Load Balancing Method for Multiple Types of Egress Gateways

Abstract

The invention discloses a method for realizing load balancing of multi-type egress gateways, which mainly solves the unreasonable flow distribution, high transmission delay and network throughput of existing multi-type egress gateways when multi-link simultaneous large data transmission is performed. low problem. The implementation scheme is: 1) Build a multi-type egress gateway system; 2) Preprocess the link to balance the traffic of the two links with the highest and the lowest remaining bandwidth; 3) Introduce a load balancing judgment mechanism to calculate the current link Quality, determine whether the link is in a load-balanced state by comparing it with the initial target threshold: 4) For the state where the link load is not balanced, use routing fragments to perform secondary cutting, distribute them to each link, and then judge, This iteration continues until the multi-egress gateway link is in a load-balanced state. The invention reduces the transmission time delay, improves the network throughput, and can be used in the gateway system where the network environment of each exit link is quite different.

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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