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A data stream forwarding method for fat-tree data center network architecture

A technology of data center network and data flow, applied in data exchange network, digital transmission system, electrical components, etc., can solve problems such as large data flow congestion, improve utilization rate, reduce the probability of collision, and reduce the probability of congestion Effect

Active Publication Date: 2017-10-13
DALIAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This approach can eventually cause congestion for large data streams

Method used

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  • A data stream forwarding method for fat-tree data center network architecture
  • A data stream forwarding method for fat-tree data center network architecture
  • A data stream forwarding method for fat-tree data center network architecture

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Embodiment Construction

[0021] The specific embodiments of the present invention will be further described below in conjunction with the description of the drawings and the technical solution.

[0022] Such as image 3 As shown, in a data center network with a 4-level Fat-Tree topology, each switch is an SDN switch supporting the OpenFlow protocol, and the bandwidth of each link in the network is 100 Mbps. Such as figure 1 As shown, run two timed tasks, each with T 1 And T 2 Collect all link statistics of the network and statistics of all data flows being forwarded for the period. Send a data stream f1 from host H1 to host H2, according to figure 2 As shown in the process, if there is no corresponding forwarding flow entry in the edge switch connected to H1, the forwarding path based on load balancing is calculated for f1.

[0023] Analyze the addresses of H1 and H2, determine that the highest layer that f1 needs to reach is the core switch layer, f1 starts forwarding from E1, and selects the link with ...

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Abstract

The invention discloses a data flow forwarding method oriented to a Fat-Tree data center network architecture, and belongs to the technical field of data center networks. It is characterized in that the method combines the data center network and SDN technology, in the data center network with Fat-Tree as the network topology, dynamically controls the forwarding of the flow in the network, and can dynamically adjust the routing and forwarding strategy of the flow according to the size of the flow in the network . It includes timing network link information collection module, data flow information collection module, large data flow detection and processing module, load balancing control forwarding module, and large data flow forwarding module functions. The present invention can realize the load balance of the data flow in the data center network, dynamically adjust the forwarding strategy according to the size of different data flows, improve the link utilization rate of the data center network, reduce the time delay of data flow forwarding, and reduce the link The probability of congestion occurring.

Description

Technical field [0001] The invention belongs to the field of data center networks, and relates to a data stream forwarding method oriented to a Fat-Tree data center network architecture, and specifically relates to a data stream routing and forwarding strategy applied in a data center network of the Fat-Tree network topology structure. Background technique [0002] With the development of Internet technology, especially the widespread application of cloud computing technology, more and more network applications and services are deployed in data centers. The ever-increasing number of users and the increase in user requirements for service quality pose challenges to traditional data center network services. The emergence of multi-equivalent path network topology represented by Fat-Tree provides new development opportunities for data center network services. The multi-path network topology utilizes additional redundant link bandwidth to overcome the service bottleneck caused by the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/813H04L12/803H04L47/20
Inventor 李克秋王珣齐恒
Owner DALIAN UNIV OF TECH
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