Dynamic network flow control method

Abstract

The invention discloses a dynamic network flow control method, which comprises the following steps of: evaluating flow by adopting a double-speed three-color marker algorithm, and marking a color mark for a message according to an evaluation result; according to the use condition of the total bandwidth, adopting a double-threshold method to carry out packet loss processing of different degrees on the messages of different colors marked by the double-speed three-color marker; and dynamically adjusting parameters in the double-speed three-color marker according to the utilization rate of the total bandwidth and the bandwidth use condition of each terminal, so that the proportion of the message marked as yellow is increased in idle, and the proportion of the message marked as red is increased in peak. According to the dynamic network flow control method provided by the invention, the bandwidth utilization rate is better improved while congestion is effectively avoided by dynamically adjusting parameters.

Description

technical field [0001] The invention relates to the field of network flow control, in particular to a dynamic network flow control method. Background technique [0002] Different from intranet applications, when enterprises use leased Internet bandwidth to provide external services, they need to consider the actual bandwidth occupancy of each terminal, so that valuable public network bandwidth resources cannot be unrestrictedly occupied, thereby affecting business operations. At the same time, during non-peak hours, try to meet the needs of terminals to avoid wasting public network bandwidth resources. QoS (Quality of Service, Quality of Service) refers to a network that can use various basic technologies to provide better service capabilities for specified network communications. technology. Compared with large-scale networks, enterprise networks or small campus networks generally lack professional flow control equipment and professional network management personnel. Secu...

AI Technical Summary

Problems solved by technology

[0006]As mentioned above, static QoS has already determined the available bandwidth of each terminal during configuration, as long as the configuration is reasonable, line congestion can be effectively avoided, but When the line is idle, the terminal cannot exceed its own bandwidth limit to use idle bandwidth resources, resulting in a serious waste of resources

The way of sharing bandwidth provides a way to avoid resource waste, but the sharing of bandwidth resources, competition between terminals during peak hours, and P2P traffic with low quality requirements have a very strong ability to seize bandwidth, which cannot guarantee that other terminal services cannot run normally.

Although elastic Qos solves the problems of line congestion and resource waste at the same time, the initial packet loss of TCP traffic will cause the growth of TCP traffic to be very slow. In the first few adjustment cycles of elastic Qos, TCP should be limited to a very low range. For applications with a single TCP stream (single-stream HTTP download, SCP, FTP), it cannot fully occupy idle resources when idle

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