Method and apparatus for controlling network congestion

Abstract

Disclosed are a network congestion control method and device. The method includes: if the service success rates in N successive control periods are all less than a pre-set service success proportion threshold value, and a network congestion announcement is received, then initiating monitoring of the network status; counting the network time delay of message roundtripping within each control period after initiating monitoring to obtain the average time delay of each control period after initiating monitoring; and, when the average time delay of any control period after initiating monitoring is greater than the upper limit value of a pre-set target time delay interval, reducing the amount of traffic that is allowed to send a service first message in the next control period after any control period. The device includes a starting control module, a statistics module and a first control module. The present embodiments avoid the problem that it is easy to cause errors in control because the current HTR flow control only considers the service success rate, realizing a more effective control of network congestion.

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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