Cloud load balancing method and device based on switch, and storage medium

Abstract

The embodiment of the invention discloses a cloud load balancing method and device based on a switch and a storage medium, relates to the technical field of big data, and can relieve the problem that the memory of a switch load balancer is exhausted due to a DDOS attack. The method comprises the following steps that: a controller deployed in a control plane adds entries to a connection table in a data plane; the hit result is imported into a mapping table, meanwhile, the non-hit result is input into a Bloom filter set, the Bloom filter set comprises at least three Bloom filters, the Bloom filters are sequentially connected in series, and cyclic updating of the Bloom filter set is triggered according to the number of elements recorded in the Bloom filters; results output by the Bloom filter group are imported into a synchronization table; and a hit result output by the synchronization table is imported into the mapping table through the routing table. The method is suitable for fourth-layer load balancing.

Description

technical field [0001] The present invention relates to the field of big data technology, in particular to a switch-based cloud load balancing method, device and storage medium. Background technique [0002] With the rapid development of the information age, the demand for network speed and bandwidth is constantly increasing. At present, each core part of the existing network needs to increase its processing power and calculation intensity correspondingly with the increase of business volume and huge data flow and access volume, which cannot be borne by a single server device at all. [0003] In this case, if the hardware is upgraded in large quantities, existing resources will be wasted, and even the hardware with excellent performance cannot meet the ever-increasing business volume requirements. However, the number of serviceable users can be increased by increasing the number of servers. When the number of servers reaches a certain level, it is necessary to adopt a four...

AI Technical Summary

Problems solved by technology

A current solution is a load balancer implemented on a programmable switch, which has the advantage of overcoming the low flexibility and high cost of a dedicated load balancer and the high latency of a software load balancer

However, due to the relatively limited storage space of the switch, the maintenance of each connection state can easily lead to the exhaustion of storage in large data centers, making it difficult to deal with resource exhaustion attacks

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