Load balancing method for multi-type exit gateway

Abstract

The invention discloses a load balancing method for a multi-type exit gateway, which mainly solves the problems of unreasonable traffic distribution, high transmission delay and low network throughput when the existing multi-type exit gateway transmits big data on multiple links. According to the solution, the method comprises the steps of: 1) setting up a multi-type exit gateway system; 2) preprocessing links, and performing traffic balancing on the two links having the highest and lowest remaining bandwidths; 3) introducing a load balancing judgment mechanism, calculating the quality of the current link, and judging whether the link is in a load balancing state by comparing with an initial target threshold; and 4) when the load of the link does not reach a balancing state, performing secondary cutting by adopting a routing fragment, allocating the traffic to each link, then performing judgment, and so on, till the links of the multi-type exit gateway are in the load balancing state. The method reduces the transmission delay, improves the network throughput, and can be applied to a gateway system having great outlet link network environment difference.

Description

technical field [0001] The invention belongs to the technical field of communication, and further relates to a load balancing method, which can be used in the scene where an egress gateway processes multi-link data transmission, and improves the problem of unreasonable data volume distribution in the transmission process. Background technique [0002] Due to the rapid increase of mobile Internet users, single-link egress gateways can no longer meet the bandwidth requirements of users, so more and more companies have begun to invest in the research and development of multi-egress gateways. The multi-exit gateway not only solves the problem of single point of failure, but also improves the throughput of the entire network. [0003] Although the access of multiple egress gateways and multiple links can increase bandwidth, if the link selection is not scientific enough, users still cannot get high-bandwidth services. Therefore, it is of great significance to study the load bala...

AI Technical Summary

Problems solved by technology

However, this method also has shortcomings. First, in addition to delay, there are a series of other criteria such as throughput and remaining bandwidth to reflect the quality of the link. It seems a bit one-sided to use delay as the evaluation parameter.

Second, in the process of redistribution of traffic, due to the large differences between the links of multiple types of egress gateways, there may be situations where multiple redistributions still cannot achieve load balancing

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