Network delay measuring equipment and method thereof

Abstract

The invention relates to a network delay measuring equipment and a method thereof. A TCP data packet is transmitted between a client and a network server through the network delay measuring equipment and the internet. The network delay measuring equipment upgrades the connection state of the TCP data packet according to the connection state, the transmission direction and the marker bit information of the TCP data packets and upgrades the time relevant to the connection state to the present time in order to compute the network delay time after one transmission process of the TCP data packet is ended; the connection state includes transaction start, transaction keep and transaction end. In the invention, the equipment and the method for negatively measuring the network delay by the TCP state machine have simple network deployment, occupy no network bandwidth and have better effect on up and down network delay measurement, widely applicable to computation of network delay.

Description

technical field [0001] The invention relates to the Internet, in particular to a network delay measurement method. Background technique [0002] Network latency refers to the round-trip time for a data packet to be sent from the user's computer to the web server, and then immediately returned from the web server to the user's computer. The higher the network latency, the slower the network speed. Due to the complexity of the Internet, dynamic changes in network traffic, and dynamic selection of network routes, network delays are constantly changing at any time, which we call jitter. The smaller the network delay and the network delay jitter, the better the network performance. On the Internet, typical network latencies range from tens to hundreds of milliseconds. The main factors affecting network delay are routing hops and network traffic. [0003] Usually the tool for measuring network delay is the network management tool PING (Packet Internet Grope). This kind of mea...

AI Technical Summary

Problems solved by technology

This kind of measurement tool uses an active measurement method, which needs to actively send data packets, so it needs to occupy network bandwidth, which will cause loss to the network to a certain extent

Moreover, this measurement method requires not only the sending device but also the receiving device, which wastes device resources and complicates network deployment.

[0004] The Packeteer product can measure network delay and does not require packet sending and receiving devices. However, this product has a good effect on downlink network delay measurement, but its effect on uplink network delay measurement is not ideal.

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