Data center network route switching system and method based on flow characteristics

Abstract

The invention provides a data center network route switching system and method based on flow characteristics. The system comprises a data flow detection module, a network state management module and a data flow scheduling module; the data flow detection module screens the data flow for the first time according to the TCP cache value and transmits a first screening result to the data flow scheduling module; the network state management module detects the current network state information of the data center network in real time; the data stream scheduling module screens the second data stream for the second time, divides the second data stream into a data stream I and a data stream II, and dynamically adjusts the transmission path of the data stream II according to the current network state information; and the network state management module receives the dynamic adjustment result and forwards the dynamic adjustment result to the switch of the edge layer, and the switch of the edge layer controls forwarding of the data flow II according to the dynamic adjustment result. According to the invention, the flow transmission rate and the network throughput in the data center network are improved.

Description

technical field [0001] The invention relates to the field of computer networks and network traffic routing, in particular to a data center network routing and switching system and method based on flow characteristics. Background technique [0002] With the exponential growth of Internet applications and services, data centers have gradually become an irreplaceable information service infrastructure. The deployment of a large number of bandwidth-intensive services leads to an increase in the internal traffic of the data center, and the traditional hierarchical tree-based network architecture has problems such as limited bandwidth and poor scalability. Therefore, many new topologies (Fat-Tree, VL2, DCell) It is proposed that these architectures provide multi-path transmission methods to obtain higher bisection bandwidth and reliability. [0003] The current multi-path routing algorithms widely used in data center networks, such as equal-cost multi-path routing and Valiant Loa...

AI Technical Summary

Problems solved by technology

However, studies have shown that the length of traffic in the data center network is significantly unbalanced: 90% of the flow length does not exceed 1M, while a small number of flows with a length of more than 100M occupy most of the bandwidth in the network; resulting in data network The center has the problem of low efficiency of multi-path traffic transmission

[0004] The shortest path first routing method is suitable for flows with a small length, but it may map multiple flows with a long length to the same link, causing network congestion and packet loss, resulting in a decrease in throughput

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