multimedia services on the Internet have led to a decline in the performance of the Internet network. At present, the main factors affecting network performance are link bandwidth, link bottleneck, application and protocol design, and host system. Among them, link bandwidth is the most important network resource and one of the main determinants of transmission path performance. , and is closely related to network bottlenecks, overall performance analy...

AI Technical Summary

Problems solved by technology

In this case, the passive measurement terminal needs to take auxiliary measures such as installing corresponding measurement programs, which reduces the practicability and flexibility of the measurement method

[0009] 2. The calculation process of the above two measurement methods is complicated, especially the bandwidth measurement method based on PGM, which has strict requirements on timing accuracy, and the calculation complexity is relatively high

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