Optical interconnection network system of data center based on hyper-cubic cluster and communication method

Abstract

The invention discloses an optical interconnection network system of a data center based on a hyper-cubic cluster and a communication method, which are mainly used for solving the problems of insufficient bandwidth of a network link and high network expense and energy consumption of the traditional data center. The network system provided by the invention comprises N top-of-rack optical switches, N top-of-rack electric switches and N*s servers, wherein each top-of-rack electric switch is connected with s servers and one of the top-of-rack optical switch to form N basic network units; the N basic network units are divided into k clusters, the basic units in the same cluster are interconnected through the top-of-rack optical switches to form a hyper-cubic topological structure, and the basic units in different clusters are interconnected through the top-of-rack optical switches to form an annular topological structure; and packet switching is adopted in the communication of the server of the same basic unit, and multi-wavelength-based optical circuit switching is adopted in the communication of the servers of different basic units. By using the optical interconnection network system and the communication method, the port number of the optical switches and network blockage conditions can be effectively reduced, the expandability of a network can be ensured, and the throughput and the performance of the network can be improved.

Description

technical field [0001] The invention belongs to the technical field of the Internet, and in particular relates to a data center optical interconnection network system, which can be used to realize efficient communication between data center network servers. Background technique [0002] With the development of cloud computing technology, data centers have transformed from traditional storage nodes into high-performance resource platforms for various services and applications. At the same time, in order to effectively meet the demand of cloud computing for massive resources, the data center will have tens of thousands or even hundreds of thousands of servers, and the data traffic of the network at the same time will reach P(10 15 ) bit magnitude. Therefore, the traditional data center network architecture is difficult to support the operation of large-scale data centers under the background of cloud computing. Mohammad Al-Fares et al proposed in the article "A scalable, com...

AI Technical Summary

Problems solved by technology

However, the existing optical interconnection network architecture has the following two problems: First, the optical interconnection network adopts a centralized architecture, that is, the network uses high-radix optical switches to connect all racks or underlying switching units

Therefore, the scale of the entire network is severely limited by the number of ports of the core optical switch, and the scalability of the network is not high.

Second, the optical interconnection network generally adopts the optical circuit switching mechanism, but no effective solution has been proposed to solve the problem of low utilization rate of optical circuit switching bandwidth and large switching granularity

Therefore, the congestion of the optical network is relatively serious, and the network performance cannot be effectively improved.

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