A highly scalable data center all-optical interconnection network system and communication method

Abstract

A high-expanded data center all-optically interconnected network system and a communication method are provided. A network system optical switch and a server of the invention adopt hierarchical network topological structure based on cluster expansion. The routing method comprises the following steps of: 1 generating a data packet; 2 calculating the communication wavelength of the data packet; 3 modulating the operating wavelength of a laser; 4 sending the data packets; 5 receiving the data packet by the optical switch; 6 determining whether the current optical switch satisfies a routing cut-off condition; 7 outputting the data packet from a routing port determined according to the routing method based on topology; 8 transmitting the data packet to a destination server; and 9 receiving the data packet by the destination server. The high-expanded data center all-optically interconnected network system has the advantages of simple structure, low communication delay and large throughput.

Description

technical field [0001] The invention belongs to the technical field of communication, and further relates to a highly scalable data center all-optical interconnection network system and a communication method in the technical field of Internet communication. The data center all-optical interconnection network system and the communication method thereof of the present invention can be used to construct a large-scale data center network and realize efficient communication between data center servers. Background technique [0002] In recent years, the emergence of various emerging applications and the deployment of cloud computing have put forward new requirements for the service quality and transmission capacity of the data center network. The traffic carried by the data center has increased sharply, and the scale of the data center has continued to expand. Costs are increasing, energy consumption is increasing rapidly, and management is more complex. Therefore, building large...

AI Technical Summary

Problems solved by technology

The shortcomings of this patented technology system are: the network topology provides fewer interconnection ports, and the system has the problem of limited expansion; the top-level ring structure has a large network diameter and low bisection bandwidth, and the system has There are problems of high communication delay and serious network congestion; in addition, because the system uses a variety of interconnection devices (including top-of-rack optical switches, top-of-rack electrical switches, copper wires, optical fibers, etc.), the system is difficult to build, maintain and manage question

The disadvantage of this patented technical method is: during the period from when the electrical control network sends the electrical link construction information to reserve the optical link to when the optical information is transmitted, the reserved optical link cannot be used by other servers, and the resources of the network Low utilization rate and long information waiting delay exacerbate the congestion problem in the network, which further affects the overall performance of the data center network

The disadvantages of the system in this paper are: using high-radix optical switches to directly interconnect all racks or access layer switches, due to the limitation of the number of optical switch ports, this all-optical interconnection network can only provide rack-level optical Connection, communication between servers in the rack still requires the use of electrical switches

The shortcomings of the communication method in this paper are: the network adopts optical circuit switching, which has the problems of coarse information exchange granularity, low link utilization, high path establishment overhead, and serious network congestion.

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