SDN-based high-volume data stream load balancing system and method

Abstract

The invention discloses an SDN-based high-volume data stream load balancing system and method, which mainly solve the problems of uneven loads and link congestion in a network core layer of the conventional data center. The system comprises a Fat-Tree underlying network and an SDN controller, wherein a topological information module, a high-volume data stream routing table module, and a high-volume data stream routing computation module are additionally arranged in the SDN controller; the high-volume data stream routing computation module computes paths for high-volume data streams according to information maintained by the topological information module and the high-volume data stream routing table module; a source aggregation layer switch adopts a packet-level multi-path routing strategy, and the scheduling processing of disordered packets is completed at a destination aggregation layer switch. The SDN-based high-volume data stream load balancing system and method provided by the invention have the advantages that a Fat-Tree network core layer adopts the multi-path routing strategy for the high-volume data streams, so as to solve the problems of uneven loads and link congestion in the network core layer of the data center; a scheduling mechanism for high-volume data stream data packets is introduced to overcome the problem of packet disordering. The SDN-based high-volume data stream load balancing system and method can be used for data forwarding.

Description

Technical field [0001] The invention belongs to the technical field of communication networks, and specifically relates to a large-flow load balancing technology, which can be used in a data center network with a Fat-Tree structure. Background technique [0002] With the rapid growth of Internet online business users and mass access bandwidth, data center network traffic is showing a rapid growth trend. Internet services put forward higher and higher transmission quality requirements for data centers, including large bandwidth, low delay, security assurance, and flexible scheduling. Under this trend, various solutions have emerged. The software-defined network SDN technology represented by the OpenFlow protocol is a new type of network switching model that has emerged, which completely subverts the original control and data forwarding. The practice of using the same plane and the separation of the control plane and the forwarding plane greatly simplifies the network forwarding e...

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Problems solved by technology

[0005] The purpose of the present invention is to propose a SDN-based large-flow load balancing system and method with remarkable balancing effects based on the Fat-Tree topology commonly used in the current data center network, so as to solve the problem of uneven load and chain link existing in the core layer of the network. road congestion problem

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