Passive optical distribution node and electro-optical hybrid double-layer access network

A technology for distributing nodes and passive light, applied in electrical components, wavelength division multiplexing systems, optical multiplexing systems, etc., can solve the problems of occupying the switching bandwidth of the top-of-rack switch and not being able to realize direct communication, and achieve high-link road utilization and achieve efficient utilization
CN110809202AActive Publication Date: 2020-02-18SOUTHEAST UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SOUTHEAST UNIV
Publication Date
2020-02-18

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Abstract

According to the invention, a passive optical distribution node is constructed, so that a plurality of servers connected to the same passive optical distribution node form a calculation cluster, the calculation cluster is used as a basic unit to form a data center electro-optical hybrid double-layer access network, and the network access function of the servers in the data center is realized. Flowconvergence of m servers in one calculation cluster is achieved through passive optical distribution nodes, and the high link utilization rate of a connecting link of a passive optical distribution node convergence switching interface and an inter-cluster switch switching interface is achieved. The calculation clusters can realize direct communication of servers in the clusters through channels in the clusters without forwarding of electric switching equipment, so that the forwarding time delay of inter-cluster data communication is reduced; the network provided by the invention can greatly reduce the number of access layer network electric switching equipment, reduce network power consumption and simplify the complexity of layout and wiring of an upper layer network; Meanwhile, the tunable transceiver is configured for the dual-transceiving network interface card of the server, so that the network bandwidth can be flexibly configured according to the real-time network load.
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Description

technical field

[0001] The invention relates to the field of optical fiber communication, in particular to a passive optical distribution node and an electro-optical hybrid double-layer access network formed by it. Background technique

[0002] The traditional data center network structure is a "client-server" business-oriented "access-aggregation-core" three-layer network architecture, which is suitable for a traffic model in which "south-north" traffic is the main body. With the rise of various cloud computing services, cloud computing centers are deployed on a large scale. According to Cisco's forecast, by 2021, cloud data centers will handle 94% of workloads and computing instances, while traditional data centers will only account for 6%. At the same time, because cloud computing services need to exchange a large amount of data between servers in the data center, the "east-west" traffic in the data center has increased significantly, and has become the main body of data ...

Claims

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