Packet loss detecting method and system as well as transmitting equipment and receiving equipment

Abstract

The present invention provides a packet loss detection method and system, a sending device and a receiving device. The method includes: receiving, by a receiving end, a service packet whose color belongs to a first color spectrum; counting, by the receiving end, the number of the service packets whose color belongs to the first color spectrum; after receiving a detection packet, continuing, by the receiving end, counting the number of the service packets whose color belongs to the first color spectrum, where the detection packet carries the number of service packets whose color belongs to the first color spectrum and that are sent by a sending end; when a preset condition is satisfied, stopping, by the receiving end, counting the number of the service packets whose color belongs to the first color spectrum, where the number of the service packets whose color belongs to the first color spectrum counted by the receiving end and the number of the service packets whose color belongs to the first color spectrum and that are sent by the sending end carried in the detection packet are used for calculating the number of lost packets. Through embodiments of the present invention, the accuracy of packet loss detection may be improved.

Description

technical field [0001] The present invention relates to network communication technology, in particular to a packet loss detection method and system, sending equipment and receiving equipment. Background technique [0002] In an Internet Protocol (English full name is Internet Protocol, hereinafter referred to as IP) bearer network, packet loss is one of important measurement indicators of service quality (English full name is Quality of Service, hereinafter referred to as QoS). [0003] There are many ways to detect packet loss, and one of the existing ways to detect packet loss is based on the detection of service packet statistics. In the detection method based on statistics of service packets, the number of lost packets may be calculated at the receiving end according to the number of service packets received before the detection of packets. For example, if the sender sends four service packets within a statistical time period, and then sends a detection packet, for the...

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Problems solved by technology

[0004] However, when the path for transmitting packets is a load-sharing multipath, or there is QoS scheduling in the device transmitting packets, disorder may occur, that is, the packets sent by the sending end in the order of arrival at the receiving end order changed

For example, the above-mentioned sending end sends the service message first, and then sends the detection message; and at the receiving end, it may occur that the service message is received after the detection message, which will cause when calculating the number of lost packets, The service packets received after the packets are detected are not counted, so the calculated number of packet loss is inaccurate

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