Load balancing method, device and system

Abstract

Disclosed are a load balancing method, device and system. The load balancing method comprises: accumulating and counting each link of a plurality of links to obtain accumulated and counted values; comparing the accumulated and counted values of the plurality of links to obtain a comparison result; and determining the load condition of the plurality of links according to the comparison result, and performing load balancing on the plurality of links according to the load condition. By means of the present invention, the effects of balancing the loads of a greater number of links in a practical application and enhancing the working frequency of load balancing can be achieved.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a load balancing method, device and system. Background technique [0002] In a switching network, load balancing is an important technical indicator. The function of load balancing is to compare links among links and select a link with a lighter load for sending the current cell. In the actual networking process, each device is reachable by multiple links, and it is necessary to maintain load balance among multiple links to avoid the situation that some links are overloaded and other links are relatively idle, so as to achieve The purpose of making full use of bandwidth. [0003] Early switch chips generally only support fixed-length cells, as long as the number of cells passing through each link is the same, the purpose of load balancing can be achieved. However, the efficiency of fixed-length cells is low, and people have proposed a variable-length cell method. This method ...

AI Technical Summary

Problems solved by technology

However, the efficiency of fixed-length cells is low, and people have proposed a variable-length cell method. This method uses the limited bandwidth to transmit effective data as much as possible, and greatly improves the transmission efficiency.

But at this time, if the load balancing method of fixed-length cells is still used, although the number of cells passed by each link is the same, the traffic between the links cannot be guaranteed due to the different cell lengths.

Obviously, the load balancing method of fixed-length cells is not suitable for the variable-length cell mode. To realize the load balancing of variable-length cells, the length of each cell must be considered

[0004] Moreover, the load balancing method of fixed-length cells is relatively easy to implement for applications with a small number of links, but for applications with a large number of links, the operating frequency is relatively low due to the relatively large scale, so it is necessary to consider increasing the operating frequency. method

[0005] Aiming at the problem that the fixed-length cell load balancing method in the related art is not applicable to the variable-length cell mode and the power efficiency is low, no effective solution has been proposed yet

Images