Method and device for detecting packet port congestion

Abstract

The invention provides a message port congestion detection method. The method includes: performing statistics on single-broadcast message number or group-broadcast message number cached in a port queue; obtaining the cached single-broadcast message number or group-broadcast message number once at each scanning period; comparing the obtained single-broadcast message number or group-broadcast message number with a group of partition threshold values to determine the corresponding partitions of the obtained single-broadcast message number or group-broadcast message number, and correspondingly increasing count of the partitions; repeating the steps to obtain count of partitions corresponding to each of a plurality of scanning periods; and performing statistics on amount of count of partitions which do not fall in predetermined normal partitions, and judging a port is in a congestion state if the amount is larger than a congestion time threshold value. Compared with the prior art, the message port congestion detection method and device can monitor the congestion state of the port queue in a dynamic mode and meets requirements for increasing security and monitoring refinement in network.

Description

technical field [0001] The invention relates to the field of network communication, in particular to a method and device for detecting message port congestion. Background technique [0002] In the switch chip, according to the needs of network traffic management, the forwarded packets are often assigned to multiple queues. The switch chip schedules the packets stored in the internal If the rate is slower than the dispatched rate, the length of the corresponding queue will increase accordingly, resulting in congestion of stored packets, and correspondingly, subsequent packets input to this queue will be discarded. [0003] Generally speaking, the state of port packet congestion is relatively random, and the upper-layer software cannot dynamically monitor the congestion state of each queue in the internal memory of the chip, so it cannot provide real-time and effective impact on network traffic management, which will cause congestion within a certain time slice , which affect...

AI Technical Summary

Problems solved by technology

[0002] In the switch chip, according to the needs of network traffic management, the forwarded packets are often assigned to multiple queues. The switch chip schedules the packets stored in the internal If the rate is slower than the dispatched rate, the length of the corresponding queue will become longer accordingly, resulting in congestion of stored messages, and correspondingly, subsequent messages input to this queue will be discarded

[0003] Generally speaking, the state of port packet congestion is relatively random, and the upper-layer software cannot dynamically monitor the congestion state of each queue in the internal memory of the chip, so it cannot provide real-time and effective impact on network traffic management, which will cause congestion within a certain time slice , which affects performance such as packet forwarding delay, and ultimately leads to an unstable network environment

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