Load sharing method and device
A technology of load sharing and algorithm, which is applied in the field of communication, can solve the problems of out-of-order packets and affect the processing efficiency of load sharing, and achieve the effect of improving processing efficiency
Inactive Publication Date: 2013-12-18
BEIJING HUAWEI DIGITAL TECH
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[0005] In the existing flow-by-flow load sharing methods, a fixed load sharing algorithm is generally used to perform load sharing calculations. The inventors have found through research that the technical solutions in the prior art, when including fragmented UDP or TCP messages and When the mixed data flow of non-fragmented UDP or TCP packets is used for load sharing, the packets may be out of order, which affects the processing efficiency of load sharing.
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[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0047] In the load sharing method in the prior art, when load sharing is performed on a mixed message data flow including fragmented UDP or TCP messages and non-fragmented UDP or TCP messages, message disorder may occur; The inventor has found through research that the cause of this defect is that, if figure 1 As shown, the load sharing method in the prior art will use the IP quintuple HASH algorithm for non-fragmented UDP packets and TCP packets, but will use the ...
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The invention discloses a load sharing method and device. The load sharing method includes the steps of obtaining the value of the number of TCP or UDP fragmented messages in messages received in a set time and determining a corresponding load sharing algorithm according to the value of the number and a preset algorithm determining rule. According to the load sharing method and device, by obtaining the value of the number of the TCP or UDP fragmented messages in the messages received in the set time, whether the fragmented messages which affect the message sequence exist in the current received messages or not can be known; when the number of the TCP or UDP fragmented messages in the messages in the set time reach to the degree which will affect the message sequence, the load sharing algorithm is changed, and thus the order preserving of special message flow amount can be achieved.
Description
technical field [0001] The invention belongs to the communication field, and in particular relates to a load sharing method and device. Background technique [0002] Load sharing, also known as load balancing, is a technology that balances the load and distributes it to multiple operating units. By analyzing data packets in real time, it can grasp the data flow status in the network and distribute tasks to multiple operating units in a reasonable and balanced manner. The purpose of the operation unit is to improve the business processing capability through the cooperation of multiple operation units. [0003] Load sharing is based on the existing network structure and is cheap and transparent. It can effectively expand the bandwidth of network devices and servers, increase throughput, strengthen network data processing capabilities, and improve network flexibility and availability. [0004] The methods widely used in load balancing include flow-by-flow load balancing. Flow-...
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IPC IPC(8): H04L12/803
Inventor 周冲王素彬唐湜甘立国徐芳瑞杜小健
Owner BEIJING HUAWEI DIGITAL TECH