Method and apparatus for controlling network congestion

Abstract

Embodiments of the present invention disclose a method and apparatus for controlling network congestion. The method comprises that: if business success rates in a consecutive N control periods are all smaller than a preset business success ratio threshold, and network congestion notifications are received, then monitoring on network conditions is started; after the monitoring is started, network delay of information back and forth in each control period is counted, and an average time delay in each control period after the start of the monitoring is obtained; after the start of the monitoring, when the average time delay of any one control period is bigger than a preset upper limit value in a target time delay interval, allowable issuing business quantity of first messages in a next control period of any one control period is reduced. The apparatus comprises a start module, a counting module and a first control module. According to the embodiments, a problem of incorrect control easily caused by sole consideration of business success rates in conventional HTR flow control is prevented, and more effective control of network congestion is realized.

Description

technical field [0001] The embodiments of the present invention relate to communication technologies, and in particular to a network congestion control method and device. Background technique [0002] Network congestion can be controlled at the link layer, but the congestion control at the link layer can only do its best to ensure the reliable transmission of messages. If the traffic exceeds the transmission capacity of the link, messages will be randomly discarded. Random discarding of messages causes more damage to telecom signaling services than flow-based datagram transmission. This is mainly due to the requirement for delay in telecom signaling interaction. Protocols usually define interaction timeout requirements, and the business layer is not allowed to retry repeatedly. A session in the interaction process of telecommunication signaling usually includes multiple interaction processes, and the failure of any interaction will cause service damage. Therefore, random mes...

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Problems solved by technology

[0004] However, there are many factors that affect the service success rate. When the service success rate is used as the basis for congestion judgment, it is usually easy to miscontrol, resulting in the inability to effectively control network congestion.

For example, when the overload or congestion is not caused by the device itself, the success rate is low at this time, and at this time, flow control is started on the network, even if the traffic volume is reduced at this time, the congestion cannot be solved

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