Data center network routing method based on Fat-Tree structure
A data center network and routing technology, applied in data exchange networks, digital transmission systems, electrical components, etc., can solve the problems of not considering local rerouting, low flow scheduling cost, etc., and improve network throughput and link utilization. , the effect of reducing forwarding delay, packet loss rate and forwarding delay
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[0030] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0031] figure 1 Is the system architecture diagram of the present invention, such as figure 1 As shown, using Floodlight as the controller, with T 1 And T 2 Periodically collect and update all link status information and data flow statistics in the network, and store them.
[0032] Such as figure 2 As shown, SDN switches supporting the OpenFlow protocol are used to form a 4-element Fat-Tree structure data center network, which includes 20 OpenFlow switches and 16 hosts, and the maximum transmission bandwidth of each link in the network is set to be 100Mbps.
[0033] Such as image 3 Shown when figure 2 When host H1 in H1 sends a data stream f1 to host H2, when the edge switch E1 connected to H1 does not have a corresponding forwarding flow table entry, the switch sends a Packet-In message to the controller, and the controller uses the DLB algor...
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